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Member "libav-12.3/Changelog" (12 Feb 2018, 43074 Bytes) of package /linux/misc/libav-12.3.tar.gz:


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    1 Entries are sorted chronologically from oldest to youngest within each release,
    2 releases are sorted from youngest to oldest.
    3 
    4 version 12.3:
    5 
    6  - pictor: Correctly check frame dimension (CVE-2017-7862)
    7  - smacker: add sanity check for length in smacker_decode_tree() (CVE-2017-16803)
    8  - smacker: limit recursion depth of smacker_decode_bigtree
    9  - cmdutils: update copyright year to 2018
   10  - matroskadec: allow RealAudio/Cook/Sipro streams of flavor 0 (bug/1055)
   11  - avconv: only retry decoding on actual decoding errors (bug/1089)
   12  - vc1: skip motion compensation when data for last picture is invalid (bug/1101)
   13  - avcodec/vc1dec: fix mby_start for interlaced content (bug/1100)
   14 
   15 version 12.2:
   16 
   17  - mpegvideo_motion: Handle edge emulation even without unrestricted_mv (bug/962, bug/1060)
   18  - smacker: Check that the data size is a multiple of a sample vector (CVE-2015-8365)
   19  - build: Add an option for passing linker flags to the shared library build
   20  - configure: Simplify and fix libxcb check
   21  - openssl: Support version 1.1.0.
   22  - rtmpdh: Don't use the OpenSSL DH struct
   23  - dvbsubdec: Fixed segfault when decoding subtitles
   24  - doc: Drop the legacy symlink to README
   25  - dfa: Disallow odd width/height and add proper bounds check for DDS1 chunks (CVE-2017-9992)
   26  - rmdec: don't ignore the return value of av_get_packet()
   27  - caf: add an Opus tag
   28  - h264dec: Fix mix of lossless and lossy MBs decoding
   29  - h264_cabac: Fix CABAC+8x8dct in 4:4:4
   30  - h264dec: fix Lossless Decoding (Profile 244) for 8x8 Intra Prediction
   31  - h264dec: track the last seen value of x264_build
   32  - h264dec: use a large enough field for reference list modification values
   33  - yadif: Account for the buffer alignment while processing the frame edges (bug/1031)
   34  - mov: log and return early on non-positive stsd entry counts
   35  - mov: Do not set stsd_count if mov_read_stsd() fails
   36  - mov: move stsd finalization to an appropriate place (bug/1072)
   37  - arm: Fix SIGBUS on ARM when compiled with binutils 2.29
   38  - smacker: return meaningful error codes on failure
   39  - smacker: fix integer overflow with pts_inc (bug/1073)
   40 
   41 version 12.1:
   42 
   43  - vaapi_h264: fix RefPicList[] field flags.
   44  - libilbc: support for latest git of libilbc
   45  - libopusdec: default to stereo for invalid number of channels
   46  - avpacket: fix leak on realloc in av_packet_add_side_data()
   47  - mpegvideo: Return correct coded frame sizes from parser
   48  - hwcontext_vaapi: Don't abort on failing to allocate from a fixed-size pool
   49  - mov: Update colr values
   50  - avconv: Fix the audio next dts computation
   51  - mss2: only use error correction for matching block counts
   52  - h264_slice: Wait for refs to be available before we use them in error concealment
   53  - hevc: decouple calling get_format() from exporting the SPS parameters
   54  - hevcdec: do not set decoder-global SPS prematurely
   55  - mov: fix a possible invalid read in mov_read_mac_string() (bug/972, bug/1003)
   56  - mpegvideo_parser: avoid signed overflow in bitrate calculation (bug/981)
   57  - mpeg12dec: avoid signed overflow in bitrate calculation (bug/981)
   58  - mpeg12dec: move setting first_field to mpeg_field_start() (bug/999)
   59  - h264dec: make sure to only end a field if it has been started (bug/977, bug/978, bug/992)
   60  - matroskadec: fix SRT subtitle duration
   61  - http: Check for negative chunk sizes
   62  - cmdutils: update copyright year to 2017
   63  - matroskadec: make sure not to leave EbmlBin in an inconsistent state (bug/1001)
   64  - asfdec: Use the ASF stream count when iterating
   65  - aac: Validate the sbr sample rate before using the value (bug/1027)
   66  - mov: Do not try to parse multiple stsd for the same track (bug/1017)
   67  - vf_fade: Make sure to not miss the last lines of a frame
   68  - asfdec: Account for different Format Data sizes (bug/1020)
   69  - asfdec: fix reading files larger than 2GB
   70  - h264dec: fix dropped initial SEI recovery point
   71  - rtmppkt: Check for packet size mismatches
   72  - apetag: fix flag value to signal footer presence
   73  - apetag: account for header size if present when returning the start position
   74  - lavc: make sure not to return EAGAIN from codecs
   75  - h264dec: initialize field_started to 0 on each decode call (bug/1019)
   76  - h2645_parse: use the bytestream2 API for packet splitting (bug/1002)
   77  - h264_cavlc: check the value of run_before (bug/1000)
   78  - nsvdec: don't ignore the return value of av_get_packet() (bug/1039)
   79  - mpeg4videodec: raise an error if sprite_trajectory.table is NULL (bug/1012)
   80  - dca: Validate the channel map (bug/1016)
   81  - avformat: Free the internal codec context at the end
   82  - dca: Account for lfe when checking for the channel count (bug/1037)
   83  - flv: Validate the packet size (bug/1041)
   84  - mjpeg: Report non-3 component rgb lossless as not supported (bug/1043)
   85  - mm: Skip unexpected audio packets (bug/1046)
   86  - vc1dec: raise an error if sprite picture data is missing (bug/1013)
   87  - avplay: Do not try to allocate new frames when the player is closing (bug/1052)
   88  - avprobe: Handle unknown values for the color description (bug/1040)
   89  - aacsbr: Turnoff in the event of over read. (bug/1047)
   90  - h264_refs: validate the SPS pointer in ff_h264_execute_ref_pic_marking() (bug/1036)
   91 
   92 version 12:
   93 - aliases and defaults for Ogg subtypes (opus, spx)
   94 - HEVC/H.265 RTP payload format (draft v6) packetizer and depacketizer
   95 - avplay now exits by default at the end of playback
   96 - XCB-based screen-grabber
   97 - creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
   98 - H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
   99 - RTP/mpegts muxer
  100 - VP8 in Ogg demuxing
  101 - OpenH264 encoder wrapper
  102 - Support DNx100 (960x720@8)
  103 - Direct3D11-accelerated decoding
  104 - DXVA2-accelerated HEVC decoding
  105 - AAC ELD 480 decoding
  106 - Intel QSV-accelerated H.264 decoding
