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imgconvert: add avcodec_find_best_pix_fmt_of_2() 

and deprecate avcodec_find_best_pix_fmt2()

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2012-07-25 01:37:38 +02:00
parent fe79fc2ea5
commit 2a54ae9df8
2 changed files with 18 additions and 8 deletions
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14
libavcodec/avcodec.h
View File

@ -4512,7 +4512,7 @@ int avcodec_get_pix_fmt_loss(enum PixelFormat dst_pix_fmt, enum PixelFormat src_
#if FF_API_FIND_BEST_PIX_FMT
/**
* @deprecated use avcodec_find_best_pix_fmt2() instead.
* @deprecated use avcodec_find_best_pix_fmt_of_2() instead.
*
* Find the best pixel format to convert to given a certain source pixel
* format. When converting from one pixel format to another, information loss
@ -4547,7 +4547,7 @@ enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelForma
* format. When converting from one pixel format to another, information loss
* may occur. For example, when converting from RGB24 to GRAY, the color
* information will be lost. Similarly, other losses occur when converting from
* some formats to other formats. avcodec_find_best_pix_fmt2() searches which of
* some formats to other formats. avcodec_find_best_pix_fmt_of_2() searches which of
* the given pixel formats should be used to suffer the least amount of loss.
* The pixel formats from which it chooses one, are determined by the
* pix_fmt_list parameter.
@ -4568,7 +4568,7 @@ enum PixelFormat avcodec_find_best_pix_fmt_of_list(enum PixelFormat *pix_fmt_lis
* format and a selection of two destination pixel formats. When converting from
* one pixel format to another, information loss may occur. For example, when converting
* from RGB24 to GRAY, the color information will be lost. Similarly, other losses occur when
* converting from some formats to other formats. avcodec_find_best_pix_fmt2() selects which of
* converting from some formats to other formats. avcodec_find_best_pix_fmt_of_2() selects which of
* the given pixel formats should be used to suffer the least amount of loss.
*
* If one of the destination formats is PIX_FMT_NONE the other pixel format (if valid) will be
@ -4580,8 +4580,8 @@ enum PixelFormat avcodec_find_best_pix_fmt_of_list(enum PixelFormat *pix_fmt_lis
* dst_pix_fmt2= PIX_FMT_GRAY8;
* dst_pix_fmt3= PIX_FMT_RGB8;
* loss= FF_LOSS_CHROMA; // don't care about chroma loss, so chroma loss will be ignored.
* dst_pix_fmt = avcodec_find_best_pix_fmt2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, alpha, &loss);
* dst_pix_fmt = avcodec_find_best_pix_fmt2(dst_pix_fmt, dst_pix_fmt3, src_pix_fmt, alpha, &loss);
* dst_pix_fmt = avcodec_find_best_pix_fmt_of_2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, alpha, &loss);
* dst_pix_fmt = avcodec_find_best_pix_fmt_of_2(dst_pix_fmt, dst_pix_fmt3, src_pix_fmt, alpha, &loss);
* @endcode
*
* @param[in] dst_pix_fmt1 One of the two destination pixel formats to choose from
@ -4593,6 +4593,10 @@ enum PixelFormat avcodec_find_best_pix_fmt_of_list(enum PixelFormat *pix_fmt_lis
* that occurs when converting from src to selected dst pixel format.
* @return The best pixel format to convert to or -1 if none was found.
*/
enum PixelFormat avcodec_find_best_pix_fmt_of_2(enum PixelFormat dst_pix_fmt1, enum PixelFormat dst_pix_fmt2,
enum PixelFormat src_pix_fmt, int has_alpha, int *loss_ptr);
attribute_deprecated
enum PixelFormat avcodec_find_best_pix_fmt2(enum PixelFormat dst_pix_fmt1, enum PixelFormat dst_pix_fmt2,
enum PixelFormat src_pix_fmt, int has_alpha, int *loss_ptr);

12
libavcodec/imgconvert.c
View File

@ -529,13 +529,13 @@ enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelForma
dst_pix_fmt = PIX_FMT_NONE; /* so first iteration doesn't have to be treated special */
for(i = 0; i< FFMIN(PIX_FMT_NB, 64); i++){
if (pix_fmt_mask & (1ULL << i))
dst_pix_fmt = avcodec_find_best_pix_fmt2(dst_pix_fmt, i, src_pix_fmt, has_alpha, loss_ptr);
dst_pix_fmt = avcodec_find_best_pix_fmt_of_2(dst_pix_fmt, i, src_pix_fmt, has_alpha, loss_ptr);
}
return dst_pix_fmt;
}
#endif /* FF_API_FIND_BEST_PIX_FMT */
enum PixelFormat avcodec_find_best_pix_fmt2(enum PixelFormat dst_pix_fmt1, enum PixelFormat dst_pix_fmt2,
enum PixelFormat avcodec_find_best_pix_fmt_of_2(enum PixelFormat dst_pix_fmt1, enum PixelFormat dst_pix_fmt2,
enum PixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
{
enum PixelFormat dst_pix_fmt;
@ -577,6 +577,12 @@ enum PixelFormat avcodec_find_best_pix_fmt2(enum PixelFormat dst_pix_fmt1, enum
return dst_pix_fmt;
}
enum PixelFormat avcodec_find_best_pix_fmt2(enum PixelFormat dst_pix_fmt1, enum PixelFormat dst_pix_fmt2,
enum PixelFormat src_pix_fmt, int has_alpha, int *loss_ptr)
{
return avcodec_find_best_pix_fmt_of_2(dst_pix_fmt1, dst_pix_fmt2, src_pix_fmt, has_alpha, loss_ptr);
}
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){
@ -585,7 +591,7 @@ enum PixelFormat avcodec_find_best_pix_fmt_of_list(enum PixelFormat *pix_fmt_lis
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);
best = avcodec_find_best_pix_fmt_of_2(best, pix_fmt_list[i], src_pix_fmt, has_alpha, loss_ptr);
return best;
}