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Member "ffmpeg-4.0.1/doc/APIchanges" (20 Apr 2018, 119991 Bytes) of package /linux/misc/ffmpeg-4.0.1.tar.xz:


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    1 Never assume the API of libav* to be stable unless at least 1 month has passed
    2 since the last major version increase or the API was added.
    3 
    4 The last version increases were:
    5 libavcodec:    2017-10-21
    6 libavdevice:   2017-10-21
    7 libavfilter:   2017-10-21
    8 libavformat:   2017-10-21
    9 libavresample: 2017-10-21
   10 libpostproc:   2017-10-21
   11 libswresample: 2017-10-21
   12 libswscale:    2017-10-21
   13 libavutil:     2017-10-21
   14 
   15 
   16 API changes, most recent first:
   17 
   18 -------- 8< --------- FFmpeg 4.0 was cut here -------- 8< ---------
   19 
   20 2018-04-03 - d6fc031caf - lavu 56.13.100 - pixdesc.h
   21   Deprecate AV_PIX_FMT_FLAG_PSEUDOPAL and make allocating a pseudo palette
   22   optional for API users (see AV_PIX_FMT_FLAG_PSEUDOPAL doxygen for details).
   23 
   24 2018-04-01 - 860086ee16 - lavc 58.17.100 - avcodec.h
   25   Add av_packet_make_refcounted().
   26 
   27 2018-04-01 - f1805d160d - lavfi 7.14.100 - avfilter.h
   28   Deprecate use of avfilter_register(), avfilter_register_all(),
   29   avfilter_next(). Add av_filter_iterate().
   30 
   31 2018-03-25 - b7d0d912ef - lavc 58.16.100 - avcodec.h
   32   Add FF_SUB_CHARENC_MODE_IGNORE.
   33 
   34 2018-03-23 - db2a7c947e - lavu 56.12.100 - encryption_info.h
   35   Add AVEncryptionInitInfo and AVEncryptionInfo structures to hold new side-data
   36   for encryption info.
   37 
   38 2018-03-21 - f14ca60001 - lavc 58.15.100 - avcodec.h
   39   Add av_packet_make_writable().
   40 
   41 2018-03-18 - 4b86ac27a0 - lavu 56.11.100 - frame.h
   42   Add AV_FRAME_DATA_QP_TABLE_PROPERTIES and AV_FRAME_DATA_QP_TABLE_DATA.
   43 
   44 2018-03-15 - e0e72539cf - lavu 56.10.100 - opt.h
   45   Add AV_OPT_FLAG_BSF_PARAM
   46 
   47 2018-03-07 - 950170bd3b - lavu 56.9.100 - crc.h
   48   Add AV_CRC_8_EBU crc variant.
   49 
   50 2018-03-07 - 2a0eb86857 - lavc 58.14.100 - mediacodec.h
   51   Change the default behavior of avcodec_flush() on mediacodec
   52   video decoders. To restore the previous behavior, use the new
   53   delay_flush=1 option.
   54 
   55 2018-03-01 - 6731f60598 - lavu 56.8.100 - frame.h
   56   Add av_frame_new_side_data_from_buf().
   57 
   58 2018-02-15 - 8a8d0b319a
   59   Change av_ripemd_update(), av_murmur3_update() and av_hash_update() length
   60   parameter type to size_t at next major bump.
   61 
   62 2018-02-12 - bcab11a1a2 - lavfi 7.12.100 - avfilter.h
   63   Add AVFilterContext.extra_hw_frames.
   64 
   65 2018-02-12 - d23fff0d8a - lavc 58.11.100 - avcodec.h
   66   Add AVCodecContext.extra_hw_frames.
   67 
   68 2018-02-06 - 0694d87024 - lavf 58.9.100 - avformat.h
   69   Deprecate use of av_register_input_format(), av_register_output_format(),
   70   av_register_all(), av_iformat_next(), av_oformat_next().
   71   Add av_demuxer_iterate(), and av_muxer_iterate().
   72 
   73 2018-02-06 - 36c85d6e77 - lavc 58.10.100 - avcodec.h
   74   Deprecate use of avcodec_register(), avcodec_register_all(),
   75   av_codec_next(), av_register_codec_parser(), and av_parser_next().
   76   Add av_codec_iterate() and av_parser_iterate().
   77 
   78 2018-02-04 - ff46124b0d - lavf 58.8.100 - avformat.h
   79   Deprecate the current names of the RTSP "timeout", "stimeout", "user-agent"
   80   options. Introduce "listen_timeout" as replacement for the current "timeout"
   81   option, and "user_agent" as replacement for "user-agent". Once the deprecation
   82   is over, the old "timeout" option will be removed, and "stimeout" will be
   83   renamed to "stimeout" (the "timeout" option will essentially change semantics).
   84 
   85 2018-01-28 - ea3672b7d6 - lavf 58.7.100 - avformat.h
   86   Deprecate AVFormatContext filename field which had limited length, use the
   87   new dynamically allocated url field instead.
   88 
   89 2018-01-28 - ea3672b7d6 - lavf 58.7.100 - avformat.h
   90   Add url field to AVFormatContext and add ff_format_set_url helper function.
   91 
   92 2018-01-27 - 6194d7e564 - lavf 58.6.100 - avformat.h
   93   Add AVFMTCTX_UNSEEKABLE (for HLS demuxer).
   94 
   95 2018-01-23 - 9f07cf7c00 - lavu 56.9.100 - aes_ctr.h
   96   Add method to set the 16-byte IV.
   97 
   98 2018-01-16 - 631c56a8e4 - lavf 58.5.100 - avformat.h
   99   Explicitly make avformat_network_init() and avformat_network_deinit() optional.
  100   If these are not called, network initialization and deinitialization is
  101   automatic, and unlike in older versions, fully supported, unless libavformat
  102   is linked to ancient GnuTLS and OpenSSL.
  103 
  104 2018-01-16 - 6512ff72f9 - lavf 58.4.100 - avformat.h
  105   Deprecate AVStream.recommended_encoder_configuration. It was useful only for
  106   FFserver, which has been removed.
  107 
  108 2018-01-05 - 798dcf2432 - lavfi 7.11.101 - avfilter.h
  109   Deprecate avfilter_link_get_channels(). Use av_buffersink_get_channels().
  110 
  111 2017-01-04 - c29038f304 - lavr 4.0.0 - avresample.h
  112   Deprecate the entire library. Merged years ago to provide compatibility
  113   with Libav, it remained unmaintained by the FFmpeg project and duplicated
  114   functionality provided by libswresample.
  115 
  116   In order to improve consistency and reduce attack surface, it has been deprecated.
  117   Users of this library are asked to migrate to libswresample, which, as well as
  118   providing more functionality, is faster and has higher accuracy.
  119 
  120 2017-12-26 - a04c2c707d - lavc 58.9.100 - avcodec.h
  121   Deprecate av_lockmgr_register(). You need to build FFmpeg with threading
  122   support enabled to get basic thread-safety (which is the default build
  123   configuration).
  124 
  125 2017-12-24 - 8b81eabe57 - lavu 56.7.100 - cpu.h
  126   AVX-512 flags added.
  127 
  128 2017-12-16 - 8bf4e6d3ce - lavc 58.8.100 - avcodec.h
  129   The MediaCodec decoders now support AVCodecContext.hw_device_ctx.
  130 
  131 2017-12-16 - e4d9f05ca7 - lavu 56.6.100 - hwcontext.h hwcontext_mediacodec.h
  132   Add AV_HWDEVICE_TYPE_MEDIACODEC and a new installed header with
  133   MediaCodec-specific hwcontext definitions.
  134 
  135 2017-12-14 - b945fed629 - lavc 58.7.100 - avcodec.h
  136   Add AV_CODEC_CAP_HARDWARE, AV_CODEC_CAP_HYBRID, and AVCodec.wrapper_name,
  137   and mark all AVCodecs accordingly.
  138 
  139 2017-11-29 - d268094f88 - lavu 56.4.100 / 56.7.0 - stereo3d.h
  140   Add view field to AVStereo3D structure and AVStereo3DView enum.
  141 
  142 2017-11-26 - 3a71bcc213 - lavc 58.6.100 - avcodec.h
  143   Add const to AVCodecContext.hwaccel.
  144 
  145 2017-11-26 - 3536a3efb9 - lavc 58.5.100 - avcodec.h
  146   Deprecate user visibility of the AVHWAccel structure and the functions
  147   av_register_hwaccel() and av_hwaccel_next().
  148 
  149 2017-11-26 - 24cc0a53e9 - lavc 58.4.100 - avcodec.h
  150   Add AVCodecHWConfig and avcodec_get_hw_config().
  151 
  152 2017-11-22 - 3650cb2dfa - lavu 56.3.100 - opencl.h
  153   Remove experimental OpenCL API (av_opencl_*).
  154 
  155 2017-11-22 - b25d8ef0a7 - lavu 56.2.100 - hwcontext.h hwcontext_opencl.h
  156   Add AV_HWDEVICE_TYPE_OPENCL and a new installed header with
  157   OpenCL-specific hwcontext definitions.
  158 
  159 2017-11-22 - a050f56c09 - lavu 56.1.100 - pixfmt.h
  160   Add AV_PIX_FMT_OPENCL.
  161 
  162 2017-11-11 - 48e4eda11d - lavc 58.3.100 - avcodec.h
  163   Add avcodec_get_hw_frames_parameters().
  164 
  165 -------- 8< --------- FFmpeg 3.4 was cut here -------- 8< ---------
  166 
  167 2017-09-28 - b6cf66ae1c - lavc 57.106.104 - avcodec.h
  168   Add AV_PKT_DATA_A53_CC packet side data, to export closed captions
  169 
  170 2017-09-27 - 7aa6b8a68f - lavu 55.77.101 / lavu 55.31.1 - frame.h
  171   Allow passing the value of 0 (meaning "automatic") as the required alignment
  172   to av_frame_get_buffer().
  173 
  174 2017-09-27 - 522f877086 - lavu 55.77.100 / lavu 55.31.0 - cpu.h
  175   Add av_cpu_max_align() for querying maximum required data alignment.
  176 
  177 2017-09-26 - b1cf151c4d - lavc 57.106.102 - avcodec.h
  178   Deprecate AVCodecContext.refcounted_frames. This was useful for deprecated
  179   API only (avcodec_decode_video2/avcodec_decode_audio4). The new decode APIs
  180   (avcodec_send_packet/avcodec_receive_frame) always work with reference
  181   counted frames.
  182 
  183 2017-09-21 - 6f15f1cdc8 - lavu 55.76.100 / 56.6.0 - pixdesc.h
  184   Add av_color_range_from_name(), av_color_primaries_from_name(),
  185   av_color_transfer_from_name(), av_color_space_from_name(), and
  186   av_chroma_location_from_name().
  187 
  188 2017-09-13 - 82342cead1 - lavc 57.106.100 - avcodec.h
  189   Add AV_PKT_FLAG_TRUSTED.
  190 
  191 2017-09-13 - 9cb23cd9fe - lavu 55.75.100 - hwcontext.h hwcontext_drm.h
  192   Add AV_HWDEVICE_TYPE_DRM and implementation.
  193 
  194 2017-09-08 - 5ba2aef6ec - lavfi 6.103.100 - buffersrc.h
  195   Add av_buffersrc_close().
  196 
  197 2017-09-04 - 6cadbb16e9 - lavc 57.105.100 - avcodec.h
  198   Add AV_HWACCEL_CODEC_CAP_EXPERIMENTAL, replacing the deprecated
  199   HWACCEL_CODEC_CAP_EXPERIMENTAL flag.
  200 
  201 2017-09-01 - 5d76674756 - lavf 57.81.100 - avio.h
  202   Add avio_read_partial().
  203 
  204 2017-09-01 - xxxxxxx - lavf 57.80.100 / 57.11.0 - avio.h
  205   Add avio_context_free(). From now on it must be used for freeing AVIOContext.
  206 
  207 2017-08-08 - 1460408703 - lavu 55.74.100 - pixdesc.h
  208   Add AV_PIX_FMT_FLAG_FLOAT pixel format flag.
  209 
  210 2017-08-08 - 463b81de2b - lavu 55.72.100 - imgutils.h
  211   Add av_image_fill_black().
  212 
  213 2017-08-08 - caa12027ba - lavu 55.71.100 - frame.h
  214   Add av_frame_apply_cropping().
  215 
  216 2017-07-25 - 24de4fddca - lavu 55.69.100 - frame.h
  217   Add AV_FRAME_DATA_ICC_PROFILE side data type.
  218 
  219 2017-06-27 - 70143a3954 - lavc 57.100.100 - avcodec.h
  220   DXVA2 and D3D11 hardware accelerated decoding now supports the new hwaccel API,
  221   which can create the decoder context and allocate hardware frame automatically.
  222   See AVCodecContext.hw_device_ctx and AVCodecContext.hw_frames_ctx. For D3D11,
  223   the new AV_PIX_FMT_D3D11 pixfmt must be used with the new API.
  224 
  225 2017-06-27 - 3303511f33 - lavu 56.67.100 - hwcontext.h
  226   Add AV_HWDEVICE_TYPE_D3D11VA and AV_PIX_FMT_D3D11.
  227 
  228 2017-06-24 - 09891c5391 - lavf 57.75.100 - avio.h
  229   Add AVIO_DATA_MARKER_FLUSH_POINT to signal preferred flush points to aviobuf.
  230 
  231 2017-06-14 - d59c6a3aeb - lavu 55.66.100 - hwcontext.h
  232   av_hwframe_ctx_create_derived() now takes some AV_HWFRAME_MAP_* combination
  233   as its flags argument (which was previously unused).
  234 
  235 2017-06-14 - 49ae8a5e87 - lavc 57.99.100 - avcodec.h
  236   Add AV_HWACCEL_FLAG_ALLOW_PROFILE_MISMATCH.
  237 
  238 2017-06-14 - 0b1794a43e - lavu 55.65.100 - hwcontext.h
  239   Add AV_HWDEVICE_TYPE_NONE, av_hwdevice_find_type_by_name(),
  240   av_hwdevice_get_type_name() and av_hwdevice_iterate_types().
  241 
  242 2017-06-14 - b22172f6f3 - lavu 55.64.100 - hwcontext.h
  243   Add av_hwdevice_ctx_create_derived().
  244 
  245 2017-05-15 - 532b23f079 - lavc 57.96.100 - avcodec.h
  246   VideoToolbox hardware-accelerated decoding now supports the new hwaccel API,
  247   which can create the decoder context and allocate hardware frames automatically.
  248   See AVCodecContext.hw_device_ctx and AVCodecContext.hw_frames_ctx.
  249 
  250 2017-05-15 - 532b23f079 - lavu 57.63.100 - hwcontext.h
  251   Add AV_HWDEVICE_TYPE_VIDEOTOOLBOX and implementation.
  252 
  253 2017-05-08 - f089e02fa2 - lavc 57.95.100 / 57.31.0 - avcodec.h
  254   Add AVCodecContext.apply_cropping to control whether cropping
  255   is handled by libavcodec or the caller.
  256 
  257 2017-05-08 - a47bd5d77e - lavu 55.62.100 / 55.30.0 - frame.h
  258   Add AVFrame.crop_left/right/top/bottom fields for attaching cropping
  259   information to video frames.
  260 
  261 2017-xx-xx - xxxxxxxxxx
  262   Change av_sha_update(), av_sha512_update() and av_md5_sum()/av_md5_update() length
  263   parameter type to size_t at next major bump.
  264 
  265 2017-05-05 - c0f17a905f - lavc 57.94.100 - avcodec.h
  266   The cuvid decoders now support AVCodecContext.hw_device_ctx, which removes
  267   the requirement to set an incomplete AVCodecContext.hw_frames_ctx only to
  268   set the Cuda device handle.
  269 
  270 2017-04-11 - 8378466507 - lavu 55.61.100 - avstring.h
  271   Add av_strireplace().
  272 
  273 2016-04-06 - 157e57a181 - lavc 57.92.100 - avcodec.h
  274   Add AV_PKT_DATA_CONTENT_LIGHT_LEVEL packet side data.
  275 
  276 2016-04-06 - b378f5bd64 - lavu 55.60.100 - mastering_display_metadata.h
  277   Add AV_FRAME_DATA_CONTENT_LIGHT_LEVEL value, av_content_light_metadata_alloc()
  278   and av_content_light_metadata_create_side_data() API, and AVContentLightMetadata
  279   type to export content light level video properties.
  280 
  281 2017-03-31 - 9033e8723c - lavu 55.57.100 - spherical.h
  282   Add av_spherical_projection_name().
  283   Add av_spherical_from_name().
  284 
  285 2017-03-30 - 4cda23f1f1 - lavu 55.53.100 / 55.27.0 - hwcontext.h
  286   Add av_hwframe_map() and associated AV_HWFRAME_MAP_* flags.
  287   Add av_hwframe_ctx_create_derived().
  288 
  289 2017-03-29 - bfdcdd6d82 - lavu 55.52.100 - avutil.h
  290   add av_fourcc_make_string() function and av_fourcc2str() macro to replace
  291   av_get_codec_tag_string() from lavc.
  292 
  293 2017-03-27 - ddef3d902f - lavf 57.68.100 - avformat.h
  294   Deprecate that demuxers export the stream rotation angle in AVStream.metadata
  295   (via an entry named "rotate"). Use av_stream_get_side_data() with
  296   AV_PKT_DATA_DISPLAYMATRIX instead, and read the rotation angle with
  297   av_display_rotation_get(). The same is done for muxing. Instead of adding a
  298   "rotate" entry to AVStream.metadata, AV_PKT_DATA_DISPLAYMATRIX side data has
  299   to be added to the AVStream.
  300 
  301 2017-03-23 - 7e4ba776a2 - lavc 57.85.101 - avcodec.h
  302   vdpau hardware accelerated decoding now supports the new hwaccel API, which
  303   can create the decoder context and allocate hardware frame automatically.
  304   See AVCodecContext.hw_device_ctx and AVCodecContext.hw_frames_ctx.
  305 
  306 2017-03-23 - 156bd8278f - lavc 57.85.100 - avcodec.h
  307   Add AVCodecContext.hwaccel_flags field. This will control some hwaccels at
  308   a later point.
  309 
  310 2017-03-21 - fc9f14c7de - lavf 57.67.100 / 57.08.0 - avio.h
  311   Add AVIO_SEEKABLE_TIME flag.
  312 
  313 2017-03-21 - d682ae70b4 - lavf 57.66.105, lavc 57.83.101 - avformat.h, avcodec.h
  314   Deprecate AVFMT_FLAG_KEEP_SIDE_DATA. It will be ignored after the next major
  315   bump, and libavformat will behave as if it were always set.
  316   Deprecate av_packet_merge_side_data() and av_packet_split_side_data().
  317 
  318 2016-03-20 - 8200b16a9c - lavu 55.50.100 / 55.21.0 - imgutils.h
  319   Add av_image_copy_uc_from(), a version of av_image_copy() for copying
  320   from GPU mapped memory.
  321 
  322 2017-03-20 - 9c2436e - lavu 55.49.100 - pixdesc.h
  323   Add AV_PIX_FMT_FLAG_BAYER pixel format flag.
  324 
  325 2017-03-18 - 3796fb2692 - lavfi 6.77.100 - avfilter.h
  326   Deprecate AVFilterGraph.resample_lavr_opts
  327   It's never been used by avfilter nor passed to anything.
  328 
  329 2017-02-10 - 1b7ffddb3a - lavu 55.48.100 / 55.33.0 - spherical.h
  330   Add AV_SPHERICAL_EQUIRECTANGULAR_TILE, av_spherical_tile_bounds(),
  331   and projection-specific properties (bound_left, bound_top, bound_right,
  332   bound_bottom, padding) to AVSphericalMapping.
  333 
  334 2017-03-02 - ade7c1a232 - lavc 57.81.104 - videotoolbox.h
  335   AVVideotoolboxContext.cv_pix_fmt_type can now be set to 0 to output the
  336   native decoder format. (The default value is not changed.)
  337 
  338 2017-03-02 - 554bc4eea8 - lavu 55.47.101, lavc 57.81.102, lavf 57.66.103
  339   Remove requirement to use AVOption or accessors to access certain fields
  340   in AVFrame, AVCodecContext, and AVFormatContext that were previously
  341   documented as "no direct access" allowed.
