mirror of
https://github.com/mpv-player/mpv
synced 2024-12-15 11:25:10 +00:00
647b4aa808
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5528 b3059339-0415-0410-9bf9-f77b7e298cf2
146 lines
3.6 KiB
C
146 lines
3.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include "../config.h"
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#include "../mp_msg.h"
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#include "../libvo/img_format.h"
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#include "../mp_image.h"
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#include "vf.h"
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#include "../libvo/fastmemcpy.h"
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#include "../postproc/swscale.h"
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struct vf_priv_s {
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int w,h;
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unsigned int fmt;
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SwsContext *ctx;
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};
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//===========================================================================//
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static unsigned int outfmt_list[]={
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IMGFMT_BGR32,
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IMGFMT_BGR24,
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IMGFMT_BGR16,
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IMGFMT_BGR15,
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IMGFMT_YV12,
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IMGFMT_I420,
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IMGFMT_IYUV,
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NULL
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};
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static int config(struct vf_instance_s* vf,
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int width, int height, int d_width, int d_height,
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unsigned int flags, unsigned int outfmt){
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unsigned int* p=outfmt_list;
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unsigned int best=0;
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// find the best outfmt:
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while(*p){
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int ret=vf_next_query_format(vf,*p);
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mp_msg(MSGT_VFILTER,MSGL_V,"scale: query(%s) -> %d\n",vo_format_name(*p),ret&3);
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if(ret&2){ best=*p; break;} // no conversion -> bingo!
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if(ret&1 && !best) best=*p; // best with conversion
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++p;
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}
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if(!best){
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printf("SwScale: no supported outfmt found :(\n");
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return 0;
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}
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// calculate the missing parameters:
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if(vf->priv->w<=0) vf->priv->w=width;
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if(vf->priv->h<=0) vf->priv->h=height;
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printf("SwScale scaling %dx%d %s to %dx%d %s \n",
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width,height,vo_format_name(outfmt),
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vf->priv->w,vf->priv->h,vo_format_name(best));
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// free old ctx:
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if(vf->priv->ctx) freeSwsContext(vf->priv->ctx);
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// new swscaler:
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vf->priv->ctx=getSwsContextFromCmdLine(width,height,outfmt,
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vf->priv->w,vf->priv->h,best);
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if(!vf->priv->ctx){
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// error...
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printf("Couldn't init SwScaler for this setup\n");
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return 0;
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}
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vf->priv->fmt=best;
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return vf_next_config(vf,vf->priv->w,vf->priv->h,d_width,d_height,flags,best);
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}
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static void put_image(struct vf_instance_s* vf, mp_image_t *mpi){
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mp_image_t *dmpi;
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// hope we'll get DR buffer:
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dmpi=vf_get_image(vf->next,vf->priv->fmt,
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MP_IMGTYPE_TEMP, MP_IMGFLAG_ACCEPT_STRIDE,
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vf->priv->w, vf->priv->h);
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vf->priv->ctx->swScale(vf->priv->ctx,mpi->planes,mpi->stride,0,mpi->h,dmpi->planes,dmpi->stride);
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if(vf->priv->w==mpi->w && vf->priv->h==mpi->h){
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// just conversion, no scaling -> keep postprocessing data
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// this way we can apply pp filter to non-yv12 source using scaler
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dmpi->qscale=mpi->qscale;
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dmpi->qstride=mpi->qstride;
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}
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vf_next_put_image(vf,dmpi);
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}
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//===========================================================================//
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// supported Input formats: YV12, I420, IYUV, YUY2, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8, Y800
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static int query_format(struct vf_instance_s* vf, unsigned int fmt){
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switch(fmt){
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case IMGFMT_YV12:
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case IMGFMT_I420:
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case IMGFMT_IYUV:
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case IMGFMT_YUY2:
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case IMGFMT_BGR32:
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case IMGFMT_BGR24:
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case IMGFMT_BGR16:
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case IMGFMT_BGR15:
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case IMGFMT_RGB32:
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case IMGFMT_RGB24:
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case IMGFMT_Y800:
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return 3; //vf_next_query_format(vf,fmt);
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}
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return 0;
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}
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static int open(vf_instance_t *vf, char* args){
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vf->config=config;
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vf->put_image=put_image;
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vf->query_format=query_format;
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vf->priv=malloc(sizeof(struct vf_priv_s));
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// TODO: parse args ->
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vf->priv->ctx=NULL;
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vf->priv->w=
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vf->priv->h=-1;
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if(args) sscanf(args, "%d:%d",
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&vf->priv->w,
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&vf->priv->h);
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printf("SwScale: %d x %d\n",
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vf->priv->w,
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vf->priv->h);
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return 1;
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}
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vf_info_t vf_info_scale = {
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"software scaling",
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"scale",
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"A'rpi",
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"",
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open
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};
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//===========================================================================//
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