  107 - DSS SP decoder and DSS demuxer
  108 - RTP depacketizer for AC3 payload format (RFC 4184)
  109 - RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
  110 - RTP depacketizer for DV (RFC 6469)
  111 - Canopus HQX decoder
  112 - RTP depacketization of T.140 text (RFC 4103)
  113 - VP9 RTP payload format (draft 0) experimental depacketizer
  114 - TDSC decoder
  115 - DTS lossless extension (XLL) decoding (not lossless, disabled by default)
  116 - Intel QSV-accelerated H.264 encoding
  117 - MMAL-accelerated H.264 decoding
  118 - DTS decoding through libdcadec
  119 - Canopus HQ/HQA decoder
  120 - Automatically rotate videos based on metadata in avconv
  121 - improved Quickdraw compatibility
  122 - NVIDIA NVENC-accelerated H.264 and HEVC encoding support
  123 - Multipart JPEG demuxer
  124 - Support the extended vp9 profiles in the libvpx wrapper
  125 - Hap decoder and encoder
  126 - DirectDraw Surface image/texture decoder
  127 - rewritten ASF demuxer
  128 - Go2Meeting decoding support
  129 - Intel QSV-accelerated MPEG-2 video and HEVC encoding
  130 - bitstream filter for converting HEVC from MP4 to Annex B
  131 - Intel QSV-accelerated MPEG-2 video and HEVC decoding
  132 - Support DNx100 (1440x1080@8)
  133 - DXV decoding
  134 - Screenpresso SPV1 decoding
  135 - zero-copy Intel QSV transcoding in avconv
  136 - libkvazaar HEVC encoder
  137 - innoHeim/Rsupport Screen Capture Codec decoder
  138 - support encoding 16-bit RLE SGI images
  139 - support Apple AVFoundation video capture
  140 - G.723.1 muxer and encoder
  141 - compressed SWF
  142 - VAAPI-accelerated format conversion and scaling
  143 - libnpp/CUDA-accelerated format conversion and scaling
  144 - VAAPI-accelerate H.264/HEVC/MJPEG encoding
  145 - Generic OpenMAX IL encoder with support for Raspberry Pi
  146 - MMAL-accelerated MPEG-2 and VC-1 decoding
  147 - G.729 raw demuxer
  148 - MagicYUV decoder
  149 - Duck TrueMotion 2.0 Real Time decoder
  150 - Intel QSV video scaling and deinterlacing filter
  151 - Support MOV with multiple sample description tables
  152 - OpenH264 decoder wrapper
  153 - Removed the legacy X11 screen grabber, use XCB instead
  154 - HDCD decoding filter through libhdcd
  155 
  156 
  157 version 11:
  158 - libx265 encoder
  159 - shuffleplanes filter
  160 - replaygain data export
  161 - Alias PIX image encoder and decoder
  162 - BRender PIX image decoder
  163 - Amazing Studio PAF playback support
  164 - XBM decoder
  165 - BMP standalone parser
  166 - OpenEXR image decoder
  167 - support encoding and decoding 4-channel SGI images
  168 - support decoding 16-bit RLE SGI images
  169 - VP7 video decoder
  170 - LucasArts SMUSH SANM video decoder
  171 - LucasArts SMUSH VIMA audio decoder (ADPCM)
  172 - LucasArts SMUSH demuxer
  173 - MP2 encoding via TwoLAME
  174 - asettb filter
  175 - Silicon Graphics RLE 8-bit video decoder
  176 - Silicon Graphics Motion Video Compressor 1 & 2 decoder
  177 - Silicon Graphics Movie demuxer
  178 - On2 AVC (Audio for Video) decoder
  179 - support for decoding through DXVA2 in avconv
  180 - libbs2b-based stereo-to-binaural audio filter
  181 - native Opus decoder
  182 - display matrix export and rotation API
  183 - drop avserver, it was unmaintained for years and largely broken
  184 - Icecast protocol
  185 - request Icecast metadata by default
  186 - support for using metadata in stream specifiers in avtools
  187 - Matroska 3D support
  188 
  189 
  190 version 10:
  191 - av_strnstr
  192 - support ID3v2 tags in ASF files
  193 - reference-counting for AVFrame and AVPacket data
  194 - avconv now fails when input options are used for output file
  195   or vice versa
  196 - avconv options -filter_script and -filter_complex_script, which allow a
  197   filtergraph description to be read from a file
  198 - uniform options syntax across all filters
  199 - interlace filter
  200 - JPEG 2000 decoder
  201 - asetpts filter (same as setpts, but for audio)
  202 - trim and atrim filters
  203 - avconv -t and -ss (output-only) options are now sample-accurate when
  204   transcoding audio
  205 - Matroska muxer can now put the index at the beginning of the file.
  206 - avconv -deinterlace option removed, the yadif filter should be used instead
  207 - Apple Intermediate Codec decoder
  208 - Escape 130 video decoder
  209 - support for slice multithreading in libavfilter
  210 - VC-1 interlaced B-frame support
  211 - support for WavPack muxing (raw and in Matroska)
  212 - Go2Webinar decoder
  213 - WavPack encoding through libwavpack
  214 - Added the -n parameter to avconv
  215 - RTMP seek support
  216 - when transcoding with avconv (i.e. not streamcopying), -ss is now accurate
  217   even when used as an input option. Previous behavior can be restored with
  218   the -noaccurate_seek option.
  219 - avconv -t option can now be used for inputs, to limit the duration of
  220   data read from an input file
  221 - Voxware MetaSound decoder
  222 - WebP decoder
  223 - Error Resilient AAC syntax (ER AAC LC) decoding
  224 - Low Delay AAC (ER AAC LD) decoding
  225 - mux chapters in ASF files
  226 - Opus in Ogg demuxing
  227 - Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
  228 - F4V muxer
  229 - HNM version 4 demuxer and video decoder
  230 - HEVC decoder
  231 - raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
  232 - remove avplay -vismv option, which has not worked for a long time
  233 - Live HDS muxer
  234 - setsar/setdar filters now support variables in ratio expressions
  235 - dar variable in the scale filter now returns the actual DAR (i.e. a * sar)
  236 - VP9 decoder
  237 - support for decoding through VDPAU in avconv (the -hwaccel option)
  238 - remove mp3_header_(de)compress bitstream filters
  239 - stereoscopic 3d metadata handling
  240 - png standalone parser
  241 - WebP encoding via libwebp
  242 - ATRAC3+ decoder
  243 - framepack filter
  244 - Mirillis FIC video decoder
  245 - Support DNx444
  246 - compand audio filter
  247 
  248 
  249 version 9:
  250 - av_basename and av_dirname
  251 - adobe and limelight publisher authentication in RTMP
  252 - VDPAU hardware acceleration through normal hwaccel
  253 - SRTP support
  254 
  255 
  256 version 9_beta3:
  257 - ashowinfo audio filter
  258 - 24-bit FLAC encoding
  259 - audio volume filter
  260 - deprecated the avconv -vol option. the volume filter is to be used instead.
