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imgconvert: Implement avcodec_find_best_pix_fmt_of_list()

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The old avcodec_find_best_pix_fmt() was insufficient due to 64 pix_fmt limit.
In ffmpeg this problem has been solved long ago through avcodec_find_best_pix_fmt2()
Today libav has added a incompatible modified version of avcodec_find_best_pix_fmt2()
under the same name, thus again breaking ABI/API ...

The avcodec_find_best_pix_fmt_of_list() added in this commit here makes the libav
API available to ffmpeg users too.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-07-15 01:50:02 +02:00
parent 23bb85b069
commit 72743aef03
1 changed files with 13 additions and 0 deletions
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13
libavcodec/imgconvert.c
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@ -576,6 +576,19 @@ enum PixelFormat avcodec_find_best_pix_fmt2(enum PixelFormat dst_pix_fmt1, enum
return dst_pix_fmt;
}
enum PixelFormat avcodec_find_best_pix_fmt_of_list(enum PixelFormat *pix_fmt_list,
enum PixelFormat src_pix_fmt,
int has_alpha, int *loss_ptr){
int i;
enum PixelFormat best = PIX_FMT_NONE;
for(i=0; pix_fmt_list[i] != PIX_FMT_NONE; i++)
best = avcodec_find_best_pix_fmt2(best, pix_fmt_list[i], src_pix_fmt, has_alpha, loss_ptr);
return best;
}
void av_picture_copy(AVPicture *dst, const AVPicture *src,
enum PixelFormat pix_fmt, int width, int height)
{