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mpv/libmpcodecs/vf.c

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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../config.h"
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif
#ifdef MP_DEBUG
#include <assert.h>
#endif
#include "../mp_msg.h"
#include "../help_mp.h"
#include "../m_option.h"
#include "../m_struct.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"
#include "../libvo/fastmemcpy.h"
extern vf_info_t vf_info_vo;
extern vf_info_t vf_info_rectangle;
#ifndef HAVE_NO_POSIX_SELECT
extern vf_info_t vf_info_bmovl;
#endif
extern vf_info_t vf_info_crop;
extern vf_info_t vf_info_expand;
#ifdef FF_POSTPROCESS
extern vf_info_t vf_info_pp;
#endif
extern vf_info_t vf_info_scale;
#ifdef USE_LIBFAME
extern vf_info_t vf_info_fame;
#endif
extern vf_info_t vf_info_format;
extern vf_info_t vf_info_noformat;
extern vf_info_t vf_info_yuy2;
extern vf_info_t vf_info_flip;
extern vf_info_t vf_info_rgb2bgr;
extern vf_info_t vf_info_rotate;
extern vf_info_t vf_info_mirror;
extern vf_info_t vf_info_palette;
extern vf_info_t vf_info_lavc;
extern vf_info_t vf_info_zrmjpeg;
extern vf_info_t vf_info_dvbscale;
extern vf_info_t vf_info_cropdetect;
extern vf_info_t vf_info_test;
extern vf_info_t vf_info_noise;
extern vf_info_t vf_info_yvu9;
extern vf_info_t vf_info_lavcdeint;
extern vf_info_t vf_info_eq;
extern vf_info_t vf_info_eq2;
extern vf_info_t vf_info_halfpack;
extern vf_info_t vf_info_dint;
extern vf_info_t vf_info_1bpp;
extern vf_info_t vf_info_2xsai;
extern vf_info_t vf_info_unsharp;
extern vf_info_t vf_info_swapuv;
extern vf_info_t vf_info_il;
extern vf_info_t vf_info_fil;
extern vf_info_t vf_info_boxblur;
extern vf_info_t vf_info_sab;
extern vf_info_t vf_info_smartblur;
extern vf_info_t vf_info_perspective;
extern vf_info_t vf_info_down3dright;
extern vf_info_t vf_info_field;
extern vf_info_t vf_info_denoise3d;
extern vf_info_t vf_info_hqdn3d;
extern vf_info_t vf_info_detc;
extern vf_info_t vf_info_telecine;
extern vf_info_t vf_info_tinterlace;
extern vf_info_t vf_info_tfields;
extern vf_info_t vf_info_ivtc;
extern vf_info_t vf_info_ilpack;
extern vf_info_t vf_info_dsize;
extern vf_info_t vf_info_decimate;
extern vf_info_t vf_info_softpulldown;
extern vf_info_t vf_info_pullup;
extern vf_info_t vf_info_filmdint;
extern vf_info_t vf_info_framestep;
extern vf_info_t vf_info_tile;
extern vf_info_t vf_info_delogo;
extern vf_info_t vf_info_remove_logo;
extern vf_info_t vf_info_hue;
extern vf_info_t vf_info_spp;
extern vf_info_t vf_info_fspp;
extern vf_info_t vf_info_yuvcsp;
extern vf_info_t vf_info_kerndeint;
extern vf_info_t vf_info_rgbtest;
extern vf_info_t vf_info_qp;
extern vf_info_t vf_info_phase;
extern vf_info_t vf_info_divtc;
extern vf_info_t vf_info_harddup;
extern vf_info_t vf_info_softskip;
// list of available filters:
static vf_info_t* filter_list[]={
&vf_info_rectangle,
#ifndef HAVE_NO_POSIX_SELECT
&vf_info_bmovl,
#endif
&vf_info_crop,
&vf_info_expand,
#ifdef FF_POSTPROCESS
&vf_info_pp,
#endif
&vf_info_scale,
// &vf_info_osd,
&vf_info_vo,
#ifdef USE_LIBFAME
&vf_info_fame,
#endif
&vf_info_format,
&vf_info_noformat,
&vf_info_yuy2,
&vf_info_flip,
&vf_info_rgb2bgr,
&vf_info_rotate,
&vf_info_mirror,
&vf_info_palette,
#ifdef USE_LIBAVCODEC
&vf_info_lavc,
&vf_info_lavcdeint,
#endif
#ifdef HAVE_ZR
&vf_info_zrmjpeg,
#endif
&vf_info_dvbscale,
&vf_info_cropdetect,
&vf_info_test,
&vf_info_noise,
&vf_info_yvu9,
&vf_info_eq,
&vf_info_eq2,
&vf_info_halfpack,
&vf_info_dint,
&vf_info_1bpp,
&vf_info_2xsai,
&vf_info_unsharp,
&vf_info_swapuv,
&vf_info_il,
&vf_info_fil,
&vf_info_boxblur,
&vf_info_sab,
&vf_info_smartblur,
&vf_info_perspective,
&vf_info_down3dright,
&vf_info_field,
