diff --git a/libavformat/riff.c b/libavformat/riff.c index d24231a50b..694d299ecf 100644 --- a/libavformat/riff.c +++ b/libavformat/riff.c @@ -26,8 +26,8 @@ #include "riff.h" #include "libavcodec/bytestream.h" -/* Note: when encoding, the first matching tag is used, so order is - important if multiple tags possible for a given codec. */ +/* Note: When encoding, the first matching tag is used, so order is + * important if multiple tags are possible for a given codec. */ const AVCodecTag ff_codec_bmp_tags[] = { { AV_CODEC_ID_H264, MKTAG('H', '2', '6', '4') }, { AV_CODEC_ID_H264, MKTAG('h', '2', '6', '4') }, @@ -44,7 +44,7 @@ const AVCodecTag ff_codec_bmp_tags[] = { { AV_CODEC_ID_H263, MKTAG('Z', 'y', 'G', 'o') }, { AV_CODEC_ID_H263, MKTAG('M', '2', '6', '3') }, { AV_CODEC_ID_H263P, MKTAG('H', '2', '6', '3') }, - { AV_CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* intel h263 */ + { AV_CODEC_ID_H263I, MKTAG('I', '2', '6', '3') }, /* Intel H.263 */ { AV_CODEC_ID_H261, MKTAG('H', '2', '6', '1') }, { AV_CODEC_ID_H263P, MKTAG('U', '2', '6', '3') }, { AV_CODEC_ID_H263P, MKTAG('v', 'i', 'v', '1') }, @@ -54,8 +54,10 @@ const AVCodecTag ff_codec_bmp_tags[] = { { AV_CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'D') }, { AV_CODEC_ID_MPEG4, MKTAG('M', 'P', '4', 'S') }, { AV_CODEC_ID_MPEG4, MKTAG('M', '4', 'S', '2') }, - { AV_CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) }, /* some broken avi use this */ - { AV_CODEC_ID_MPEG4, MKTAG('Z', 'M', 'P', '4') }, /* some broken avi use this */ + /* some broken AVIs use this */ + { AV_CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 0 ) }, + /* some broken AVIs use this */ + { AV_CODEC_ID_MPEG4, MKTAG('Z', 'M', 'P', '4') }, { AV_CODEC_ID_MPEG4, MKTAG('D', 'I', 'V', '1') }, { AV_CODEC_ID_MPEG4, MKTAG('B', 'L', 'Z', '0') }, { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, @@ -64,7 +66,8 @@ const AVCodecTag ff_codec_bmp_tags[] = { { AV_CODEC_ID_MPEG4, MKTAG('S', 'E', 'D', 'G') }, { AV_CODEC_ID_MPEG4, MKTAG('R', 'M', 'P', '4') }, { AV_CODEC_ID_MPEG4, MKTAG('3', 'I', 'V', '2') }, - { AV_CODEC_ID_MPEG4, MKTAG('W', 'A', 'W', 'V') }, /* WaWv MPEG-4 Video Codec */ + /* WaWv MPEG-4 Video Codec */ + { AV_CODEC_ID_MPEG4, MKTAG('W', 'A', 'W', 'V') }, { AV_CODEC_ID_MPEG4, MKTAG('F', 'F', 'D', 'S') }, { AV_CODEC_ID_MPEG4, MKTAG('F', 'V', 'F', 'W') }, { AV_CODEC_ID_MPEG4, MKTAG('D', 'C', 'O', 'D') }, @@ -75,18 +78,22 @@ const AVCodecTag ff_codec_bmp_tags[] = { { AV_CODEC_ID_MPEG4, MKTAG('V', 'I', 'D', 'M') }, { AV_CODEC_ID_MPEG4, MKTAG('M', '4', 'T', '3') }, { AV_CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'X') }, - { AV_CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') }, /* flipped video */ + /* flipped video */ + { AV_CODEC_ID_MPEG4, MKTAG('H', 'D', 'X', '4') }, { AV_CODEC_ID_MPEG4, MKTAG('D', 'M', 'K', '2') }, { AV_CODEC_ID_MPEG4, MKTAG('D', 'I', 'G', 'I') }, { AV_CODEC_ID_MPEG4, MKTAG('I', 'N', 'M', 'C') }, - { AV_CODEC_ID_MPEG4, MKTAG('E', 'P', 'H', 'V') }, /* Ephv MPEG-4 */ + /* Ephv MPEG-4 */ + { AV_CODEC_ID_MPEG4, MKTAG('E', 'P', 'H', 'V') }, { AV_CODEC_ID_MPEG4, MKTAG('E', 'M', '4', 'A') }, - { AV_CODEC_ID_MPEG4, MKTAG('M', '4', 'C', 'C') }, /* Divio