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avformat/riffenc: correct calculation for extradata size

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In 1ec2b3de5a, the extradata size was affected when the raster was
signaled as flipped due to user-set option rather than via extradata.
This resulted in a wrong header size being written. Fixed.
This commit is contained in:
Gyan Doshi 2020-07-25 10:39:32 +05:30
parent 7c8ad72f1c
commit 93694fe777
1 changed files with 4 additions and 4 deletions
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8
libavformat/riffenc.c
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@ -209,10 +209,10 @@ int ff_put_wav_header(AVFormatContext *s, AVIOContext *pb,
void ff_put_bmp_header(AVIOContext *pb, AVCodecParameters *par,
int for_asf, int ignore_extradata, int rgb_frame_is_flipped)
{
int keep_height = (par->extradata_size >= 9 &&
!memcmp(par->extradata + par->extradata_size - 9, "BottomUp", 9)) ||
rgb_frame_is_flipped;
int extradata_size = par->extradata_size - 9*keep_height;
int flipped_extradata = (par->extradata_size >= 9 &&
!memcmp(par->extradata + par->extradata_size - 9, "BottomUp", 9));
int keep_height = flipped_extradata || rgb_frame_is_flipped;
int extradata_size = par->extradata_size - 9*flipped_extradata;
enum AVPixelFormat pix_fmt = par->format;
int pal_avi;