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| author | Juanjo <pulento@users.sourceforge.net> | 2002-04-15 02:28:05 +0000 |
|---|---|---|
| committer | Juanjo <pulento@users.sourceforge.net> | 2002-04-15 02:28:05 +0000 |
| commit | 4b1f4f236b1019e69396676f1eb455bbea0d8e17 (patch) | |
| tree | aac32420abdbb0e34991150d71f2d86bac11bcae /libav/wav.c | |
| parent | 101bea5f2272dfcca084aeeb78ccb1c2e925b12b (diff) | |
| download | ffmpeg-4b1f4f236b1019e69396676f1eb455bbea0d8e17.tar.gz | |
- Versions defined for libav/libavcodec.
- Bug fix in wav muxer for MP2 audio.
- ffmpeg/libavcodec version in MPEG-4 user data.
Originally committed as revision 400 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libav/wav.c')
| -rw-r--r-- | libav/wav.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/libav/wav.c b/libav/wav.c index 0023ac608a..d92b20c5e8 100644 --- a/libav/wav.c +++ b/libav/wav.c @@ -20,9 +20,8 @@ #include "avi.h" CodecTag codec_wav_tags[] = { - { CODEC_ID_MP2, 0x55 }, - { CODEC_ID_MP3LAME, 0x55 }, { CODEC_ID_MP2, 0x50 }, + { CODEC_ID_MP3LAME, 0x55 }, { CODEC_ID_AC3, 0x2000 }, { CODEC_ID_PCM_S16LE, 0x01 }, { CODEC_ID_PCM_U8, 0x01 }, /* must come after s16le in this list */ @@ -39,7 +38,7 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc) tag = codec_get_tag(codec_wav_tags, enc->codec_id); if (tag == 0) return -1; - put_le16(pb, tag); + put_le16(pb, tag); put_le16(pb, enc->channels); put_le32(pb, enc->sample_rate); if (enc->codec_id == CODEC_ID_PCM_U8 || @@ -52,9 +51,10 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc) bps = 16; } - if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3LAME) + if (enc->codec_id == CODEC_ID_MP2 || enc->codec_id == CODEC_ID_MP3LAME) { blkalign = 1; - else + //blkalign = 144 * enc->bit_rate/enc->sample_rate; + } else blkalign = enc->channels*bps >> 3; if (enc->codec_id == CODEC_ID_PCM_U8 || enc->codec_id == CODEC_ID_PCM_S16LE) { @@ -65,13 +65,23 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc) 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_MP2 || enc->codec_id == CODEC_ID_MP3LAME) { + if (enc->codec_id == CODEC_ID_MP3LAME) { put_le16(pb, 12); /* wav_extra_size */ 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 */ + 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 put_le16(pb, 0); /* wav_extra_size */ |