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mpv/libmpcodecs/vf.c
arpi c4d86b833e align yuv 4:2:0 y position by 2 
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5669 b3059339-0415-0410-9bf9-f77b7e298cf2
2002-04-17 21:50:25 +00:00

300 lines
10 KiB
C
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../config.h"
#include "../mp_msg.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
extern vf_info_t vf_info_vo;
extern vf_info_t vf_info_crop;
extern vf_info_t vf_info_expand;
extern vf_info_t vf_info_pp;
extern vf_info_t vf_info_scale;
extern vf_info_t vf_info_fame;
extern vf_info_t vf_info_format;
extern vf_info_t vf_info_yuy2;
extern vf_info_t vf_info_flip;
extern vf_info_t vf_info_rgb2bgr;
char** vo_plugin_args=(char**) NULL;
// list of available filters:
static vf_info_t* filter_list[]={
&vf_info_crop,
&vf_info_expand,
&vf_info_pp,
&vf_info_scale,
// &vf_info_osd,
&vf_info_vo,
&vf_info_fame,
&vf_info_format,
&vf_info_yuy2,
&vf_info_flip,
&vf_info_rgb2bgr,
NULL
};
//============================================================================
// mpi stuff:
void vf_mpi_clear(mp_image_t* mpi,int x0,int y0,int w,int h){
int y;
if(mpi->flags&MP_IMGFLAG_PLANAR){
y0&=~1;h+=h&1;
if(x0==0 && w==mpi->width){
// full width clear:
memset(mpi->planes[0]+mpi->stride[0]*y0,0,mpi->stride[0]*h);
memset(mpi->planes[1]+mpi->stride[1]*(y0>>1),128,mpi->stride[1]*(h>>1));
memset(mpi->planes[2]+mpi->stride[2]*(y0>>1),128,mpi->stride[2]*(h>>1));
} else
for(y=y0;y<y0+h;y+=2){
memset(mpi->planes[0]+x0+mpi->stride[0]*y,0,w);
memset(mpi->planes[0]+x0+mpi->stride[0]*(y+1),0,w);
memset(mpi->planes[1]+(x0>>1)+mpi->stride[1]*(y>>1),128,(w>>1));
memset(mpi->planes[2]+(x0>>1)+mpi->stride[2]*(y>>1),128,(w>>1));
}
return;
}
// packed:
for(y=y0;y<y0+h;y++){
unsigned char* dst=mpi->planes[0]+mpi->stride[0]*y+(mpi->bpp>>3)*x0;
if(mpi->flags&MP_IMGFLAG_YUV){
unsigned int* p=dst;
int size=(mpi->bpp>>3)*w/4;
int i;
if(mpi->flags&MP_IMGFLAG_SWAPPED){
for(i=0;i<size;i+=4) p[i]=p[i+1]=p[i+2]=p[i+3]=0x00800080;
for(;i<size;i++) p[i]=0x00800080;
} else {
for(i=0;i<size;i+=4) p[i]=p[i+1]=p[i+2]=p[i+3]=0x80008000;
for(;i<size;i++) p[i]=0x80008000;
}
} else
memset(dst,0,(mpi->bpp>>3)*w);
}
}
mp_image_t* vf_get_image(vf_instance_t* vf, unsigned int outfmt, int mp_imgtype, int mp_imgflag, int w, int h){
mp_image_t* mpi=NULL;
int w2=w; //(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:
if(!vf->imgctx.export_images[0]) vf->imgctx.export_images[0]=new_mp_image(w2,h);
mpi=vf->imgctx.export_images[0];
break;
case MP_IMGTYPE_STATIC:
if(!vf->imgctx.static_images[0]) vf->imgctx.static_images[0]=new_mp_image(w2,h);
mpi=vf->imgctx.static_images[0];
break;
case MP_IMGTYPE_TEMP:
if(!vf->imgctx.temp_images[0]) vf->imgctx.temp_images[0]=new_mp_image(w2,h);
mpi=vf->imgctx.temp_images[0];
