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| author | Mike Melanson <mike@multimedia.cx> | 2004-04-24 19:30:49 +0000 |
|---|---|---|
| committer | Mike Melanson <mike@multimedia.cx> | 2004-04-24 19:30:49 +0000 |
| commit | 7e56cd927b5842fa74ec8b5fddf6ac2b6a40145c (patch) | |
| tree | 4826b0b125e0e9ba16792f15f1c6c18359629539 /libavcodec/wmadec.c | |
| parent | 0f12310fe2b3e681889645f1427a8aeadf76b4d6 (diff) | |
| download | ffmpeg-7e56cd927b5842fa74ec8b5fddf6ac2b6a40145c.tar.gz | |
add the minimal documentation to make this decoder useful
Originally committed as revision 3059 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/wmadec.c')
| -rw-r--r-- | libavcodec/wmadec.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libavcodec/wmadec.c b/libavcodec/wmadec.c index 25498c4d28..cf2db14946 100644 --- a/libavcodec/wmadec.c +++ b/libavcodec/wmadec.c @@ -20,6 +20,15 @@ /** * @file wmadec.c * WMA compatible decoder. + * This decoder handles Microsoft Windows Media Audio data, versions 1 & 2. + * WMA v1 is identified by audio format 0x160 in Microsoft media files + * (ASF/AVI/WAV). WMA v2 is identified by audio format 0x161. + * + * To use this decoder, a calling application must supply the extra data + * bytes provided with the WMA data. These are the extra, codec-specific + * bytes at the end of a WAVEFORMATEX data structure. Transmit these bytes + * to the decoder using the extradata[_size] fields in AVCodecContext. There + * should be 4 extra bytes for v1 data and 6 extra bytes for v2 data. */ #include "avcodec.h" |