  261 - multi-channel ALAC encoding up to 7.1
  262 - TAK demuxer, parser, and decoder
  263 - adaptive frame-level multithreading for H.264
  264 
  265 
  266 version 9_beta2:
  267 - metadata (INFO tag) support in WAV muxer
  268 - support for building DLLs using MSVC
  269 - remove avserver daemon mode
  270 - support building on the Plan 9 operating system
  271 - ffv1: support version 1.3
  272 
  273 
  274 version 9_beta1:
  275 
  276 - XWD encoder and decoder
  277 - Support for fragmentation in the mov/mp4 muxer
  278 - ISMV (Smooth Streaming) muxer
  279 - CDXL demuxer and decoder
  280 - Apple ProRes encoder
  281 - Sun Rasterfile Encoder
  282 - remove libpostproc
  283 - ID3v2 attached pictures reading and writing
  284 - WMA Lossless decoder
  285 - XBM encoder
  286 - RealAudio Lossless decoder
  287 - ZeroCodec decoder
  288 - drop support for avconv without libavfilter
  289 - add libavresample audio conversion library
  290 - audio filters support in libavfilter and avconv
  291 - add fps filter
  292 - audio split filter
  293 - audio mix filter
  294 - avprobe output is now standard INI or JSON. The old format can still
  295   be used with -of old.
  296 - Indeo Audio decoder
  297 - channelsplit audio filter
  298 - RTMPT protocol support
  299 - iLBC encoding/decoding via libilbc
  300 - Microsoft Screen 1 decoder
  301 - join audio filter
  302 - audio channel mapping filter
  303 - Microsoft ATC Screen decoder
  304 - RTSP listen mode
  305 - TechSmith Screen Codec 2 decoder
  306 - AAC encoding via libfdk-aac
  307 - Microsoft Expression Encoder Screen decoder
  308 - RTMPS protocol support
  309 - RTMPTS protocol support
  310 - JPEG 2000 encoding support through OpenJPEG
  311 - G.723.1 demuxer and decoder
  312 - RTMPE protocol support
  313 - RTMPTE protocol support
  314 - Canopus Lossless Codec decoder
  315 - avconv -shortest option is now per-output file,
  316   -pass and -passlogfile are now per-output stream
  317 - Ut Video encoder
  318 - Microsoft Screen 2 decoder
  319 - RTP depacketization of JPEG
  320 - Smooth Streaming live segmenter muxer
  321 - RTP packetization of JPEG
  322 - Opus decoder and encoder using libopus
  323 - remove -same_quant, it hasn't worked for years
  324 - support for building with MSVC
  325 
  326 
  327 version 0.8:
  328 
  329 - GSM audio parser
  330 - SMJPEG muxer
  331 
  332 
  333 version 0.8_beta2:
  334 
  335 - Automatic thread count based on detection number of (available) CPU cores
  336 - Deprecate libpostproc. If desired, the switch --enable-postproc will
  337   enable it but it may be removed in a later Libav release.
  338 - rv34: frame-level multi-threading
  339 - optimized iMDCT transform on x86 using SSE for for mpegaudiodec
  340 
  341 
  342 version 0.8_beta1:
  343 
  344 - BWF muxer
  345 - Flash Screen Video 2 decoder
  346 - ffplay/ffprobe/ffserver renamed to avplay/avprobe/avserver
  347 - ffmpeg deprecated, added avconv, which is almost the same for now, except
  348 for a few incompatible changes in the options, which will hopefully make them
  349 easier to use. The changes are:
  350     * The options placement is now strictly enforced! While in theory the
  351       options for ffmpeg should be given in [input options] -i INPUT [output
  352       options] OUTPUT order, in practice it was possible to give output options
  353       before the -i and it mostly worked. Except when it didn't - the behavior was
  354       a bit inconsistent. In avconv, it is not possible to mix input and output
  355       options. All non-global options are reset after an input or output filename.
  356     * All per-file options are now truly per-file - they apply only to the next
  357       input or output file and specifying different values for different files
  358       will now work properly (notably -ss and -t options).
  359     * All per-stream options are now truly per-stream - it is possible to
  360       specify which stream(s) should a given option apply to. See the Stream
  361       specifiers section in the avconv manual for details.
  362     * In ffmpeg some options (like -newvideo/-newaudio/...) are irregular in the
  363       sense that they're specified after the output filename instead of before,
  364       like all other options. In avconv this irregularity is removed, all options
  365       apply to the next input or output file.
  366     * -newvideo/-newaudio/-newsubtitle options were removed. Not only were they
  367       irregular and highly confusing, they were also redundant. In avconv the -map
  368       option will create new streams in the output file and map input streams to
  369       them. E.g. avconv -i INPUT -map 0 OUTPUT will create an output stream for
  370       each stream in the first input file.
  371     * The -map option now has slightly different and more powerful syntax:
  372         + Colons (':') are used to separate file index/stream type/stream index
  373           instead of dots. Comma (',') is used to separate the sync stream instead
  374           of colon.. This is done for consistency with other options.
  375         + It's possible to specify stream type. E.g. -map 0:a:2 creates an
  376           output stream from the third input audio stream.
  377         + Omitting the stream index now maps all the streams of the given type,
  378           not just the first. E.g. -map 0:s creates output streams for all the
  379           subtitle streams in the first input file.
  380         + Since -map can now match multiple streams, negative mappings were
  381           introduced. Negative mappings disable some streams from an already
  382           defined map. E.g. '-map 0 -map -0:a:1' means 'create output streams for
  383           all the stream in the first input file, except for the second audio
  384           stream'.
  385     * There is a new option -c (or -codec) for choosing the decoder/encoder to
  386       use, which allows to precisely specify target stream(s) consistently with
  387       other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
  388       libvorbis sets the codec for the first audio stream and -c copy copies all
  389       the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
  390       aliases to -c:v/a/s
  391     * It is now possible to precisely specify which stream should an AVOption
  392       apply to. E.g. -b:v:0 2M sets the bitrate for the first video stream, while
  393       -b:a 128k sets the bitrate for all audio streams. Note that the old -ab 128k
  394       syntax is deprecated and will stop working soon.
  395     * -map_chapters now takes only an input file index and applies to the next
  396       output file. This is consistent with how all the other options work.
  397     * -map_metadata now takes only an input metadata specifier and applies to
  398       the next output file. Output metadata specifier is now part of the option
  399       name, similarly to the AVOptions/map/codec feature above.
  400     * -metadata can now be used to set metadata on streams and chapters, e.g.
  401       -metadata:s:1 language=eng sets the language of the first stream to 'eng'.
  402       This made -vlang/-alang/-slang options redundant, so they were removed.
  403     * -qscale option now uses stream specifiers and applies to all streams, not
  404       just video. I.e. plain -qscale number would now apply to all streams. To get
  405       the old behavior, use -qscale:v. Also there is now a shortcut -q for -qscale
  406       and -aq is now an alias for -q:a.