  342 
  343 2017-02-13 - c1a5fca06f - lavc 57.80.100 - avcodec.h
  344   Add AVCodecContext.hw_device_ctx.
  345 
  346 2017-02-11 - e3af49b14b - lavu 55.47.100 - frame.h
  347   Add AVFrame.opaque_ref.
  348 
  349 2017-01-31 - 2eab48177d - lavu 55.46.100 / 55.20.0 - cpu.h
  350   Add AV_CPU_FLAG_SSSE3SLOW.
  351 
  352 2017-01-24 - c4618f842a - lavu 55.45.100 - channel_layout.h
  353   Add av_get_extended_channel_layout()
  354 
  355 2017-01-22 - 76c5a69e26 - lavu 55.44.100 - lfg.h
  356   Add av_lfg_init_from_data().
  357 
  358 2017-01-17 - 2a4a8653b6 - lavc 57.74.100 - vaapi.h
  359   Deprecate struct vaapi_context and the vaapi.h installed header.
  360   Callers should set AVCodecContext.hw_frames_ctx instead.
  361 
  362 2017-01-12 - dbe9dbed31 - lavfi 6.69.100 - buffersink.h
  363   Add av_buffersink_get_*() functions.
  364 
  365 2017-01-06 - 9488032e10 - lavf 57.62.100 - avio.h
  366   Add avio_get_dyn_buf()
  367 
  368 2016-12-10 - f542b152aa - lavu 55.43.100 - imgutils.h
  369   Add av_image_check_size2()
  370 
  371 2016-12-07 - e7a6f8c972 - lavc 57.67.100 / 57.29.0 - avcodec.h
  372   Add AV_PKT_DATA_SPHERICAL packet side data to export AVSphericalMapping
  373   information from containers.
  374 
  375 2016-12-07 - 8f58ecc344 - lavu 55.42.100 / 55.30.0 - spherical.h
  376   Add AV_FRAME_DATA_SPHERICAL value, av_spherical_alloc() API and
  377   AVSphericalMapping type to export and describe spherical video properties.
  378 
  379 2016-11-18 - 2ab50647ff - lavf 57.58.100 - avformat.h
  380   Add av_stream_add_side_data().
  381 
  382 2016-11-13 - 775a8477b7 - lavu 55.39.100 - hwcontext_vaapi.h
  383   Add AV_VAAPI_DRIVER_QUIRK_ATTRIB_MEMTYPE.
  384 
  385 2016-11-13 - a8d51bb424 - lavu 55.38.100 - hwcontext_vaapi.h
  386   Add driver quirks field to VAAPI-specific hwdevice and enum with
  387   members AV_VAAPI_DRIVER_QUIRK_* to represent its values.
  388 
  389 2016-11-10 - 638b216d4f - lavu 55.36.100 - pixfmt.h
  390   Add AV_PIX_FMT_GRAY12(LE/BE).
  391 
  392 -------- 8< --------- FFmpeg 3.2 was cut here -------- 8< ---------
  393 
  394 2016-10-24 - 73ead47 - lavf 57.55.100 - avformat.h
  395   Add AV_DISPOSITION_TIMED_THUMBNAILS
  396 
  397 2016-10-24 - a246fef - lavf 57.54.100 - avformat.h
  398   Add avformat_init_output() and AVSTREAM_INIT_IN_ macros
  399 
  400 2016-10-22 - f5495c9 - lavu 55.33.100 - avassert.h
  401   Add av_assert0_fpu() / av_assert2_fpu()
  402 
  403 2016-10-07 - 3f9137c / 32c8359 - lavc 57.61.100 / 57.24.0 - avcodec.h
  404   Decoders now export the frame timestamp as AVFrame.pts. It was
  405   previously exported as AVFrame.pkt_pts, which is now deprecated.
  406 
  407   Note: When decoding, AVFrame.pts uses the stream/packet timebase,
  408   and not the codec timebase.
  409 
  410 2016-09-28 - eba0414 - lavu 55.32.100 / 55.16.0 - hwcontext.h hwcontext_qsv.h
  411   Add AV_HWDEVICE_TYPE_QSV and a new installed header with QSV-specific
  412   hwcontext definitions.
  413 
  414 2016-09-26 - 32c25f0 - lavc 57.59.100 / 57.23.0 - avcodec.h
  415   AVCodecContext.hw_frames_ctx now may be used by decoders.
  416 
  417 2016-09-27 - f0b6f72 - lavf 57.51.100 - avformat.h
  418   Add av_stream_get_codec_timebase()
  419 
  420 2016-09-27 - 23c0779 - lswr 2.2.100 - swresample.h
  421   Add swr_build_matrix().
  422 
  423 2016-09-23 - 30d3e36 - lavc 57.58.100 - avcodec.h
  424   Add AV_CODEC_CAP_AVOID_PROBING codec capability flag.
  425 
  426 2016-09-14 - ae1dd0c - lavf 57.49.100 - avformat.h
  427   Add avformat_transfer_internal_stream_timing_info helper to help with stream
  428   copy.
  429 
  430 2016-08-29 - 4493390 - lavfi 6.58.100 - avfilter.h
  431   Add AVFilterContext.nb_threads.
  432 
  433 2016-08-15 - c3c4c72 - lavc 57.53.100 - avcodec.h
  434   Add trailing_padding to AVCodecContext to match the corresponding
  435   field in AVCodecParameters.
  436 
  437 2016-08-15 - b746ed7 - lavc 57.52.100 - avcodec.h
  438   Add a new API for chained BSF filters and passthrough (null) BSF --
  439   av_bsf_list_alloc(), av_bsf_list_free(), av_bsf_list_append(),
  440   av_bsf_list_append2(), av_bsf_list_finalize(), av_bsf_list_parse_str()
  441   and av_bsf_get_null_filter().
  442 
  443 2016-08-04 - 82a33c8 - lavf 57.46.100 - avformat.h
  444   Add av_get_frame_filename2()
  445 
  446 2016-07-09 - 775389f / 90f469a - lavc 57.50.100 / 57.20.0 - avcodec.h
  447   Add FF_PROFILE_H264_MULTIVIEW_HIGH and FF_PROFILE_H264_STEREO_HIGH.
  448 
  449 2016-06-30 - c1c7e0ab - lavf 57.41.100 - avformat.h
  450   Moved codecpar field from AVStream to the end of the struct, so that
  451   the following private fields are in the same location as in FFmpeg 3.0 (lavf 57.25.100).
  452 
  453 2016-06-30 - 042fb69d - lavu 55.28.100 - frame.h
  454   Moved hw_frames_ctx field from AVFrame to the end of the struct, so that
  455   the following private fields are in the same location as in FFmpeg 3.0 (lavu 55.17.103).
  456 
  457 2016-06-29 - 1a751455 - lavfi 6.47.100 - avfilter.h
  458   Fix accidental ABI breakage in AVFilterContext.
  459   ABI was broken in 8688d3a, lavfi 6.42.100 and released as ffmpeg 3.1.
  460 
  461   Because of this, ffmpeg and ffplay built against lavfi>=6.42.100 will not be
  462   compatible with lavfi>=6.47.100. Potentially also affects other users of
  463   libavfilter if they are using one of the affected fields.
  464 
  465 -------- 8< --------- FFmpeg 3.1 was cut here -------- 8< ---------
  466 
  467 2016-06-26 - 481f320 / 1c9e861 - lavu 55.27.100 / 55.13.0 - hwcontext.h
  468   Add av_hwdevice_ctx_create().
  469 
  470 2016-06-26 - b95534b / e47b8bb - lavc 57.48.101 / 57.19.1 - avcodec.h
  471   Adjust values for JPEG 2000 profiles.
  472 
  473 2016-06-23 - 5d75e46 / db7968b - lavf 57.40.100 / 57.7.0 - avio.h
  474   Add AVIODataMarkerType, write_data_type, ignore_boundary_point and
  475   avio_write_marker.
  476 
  477 2016-06-23 - abb3cc4 / 0c4468d - lavu 55.26.100 / 55.12.0 - opt.h
  478   Add av_stereo3d_type_name() and av_stereo3d_from_name().
  479 
  480 2016-06-22 - 3689efe / c46db38 - lavu 55.25.100 / 55.11.0 - hwcontext_dxva2.h
  481   Add new installed header with DXVA2-specific hwcontext definitions.
  482 
  483 2016-04-27 - fb91871 - lavu 55.23.100 - log.h
  484   Add a new function av_log_format_line2() which returns number of bytes
  485   written to the target buffer.
  486 
  487 2016-04-21 - 7fc329e - lavc 57.37.100 - avcodec.h
  488   Add a new audio/video encoding and decoding API with decoupled input
  489   and output -- avcodec_send_packet(), avcodec_receive_frame(),
  490   avcodec_send_frame() and avcodec_receive_packet().
  491 
  492 2016-04-17 - af9cac1 / 33d1898 - lavc 57.35.100 / 57.15.0 - avcodec.h
  493   Add a new bitstream filtering API working with AVPackets.
  494   Deprecate the old bitstream filtering API.
  495 
  496 2016-04-14 - 8688d3a / 07a844f - lavfi 6.42.100 / 6.3.0 - avfilter.h
  497   Add AVFilterContext.hw_device_ctx.
  498 
  499 2016-04-14 - 28abb21 / 551c677 - lavu 55.22.100 / 55.9.0 - hwcontext_vaapi.h
  500   Add new installed header with VAAPI-specific hwcontext definitions.
  501 
  502 2016-04-14 - afccfaf / b1f01e8 - lavu 55.21.100 / 55.7.0 - hwcontext.h
  503   Add AVHWFramesConstraints and associated API.
  504 
  505 2016-04-11 - 6f69f7a / 9200514 - lavf 57.33.100 / 57.5.0 - avformat.h
  506   Add AVStream.codecpar, deprecate AVStream.codec.
  507 
  508 2016-04-02 - e8a9b64 - lavu 55.20.100 - base64.h
  509   Add AV_BASE64_DECODE_SIZE(x) macro.
  510 
  511 2016-xx-xx - lavc 57.33.100 / 57.14.0 - avcodec.h
  512   f9b1cf1 / 998e1b8 - Add AVCodecParameters and its related API.
  513   e6053b3 / a806834 - Add av_get_audio_frame_duration2().
  514 
  515 2016-03-11 - 6d8ab35 - lavf/lavc 57.28.101
  516   Add requirement to bitstream filtering API that returned packets with
  517   size == 0 and side_data_elems == 0 are to be skipped by the caller.
  518 
  519 2016-03-04 - 9362973 - lavf 57.28.100
  520   Add protocol blacklisting API
  521 
  522 2016-02-28 - 4dd4d53 - lavc 57.27.101
  523   Validate AVFrame returned by get_buffer2 to have required
  524   planes not NULL and unused planes set to NULL as crashes
  525   and buffer overflow are possible with certain streams if
  526   that is not the case.
  527 
  528 2016-02-26 - 30e7685 - lavc 57.27.100 - avcodec.h
  529   "flags2" decoding option now allows the flag "ass_ro_flush_noop" preventing
  530   the reset of the ASS ReadOrder field on flush. This affects the content of
  531   AVSubtitles.rects[N]->ass when "sub_text_format" is set to "ass" (see
  532   previous entry).
  533 
  534 2016-02-26 - 2941282 - lavc 57.26.100 - avcodec.h
  535   Add a "sub_text_format" subtitles decoding option allowing the values "ass"
  536   (recommended) and "ass_with_timings" (not recommended, deprecated, default).
  537   The default value for this option will change to "ass" at the next major
  538   libavcodec version bump.
  539 
  540   The current default is "ass_with_timings" for compatibility. This means that
  541   all subtitles text decoders currently still output ASS with timings printed
  542   as strings in the AVSubtitles.rects[N]->ass fields.
  543 
  544   Setting "sub_text_format" to "ass" allows a better timing accuracy (ASS
  545   timing is limited to a 1/100 time base, so this is relevant for any subtitles
  546   format needing a bigger one), ease timing adjustments, and prevents the need
  547   of removing the timing from the decoded string yourself. This form is also
  548   known as "the Matroska form". The timing information (start time, duration)
  549   can be found in the AVSubtitles fields.
  550 
  551 2016-02-24 - 7e49cdd / 7b3214d0 - lavc 57.25.100 / 57.13.0 - avcodec.h
  552   Add AVCodecContext.hw_frames_ctx.
  553 
  554 2016-02-24 - 1042402 / b3dd30d - lavfi 6.36.100 / 6.2.0 - avfilter.h
  555   avfilter.h - Add AVFilterLink.hw_frames_ctx.
  556   buffersrc.h - Add AVBufferSrcParameters and functions for handling it.
  557 
  558 2016-02-23 - 14f7a3d - lavc 57.25.100
  559   Add AV_PKT_DATA_MPEGTS_STREAM_ID for exporting the MPEGTS stream ID.
  560 
  561 2016-02-18 - 08acab8 - lavu 55.18.100 - audio_fifo.h
  562   Add av_audio_fifo_peek_at().
  563 
  564 2016-xx-xx - lavu 55.18.100 / 55.6.0
  565   26abd51 / 721a4ef buffer.h - Add av_buffer_pool_init2().
  566   1a70878 / 89923e4 hwcontext.h - Add a new installed header hwcontext.h with a new API
  567                         for handling hwaccel frames.
  568   6992276 / ad884d1 hwcontext_cuda.h - Add a new installed header hwcontext_cuda.h with
  569                              CUDA-specific hwcontext definitions.
  570   d779d8d / a001ce3 hwcontext_vdpau.h - Add a new installed header hwcontext_vdpau.h with
  571                               VDPAU-specific hwcontext definitions.
  572   63c3e35 / 7bc780c pixfmt.h - Add AV_PIX_FMT_CUDA.
  573 
  574 -------- 8< --------- FFmpeg 3.0 was cut here -------- 8< ---------
  575 
  576 2016-02-10 - bc9a596 / 9f61abc - lavf 57.25.100 / 57.3.0 - avformat.h
  577   Add AVFormatContext.opaque, io_open and io_close, allowing custom IO
  578 
  579 2016-02-01 - 1dba837 - lavf 57.24.100 - avformat.h, avio.h
  580   Add protocol_whitelist to AVFormatContext, AVIOContext
  581 
  582 2016-01-31 - 66e9d2f - lavu 55.17.100 - frame.h
  583   Add AV_FRAME_DATA_GOP_TIMECODE for exporting MPEG1/2 GOP timecodes.
  584 
  585 2016-01-01 - 5e8b053 / 2c68113 - lavc 57.21.100 / 57.12.0 - avcodec.h
  586   Add AVCodecDescriptor.profiles and avcodec_profile_name().
  587 
  588 2015-12-28 - 1f9139b - lavf 57.21.100 - avformat.h
  589   Add automatic bitstream filtering; add av_apply_bitstream_filters()
  590 
  591 2015-12-22 - 39a09e9 - lavfi 6.21.101 - avfilter.h
  592   Deprecate avfilter_link_set_closed().
  593   Applications are not supposed to mess with links,
  594   they should close the sinks.
  595 
  596 2015-12-17 - lavc 57.18.100 / 57.11.0 - avcodec.h dirac.h
  597   xxxxxxx - Add av_packet_add_side_data().
  598   xxxxxxx - Add AVCodecContext.coded_side_data.
  599   xxxxxxx - Add AVCPBProperties API.
  600   xxxxxxx - Add a new public header dirac.h containing
  601             av_dirac_parse_sequence_header()
  602 
  603 2015-12-11 - 676a93f - lavf 57.20.100 - avformat.h
  604   Add av_program_add_stream_index()
  605 
  606 2015-11-29 - 93fb4a4 - lavc 57.16.101 - avcodec.h
  607   Deprecate rtp_callback without replacement, i.e. it won't be possible to
  608   get image slices before the full frame is encoded any more. The libavformat
  609   rtpenc muxer can still be used for RFC-2190 packetization.
  610 
  611 2015-11-22 - fe20e34 - lavc 57.16.100 - avcodec.h
  612   Add AV_PKT_DATA_FALLBACK_TRACK for making fallback associations between
  613   streams.
  614 
  615 2015-11-22 - ad317c9 - lavf 57.19.100 - avformat.h
  616   Add av_stream_new_side_data().
  617 
  618 2015-11-22 - e12f403 - lavu 55.8.100 - xtea.h
  619     Add av_xtea_le_init and av_xtea_le_crypt
  620 
  621 2015-11-18 - lavu 55.7.100 - mem.h
  622   Add av_fast_mallocz()
  623 
  624 2015-10-29 - lavc 57.12.100 / 57.8.0 - avcodec.h
  625   xxxxxx - Deprecate av_free_packet(). Use av_packet_unref() as replacement,
  626            it resets the packet in a more consistent way.
  627   xxxxxx - Deprecate av_dup_packet(), it is a no-op for most cases.
  628            Use av_packet_ref() to make a non-refcounted AVPacket refcounted.
  629   xxxxxx - Add av_packet_alloc(), av_packet_clone(), av_packet_free().
  630            They match the AVFrame functions with the same name.
  631 
  632 2015-10-27 - 1e477a9 - lavu 55.5.100 - cpu.h
  633   Add AV_CPU_FLAG_AESNI.
  634 
  635 2015-10-22 - ee573b4 / a17a766 - lavc 57.9.100 / 57.5.0 - avcodec.h
  636   Add data and linesize array to AVSubtitleRect, to be used instead of
  637   the ones from the embedded AVPicture.
  638 
  639 2015-10-22 - 866a417 / dc923bc - lavc 57.8.100 / 57.0.0 - qsv.h
  640   Add an API for allocating opaque surfaces.
  641 
  642 2015-10-15 - 2c2d162 - lavf 57.4.100
  643   Remove the latm demuxer that was a duplicate of the loas demuxer.
  644 
  645 2015-10-14 - b994788 / 11c5f43 - lavu 55.4.100 / 55.2.0 - dict.h
  646   Change return type of av_dict_copy() from void to int, so that a proper
  647   error code can be reported.
  648 
  649 2015-09-29 - b01891a / 948f3c1 - lavc 57.3.100 / 57.2.0 - avcodec.h
  650   Change type of AVPacket.duration from int to int64_t.
  651 
  652 2015-09-17 - 7c46f24 / e3d4784 - lavc 57.3.100 / 57.2.0 - d3d11va.h
  653   Add av_d3d11va_alloc_context(). This function must from now on be used for
  654   allocating AVD3D11VAContext.
  655 
  656 2015-09-15 - lavf 57.2.100 - avformat.h
  657   probesize and max_analyze_duration switched to 64bit, both
  658   are only accessible through AVOptions
  659 
  660 2015-09-15 - lavf 57.1.100 - avformat.h
  661   bit_rate was changed to 64bit, make sure you update any
  662   printf() or other type sensitive code
  663 
  664 2015-09-15 - lavc 57.2.100 - avcodec.h
  665   bit_rate/rc_max_rate/rc_min_rate were changed to 64bit, make sure you update
  666   any printf() or other type sensitive code
  667 
  668 2015-09-07 - lavu 55.0.100 / 55.0.0
  669   c734b34 / b8b5d82 - Change type of AVPixFmtDescriptor.flags from uint8_t to uint64_t.
  670   f53569a / 6b3ef7f - Change type of AVComponentDescriptor fields from uint16_t to int
  671             and drop bit packing.
  672   151aa2e / 2268db2 - Add step, offset, and depth to AVComponentDescriptor to replace
  673             the deprecated step_minus1, offset_plus1, and depth_minus1.
  674 
  675 -------- 8< --------- FFmpeg 2.8 was cut here -------- 8< ---------
  676 
  677 2015-08-27 - 1dd854e1 - lavc 56.58.100 - vaapi.h
  678   Deprecate old VA-API context (vaapi_context) fields that were only
  679   set and used by libavcodec. They are all managed internally now.
  680 
  681 2015-08-19 - 9f8e57ef - lavu 54.31.100 - pixfmt.h
  682   Add a unique pixel format for VA-API (AV_PIX_FMT_VAAPI) that
  683   indicates the nature of the underlying storage: a VA surface. This
  684   yields the same value as AV_PIX_FMT_VAAPI_VLD.
  685   Deprecate old VA-API related pixel formats: AV_PIX_FMT_VAAPI_MOCO,
  686   AV_PIX_FMT_VAAPI_IDCT, AV_PIX_FMT_VAAPI_VLD.
  687 
  688 2015-08-02 - lavu 54.30.100 / 54.17.0
  689   9ed59f1 / 7a7df34c -  Add av_blowfish_alloc().
  690   a130ec9 / ae365453 -  Add av_rc4_alloc().
  691   9ca1997 / 5d8bea3b -  Add av_xtea_alloc().
  692   3cf08e9 / d9e8b47e -  Add av_des_alloc().
  693 
  694 2015-07-27 - lavc 56.56.100 / 56.35.0 - avcodec.h
  695   94d68a4 / 7c6eb0a1 - Rename CODEC_FLAG* defines to AV_CODEC_FLAG*.