break;
case MP_IMGTYPE_IPB:
if(!(mp_imgflag&MP_IMGFLAG_READABLE)){ // B frame:
if(!vf->imgctx.temp_images[0]) vf->imgctx.temp_images[0]=new_mp_image(w2,h);
mpi=vf->imgctx.temp_images[0];
break;
}
case MP_IMGTYPE_IP:
if(!vf->imgctx.static_images[vf->imgctx.static_idx]) vf->imgctx.static_images[vf->imgctx.static_idx]=new_mp_image(w2,h);
mpi=vf->imgctx.static_images[vf->imgctx.static_idx];
vf->imgctx.static_idx^=1;
break;
}
if(mpi){
mpi->type=mp_imgtype;
mpi->flags&=~(MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE|MP_IMGFLAG_DIRECT);
mpi->flags|=mp_imgflag&(MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE|MP_IMGFLAG_ACCEPT_STRIDE|MP_IMGFLAG_ACCEPT_WIDTH|MP_IMGFLAG_ALIGNED_STRIDE|MP_IMGFLAG_DRAW_CALLBACK);
if(!vf->draw_slice) mpi->flags&=~MP_IMGFLAG_DRAW_CALLBACK;
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,outfmt);
if(!(mpi->flags&MP_IMGFLAG_ALLOCATED) && mpi->type>MP_IMGTYPE_EXPORT){
// check libvo first!
if(vf->get_image) vf->get_image(vf,mpi);
if(!(mpi->flags&MP_IMGFLAG_DIRECT)){
// non-direct and not yet allocaed image. allocate it!
mpi->planes[0]=memalign(64, mpi->bpp*mpi->width*(mpi->height+2)/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;
if(mpi->flags&MP_IMGFLAG_SWAPPED){
// I420/IYUV (Y,U,V)
mpi->planes[1]=mpi->planes[0]+mpi->width*mpi->height;
mpi->planes[2]=mpi->planes[1]+(mpi->width>>1)*(mpi->height>>1);
} else {
// YV12,YVU9 (Y,V,U)
mpi->planes[2]=mpi->planes[0]+mpi->width*mpi->height;
mpi->planes[1]=mpi->planes[2]+(mpi->width>>1)*(mpi->height>>1);
}
} else {
if(!mpi->stride[0]) mpi->stride[0]=mpi->width*mpi->bpp/8;
}
vf_mpi_clear(mpi,0,0,mpi->width,mpi->height);
mpi->flags|=MP_IMGFLAG_ALLOCATED;
}
}
if(!(mpi->flags&MP_IMGFLAG_TYPE_DISPLAYED)){
mp_msg(MSGT_DECVIDEO,MSGL_INFO,"*** [%s] %s mp_image_t, %dx%dx%dbpp %s %s, %d bytes\n",
vf->info->name,
(mpi->type==MP_IMGTYPE_EXPORT)?"Exporting":
((mpi->flags&MP_IMGFLAG_DIRECT)?"Direct Rendering":"Allocating"),
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->flags|=MP_IMGFLAG_TYPE_DISPLAYED;
}
}
return mpi;
}
//============================================================================
vf_instance_t* vf_open_plugin(vf_info_t** filter_list, vf_instance_t* next, char *name, char *args){
vf_instance_t* vf;
int i;
for(i=0;;i++){
if(!filter_list[i]){
mp_msg(MSGT_VFILTER,MSGL_ERR,"Couldn't find video filter '%s'\n",name);
return NULL; // no such filter!
}
if(!strcmp(filter_list[i]->name,name)) break;
}
vf=malloc(sizeof(vf_instance_t));
memset(vf,0,sizeof(vf_instance_t));
vf->info=filter_list[i];
vf->next=next;
vf->config=vf_next_config;
vf->control=vf_next_control;
vf->query_format=vf_next_query_format;
vf->put_image=vf_next_put_image;
vf->default_caps=VFCAP_ACCEPT_STRIDE;
vf->default_reqs=0;
if(vf->info->open(vf,args)>0) return vf; // Success!