MPEG-4 */ + /* Divio MPEG-4 */ + { AV_CODEC_ID_MPEG4, MKTAG('M', '4', 'C', 'C') }, { AV_CODEC_ID_MPEG4, MKTAG('S', 'N', '4', '0') }, { AV_CODEC_ID_MPEG4, MKTAG('V', 'S', 'P', 'X') }, { AV_CODEC_ID_MPEG4, MKTAG('U', 'L', 'D', 'X') }, { AV_CODEC_ID_MPEG4, MKTAG('G', 'E', 'O', 'V') }, - { AV_CODEC_ID_MPEG4, MKTAG('S', 'I', 'P', 'P') }, /* Samsung SHR-6040 */ + /* Samsung SHR-6040 */ + { AV_CODEC_ID_MPEG4, MKTAG('S', 'I', 'P', 'P') }, { AV_CODEC_ID_MPEG4, MKTAG('X', 'V', 'I', 'X') }, { AV_CODEC_ID_MPEG4, MKTAG('D', 'r', 'e', 'X') }, { AV_CODEC_ID_MSMPEG4V3, MKTAG('M', 'P', '4', '3') }, @@ -111,9 +118,12 @@ const AVCodecTag ff_codec_bmp_tags[] = { { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 's', 'l') }, { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '2', '5') }, { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', '5', '0') }, - { AV_CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, /* Canopus DV */ - { AV_CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', 'H') }, /* Canopus DV */ - { AV_CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', '5') }, /* Canopus DV */ + /* Canopus DV */ + { AV_CODEC_ID_DVVIDEO, MKTAG('c', 'd', 'v', 'c') }, + /* Canopus DV */ + { AV_CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', 'H') }, + /* Canopus DV */ + { AV_CODEC_ID_DVVIDEO, MKTAG('C', 'D', 'V', '5') }, { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', ' ') }, { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'c', 's') }, { AV_CODEC_ID_DVVIDEO, MKTAG('d', 'v', 'h', '1') }, @@ -129,33 +139,43 @@ const AVCodecTag ff_codec_bmp_tags[] = { { AV_CODEC_ID_MPEG4, MKTAG( 4 , 0 , 0 , 16) }, { AV_CODEC_ID_MPEG2VIDEO, MKTAG('D', 'V', 'R', ' ') }, { AV_CODEC_ID_MPEG2VIDEO, MKTAG('M', 'M', 'E', 'S') }, - { AV_CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, /* Lead MPEG2 in avi */ + /* Lead MPEG-2 in AVI */ + { AV_CODEC_ID_MPEG2VIDEO, MKTAG('L', 'M', 'P', '2') }, { AV_CODEC_ID_MPEG2VIDEO, MKTAG('s', 'l', 'i', 'f') }, { AV_CODEC_ID_MPEG2VIDEO, MKTAG('E', 'M', '2', 'V') }, - { AV_CODEC_ID_MPEG2VIDEO, MKTAG('M', '7', '0', '1') }, /* Matrox MPEG2 intra-only */ + /* Matrox MPEG-2 intra-only */ + { AV_CODEC_ID_MPEG2VIDEO, MKTAG('M', '7', '0', '1') }, { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', 'g', 'v') }, { AV_CODEC_ID_MJPEG, MKTAG('M', 'J', 'P', 'G') }, { AV_CODEC_ID_MJPEG, MKTAG('L', 'J', 'P', 'G') }, { AV_CODEC_ID_MJPEG, MKTAG('d', 'm', 'b', '1') }, { AV_CODEC_ID_MJPEG, MKTAG('m', 'j', 'p', 'a') }, { AV_CODEC_ID_LJPEG, MKTAG('L', 'J', 'P', 'G') }, - { AV_CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, /* Pegasus lossless JPEG */ - { AV_CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - encoder */ + /* Pegasus lossless JPEG */ + { AV_CODEC_ID_MJPEG, MKTAG('J', 'P', 'G', 'L') }, + /* JPEG-LS custom FOURCC for AVI - encoder */ + { AV_CODEC_ID_JPEGLS, MKTAG('M', 'J', 'L', 'S') }, { AV_CODEC_ID_JPEGLS, MKTAG('M', 'J', 'P', 'G') }, - { AV_CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, /* JPEG-LS custom FOURCC for avi - decoder */ + /* JPEG-LS custom FOURCC for AVI - decoder */ + { AV_CODEC_ID_MJPEG, MKTAG('M', 'J', 'L', 'S') }, { AV_CODEC_ID_MJPEG, MKTAG('j', 