  696   444e987 / def97856 - Rename CODEC_CAP_* defines to AV_CODEC_CAP_*.
  697   29d147c / 059a9348 - Rename FF_INPUT_BUFFER_PADDING_SIZE and FF_MIN_BUFFER_SIZE
  698               to AV_INPUT_BUFFER_PADDING_SIZE and AV_INPUT_BUFFER_MIN_SIZE.
  699 
  700 2015-07-22 - c40ecff - lavc 56.51.100 - avcodec.h
  701   Add AV_PKT_DATA_QUALITY_STATS to export the quality value, PSNR, and pict_type
  702   of an AVPacket.
  703 
  704 2015-07-16 - 8dad213 - lavc 56.49.100
  705   Add av_codec_get_codec_properties(), FF_CODEC_PROPERTY_LOSSLESS
  706   and FF_CODEC_PROPERTY_CLOSED_CAPTIONS
  707 
  708 2015-07-03 - d563e13 / 83212943 - lavu 54.28.100 / 56.15.0
  709   Add av_version_info().
  710 
  711 -------- 8< --------- FFmpeg 2.7 was cut here -------- 8< ---------
  712 
  713 2015-06-04 - cc17b43 - lswr  1.2.100
  714   Add swr_get_out_samples()
  715 
  716 2015-05-27 - c312bfa - lavu 54.26.100 - cpu.h
  717   Add AV_CPU_FLAG_AVXSLOW.
  718 
  719 2015-05-26 - 1fb9b2a - lavu 54.25.100 - rational.h
  720   Add av_q2intfloat().
  721 
  722 2015-05-13 - cc48409 / e7c5e17 - lavc 56.39.100 / 56.23.0
  723   Add av_vda_default_init2.
  724 
  725 2015-05-11 - 541d75f - lavf 56.33.100 - avformat.h
  726   Add AVOpenCallback AVFormatContext.open_cb
  727 
  728 2015-05-07 - a7dd933 - 56.38.100 - avcodec.h
  729   Add av_packet_side_data_name().
  730 
  731 2015-05-07 - 01e59d4 - 56.37.102 - avcodec.h
  732   Add FF_PROFILE_VP9_2 and FF_PROFILE_VP9_3.
  733 
  734 2015-05-04 - 079b7f6 - 56.37.100 - avcodec.h
  735   Add FF_PROFILE_VP9_0 and FF_PROFILE_VP9_1.
  736 
  737 2015-04-22 - 748d481 - lavf 56.31.100 - avformat.h
  738   Add AVFMT_FLAG_FAST_SEEK flag. Some formats (initially mp3) use it to enable
  739   fast, but inaccurate seeking.
  740 
  741 2015-04-20 - 8e8219e / c253340 - lavu 54.23.100 / 54.12.0 - log.h
  742   Add AV_LOG_TRACE for extremely verbose debugging.
  743 
  744 2015-04-02 - 26e0e393 - lavf 56.29.100 - avio.h
  745   Add AVIODirEntryType.AVIO_ENTRY_SERVER.
  746   Add AVIODirEntryType.AVIO_ENTRY_SHARE.
  747   Add AVIODirEntryType.AVIO_ENTRY_WORKGROUP.
  748 
  749 2015-03-31 - 3188696 - lavu 54.22.100 - avstring.h
  750   Add av_append_path_component()
  751 
  752 2015-03-27 - 184084c - lavf 56.27.100 - avio.h url.h
  753   New directory listing API.
  754 
  755   Add AVIODirEntryType enum.
  756   Add AVIODirEntry, AVIODirContext structures.
  757   Add avio_open_dir(), avio_read_dir(), avio_close_dir(), avio_free_directory_entry().
  758   Add ff_alloc_dir_entry().
  759   Extend URLProtocol with url_open_dir(), url_read_dir(), url_close_dir().
  760 
  761 2015-03-29 - 268ff17 / c484561 - lavu 54.21.100 / 54.10.0 - pixfmt.h
  762   Add AV_PIX_FMT_MMAL for MMAL hardware acceleration.
  763 
  764 2015-03-19 - 11fe56c - 56.29.100 / lavc 56.22.0
  765   Add FF_PROFILE_DTS_EXPRESS.
  766 
  767 -------- 8< --------- FFmpeg 2.6 was cut here -------- 8< ---------
  768 
  769 2015-03-04 - cca4476 - lavf 56.25.100
  770   Add avformat_flush()
  771 
  772 2015-03-03 - 81a9126 - lavf 56.24.100
  773   Add avio_put_str16be()
  774 
  775 2015-02-19 - 560eb71 / 31d2039 - lavc 56.23.100 / 56.13.0
  776   Add width, height, coded_width, coded_height and format to
  777   AVCodecParserContext.
  778 
  779 2015-02-19 - e375511 / 5b1d9ce - lavu 54.19.100 / 54.9.0
  780   Add AV_PIX_FMT_QSV for QSV hardware acceleration.
  781 
  782 2015-02-14 - ba22295 - lavc 56.21.102
  783   Deprecate VIMA decoder.
  784 
  785 2015-01-27 - 62a82c6 / 728685f - lavc 56.21.100 / 56.12.0, lavu 54.18.100 / 54.8.0 - avcodec.h, frame.h
  786   Add AV_PKT_DATA_AUDIO_SERVICE_TYPE and AV_FRAME_DATA_AUDIO_SERVICE_TYPE for
  787   storing the audio service type as side data.
  788 
  789 2015-01-16 - a47c933 - lavf 56.19.100 - avformat.h
  790   Add data_codec and data_codec_id for storing codec of data stream
  791 
  792 2015-01-11 - 007c33d - lavd 56.4.100 - avdevice.h
  793   Add avdevice_list_input_sources().
  794   Add avdevice_list_output_sinks().
  795 
  796 2014-12-25 - d7aaeea / c220a60 - lavc 56.19.100 / 56.10.0 - vdpau.h
  797   Add av_vdpau_get_surface_parameters().
  798 
  799 2014-12-25 - ddb9a24 / 6c99c92 - lavc 56.18.100 / 56.9.0 - avcodec.h
  800   Add AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH flag to av_vdpau_bind_context().
  801 
  802 2014-12-25 - d16079a / 57b6704 - lavc 56.17.100 / 56.8.0 - avcodec.h
  803   Add AVCodecContext.sw_pix_fmt.
  804 
  805 2014-12-04 - 6e9ac02 - lavc 56.14.100 - dv_profile.h
  806   Add av_dv_codec_profile2().
  807 
  808 -------- 8< --------- FFmpeg 2.5 was cut here -------- 8< ---------
  809 
  810 2014-11-21 - ab922f9 - lavu 54.15.100 - dict.h
  811    Add av_dict_get_string().
  812 
  813 2014-11-18 - a54a51c - lavu 54.14.100 - float_dsp.h
  814   Add avpriv_float_dsp_alloc().
  815 
  816 2014-11-16 - 6690d4c3 - lavf 56.13.100 - avformat.h
  817   Add AVStream.recommended_encoder_configuration with accessors.
  818 
  819 2014-11-16 - bee5844d - lavu 54.13.100 - opt.h
  820   Add av_opt_serialize().
  821 
  822 2014-11-16 - eec69332 - lavu 54.12.100 - opt.h
  823   Add av_opt_is_set_to_default().
  824 
  825 2014-11-06 - 44fa267 / 5e80fb7 - lavc 56.11.100 / 56.6.0 - vorbis_parser.h
  826   Add a public API for parsing vorbis packets.
  827 
  828 2014-10-15 - 17085a0 / 7ea1b34 - lavc 56.7.100 / 56.5.0 - avcodec.h
  829   Replace AVCodecContext.time_base used for decoding
  830   with AVCodecContext.framerate.
  831 
  832 2014-10-15 - 51c810e / d565fef1 - lavc 56.6.100 / 56.4.0 - avcodec.h
  833   Add AV_HWACCEL_FLAG_IGNORE_LEVEL flag to av_vdpau_bind_context().
  834 
  835 2014-10-13 - da21895 / 2df0c32e - lavc 56.5.100 / 56.3.0 - avcodec.h
  836   Add AVCodecContext.initial_padding. Deprecate the use of AVCodecContext.delay
  837   for audio encoding.
  838 
  839 2014-10-08 - bb44f7d / 5a419b2 - lavu 54.10.100 / 54.4.0 - pixdesc.h
  840   Add API to return the name of frame and context color properties.
  841 
  842 2014-10-06 - a61899a / e3e158e - lavc 56.3.100 / 56.2.0 - vdpau.h
  843   Add av_vdpau_bind_context(). This function should now be used for creating
  844   (or resetting) a AVVDPAUContext instead of av_vdpau_alloc_context().
  845 
  846 2014-10-02 - cdd6f05 - lavc 56.2.100 - avcodec.h
  847 2014-10-02 - cdd6f05 - lavu 54.9.100 - frame.h
  848   Add AV_FRAME_DATA_SKIP_SAMPLES. Add lavc CODEC_FLAG2_SKIP_MANUAL and
  849   AVOption "skip_manual", which makes lavc export skip information via
  850   AV_FRAME_DATA_SKIP_SAMPLES AVFrame side data, instead of skipping and
  851   discarding samples automatically.
  852 
  853 2014-10-02 - 0d92b0d - lavu 54.8.100 - avstring.h
  854   Add av_match_list()
  855 
  856 2014-09-24 - ac68295 - libpostproc 53.1.100
  857   Add visualization support
  858 
  859 2014-09-19 - 6edd6a4 - lavc 56.1.101 - dv_profile.h
  860   deprecate avpriv_dv_frame_profile2(), which was made public by accident.
  861 
  862 
  863 -------- 8< --------- FFmpeg 2.4 was cut here -------- 8< ---------
  864 
  865 2014-08-25 - 215db29 / b263f8f - lavf 56.3.100 / 56.3.0 - avformat.h
  866   Add AVFormatContext.max_ts_probe.
  867 
  868 2014-08-28 - f30a815 / 9301486 - lavc 56.1.100 / 56.1.0 - avcodec.h
  869   Add AV_PKT_DATA_STEREO3D to export container-level stereo3d information.
  870 
  871 2014-08-23 - 8fc9bd0 - lavu 54.7.100 - dict.h
  872   AV_DICT_DONT_STRDUP_KEY and AV_DICT_DONT_STRDUP_VAL arguments are now
  873   freed even on error. This is consistent with the behaviour all users
  874   of it we could find expect.
  875 
  876 2014-08-21 - 980a5b0 - lavu 54.6.100 - frame.h motion_vector.h
  877   Add AV_FRAME_DATA_MOTION_VECTORS side data and AVMotionVector structure
  878 
  879 2014-08-16 - b7d5e01 - lswr 1.1.100 - swresample.h
  880   Add AVFrame based API
  881 
  882 2014-08-16 - c2829dc - lavu 54.4.100 - dict.h
  883   Add av_dict_set_int helper function.
  884 
  885 2014-08-13 - c8571c6 / 8ddc326 - lavu 54.3.100 / 54.3.0 - mem.h
  886   Add av_strndup().
  887 
  888 2014-08-13 - 2ba4577 / a8c104a - lavu 54.2.100 / 54.2.0 - opt.h
  889   Add av_opt_get_dict_val/set_dict_val with AV_OPT_TYPE_DICT to support
  890   dictionary types being set as options.
  891 
  892 2014-08-13 - afbd4b7e09 - lavf 56.01.0 - avformat.h
  893   Add AVFormatContext.event_flags and AVStream.event_flags for signaling to
  894   the user when events happen in the file/stream.
  895 
  896 2014-08-10 - 78eaaa8 / fb1ddcd - lavr 2.1.0 - avresample.h
  897   Add avresample_convert_frame() and avresample_config().
  898 
  899 2014-08-10 - 78eaaa8 / fb1ddcd - lavu 54.1.100 / 54.1.0 - error.h
  900   Add AVERROR_INPUT_CHANGED and AVERROR_OUTPUT_CHANGED.
  901 
  902 2014-08-08 - 3841f2a / d35b94f - lavc 55.73.102 / 55.57.4 - avcodec.h
  903   Deprecate FF_IDCT_XVIDMMX define and xvidmmx idct option.
  904   Replaced by FF_IDCT_XVID and xvid respectively.
  905 
  906 2014-08-08 - 5c3c671 - lavf 55.53.100 - avio.h
  907   Add avio_feof() and deprecate url_feof().
  908 
  909 2014-08-07 - bb789016d4 - lsws 2.1.3 - swscale.h
  910   sws_getContext is not going to be removed in the future.
  911 
  912 2014-08-07 - a561662 / ad1ee5f - lavc 55.73.101 / 55.57.3 - avcodec.h
  913   reordered_opaque is not going to be removed in the future.
  914 
  915 2014-08-02 - 28a2107 - lavu 52.98.100 - pixelutils.h
  916   Add pixelutils API with SAD functions
  917 
  918 2014-08-04 - 6017c98 / e9abafc - lavu 52.97.100 / 53.22.0 - pixfmt.h
  919   Add AV_PIX_FMT_YA16 pixel format for 16 bit packed gray with alpha.
  920 
  921 2014-08-04 - 4c8bc6f / e96c3b8 - lavu 52.96.101 / 53.21.1 - avstring.h
  922   Rename AV_PIX_FMT_Y400A to AV_PIX_FMT_YA8 to better identify the format.
  923   An alias pixel format and color space name are provided for compatibility.
  924 
  925 2014-08-04 - 073c074 / d2962e9 - lavu 52.96.100 / 53.21.0 - pixdesc.h
  926   Support name aliases for pixel formats.
  927 
  928 2014-08-03 - 71d008e / 1ef9e83 - lavc 55.72.101 / 55.57.2 - avcodec.h
  929 2014-08-03 - 71d008e / 1ef9e83 - lavu 52.95.100 / 53.20.0 - frame.h
  930   Deprecate AVCodecContext.dtg_active_format and use side-data instead.
  931 
  932 2014-08-03 - e680c73 - lavc 55.72.100 - avcodec.h
  933   Add get_pixels() to AVDCT
  934 
  935 2014-08-03 - 9400603 / 9f17685 - lavc 55.71.101 / 55.57.1 - avcodec.h
  936   Deprecate unused FF_IDCT_IPP define and ipp avcodec option.
  937   Deprecate unused FF_DEBUG_PTS define and pts avcodec option.
  938   Deprecate unused FF_CODER_TYPE_DEFLATE define and deflate avcodec option.
  939   Deprecate unused FF_DCT_INT define and int avcodec option.
  940   Deprecate unused avcodec option scenechange_factor.
  941 
  942 2014-07-30 - ba3e331 - lavu 52.94.100 - frame.h
  943   Add av_frame_side_data_name()
  944 
  945 2014-07-29 - 80a3a66 / 3a19405 - lavf 56.01.100 / 56.01.0 - avformat.h
  946   Add mime_type field to AVProbeData, which now MUST be initialized in
  947   order to avoid uninitialized reads of the mime_type pointer, likely
  948   leading to crashes.
  949   Typically, this means you will do 'AVProbeData pd = { 0 };' instead of
  950   'AVProbeData pd;'.
  951 
  952 2014-07-29 - 31e0b5d / 69e7336 - lavu 52.92.100 / 53.19.0 - avstring.h
  953   Make name matching function from lavf public as av_match_name().
  954 
  955 2014-07-28 - 2e5c8b0 / c5fca01 - lavc 55.71.100 / 55.57.0 - avcodec.h
  956   Add AV_CODEC_PROP_REORDER to mark codecs supporting frame reordering.
  957 
  958 2014-07-27 - ff9a154 - lavf 55.50.100 - avformat.h
  959   New field int64_t probesize2 instead of deprecated
  960   field int probesize.
  961 
  962 2014-07-27 - 932ff70 - lavc 55.70.100 - avdct.h
  963   Add AVDCT / avcodec_dct_alloc() / avcodec_dct_init().
  964 
  965 2014-07-23 - 8a4c086 - lavf 55.49.100 - avio.h
  966   Add avio_read_to_bprint()
  967 
  968 
  969 -------- 8< --------- FFmpeg 2.3 was cut here -------- 8< ---------
  970 
  971 2014-07-14 - 62227a7 - lavf 55.47.100 - avformat.h
  972   Add av_stream_get_parser()
  973 
  974 2014-07-09 - c67690f / a54f03b - lavu 52.92.100 / 53.18.0 - display.h
  975   Add av_display_matrix_flip() to flip the transformation matrix.
  976 
  977 2014-07-09 - 1b58f13 / f6ee61f - lavc 55.69.100 / 55.56.0 - dv_profile.h
  978   Add a public API for DV profile handling.
  979 
  980 2014-06-20 - 0dceefc / 9e500ef - lavu 52.90.100 / 53.17.0 - imgutils.h
  981   Add av_image_check_sar().
  982 
  983 2014-06-20 - 4a99333 / 874390e - lavc 55.68.100 / 55.55.0 - avcodec.h
  984   Add av_packet_rescale_ts() to simplify timestamp conversion.
  985 
  986 2014-06-18 - ac293b6 / 194be1f - lavf 55.44.100 / 55.20.0 - avformat.h
  987   The proper way for providing a hint about the desired timebase to the muxers
  988   is now setting AVStream.time_base, instead of AVStream.codec.time_base as was
  989   done previously. The old method is now deprecated.
  990 
  991 2014-06-11 - 67d29da - lavc 55.66.101 - avcodec.h
  992   Increase FF_INPUT_BUFFER_PADDING_SIZE to 32 due to some corner cases needing
  993   it
  994 
  995 2014-06-10 - 5482780 - lavf 55.43.100 - avformat.h
  996   New field int64_t max_analyze_duration2 instead of deprecated
  997   int max_analyze_duration.
  998 
  999 2014-05-30 - 00759d7 - lavu 52.89.100 - opt.h
 1000   Add av_opt_copy()
 1001 
 1002 2014-06-01 - 03bb99a / 0957b27 - lavc 55.66.100 / 55.54.0 - avcodec.h
 1003   Add AVCodecContext.side_data_only_packets to allow encoders to output packets
 1004   with only side data. This option may become mandatory in the future, so all
 1005   users are recommended to update their code and enable this option.
 1006 
 1007 2014-06-01 - 6e8e9f1 / 8c02adc - lavu 52.88.100 / 53.16.0 - frame.h, pixfmt.h
 1008   Move all color-related enums (AVColorPrimaries, AVColorSpace, AVColorRange,
 1009   AVColorTransferCharacteristic, and AVChromaLocation) inside lavu.
 1010   And add AVFrame fields for them.
 1011 
 1012 2014-05-29 - bdb2e80 / b2d4565 - lavr 1.3.0 - avresample.h
 1013   Add avresample_max_output_samples
 1014 
 1015 2014-05-28 - d858ee7 / 6d21259 - lavf 55.42.100 / 55.19.0 - avformat.h
 1016   Add strict_std_compliance and related AVOptions to support experimental
 1017   muxing.
 1018 
 1019 2014-05-26 - 55cc60c - lavu 52.87.100 - threadmessage.h
 1020   Add thread message queue API.
 1021 
 1022 2014-05-26 - c37d179 - lavf 55.41.100 - avformat.h
 1023   Add format_probesize to AVFormatContext.
 1024 
 1025 2014-05-20 - 7d25af1 / c23c96b - lavf 55.39.100 / 55.18.0 - avformat.h
 1026   Add av_stream_get_side_data() to access stream-level side data
 1027   in the same way as av_packet_get_side_data().
 1028 
 1029 2014-05-20 - 7336e39 - lavu 52.86.100 - fifo.h
 1030   Add av_fifo_alloc_array() function.
 1031 
 1032 2014-05-19 - ef1d4ee / bddd8cb - lavu 52.85.100 / 53.15.0 - frame.h, display.h
 1033   Add AV_FRAME_DATA_DISPLAYMATRIX for exporting frame-level
 1034   spatial rendering on video frames for proper display.
 1035 
 1036 2014-05-19 - ef1d4ee / bddd8cb - lavc 55.64.100 / 55.53.0 - avcodec.h
 1037   Add AV_PKT_DATA_DISPLAYMATRIX for exporting packet-level
 1038   spatial rendering on video frames for proper display.
