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24 lines
1.0 KiB
Diff
24 lines
1.0 KiB
Diff
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diff --git a/media/libtheora/lib/decode.c b/media/libtheora/lib/decode.c
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--- a/media/libtheora/lib/decode.c
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+++ b/media/libtheora/lib/decode.c
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@@ -2072,18 +2072,17 @@ static void oc_dec_init_dummy_frame(th_d
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sizeof(_dec->pp_frame_buf[0])*3);
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info=&_dec->state.info;
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yhstride=abs(_dec->state.ref_ystride[0]);
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yheight=info->frame_height+2*OC_UMV_PADDING;
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chstride=abs(_dec->state.ref_ystride[1]);
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cheight=yheight>>!(info->pixel_fmt&2);
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yplane_sz=yhstride*(size_t)yheight+16;
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cplane_sz=chstride*(size_t)cheight;
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- yoffset=_dec->state.ref_ystride[0]*(yheight-1)-
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- (OC_UMV_PADDING+OC_UMV_PADDING*(ptrdiff_t)yhstride);
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+ yoffset=yhstride*(ptrdiff_t)(yheight-OC_UMV_PADDING-1)+OC_UMV_PADDING;
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memset(_dec->state.ref_frame_data[0]-yoffset,0x80,yplane_sz+2*cplane_sz);
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}
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int th_decode_packetin(th_dec_ctx *_dec,const ogg_packet *_op,
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ogg_int64_t *_granpos){
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int ret;
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if(_dec==NULL||_op==NULL)return TH_EFAULT;
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/*A completely empty packet indicates a dropped frame and is treated exactly
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