'p', 'e', 'g') }, { AV_CODEC_ID_MJPEG, MKTAG('I', 'J', 'P', 'G') }, { AV_CODEC_ID_MJPEG, MKTAG('A', 'V', 'R', 'n') }, { AV_CODEC_ID_MJPEG, MKTAG('A', 'C', 'D', 'V') }, { AV_CODEC_ID_MJPEG, MKTAG('Q', 'I', 'V', 'G') }, - { AV_CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, /* SL M-JPEG */ - { AV_CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, /* Creative Webcam JPEG */ - { AV_CODEC_ID_MJPEG, MKTAG('I', 'J', 'L', 'V') }, /* Intel JPEG Library Video Codec */ - { AV_CODEC_ID_MJPEG, MKTAG('M', 'V', 'J', 'P') }, /* Midvid JPEG Video Codec */ + /* SL M-JPEG */ + { AV_CODEC_ID_MJPEG, MKTAG('S', 'L', 'M', 'J') }, + /* Creative Webcam JPEG */ + { AV_CODEC_ID_MJPEG, MKTAG('C', 'J', 'P', 'G') }, + /* Intel JPEG Library Video Codec */ + { AV_CODEC_ID_MJPEG, MKTAG('I', 'J', 'L', 'V') }, + /* Midvid JPEG Video Codec */ + { AV_CODEC_ID_MJPEG, MKTAG('M', 'V', 'J', 'P') }, { AV_CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '1') }, { AV_CODEC_ID_MJPEG, MKTAG('A', 'V', 'I', '2') }, { AV_CODEC_ID_MJPEG, MKTAG('M', 'T', 'S', 'J') }, - { AV_CODEC_ID_MJPEG, MKTAG('Z', 'J', 'P', 'G') }, /* Paradigm Matrix M-JPEG Codec */ + /* Paradigm Matrix M-JPEG Codec */ + { AV_CODEC_ID_MJPEG, MKTAG('Z', 'J', 'P', 'G') }, { AV_CODEC_ID_MJPEG, MKTAG('M', 'M', 'J', 'P') }, { AV_CODEC_ID_HUFFYUV, MKTAG('H', 'F', 'Y', 'U') }, { AV_CODEC_ID_FFVHUFF, MKTAG('F', 'F', 'V', 'H') }, @@ -185,7 +205,8 @@ const AVCodecTag ff_codec_bmp_tags[] = { { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '8', ' ', ' ') }, { AV_CODEC_ID_RAWVIDEO, MKTAG('H', 'D', 'Y', 'C') }, { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', 'V', 'U', '9') }, - { AV_CODEC_ID_RAWVIDEO, MKTAG('V', 'D', 'T', 'Z') }, /* SoftLab-NSK VideoTizer */ + /* SoftLab-NSK VideoTizer */ + { AV_CODEC_ID_RAWVIDEO, MKTAG('V', 'D', 'T', 'Z') }, { AV_CODEC_ID_RAWVIDEO, MKTAG('Y', '4', '1', '1') }, { AV_CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '1', '2') }, { AV_CODEC_ID_RAWVIDEO, MKTAG('N', 'V', '2', '1') }, @@ -296,17 +317,20 @@ const AVCodecTag ff_codec_bmp_tags[] = { const AVCodecTag ff_codec_wav_tags[] = { { AV_CODEC_ID_PCM_S16LE, 0x0001 }, - { AV_CODEC_ID_PCM_U8, 0x0001 }, /* must come after s16le in this list */ + /* must come after s16le in this list */ + { AV_CODEC_ID_PCM_U8, 0x0001 }, { AV_CODEC_ID_PCM_S24LE, 0x0001 }, { AV_CODEC_ID_PCM_S32LE, 0x0001 }, { AV_CODEC_ID_ADPCM_MS, 0x0002 }, { AV_CODEC_ID_PCM_F32LE, 0x0003 }, - { AV_CODEC_ID_PCM_F64LE, 0x0003 }, /* must come after f32le in this list */ + /* must come after f32le in this list */ + { AV_CODEC_ID_PCM_F64LE, 0x0003 }, { AV_CODEC_ID_PCM_ALAW, 0x0006 }, { AV_CODEC_ID_PCM_MULAW, 0x0007 }, { AV_CODEC_ID_WMAVOICE, 0x000A }, { AV_CODEC_ID_ADPCM_IMA_WAV, 0x0011 }, - { AV_CODEC_ID_PCM_ZORK, 0x0011 }, /* must come after adpcm_ima_wav in this list */ + /* must come after adpcm_ima_wav in this list */ + { AV_CODEC_ID_PCM_ZORK, 0x0011 }, { AV_CODEC_ID_ADPCM_YAMAHA, 0x0020 }, { AV_CODEC_ID_TRUESPEECH, 0x0022 }, { AV_CODEC_ID_GSM_MS, 0x0031 }, @@ -315,8 +339,10 @@ const AVCodecTag ff_codec_wav_tags[] = { { AV_CODEC_ID_MP3, 0x0055 }, { AV_CODEC_ID_AMR_NB, 0x0057 }, { AV_CODEC_ID_AMR_WB, 0x0058 }, - { AV_CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, /* rogue format number */ - { AV_CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, /* rogue format number */ + /* rogue format number */ + { AV_CODEC_ID_ADPCM_IMA_DK4, 0x0061 }, + /* rogue format number */ + { AV_CODEC_ID_ADPCM_IMA_DK3, 0x0062 }, { AV_CODEC_ID_ADPCM_IMA_WAV, 0x0069 }, { AV_CODEC_ID_VOXWARE, 0x0075 }, { AV_CODEC_ID_AAC, 0x00ff }, @@ -332,7 +358,8 @@ const AVCodecTag ff_codec_wav_tags[] = { { AV_CODEC_ID_IAC, 0x0402 }, { AV_CODEC_ID_GSM_MS, 0x1500 }, { AV_CODEC_ID_TRUESPEECH, 0x1501 }, - { AV_CODEC_ID_AAC, 0x1600 }, /* ADTS AAC */ + /* ADTS AAC */ + { AV_CODEC_ID_AAC, 0x1600 }, { AV_CODEC_ID_AAC_LATM, 0x1602 }, { AV_CODEC_ID_AC3, 0x2000 }, { AV_CODEC_ID_DTS, 0x2001 }, @@ -341,23 +368,24 @@ const AVCodecTag ff_codec_wav_tags[] = { { AV_CODEC_ID_AAC, 0x4143 }, { AV_CODEC_ID_SPEEX, 0xA109 }, { AV_CODEC_ID_FLAC, 0xF1AC }, - { AV_CODEC_ID_ADPCM_SWF, ('S'<<8)+'F' }, - { AV_CODEC_ID_VORBIS, ('V'<<8)+'o' }, //HACK/FIXME, does vorbis in WAV/AVI have an (in)official id? + { AV_CODEC_ID_ADPCM_SWF, ('S' << 8) + 'F' }, + /* HACK/FIXME: Does Vorbis in WAV/AVI have an (in)official ID? */ + { AV_CODEC_ID_VORBIS, ('V' << 8) + 'o' }, { AV_CODEC_ID_NONE, 0 }, }; const AVMetadataConv ff_riff_info_conv[] = { - { "IART", "artist" }, - { "ICMT", "comment" }, - { "ICOP", "copyright" }, - { "ICRD", "date" }, - { "IGNR", "genre" }, - { "ILNG", "language" }, - { "INAM", "title" }, - { "IPRD", "album" }, - { "IPRT", "track" }, - { "ISFT", "encoder" }, - { "ITCH", "encoded_by"}, + { "IART", "artist" }, + { "ICMT", "comment" }, + { "ICOP", "copyright" }, + { "ICRD", "date" }, + { "IGNR", "genre" }, + { "ILNG", "language" }, + { "INAM", "title" }, + { "IPRD", "album" }, + { "IPRT", "track" }, + { "ISFT", "encoder" }, + { "ITCH", "encoded_by" }, { 0 }, }; @@ -387,51 +415,57 @@ int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc) int hdrsize = 18; int waveformatextensible; uint8_t temp[256]; - uint8_t *riff_extradata= temp; - uint8_t *riff_extradata_start= temp; + uint8_t *riff_extradata = temp; + uint8_t *riff_extradata_start = temp; - if(!enc->codec_tag || enc->codec_tag > 0xffff) + if (!enc->codec_tag || enc->codec_tag > 0xffff) return -1; /* We use the known constant frame size for the codec if known, otherwise - fallback to using AVCodecContext.frame_size, which is not as reliable - for indicating packet duration */ + * fall back on using AVCodecContext.frame_size, which is not as reliable + * for indicating packet duration. */ frame_size = av_get_audio_frame_duration(enc, 0); if (!frame_size) frame_size = enc->frame_size; - waveformatextensible = (enc->channels > 2 && enc->channel_layout) - || enc->sample_rate > 48000 - || av_get_bits_per_sample(enc->codec_id) > 16; + waveformatextensible = (enc->channels > 2 && enc->channel_layout) || + enc->sample_rate > 48000 || + av_get_bits_per_sample(enc->codec_id) > 16; - if (waveformatextensible) { + if (waveformatextensible) avio_wl16(pb, 0xfffe); - } else { + else avio_wl16(pb, enc->codec_tag); - } + avio_wl16(pb, enc->channels); avio_wl32(pb, enc->sample_rate); - if (enc->codec_id == AV_CODEC_ID_MP2 || enc->codec_id == AV_CODEC_ID_MP3 || enc->codec_id == AV_CODEC_ID_GSM_MS) { + if (enc->codec_id == AV_CODEC_ID_MP2 || + enc->codec_id == AV_CODEC_ID_MP3 || + enc->codec_id == AV_CODEC_ID_GSM_MS) { bps = 0; } else { if (!