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mirror of https://github.com/mpv-player/mpv synced 2024-10-30 04:46:41 +01:00
mpv/libmpcodecs/vd_svq1.c
alex f43150759d do not crash by decoding error
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6522 b3059339-0415-0410-9bf9-f77b7e298cf2
2002-06-23 11:34:54 +00:00

81 lines
1.6 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include "config.h"
#include "mp_msg.h"
#include "vd_internal.h"
static vd_info_t info = {
"SVQ1 (Sorenson v1) Video decoder",
"svq1",
VFM_SVQ1,
"A'rpi",
"XINE team",
"native codec"
};
LIBVD_EXTERN(svq1)
#include "native/svq1.h"
// to set/get/query special features/parameters
static int control(sh_video_t *sh,int cmd,void* arg,...){
return CONTROL_UNKNOWN;
}
extern int avcodec_inited;
// init driver
static int init(sh_video_t *sh){
#ifdef USE_LIBAVCODEC
if(!avcodec_inited){
avcodec_init();
avcodec_register_all();
avcodec_inited=1;
}
#endif
if(!mpcodecs_config_vo(sh,sh->disp_w,sh->disp_h,IMGFMT_YVU9)) return 0;
sh->context=malloc(sizeof(svq1_t));
memset(sh->context,0,sizeof(svq1_t));
return 1;
}
// uninit driver
static void uninit(sh_video_t *sh){
svq1_free(sh->context);
sh->context=NULL;
}
// decode a frame
static mp_image_t* decode(sh_video_t *sh,void* data,int len,int flags){
mp_image_t* mpi;
svq1_t* svq1=sh->context;
int ret;
if(len<=0) return NULL; // skipped frame
ret=svq1_decode_frame(svq1,data,len);
if (ret != 0)
return NULL;
mpi=mpcodecs_get_image(sh, MP_IMGTYPE_EXPORT, MP_IMGFLAG_PRESERVE,
sh->disp_w, sh->disp_h);
if(!mpi) return NULL;
mp_msg(MSGT_DECVIDEO,MSGL_DBG2,"SVQ1: ret=%d wh=%dx%d p=%p \n",ret,svq1->width,svq1->height,svq1->current);
mpi->planes[0]=svq1->base[0];
mpi->planes[1]=svq1->base[1];
mpi->planes[2]=svq1->base[2];
mpi->stride[0]=svq1->luma_width;
mpi->stride[1]=mpi->stride[2]=svq1->chroma_width;
return mpi;
}