 1039 
 1040 2014-05-19 - 999a99c / a312f71 - lavf 55.38.101 / 55.17.1 - avformat.h
 1041   Deprecate AVStream.pts and the AVFrac struct, which was its only use case.
 1042   See use av_stream_get_end_pts()
 1043 
 1044 2014-05-18 - 68c0518 / fd05602 - lavc 55.63.100 / 55.52.0 - avcodec.h
 1045   Add avcodec_free_context(). From now on it should be used for freeing
 1046   AVCodecContext.
 1047 
 1048 2014-05-17 - 0eec06e / 1bd0bdc - lavu 52.84.100 / 54.5.0 - time.h
 1049   Add av_gettime_relative() av_gettime_relative_is_monotonic()
 1050 
 1051 2014-05-15 - eacf7d6 / 0c1959b - lavf 55.38.100 / 55.17.0 - avformat.h
 1052   Add AVFMT_FLAG_BITEXACT flag. Muxers now use it instead of checking
 1053   CODEC_FLAG_BITEXACT on the first stream.
 1054 
 1055 2014-05-15 - 96cb4c8 - lswr 0.19.100 - swresample.h
 1056   Add swr_close()
 1057 
 1058 2014-05-11 - 14aef38 / 66e6c8a - lavu 52.83.100 / 53.14.0 - pixfmt.h
 1059   Add AV_PIX_FMT_VDA for new-style VDA acceleration.
 1060 
 1061 2014-05-07 - 351f611 - lavu 52.82.100 - fifo.h
 1062   Add av_fifo_freep() function.
 1063 
 1064 2014-05-02 - ba52fb11 - lavu 52.81.100 - opt.h
 1065   Add av_opt_set_dict2() function.
 1066 
 1067 2014-05-01 - e77b985 / a2941c8 - lavc 55.60.103 / 55.50.3 - avcodec.h
 1068   Deprecate CODEC_FLAG_MV0. It is replaced by the flag "mv0" in the
 1069   "mpv_flags" private option of the mpegvideo encoders.
 1070 
 1071 2014-05-01 - e40ae8c / 6484149 - lavc 55.60.102 / 55.50.2 - avcodec.h
 1072   Deprecate CODEC_FLAG_GMC. It is replaced by the "gmc" private option of the
 1073   libxvid encoder.
 1074 
 1075 2014-05-01 - 1851643 / b2c3171 - lavc 55.60.101 / 55.50.1 - avcodec.h
 1076   Deprecate CODEC_FLAG_NORMALIZE_AQP. It is replaced by the flag "naq" in the
 1077   "mpv_flags" private option of the mpegvideo encoders.
 1078 
 1079 2014-05-01 - cac07d0 / 5fcceda - avcodec.h
 1080   Deprecate CODEC_FLAG_INPUT_PRESERVED. Its functionality is replaced by passing
 1081   reference-counted frames to encoders.
 1082 
 1083 2014-04-30 - 617e866 - lavu 52.81.100 - pixdesc.h
 1084   Add av_find_best_pix_fmt_of_2(), av_get_pix_fmt_loss()
 1085   Deprecate avcodec_get_pix_fmt_loss(), avcodec_find_best_pix_fmt_of_2()
 1086 
 1087 2014-04-29 - 1bf6396 - lavc 55.60.100 - avcodec.h
 1088   Add AVCodecDescriptor.mime_types field.
 1089 
 1090 2014-04-29 - b804eb4 - lavu 52.80.100 - hash.h
 1091   Add av_hash_final_bin(), av_hash_final_hex() and av_hash_final_b64().
 1092 
 1093 2014-03-07 - 8b2a130 - lavc 55.50.0 / 55.53.100 - dxva2.h
 1094   Add FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO for old Intel GPUs.
 1095 
 1096 2014-04-22 - 502512e /dac7e8a - lavu 53.13.0 / 52.78.100 - avutil.h
 1097   Add av_get_time_base_q().
 1098 
 1099 2014-04-17 - a8d01a7 / 0983d48 - lavu 53.12.0 / 52.77.100 - crc.h
 1100   Add AV_CRC_16_ANSI_LE crc variant.
 1101 
 1102 2014-04-15 - ef818d8 - lavf 55.37.101 - avformat.h
 1103   Add av_format_inject_global_side_data()
 1104 
 1105 2014-04-12 - 4f698be - lavu 52.76.100 - log.h
 1106   Add av_log_get_flags()
 1107 
 1108 2014-04-11 - 6db42a2b - lavd 55.12.100 - avdevice.h
 1109   Add avdevice_capabilities_create() function.
 1110   Add avdevice_capabilities_free() function.
 1111 
 1112 2014-04-07 - 0a1cc04 / 8b17243 - lavu 52.75.100 / 53.11.0 - pixfmt.h
 1113   Add AV_PIX_FMT_YVYU422 pixel format.
 1114 
 1115 2014-04-04 - c1d0536 / 8542f9c - lavu 52.74.100 / 53.10.0 - replaygain.h
 1116   Full scale for peak values is now 100000 (instead of UINT32_MAX) and values
 1117   may overflow.
 1118 
 1119 2014-04-03 - c16e006 / 7763118 - lavu 52.73.100 / 53.9.0 - log.h
 1120   Add AV_LOG(c) macro to have 256 color debug messages.
 1121 
 1122 2014-04-03 - eaed4da9 - lavu 52.72.100 - opt.h
 1123   Add AV_OPT_MULTI_COMPONENT_RANGE define to allow return
 1124   multi-component option ranges.
 1125 
 1126 2014-03-29 - cd50a44b - lavu 52.70.100 - mem.h
 1127   Add av_dynarray_add_nofree() function.
 1128 
 1129 2014-02-24 - 3e1f241 / d161ae0 - lavu 52.69.100 / 53.8.0 - frame.h
 1130   Add av_frame_remove_side_data() for removing a single side data
 1131   instance from a frame.
 1132 
 1133 2014-03-24 - 83e8978 / 5a7e35d - lavu 52.68.100 / 53.7.0 - frame.h, replaygain.h
 1134   Add AV_FRAME_DATA_REPLAYGAIN for exporting replaygain tags.
 1135   Add a new header replaygain.h with the AVReplayGain struct.
 1136 
 1137 2014-03-24 - 83e8978 / 5a7e35d - lavc 55.54.100 / 55.36.0 - avcodec.h
 1138   Add AV_PKT_DATA_REPLAYGAIN for exporting replaygain tags.
 1139 
 1140 2014-03-24 - 595ba3b / 25b3258 - lavf 55.35.100 / 55.13.0 - avformat.h
 1141   Add AVStream.side_data and AVStream.nb_side_data for exporting stream-global
 1142   side data (e.g. replaygain tags, video rotation)
 1143 
 1144 2014-03-24 - bd34e26 / 0e2c3ee - lavc 55.53.100 / 55.35.0 - avcodec.h
 1145   Give the name AVPacketSideData to the previously anonymous struct used for
 1146   AVPacket.side_data.
 1147 
 1148 
 1149 -------- 8< --------- FFmpeg 2.2 was cut here -------- 8< ---------
 1150 
 1151 2014-03-18 - 37c07d4 - lsws 2.5.102
 1152   Make gray16 full-scale.
 1153 
 1154 2014-03-16 - 6b1ca17 / 1481d24 - lavu 52.67.100 / 53.6.0 - pixfmt.h
 1155   Add RGBA64_LIBAV pixel format and variants for compatibility
 1156 
 1157 2014-03-11 - 3f3229c - lavf 55.34.101 - avformat.h
 1158   Set AVFormatContext.start_time_realtime when demuxing.
 1159 
 1160 2014-03-03 - 06fed440 - lavd 55.11.100 - avdevice.h
 1161   Add av_input_audio_device_next().
 1162   Add av_input_video_device_next().
 1163   Add av_output_audio_device_next().
 1164   Add av_output_video_device_next().
 1165 
 1166 2014-02-24 - fff5262 / 1155fd0 - lavu 52.66.100 / 53.5.0 - frame.h
 1167   Add av_frame_copy() for copying the frame data.
 1168 
 1169 2014-02-24 - a66be60 - lswr 0.18.100 - swresample.h
 1170   Add swr_is_initialized() for checking whether a resample context is initialized.
 1171 
 1172 2014-02-22 - 5367c0b / 7e86c27 - lavr 1.2.0 - avresample.h
 1173   Add avresample_is_open() for checking whether a resample context is open.
 1174 
 1175 2014-02-19 - 6a24d77 / c3ecd96 - lavu 52.65.100 / 53.4.0  - opt.h
 1176   Add AV_OPT_FLAG_EXPORT and AV_OPT_FLAG_READONLY to mark options meant (only)
 1177   for reading.
 1178 
 1179 2014-02-19 - f4c8d00 / 6bb8720 - lavu 52.64.101 / 53.3.1 - opt.h
 1180   Deprecate unused AV_OPT_FLAG_METADATA.
 1181 
 1182 2014-02-16 - 81c3f81 - lavd 55.10.100 - avdevice.h
 1183   Add avdevice_list_devices() and avdevice_free_list_devices()
 1184 
 1185 2014-02-16 - db3c970 - lavf 55.33.100 - avio.h
 1186   Add avio_find_protocol_name() to find out the name of the protocol that would
 1187   be selected for a given URL.
 1188 
 1189 2014-02-15 - a2bc6c1 / c98f316 - lavu 52.64.100 / 53.3.0 - frame.h
 1190   Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
 1191   downmix_info.h API, which identify downmix-related metadata.
 1192 
 1193 2014-02-11 - 1b05ac2 - lavf 55.32.100 - avformat.h
 1194   Add av_write_uncoded_frame() and av_interleaved_write_uncoded_frame().
 1195 
 1196 2014-02-04 - 3adb5f8 / d9ae103 - lavf 55.30.100 / 55.11.0 - avformat.h
 1197   Add AVFormatContext.max_interleave_delta for controlling amount of buffering
 1198   when interleaving.
 1199 
 1200 2014-02-02 - 5871ee5 - lavf 55.29.100 - avformat.h
 1201   Add output_ts_offset muxing option to AVFormatContext.
 1202 
 1203 2014-01-27 - 102bd64 - lavd 55.7.100 - avdevice.h
 1204                        lavf 55.28.100 - avformat.h
 1205   Add avdevice_dev_to_app_control_message() function.
 1206 
 1207 2014-01-27 - 7151411 - lavd 55.6.100 - avdevice.h
 1208                        lavf 55.27.100 - avformat.h
 1209   Add avdevice_app_to_dev_control_message() function.
 1210 
 1211 2014-01-24 - 86bee79 - lavf 55.26.100 - avformat.h
 1212   Add AVFormatContext option metadata_header_padding to allow control over the
 1213   amount of padding added.
 1214 
 1215 2014-01-20 - eef74b2 / 93c553c - lavc 55.48.102 / 55.32.1 - avcodec.h
 1216   Edges are not required anymore on video buffers allocated by get_buffer2()
 1217   (i.e. as if the CODEC_FLAG_EMU_EDGE flag was always on). Deprecate
 1218   CODEC_FLAG_EMU_EDGE and avcodec_get_edge_width().
 1219 
 1220 2014-01-19 - 1a193c4 - lavf 55.25.100 - avformat.h
 1221   Add avformat_get_mov_video_tags() and avformat_get_mov_audio_tags().
 1222 
 1223 2014-01-19 - 3532dd5 - lavu 52.63.100 - rational.h
 1224   Add av_make_q() function.
 1225 
 1226 2014-01-05 - 4cf4da9 / 5b4797a - lavu 52.62.100 / 53.2.0 - frame.h
 1227   Add AV_FRAME_DATA_MATRIXENCODING value to the AVFrameSideDataType enum, which
 1228   identifies AVMatrixEncoding data.
 1229 
 1230 2014-01-05 - 751385f / 5c437fb - lavu 52.61.100 / 53.1.0 - channel_layout.h
 1231   Add values for various Dolby flags to the AVMatrixEncoding enum.
 1232 
 1233 2014-01-04 - b317f94 - lavu 52.60.100 - mathematics.h
 1234   Add av_add_stable() function.
 1235 
 1236 2013-12-22 - 911676c - lavu 52.59.100 - avstring.h
 1237   Add av_strnlen() function.
 1238 
 1239 2013-12-09 - 64f73ac - lavu 52.57.100 - opencl.h
 1240   Add av_opencl_benchmark() function.
 1241 
 1242 2013-11-30 - 82b2e9c - lavu 52.56.100 - ffversion.h
 1243   Moves version.h to libavutil/ffversion.h.
 1244   Install ffversion.h and make it public.
 1245 
 1246 2013-12-11 - 29c83d2 / b9fb59d,409a143 / 9431356,44967ab / d7b3ee9 - lavc 55.45.101 / 55.28.1 - avcodec.h
 1247   av_frame_alloc(), av_frame_unref() and av_frame_free() now can and should be
 1248   used instead of avcodec_alloc_frame(), avcodec_get_frame_defaults() and
 1249   avcodec_free_frame() respectively. The latter three functions are deprecated.
 1250 
 1251 2013-12-09 - 7a60348 / 7e244c6- - lavu 52.58.100 / 52.20.0 - frame.h
 1252   Add AV_FRAME_DATA_STEREO3D value to the AVFrameSideDataType enum and
 1253   stereo3d.h API, that identify codec-independent stereo3d information.
 1254 
 1255 2013-11-26 - 625b290 / 1eaac1d- - lavu 52.55.100 / 52.19.0 - frame.h
 1256   Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
 1257   identifies ATSC A53 Part 4 Closed Captions data.
 1258 
 1259 2013-11-22 - 6859065 - lavu 52.54.100 - avstring.h
 1260   Add av_utf8_decode() function.
 1261 
 1262 2013-11-22 - fb7d70c - lavc 55.44.100 - avcodec.h
 1263   Add HEVC profiles
 1264 
 1265 2013-11-20 - c28b61c - lavc 55.44.100 - avcodec.h
 1266   Add av_packet_{un,}pack_dictionary()
 1267   Add AV_PKT_METADATA_UPDATE side data type, used to transmit key/value
 1268   strings between a stream and the application.
 1269 
 1270 2013-11-14 - 7c888ae / cce3e0a - lavu 52.53.100 / 52.18.0 - mem.h
 1271   Move av_fast_malloc() and av_fast_realloc() for libavcodec to libavutil.
 1272 
 1273 2013-11-14 - b71e4d8 / 8941971 - lavc 55.43.100 / 55.27.0 - avcodec.h
 1274   Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
 1275   private option of the mpegvideo encoder family.
 1276 
 1277 2013-11-14 - 31c09b7 / 728c465 - lavc 55.42.100 / 55.26.0 - vdpau.h
 1278   Add av_vdpau_get_profile().
 1279   Add av_vdpau_alloc_context(). This function must from now on be
 1280   used for allocating AVVDPAUContext.
 1281 
 1282 2013-11-04 - be41f21 / cd8f772 - lavc 55.41.100 / 55.25.0 - avcodec.h
 1283                        lavu 52.51.100 - frame.h
 1284   Add ITU-R BT.2020 and other not yet included values to color primaries,
 1285   transfer characteristics and colorspaces.
 1286 
 1287 2013-11-04 - 85cabf1 - lavu 52.50.100 - avutil.h
 1288   Add av_fopen_utf8()
 1289 
 1290 2013-10-31 - 78265fc / 28096e0 - lavu 52.49.100 / 52.17.0 - frame.h
 1291   Add AVFrame.flags and AV_FRAME_FLAG_CORRUPT.
 1292 
 1293 
 1294 -------- 8< --------- FFmpeg 2.1 was cut here -------- 8< ---------
 1295 
 1296 2013-10-27 - dbe6f9f - lavc 55.39.100 - avcodec.h
 1297   Add CODEC_CAP_DELAY support to avcodec_decode_subtitle2.
 1298 
 1299 2013-10-27 - d61617a - lavu 52.48.100 - parseutils.h
 1300   Add av_get_known_color_name().
 1301 
 1302 2013-10-17 - 8696e51 - lavu 52.47.100 - opt.h
 1303   Add AV_OPT_TYPE_CHANNEL_LAYOUT and channel layout option handlers
 1304   av_opt_get_channel_layout() and av_opt_set_channel_layout().
 1305 
 1306 2013-10-06 - ccf96f8 -libswscale 2.5.101 - options.c
 1307   Change default scaler to bicubic
 1308 
 1309 2013-10-03 - e57dba0 - lavc 55.34.100 - avcodec.h
 1310   Add av_codec_get_max_lowres()
 1311 
 1312 2013-10-02 - 5082fcc - lavf 55.19.100 - avformat.h
 1313   Add audio/video/subtitle AVCodec fields to AVFormatContext to force specific
 1314   decoders
 1315 
 1316 2013-09-28 - 7381d31 / 0767bfd - lavfi 3.88.100 / 3.11.0 - avfilter.h
 1317   Add AVFilterGraph.execute and AVFilterGraph.opaque for custom slice threading
 1318   implementations.
 1319 
 1320 2013-09-21 - 85f8a3c / e208e6d - lavu 52.46.100 / 52.16.0 - pixfmt.h
 1321   Add interleaved 4:2:2 8/10-bit formats AV_PIX_FMT_NV16 and
 1322   AV_PIX_FMT_NV20.
 1323 
 1324 2013-09-16 - c74c3fb / 3feb3d6 - lavu 52.44.100 / 52.15.0 - mem.h
 1325   Add av_reallocp.
 1326 
 1327 2013-09-04 - 3e1f507 - lavc 55.31.101 - avcodec.h
 1328   avcodec_close() argument can be NULL.
 1329 
 1330 2013-09-04 - 36cd017a - lavf 55.16.101 - avformat.h
 1331   avformat_close_input() argument can be NULL and point on NULL.
 1332 
 1333 2013-08-29 - e31db62 - lavf 55.15.100 - avformat.h
 1334   Add av_format_get_probe_score().
 1335 
 1336 2013-08-15 - 1e0e193 - lsws 2.5.100 -
 1337   Add a sws_dither AVOption, allowing to set the dither algorithm used
 1338 
 1339 2013-08-11 - d404fe35 - lavc 55.27.100 - vdpau.h
 1340   Add a render2 alternative to the render callback function.
 1341 
 1342 2013-08-11 - af05edc - lavc 55.26.100 - vdpau.h
 1343   Add allocation function for AVVDPAUContext, allowing
 1344   to extend it in the future without breaking ABI/API.
 1345 
 1346 2013-08-10 - 67a580f / 5a9a9d4 - lavc 55.25.100 / 55.16.0 - avcodec.h
 1347   Extend AVPacket API with av_packet_unref, av_packet_ref,
 1348   av_packet_move_ref, av_packet_copy_props, av_packet_free_side_data.
 1349 
 1350 2013-08-05 - 9547e3e / f824535 - lavc 55.22.100 / 55.13.0 - avcodec.h
 1351   Deprecate the bitstream-related members from struct AVVDPAUContext.
 1352   The bitstream buffers no longer need to be explicitly freed.
 1353 
 1354 2013-08-05 - 3b805dc / 549294f - lavc 55.21.100 / 55.12.0 - avcodec.h
 1355   Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
 1356   and select the AV_PIX_FMT_VDPAU format with get_format() instead.
 1357 
 1358 2013-08-05 - 4ee0984 / a0ad5d0 - lavu 52.41.100 / 52.14.0 - pixfmt.h
 1359   Deprecate AV_PIX_FMT_VDPAU_*. Use AV_PIX_FMT_VDPAU instead.
 1360 
 1361 2013-08-02 - 82fdfe8 / a8b1927 - lavc 55.20.100 / 55.11.0 - avcodec.h
 1362   Add output_picture_number to AVCodecParserContext.
 1363 
 1364 2013-07-23 - abc8110 - lavc 55.19.100 - avcodec.h
 1365   Add avcodec_chroma_pos_to_enum()
 1366   Add avcodec_enum_to_chroma_pos()
 1367 
 1368 
 1369 -------- 8< --------- FFmpeg 2.0 was cut here -------- 8< ---------
 1370 
 1371 2013-07-03 - 838bd73 - lavfi 3.78.100 - avfilter.h
 1372   Deprecate avfilter_graph_parse() in favor of the equivalent
 1373   avfilter_graph_parse_ptr().
 1374 
 1375 2013-06-24 - af5f9c0 / 95d5246 - lavc 55.17.100 / 55.10.0 - avcodec.h
 1376   Add MPEG-2 AAC profiles
 1377 
 1378 2013-06-25 - af5f9c0 / 95d5246 - lavf 55.10.100 - avformat.h
 1379   Add AV_DISPOSITION_* flags to indicate text track kind.
 1380 
 1381 2013-06-15 - 99b8cd0 - lavu 52.36.100
 1382   Add AVRIPEMD:
 1383    av_ripemd_alloc()
 1384    av_ripemd_init()
 1385    av_ripemd_update()
 1386    av_ripemd_final()
 1387 
 1388 2013-06-10 - 82ef670 - lavu 52.35.101 - hmac.h
 1389   Add AV_HMAC_SHA224, AV_HMAC_SHA256, AV_HMAC_SHA384, AV_HMAC_SHA512
 1390 
 1391 2013-06-04 - 30b491f / fc962d4 - lavu 52.35.100 / 52.13.0 - mem.h
 1392   Add av_realloc_array and av_reallocp_array
 1393 
 1394 2013-05-30 - 682b227 - lavu 52.35.100
 1395   Add AVSHA512:
 1396    av_sha512_alloc()
 1397    av_sha512_init()
 1398    av_sha512_update()
 1399    av_sha512_final()
 1400 
 1401 2013-05-24 - 8d4e969 / 129bb23 - lavfi 3.10.0 / 3.70.100 - avfilter.h
 1402   Add support for slice multithreading to lavfi. Filters supporting threading
 1403   are marked with AVFILTER_FLAG_SLICE_THREADS.