  407     * -vbsf/-absf/-sbsf options were removed and replaced by a -bsf option which
  408       uses stream specifiers. Use -bsf:v/a/s instead of the old options.
  409     * -itsscale option now uses stream specifiers, so its argument is only the
  410       scale parameter.
  411     * -intra option was removed, use -g 0 for the same effect.
  412     * -psnr option was removed, use -flags +psnr for the same effect.
  413     * -vf option is now an alias to the new -filter option, which uses stream specifiers.
  414     * -vframes/-aframes/-dframes options are now aliases to the new -frames option.
  415     * -vtag/-atag/-stag options are now aliases to the new -tag option.
  416 - XMV demuxer
  417 - Windows Media Image decoder
  418 - LATM muxer/demuxer
  419 - showinfo filter
  420 - split filter
  421 - libcdio-paranoia input device for audio CD grabbing
  422 - select filter
  423 - Apple ProRes decoder
  424 - CELT in Ogg demuxing
  425 - VC-1 interlaced decoding
  426 - lut, lutrgb, and lutyuv filters
  427 - boxblur filter
  428 - Ut Video decoder
  429 - Speex encoding via libspeex
  430 - 4:2:2 H.264 decoding support
  431 - 4:2:2 and 4:4:4 H.264 encoding with libx264
  432 - Pulseaudio input device
  433 - replacement Indeo 3 decoder
  434 - TLS/SSL and HTTPS protocol support
  435 - AVOptions API rewritten and documented
  436 - most of CODEC_FLAG2_*, some CODEC_FLAG_* and many codec-specific fields in
  437   AVCodecContext deprecated. Codec private options should be used instead.
  438 - Properly working defaults in libx264 wrapper, support for native presets.
  439 - Encrypted OMA files support
  440 - Discworld II BMV decoding support
  441 - VBLE Decoder
  442 - OS X Video Decoder Acceleration (VDA) support
  443 - CRI ADX audio format muxer and demuxer
  444 - Playstation Portable PMP format demuxer
  445 - PCM format support in OMA demuxer
  446 - CLJR encoder
  447 - Dxtory capture format decoder
  448 - v410 QuickTime uncompressed 4:4:4 10-bit encoder and decoder
  449 - OpenMG Audio muxer
  450 - Simple segmenting muxer
  451 - Indeo 4 decoder
  452 - SMJPEG demuxer
  453 
  454 
  455 version 0.7:
  456 
  457 - E-AC-3 audio encoder
  458 - ac3enc: add channel coupling support
  459 - floating-point sample format support for (E-)AC-3, DCA, AAC, Vorbis decoders
  460 - H.264/MPEG frame-level multithreading
  461 - av_metadata_* functions renamed to av_dict_* and moved to libavutil
  462 - 4:4:4 H.264 decoding support
  463 - 10-bit H.264 optimizations for x86
  464 - bump libswscale for recently reported ABI break
  465 
  466 
  467 version 0.7_beta2:
  468 
  469 - VP8 frame-level multithreading
  470 - NEON optimizations for VP8
  471 - removed a lot of deprecated API cruft
  472 - FFT and IMDCT optimizations for AVX (Sandy Bridge) processors
  473 - DPX image encoder
  474 - SMPTE 302M AES3 audio decoder
  475 - ffmpeg no longer quits after the 'q' key is pressed; use 'ctrl+c' instead
  476 - 9 bits and 10 bits per sample support in the H.264 decoder
  477 
  478 
  479 version 0.7_beta1:
  480 
  481 - WebM support in Matroska de/muxer
  482 - low overhead Ogg muxing
  483 - MMS-TCP support
  484 - VP8 de/encoding via libvpx
  485 - Demuxer for On2's IVF format
  486 - Pictor/PC Paint decoder
  487 - HE-AAC v2 decoder
  488 - libfaad2 wrapper removed
  489 - DTS-ES extension (XCh) decoding support
  490 - native VP8 decoder
  491 - RTSP tunneling over HTTP
  492 - RTP depacketization of SVQ3
  493 - -strict inofficial replaced by -strict unofficial
  494 - ffplay -exitonkeydown and -exitonmousedown options added
  495 - native GSM / GSM MS decoder
  496 - RTP depacketization of QDM2
  497 - ANSI/ASCII art playback system
  498 - Lego Mindstorms RSO de/muxer
  499 - SubRip subtitle file muxer and demuxer
  500 - Chinese AVS encoding via libxavs
  501 - ffprobe -show_packets option added
  502 - RTP packetization of Theora and Vorbis
  503 - RTP depacketization of MP4A-LATM
  504 - RTP packetization and depacketization of VP8
  505 - hflip filter
  506 - Apple HTTP Live Streaming demuxer
  507 - a64 codec
  508 - MMS-HTTP support
  509 - G.722 ADPCM audio encoder/decoder
  510 - R10k video decoder
  511 - ocv_smooth filter
  512 - frei0r wrapper filter
  513 - change crop filter syntax to width:height:x:y
  514 - make the crop filter accept parametric expressions
  515 - make ffprobe accept AVFormatContext options
  516 - yadif filter
  517 - blackframe filter
  518 - Demuxer for Leitch/Harris' VR native stream format (LXF)
  519 - RTP depacketization of the X-QT QuickTime format
  520 - SAP (Session Announcement Protocol, RFC 2974) muxer and demuxer
  521 - cropdetect filter
  522 - ffmpeg -crop* options removed
  523 - transpose filter added
  524 - ffmpeg -force_key_frames option added
  525 - demuxer for receiving raw rtp:// URLs without an SDP description
  526 - single stream LATM/LOAS decoder
  527 - setpts filter added
  528 - Win64 support for optimized x86 assembly functions
  529 - MJPEG/AVI1 to JPEG/JFIF bitstream filter
  530 - ASS subtitle encoder and decoder
  531 - IEC 61937 encapsulation for E-AC-3, TrueHD, DTS-HD (for HDMI passthrough)
  532 - overlay filter added
  533 - rename aspect filter to setdar, and pixelaspect to setsar
  534 - IEC 61937 demuxer
  535 - Mobotix .mxg demuxer
  536 - frei0r source added
  537 - hqdn3d filter added
  538 - RTP depacketization of QCELP
  539 - FLAC parser added
  540 - gradfun filter added
  541 - AMR-WB decoder
  542 - replace the ocv_smooth filter with a more generic ocv filter
  543 - Windows Televison (WTV) demuxer
  544 - FFmpeg metadata format muxer and demuxer
  545 - SubRip (srt) subtitle decoder
  546 - floating-point AC-3 encoder added
  547 - Lagarith decoder
  548 - ffmpeg -copytb option added
