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pixdesc: add function to return pixel format with swapped endiannes

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This commit is contained in:
Janne Grunau
2013-04-26 14:43:02 +02:00
parent 6e293d111f
commit 74652af821
3 changed files with 60 additions and 1 deletions
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48
libavutil/pixdesc.c
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@@ -1512,3 +1512,51 @@ int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt)
ret += planes[i]; ret += planes[i];
return ret; return ret;
} }
enum AVPixelFormat av_pix_fmt_swap_endianness(enum AVPixelFormat pix_fmt)
{
#define PIX_FMT_SWAP_ENDIANNESS(fmt) \
case AV_PIX_FMT_ ## fmt ## BE: return AV_PIX_FMT_ ## fmt ## LE; \
case AV_PIX_FMT_ ## fmt ## LE: return AV_PIX_FMT_ ## fmt ## BE
switch (pix_fmt) {
PIX_FMT_SWAP_ENDIANNESS(GRAY16);
PIX_FMT_SWAP_ENDIANNESS(RGB48);
PIX_FMT_SWAP_ENDIANNESS(RGB565);
PIX_FMT_SWAP_ENDIANNESS(RGB555);
PIX_FMT_SWAP_ENDIANNESS(RGB444);
PIX_FMT_SWAP_ENDIANNESS(BGR48);
PIX_FMT_SWAP_ENDIANNESS(BGR565);
PIX_FMT_SWAP_ENDIANNESS(BGR555);
PIX_FMT_SWAP_ENDIANNESS(BGR444);
PIX_FMT_SWAP_ENDIANNESS(YUV420P9);
PIX_FMT_SWAP_ENDIANNESS(YUV422P9);
PIX_FMT_SWAP_ENDIANNESS(YUV444P9);
PIX_FMT_SWAP_ENDIANNESS(YUV420P10);
PIX_FMT_SWAP_ENDIANNESS(YUV422P10);
PIX_FMT_SWAP_ENDIANNESS(YUV444P10);
PIX_FMT_SWAP_ENDIANNESS(YUV420P16);
PIX_FMT_SWAP_ENDIANNESS(YUV422P16);
PIX_FMT_SWAP_ENDIANNESS(YUV444P16);
PIX_FMT_SWAP_ENDIANNESS(GBRP9);
PIX_FMT_SWAP_ENDIANNESS(GBRP10);
PIX_FMT_SWAP_ENDIANNESS(GBRP16);
PIX_FMT_SWAP_ENDIANNESS(YUVA420P9);
PIX_FMT_SWAP_ENDIANNESS(YUVA422P9);
PIX_FMT_SWAP_ENDIANNESS(YUVA444P9);
PIX_FMT_SWAP_ENDIANNESS(YUVA420P10);
PIX_FMT_SWAP_ENDIANNESS(YUVA422P10);
PIX_FMT_SWAP_ENDIANNESS(YUVA444P10);
PIX_FMT_SWAP_ENDIANNESS(YUVA420P16);
PIX_FMT_SWAP_ENDIANNESS(YUVA422P16);
PIX_FMT_SWAP_ENDIANNESS(YUVA444P16);
PIX_FMT_SWAP_ENDIANNESS(XYZ12);
default:
return AV_PIX_FMT_NONE;
}
#undef PIX_FMT_SWAP_ENDIANNESS
}

11
libavutil/pixdesc.h
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@@ -226,4 +226,15 @@ int av_pix_fmt_get_chroma_sub_sample(enum AVPixelFormat pix_fmt,
int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt); int av_pix_fmt_count_planes(enum AVPixelFormat pix_fmt);
/**
* Utility function to swap the endianness of a pixel format.
*
* @param[in] pix_fmt the pixel format
*
* @return pixel format with swapped endianness if it exists,
* otherwise AV_PIX_FMT_NONE
*/
enum AVPixelFormat av_pix_fmt_swap_endianness(enum AVPixelFormat pix_fmt);
#endif /* AVUTIL_PIXDESC_H */ #endif /* AVUTIL_PIXDESC_H */

2
libavutil/version.h
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@@ -38,7 +38,7 @@
#define LIBAVUTIL_VERSION_MAJOR 52 #define LIBAVUTIL_VERSION_MAJOR 52
#define LIBAVUTIL_VERSION_MINOR 10 #define LIBAVUTIL_VERSION_MINOR 10
#define LIBAVUTIL_VERSION_MICRO 0 #define LIBAVUTIL_VERSION_MICRO 1
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \ LIBAVUTIL_VERSION_MINOR, \