 1404   New fields AVFilterContext.thread_type, AVFilterGraph.thread_type and
 1405   AVFilterGraph.nb_threads (accessible directly or through AVOptions) may be
 1406   used to configure multithreading.
 1407 
 1408 2013-05-24 - fe40a9f / 2a6eaea - lavu 52.12.0 / 52.34.100 - cpu.h
 1409   Add av_cpu_count() function for getting the number of logical CPUs.
 1410 
 1411 2013-05-24 - 0c25c39 / b493847 - lavc 55.7.0 / 55.12.100 - avcodec.h
 1412   Add picture_structure to AVCodecParserContext.
 1413 
 1414 2013-05-17 - 3a751ea - lavu 52.33.100 - opt.h
 1415   Add AV_OPT_TYPE_COLOR value to AVOptionType enum.
 1416 
 1417 2013-05-13 - e398416 - lavu 52.31.100 - mem.h
 1418   Add av_dynarray2_add().
 1419 
 1420 2013-05-12 - 1776177 - lavfi 3.65.100
 1421   Add AVFILTER_FLAG_SUPPORT_TIMELINE* filter flags.
 1422 
 1423 2013-04-19 - 380cfce - lavc 55.4.100
 1424   Add AV_CODEC_PROP_TEXT_SUB property for text based subtitles codec.
 1425 
 1426 2013-04-18 - 7c1a002 - lavf 55.3.100
 1427   The matroska demuxer can now output proper verbatim ASS packets. It will
 1428   become the default starting lavf 56.0.100.
 1429 
 1430 2013-04-10 - af0d270 - lavu 25.26.100 - avutil.h,opt.h
 1431   Add av_int_list_length()
 1432   and av_opt_set_int_list().
 1433 
 1434 2013-03-30 - 5c73645 - lavu 52.24.100 - samplefmt.h
 1435   Add av_samples_alloc_array_and_samples().
 1436 
 1437 2013-03-29 - ef7b6b4 - lavf 55.1.100 - avformat.h
 1438   Add av_guess_frame_rate()
 1439 
 1440 2013-03-20 - 8d928a9 - lavu 52.22.100 - opt.h
 1441   Add AV_OPT_TYPE_DURATION value to AVOptionType enum.
 1442 
 1443 2013-03-17 - 7aa9af5 - lavu 52.20.100 - opt.h
 1444   Add AV_OPT_TYPE_VIDEO_RATE value to AVOptionType enum.
 1445 
 1446 
 1447 -------- 8< --------- FFmpeg 1.2 was cut here -------- 8< ---------
 1448 
 1449 2013-03-07 - 9767ec6 - lavu 52.18.100 - avstring.h,bprint.h
 1450   Add av_escape() and av_bprint_escape() API.
 1451 
 1452 2013-02-24 - b59cd08 - lavfi 3.41.100 - buffersink.h
 1453   Add sample_rates field to AVABufferSinkParams.
 1454 
 1455 2013-01-17 - a1a707f - lavf 54.61.100
 1456   Add av_codec_get_tag2().
 1457 
 1458 2013-01-01 - 2eb2e17 - lavfi 3.34.100
 1459   Add avfilter_get_audio_buffer_ref_from_arrays_channels.
 1460 
 1461 
 1462 -------- 8< --------- FFmpeg 1.1 was cut here -------- 8< ---------
 1463 
 1464 2012-12-20 - 34de47aa - lavfi 3.29.100 - avfilter.h
 1465   Add AVFilterLink.channels, avfilter_link_get_channels()
 1466   and avfilter_ref_get_channels().
 1467 
 1468 2012-12-15 - 96d815fc - lavc 54.80.100 - avcodec.h
 1469   Add pkt_size field to AVFrame.
 1470 
 1471 2012-11-25 - c70ec631 - lavu 52.9.100 - opt.h
 1472   Add the following convenience functions to opt.h:
 1473    av_opt_get_image_size
 1474    av_opt_get_pixel_fmt
 1475    av_opt_get_sample_fmt
 1476    av_opt_set_image_size
 1477    av_opt_set_pixel_fmt
 1478    av_opt_set_sample_fmt
 1479 
 1480 2012-11-17 - 4cd74c81 - lavu 52.8.100 - bprint.h
 1481   Add av_bprint_strftime().
 1482 
 1483 2012-11-15 - 92648107 - lavu 52.7.100 - opt.h
 1484   Add av_opt_get_key_value().
 1485 
 1486 2012-11-13 - 79456652 - lavfi 3.23.100 - avfilter.h
 1487   Add channels field to AVFilterBufferRefAudioProps.
 1488 
 1489 2012-11-03 - 481fdeee - lavu 52.3.100 - opt.h
 1490   Add AV_OPT_TYPE_SAMPLE_FMT value to AVOptionType enum.
 1491 
 1492 2012-10-21 - 6fb2fd8 - lavc  54.68.100 - avcodec.h
 1493                        lavfi  3.20.100 - avfilter.h
 1494   Add AV_PKT_DATA_STRINGS_METADATA side data type, used to transmit key/value
 1495   strings between AVPacket and AVFrame, and add metadata field to
 1496   AVCodecContext (which shall not be accessed by users; see AVFrame metadata
 1497   instead).
 1498 
 1499 2012-09-27 - a70b493 - lavd 54.3.100 - version.h
 1500   Add LIBAVDEVICE_IDENT symbol.
 1501 
 1502 2012-09-27 - a70b493 - lavfi 3.18.100 - version.h
 1503   Add LIBAVFILTER_IDENT symbol.
 1504 
 1505 2012-09-27 - a70b493 - libswr 0.16.100 - version.h
 1506   Add LIBSWRESAMPLE_VERSION, LIBSWRESAMPLE_BUILD
 1507   and LIBSWRESAMPLE_IDENT symbols.
 1508 
 1509 
 1510 -------- 8< --------- FFmpeg 1.0 was cut here -------- 8< ---------
 1511 
 1512 2012-09-06 - 29e972f - lavu 51.72.100 - parseutils.h
 1513   Add av_small_strptime() time parsing function.
 1514 
 1515   Can be used as a stripped-down replacement for strptime(), on
 1516   systems which do not support it.
 1517 
 1518 2012-08-25 - 2626cc4 - lavf 54.28.100
 1519   Matroska demuxer now identifies SRT subtitles as AV_CODEC_ID_SUBRIP instead
 1520   of AV_CODEC_ID_TEXT.
 1521 
 1522 2012-08-13 - 5c0d8bc - lavfi 3.8.100 - avfilter.h
 1523   Add avfilter_get_class() function, and priv_class field to AVFilter
 1524   struct.
 1525 
 1526 2012-08-12 - a25346e - lavu 51.69.100 - opt.h
 1527   Add AV_OPT_FLAG_FILTERING_PARAM symbol in opt.h.
 1528 
 1529 2012-07-31 - 23fc4dd - lavc 54.46.100
 1530   Add channels field to AVFrame.
 1531 
 1532 2012-07-30 - f893904 - lavu 51.66.100
 1533   Add av_get_channel_description()
 1534   and av_get_standard_channel_layout() functions.
 1535 
 1536 2012-07-21 - 016a472 - lavc 54.43.100
 1537   Add decode_error_flags field to AVFrame.
 1538 
 1539 2012-07-20 - b062936 - lavf 54.18.100
 1540   Add avformat_match_stream_specifier() function.
 1541 
 1542 2012-07-14 - f49ec1b - lavc 54.38.100 - avcodec.h
 1543   Add metadata to AVFrame, and the accessor functions
 1544   av_frame_get_metadata() and av_frame_set_metadata().
 1545 
 1546 2012-07-10 - 0e003d8 - lavc 54.33.100
 1547   Add av_fast_padded_mallocz().
 1548 
 1549 2012-07-10 - 21d5609 - lavfi 3.2.0 - avfilter.h
 1550   Add init_opaque() callback to AVFilter struct.
 1551 
 1552 2012-06-26 - e6674e4 - lavu 51.63.100 - imgutils.h
 1553   Add functions to libavutil/imgutils.h:
 1554   av_image_get_buffer_size()
 1555   av_image_fill_arrays()
 1556   av_image_copy_to_buffer()
 1557 
 1558 2012-06-24 - c41899a - lavu 51.62.100 - version.h
 1559   version moved from avutil.h to version.h
 1560 
 1561 2012-04-11 - 359abb1 - lavu 51.58.100 - error.h
 1562   Add av_make_error_string() and av_err2str() utilities to
 1563   libavutil/error.h.
 1564 
 1565 2012-06-05 - 62b39d4 - lavc 54.24.100
 1566   Add pkt_duration field to AVFrame.
 1567 
 1568 2012-05-24 - f2ee065 - lavu 51.54.100
 1569   Move AVPALETTE_SIZE and AVPALETTE_COUNT macros from
 1570   libavcodec/avcodec.h to libavutil/pixfmt.h.
 1571 
 1572 2012-05-14 - 94a9ac1 - lavf 54.5.100
 1573   Add av_guess_sample_aspect_ratio() function.
 1574 
 1575 2012-04-20 - 65fa7bc - lavfi 2.70.100
 1576   Add avfilter_unref_bufferp() to avfilter.h.
 1577 
 1578 2012-04-13 - 162e400 - lavfi 2.68.100
 1579   Install libavfilter/asrc_abuffer.h public header.
 1580 
 1581 2012-03-26 - a67d9cf - lavfi 2.66.100
 1582   Add avfilter_fill_frame_from_{audio_,}buffer_ref() functions.
 1583 
 1584 2013-05-15 - ff46809 / e6c4ac7 - lavu 52.32.100 / 52.11.0 - pixdesc.h
 1585   Replace PIX_FMT_* flags with AV_PIX_FMT_FLAG_*.
 1586 
 1587 2013-04-03 - 6fc58a8 / 507b1e4 - lavc 55.7.100 / 55.4.0 - avcodec.h
 1588   Add field_order to AVCodecParserContext.
 1589 
 1590 2013-04-19 - f4b05cd / 5e83d9a - lavc 55.5.100 / 55.2.0 - avcodec.h
 1591   Add CODEC_FLAG_UNALIGNED to allow decoders to produce unaligned output.
 1592 
 1593 2013-04-11 - lavfi 3.53.100 / 3.8.0
 1594   231fd44 / 38f0c07 - Move all content from avfiltergraph.h to avfilter.h. Deprecate
 1595             avfilterhraph.h, user applications should include just avfilter.h
 1596   86070b8 / bc1a985 - Add avfilter_graph_alloc_filter(), deprecate avfilter_open() and
 1597             avfilter_graph_add_filter().
 1598   4fde705 / 1113672 - Add AVFilterContext.graph pointing to the AVFilterGraph that contains the
 1599             filter.
 1600   710b0aa / 48a5ada - Add avfilter_init_str(), deprecate avfilter_init_filter().
 1601   46de9ba / 1ba95a9 - Add avfilter_init_dict().
 1602   16fc24b / 7cdd737 - Add AVFilter.flags field and AVFILTER_FLAG_DYNAMIC_{INPUTS,OUTPUTS} flags.
 1603   f4db6bf / 7e8fe4b - Add avfilter_pad_count() for counting filter inputs/outputs.
 1604   835cc0f / fa2a34c - Add avfilter_next(), deprecate av_filter_next().
 1605             Deprecate avfilter_uninit().
 1606 
 1607 2013-04-09 - lavfi 3.51.100 / 3.7.0 - avfilter.h
 1608   0594ef0 / b439c99 - Add AVFilter.priv_class for exporting filter options through the
 1609             AVOptions API in the similar way private options work in lavc and lavf.
 1610   44d4488 / 8114c10 - Add avfilter_get_class().
 1611   Switch all filters to use AVOptions.
 1612 
 1613 2013-03-19 - 17ebef2 / 2c328a9 - lavu 52.20.100 / 52.9.0 - pixdesc.h
 1614   Add av_pix_fmt_count_planes() function for counting planes in a pixel format.
 1615 
 1616 2013-03-16 - ecade98 / 42c7c61 - lavfi 3.47.100 / 3.6.0
 1617   Add AVFilterGraph.nb_filters, deprecate AVFilterGraph.filter_count.
 1618 
 1619 2013-03-08 - Reference counted buffers - lavu 52.8.0, lavc 55.0.100 / 55.0.0, lavf 55.0.100 / 55.0.0,
 1620 lavd 54.4.100 / 54.0.0, lavfi 3.5.0
 1621   36099df / 8e401db, 532f31a / 1cec062 - add a new API for reference counted buffers and buffer
 1622                      pools (new header libavutil/buffer.h).
 1623   2653e12 / 1afddbe - add AVPacket.buf to allow reference counting for the AVPacket data.
 1624             Add av_packet_from_data() function for constructing packets from
 1625             av_malloc()ed data.
 1626   c4e8821 / 7ecc2d4 - move AVFrame from lavc to lavu (new header libavutil/frame.h), add
 1627             AVFrame.buf/extended_buf to allow reference counting for the AVFrame
 1628             data. Add new API for working with reference-counted AVFrames.
 1629   80e9e63 / 759001c - add the refcounted_frames field to AVCodecContext to make audio and
 1630             video decoders return reference-counted frames. Add get_buffer2()
 1631             callback to AVCodecContext which allocates reference-counted frames.
 1632             Add avcodec_default_get_buffer2() as the default get_buffer2()
 1633             implementation.
 1634             Deprecate AVCodecContext.get_buffer() / release_buffer() /
 1635             reget_buffer(), avcodec_default_get_buffer(),
 1636             avcodec_default_reget_buffer(), avcodec_default_release_buffer().
 1637             Remove avcodec_default_free_buffers(), which should not have ever
 1638             been called from outside of lavc.
 1639             Deprecate the following AVFrame fields:
 1640                 * base -- is now stored in AVBufferRef
 1641                 * reference, type, buffer_hints -- are unnecessary in the new API
 1642                 * hwaccel_picture_private, owner, thread_opaque -- should not
 1643                   have been accessed from outside of lavc
 1644                 * qscale_table, qstride, qscale_type, mbskip_table, motion_val,
 1645                   mb_type, dct_coeff, ref_index -- mpegvideo-specific tables,
 1646                   which are not exported anymore.
 1647   a05a44e / 7e35037 - switch libavfilter to use AVFrame instead of AVFilterBufferRef. Add
 1648             av_buffersrc_add_frame(), deprecate av_buffersrc_buffer().
 1649             Add av_buffersink_get_frame() and av_buffersink_get_samples(),
 1650             deprecate av_buffersink_read() and av_buffersink_read_samples().
 1651             Deprecate AVFilterBufferRef and all functions for working with it.
 1652 
 1653 2013-03-17 - 6c17ff8 / 12c5c1d - lavu 52.19.100 / 52.8.0 - avstring.h
 1654   Add av_isdigit, av_isgraph, av_isspace, av_isxdigit.
 1655 
 1656 2013-02-23 - 71cf094 / 9f12235 - lavfi 3.40.100 / 3.4.0 - avfiltergraph.h
 1657   Add resample_lavr_opts to AVFilterGraph for setting libavresample options
 1658   for auto-inserted resample filters.
 1659 
 1660 2013-01-25 - e7e14bc / 38c1466 - lavu 52.17.100 / 52.7.0 - dict.h
 1661   Add av_dict_parse_string() to set multiple key/value pairs at once from a
 1662   string.
 1663 
 1664 2013-01-25 - 25be630 / b85a5e8 - lavu 52.16.100 / 52.6.0 - avstring.h
 1665   Add av_strnstr()
 1666 
 1667 2013-01-15 - e7e0186 / 8ee288d - lavu 52.15.100 / 52.5.0 - hmac.h
 1668   Add AVHMAC.
 1669 
 1670 2013-01-13 - 8ee7b38 / 44e065d - lavc 54.87.100 / 54.36.0 - vdpau.h
 1671   Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
 1672 
 1673 2013-01-12 - dae382b / 169fb94 - lavu 52.14.100 / 52.4.0 - pixdesc.h
 1674   Add AV_PIX_FMT_VDPAU flag.
 1675 
 1676 2013-01-07 - 249fca3 / 074a00d - lavr 1.1.0
 1677   Add avresample_set_channel_mapping() for input channel reordering,
 1678   duplication, and silencing.
 1679 
 1680 2012-12-29 - lavu 52.13.100 / 52.3.0 - avstring.h
 1681   2ce43b3 / d8fd06c - Add av_basename() and av_dirname().
 1682   e13d5e9 / c1a02e8 - Add av_pix_fmt_get_chroma_sub_sample and deprecate
 1683                       avcodec_get_chroma_sub_sample.
 1684 
 1685 2012-11-11 - 03b0787 / 5980f5d - lavu 52.6.100 / 52.2.0 - audioconvert.h
 1686   Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
 1687 
 1688 2012-10-21 - e3a91c5 / a893655 - lavu 51.77.100 / 51.45.0 - error.h
 1689   Add AVERROR_EXPERIMENTAL
 1690 
 1691 2012-10-12 - a33ed6b / d2fcb35 - lavu 51.76.100 / 51.44.0 - pixdesc.h
 1692   Add functions for accessing pixel format descriptors.
 1693   Accessing the av_pix_fmt_descriptors array directly is now
 1694   deprecated.
 1695 
 1696 2012-10-11 - f391e40 / 9a92aea - lavu 51.75.100 / 51.43.0 - aes.h, md5.h, sha.h, tree.h
 1697   Add functions for allocating the opaque contexts for the algorithms,
 1698 
 1699 2012-10-10 - de31814 / b522000 - lavf 54.32.100 / 54.18.0 - avio.h
 1700   Add avio_closep to complement avio_close.
 1701 
 1702 2012-10-08 - ae77266 / 78071a1 - lavu 51.74.100 / 51.42.0 - pixfmt.h
 1703   Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
 1704   To provide backwards compatibility, PixelFormat is now #defined as
 1705   AVPixelFormat.
 1706   Note that this can break user code that includes pixfmt.h and uses the
 1707   'PixelFormat' identifier. Such code should either #undef PixelFormat
 1708   or stop using the PixelFormat name.
 1709 
 1710 2012-10-05 - 55c49af / e7ba5b1 - lavr 1.0.0 - avresample.h
 1711   Data planes parameters to avresample_convert() and
 1712   avresample_read() are now uint8_t** instead of void**.
 1713   Libavresample is now stable.
 1714 
 1715 2012-09-26 - 3ba0dab7 / 1384df64 - lavf 54.29.101 / 56.06.3 - avformat.h
 1716   Add AVFormatContext.avoid_negative_ts.
 1717 
 1718 2012-09-24 - 46a3595 / a42aada - lavc 54.59.100 / 54.28.0 - avcodec.h
 1719   Add avcodec_free_frame(). This function must now
 1720   be used for freeing an AVFrame.
 1721 
 1722 2012-09-12 - e3e09f2 / 8919fee - lavu 51.73.100 / 51.41.0 - audioconvert.h
 1723   Added AV_CH_LOW_FREQUENCY_2 channel mask value.
 1724 
 1725 2012-09-04 - b21b5b0 / 686a329 - lavu 51.71.100 / 51.40.0 - opt.h
 1726   Reordered the fields in default_val in AVOption, changed which
 1727   default_val field is used for which AVOptionType.
 1728 
 1729 2012-08-30 - 98298eb / a231832 - lavc 54.54.101 / 54.26.1 - avcodec.h
 1730   Add codec descriptor properties AV_CODEC_PROP_LOSSY and
 1731   AV_CODEC_PROP_LOSSLESS.
 1732 
 1733 2012-08-18 - lavc 54.26 - avcodec.h
 1734   Add codec descriptors for accessing codec properties without having
 1735   to refer to a specific decoder or encoder.
 1736 
 1737   f5f3684 / c223d79 - Add an AVCodecDescriptor struct and functions
 1738             avcodec_descriptor_get() and avcodec_descriptor_next().
 1739   f5f3684 / 51efed1 - Add AVCodecDescriptor.props and AV_CODEC_PROP_INTRA_ONLY.