  549 - IVF muxer added
  550 - Wing Commander IV movies decoder added
  551 - movie source added
  552 - Bink version 'b' audio and video decoder
  553 - Bitmap Brothers JV playback system
  554 - Apple HTTP Live Streaming protocol handler
  555 - sndio support for playback and record
  556 - Linux framebuffer input device added
  557 - Chronomaster DFA decoder
  558 - Mobotix MxPEG decoder
  559 - AAC encoding via libvo-aacenc
  560 - AMR-WB encoding via libvo-amrwbenc
  561 - xWMA demuxer
  562 - fieldorder video filter added
  563 
  564 
  565 version 0.6:
  566 
  567 - PB-frame decoding for H.263
  568 - deprecated vhook subsystem removed
  569 - deprecated old scaler removed
  570 - VQF demuxer
  571 - Alpha channel scaler
  572 - PCX encoder
  573 - RTP packetization of H.263
  574 - RTP packetization of AMR
  575 - RTP depacketization of Vorbis
  576 - CorePNG decoding support
  577 - Cook multichannel decoding support
  578 - introduced avlanguage helpers in libavformat
  579 - 8088flex TMV demuxer and decoder
  580 - per-stream language-tags extraction in asfdec
  581 - V210 decoder and encoder
  582 - remaining GPL parts in AC-3 decoder converted to LGPL
  583 - QCP demuxer
  584 - SoX native format muxer and demuxer
  585 - AMR-NB decoding/encoding, AMR-WB decoding via OpenCORE libraries
  586 - DPX image decoder
  587 - Electronic Arts Madcow decoder
  588 - DivX (XSUB) subtitle encoder
  589 - nonfree libamr support for AMR-NB/WB decoding/encoding removed
  590 - experimental AAC encoder
  591 - RTP depacketization of ASF and RTSP from WMS servers
  592 - RTMP support in libavformat
  593 - noX handling for OPT_BOOL X options
  594 - Wave64 demuxer
  595 - IEC-61937 compatible Muxer
  596 - TwinVQ decoder
  597 - Bluray (PGS) subtitle decoder
  598 - LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
  599 - WMA Pro decoder
  600 - Core Audio Format demuxer
  601 - ATRAC1 decoder
  602 - MD STUDIO audio demuxer
  603 - RF64 support in WAV demuxer
  604 - MPEG-4 Audio Lossless Coding (ALS) decoder
  605 - -formats option split into -formats, -codecs, -bsfs, and -protocols
  606 - IV8 demuxer
  607 - CDG demuxer and decoder
  608 - R210 decoder
  609 - Auravision Aura 1 and 2 decoders
  610 - Deluxe Paint Animation playback system
  611 - SIPR decoder
  612 - Adobe Filmstrip muxer and demuxer
  613 - RTP depacketization of H.263
  614 - Bink demuxer and audio/video decoders
  615 - enable symbol versioning by default for linkers that support it
  616 - IFF PBM/ILBM bitmap decoder
  617 - concat protocol
  618 - Indeo 5 decoder
  619 - RTP depacketization of AMR
  620 - WMA Voice decoder
  621 - ffprobe tool
  622 - AMR-NB decoder
  623 - RTSP muxer
  624 - HE-AAC v1 decoder
  625 - Kega Game Video (KGV1) decoder
  626 - VorbisComment writing for FLAC, Ogg FLAC and Ogg Speex files
  627 - RTP depacketization of Theora
  628 - HTTP Digest authentication
  629 - RTMP/RTMPT/RTMPS/RTMPE/RTMPTE protocol support via librtmp
  630 - Psygnosis YOP demuxer and video decoder
  631 - spectral extension support in the E-AC-3 decoder
  632 - unsharp video filter
  633 - RTP hinting in the mov/3gp/mp4 muxer
  634 - Dirac in Ogg demuxing
  635 - seek to keyframes in Ogg
  636 - 4:2:2 and 4:4:4 Theora decoding
  637 - 35% faster VP3/Theora decoding
  638 - faster AAC decoding
  639 - faster H.264 decoding
  640 - RealAudio 1.0 (14.4K) encoder
  641 
  642 
  643 version 0.5:
  644 
  645 - DV50 AKA DVCPRO50 encoder, decoder, muxer and demuxer
  646 - TechSmith Camtasia (TSCC) video decoder
  647 - IBM Ultimotion (ULTI) video decoder
  648 - Sierra Online audio file demuxer and decoder
  649 - Apple QuickDraw (qdrw) video decoder
  650 - Creative ADPCM audio decoder (16 bits as well as 8 bits schemes)
  651 - Electronic Arts Multimedia (WVE/UV2/etc.) file demuxer
  652 - Miro VideoXL (VIXL) video decoder
  653 - H.261 video encoder
  654 - QPEG video decoder
  655 - Nullsoft Video (NSV) file demuxer
  656 - Shorten audio decoder
  657 - LOCO video decoder
  658 - Apple Lossless Audio Codec (ALAC) decoder
  659 - Winnov WNV1 video decoder
  660 - Autodesk Animator Studio Codec (AASC) decoder
  661 - Indeo 2 video decoder
  662 - Fraps FPS1 video decoder
  663 - Snow video encoder/decoder
  664 - Sonic audio encoder/decoder
  665 - Vorbis audio decoder
  666 - Macromedia ADPCM decoder
  667 - Duck TrueMotion 2 video decoder
  668 - support for decoding FLX and DTA extensions in FLIC files
  669 - H.264 custom quantization matrices support
  670 - ffserver fixed, it should now be usable again
  671 - QDM2 audio decoder
  672 - Real Cooker audio decoder
  673 - TrueSpeech audio decoder
  674 - WMA2 audio decoder fixed, now all files should play correctly
  675 - RealAudio 14.4 and 28.8 decoders fixed
  676 - JPEG-LS decoder
  677 - build system improvements
  678 - tabs and trailing whitespace removed from the codebase
  679 - CamStudio video decoder
  680 - AIFF/AIFF-C audio format, encoding and decoding
  681 - ADTS AAC file reading and writing
  682 - Creative VOC file reading and writing
  683 - American Laser Games multimedia (*.mm) playback system
  684 - Zip Motion Blocks Video decoder
  685 - improved Theora/VP3 decoder
  686 - True Audio (TTA) decoder
  687 - AVS demuxer and video decoder
  688 - JPEG-LS encoder
  689 - Smacker demuxer and decoder
  690 - NuppelVideo/MythTV demuxer and RTjpeg decoder
  691 - KMVC decoder
  692 - MPEG-2 intra VLC support
  693 - MPEG-2 4:2:2 encoder
  694 - Flash Screen Video decoder
  695 - GXF demuxer
  696 - Chinese AVS decoder
  697 - GXF muxer
  698 - MXF demuxer
  699 - VC-1/WMV3/WMV9 video decoder
  700 - MacIntel support
  701 - AviSynth support
  702 - VMware video decoder
  703 - VP5 video decoder
  704 - VP6 video decoder
