| /* |
| * RIFF codec tags |
| * Copyright (c) 2000 Fabrice Bellard |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include "libavcodec/avcodec.h" |
| #include "avformat.h" |
| #include "riff.h" |
| |
| /* Note: when encoding, the first matching tag is used, so order is |
| important if multiple tags possible for a given codec. */ |
| const AVCodecTag codec_bmp_tags[] = { |
| { CODEC_ID_H264, MKTAG('H', '2', '6', '4') }, |
| { CODEC_ID_H264, MKTAG('h', '2', '6', '4') }, |
| { CODEC_ID_H264, MKTAG('X', '2', '6', '4') }, |
| { CODEC_ID_H264, MKTAG('x', '2', '6', '4') }, |
| { CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, |
| { CODEC_ID_H264, MKTAG('V', 'S', 'S', 'H') }, |
| { CODEC_ID_H263, MKTAG('H', '2', '6', '3') }, |
| { CODEC_ID_H263, MKTAG('X', '2', '6', '3') }, |
| { CODEC_ID_H263, MKTAG('T', '2', '6', '3') }, |
| { CODEC_ID_H263, MKTAG('L', '2', '6', '3') }, |
| { CODEC_ID_H263, MKTAG('V', 'X', '1', 'K') }, |
| { CODEC_ID_H263P, MKTAG('H', '2', '6', '3') }, |
| { CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */ |
| { CODEC_ID_H261, MKTAG('H', '2', '6', '1') }, |
| { CODEC_ID_H263P, MKTAG('U', '2', '6', '3') }, |
| { CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') }, |
| { CODEC_ID_MPEG4, MKTAG('F', 'M', 'P', '4') }, |
| { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', 'X') }, |
| { CODEC_ID_MPEG4, MKTAG('D', 'X', '5', '0') }, |
| { CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, |
| { CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') }, |
| { CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') }, |
| { CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) }, /* some broken avi use this */ |
| { CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') }, |
| { CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') }, |
| { CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, |
| { CODEC_ID_MPEG4, MKTAG('U', 'M', 'P', '4') }, |
| { CODEC_ID_MPEG4, MKTAG('W', 'V', '1', 'F') }, |
| { CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') }, |
| { CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') }, |
| { CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, |
| { CODEC_ID_MPEG4, MKTAG('F', 'F', 'D', 'S') }, |
| { CODEC_ID_MPEG4, MKTAG('F', 'V', 'F', 'W') }, |
| { CODEC_ID_MPEG4, MKTAG('D', 'C', 'O', 'D') }, |
| { CODEC_ID_MPEG4, MKTAG('M', 'V', 'X', 'M') }, |
| { CODEC_ID_MPEG4, MKTAG('P', 'M', '4', 'V') }, |
| { CODEC_ID_MPEG4, MKTAG('S', 'M', 'P', '4') }, |
| { CODEC_ID_MPEG4, MKTAG('D', 'X', 'G', 'M') }, |
| { CODEC_ID_MPEG4, MKTAG('V', 'I', 'D', 'M') }, |
| { CODEC_ID_MPEG4, MKTAG('M', '4', 'T', '3') }, |
| { CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') }, |
| { CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') }, /* flipped video */ |
| { CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') }, |
| { CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') }, |
| { CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') }, |
| { CODEC_ID_MPEG4, MKTAG('E', 'P', 'H', 'V') }, /* Ephv MPEG-4 */ |
| { CODEC_ID_MPEG4, MKTAG('E', 'M', '4', 'A') }, |
| { CODEC_ID_MPEG4, MKTAG('M', '4', 'C', 'C') }, /* Divio MPEG-4 */ |
| { CODEC_ID_MPEG4, MKTAG('S', 'N', '4', '0') }, |
| { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '3') }, /* default signature when using MSMPEG4 */ |
| { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, |
| { CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', 'G', '3') }, |
| { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '5') }, |
| { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '6') }, |
| { CODEC_ID_MSMPEG4V3, MKTAG('D', 'I', 'V', '4') }, |
| { CODEC_ID_MSMPEG4V3, MKTAG('D', 'V', 'X', '3') }, |
| { CODEC_ID_MSMPEG4V3, MKTAG('A', 'P', '4', '1') }, |
| { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '1') }, |
| { CODEC_ID_MSMPEG4V3, MKTAG('C', 'O', 'L', '0') }, |
| { CODEC_ID_MSMPEG4V2, MKTAG('M', 'P', '4', '2') }, |
| { CODEC_ID_MSMPEG4V2, MKTAG('D', 'I', 'V', '2') }, |
| { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', 'G', '4') }, |
| { CODEC_ID_MSMPEG4V1, MKTAG('M', 'P', '4', '1') }, |
| { CODEC_ID_WMV1, MKTAG('W', 'M', 'V', '1') }, |
| { CODEC_ID_WMV2, MKTAG('W', 'M', 'V', '2') }, |
| { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'd') }, |
| { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', 'd') }, |
| { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') }, |
| { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') }, |
| { CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') }, |
| { CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */ |
| { CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, |
| { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '1') }, |
| { CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', 'g', '2') }, |
| { CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', '2') }, |
| { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'P', 'E', 'G') }, |
| { CODEC_ID_MPEG1VIDEO, MKTAG('P', 'I', 'M', '1') }, |
| { CODEC_ID_MPEG2VIDEO, MKTAG('P', 'I', 'M', '2') }, |
| { CODEC_ID_MPEG1VIDEO, MKTAG('V', 'C', 'R', '2') }, |
| { CODEC_ID_MPEG1VIDEO, MKTAG( 1 , 0 , 0 , 16) }, |
| { CODEC_ID_MPEG2VIDEO, MKTAG( 2 , 0 , 0 , 16) }, |
| { CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') }, |
| { CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') }, |
| { CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */ |
| { CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') }, |
| { CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') }, |
| { CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, |
| { CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') }, |
| { CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */ |
| { CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */ |
| { CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */ |
| { CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, |
| { CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') }, |
| { CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, |
| { CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') }, |
| { CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') }, |
| { CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */ |
| { CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */ |
| { CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') }, |
| { CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') }, |
| { CODEC_ID_CYUV, MKTAG('C', 'Y', 'U', 'V') }, |
| { CODEC_ID_RAWVIDEO, MKTAG( 0 , 0 , 0 , 0 ) }, |
| { CODEC_ID_RAWVIDEO, MKTAG('I', '4', '2', '0') }, |
| { CODEC_ID_RAWVIDEO, MKTAG('Y', 'U', 'Y', '2') }, |
| { CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '2', '2') }, |
| { CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', '1', '2') }, |
| { CODEC_ID_RAWVIDEO, MKTAG('U', 'Y', 'V', 'Y') }, |
| { CODEC_ID_RAWVIDEO, MKTAG('I', 'Y', 'U', 'V') }, |
| { CODEC_ID_RAWVIDEO, MKTAG('Y', '8', '0', '0') }, |
| { CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') }, |
| { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '1') }, |
| { CODEC_ID_INDEO3, MKTAG('I', 'V', '3', '2') }, |
| { CODEC_ID_INDEO4, MKTAG('I', 'V', '4', '1') }, |
| { CODEC_ID_INDEO5, MKTAG('I', 'V', '5', '0') }, |
| { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') }, |
| { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') }, |
| { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') }, |
| { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') }, |
| { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') }, |
| { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') }, |
| { CODEC_ID_ASV1, MKTAG('A', 'S', 'V', '1') }, |
| { CODEC_ID_ASV2, MKTAG('A', 'S', 'V', '2') }, |
| { CODEC_ID_VCR1, MKTAG('V', 'C', 'R', '1') }, |
| { CODEC_ID_FFV1, MKTAG('F', 'F', 'V', '1') }, |
| { CODEC_ID_XAN_WC4, MKTAG('X', 'x', 'a', 'n') }, |
| { CODEC_ID_MIMIC, MKTAG('L', 'M', '2', '0') }, |
| { CODEC_ID_MSRLE, MKTAG('m', 'r', 'l', 'e') }, |
| { CODEC_ID_MSRLE, MKTAG( 1 , 0 , 0 , 0 ) }, |
| { CODEC_ID_MSRLE, MKTAG( 2 , 0 , 0 , 0 ) }, |
| { CODEC_ID_MSVIDEO1, MKTAG('M', 'S', 'V', 'C') }, |
| { CODEC_ID_MSVIDEO1, MKTAG('m', 's', 'v', 'c') }, |
| { CODEC_ID_MSVIDEO1, MKTAG('C', 'R', 'A', 'M') }, |
| { CODEC_ID_MSVIDEO1, MKTAG('c', 'r', 'a', 'm') }, |
| { CODEC_ID_MSVIDEO1, MKTAG('W', 'H', 'A', 'M') }, |
| { CODEC_ID_MSVIDEO1, MKTAG('w', 'h', 'a', 'm') }, |
| { CODEC_ID_CINEPAK, MKTAG('c', 'v', 'i', 'd') }, |
| { CODEC_ID_TRUEMOTION1, MKTAG('D', 'U', 'C', 'K') }, |
| { CODEC_ID_TRUEMOTION1, MKTAG('P', 'V', 'E', 'Z') }, |
| { CODEC_ID_MSZH, MKTAG('M', 'S', 'Z', 'H') }, |
| { CODEC_ID_ZLIB, MKTAG('Z', 'L', 'I', 'B') }, |
| { CODEC_ID_SNOW, MKTAG('S', 'N', 'O', 'W') }, |
| { CODEC_ID_4XM, MKTAG('4', 'X', 'M', 'V') }, |
| { CODEC_ID_FLV1, MKTAG('F', 'L', 'V', '1') }, |
| { CODEC_ID_FLASHSV, MKTAG('F', 'S', 'V', '1') }, |
| { CODEC_ID_VP6F, MKTAG('V', 'P', '6', 'F') }, |
| { CODEC_ID_SVQ1, MKTAG('s', 'v', 'q', '1') }, |
| { CODEC_ID_TSCC, MKTAG('t', 's', 'c', 'c') }, |
| { CODEC_ID_ULTI, MKTAG('U', 'L', 'T', 'I') }, |
| { CODEC_ID_VIXL, MKTAG('V', 'I', 'X', 'L') }, |
| { CODEC_ID_QPEG, MKTAG('Q', 'P', 'E', 'G') }, |
| { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '0') }, |
| { CODEC_ID_QPEG, MKTAG('Q', '1', '.', '1') }, |
| { CODEC_ID_WMV3, MKTAG('W', 'M', 'V', '3') }, |
| { CODEC_ID_VC1, MKTAG('W', 'V', 'C', '1') }, |
| { CODEC_ID_VC1, MKTAG('W', 'M', 'V', 'A') }, |
| { CODEC_ID_LOCO, MKTAG('L', 'O', 'C', 'O') }, |
| { CODEC_ID_WNV1, MKTAG('W', 'N', 'V', '1') }, |
| { CODEC_ID_AASC, MKTAG('A', 'A', 'S', 'C') }, |
| { CODEC_ID_INDEO2, MKTAG('R', 'T', '2', '1') }, |
| { CODEC_ID_FRAPS, MKTAG('F', 'P', 'S', '1') }, |
| { CODEC_ID_THEORA, MKTAG('t', 'h', 'e', 'o') }, |
| { CODEC_ID_TRUEMOTION2, MKTAG('T', 'M', '2', '0') }, |
| { CODEC_ID_CSCD, MKTAG('C', 'S', 'C', 'D') }, |
| { CODEC_ID_ZMBV, MKTAG('Z', 'M', 'B', 'V') }, |
| { CODEC_ID_KMVC, MKTAG('K', 'M', 'V', 'C') }, |
| { CODEC_ID_CAVS, MKTAG('C', 'A', 'V', 'S') }, |
| { CODEC_ID_JPEG2000, MKTAG('M', 'J', '2', 'C') }, |