&vf_info_denoise3d,
&vf_info_hqdn3d,
&vf_info_detc,
&vf_info_telecine,
&vf_info_tinterlace,
&vf_info_tfields,
&vf_info_ivtc,
&vf_info_ilpack,
&vf_info_dsize,
&vf_info_decimate,
&vf_info_softpulldown,
&vf_info_pullup,
&vf_info_filmdint,
&vf_info_framestep,
&vf_info_tile,
&vf_info_delogo,
&vf_info_remove_logo,
&vf_info_hue,
#ifdef USE_LIBAVCODEC
&vf_info_spp,
&vf_info_fspp,
#endif
&vf_info_yuvcsp,
&vf_info_kerndeint,
&vf_info_rgbtest,
#ifdef USE_LIBAVCODEC
&vf_info_qp,
#endif
&vf_info_phase,
&vf_info_divtc,
&vf_info_harddup,
&vf_info_softskip,
NULL
};
// For the vf option
m_obj_settings_t* vf_settings = NULL;
// For the vop option
m_obj_settings_t* vo_plugin_args = NULL;
m_obj_list_t vf_obj_list = {
(void**)filter_list,
M_ST_OFF(vf_info_t,name),
M_ST_OFF(vf_info_t,info),
M_ST_OFF(vf_info_t,opts)
};
//============================================================================
// 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>>mpi->chroma_y_shift),128,mpi->stride[1]*(h>>mpi->chroma_y_shift));
memset(mpi->planes[2]+mpi->stride[2]*(y0>>mpi->chroma_y_shift),128,mpi->stride[2]*(h>>mpi->chroma_y_shift));
} 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>>mpi->chroma_x_shift)+mpi->stride[1]*(y>>mpi->chroma_y_shift),128,(w>>mpi->chroma_x_shift));
memset(mpi->planes[2]+(x0>>mpi->chroma_x_shift)+mpi->stride[2]*(y>>mpi->chroma_y_shift),128,(w>>mpi->chroma_x_shift));
}
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=(unsigned int*) dst;
int size=(mpi->bpp>>3)*w/4;
int i;
#ifdef WORDS_BIGENDIAN
#define CLEAR_PACKEDYUV_PATTERN 0x00800080
#define CLEAR_PACKEDYUV_PATTERN_SWAPPED 0x80008000
#else
#define CLEAR_PACKEDYUV_PATTERN 0x80008000
#define CLEAR_PACKEDYUV_PATTERN_SWAPPED 0x00800080
#endif
if(mpi->flags&MP_IMGFLAG_SWAPPED){
for(i=0;i<size-3;i+=4) p[i]=p[i+1]=p[i+2]=p[i+3]=CLEAR_PACKEDYUV_PATTERN_SWAPPED;
for(;i<size;i++) p[i]=CLEAR_PACKEDYUV_PATTERN_SWAPPED;
} else {
for(i=0;i<size-3;i+=4) p[i]=p[i+1]=p[i+2]=p[i+3]=CLEAR_PACKEDYUV_PATTERN;
for(;i<size;i++) p[i]=CLEAR_PACKEDYUV_PATTERN;
}
} 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;
#ifdef MP_DEBUG
assert(w == -1 || w >= vf->w);
assert(h == -1 || h >= vf->h);
assert(vf->w > 0);
assert(vf->h > 0);
#endif
// fprintf(stderr, "get_image: %d:%d, vf: %d:%d\n", w,h,vf->w,vf->h);
if (w == -1) w = vf->w;
if (h == -1) h = vf->h;
w2=(mp_imgflag&MP_IMGFLAG_ACCEPT_ALIGNED_STRIDE)?((w+15)&(~15)):w;
if(vf->put_image==vf_next_put_image){
// passthru mode, if the plugin uses the fallback/default put_image() code
return vf_get_image(vf->next,outfmt,mp_imgtype,mp_imgflag,w,h);
}
// 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->w=vf->w; mpi->h=vf->h;
// keep buffer allocation status & color flags only:
// mpi->flags&=~(MP_IMGFLAG_PRESERVE|MP_IMGFLAG_READABLE|MP_IMGFLAG_DIRECT);
mpi->flags&=MP_IMGFLAG_ALLOCATED|MP_IMGFLAG_TYPE_DISPLAYED|MP_IMGFLAGMASK_COLORS;
// accept restrictions & draw_slice flags only:
mpi->flags|=mp_imgflag&(MP_IMGFLAGMASK_RESTRICTIONS|MP_IMGFLAG_DRAW_CALLBACK);
if(!vf->draw_slice) mpi->flags&=~MP_IMGFLAG_DRAW_CALLBACK;
if(mpi->width!=w2 || mpi->height!=h){
// printf("vf.c: MPI parameters changed! %dx%d -> %dx%d \n", mpi->width,mpi->height,w2,h);
if(mpi->flags&MP_IMGFLAG_ALLOCATED){
if(mpi->width<w2 || mpi->height<h){
// need to re-allocate buffer memory:
free(mpi->planes[0]);
mpi->flags&=~MP_IMGFLAG_ALLOCATED;
printf("vf.c: have to REALLOCATE buffer memory :(\n");
}
// } else {
} {
mpi->width=w2; mpi->chroma_width=(w2 + (1<<mpi->chroma_x_shift) - 1)>>mpi->chroma_x_shift;
mpi->height=h; mpi->chroma_height=(h + (1<<mpi->chroma_y_shift) - 1)>>mpi->chroma_y_shift;
}
}
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 allocated image. allocate it!