  705 - WavPack lossless audio decoder
  706 - Targa (.TGA) picture decoder
  707 - Vorbis audio encoder
  708 - Delphine Software .cin demuxer/audio and video decoder
  709 - Tiertex .seq demuxer/video decoder
  710 - MTV demuxer
  711 - TIFF picture encoder and decoder
  712 - GIF picture decoder
  713 - Intel Music Coder decoder
  714 - Zip Motion Blocks Video encoder
  715 - Musepack decoder
  716 - Flash Screen Video encoder
  717 - Theora encoding via libtheora
  718 - BMP encoder
  719 - WMA encoder
  720 - GSM-MS encoder and decoder
  721 - DCA decoder
  722 - DXA demuxer and decoder
  723 - DNxHD decoder
  724 - Gamecube movie (.THP) playback system
  725 - Blackfin optimizations
  726 - Interplay C93 demuxer and video decoder
  727 - Bethsoft VID demuxer and video decoder
  728 - CRYO APC demuxer
  729 - ATRAC3 decoder
  730 - V.Flash PTX decoder
  731 - RoQ muxer, RoQ audio encoder
  732 - Renderware TXD demuxer and decoder
  733 - extern C declarations for C++ removed from headers
  734 - sws_flags command line option
  735 - codebook generator
  736 - RoQ video encoder
  737 - QTRLE encoder
  738 - OS/2 support removed and restored again
  739 - AC-3 decoder
  740 - NUT muxer
  741 - additional SPARC (VIS) optimizations
  742 - Matroska muxer
  743 - slice-based parallel H.264 decoding
  744 - Monkey's Audio demuxer and decoder
  745 - AMV audio and video decoder
  746 - DNxHD encoder
  747 - H.264 PAFF decoding
  748 - Nellymoser ASAO decoder
  749 - Beam Software SIFF demuxer and decoder
  750 - libvorbis Vorbis decoding removed in favor of native decoder
  751 - IntraX8 (J-Frame) subdecoder for WMV2 and VC-1
  752 - Ogg (Theora, Vorbis and FLAC) muxer
  753 - The "device" muxers and demuxers are now in a new libavdevice library
  754 - PC Paintbrush PCX decoder
  755 - Sun Rasterfile decoder
  756 - TechnoTrend PVA demuxer
  757 - Linux Media Labs MPEG-4 (LMLM4) demuxer
  758 - AVM2 (Flash 9) SWF muxer
  759 - QT variant of IMA ADPCM encoder
  760 - VFW grabber
  761 - iPod/iPhone compatible mp4 muxer
  762 - Mimic decoder
  763 - MSN TCP Webcam stream demuxer
  764 - RL2 demuxer / decoder
  765 - IFF demuxer
  766 - 8SVX audio decoder
  767 - non-recursive Makefiles
  768 - BFI demuxer
  769 - MAXIS EA XA (.xa) demuxer / decoder
  770 - BFI video decoder
  771 - OMA demuxer
  772 - MLP/TrueHD decoder
  773 - Electronic Arts CMV decoder
  774 - Motion Pixels Video decoder
  775 - Motion Pixels MVI demuxer
  776 - removed animated GIF decoder/demuxer
  777 - D-Cinema audio muxer
  778 - Electronic Arts TGV decoder
  779 - Apple Lossless Audio Codec (ALAC) encoder
  780 - AAC decoder
  781 - floating point PCM encoder/decoder
  782 - MXF muxer
  783 - DV100 AKA DVCPRO HD decoder and demuxer
  784 - E-AC-3 support added to AC-3 decoder
  785 - Nellymoser ASAO encoder
  786 - ASS and SSA demuxer and muxer
  787 - liba52 wrapper removed
  788 - SVQ3 watermark decoding support
  789 - Speex decoding via libspeex
  790 - Electronic Arts TGQ decoder
  791 - RV40 decoder
  792 - QCELP / PureVoice decoder
  793 - RV30 decoder
  794 - hybrid WavPack support
  795 - R3D REDCODE demuxer
  796 - ALSA support for playback and record
  797 - Electronic Arts TQI decoder
  798 - OpenJPEG based JPEG 2000 decoder
  799 - NC (NC4600) camera file demuxer
  800 - Gopher client support
  801 - MXF D-10 muxer
  802 - generic metadata API
  803 
  804 
  805 version 0.4.9-pre1:
  806 
  807 - DV encoder, DV muxer
  808 - Microsoft RLE video decoder
  809 - Microsoft Video-1 decoder
  810 - Apple Animation (RLE) decoder
  811 - Apple Graphics (SMC) decoder
  812 - Apple Video (RPZA) decoder
  813 - Cinepak decoder
  814 - Sega FILM (CPK) file demuxer
  815 - Westwood multimedia support (VQA & AUD files)
  816 - Id Quake II CIN playback support
  817 - 8BPS video decoder
  818 - FLIC playback support
  819 - RealVideo 2.0 (RV20) decoder
  820 - Duck TrueMotion v1 (DUCK) video decoder
  821 - Sierra VMD demuxer and video decoder
  822 - MSZH and ZLIB decoder support
  823 - SVQ1 video encoder
  824 - AMR-WB support
  825 - PPC optimizations
  826 - rate distortion optimal cbp support
  827 - rate distorted optimal ac prediction for MPEG-4
  828 - rate distorted optimal lambda->qp support
  829 - AAC encoding with libfaac
  830 - Sunplus JPEG codec (SP5X) support
  831 - use Lagrange multiplier instead of QP for ratecontrol
  832 - Theora/VP3 decoding support
  833 - XA and ADX ADPCM codecs
  834 - export MPEG-2 active display area / pan scan
  835 - Add support for configuring with IBM XLC
  836 - floating point AAN DCT
  837 - initial support for zygo video (not complete)
  838 - RGB ffv1 support
  839 - new audio/video parser API
  840 - av_log() system
  841 - av_read_frame() and av_seek_frame() support
  842 - missing last frame fixes
  843 - seek by mouse in ffplay
  844 - noise reduction of DCT coefficients
  845 - H.263 OBMC & 4MV support
  846 - H.263 alternative inter vlc support
  847 - H.263 loop filter
  848 - H.263 slice structured mode
  849 - interlaced DCT support for MPEG-2 encoding
  850 - stuffing to stay above min_bitrate
  851 - MB type & QP visualization
  852 - frame stepping for ffplay
  853 - interlaced motion estimation
  854 - alternate scantable support
  855 - SVCD scan offset support
  856 - closed GOP support
  857 - SSE2 FDCT
  858 - quantizer noise shaping
  859 - G.726 ADPCM audio codec
  860 - MS ADPCM encoding
  861 - multithreaded/SMP motion estimation
  862 - multithreaded/SMP encoding for MPEG-1/MPEG-2/MPEG-4/H.263
  863 - multithreaded/SMP decoding for MPEG-2
  864 - FLAC decoder
  865 - Metrowerks CodeWarrior suppport
  866 - H.263+ custom pcf support
  867 - nicer output for 'ffmpeg -formats'
  868 - Matroska demuxer
  869 - SGI image format, encoding and decoding
