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new YUV formats for correct JPEG YUV support - added automatic pixel format conversion guessing (minimize loss and size)

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Originally committed as revision 1798 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Fabrice Bellard 2003-04-20 16:15:43 +00:00
parent cff5e386bf
commit fab219971e
1 changed files with 17 additions and 2 deletions
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19
libavcodec/avcodec.h
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@ -15,8 +15,8 @@ extern "C" {
#define LIBAVCODEC_VERSION_INT 0x000406
#define LIBAVCODEC_VERSION "0.4.6"
#define LIBAVCODEC_BUILD 4664
#define LIBAVCODEC_BUILD_STR "4664"
#define LIBAVCODEC_BUILD 4665
#define LIBAVCODEC_BUILD_STR "4665"
#define LIBAVCODEC_IDENT "FFmpeg" LIBAVCODEC_VERSION "b" LIBAVCODEC_BUILD_STR
@ -93,6 +93,9 @@ enum PixelFormat {
PIX_FMT_MONOWHITE, ///< 0 is white
PIX_FMT_MONOBLACK, ///< 0 is black
PIX_FMT_PAL8, ///< 8 bit with RGBA palette
PIX_FMT_YUVJ420P, ///< YUV full scale (jpeg)
PIX_FMT_YUVJ422P, ///< YUV full scale (jpeg)
PIX_FMT_YUVJ444P, ///< YUV full scale (jpeg)
PIX_FMT_NB,
};
@ -1261,6 +1264,18 @@ int avpicture_get_size(int pix_fmt, int width, int height);
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
const char *avcodec_get_pix_fmt_name(int pix_fmt);
#define FF_LOSS_RESOLUTION 0x0001 /* loss due to resolution change */
#define FF_LOSS_DEPTH 0x0002 /* loss due to color depth change */
#define FF_LOSS_COLORSPACE 0x0004 /* loss due to color space conversion */
#define FF_LOSS_ALPHA 0x0008 /* loss of alpha bits */
#define FF_LOSS_COLORQUANT 0x0010 /* loss due to color quantization */
#define FF_LOSS_CHROMA 0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
int has_alpha);
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
int has_alpha, int *loss_ptr);
/* convert among pixel formats */
int img_convert(AVPicture *dst, int dst_pix_fmt,
AVPicture *src, int pix_fmt,