(bps = av_get_bits_per_sample(enc->codec_id))) { if (enc->bits_per_coded_sample) bps = enc->bits_per_coded_sample; else - bps = 16; // default to 16 + 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 (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 == AV_CODEC_ID_MP2 || enc->codec_id == AV_CODEC_ID_MP3) { - /* this is wrong, but it seems many demuxers do not work if this is set - correctly */ + if (enc->codec_id == AV_CODEC_ID_MP2 || + enc->codec_id == AV_CODEC_ID_MP3) { + /* This is wrong, but it seems many demuxers do not work if this + * is set correctly. */ blkalign = frame_size; - //blkalign = 144 * enc->bit_rate/enc->sample_rate; + // blkalign = 144 * enc->bit_rate/enc->sample_rate; } else if (enc->codec_id == AV_CODEC_ID_AC3) { - blkalign = 3840; //maximum bytes per frame + blkalign = 3840; /* maximum bytes per frame */ } else if (enc->block_align != 0) { /* specified by the codec */ blkalign = enc->block_align; } else @@ -447,8 +481,8 @@ int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc) bytespersec = enc->bit_rate / 8; } avio_wl32(pb, bytespersec); /* bytes per second */ - avio_wl16(pb, blkalign); /* block align */ - avio_wl16(pb, bps); /* bits per sample */ + avio_wl16(pb, blkalign); /* block align */ + avio_wl16(pb, bps); /* bits per sample */ if (enc->codec_id == AV_CODEC_ID_MP3) { hdrsize += 12; bytestream_put_le16(&riff_extradata, 1); /* wID */ @@ -458,28 +492,43 @@ int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc) bytestream_put_le16(&riff_extradata, 1393); /* nCodecDelay */ } else if (enc->codec_id == AV_CODEC_ID_MP2) { hdrsize += 22; - bytestream_put_le16(&riff_extradata, 2); /* fwHeadLayer */ - bytestream_put_le32(&riff_extradata, enc->bit_rate); /* dwHeadBitrate */ - bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8); /* fwHeadMode */ - bytestream_put_le16(&riff_extradata, 0); /* fwHeadModeExt */ - bytestream_put_le16(&riff_extradata, 1); /* wHeadEmphasis */ - bytestream_put_le16(&riff_extradata, 16); /* fwHeadFlags */ - bytestream_put_le32(&riff_extradata, 0); /* dwPTSLow */ - bytestream_put_le32(&riff_extradata, 0); /* dwPTSHigh */ - } else if (enc->codec_id == AV_CODEC_ID_GSM_MS || enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) { + /* fwHeadLayer */ + bytestream_put_le16(&riff_extradata, 2); + /* dwHeadBitrate */ + bytestream_put_le32(&riff_extradata, enc->bit_rate); + /* fwHeadMode */ + bytestream_put_le16(&riff_extradata, enc->channels == 2 ? 1 : 8); + /* fwHeadModeExt */ + bytestream_put_le16(&riff_extradata, 0); + /* wHeadEmphasis */ + bytestream_put_le16(&riff_extradata, 1); + /* fwHeadFlags */ + bytestream_put_le16(&riff_extradata, 16); + /* dwPTSLow */ + bytestream_put_le32(&riff_extradata, 0); + /* dwPTSHigh */ + bytestream_put_le32(&riff_extradata, 0); + } else if (enc->codec_id == AV_CODEC_ID_GSM_MS || + enc->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) { hdrsize += 2; - bytestream_put_le16(&riff_extradata, frame_size); /* wSamplesPerBlock */ - } else