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| author | Carl Eugen Hoyos <cehoyos@ag.or.at> | 2011-07-12 17:35:20 +0200 |
|---|---|---|
| committer | Carl Eugen Hoyos <cehoyos@ag.or.at> | 2011-07-12 17:35:20 +0200 |
| commit | 45ecc7a294d56e41dab621512f6f70fc2578340e (patch) | |
| tree | bdf82590f52e60b6f3199d8735910b98aaa691b0 /libavformat/cafenc.c | |
| parent | afa218f372ad2616e6609e2c3b41ef458261a431 (diff) | |
| download | ffmpeg-45ecc7a294d56e41dab621512f6f70fc2578340e.tar.gz | |
Support adpcm_ima_wav and adpcm_ms in caf.
Diffstat (limited to 'libavformat/cafenc.c')
| -rw-r--r-- | libavformat/cafenc.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/libavformat/cafenc.c b/libavformat/cafenc.c index 7cb4777bc6..43f56624a7 100644 --- a/libavformat/cafenc.c +++ b/libavformat/cafenc.c @@ -47,7 +47,7 @@ static uint32_t codec_flags(enum CodecID codec_id) { } } -static uint32_t samples_per_packet(enum CodecID codec_id) { +static uint32_t samples_per_packet(enum CodecID codec_id, int channels) { switch (codec_id) { case CODEC_ID_PCM_S8: case CODEC_ID_PCM_S16LE: @@ -84,6 +84,10 @@ static uint32_t samples_per_packet(enum CodecID codec_id) { case CODEC_ID_ALAC: case CODEC_ID_QDM2: return 4096; + case CODEC_ID_ADPCM_IMA_WAV: + return (1024 - 4 * channels) * 8 / (4 * channels) + 1; + case CODEC_ID_ADPCM_MS: + return (1024 - 7 * channels) * 2 / channels + 2; default: return 0; } @@ -133,7 +137,7 @@ static int caf_write_header(AVFormatContext *s) avio_wb32(pb, codec_tag); //< mFormatID avio_wb32(pb, codec_flags(enc->codec_id)); //< mFormatFlags avio_wb32(pb, enc->block_align); //< mBytesPerPacket - avio_wb32(pb, samples_per_packet(enc->codec_id)); //< mFramesPerPacket + avio_wb32(pb, samples_per_packet(enc->codec_id, enc->channels)); //< mFramesPerPacket avio_wb32(pb, enc->channels); //< mChannelsPerFrame avio_wb32(pb, enc->bits_per_coded_sample); //< mBitsPerChannel |