// check if codec prefer aligned stride:
if(mp_imgflag&MP_IMGFLAG_PREFER_ALIGNED_STRIDE){
int align=(mpi->flags&MP_IMGFLAG_PLANAR &&
mpi->flags&MP_IMGFLAG_YUV) ?
(8<<mpi->chroma_x_shift)-1 : 15; // -- maybe FIXME
w2=((w+align)&(~align));
if(mpi->width!=w2){
// we have to change width... check if we CAN co it:
int flags=vf->query_format(vf,outfmt); // should not fail
if(!(flags&3)) mp_msg(MSGT_DECVIDEO,MSGL_WARN,"??? vf_get_image{vf->query_format(outfmt)} failed!\n");
// printf("query -> 0x%X \n",flags);
if(flags&VFCAP_ACCEPT_STRIDE){
mpi->width=w2;
mpi->chroma_width=(w2 + (1<<mpi->chroma_x_shift) - 1)>>mpi->chroma_x_shift;
}
}
}
// IF09 - allocate space for 4. plane delta info - unused
if (mpi->imgfmt == IMGFMT_IF09)
{
mpi->planes[0]=memalign(64, mpi->bpp*mpi->width*(mpi->height+2)/8+
mpi->chroma_width*mpi->chroma_height);
/* export delta table */
mpi->planes[3]=mpi->planes[0]+(mpi->width*mpi->height)+2*(mpi->chroma_width*mpi->chroma_height);
}
else
mpi->planes[0]=memalign(64, mpi->bpp*mpi->width*(mpi->height+2)/8);
if(mpi->flags&MP_IMGFLAG_PLANAR){
// YV12/I420/YVU9/IF09. feel free to add other planar formats here...
//if(!mpi->stride[0])
mpi->stride[0]=mpi->width;
//if(!mpi->stride[1])
if(mpi->num_planes > 2){
mpi->stride[1]=mpi->stride[2]=mpi->chroma_width;
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->chroma_width*mpi->chroma_height;
} else {
// YV12,YVU9,IF09 (Y,V,U)
mpi->planes[2]=mpi->planes[0]+mpi->width*mpi->height;
mpi->planes[1]=mpi->planes[2]+mpi->chroma_width*mpi->chroma_height;
}
} else {
// NV12/NV21
mpi->stride[1]=mpi->chroma_width;
mpi->planes[1]=mpi->planes[0]+mpi->width*mpi->height;
}
} else {
//if(!mpi->stride[0])
mpi->stride[0]=mpi->width*mpi->bpp/8;
}
// printf("clearing img!\n");
vf_mpi_clear(mpi,0,0,mpi->width,mpi->height);
mpi->flags|=MP_IMGFLAG_ALLOCATED;
}
}
if(mpi->flags&MP_IMGFLAG_DRAW_CALLBACK)
if(vf->start_slice) vf->start_slice(vf,mpi);
if(!(mpi->flags&MP_IMGFLAG_TYPE_DISPLAYED)){
mp_msg(MSGT_DECVIDEO,MSGL_V,"*** [%s] %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->flags&MP_IMGFLAG_DRAW_CALLBACK)?" (slices)":"",
mpi->width,mpi->height,mpi->bpp,
(mpi->flags&MP_IMGFLAG_YUV)?"YUV":((mpi->flags&MP_IMGFLAG_SWAPPED)?"BGR":"RGB"),
(mpi->flags&MP_IMGFLAG_PLANAR)?"planar":"packed",
mpi->bpp*mpi->width*mpi->height/8);
mp_msg(MSGT_DECVIDEO,MSGL_DBG2,"(imgfmt: %x, planes: %x,%x,%x strides: %d,%d,%d, chroma: %dx%d, shift: h:%d,v:%d)\n",
mpi->imgfmt, mpi->planes[0], mpi->planes[1], mpi->planes[2],
mpi->stride[0], mpi->stride[1], mpi->stride[2],
mpi->chroma_width, mpi->chroma_height, mpi->chroma_x_shift, mpi->chroma_y_shift);
mpi->flags|=MP_IMGFLAG_TYPE_DISPLAYED;
}
}
// printf("\rVF_MPI: %p %p %p %d %d %d \n",
// mpi->planes[0],mpi->planes[1],mpi->planes[2],
// mpi->stride[0],mpi->stride[1],mpi->stride[2]);
return mpi;
}
//============================================================================