  870 - H.264 loop filter support
  871 - H.264 CABAC support
  872 - nicer looking arrows for the motion vector visualization
  873 - improved VCD support
  874 - audio timestamp drift compensation
  875 - MPEG-2 YUV 422/444 support
  876 - polyphase kaiser windowed sinc and blackman nuttall windowed sinc audio resample
  877 - better image scaling
  878 - H.261 support
  879 - correctly interleave packets during encoding
  880 - VIS optimized motion compensation
  881 - intra_dc_precision>0 encoding support
  882 - support reuse of motion vectors/MB types/field select values of the source video
  883 - more accurate deblock filter
  884 - padding support
  885 - many optimizations and bugfixes
  886 - FunCom ISS audio file demuxer and according ADPCM decoding
  887 
  888 
  889 version 0.4.8:
  890 
  891 - MPEG-2 video encoding (Michael)
  892 - Id RoQ playback subsystem (Mike Melanson and Tim Ferguson)
  893 - Wing Commander III Movie (.mve) file playback subsystem (Mike Melanson
  894   and Mario Brito)
  895 - Xan DPCM audio decoder (Mario Brito)
  896 - Interplay MVE playback subsystem (Mike Melanson)
  897 - Duck DK3 and DK4 ADPCM audio decoders (Mike Melanson)
  898 
  899 
  900 version 0.4.7:
  901 
  902 - RealAudio 1.0 (14_4) and 2.0 (28_8) native decoders. Author unknown, code from mplayerhq
  903   (originally from public domain player for Amiga at http://www.honeypot.net/audio)
  904 - current version now also compiles with older GCC (Fabrice)
  905 - 4X multimedia playback system including 4xm file demuxer (Mike
  906   Melanson), and 4X video and audio codecs (Michael)
  907 - Creative YUV (CYUV) decoder (Mike Melanson)
  908 - FFV1 codec (our very simple lossless intra only codec, compresses much better
  909   than HuffYUV) (Michael)
  910 - ASV1 (Asus), H.264, Intel indeo3 codecs have been added (various)
  911 - tiny PNG encoder and decoder, tiny GIF decoder, PAM decoder (PPM with
  912   alpha support), JPEG YUV colorspace support. (Fabrice Bellard)
  913 - ffplay has been replaced with a newer version which uses SDL (optionally)
  914   for multiplatform support (Fabrice)
  915 - Sorenson Version 3 codec (SVQ3) support has been added (decoding only) - donated
  916   by anonymous
  917 - AMR format has been added (Johannes Carlsson)
  918 - 3GP support has been added (Johannes Carlsson)
  919 - VP3 codec has been added (Mike Melanson)
  920 - more MPEG-1/2 fixes
  921 - better multiplatform support, MS Visual Studio fixes (various)
  922 - AltiVec optimizations (Magnus Damn and others)
  923 - SH4 processor support has been added (BERO)
  924 - new public interfaces (avcodec_get_pix_fmt) (Roman Shaposhnick)
  925 - VOB streaming support (Brian Foley)
  926 - better MP3 autodetection (Andriy Rysin)
  927 - qpel encoding (Michael)
  928 - 4mv+b frames encoding finally fixed (Michael)
  929 - chroma ME (Michael)
  930 - 5 comparison functions for ME (Michael)
  931 - B-frame encoding speedup (Michael)
  932 - WMV2 codec (unfinished - Michael)
  933 - user specified diamond size for EPZS (Michael)
  934 - Playstation STR playback subsystem, still experimental (Mike and Michael)
  935 - ASV2 codec (Michael)
  936 - CLJR decoder (Alex)
  937 
  938 .. And lots more new enhancements and fixes.
  939 
  940 
  941 version 0.4.6:
  942 
  943 - completely new integer only MPEG audio layer 1/2/3 decoder rewritten
  944   from scratch
  945 - Recoded DCT and motion vector search with gcc (no longer depends on nasm)
  946 - fix quantization bug in AC3 encoder
  947 - added PCM codecs and format. Corrected WAV/AVI/ASF PCM issues
  948 - added prototype ffplay program
  949 - added GOB header parsing on H.263/H.263+ decoder (Juanjo)
  950 - bug fix on MCBPC tables of H.263 (Juanjo)
  951 - bug fix on DC coefficients of H.263 (Juanjo)
  952 - added Advanced Prediction Mode on H.263/H.263+ decoder (Juanjo)
  953 - now we can decode H.263 streams found in QuickTime files (Juanjo)
  954 - now we can decode H.263 streams found in VIVO v1 files(Juanjo)
  955 - preliminary RTP "friendly" mode for H.263/H.263+ coding. (Juanjo)
  956 - added GOB header for H.263/H.263+ coding on RTP mode (Juanjo)
  957 - now H.263 picture size is returned on the first decoded frame (Juanjo)
  958 - added first regression tests
  959 - added MPEG-2 TS demuxer
  960 - new demux API for libav
  961 - more accurate and faster IDCT (Michael)
  962 - faster and entropy-controlled motion search (Michael)
  963 - two pass video encoding (Michael)
  964 - new video rate control (Michael)
  965 - added MSMPEG4V1, MSMPEGV2 and WMV1 support (Michael)
  966 - great performance improvement of video encoders and decoders (Michael)
  967 - new and faster bit readers and vlc parsers (Michael)
  968 - high quality encoding mode: tries all macroblock/VLC types (Michael)
  969 - added DV video decoder
  970 - preliminary RTP/RTSP support in ffserver and libavformat
  971 - H.263+ AIC decoding/encoding support (Juanjo)
  972 - VCD MPEG-PS mode (Juanjo)
  973 - PSNR stuff (Juanjo)
  974 - simple stats output (Juanjo)
  975 - 16-bit and 15-bit RGB/BGR/GBR support (Bisqwit)
  976 
  977 
  978 version 0.4.5:
  979 
  980 - some header fixes (Zdenek Kabelac <kabi at informatics.muni.cz>)
  981 - many MMX optimizations (Nick Kurshev <nickols_k at mail.ru>)
  982 - added configure system (actually a small shell script)
  983 - added MPEG audio layer 1/2/3 decoding using LGPL'ed mpglib by
  984   Michael Hipp (temporary solution - waiting for integer only
  985   decoder)
  986 - fixed VIDIOCSYNC interrupt
  987 - added Intel H.263 decoding support ('I263' AVI fourCC)
  988 - added Real Video 1.0 decoding (needs further testing)
  989 - simplified image formats again. Added PGM format (=grey
  990   pgm). Renamed old PGM to PGMYUV.
