mpv/libmpcodecs/vd.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "mp_msg.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#include "codec-cfg.h"
//#include "mp_image.h"
#include "../libvo/img_format.h"
#include "stream.h"
#include "demuxer.h"
#include "stheader.h"
#include "vd.h"
//#include "vd_internal.h"
extern vd_functions_t mpcodecs_vd_null;
extern vd_functions_t mpcodecs_vd_cinepak;
extern vd_functions_t mpcodecs_vd_qtrpza;
extern vd_functions_t mpcodecs_vd_ffmpeg;
extern vd_functions_t mpcodecs_vd_dshow;
extern vd_functions_t mpcodecs_vd_vfw;
extern vd_functions_t mpcodecs_vd_vfwex;
extern vd_functions_t mpcodecs_vd_odivx;
extern vd_functions_t mpcodecs_vd_divx4;
extern vd_functions_t mpcodecs_vd_raw;
extern vd_functions_t mpcodecs_vd_xanim;
extern vd_functions_t mpcodecs_vd_rle;
vd_functions_t* mpcodecs_vd_drivers[] = {
&mpcodecs_vd_null,
&mpcodecs_vd_cinepak,
&mpcodecs_vd_qtrpza,
#ifdef USE_LIBAVCODEC
&mpcodecs_vd_ffmpeg,
#endif
#ifdef USE_WIN32DLL
#ifdef USE_DIRECTSHOW
&mpcodecs_vd_dshow,
#endif
&mpcodecs_vd_vfw,
&mpcodecs_vd_vfwex,
#endif
#ifdef USE_DIVX
&mpcodecs_vd_odivx,
#ifdef NEW_DECORE
&mpcodecs_vd_divx4,
#endif
#endif
&mpcodecs_vd_raw,
&mpcodecs_vd_rle,
#ifdef USE_XANIM
&mpcodecs_vd_xanim,
#endif
NULL
};
int mpcodecs_config_vo(sh_video_t *sh, int w, int h, unsigned int preferred_outfmt){
return 1;
}
static mp_image_t* static_images[2];
static mp_image_t* temp_images[1];
static mp_image_t* export_images[1];
static int static_idx=0;
// mp_imgtype: buffering type, see mp_image.h
// mp_imgflag: buffer requirements (read/write, preserve, stride limits), see mp_image.h
// returns NULL or allocated mp_image_t*
// Note: buffer allocation may be moved to mpcodecs_config_vo() later...
mp_image_t* mpcodecs_get_image(sh_video_t *sh, int mp_imgtype, int mp_imgflag, int w, int h){
mp_image_t* mpi=NULL;
int w2=(mp_imgflag&MP_IMGFLAG_ACCEPT_STRIDE)?((w+15)&(~15)):w;
// Note: we should call libvo first to check if it supports direct rendering
// and if not, then fallback to software buffers:
switch(mp_imgtype){
case MP_IMGTYPE_EXPORT:
// mpi=new_mp_image(w,h);
if(!export_images[0]) export_images[0]=new_mp_image(w2,h);
mpi=export_images[0];
break;
case MP_IMGTYPE_STATIC:
if(!static_images[0]) static_images[0]=new_mp_image(w2,h);
mpi=static_images[0];
break;
case MP_IMGTYPE_TEMP:
if(!temp_images[0]) temp_images[0]=new_mp_image(w2,h);
mpi=temp_images[0];
break;
case MP_IMGTYPE_IPB:
if(!(mp_imgflag&MP_IMGFLAG_READABLE)){ // B frame:
if(!temp_images[0]) temp_images[0]=new_mp_image(w2,h);
mpi=temp_images[0];
break;
}
case MP_IMGTYPE_IP:
if(!static_images[static_idx]) static_images[static_idx]=new_mp_image(w2,h);
mpi=static_images[static_idx];
static_idx^=1;
break;
}
if(mpi){
mpi->type=mp_imgtype;
mpi->flags&=~(MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE);
mpi->flags|=mp_imgflag&(MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE);
if((mpi->width!=w2 || mpi->height!=h) && !(mpi->flags&MP_IMGFLAG_DIRECT)){
mpi->width=w2;
mpi->height=h;
if(mpi->flags&MP_IMGFLAG_ALLOCATED){
// need to re-allocate buffer memory:
free(mpi->planes[0]);
mpi->flags&=~MP_IMGFLAG_ALLOCATED;
}
}
if(!mpi->bpp){
mp_image_setfmt(mpi,sh->codec->outfmt[sh->outfmtidx]);
if(!(mpi->flags&(MP_IMGFLAG_ALLOCATED|MP_IMGFLAG_DIRECT))
&& mpi->type>MP_IMGTYPE_EXPORT){
// non-direct and not yet allocaed image. allocate it!
printf("*** Allocating mp_image_t, %dx%dx%dbpp %s %s, %d bytes\n",
mpi->width,mpi->height,mpi->bpp,
(mpi->flags&MP_IMGFLAG_YUV)?"YUV":"RGB",
(mpi->flags&MP_IMGFLAG_PLANAR)?"planar":"packed",
mpi->bpp*mpi->width*mpi->height/8);
mpi->planes[0]=memalign(64, mpi->bpp*mpi->width*mpi->height/8);
if(mpi->flags&MP_IMGFLAG_PLANAR){
// YV12/I420. feel free to add other planar formats here...
if(!mpi->stride[0]) mpi->stride[0]=mpi->width;
if(!mpi->stride[1]) mpi->stride[1]=mpi->stride[2]=mpi->width/2;
mpi->planes[1]=mpi->planes[0]+mpi->width*mpi->height;
mpi->planes[2]=mpi->planes[1]+mpi->width*mpi->height/4;
} else {
if(!mpi->stride[0]) mpi->stride[0]=mpi->width*mpi->bpp/8;
}
mpi->flags|=MP_IMGFLAG_ALLOCATED;
}
}
}
return mpi;
}