media/libtheora/bug625773-r17780.patch

   1 diff --git a/media/libtheora/lib/decode.c b/media/libtheora/lib/decode.c
   2 --- a/media/libtheora/lib/decode.c
   3 +++ b/media/libtheora/lib/decode.c
   4 @@ -2072,18 +2072,17 @@ static void oc_dec_init_dummy_frame(th_d
   5     sizeof(_dec->pp_frame_buf[0])*3);
   6    info=&_dec->state.info;
   7    yhstride=abs(_dec->state.ref_ystride[0]);
   8    yheight=info->frame_height+2*OC_UMV_PADDING;
   9    chstride=abs(_dec->state.ref_ystride[1]);
  10    cheight=yheight>>!(info->pixel_fmt&2);
  11    yplane_sz=yhstride*(size_t)yheight+16;
  12    cplane_sz=chstride*(size_t)cheight;
  13 -  yoffset=_dec->state.ref_ystride[0]*(yheight-1)-
  14 -   (OC_UMV_PADDING+OC_UMV_PADDING*(ptrdiff_t)yhstride);
  15 +  yoffset=yhstride*(ptrdiff_t)(yheight-OC_UMV_PADDING-1)+OC_UMV_PADDING;
  16    memset(_dec->state.ref_frame_data[0]-yoffset,0x80,yplane_sz+2*cplane_sz);
  17  }
  18
  19  int th_decode_packetin(th_dec_ctx *_dec,const ogg_packet *_op,
  20   ogg_int64_t *_granpos){
  21    int ret;
  22    if(_dec==NULL||_op==NULL)return TH_EFAULT;
  23    /*A completely empty packet indicates a dropped frame and is treated exactly