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Member "ffmpeg-4.0.1/libavcodec/aac_ac3_parser.h" (29 Mar 2016, 2129 Bytes) of package /linux/misc/ffmpeg-4.0.1.tar.xz:


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    1 /*
    2  * Common AAC and AC-3 parser prototypes
    3  * Copyright (c) 2003 Fabrice Bellard
    4  * Copyright (c) 2003 Michael Niedermayer
    5  *
    6  * This file is part of FFmpeg.
    7  *
    8  * FFmpeg is free software; you can redistribute it and/or
    9  * modify it under the terms of the GNU Lesser General Public
   10  * License as published by the Free Software Foundation; either
   11  * version 2.1 of the License, or (at your option) any later version.
   12  *
   13  * FFmpeg is distributed in the hope that it will be useful,
   14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   16  * Lesser General Public License for more details.
   17  *
   18  * You should have received a copy of the GNU Lesser General Public
   19  * License along with FFmpeg; if not, write to the Free Software
   20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
   21  */
   22 
   23 #ifndef AVCODEC_AAC_AC3_PARSER_H
   24 #define AVCODEC_AAC_AC3_PARSER_H
   25 
   26 #include <stdint.h>
   27 #include "avcodec.h"
   28 #include "parser.h"
   29 
   30 typedef enum {
   31     AAC_AC3_PARSE_ERROR_SYNC        = -0x1030c0a,
   32     AAC_AC3_PARSE_ERROR_BSID        = -0x2030c0a,
   33     AAC_AC3_PARSE_ERROR_SAMPLE_RATE = -0x3030c0a,
   34     AAC_AC3_PARSE_ERROR_FRAME_SIZE  = -0x4030c0a,
   35     AAC_AC3_PARSE_ERROR_FRAME_TYPE  = -0x5030c0a,
   36     AAC_AC3_PARSE_ERROR_CRC         = -0x6030c0a,
   37     AAC_AC3_PARSE_ERROR_CHANNEL_CFG = -0x7030c0a,
   38 } AACAC3ParseError;
   39 
   40 typedef struct AACAC3ParseContext {
   41     ParseContext pc;
   42     int frame_size;
   43     int header_size;
   44     int (*sync)(uint64_t state, struct AACAC3ParseContext *hdr_info,
   45             int *need_next_header, int *new_frame_start);
   46 
   47     int channels;
   48     int sample_rate;
   49     int bit_rate;
   50     int samples;
   51     uint64_t channel_layout;
   52     int service_type;
   53 
   54     int remaining_size;
   55     uint64_t state;
   56 
   57     int need_next_header;
   58     enum AVCodecID codec_id;
   59 } AACAC3ParseContext;
   60 
   61 int ff_aac_ac3_parse(AVCodecParserContext *s1,
   62                      AVCodecContext *avctx,
   63                      const uint8_t **poutbuf, int *poutbuf_size,
   64                      const uint8_t *buf, int buf_size);
   65 
   66 #endif /* AVCODEC_AAC_AC3_PARSER_H */