  991 - fixed msmpeg4 slice issues (tell me if you still find problems)
  992 - fixed OpenDivX bugs with newer versions (added VOL header decoding)
  993 - added support for MPlayer interface
  994 - added macroblock skip optimization
  995 - added MJPEG decoder
  996 - added mmx/mmxext IDCT from libmpeg2
  997 - added pgmyuvpipe, ppm, and ppm_pipe formats (original patch by Celer
  998   <celer at shell.scrypt.net>)
  999 - added pixel format conversion layer (e.g. for MJPEG or PPM)
 1000 - added deinterlacing option
 1001 - MPEG-1/2 fixes
 1002 - MPEG-4 vol header fixes (Jonathan Marsden <snmjbm at pacbell.net>)
 1003 - ARM optimizations (Lionel Ulmer <lionel.ulmer at free.fr>).
 1004 - Windows porting of file converter
 1005 - added MJPEG raw format (input/ouput)
 1006 - added JPEG image format support (input/output)
 1007 
 1008 
 1009 version 0.4.4:
 1010 
 1011 - fixed some std header definitions (Bjorn Lindgren
 1012   <bjorn.e.lindgren at telia.com>).
 1013 - added MPEG demuxer (MPEG-1 and 2 compatible).
 1014 - added ASF demuxer
 1015 - added prototype RM demuxer
 1016 - added AC3 decoding (done with libac3 by Aaron Holtzman)
 1017 - added decoding codec parameter guessing (.e.g. for MPEG, because the
 1018   header does not include them)
 1019 - fixed header generation in MPEG-1, AVI and ASF muxer: wmplayer can now
 1020   play them (only tested video)
 1021 - fixed H.263 white bug
 1022 - fixed phase rounding in img resample filter
 1023 - add MMX code for polyphase img resample filter
 1024 - added CPU autodetection
 1025 - added generic title/author/copyright/comment string handling (ASF and RM
 1026   use them)
 1027 - added SWF demux to extract MP3 track (not usable yet because no MP3
 1028   decoder)
 1029 - added fractional frame rate support
 1030 - codecs are no longer searched by read_header() (should fix ffserver
 1031   segfault)
 1032 
 1033 
 1034 version 0.4.3:
 1035 
 1036 - BGR24 patch (initial patch by Jeroen Vreeken <pe1rxq at amsat.org>)
 1037 - fixed raw yuv output
 1038 - added motion rounding support in MPEG-4
 1039 - fixed motion bug rounding in MSMPEG4
 1040 - added B-frame handling in video core
 1041 - added full MPEG-1 decoding support
 1042 - added partial (frame only) MPEG-2 support
 1043 - changed the FOURCC code for H.263 to "U263" to be able to see the
 1044   +AVI/H.263 file with the UB Video H.263+ decoder. MPlayer works with
 1045   this +codec ;) (JuanJo).
 1046 - Halfpel motion estimation after MB type selection (JuanJo)
 1047 - added pgm and .Y.U.V output format
 1048 - suppressed 'img:' protocol. Simply use: /tmp/test%d.[pgm|Y] as input or
 1049   output.
 1050 - added pgmpipe I/O format (original patch from Martin Aumueller
 1051   <lists at reserv.at>, but changed completely since we use a format
 1052   instead of a protocol)
 1053 
 1054 
 1055 version 0.4.2:
 1056 
 1057 - added H.263/MPEG-4/MSMPEG4 decoding support. MPEG-4 decoding support
 1058   (for OpenDivX) is almost complete: 8x8 MVs and rounding are
 1059   missing. MSMPEG4 support is complete.
 1060 - added prototype MPEG-1 decoder. Only I- and P-frames handled yet (it
 1061   can decode ffmpeg MPEGs :-)).
 1062 - added libavcodec API documentation (see apiexample.c).
 1063 - fixed image polyphase bug (the bottom of some images could be
 1064   greenish)
 1065 - added support for non clipped motion vectors (decoding only)
 1066   and image sizes non-multiple of 16
 1067 - added support for AC prediction (decoding only)
 1068 - added file overwrite confirmation (can be disabled with -y)
 1069 - added custom size picture to H.263 using H.263+ (Juanjo)
 1070 
 1071 
 1072 version 0.4.1:
 1073 
 1074 - added MSMPEG4 (aka DivX) compatible encoder. Changed default codec
 1075   of AVI and ASF to DIV3.
 1076 - added -me option to set motion estimation method
 1077   (default=log). suppressed redundant -hq option.
 1078 - added options -acodec and -vcodec to force a given codec (useful for
 1079   AVI for example)
 1080 - fixed -an option
 1081 - improved dct_quantize speed
 1082 - factorized some motion estimation code
 1083 
 1084 
 1085 version 0.4.0:
 1086 
 1087 - removing grab code from ffserver and moved it to ffmpeg. Added
 1088   multistream support to ffmpeg.
 1089 - added timeshifting support for live feeds (option ?date=xxx in the
 1090   URL)
 1091 - added high quality image resize code with polyphase filter (need
 1092   mmx/see optimization). Enable multiple image size support in ffserver.
 1093 - added multi live feed support in ffserver
 1094 - suppressed master feature from ffserver (it should be done with an
 1095   external program which opens the .ffm url and writes it to another
 1096   ffserver)
 1097 - added preliminary support for video stream parsing (WAV and AVI half
 1098   done). Added proper support for audio/video file conversion in
 1099   ffmpeg.
 1100 - added preliminary support for video file sending from ffserver
 1101 - redesigning I/O subsystem: now using URL based input and output
 1102   (see avio.h)
 1103 - added WAV format support
 1104 - added "tty user interface" to ffmpeg to stop grabbing gracefully
 1105 - added MMX/SSE optimizations to SAD (Sums of Absolutes Differences)
 1106   (Juan J. Sierralta P. a.k.a. "Juanjo" <juanjo at atmlab.utfsm.cl>)
 1107 - added MMX DCT from mpeg2_movie 1.5 (Juanjo)
 1108 - added new motion estimation algorithms, log and phods (Juanjo)
 1109 - changed directories: libav for format handling, libavcodec for
 1110   codecs
 1111 
 1112 
 1113 version 0.3.4:
 1114 
 1115 - added stereo in MPEG audio encoder
 1116 
 1117 
 1118 version 0.3.3:
 1119 
 1120 - added 'high quality' mode which use motion vectors. It can be used in
 1121   real time at low resolution.
 1122 - fixed rounding problems which caused quality problems at high
 1123   bitrates and large GOP size
 1124 
 1125 
 1126 version 0.3.2: small fixes
 1127 
 1128 - ASF fixes
 1129 - put_seek bug fix
 1130 
 1131 
 1132 version 0.3.1: added avi/divx support
 1133 
 1134 - added AVI support
 1135 - added MPEG-4 codec compatible with OpenDivX. It is based on the H.263 codec
 1136 - added sound for flash format (not tested)
 1137 
 1138 
 1139 version 0.3: initial public release