 1740   6c180b3 / 91e59fe - Add avcodec_descriptor_get_by_name().
 1741 
 1742 2012-08-08 - f5f3684 / 987170c - lavu 51.68.100 / 51.38.0 - dict.h
 1743   Add av_dict_count().
 1744 
 1745 2012-08-07 - 7a72695 / 104e10f - lavc 54.51.100 / 54.25.0 - avcodec.h
 1746   Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
 1747   To provide backwards compatibility, CodecID is now #defined as AVCodecID.
 1748   Note that this can break user code that includes avcodec.h and uses the
 1749   'CodecID' identifier. Such code should either #undef CodecID or stop using the
 1750   CodecID name.
 1751 
 1752 2012-08-03 - e776ee8 / 239fdf1 - lavu 51.66.101 / 51.37.1 - cpu.h
 1753                        lsws 2.1.1   - swscale.h
 1754   Rename AV_CPU_FLAG_MMX2  ---> AV_CPU_FLAG_MMXEXT.
 1755   Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
 1756 
 1757 2012-07-29 - 7c26761 / 681ed00 - lavf 54.22.100 / 54.13.0 - avformat.h
 1758   Add AVFMT_FLAG_NOBUFFER for low latency use cases.
 1759 
 1760 2012-07-10 - fbe0245 / f3e5e6f - lavu 51.65.100 / 51.37.0
 1761   Add av_malloc_array() and av_mallocz_array()
 1762 
 1763 2012-06-22 - e847f41 / d3d3a32 - lavu 51.61.100 / 51.34.0
 1764   Add av_usleep()
 1765 
 1766 2012-06-20 - 4da42eb / ae0a301 - lavu 51.60.100 / 51.33.0
 1767   Move av_gettime() to libavutil, add libavutil/time.h
 1768 
 1769 2012-06-09 - 82edf67 / 3971be0 - lavr 0.0.3
 1770   Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
 1771 
 1772 2012-06-12 - c7b9eab / 9baeff9 - lavfi 2.79.100 / 2.23.0 - avfilter.h
 1773   Add AVFilterContext.nb_inputs/outputs. Deprecate
 1774   AVFilterContext.input/output_count.
 1775 
 1776 2012-06-12 - c7b9eab / 84b9fbe - lavfi 2.79.100 / 2.22.0 - avfilter.h
 1777   Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
 1778   should now be used instead of accessing AVFilterPad members
 1779   directly.
 1780 
 1781 2012-06-12 - 3630a07 / b0f0dfc - lavu 51.57.100 / 51.32.0 - audioconvert.h
 1782   Add av_get_channel_layout_channel_index(), av_get_channel_name()
 1783   and av_channel_layout_extract_channel().
 1784 
 1785 2012-05-25 - 53ce990 / 154486f - lavu 51.55.100 / 51.31.0 - opt.h
 1786   Add av_opt_set_bin()
 1787 
 1788 2012-05-15 - lavfi 2.74.100 / 2.17.0
 1789   Add support for audio filters
 1790   61930bd / ac71230, 1cbf7fb / a2cd9be - add video/audio buffer sink in a new installed
 1791                     header buffersink.h
 1792   1cbf7fb / 720c6b7 - add av_buffersrc_write_frame(), deprecate
 1793             av_vsrc_buffer_add_frame()
 1794   61930bd / ab16504 - add avfilter_copy_buf_props()
 1795   61930bd / 9453c9e - add extended_data to AVFilterBuffer
 1796   61930bd / 1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
 1797 
 1798 2012-05-09 - lavu 51.53.100 / 51.30.0 - samplefmt.h
 1799   61930bd / 142e740 - add av_samples_copy()
 1800   61930bd / 6d7f617 - add av_samples_set_silence()
 1801 
 1802 2012-05-09 - 61930bd / a5117a2 - lavc 54.21.101 / 54.13.1
 1803   For audio formats with fixed frame size, the last frame
 1804   no longer needs to be padded with silence, libavcodec
 1805   will handle this internally (effectively all encoders
 1806   behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
 1807 
 1808 2012-05-07 - 653d117 / 828bd08 - lavc 54.20.100 / 54.13.0 - avcodec.h
 1809   Add sample_rate and channel_layout fields to AVFrame.
 1810 
 1811 2012-05-01 - 2330eb1 / 4010d72 - lavr 0.0.1
 1812   Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
 1813 
 1814 2012-04-25 - e890b68 / 3527a73 - lavu 51.48.100 / 51.29.0 - cpu.h
 1815   Add av_parse_cpu_flags()
 1816 
 1817 2012-04-24 - 3ead79e / c8af852 - lavr 0.0.0
 1818   Add libavresample audio conversion library
 1819 
 1820 2012-04-20 - 3194ab7 / 0c0d1bc - lavu 51.47.100 / 51.28.0 - audio_fifo.h
 1821   Add audio FIFO functions:
 1822     av_audio_fifo_free()
 1823     av_audio_fifo_alloc()
 1824     av_audio_fifo_realloc()
 1825     av_audio_fifo_write()
 1826     av_audio_fifo_read()
 1827     av_audio_fifo_drain()
 1828     av_audio_fifo_reset()
 1829     av_audio_fifo_size()
 1830     av_audio_fifo_space()
 1831 
 1832 2012-04-14 - lavfi 2.70.100 / 2.16.0 - avfiltergraph.h
 1833   7432bcf / d7bcc71 Add avfilter_graph_parse2().
 1834 
 1835 2012-04-08 - 6bfb304 / 4d693b0 - lavu 51.46.100 / 51.27.0 - samplefmt.h
 1836   Add av_get_packed_sample_fmt() and av_get_planar_sample_fmt()
 1837 
 1838 2012-03-21 - b75c67d - lavu 51.43.100
 1839   Add bprint.h for bprint API.
 1840 
 1841 2012-02-21 - 9cbf17e - lavc 54.4.100
 1842   Add av_get_pcm_codec() function.
 1843 
 1844 2012-02-16 - 560b224 - libswr 0.7.100
 1845   Add swr_set_matrix() function.
 1846 
 1847 2012-02-09 - c28e7af - lavu 51.39.100
 1848   Add a new installed header libavutil/timestamp.h with timestamp
 1849   utilities.
 1850 
 1851 2012-02-06 - 70ffda3 - lavu 51.38.100
 1852   Add av_parse_ratio() function to parseutils.h.
 1853 
 1854 2012-02-06 - 70ffda3 - lavu 51.38.100
 1855   Add AV_LOG_MAX_OFFSET macro to log.h.
 1856 
 1857 2012-02-02 - 0eaa123 - lavu 51.37.100
 1858   Add public timecode helpers.
 1859 
 1860 2012-01-24 - 0c3577b - lavfi 2.60.100
 1861   Add avfilter_graph_dump.
 1862 
 1863 2012-03-20 - 0ebd836 / 3c90cc2 - lavfo 54.2.0
 1864   Deprecate av_read_packet(), use av_read_frame() with
 1865   AVFMT_FLAG_NOPARSE | AVFMT_FLAG_NOFILLIN in AVFormatContext.flags
 1866 
 1867 2012-03-05 - lavc 54.10.100 / 54.8.0
 1868   f095391 / 6699d07 Add av_get_exact_bits_per_sample()
 1869   f095391 / 9524cf7 Add av_get_audio_frame_duration()
 1870 
 1871 2012-03-04 - 2af8f2c / 44fe77b - lavc 54.8.100 / 54.7.0 - avcodec.h
 1872   Add av_codec_is_encoder/decoder().
 1873 
 1874 2012-03-01 - 1eb7f39 / 442c132 - lavc 54.5.100 / 54.3.0 - avcodec.h
 1875   Add av_packet_shrink_side_data.
 1876 
 1877 2012-02-29 - 79ae084 / dd2a4bc - lavf 54.2.100 / 54.2.0 - avformat.h
 1878   Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC,
 1879   used for dealing with attached pictures/cover art.
 1880 
 1881 2012-02-25 - 305e4b3 / c9bca80 - lavu 51.41.100 / 51.24.0 - error.h
 1882   Add AVERROR_UNKNOWN
 1883   NOTE: this was backported to 0.8
 1884 
 1885 2012-02-20 - eadd426 / e9cda85 - lavc 54.2.100 / 54.2.0
 1886   Add duration field to AVCodecParserContext
 1887 
 1888 2012-02-20 - eadd426 / 0b42a93 - lavu 51.40.100 / 51.23.1 - mathematics.h
 1889   Add av_rescale_q_rnd()
 1890 
 1891 2012-02-08 - f2b20b7 / 38d5533 - lavu 51.38.101 / 51.22.1 - pixdesc.h
 1892   Add PIX_FMT_PSEUDOPAL flag.
 1893 
 1894 2012-02-08 - f2b20b7 / 52f82a1 - lavc 54.2.100 / 54.1.0
 1895   Add avcodec_encode_video2() and deprecate avcodec_encode_video().
 1896 
 1897 2012-02-01 - 4c677df / 316fc74 - lavc 54.1.0
 1898   Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
 1899   memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
 1900   zero-padded bytes at the end.
 1901 
 1902 2012-01-31 - a369a6b / dd6d3b0 - lavf 54.1.0
 1903   Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
 1904   NOTE: this was backported to 0.8
 1905 
 1906 2012-01-31 - a369a6b / af08d9a - lavc 54.1.0
 1907   Add avcodec_is_open() function.
 1908   NOTE: this was backported to 0.8
 1909 
 1910 2012-01-30 - 151ecc2 / 8b93312 - lavu 51.36.100 / 51.22.0 - intfloat.h
 1911   Add a new installed header libavutil/intfloat.h with int/float punning
 1912   functions.
 1913   NOTE: this was backported to 0.8
 1914 
 1915 2012-01-25 - lavf 53.31.100 / 53.22.0
 1916   3c5fe5b / f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
 1917           buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
 1918           muxers supporting it (av_write_frame makes sure it is called
 1919           only for muxers with this flag).
 1920 
 1921 2012-01-15 - lavc 53.56.105 / 53.34.0
 1922   New audio encoding API:
 1923   67f5650 / b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
 1924           encoders.
 1925   67f5650 / 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
 1926   67f5650 / b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
 1927           Add AVCodec.encode2().
 1928 
 1929 2012-01-12 - b18e17e / 3167dc9 - lavfi 2.59.100 / 2.15.0
 1930   Add a new installed header -- libavfilter/version.h -- with version macros.
 1931 
 1932 
 1933 -------- 8< --------- FFmpeg 0.9 was cut here -------- 8< ---------
 1934 
 1935 2011-12-08 - a502939 - lavfi 2.52.0
 1936   Add av_buffersink_poll_frame() to buffersink.h.
 1937 
 1938 2011-12-08 - 26c6fec - lavu 51.31.0
 1939   Add av_log_format_line.
 1940 
 1941 2011-12-03 - 976b095 - lavu 51.30.0
 1942   Add AVERROR_BUG.
 1943 
 1944 2011-11-24 - 573ffbb - lavu 51.28.1
 1945   Add av_get_alt_sample_fmt() to samplefmt.h.
 1946 
 1947 2011-11-03 - 96949da - lavu 51.23.0
 1948   Add av_strcasecmp() and av_strncasecmp() to avstring.h.
 1949 
 1950 2011-10-20 - b35e9e1 - lavu 51.22.0
 1951   Add av_strtok() to avstring.h.
 1952 
 1953 2012-01-03 - ad1c8dd / b73ec05 - lavu 51.34.100 / 51.21.0
 1954   Add av_popcount64
 1955 
 1956 2011-12-18 - 7c29313 / 8400b12 - lavc 53.46.1 / 53.28.1
 1957   Deprecate AVFrame.age. The field is unused.
 1958 
 1959 2011-12-12 - 8bc7fe4 / 5266045 - lavf 53.25.0 / 53.17.0
 1960   Add avformat_close_input().
 1961   Deprecate av_close_input_file() and av_close_input_stream().
 1962 
 1963 2011-12-09 - c59b80c / b2890f5 - lavu 51.32.0 / 51.20.0 - audioconvert.h
 1964   Expand the channel layout list.
 1965 
 1966 2011-12-02 - e4de716 / 0eea212 - lavc 53.40.0 / 53.25.0
 1967   Add nb_samples and extended_data fields to AVFrame.
 1968   Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
 1969   Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
 1970   avcodec_decode_audio4() writes output samples to an AVFrame, which allows
 1971   audio decoders to use get_buffer().
 1972 
 1973 2011-12-04 - e4de716 / 560f773 - lavc 53.40.0 / 53.24.0
 1974   Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
 1975   Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
 1976   Change AVCodecContext.error[4] to [8] at next major bump.
 1977   Add AV_NUM_DATA_POINTERS to simplify the bump transition.
 1978 
 1979 2011-11-24 - lavu 51.29.0 / 51.19.0
 1980   92afb43 / bd97b2e - add planar RGB pixel formats
 1981   92afb43 / 6b0768e - add PIX_FMT_PLANAR and PIX_FMT_RGB pixel descriptions
 1982 
 1983 2011-11-23 - 8e576d5 / bbb46f3 - lavu 51.27.0 / 51.18.0
 1984   Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
 1985   av_samples_alloc(), to samplefmt.h.
 1986 
 1987 2011-11-23 - 8e576d5 / 8889cc4 - lavu 51.27.0 / 51.17.0
 1988   Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
 1989 
 1990 2011-11-19 - dbb38bc / f3a29b7 - lavc 53.36.0 / 53.21.0
 1991   Move some AVCodecContext fields to a new private struct, AVCodecInternal,
 1992   which is accessed from a new field, AVCodecContext.internal.
 1993   - fields moved:
 1994       AVCodecContext.internal_buffer       --> AVCodecInternal.buffer
 1995       AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
 1996       AVCodecContext.is_copy               --> AVCodecInternal.is_copy
 1997 
 1998 2011-11-16 - 8709ba9 / 6270671 - lavu 51.26.0 / 51.16.0
 1999   Add av_timegm()
 2000 
 2001 2011-11-13 - lavf 53.21.0 / 53.15.0
 2002   New interrupt callback API, allowing per-AVFormatContext/AVIOContext
 2003   interrupt callbacks.
 2004   5f268ca / 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
 2005           AVFormatContext.
 2006   5f268ca / 1dee0ac Add avio_open2() with additional parameters. Those are
 2007           an interrupt callback and an options AVDictionary.
 2008           This will allow passing AVOptions to protocols after lavf
 2009           54.0.
 2010 
 2011 2011-11-06 - 13b7781 / ba04ecf - lavu 51.24.0 / 51.14.0
 2012   Add av_strcasecmp() and av_strncasecmp() to avstring.h.
 2013 
 2014 2011-11-06 - 13b7781 / 07b172f - lavu 51.24.0 / 51.13.0
 2015   Add av_toupper()/av_tolower()
 2016 
 2017 2011-11-05 - d8cab5c / b6d08f4 - lavf 53.19.0 / 53.13.0
 2018   Add avformat_network_init()/avformat_network_deinit()
 2019 
 2020 2011-10-27 - 6faf0a2 / 512557b - lavc 53.24.0 / 53.15.0
 2021   Remove avcodec_parse_frame.
 2022   Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
 2023 
 2024 2011-10-19 - d049257 / 569129a - lavf 53.17.0 / 53.10.0
 2025   Add avformat_new_stream(). Deprecate av_new_stream().
 2026 
 2027 2011-10-13 - 91eb1b1 / b631fba - lavf 53.16.0 / 53.9.0
 2028   Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
 2029 
 2030 2011-10-12 - lavu 51.21.0 / 51.12.0
 2031   AVOptions API rewrite.
 2032 
 2033   - f884ef0 / 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
 2034   - new setting/getting functions with slightly different semantics:
 2035         f884ef0 / dac66da av_set_string3 -> av_opt_set
 2036                 av_set_double  -> av_opt_set_double
 2037                 av_set_q       -> av_opt_set_q
 2038                 av_set_int     -> av_opt_set_int
 2039 
 2040         f884ef0 / 41d9d51 av_get_string  -> av_opt_get
 2041                 av_get_double  -> av_opt_get_double
 2042                 av_get_q       -> av_opt_get_q
 2043                 av_get_int     -> av_opt_get_int
 2044 
 2045   - f884ef0 / 8c5dcaa trivial rename av_next_option -> av_opt_next
 2046   - f884ef0 / 641c7af new functions - av_opt_child_next, av_opt_child_class_next
 2047     and av_opt_find2()
 2048 
 2049 2011-09-22 - a70e787 - lavu 51.17.0
 2050   Add av_x_if_null().
 2051 
 2052 2011-09-18 - 645cebb - lavc 53.16.0
 2053   Add showall flag2
 2054 
 2055 2011-09-16 - ea8de10 - lavfi 2.42.0
 2056   Add avfilter_all_channel_layouts.
 2057 
 2058 2011-09-16 - 9899037 - lavfi 2.41.0
 2059   Rename avfilter_all_* function names to avfilter_make_all_*.
 2060 
 2061   In particular, apply the renames:
 2062   avfilter_all_formats         -> avfilter_make_all_formats
 2063   avfilter_all_channel_layouts -> avfilter_make_all_channel_layouts
 2064   avfilter_all_packing_formats -> avfilter_make_all_packing_formats
 2065 
 2066 2011-09-12 - 4381bdd - lavfi 2.40.0
 2067   Change AVFilterBufferRefAudioProps.sample_rate type from uint32_t to int.
 2068 
 2069 2011-09-12 - 2c03174 - lavfi 2.40.0
 2070   Simplify signature for avfilter_get_audio_buffer(), make it
 2071   consistent with avfilter_get_video_buffer().
 2072 
 2073 2011-09-06 - 4f7dfe1 - lavfi 2.39.0
 2074   Rename libavfilter/vsink_buffer.h to libavfilter/buffersink.h.
 2075 
 2076 2011-09-06 - c4415f6 - lavfi 2.38.0
 2077   Unify video and audio sink API.
 2078 
 2079   In particular, add av_buffersink_get_buffer_ref(), deprecate
 2080   av_vsink_buffer_get_video_buffer_ref() and change the value for the
 2081   opaque field passed to the abuffersink init function.
 2082 
 2083 2011-09-04 - 61e2e29 - lavu 51.16.0
 2084   Add av_asprintf().
 2085 
 2086 2011-08-22 - dacd827 - lavf 53.10.0
 2087   Add av_find_program_from_stream().
 2088 
 2089 2011-08-20 - 69e2c1a - lavu 51.13.0
 2090   Add av_get_media_type_string().
 2091 
 2092 2011-09-03 - 1889c67 / fb4ca26 - lavc 53.13.0
 2093                        lavf 53.11.0
 2094                        lsws  2.1.0
 2095   Add {avcodec,avformat,sws}_get_class().
 2096 
 2097 2011-08-03 - 1889c67 / c11fb82 - lavu 51.15.0
 2098   Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
 2099 
 2100 2011-08-14 - 323b930 - lavu 51.12.0
 2101   Add av_fifo_peek2(), deprecate av_fifo_peek().
 2102 
 2103 2011-08-26 - lavu 51.14.0 / 51.9.0
 2104   - 976a8b2 / add41de..976a8b2 / abc78a5 Do not include intfloat_readwrite.h,
 2105     mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
 2106 
 2107 2011-08-16 - 27fbe31 / 48f9e45 - lavf 53.11.0 / 53.8.0
 2108   Add avformat_query_codec().
 2109 
 2110 2011-08-16 - 27fbe31 / bca06e7 - lavc 53.11.0
 2111   Add avcodec_get_type().
 2112 
 2113 2011-08-06 - 0cb233c / 2f63440 - lavf 53.7.0
 2114   Add error_recognition to AVFormatContext.
 2115 
 2116 2011-08-02 - 1d186e9 / 9d39cbf - lavc 53.9.1
 2117   Add AV_PKT_FLAG_CORRUPT AVPacket flag.
 2118 
 2119 2011-07-16 - b57df29 - lavfi 2.27.0
 2120   Add audio packing negotiation fields and helper functions.
 2121 
 2122   In particular, add AVFilterPacking enum, planar, in_packings and
 2123   out_packings fields to AVFilterLink, and the functions:
 2124   avfilter_set_common_packing_formats()
 2125   avfilter_all_packing_formats()
 2126 
 2127 2011-07-10 - 3602ad7 / a67c061 - lavf 53.6.0
 2128   Add avformat_find_stream_info(), deprecate av_find_stream_info().
 2129   NOTE: this was backported to 0.7
 2130 
 2131 2011-07-10 - 3602ad7 / 0b950fe - lavc 53.8.0
 2132   Add avcodec_open2(), deprecate avcodec_open().
 2133   NOTE: this was backported to 0.7
 2134 
 2135   Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
 2136   avcodec_alloc_context2().
