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better planar support, chroma subsampling support and Y8/Y800 support

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6539 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
alex 2002-06-23 20:42:19 +00:00
parent ffe9577241
commit 846f4abc18
1 changed files with 35 additions and 6 deletions
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41
libmpcodecs/mp_image.h
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@ -3,7 +3,7 @@
// set if buffer content shouldn't be modified:
#define MP_IMGFLAG_PRESERVE 0x01
// set if buffer content will be READED for next frame's MC: (I/P mpeg frames)
// set if buffer content will be READ for next frame's MC: (I/P mpeg frames)
#define MP_IMGFLAG_READABLE 0x02
// set if buffer is allocated (used in destination images):
#define MP_IMGFLAG_ALLOCATED 0x04
@ -41,6 +41,8 @@
// I+P+B type, requires 2+ independent static R/W and 1+ temp WO buffers
#define MP_IMGTYPE_IPB 4
#define MP_MAX_PLANES 4
typedef struct mp_image_s {
unsigned short flags;
unsigned char type;
@ -48,16 +50,27 @@ typedef struct mp_image_s {
unsigned int imgfmt;
int width,height; // stored dimensions
int x,y,w,h; // visible dimensions
unsigned char* planes[3];
unsigned int stride[3];
unsigned char* planes[MP_MAX_PLANES];
unsigned int stride[MP_MAX_PLANES];
int* qscale;
int qstride;
int num_planes;
/* these are only used by planar formats Y,U(Cb),V(Cr) */
int chroma_width;
int chroma_height;
int chroma_h_shift;
int chroma_v_shift;
} mp_image_t;
#ifdef IMGFMT_YUY2
static inline void mp_image_setfmt(mp_image_t* mpi,unsigned int out_fmt){
mpi->flags&=~(MP_IMGFLAG_PLANAR|MP_IMGFLAG_YUV|MP_IMGFLAG_SWAPPED);
mpi->imgfmt=out_fmt;
if(out_fmt == IMGFMT_MPEGPES){
mpi->bpp=0;
return;
}
mpi->num_planes=1;
if( (out_fmt&IMGFMT_RGB_MASK) == IMGFMT_RGB ){
mpi->bpp=((out_fmt&255)+7)&(~7);
return;
@ -68,6 +81,7 @@ static inline void mp_image_setfmt(mp_image_t* mpi,unsigned int out_fmt){
return;
}
mpi->flags|=MP_IMGFLAG_YUV;
mpi->num_planes=3;
switch(out_fmt){
case IMGFMT_I420:
case IMGFMT_IYUV:
@ -75,19 +89,33 @@ static inline void mp_image_setfmt(mp_image_t* mpi,unsigned int out_fmt){
case IMGFMT_YV12:
mpi->flags|=MP_IMGFLAG_PLANAR;
mpi->bpp=12;
mpi->chroma_width=(mpi->width>>1);
mpi->chroma_height=(mpi->height>>1);
mpi->chroma_h_shift=1;
mpi->chroma_v_shift=1;
return;
case IMGFMT_IF09:
mpi->num_planes=4;
case IMGFMT_YVU9:
mpi->flags|=MP_IMGFLAG_PLANAR;
mpi->bpp=9;
mpi->chroma_width=(mpi->width>>2);
mpi->chroma_height=(mpi->height>>2);
mpi->chroma_h_shift=2;
mpi->chroma_v_shift=2;
return;
case IMGFMT_Y800:
case IMGFMT_Y8:
/* they're planar ones, but for easier handling use them as packed */
// mpi->flags|=MP_IMGFLAG_PLANAR;
mpi->bpp=8;
mpi->num_planes=1;
return;
case IMGFMT_UYVY:
mpi->flags|=MP_IMGFLAG_SWAPPED;
case IMGFMT_YUY2:
mpi->bpp=16;
return;
case IMGFMT_MPEGPES:
mpi->bpp=0;
mpi->num_planes=1;
return;
}
printf("mp_image: Unknown out_fmt: 0x%X\n",out_fmt);
@ -107,6 +135,7 @@ static inline mp_image_t* new_mp_image(int w,int h){
static inline void free_mp_image(mp_image_t* mpi){
if(!mpi) return;
if(mpi->flags&MP_IMGFLAG_ALLOCATED){
/* becouse we allocate the whole image in once */
if(mpi->planes[0]) free(mpi->planes[0]);
}
free(mpi);