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* Make put_wav_header return the number of bytes that it put.

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Originally committed as revision 468 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Philip Gladstone 2002-05-09 01:21:56 +00:00
parent ec6ac5e1fb
commit afc25d93ea
1 changed files with 5 additions and 1 deletions
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6
libav/wav.c
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@ -31,9 +31,11 @@ CodecTag codec_wav_tags[] = {
};
/* WAVEFORMATEX header */
/* returns the size or -1 on error */
int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
{
int tag, bps, blkalign, bytespersec;
int hdrsize = 18;
tag = codec_get_tag(codec_wav_tags, enc->codec_id);
if (tag == 0)
@ -67,6 +69,7 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
put_le16(pb, bps); /* bits per sample */
if (enc->codec_id == CODEC_ID_MP3LAME) {
put_le16(pb, 12); /* wav_extra_size */
hdrsize += 12;
put_le16(pb, 1); /* wID */
put_le32(pb, 2); /* fdwFlags */
put_le16(pb, 1152); /* nBlockSize */
@ -74,6 +77,7 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
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 */
@ -85,7 +89,7 @@ int put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
} else
put_le16(pb, 0); /* wav_extra_size */
return 0;
return hdrsize;
}
int wav_codec_get_id(unsigned int tag, int bps)