 2137 
 2138 2011-07-01 - b442ca6 - lavf 53.5.0 - avformat.h
 2139   Add function av_get_output_timestamp().
 2140 
 2141 2011-06-28 - 5129336 - lavu 51.11.0 - avutil.h
 2142   Define the AV_PICTURE_TYPE_NONE value in AVPictureType enum.
 2143 
 2144 
 2145 -------- 8< --------- FFmpeg 0.7 was cut here -------- 8< ---------
 2146 
 2147 
 2148 
 2149 -------- 8< --------- FFmpeg 0.8 was cut here -------- 8< ---------
 2150 
 2151 2011-06-19 - fd2c0a5 - lavfi 2.23.0 - avfilter.h
 2152   Add layout negotiation fields and helper functions.
 2153 
 2154   In particular, add in_chlayouts and out_chlayouts to AVFilterLink,
 2155   and the functions:
 2156   avfilter_set_common_sample_formats()
 2157   avfilter_set_common_channel_layouts()
 2158   avfilter_all_channel_layouts()
 2159 
 2160 2011-06-19 - 527ca39 - lavfi 2.22.0 - AVFilterFormats
 2161   Change type of AVFilterFormats.formats from int * to int64_t *,
 2162   and update formats handling API accordingly.
 2163 
 2164   avfilter_make_format_list() still takes a int32_t array and converts
 2165   it to int64_t. A new function, avfilter_make_format64_list(), that
 2166   takes int64_t arrays has been added.
 2167 
 2168 2011-06-19 - 44f669e - lavfi 2.21.0 - vsink_buffer.h
 2169   Add video sink buffer and vsink_buffer.h public header.
 2170 
 2171 2011-06-12 - 9fdf772 - lavfi 2.18.0 - avcodec.h
 2172   Add avfilter_get_video_buffer_ref_from_frame() function in
 2173   libavfilter/avcodec.h.
 2174 
 2175 2011-06-12 - c535494 - lavfi 2.17.0 - avfiltergraph.h
 2176   Add avfilter_inout_alloc() and avfilter_inout_free() functions.
 2177 
 2178 2011-06-12 - 6119b23 - lavfi 2.16.0 - avfilter_graph_parse()
 2179   Change avfilter_graph_parse() signature.
 2180 
 2181 2011-06-23 - 686959e / 67e9ae1 - lavu 51.10.0 / 51.8.0 - attributes.h
 2182   Add av_printf_format().
 2183 
 2184 2011-06-16 - 2905e3f / 05e84c9, 2905e3f / 25de595 - lavf 53.4.0 / 53.2.0 - avformat.h
 2185   Add avformat_open_input and avformat_write_header().
 2186   Deprecate av_open_input_stream, av_open_input_file,
 2187   AVFormatParameters and av_write_header.
 2188 
 2189 2011-06-16 - 2905e3f / 7e83e1c, 2905e3f / dc59ec5 - lavu 51.9.0 / 51.7.0 - opt.h
 2190   Add av_opt_set_dict() and av_opt_find().
 2191   Deprecate av_find_opt().
 2192   Add AV_DICT_APPEND flag.
 2193 
 2194 2011-06-10 - 45fb647 / cb7c11c - lavu 51.6.0 - opt.h
 2195   Add av_opt_flag_is_set().
 2196 
 2197 2011-06-10 - c381960 - lavfi 2.15.0 - avfilter_get_audio_buffer_ref_from_arrays
 2198   Add avfilter_get_audio_buffer_ref_from_arrays() to avfilter.h.
 2199 
 2200 2011-06-09 - f9ecb84 / d9f80ea - lavu 51.8.0 - AVMetadata
 2201   Move AVMetadata from lavf to lavu and rename it to
 2202   AVDictionary -- new installed header dict.h.
 2203   All av_metadata_* functions renamed to av_dict_*.
 2204 
 2205 2011-06-07 - d552f61 / a6703fa - lavu 51.8.0 - av_get_bytes_per_sample()
 2206   Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
 2207   Deprecate av_get_bits_per_sample_fmt().
 2208 
 2209 2011-06-05 - f956924 / b39b062 - lavu 51.8.0 - opt.h
 2210   Add av_opt_free convenience function.
 2211 
 2212 2011-06-06 - 95a0242 - lavfi 2.14.0 - AVFilterBufferRefAudioProps
 2213   Remove AVFilterBufferRefAudioProps.size, and use nb_samples in
 2214   avfilter_get_audio_buffer() and avfilter_default_get_audio_buffer() in
 2215   place of size.
 2216 
 2217 2011-06-06 - 0bc2cca - lavu 51.6.0 - av_samples_alloc()
 2218   Switch nb_channels and nb_samples parameters order in
 2219   av_samples_alloc().
 2220 
 2221 2011-06-06 - e1c7414 - lavu 51.5.0 - av_samples_*
 2222   Change the data layout created by av_samples_fill_arrays() and
 2223   av_samples_alloc().
 2224 
 2225 2011-06-06 - 27bcf55 - lavfi 2.13.0 - vsrc_buffer.h
 2226   Make av_vsrc_buffer_add_video_buffer_ref() accepts an additional
 2227   flags parameter in input.
 2228 
 2229 2011-06-03 - e977ca2 - lavfi 2.12.0 - avfilter_link_free()
 2230   Add avfilter_link_free() function.
 2231 
 2232 2011-06-02 - 5ad38d9 - lavu 51.4.0 - av_force_cpu_flags()
 2233   Add av_cpu_flags() in libavutil/cpu.h.
 2234 
 2235 2011-05-28 - e71f260 - lavu 51.3.0 - pixdesc.h
 2236   Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
 2237   avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
 2238 
 2239 2011-05-25 - 39e4206 / 30315a8 - lavf 53.3.0 - avformat.h
 2240   Add fps_probe_size to AVFormatContext.
 2241 
 2242 2011-05-22 - 5ecdfd0 - lavf 53.2.0 - avformat.h
 2243   Introduce avformat_alloc_output_context2() and deprecate
 2244   avformat_alloc_output_context().
 2245 
 2246 2011-05-22 - 83db719 - lavfi 2.10.0 - vsrc_buffer.h
 2247   Make libavfilter/vsrc_buffer.h public.
 2248 
 2249 2011-05-19 - c000a9f - lavfi 2.8.0 - avcodec.h
 2250   Add av_vsrc_buffer_add_frame() to libavfilter/avcodec.h.
 2251 
 2252 2011-05-14 - 9fdf772 - lavfi 2.6.0 - avcodec.h
 2253   Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
 2254 
 2255 2011-05-18 - 75a37b5 / 64150ff - lavc 53.7.0 - AVCodecContext.request_sample_fmt
 2256   Add request_sample_fmt field to AVCodecContext.
 2257 
 2258 2011-05-10 - 59eb12f / 188dea1 - lavc 53.6.0 - avcodec.h
 2259   Deprecate AVLPCType and the following fields in
 2260   AVCodecContext: lpc_coeff_precision, prediction_order_method,
 2261   min_partition_order, max_partition_order, lpc_type, lpc_passes.
 2262   Corresponding FLAC encoder options should be used instead.
 2263 
 2264 2011-05-07 - 9fdf772 - lavfi 2.5.0 - avcodec.h
 2265   Add libavfilter/avcodec.h header and avfilter_copy_frame_props()
 2266   function.
 2267 
 2268 2011-05-07 - 18ded93 - lavc 53.5.0 - AVFrame
 2269   Add format field to AVFrame.
 2270 
 2271 2011-05-07 - 22333a6 - lavc 53.4.0 - AVFrame
 2272   Add width and height fields to AVFrame.
 2273 
 2274 2011-05-01 - 35fe66a - lavfi 2.4.0 - avfilter.h
 2275   Rename AVFilterBufferRefVideoProps.pixel_aspect to
 2276   sample_aspect_ratio.
 2277 
 2278 2011-05-01 - 77e9dee - lavc 53.3.0 - AVFrame
 2279   Add a sample_aspect_ratio field to AVFrame.
 2280 
 2281 2011-05-01 - 1ba5727 - lavc 53.2.0 - AVFrame
 2282   Add a pkt_pos field to AVFrame.
 2283 
 2284 2011-04-29 - 35ceaa7 - lavu 51.2.0 - mem.h
 2285   Add av_dynarray_add function for adding
 2286   an element to a dynamic array.
 2287 
 2288 2011-04-26 - d7e5aeb / bebe72f - lavu 51.1.0 - avutil.h
 2289   Add AVPictureType enum and av_get_picture_type_char(), deprecate
 2290   FF_*_TYPE defines and av_get_pict_type_char() defined in
 2291   libavcodec/avcodec.h.
 2292 
 2293 2011-04-26 - d7e5aeb / 10d3940 - lavfi 2.3.0 - avfilter.h
 2294   Add pict_type and key_frame fields to AVFilterBufferRefVideo.
 2295 
 2296 2011-04-26 - d7e5aeb / 7a11c82 - lavfi 2.2.0 - vsrc_buffer
 2297   Add sample_aspect_ratio fields to vsrc_buffer arguments
 2298 
 2299 2011-04-21 - 8772156 / 94f7451 - lavc 53.1.0 - avcodec.h
 2300   Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
 2301 
 2302 2011-04-15 - lavc 52.120.0 - avcodec.h
 2303   AVPacket structure got additional members for passing side information:
 2304     c407984 / 4de339e introduce side information for AVPacket
 2305     c407984 / 2d8591c make containers pass palette change in AVPacket
 2306 
 2307 2011-04-12 - lavf 52.107.0 - avio.h
 2308   Avio cleanup, part II - deprecate the entire URLContext API:
 2309     c55780d / 175389c add avio_check as a replacement for url_exist
 2310     9891004 / ff1ec0c add avio_pause and avio_seek_time as replacements
 2311             for _av_url_read_fseek/fpause
 2312     d4d0932 / cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
 2313             should be used instead.
 2314     c88caa5 / 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
 2315     c88caa5 / f87b1b3 rename open flags: URL_* -> AVIO_*
 2316     d4d0932 / f8270bb add avio_enum_protocols.
 2317     d4d0932 / 5593f03 deprecate URLProtocol.
 2318     d4d0932 / c486dad deprecate URLContext.
 2319     d4d0932 / 026e175 deprecate the typedef for URLInterruptCB
 2320     c88caa5 / 8e76a19 deprecate av_register_protocol2.
 2321     11d7841 / b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
 2322     11d7841 / 1305d93 deprecate av_url_read_seek
 2323     11d7841 / fa104e1 deprecate av_url_read_pause
 2324     434f248 / 727c7aa deprecate url_get_filename().
 2325     434f248 / 5958df3 deprecate url_max_packet_size().
 2326     434f248 / 1869ea0 deprecate url_get_file_handle().
 2327     434f248 / 32a97d4 deprecate url_filesize().
 2328     434f248 / e52a914 deprecate url_close().
 2329     434f248 / 58a48c6 deprecate url_seek().
 2330     434f248 / 925e908 deprecate url_write().
 2331     434f248 / dce3756 deprecate url_read_complete().
 2332     434f248 / bc371ac deprecate url_read().
 2333     434f248 / 0589da0 deprecate url_open().
 2334     434f248 / 62eaaea deprecate url_connect.
 2335     434f248 / 5652bb9 deprecate url_alloc.
 2336     434f248 / 333e894 deprecate url_open_protocol
 2337     434f248 / e230705 deprecate url_poll and URLPollEntry
 2338 
 2339 2011-04-08 - lavf 52.106.0 - avformat.h
 2340   Minor avformat.h cleanup:
 2341     d4d0932 / a9bf9d8 deprecate av_guess_image2_codec
 2342     d4d0932 / c3675df rename avf_sdp_create->av_sdp_create
 2343 
 2344 2011-04-03 - lavf 52.105.0 - avio.h
 2345   Large-scale renaming/deprecating of AVIOContext-related functions:
 2346     2cae980 / 724f6a0 deprecate url_fdopen
 2347     2cae980 / 403ee83 deprecate url_open_dyn_packet_buf
 2348     2cae980 / 6dc7d80 rename url_close_dyn_buf       -> avio_close_dyn_buf
 2349     2cae980 / b92c545 rename url_open_dyn_buf        -> avio_open_dyn_buf
 2350     2cae980 / 8978fed introduce an AVIOContext.seekable field as a replacement for
 2351             AVIOContext.is_streamed and url_is_streamed()
 2352     1caa412 / b64030f deprecate get_checksum()
 2353     1caa412 / 4c4427a deprecate init_checksum()
 2354     2fd41c9 / 4ec153b deprecate udp_set_remote_url/get_local_port
 2355     4fa0e24 / 933e90a deprecate av_url_read_fseek/fpause
 2356     4fa0e24 / 8d9769a deprecate url_fileno
 2357     0fecf26 / b7f2fdd rename put_flush_packet -> avio_flush
 2358     0fecf26 / 35f1023 deprecate url_close_buf
 2359     0fecf26 / 83fddae deprecate url_open_buf
 2360     0fecf26 / d9d86e0 rename url_fprintf -> avio_printf
 2361     0fecf26 / 59f65d9 deprecate url_setbufsize
 2362     6947b0c / 3e68b3b deprecate url_ferror
 2363     e8bb2e2 deprecate url_fget_max_packet_size
 2364     76aa876 rename url_fsize -> avio_size
 2365     e519753 deprecate url_fgetc
 2366     655e45e deprecate url_fgets
 2367     a2704c9 rename url_ftell -> avio_tell
 2368     e16ead0 deprecate get_strz() in favor of avio_get_str
 2369     0300db8,2af07d3 rename url_fskip -> avio_skip
 2370     6b4aa5d rename url_fseek -> avio_seek
 2371     61840b4 deprecate put_tag
 2372     22a3212 rename url_fopen/fclose -> avio_open/close.
 2373     0ac8e2b deprecate put_nbyte
 2374     77eb550 rename put_byte          -> avio_w8
 2375                    put_[b/l]e<type>  -> avio_w[b/l]<type>
 2376                    put_buffer        -> avio_write
 2377     b7effd4 rename get_byte          -> avio_r8,
 2378                    get_[b/l]e<type>  -> avio_r[b/l]<type>
 2379                    get_buffer        -> avio_read
 2380     b3db9ce deprecate get_partial_buffer
 2381     8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
 2382 
 2383 2011-03-25 - 27ef7b1 / 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
 2384   Add audio_service_type field to AVCodecContext.
 2385 
 2386 2011-03-17 - e309fdc - lavu 50.40.0 - pixfmt.h
 2387   Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
 2388 
 2389 2011-03-02 - 863c471 - lavf  52.103.0 - av_pkt_dump2, av_pkt_dump_log2
 2390   Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
 2391   source stream timebase for outputting timestamps. Deprecate
 2392   av_pkt_dump and av_pkt_dump_log.
 2393 
 2394 2011-02-20 - e731b8d - lavf  52.102.0 - avio.h
 2395   * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
 2396               original, and move it to a private header so it is no longer
 2397               part of our public API. Instead, use av_alloc_put_byte().
 2398   * ae628ec - rename ByteIOContext to AVIOContext.
 2399 
 2400 2011-02-16 - 09d171b - lavf  52.101.0 - avformat.h
 2401                        lavu  52.39.0  - parseutils.h
 2402   * 610219a - Add av_ prefix to dump_format().
 2403   * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
 2404   * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
 2405 
 2406 2011-02-15 - lavu 52.38.0 - merge libavcore
 2407   libavcore is merged back completely into libavutil
 2408 
 2409 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
 2410   Add vbv_delay field to AVCodecContext
 2411 
 2412 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
 2413   Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
 2414 
 2415 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
 2416   Add sample_aspect_ratio field to AVFilterLink.
 2417 
 2418 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
 2419   Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
 2420 
 2421 2011-02-09 - c0b102c - lavc 52.112.0 - avcodec_thread_init()
 2422   Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
 2423   set thread_count before calling avcodec_open.
 2424 
 2425 2011-02-09 - 37b00b4 - lavc 52.111.0 - threading API
 2426   Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
 2427   release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
 2428   Add thread_type and active_thread_type fields to AVCodecContext.
 2429 
 2430 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
 2431   Add av_probe_input_buffer() to avformat.h for probing format from a
 2432   ByteIOContext.
 2433 
 2434 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
 2435   Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
 2436 
 2437 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
 2438   Add avformat_free_context() in avformat.h.
 2439 
 2440 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
 2441   Add CODEC_ID_PRORES to avcodec.h.
 2442 
 2443 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
 2444   Add defines for H.264 * Constrained Baseline and Intra profiles
 2445 
 2446 2011-02-02 - lavf 52.95.0
 2447   * 50196a9 - add a new installed header version.h.
 2448   * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
 2449     avio_{put,get}_str* functions.  Deprecate corresponding semi-public
 2450     {put,get}_str*.
 2451 
 2452 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
 2453   Make av_dlog public.
 2454 
 2455 2011-01-31 - 7b3ea55 - lavfi 1.76.0 - vsrc_buffer
 2456   Add sample_aspect_ratio fields to vsrc_buffer arguments
 2457 
 2458 2011-01-31 - 910b5b8 - lavfi 1.75.0 - AVFilterLink sample_aspect_ratio
 2459   Add sample_aspect_ratio field to AVFilterLink.
 2460 
 2461 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
 2462   Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
 2463 
 2464 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy()
 2465   Add av_metadata_copy() in avformat.h.
 2466 
 2467 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque
 2468   Deprecate reordered_opaque in favor of pkt_pts/dts.
 2469 
 2470 2011-01-07 - 1919fea - lavc 52.106.0 - pkt_dts
 2471   Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
 2472   to not mess up dts.
 2473 
 2474 2011-01-07 - 393cbb9 - lavc 52.105.0 - pkt_pts
 2475   Add pkt_pts to AVFrame.
 2476 
 2477 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name()
 2478   Add av_get_profile_name to libavcodec/avcodec.h.
 2479 
 2480 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
 2481   Add AV_PERM_NEG_LINESIZES in avfilter.h.
 2482 
 2483 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream()
 2484   Add av_find_best_stream to libavformat/avformat.h.
 2485 
 2486 2010-12-27 - 107a7e3 - lavf 52.90.0
 2487   Add AVFMT_NOSTREAMS flag for formats with no streams,
 2488   like e.g. text metadata.
 2489 
 2490 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h
 2491   Add functions av_file_map() and av_file_unmap() in file.h.
 2492 
 2493 2010-12-19 - 0bc55f5 - lavu 50.35.0 - error.h
 2494   Add "not found" error codes:
 2495   AVERROR_DEMUXER_NOT_FOUND
 2496   AVERROR_MUXER_NOT_FOUND
 2497   AVERROR_DECODER_NOT_FOUND
 2498   AVERROR_ENCODER_NOT_FOUND
 2499   AVERROR_PROTOCOL_NOT_FOUND
 2500   AVERROR_FILTER_NOT_FOUND
 2501   AVERROR_BSF_NOT_FOUND
 2502   AVERROR_STREAM_NOT_FOUND
 2503 
 2504 2010-12-09 - c61cdd0 - lavcore 0.16.0 - avcore.h
 2505   Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
 2506   avcodec.h to avcore.h.
 2507 
 2508 2010-12-04 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
 2509   Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
 2510 
 2511 2010-12-04 - bb4afa1 - lavu 50.34.0 - av_get_pix_fmt_string()
 2512   Deprecate avcodec_pix_fmt_string() in favor of
 2513   pixdesc.h/av_get_pix_fmt_string().
 2514 
 2515 2010-12-04 - 4da12e3 - lavcore 0.15.0 - av_image_alloc()
 2516   Add av_image_alloc() to libavcore/imgutils.h.
 2517 
 2518 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter()
 2519   Add function avfilter_graph_create_filter() in avfiltergraph.h.
 2520 
 2521 2010-11-25 - 4723bc2 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
 2522   Add function avfilter_get_video_buffer_ref_from_arrays() in
 2523   avfilter.h.
 2524 
 2525 2010-11-21 - 176a615 - lavcore 0.14.0 - audioconvert.h
 2526   Add a public audio channel API in audioconvert.h, and deprecate the
 2527   corresponding functions in libavcodec:
 2528   avcodec_get_channel_name()
 2529   avcodec_get_channel_layout()
 2530   avcodec_get_channel_layout_string()
 2531   avcodec_channel_layout_num_channels()
 2532   and the CH_* macros defined in libavcodec/avcodec.h.
 2533 
 2534 2010-11-21 - 6bfc268 - lavf 52.85.0 - avformat.h
 2535   Add av_append_packet().
 2536 
 2537 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h
 2538   Add av_grow_packet().
 2539 
 2540 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h
 2541   Add av_parse_color() declared in libavcore/parseutils.h.
 2542 
 2543 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext
 2544   Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
 2545   fields.
