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add ff_get_bmp_header

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Originally committed as revision 26091 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Peter Ross 2010-12-26 01:23:44 +00:00
parent 52654005ca
commit 456a70aeb8
3 changed files with 25 additions and 11 deletions
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17
libavformat/riff.c
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@ -440,6 +440,23 @@ int ff_put_wav_header(ByteIOContext *pb, AVCodecContext *enc)
return hdrsize;
}
int ff_get_bmp_header(ByteIOContext *pb, AVStream *st)
{
int tag1;
get_le32(pb); /* size */
st->codec->width = get_le32(pb);
st->codec->height = (int32_t)get_le32(pb);
get_le16(pb); /* planes */
st->codec->bits_per_coded_sample= get_le16(pb); /* depth */
tag1 = get_le32(pb);
get_le32(pb); /* ImageSize */
get_le32(pb); /* XPelsPerMeter */
get_le32(pb); /* YPelsPerMeter */
get_le32(pb); /* ClrUsed */
get_le32(pb); /* ClrImportant */
return tag1;
}
/* BITMAPINFOHEADER header */
void ff_put_bmp_header(ByteIOContext *pb, AVCodecContext *enc, const AVCodecTag *tags, int for_asf)
{