free(vf);
mp_msg(MSGT_VFILTER,MSGL_ERR,"Couldn't open video filter '%s'\n",name);
return NULL;
}
vf_instance_t* vf_open_filter(vf_instance_t* next, char *name, char *args){
return vf_open_plugin(filter_list,next,name,args);
}
//============================================================================
unsigned int vf_match_csp(vf_instance_t** vfp,unsigned int* list,unsigned int preferred){
vf_instance_t* vf=*vfp;
unsigned int* p;
unsigned int best=0;
int ret;
if((p=list)) while(*p){
ret=vf->query_format(vf,*p);
mp_msg(MSGT_VFILTER,MSGL_V,"[%s] query(%s) -> %d\n",vf->info->name,vo_format_name(*p),ret&3);
if(ret&2){ best=*p; break;} // no conversion -> bingo!
if(ret&1 && !best) best=*p; // best with conversion
++p;
}
if(best) return best; // bingo, they have common csp!
// ok, then try with scale:
if(vf->info == &vf_info_scale) return 0; // avoid infinite recursion!
vf=vf_open_filter(vf,"scale",NULL);
if(!vf) return 0; // failed to init "scale"
// try the preferred csp first:
if(preferred && vf->query_format(vf,preferred)) best=preferred; else
// try the list again, now with "scaler" :
if((p=list)) while(*p){
ret=vf->query_format(vf,*p);
mp_msg(MSGT_VFILTER,MSGL_V,"[%s] query(%s) -> %d\n",vf->info->name,vo_format_name(*p),ret&3);
if(ret&2){ best=*p; break;} // no conversion -> bingo!
if(ret&1 && !best) best=*p; // best with conversion
++p;
}
if(best) *vfp=vf; // else uninit vf !FIXME!
return best;
}
int vf_next_config(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int voflags, unsigned int outfmt){
int miss;
int flags=vf->next->query_format(vf->next,outfmt);
if(!flags){
// hmm. colorspace mismatch!!!
// let's insert the 'scale' filter, it does the job for us:
vf_instance_t* vf2;
if(vf->next->info==&vf_info_scale) return 0; // scale->scale
vf2=vf_open_filter(vf->next,"scale",NULL);
if(!vf2) return 0; // shouldn't happen!
vf->next=vf2;
flags=vf->next->query_format(vf->next,outfmt);
if(!flags){
mp_msg(MSGT_VFILTER,MSGL_ERR,"Cannot find common colorspace, even by inserting 'scale' :(\n");
return 0; // FAIL
}
}
printf("REQ: flags=0x%X req=0x%X \n",flags,vf->default_reqs);
miss=vf->default_reqs - (flags&vf->default_reqs);
if(miss&VFCAP_ACCEPT_STRIDE){
// vf requires stride support but vf->next doesn't support it!
// let's insert the 'expand' filter, it does the job for us:
vf_instance_t* vf2=vf_open_filter(vf->next,"expand",NULL);
if(!vf2) return 0; // shouldn't happen!
vf->next=vf2;
}
return vf->next->config(vf->next,width,height,d_width,d_height,voflags,outfmt);
}
int vf_next_control(struct vf_instance_s* vf, int request, void* data){
return vf->next->control(vf->next,request,data);
}
int vf_next_query_format(struct vf_instance_s* vf, unsigned int fmt){
int flags=vf->next->query_format(vf->next,fmt);
if(flags) flags|=vf->default_caps;
return flags;
}
void vf_next_put_image(struct vf_instance_s* vf,mp_image_t *mpi){
return vf->next->put_image(vf->next,mpi);
}
//============================================================================
vf_instance_t* append_filters(vf_instance_t* last){
vf_instance_t* vf;
if(!vo_plugin_args) return last;
while(*vo_plugin_args){
char* name=strdup(*vo_plugin_args);
char* args=strchr(name,'=');
if(args){args[0]=0;++args;}
mp_msg(MSGT_VFILTER,MSGL_INFO,"Opening video filter '%s' with args '%s'...\n",name,args);
vf=vf_open_filter(last,name,args);
if(vf) last=vf;
free(name);
++vo_plugin_args;
}
return last;
}
//============================================================================
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