// By default vf doesn't accept MPEGPES
static int vf_default_query_format(struct vf_instance_s* vf, unsigned int fmt){
if(fmt == IMGFMT_MPEGPES) return 0;
return vf_next_query_format(vf,fmt);
}
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,MSGTR_CouldNotFindVideoFilter,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_default_query_format;
vf->put_image=vf_next_put_image;
vf->default_caps=VFCAP_ACCEPT_STRIDE;
vf->default_reqs=0;
if(vf->info->opts) { // vf_vo get some special argument
m_struct_t* st = vf->info->opts;
void* vf_priv = m_struct_alloc(st);
int n;
for(n = 0 ; args && args[2*n] ; n++)
m_struct_set(st,vf_priv,args[2*n],args[2*n+1]);
vf->priv = vf_priv;
args = NULL;
} else // Otherwise we should have the '_oldargs_'
if(args && !strcmp(args[0],"_oldargs_"))
args = (char**)args[1];
else
args = NULL;
if(vf->info->open(vf,(char*)args)>0) return vf; // Success!
free(vf);
mp_msg(MSGT_VFILTER,MSGL_ERR,MSGTR_CouldNotOpenVideoFilter,name);
return NULL;
}
vf_instance_t* vf_open_filter(vf_instance_t* next, char *name, char **args){
if(args && strcmp(args[0],"_oldargs_")) {
int i,l = 0;
for(i = 0 ; args && args[2*i] ; i++)
l += 1 + strlen(args[2*i]) + 1 + strlen(args[2*i+1]);
l += strlen(name);
{
char str[l+1];
char* p = str;
p += sprintf(str,"%s",name);
for(i = 0 ; args && args[2*i] ; i++)
p += sprintf(p," %s=%s",args[2*i],args[2*i+1]);
mp_msg(MSGT_VFILTER,MSGL_INFO,MSGTR_OpeningVideoFilter "[%s]\n",str);
}
} else if(strcmp(name,"vo")) {
if(args && strcmp(args[0],"_oldargs_") == 0)
mp_msg(MSGT_VFILTER,MSGL_INFO,MSGTR_OpeningVideoFilter
"[%s=%s]\n", name,args[1]);
else
mp_msg(MSGT_VFILTER,MSGL_INFO,MSGTR_OpeningVideoFilter
"[%s]\n", name);
}
return vf_open_plugin(filter_list,next,name,args);
}
/**
* \brief adds a filter before the last one (which should be the vo filter).
* \param vf start of the filter chain.
* \param name name of the filter to add.
* \param args argument list for the filter.
* \return pointer to the filter instance that was created.
*/
vf_instance_t* vf_add_before_vo(vf_instance_t **vf, char *name, char **args) {
vf_instance_t *vo, *prev = NULL, *new;
// Find the last filter (should be vf_vo)
for (vo = *vf; vo->next; vo = vo->next)
prev = vo;
new = vf_open_filter(vo, name, args);
if (prev)
prev->next = new;
else
*vf = new;
return new;
}
//============================================================================
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;
}
void vf_clone_mpi_attributes(mp_image_t* dst, mp_image_t* src){
dst->pict_type= src->pict_type;
dst->fields = src->fields;
dst->qscale_type= src->qscale_type;
if(dst->width == src->width && dst->height == src->height){
dst->qstride= src->qstride;
dst->qscale= src->qscale;
}
}
/**
* \brief Video config() function wrapper
*
* Blocks config() calls with different size or format for filters
* with VFCAP_CONSTANT
*
* First call is redirected to vf->config.