 2546 
 2547 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h
 2548   Make avfiltergraph.h public.
 2549 
 2550 2010-11-13 - 4fcbb2a - lavfi 1.61.0 - avfiltergraph.h
 2551   Remove declarations from avfiltergraph.h for the functions:
 2552   avfilter_graph_check_validity()
 2553   avfilter_graph_config_links()
 2554   avfilter_graph_config_formats()
 2555   which are now internal.
 2556   Use avfilter_graph_config() instead.
 2557 
 2558 2010-11-08 - d2af720 - lavu 50.33.0 - eval.h
 2559   Deprecate functions:
 2560   av_parse_and_eval_expr(),
 2561   av_parse_expr(),
 2562   av_eval_expr(),
 2563   av_free_expr(),
 2564   in favor of the functions:
 2565   av_expr_parse_and_eval(),
 2566   av_expr_parse(),
 2567   av_expr_eval(),
 2568   av_expr_free().
 2569 
 2570 2010-11-08 - 24de0ed - lavfi 1.59.0 - avfilter_free()
 2571   Rename avfilter_destroy() to avfilter_free().
 2572   This change breaks libavfilter API/ABI.
 2573 
 2574 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h
 2575   Remove graphparser.h header, move AVFilterInOut and
 2576   avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
 2577 
 2578 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut
 2579   Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
 2580   This change breaks libavfilter API.
 2581 
 2582 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free()
 2583   Rename avfilter_graph_destroy() to avfilter_graph_free().
 2584   This change breaks libavfilter API/ABI.
 2585 
 2586 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc()
 2587   Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
 2588 
 2589 2010-11-02 - 6f84cd1 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
 2590   Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
 2591   deprecate av_get_bits_per_sample_format().
 2592 
 2593 2010-11-02 - d63e456 - lavcore 0.11.0 - samplefmt.h
 2594   Add sample format functions in libavcore/samplefmt.h:
 2595   av_get_sample_fmt_name(),
 2596   av_get_sample_fmt(),
 2597   av_get_sample_fmt_string(),
 2598   and deprecate the corresponding libavcodec/audioconvert.h functions:
 2599   avcodec_get_sample_fmt_name(),
 2600   avcodec_get_sample_fmt(),
 2601   avcodec_sample_fmt_string().
 2602 
 2603 2010-11-02 - 262d1c5 - lavcore 0.10.0 - samplefmt.h
 2604   Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
 2605   SampleFormat.
 2606 
 2607 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config()
 2608   Add the function avfilter_graph_config() in avfiltergraph.h.
 2609 
 2610 2010-10-15 - 03700d3 - lavf 52.83.0 - metadata API
 2611   Change demuxers to export metadata in generic format and
 2612   muxers to accept generic format. Deprecate the public
 2613   conversion API.
 2614 
 2615 2010-10-10 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base
 2616   Add time_base field to AVFilterLink.
 2617 
 2618 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string()
 2619   Move av_set_options_string() from libavfilter/parseutils.h to
 2620   libavutil/opt.h.
 2621 
 2622 2010-09-27 - acc0490 - lavfi 1.47.0 - AVFilterLink
 2623   Make the AVFilterLink fields srcpad and dstpad store the pointers to
 2624   the source and destination pads, rather than their indexes.
 2625 
 2626 2010-09-27 - 372e288 - lavu 50.30.0 - av_get_token()
 2627   Move av_get_token() from libavfilter/parseutils.h to
 2628   libavutil/avstring.h.
 2629 
 2630 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h
 2631   Add the functions sws_alloc_context() and sws_init_context().
 2632 
 2633 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h
 2634   Move libavcodec/opt.h to libavutil/opt.h.
 2635 
 2636 2010-09-24 - 1c1c80f - lavu 50.28.0 - av_log_set_flags()
 2637   Default of av_log() changed due to many problems to the old no repeat
 2638   detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
 2639   enabling it for your app!.
 2640 
 2641 2010-09-24 - f66eb58 - lavc 52.90.0 - av_opt_show2()
 2642   Deprecate av_opt_show() in favor or av_opt_show2().
 2643 
 2644 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount()
 2645   Add av_popcount() to libavutil/common.h.
 2646 
 2647 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags()
 2648   Add av_get_cpu_flags().
 2649 
 2650 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy()
 2651   Add av_image_copy().
 2652 
 2653 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane()
 2654   Add av_image_copy_plane().
 2655 
 2656 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h
 2657   Adopt hierarchical scheme for the imgutils.h function names,
 2658   deprecate the old names.
 2659 
 2660 2010-09-04 - 7160bb7 - lavu 50.25.0 - AV_CPU_FLAG_*
 2661   Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
 2662   of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
 2663 
 2664 2010-08-26 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout()
 2665   Add avcodec_get_channel_layout() in audioconvert.h.
 2666 
 2667 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
 2668   Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
 2669 
 2670 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep()
 2671   Add av_fill_image_max_pixstep() in imgutils.h.
 2672 
 2673 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE()
 2674   Add the AV_NE macro.
 2675 
 2676 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework
 2677   Implement AVFilterBufferRefAudioProps struct for audio properties,
 2678   get_audio_buffer(), filter_samples() functions and related changes.
 2679 
 2680 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize()
 2681   Add av_get_image_linesize() in imgutils.h.
 2682 
 2683 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef
 2684   Resize data and linesize arrays in AVFilterBufferRef to 8.
 2685 
 2686   This change breaks libavfilter API/ABI.
 2687 
 2688 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy()
 2689   Add av_picture_data_copy in avcodec.h.
 2690 
 2691 2010-08-11 - 84c0386 - lavfi 1.33.0 - avfilter_open()
 2692   Change avfilter_open() signature:
 2693   AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
 2694   int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
 2695 
 2696   This change breaks libavfilter API/ABI.
 2697 
 2698 2010-08-11 - cc80caf - lavfi 1.32.0 - AVFilterBufferRef
 2699   Add a type field to AVFilterBufferRef, and move video specific
 2700   properties to AVFilterBufferRefVideoProps.
 2701 
 2702   This change breaks libavfilter API/ABI.
 2703 
 2704 2010-08-07 - 5d4890d - lavfi 1.31.0 - AVFilterLink
 2705   Rename AVFilterLink fields:
 2706   AVFilterLink.srcpic    ->  AVFilterLink.src_buf
 2707   AVFilterLink.cur_pic   ->  AVFilterLink.cur_buf
 2708   AVFilterLink.outpic    ->  AVFilterLink.out_buf
 2709 
 2710 2010-08-07 - 7fce481 - lavfi 1.30.0
 2711   Rename functions and fields:
 2712   avfilter_(un)ref_pic       -> avfilter_(un)ref_buffer
 2713   avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
 2714   AVFilterBufferRef.pic      -> AVFilterBufferRef.buffer
 2715 
 2716 2010-08-07 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef
 2717   Rename AVFilterPicRef to AVFilterBufferRef.
 2718 
 2719 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer
 2720   Move format field from AVFilterBuffer to AVFilterPicRef.
 2721 
 2722 2010-08-06 - bf176f5 - lavcore 0.3.0 - av_check_image_size()
 2723   Deprecate avcodec_check_dimensions() in favor of the function
 2724   av_check_image_size() defined in libavcore/imgutils.h.
 2725 
 2726 2010-07-30 - 56b5e9d - lavfi 1.27.0 - AVFilterBuffer
 2727   Increase size of the arrays AVFilterBuffer.data and
 2728   AVFilterBuffer.linesize from 4 to 8.
 2729 
 2730   This change breaks libavfilter ABI.
 2731 
 2732 2010-07-29 - e7bd48a - lavcore 0.2.0 - imgutils.h
 2733   Add functions av_fill_image_linesizes() and
 2734   av_fill_image_pointers(), declared in libavcore/imgutils.h.
 2735 
 2736 2010-07-27 - 126b638 - lavcore 0.1.0 - parseutils.h
 2737   Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
 2738   defined in libavcodec in favor of the newly added functions
 2739   av_parse_video_size() and av_parse_video_rate() declared in
 2740   libavcore/parseutils.h.
 2741 
 2742 2010-07-23 - 4485247 - lavu 50.23.0 - mathematics.h
 2743   Add the M_PHI constant definition.
 2744 
 2745 2010-07-22 - bdab614 - lavfi 1.26.0 - media format generalization
 2746   Add a type field to AVFilterLink.
 2747 
 2748   Change the field types:
 2749   enum PixelFormat format   -> int format   in AVFilterBuffer
 2750   enum PixelFormat *formats -> int *formats in AVFilterFormats
 2751   enum PixelFormat *format  -> int format   in AVFilterLink
 2752 
 2753   Change the function signatures:
 2754   AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
 2755   AVFilterFormats *avfilter_make_format_list(const int *fmts);
 2756 
 2757   int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
 2758   int avfilter_add_format    (AVFilterFormats **avff, int fmt);
 2759 
 2760   AVFilterFormats *avfilter_all_colorspaces(void); ->
 2761   AVFilterFormats *avfilter_all_formats    (enum AVMediaType type);
 2762 
 2763   This change breaks libavfilter API/ABI.
 2764 
 2765 2010-07-21 - aac6ca6 - lavcore 0.0.0
 2766   Add libavcore.
 2767 
 2768 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer
 2769   Remove w and h fields from AVFilterBuffer.
 2770 
 2771 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer
 2772   Rename AVFilterPic to AVFilterBuffer.
 2773 
 2774 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip()
 2775   Make url_fskip() return an int error code instead of void.
 2776 
 2777 2010-07-11 - 23940f1 - lavc 52.83.0
 2778   Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
 2779   Add AVLPCType enum.
 2780   Deprecate AVCodecContext.use_lpc.
 2781 
 2782 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free()
 2783   Add a function for free the contents of a AVSubtitle generated by
 2784   avcodec_decode_subtitle.
 2785 
 2786 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h
 2787   Make the bswap.h and intreadwrite.h API public.
 2788 
 2789 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h
 2790   Rename read/write_line() to av_read/write_image_line().
 2791 
 2792 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props()
 2793   Add avfilter_copy_picref_props().
 2794 
 2795 2010-07-03 - 2d525ef - lavc 52.79.0
 2796   Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
 2797   FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
 2798 
 2799 2010-07-02 - 89eec74 - lavu 50.20.0 - lfg.h
 2800   Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
 2801   lfg.h.
 2802 
 2803 2010-06-28 - a52e2c3 - lavfi 1.20.1 - av_parse_color()
 2804   Extend av_parse_color() syntax, make it accept an alpha value specifier and
 2805   set the alpha value to 255 by default.
 2806 
 2807 2010-06-22 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
 2808   Add priv_data_size and priv_data_class to URLProtocol.
 2809 
 2810 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect()
 2811   Add url_alloc() and url_connect().
 2812 
 2813 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2()
 2814   Add av_register_protocol2(), deprecating av_register_protocol().
 2815 
 2816 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod()
 2817   Add av_compare_mod() to libavutil/mathematics.h.
 2818 
 2819 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API
 2820   Make the eval API public.
 2821 
 2822 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE
 2823   Add AV_BASE64_SIZE() macro.
 2824 
 2825 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
 2826   Add av_get_codec_tag_string().
 2827 
 2828 
 2829 -------- 8< --------- FFmpeg 0.6 was cut here -------- 8< ---------
 2830 
 2831 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
 2832   Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
 2833 
 2834 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
 2835   Add CODEC_CAP_EXPERIMENTAL flag.
 2836   NOTE: this was backported to 0.6
 2837 
 2838 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed()
 2839   Add av_get_random_seed().
 2840 
 2841 2010-05-18 - 796ac23 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
 2842   Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
 2843   NOTE: this was backported to 0.6
 2844 
 2845 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
 2846   Add interlaced and top_field_first fields to AVFilterPicRef.
 2847 
 2848 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
 2849   Add av_probe_input_format2 to API, it allows ignoring probe
 2850   results below given score and returns the actual probe score.
 2851 
 2852 2010-04-01 - 3dd6180 - lavf 52.61.0 - metadata API
 2853   Add a flag for av_metadata_set2() to disable overwriting of
 2854   existing tags.
 2855 
 2856 2010-04-01 - 0fb49b5 - lavc 52.66.0
 2857   Add avcodec_get_edge_width().
 2858 
 2859 2010-03-31 - d103218 - lavc 52.65.0
 2860   Add avcodec_copy_context().
 2861 
 2862 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext()
 2863   Make av_match_ext() public.
 2864 
 2865 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType
 2866   Move AVMediaType enum from libavcodec to libavutil.
 2867 
 2868 2010-03-31 - 72415b2 - lavc 52.64.0 - AVMediaType
 2869   Define AVMediaType enum, and use it instead of enum CodecType, which
 2870   is deprecated and will be dropped at the next major bump.
 2871 
 2872 2010-03-25 - 8795823 - lavu 50.13.0 - av_strerror()
 2873   Implement av_strerror().
 2874 
 2875 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init()
 2876   Support DCT-I and DST-I.
 2877 
 2878 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime
 2879   Add AVFormatContext.start_time_realtime field.
 2880 
 2881 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos
 2882   Add AVFilterPicRef.pos field.
 2883 
 2884 2010-03-13 - 60c144f - lavu 50.12.0 - error.h
 2885   Move error code definitions from libavcodec/avcodec.h to
 2886   the new public header libavutil/error.h.
 2887 
 2888 2010-03-07 - c709483 - lavc 52.56.0 - avfft.h
 2889   Add public FFT interface.
 2890 
 2891 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr()
 2892   Add av_stristr().
 2893 
 2894 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate()
 2895   Add av_tree_enumerate().
 2896 
 2897 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts()
 2898   Add av_compare_ts().
 2899 
 2900 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients()
 2901   Add sws_getCoefficients().
 2902 
 2903 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API
 2904   Add a list of generic tag names, change 'author' -> 'artist',
 2905   'year' -> 'date'.
 2906 
 2907 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt()
 2908   Add av_get_pix_fmt().
 2909 
 2910 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale()
 2911   Change constness attributes of sws_scale() parameters.
 2912 
 2913 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links()
 2914   Add a log_ctx parameter to avfilter_graph_config_links().
 2915 
 2916 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put()
 2917   Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
 2918 
 2919 2010-01-06 - c1d662f - lavfi 1.14.0 - avfilter_add_colorspace()
 2920   Change the avfilter_add_colorspace() signature, make it accept an
 2921   (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
 2922 
 2923 2010-01-03 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace()
 2924   Add avfilter_add_colorspace().
 2925 
 2926 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext()
 2927   Add av_match_ext(), it should be used in place of match_ext().
 2928 
 2929 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format()
 2930   Add av_guess_format(), it should be used in place of guess_format().
 2931 
 2932 2009-12-13 - a181981 - lavf 52.43.0 - metadata API
 2933   Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
 2934   AV_METADATA_DONT_STRDUP_VAL.
 2935 
 2936 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API
 2937   Add av_d2str().
 2938 
 2939 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream
 2940   Add avg_frame_rate.
 2941 
 2942 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next()
 2943   Introduce the av_bmg_next() function.
 2944 
 2945 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice()
 2946   Add a slice_dir parameter to avfilter_draw_slice().
 2947 
 2948 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter
 2949   Remove the next field from AVFilter, this is not anymore required.
 2950 
 2951 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next()
 2952   Introduce the avfilter_next() function.
 2953 
 2954 2009-11-25 - 86a60fa - lavfi 1.9.0 - avfilter_register()
 2955   Change the signature of avfilter_register() to make it return an
 2956   int. This is required since now the registration operation may fail.
 2957 
 2958 2009-11-25 - 74a0059 - lavu 50.5.0 - pixdesc.h API
 2959   Make the pixdesc.h API public.
 2960 
 2961 2009-10-27 - 243110f - lavfi 1.5.0 - AVFilter.next
 2962   Add a next field to AVFilter, this is used for simplifying the
 2963   registration and management of the registered filters.
 2964 
 2965 2009-10-23 - cccd292 - lavfi 1.4.1 - AVFilter.description
 2966   Add a description field to AVFilter.
 2967 
 2968 2009-10-19 - 6b5dc05 - lavfi 1.3.0 - avfilter_make_format_list()
 2969   Change the interface of avfilter_make_format_list() from
 2970   avfilter_make_format_list(int n, ...) to
 2971   avfilter_make_format_list(enum PixelFormat *pix_fmts).
 2972 
 2973 2009-10-18 - 0eb4ff9 - lavfi 1.0.0 - avfilter_get_video_buffer()
 2974   Make avfilter_get_video_buffer() recursive and add the w and h
 2975   parameters to it.
 2976 
 2977 2009-10-07 - 46c40e4 - lavfi 0.5.1 - AVFilterPic
 2978   Add w and h fields to AVFilterPic.
 2979 
 2980 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size
 2981   This is now an unsigned int instead of a signed int.
 2982 
 2983 2009-06-19 - a4276ba - lavc 52.32.0 - AVSubtitle.pts
 2984   Add a pts field to AVSubtitle which gives the subtitle packet pts
 2985   in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
 2986   not work right without this.
 2987 
 2988 2009-06-03 - 8f3f2e0 - lavc 52.30.2 - AV_PKT_FLAG_KEY
 2989   PKT_FLAG_KEY has been deprecated and will be dropped at the next
 2990   major version. Use AV_PKT_FLAG_KEY instead.
 2991 
 2992 2009-06-01 - f988ce6 - lavc 52.30.0 - av_lockmgr_register()
 2993   av_lockmgr_register() can be used to register a callback function
 2994   that lavc (and in the future, libraries that depend on lavc) can use
 2995   to implement mutexes. The application should provide a callback function
 2996   that implements the AV_LOCK_* operations described in avcodec.h.
 2997   When the lock manager is registered, FFmpeg is guaranteed to behave
 2998   correctly in a multi-threaded application.
 2999 
 3000 2009-04-30 - ce1d9c8 - lavc 52.28.0 - av_free_packet()
 3001   av_free_packet() is no longer an inline function. It is now exported.
 3002 
 3003 2009-04-11 - 80d403f - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
 3004   Please use NULL instead. This has been supported since r16506
 3005   (lavf > 52.23.1, lavc > 52.10.0).
 3006 
 3007 2009-04-07 - 7a00bba - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
 3008   The old decoding functions are deprecated, all new code should use the
 3009   new functions avcodec_decode_video2(), avcodec_decode_audio3() and
 3010   avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
 3011   argument instead of a const uint8_t *buf / int buf_size pair.
 3012 
 3013 2009-04-03 - 7b09db3 - lavu 50.3.0 - av_fifo_space()
 3014   Introduce the av_fifo_space() function.
 3015 
 3016 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket
 3017   Move AVPacket declaration from libavformat/avformat.h to
 3018   libavcodec/avcodec.h.
 3019 
 3020 2009-03-22 - 6e08ca9 - lavu 50.2.0 - RGB32 pixel formats
 3021   Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
 3022   PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
 3023   Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
 3024   PIX_FMT_BGR32_1 are now macros.
 3025   avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
 3026   Re-sort the enum PixelFormat list accordingly.
 3027   This change breaks API/ABI backward compatibility.
 3028 
 3029 2009-03-22 - f82674e - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
 3030   Add the enum PixelFormat values:
 3031   PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
 3032   PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
 3033 
 3034 2009-03-21 - ee6624e - lavu 50.0.0  - av_random*
 3035   The Mersenne Twister PRNG implemented through the av_random* functions
 3036   was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
 3037   instead.
 3038 
 3039 2009-03-08 - 41dd680 - lavu 50.0.0  - AVFifoBuffer
 3040   av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
 3041   and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
 3042   and av_fifo_realloc2.
 3043   In addition, the order of the function arguments of av_fifo_generic_read
 3044   was changed to match av_fifo_generic_write.
 3045   The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
 3046   applications, they may not use sizeof() or directly access members.
 3047 
 3048 2009-03-01 - ec26457 - lavf 52.31.0 - Generic metadata API
 3049   Introduce a new metadata API (see av_metadata_get() and friends).
 3050   The old API is now deprecated and should not be used anymore. This especially
 3051   includes the following structure fields:
 3052     - AVFormatContext.title
 3053     - AVFormatContext.author
 3054     - AVFormatContext.copyright
 3055     - AVFormatContext.comment
 3056     - AVFormatContext.album
 3057     - AVFormatContext.year
 3058     - AVFormatContext.track
 3059     - AVFormatContext.genre
 3060     - AVStream.language
 3061     - AVStream.filename
 3062     - AVProgram.provider_name
 3063     - AVProgram.name
 3064     - AVChapter.title