| { CODEC_ID_VMNC, MKTAG('V', 'M', 'n', 'c') }, |
| { CODEC_ID_TARGA, MKTAG('t', 'g', 'a', ' ') }, |
| { CODEC_ID_PNG, MKTAG('M', 'P', 'N', 'G') }, |
| { CODEC_ID_CLJR, MKTAG('c', 'l', 'j', 'r') }, |
| { CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') }, |
| { CODEC_ID_RPZA, MKTAG('a', 'z', 'p', 'r') }, |
| { CODEC_ID_RPZA, MKTAG('R', 'P', 'Z', 'A') }, |
| { CODEC_ID_RPZA, MKTAG('r', 'p', 'z', 'a') }, |
| { CODEC_ID_SP5X, MKTAG('S', 'P', '5', '4') }, |
| { CODEC_ID_AURA, MKTAG('A', 'U', 'R', 'A') }, |
| { CODEC_ID_AURA2, MKTAG('A', 'U', 'R', '2') }, |
| { CODEC_ID_NONE, 0 } |
| }; |
| |
| const AVCodecTag codec_wav_tags[] = { |
| { CODEC_ID_PCM_S16LE, 0x0001 }, |
| { CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */ |
| { CODEC_ID_PCM_S24LE, 0x0001 }, |
| { CODEC_ID_PCM_S32LE, 0x0001 }, |
| { CODEC_ID_ADPCM_MS, 0x0002 }, |
| { CODEC_ID_PCM_F32LE, 0x0003 }, |
| { CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */ |
| { CODEC_ID_PCM_ALAW, 0x0006 }, |
| { CODEC_ID_PCM_MULAW, 0x0007 }, |
| { CODEC_ID_WMAVOICE, 0x000A }, |
| { CODEC_ID_ADPCM_IMA_WAV, 0x0011 }, |
| { CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */ |
| { CODEC_ID_ADPCM_YAMAHA, 0x0020 }, |
| { CODEC_ID_TRUESPEECH, 0x0022 }, |
| { CODEC_ID_GSM_MS, 0x0031 }, |
| { CODEC_ID_ADPCM_G726, 0x0045 }, |
| { CODEC_ID_MP2, 0x0050 }, |
| { CODEC_ID_MP3, 0x0055 }, |
| { CODEC_ID_AMR_NB, 0x0057 }, |
| { CODEC_ID_AMR_WB, 0x0058 }, |
| { CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */ |
| { CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */ |
| { CODEC_ID_ADPCM_IMA_WAV, 0x0069 }, |
| { CODEC_ID_VOXWARE, 0x0075 }, |
| { CODEC_ID_AAC, 0x00ff }, |
| { CODEC_ID_SIPR, 0x0130 }, |
| { CODEC_ID_WMAV1, 0x0160 }, |
| { CODEC_ID_WMAV2, 0x0161 }, |
| { CODEC_ID_WMAPRO, 0x0162 }, |
| { CODEC_ID_WMALOSSLESS, 0x0163 }, |
| { CODEC_ID_ADPCM_CT, 0x0200 }, |
| { CODEC_ID_ATRAC3, 0x0270 }, |
| { CODEC_ID_IMC, 0x0401 }, |
| { CODEC_ID_AC3, 0x2000 }, |
| { CODEC_ID_DTS, 0x2001 }, |
| { CODEC_ID_SONIC, 0x2048 }, |
| { CODEC_ID_SONIC_LS, 0x2048 }, |
| { CODEC_ID_AAC, 0x706d }, |
| { CODEC_ID_AAC, 0x4143 }, |
| { CODEC_ID_FLAC, 0xF1AC }, |
| { CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' }, |
| { CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id? |
| |
| /* FIXME: All of the IDs below are not 16 bit and thus illegal. */ |
| // for NuppelVideo (nuv.c) |
| { CODEC_ID_PCM_S16LE, MKTAG('R', 'A', 'W', 'A') }, |
| { CODEC_ID_MP3, MKTAG('L', 'A', 'M', 'E') }, |
| { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') }, |
| { 0, 0 }, |
| }; |
| |
| #if CONFIG_MUXERS |
| int64_t start_tag(ByteIOContext *pb, const char *tag) |
| { |
| put_tag(pb, tag); |
| put_le32(pb, 0); |
| return url_ftell(pb); |
| } |
| |
| void end_tag(ByteIOContext *pb, int64_t start) |
| { |
| int64_t pos; |
| |
| pos = url_ftell(pb); |
| url_fseek(pb, start - 4, SEEK_SET); |
| put_le32(pb, (uint32_t)(pos - start)); |
| url_fseek(pb, pos, SEEK_SET); |
| } |
| |
| /* WAVEFORMATEX header */ |
| /* returns the size or -1 on error */ |
| int put_wav_header(ByteIOContext *pb, AVCodecContext *enc) |
| { |
| int bps, blkalign, bytespersec; |
| int hdrsize = 18; |
| |
| if(!enc->codec_tag || enc->codec_tag > 0xffff) |
| return -1; |
| |
| put_le16(pb, enc->codec_tag); |
| put_le16(pb, enc->channels); |
| put_le32(pb, enc->sample_rate); |
| if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_GSM_MS) { |