if(enc->extradata_size){ - riff_extradata_start= enc->extradata; - riff_extradata= enc->extradata + enc->extradata_size; - hdrsize += enc->extradata_size; + /* wSamplesPerBlock */ + bytestream_put_le16(&riff_extradata, frame_size); + } else if (enc->extradata_size) { + riff_extradata_start = enc->extradata; + riff_extradata = enc->extradata + enc->extradata_size; + hdrsize += enc->extradata_size; } - if(waveformatextensible) { /* write WAVEFORMATEXTENSIBLE extensions */ + /* write WAVEFORMATEXTENSIBLE extensions */ + if (waveformatextensible) { hdrsize += 22; - avio_wl16(pb, riff_extradata - riff_extradata_start + 22); /* 22 is WAVEFORMATEXTENSIBLE size */ - avio_wl16(pb, bps); /* ValidBitsPerSample || SamplesPerBlock || Reserved */ - avio_wl32(pb, enc->channel_layout); /* dwChannelMask */ - avio_wl32(pb, enc->codec_tag); /* GUID + next 3 */ + /* 22 is WAVEFORMATEXTENSIBLE size */ + avio_wl16(pb, riff_extradata - riff_extradata_start + 22); + /* ValidBitsPerSample || SamplesPerBlock || Reserved */ + avio_wl16(pb, bps); + /* dwChannelMask */ + avio_wl32(pb, enc->channel_layout); + /* GUID + next 3 */ + avio_wl32(pb, enc->codec_tag); avio_wl32(pb, 0x00100000); avio_wl32(pb, 0xAA000080); avio_wl32(pb, 0x719B3800); @@ -487,7 +536,7 @@ int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc) avio_wl16(pb, riff_extradata - riff_extradata_start); /* cbSize */ } avio_write(pb, riff_extradata_start, riff_extradata - riff_extradata_start); - if(hdrsize&1){ + if (hdrsize & 1) { hdrsize++; avio_w8(pb, 0); } @@ -496,15 +545,18 @@ int ff_put_wav_header(AVIOContext *pb, AVCodecContext *enc) } /* BITMAPINFOHEADER header */ -void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf) +void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, + const AVCodecTag *tags, int for_asf) { - avio_wl32(pb, 40 + enc->extradata_size); /* size */ + /* size */ + avio_wl32(pb, 40 + enc->extradata_size); avio_wl32(pb, enc->width); //We always store RGB TopDown avio_wl32(pb, enc->codec_tag ? enc->height : -enc->height); - avio_wl16(pb, 1); /* planes */ - - avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* depth */ + /* planes */ + avio_wl16(pb, 1); + /* depth */ + avio_wl16(pb, enc->bits_per_coded_sample ? enc->bits_per_coded_sample : 24); /* compression type */ avio_wl32(pb, enc->codec_tag); avio_wl32(pb, enc->width * enc->height * 3); @@ -519,34 +571,36 @@ void ff_put_bmp_header(AVIOContext *pb, AVCodecContext *enc, const AVCodecTag *t avio_w8(pb, 0); } -void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, int *au_ssize, int *au_scale) +void ff_parse_specific_params(AVCodecContext *stream, int *au_rate, + int *au_ssize, int *au_scale) { int gcd; int audio_frame_size; /* We use the known constant frame size for the codec if known, otherwise - fallback to using AVCodecContext.frame_size, which is not as reliable - for indicating packet duration */ + * fall back on using AVCodecContext.frame_size, which is not as reliable + * for indicating packet duration. */ audio_frame_size = av_get_audio_frame_duration(stream, 0); if (!audio_frame_size) audio_frame_size = stream->frame_size; - *au_ssize= stream->block_align; + *au_ssize = stream->block_align; if (audio_frame_size && stream->sample_rate) { *au_scale = audio_frame_size; - *au_rate= stream->sample_rate; - }else if(stream->codec_type == AVMEDIA_TYPE_VIDEO || - stream->codec_type == AVMEDIA_TYPE_DATA || - stream->codec_type == AVMEDIA_TYPE_SUBTITLE){ - *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; + *au_rate = stream->sample_rate; + } else if (stream->codec_type == AVMEDIA_TYPE_VIDEO || + stream->codec_type == AVMEDIA_TYPE_DATA || + stream->codec_type == AVMEDIA_TYPE_SUBTITLE) { + *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); + gcd = av_gcd(*au_scale, *au_rate); *au_scale /= gcd; - *au_rate /= gcd; + *au_rate /= gcd; } void ff_riff_write_info_tag(AVIOContext *pb, const char *tag, const char *str) @@ -566,17 +620,16 @@ static const char riff_tags[][5] = { "IARL", "IART", "ICMS", "ICMT", "ICOP", "ICRD", "ICRP", "IDIM", "IDPI", "IENG", "IGNR", "IKEY", "ILGT", "ILNG", "IMED", "INAM", "IPLT", "IPRD", "IPRT", "ISBJ", "ISFT", "ISHP", "ISRC", "ISRF", "ITCH", - {0} + { 0 } }; static int riff_has_valid_tags(AVFormatContext *s) { int i; - for (i = 0; *riff_tags[i]; i++) { + for (i = 0; *riff_tags[i]; i++) if (av_dict_get(s->metadata, riff_tags[i], NULL, AV_DICT_MATCH_CASE)) return 1; - } return 0; } @@ -596,13 +649,13 @@ void ff_riff_write_info(AVFormatContext *s) list_pos = ff_start_tag(pb, "LIST"); ffio_wfourcc(pb, "INFO"); - for (i = 0; *riff_tags[i]; i++) { - if ((t = av_dict_get(s->metadata, riff_tags[i], NULL, AV_DICT_MATCH_CASE))) + for (i = 0; *riff_tags[i]; i++) + if ((t = av_dict_get(s->metadata, riff_tags[i], + NULL, AV_DICT_MATCH_CASE))) ff_riff_write_info_tag(s->pb, t->key, t->value); - } ff_end_tag(pb, list_pos); } -#endif //CONFIG_MUXERS +#endif /* CONFIG_MUXERS */ #if CONFIG_DEMUXERS /* We could be given one of the three possible structures here: @@ -616,33 +669,34 @@ int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size) { int id; - id = avio_rl16(pb); - codec->codec_type = AVMEDIA_TYPE_AUDIO; - codec->codec_tag = id; - codec->channels = avio_rl16(pb); + id = avio_rl16(pb); + codec->codec_type = AVMEDIA_TYPE_AUDIO; + codec->codec_tag = id; + codec->channels = avio_rl16(pb); codec->sample_rate = avio_rl32(pb); - codec->bit_rate = avio_rl32(pb) * 8; + codec->bit_rate = avio_rl32(pb) * 8; codec->block_align = avio_rl16(pb); if (size == 14) { /* We're dealing with plain vanilla WAVEFORMAT */ codec->bits_per_coded_sample = 8; - }else + } else codec->bits_per_coded_sample = avio_rl16(pb); if (size >= 18) { /* We're obviously dealing with WAVEFORMATEX */ int cbSize = avio_rl16(pb); /* cbSize */ - size -= 18; + size -= 18; cbSize = FFMIN(size, cbSize); if (cbSize >= 22 && id == 0xfffe) { /* WAVEFORMATEXTENSIBLE */ codec->bits_per_coded_sample = avio_rl16(pb); - codec->channel_layout = avio_rl32(pb); /* dwChannelMask */ - id = avio_rl32(pb); /* 4 first bytes of GUID */ + codec->channel_layout = avio_rl32(pb); /* dwChannelMask */ + id = avio_rl32(pb); /* 4 first bytes of GUID */ avio_skip(pb, 12); /* skip end of GUID */ cbSize -= 22; - size -= 22; + size -= 22; } codec->extradata_size = cbSize; if (cbSize > 0) { av_free(codec->extradata); - codec->extradata = av_mallocz(codec->extradata_size + FF_INPUT_BUFFER_PADDING_SIZE); + codec->extradata = av_mallocz(codec->extradata_size + + FF_INPUT_BUFFER_PADDING_SIZE); if (!codec->extradata) return AVERROR(ENOMEM); avio_read(pb, codec->extradata, codec->extradata_size); @@ -655,7 +709,8 @@ int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size) } codec->codec_id = ff_wav_codec_get_id(id, codec->bits_per_coded_sample); if (codec->codec_id == AV_CODEC_ID_AAC_LATM) { - /* channels and sample_rate values are those prior to applying SBR and/or PS */ + /* Channels and sample_rate values are those prior to applying SBR + * and/or PS. */ codec->channels = 0; codec->sample_rate = 0; } @@ -666,7 +721,6 @@ int ff_get_wav_header(AVIOContext *pb, AVCodecContext *codec, int size) return 0; } - enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps) { enum AVCodecID id; @@ -677,7 +731,7 @@ enum AVCodecID ff_wav_codec_get_id(unsigned int tag, int bps) if (id == AV_CODEC_ID_PCM_S16LE) id = ff_get_pcm_codec_id(bps, 0, 0, ~1); else if (id == AV_CODEC_ID_PCM_F32LE) - id = ff_get_pcm_codec_id(bps, 1, 0, 0); + id = ff_get_pcm_codec_id(bps, 1, 0, 0); if (id == AV_CODEC_ID_ADPCM_IMA_WAV && bps == 8) id = AV_CODEC_ID_PCM_ZORK; @@ -688,11 +742,11 @@ int ff_get_bmp_header(AVIOContext *pb, AVStream *st) { int tag1; avio_rl32(pb); /* size */ - st->codec->width = avio_rl32(pb); + st->codec->width = avio_rl32(pb); st->codec->height = (int32_t)avio_rl32(pb); avio_rl16(pb); /* planes */ - st->codec->bits_per_coded_sample= avio_rl16(pb); /* depth */ - tag1 = avio_rl32(pb); + st->codec->bits_per_coded_sample = avio_rl16(pb); /* depth */ + tag1 = avio_rl32(pb); avio_rl32(pb); /* ImageSize */ avio_rl32(pb); /* XPelsPerMeter */ avio_rl32(pb); /* YPelsPerMeter */ @@ -707,18 +761,21 @@ int ff_read_riff_info(AVFormatContext *s, int64_t size) AVIOContext *pb = s->pb; start = avio_tell(pb); - end = start + size; + end = start + size; - while ((cur = avio_tell(pb)) >= 0 && cur <= end - 8 /* = tag + size */) { + while ((cur = avio_tell(pb)) >= 0 && + cur <= end - 8 /* = tag + size */) { uint32_t chunk_code; int64_t chunk_size; - char key[5] = {0}; + char key[5] = { 0 }; char *value; chunk_code = avio_rl32(pb); chunk_size = avio_rl32(pb); - if (chunk_size > end || end - chunk_size < cur || chunk_size == UINT_MAX) { + if (chunk_size > end || + end - chunk_size < cur || + chunk_size == UINT_MAX) { av_log(s, AV_LOG_WARNING, "too big INFO subchunk\n"); break; } @@ -733,7 +790,8 @@ int ff_read_riff_info(AVFormatContext *s, int64_t size) value = av_malloc(chunk_size + 1); if (!value) { - av_log(s, AV_LOG_ERROR, "out of memory, unable to read INFO tag\n"); + av_log(s, AV_LOG_ERROR, + "out of memory, unable to read INFO tag\n"); return AVERROR(ENOMEM); } @@ -741,7 +799,8 @@ int ff_read_riff_info(AVFormatContext *s, int64_t size) if (avio_read(pb, value, chunk_size) != chunk_size) { av_free(value); - av_log(s, AV_LOG_WARNING, "premature end of file while reading INFO tag\n"); + av_log(s, AV_LOG_WARNING, + "premature end of file while reading INFO tag\n"); break; } @@ -752,4 +811,4 @@ int ff_read_riff_info(AVFormatContext *s, int64_t size) return 0; } -#endif // CONFIG_DEMUXERS +#endif /* CONFIG_DEMUXERS */