*
* In following calls, it verifies that the configuration parameters
* are unchanged, and returns either success or error.
*
*/
int vf_config_wrapper(struct vf_instance_s* vf,
int width, int height, int d_width, int d_height,
unsigned int flags, unsigned int outfmt)
{
if ((vf->default_caps&VFCAP_CONSTANT) && vf->fmt.have_configured) {
if ((vf->fmt.orig_width != width)
|| (vf->fmt.orig_height != height)
|| (vf->fmt.orig_fmt != outfmt)) {
mp_msg(MSGT_VFILTER,MSGL_ERR,MSGTR_ResolutionDoesntMatch);
return 0;
}
return 1;
}
vf->fmt.have_configured = 1;
vf->fmt.orig_height = height;
vf->fmt.orig_width = width;
vf->fmt.orig_fmt = outfmt;
return vf->config(vf, width, height, d_width, d_height, flags, outfmt);
}
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,MSGTR_CannotFindColorspace);
return 0; // FAIL
}
}
mp_msg(MSGT_VFILTER,MSGL_V,"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;
}
vf->next->w = width; vf->next->h = height;
return vf_config_wrapper(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;
}
int vf_next_put_image(struct vf_instance_s* vf,mp_image_t *mpi){
return vf->next->put_image(vf->next,mpi);
}
void vf_next_draw_slice(struct vf_instance_s* vf,unsigned char** src, int * stride,int w, int h, int x, int y){
if (vf->next->draw_slice) {
vf->next->draw_slice(vf->next,src,stride,w,h,x,y);
return;
}
if (!vf->dmpi) {
mp_msg(MSGT_VFILTER,MSGL_ERR,"draw_slice: dmpi not stored by vf_%s\n", vf->info->name);
return;
}
if (!(vf->dmpi->flags & MP_IMGFLAG_PLANAR)) {
memcpy_pic(vf->dmpi->planes[0]+y*vf->dmpi->stride[0]+vf->dmpi->bpp/8*x,
src[0], vf->dmpi->bpp/8*w, h, vf->dmpi->stride[0], stride[0]);
return;
}
memcpy_pic(vf->dmpi->planes[0]+y*vf->dmpi->stride[0]+x, src[0],
w, h, vf->dmpi->stride[0], stride[0]);
memcpy_pic(vf->dmpi->planes[1]+(y>>vf->dmpi->chroma_y_shift)*vf->dmpi->stride[1]+(x>>vf->dmpi->chroma_x_shift),
src[1], w>>vf->dmpi->chroma_x_shift, h>>vf->dmpi->chroma_y_shift, vf->dmpi->stride[1], stride[1]);
memcpy_pic(vf->dmpi->planes[2]+(y>>vf->dmpi->chroma_y_shift)*vf->dmpi->stride[2]+(x>>vf->dmpi->chroma_x_shift),
src[2], w>>vf->dmpi->chroma_x_shift, h>>vf->dmpi->chroma_y_shift, vf->dmpi->stride[2], stride[2]);
}
//============================================================================
vf_instance_t* append_filters(vf_instance_t* last){
vf_instance_t* vf;
int i;
// -vf take precedence over -vop
if(vf_settings) {
// We want to add them in the 'right order'
for(i = 0 ; vf_settings[i].name ; i++)
/* NOP */;
for(i-- ; i >= 0 ; i--) {
//printf("Open filter %s\n",vf_settings[i].name);
vf = vf_open_filter(last,vf_settings[i].name,vf_settings[i].attribs);
if(vf) last=vf;
}
} else if(vo_plugin_args) {
for(i = 0 ; vo_plugin_args[i].name ; i++) {
vf = vf_open_filter(last,vo_plugin_args[i].name,
vo_plugin_args[i].attribs);
if(vf) last=vf;
}
}
return last;
}
//============================================================================
void vf_uninit_filter(vf_instance_t* vf){
if(vf->uninit) vf->uninit(vf);
free_mp_image(vf->imgctx.static_images[0]);
free_mp_image(vf->imgctx.static_images[1]);
free_mp_image(vf->imgctx.temp_images[0]);
free_mp_image(vf->imgctx.export_images[0]);
free(vf);
}
void vf_uninit_filter_chain(vf_instance_t* vf){
while(vf){
vf_instance_t* next=vf->next;
vf_uninit_filter(vf);
vf=next;
}
}
void vf_list_plugins(){
int i=0;
while(filter_list[i]){
mp_msg(MSGT_VFILTER,MSGL_INFO,"\t%-10s: %s\n",filter_list[i]->name,filter_list[i]->info);
i++;
}
}
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