| bps = 0; |
| } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV || enc->codec_id == CODEC_ID_ADPCM_MS || enc->codec_id == CODEC_ID_ADPCM_G726 || enc->codec_id == CODEC_ID_ADPCM_YAMAHA) { // |
| bps = 4; |
| } else { |
| if (!(bps = av_get_bits_per_sample(enc->codec_id))) |
| bps = 16; // default to 16 |
| } |
| if(bps != enc->bits_per_coded_sample && enc->bits_per_coded_sample){ |
| av_log(enc, AV_LOG_WARNING, "requested bits_per_coded_sample (%d) and actually stored (%d) differ\n", enc->bits_per_coded_sample, bps); |
| } |
| |
| if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3 || enc->codec_id == CODEC_ID_AC3) { |
| blkalign = enc->frame_size; //this is wrong, but it seems many demuxers do not work if this is set correctly |
| //blkalign = 144 * enc->bit_rate/enc->sample_rate; |
| } else if (enc->codec_id == CODEC_ID_ADPCM_G726) { // |
| blkalign = 1; |
| } else if (enc->block_align != 0) { /* specified by the codec */ |
| blkalign = enc->block_align; |
| } else |
| blkalign = enc->channels*bps >> 3; |
| if (enc->codec_id == CODEC_ID_PCM_U8 || |
| enc->codec_id == CODEC_ID_PCM_S24LE || |
| enc->codec_id == CODEC_ID_PCM_S32LE || |
| enc->codec_id == CODEC_ID_PCM_F32LE || |
| enc->codec_id == CODEC_ID_PCM_F64LE || |
| enc->codec_id == CODEC_ID_PCM_S16LE) { |
| bytespersec = enc->sample_rate * blkalign; |
| } else { |
| bytespersec = enc->bit_rate / 8; |
| } |
| put_le32(pb, bytespersec); /* bytes per second */ |
| put_le16(pb, blkalign); /* block align */ |
| put_le16(pb, bps); /* bits per sample */ |
| if (enc->codec_id == CODEC_ID_MP3) { |
| put_le16(pb, 12); /* wav_extra_size */ |
| hdrsize += 12; |
| put_le16(pb, 1); /* wID */ |
| put_le32(pb, 2); /* fdwFlags */ |
| put_le16(pb, 1152); /* nBlockSize */ |
| put_le16(pb, 1); /* nFramesPerBlock */ |
| put_le16(pb, 1393); /* nCodecDelay */ |
| } else if (enc->codec_id == CODEC_ID_MP2) { |
| put_le16(pb, 22); /* wav_extra_size */ |
| hdrsize += 22; |
| put_le16(pb, 2); /* fwHeadLayer */ |
| put_le32(pb, enc->bit_rate); /* dwHeadBitrate */ |
| put_le16(pb, enc->channels == 2 ? 1 : 8); /* fwHeadMode */ |
| put_le16(pb, 0); /* fwHeadModeExt */ |
| put_le16(pb, 1); /* wHeadEmphasis */ |
| put_le16(pb, 16); /* fwHeadFlags */ |
| put_le32(pb, 0); /* dwPTSLow */ |
| put_le32(pb, 0); /* dwPTSHigh */ |
| } else if (enc->codec_id == CODEC_ID_GSM_MS) { |
| put_le16(pb, 2); /* wav_extra_size */ |
| hdrsize += 2; |
| put_le16(pb, enc->frame_size); /* wSamplesPerBlock */ |
| } else if (enc->codec_id == CODEC_ID_ADPCM_IMA_WAV) { |
| put_le16(pb, 2); /* wav_extra_size */ |
| hdrsize += 2; |
| put_le16(pb, enc->frame_size); /* wSamplesPerBlock */ |
| } else if(enc->extradata_size){ |
| put_le16(pb, enc->extradata_size); |
| put_buffer(pb, enc->extradata, enc->extradata_size); |
| hdrsize += enc->extradata_size; |
| if(hdrsize&1){ |
| hdrsize++; |
| put_byte(pb, 0); |
| } |
| } else { |
| hdrsize -= 2; |
| } |
| |
| return hdrsize; |
| } |
| |
| /* BITMAPINFOHEADER header */ |
| void put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf) |
| { |
| put_le32(pb, 40 + enc->extradata_size); /* size */ |
| put_le32(pb, enc->width); |
| //We always store RGB TopDown |
| put_le32(pb, enc->codec_tag ? enc->height : -enc->height); |
| put_le16(pb, 1); /* planes */ |
| |
| put_le16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */ |
| /* compression type */ |
| put_le32(pb, enc->codec_tag); |
| put_le32(pb, enc->width * enc->height * 3); |
| put_le32(pb, 0); |
| put_le32(pb, 0); |
| put_le32(pb, 0); |
| put_le32(pb, 0); |
| |
| put_buffer(pb, enc->extradata, enc->extradata_size); |
| |
| if (enc->extradata_size & 1) |
| put_byte(pb, 0); |
| } |
| #endif //CONFIG_MUXERS |
| |
| #if CONFIG_DEMUXERS |
| /* We could be given one of the three possible structures here: |
| * WAVEFORMAT, PCMWAVEFORMAT or WAVEFORMATEX. Each structure |
| * is an expansion of the previous one with the fields added |
| * at the bottom. PCMWAVEFORMAT adds 'WORD wBitsPerSample' and |
| * WAVEFORMATEX adds 'WORD cbSize' and basically makes itself |
| * an openended structure. |
| */ |
| void get_wav_header(ByteIOContext *pb, AVCodecContext *codec, int size) |
| { |
| int id; |
| |
| id = get_le16(pb); |
| codec->codec_type = CODEC_TYPE_AUDIO; |
| codec->codec_tag = id; |
| codec->channels = get_le16(pb); |
| codec->sample_rate = get_le32(pb); |
| codec->bit_rate = get_le32(pb) * 8; |
| codec->block_align = get_le16(pb); |
| if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */ |
| codec->bits_per_coded_sample = 8; |
| }else |
| codec->bits_per_coded_sample = get_le16(pb); |
| if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */ |
| int cbSize = get_le16(pb); /* cbSize */ |
| size -= 18; |
| cbSize = FFMIN(size, cbSize); |
| if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */ |
| codec->bits_per_coded_sample = get_le16(pb); |
| codec->channel_layout = get_le32(pb); /* dwChannelMask */ |
| id = get_le32(pb); /* 4 first bytes of GUID */ |
| url_fskip(pb, 12); /* skip end of GUID */ |
| cbSize -= 22; |
| size -= 22; |
| } |
| codec->extradata_size = cbSize; |
| if (cbSize > 0) { |
| codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); |
| get_buffer(pb, codec->extradata, codec->extradata_size); |
| size -= cbSize; |
| } |
| |
| /* It is possible for the chunk to contain garbage at the end */ |
| if (size > 0) |
| url_fskip(pb, size); |
| } |
| codec->codec_id = wav_codec_get_id(id, codec->bits_per_coded_sample); |
| } |
| |
| |
| enum CodecID wav_codec_get_id(unsigned int tag, int bps) |
| { |
| enum CodecID id; |
| id = codec_get_id(codec_wav_tags, tag); |
| if (id <= 0) |
| return id; |
| /* handle specific u8 codec */ |
| if (id == CODEC_ID_PCM_S16LE && bps == 8) |
| id = CODEC_ID_PCM_U8; |
| if (id == CODEC_ID_PCM_S16LE && bps == 24) |
| id = CODEC_ID_PCM_S24LE; |
| if (id == CODEC_ID_PCM_S16LE && bps == 32) |
| id = CODEC_ID_PCM_S32LE; |
| if (id == CODEC_ID_PCM_F32LE && bps == 64) |
| id = CODEC_ID_PCM_F64LE; |
| if (id == CODEC_ID_ADPCM_IMA_WAV && bps == 8) |
| id = CODEC_ID_PCM_ZORK; |
| return id; |
| } |
| #endif // CONFIG_DEMUXERS |
| |
| void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale) |
| { |
| int gcd; |
| |
| *au_ssize= stream->block_align; |
| if(stream->frame_size && stream->sample_rate){ |
| *au_scale=stream->frame_size; |
| *au_rate= stream->sample_rate; |
| }else if(stream->codec_type == CODEC_TYPE_VIDEO){ |
| *au_scale= stream->time_base.num; |
| *au_rate = stream->time_base.den; |
| }else{ |
| *au_scale= stream->block_align ? stream->block_align*8 : 8; |
| *au_rate = stream->bit_rate ? stream->bit_rate : 8*stream->sample_rate; |
| } |
| gcd= av_gcd(*au_scale, *au_rate); |
| *au_scale /= gcd; |
| *au_rate /= gcd; |
| } |
