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dxva2: get the slice number directly from the surface in D3D11VA

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No need to loop through the known surfaces, we'll use the requested surface
anyway.

The loop is only done for DXVA2.

Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
Steve Lhomme 2017-01-04 13:44:12 +01:00 committed by Anton Khirnov
parent 122de16dd8
commit f67235a28c
1 changed files with 7 additions and 7 deletions
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14
libavcodec/dxva2.c
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@ -41,19 +41,19 @@ unsigned ff_dxva2_get_surface_index(const AVCodecContext *avctx,
void *surface = get_surface(frame);
unsigned i;
for (i = 0; i < DXVA_CONTEXT_COUNT(avctx, ctx); i++) {
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD && ctx->d3d11va.surface[i] == surface) {
D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC viewDesc;
ID3D11VideoDecoderOutputView_GetDesc(ctx->d3d11va.surface[i], &viewDesc);
return viewDesc.Texture2D.ArraySlice;
}
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD) {
D3D11_VIDEO_DECODER_OUTPUT_VIEW_DESC viewDesc;
ID3D11VideoDecoderOutputView_GetDesc((ID3D11VideoDecoderOutputView*) surface, &viewDesc);
return viewDesc.Texture2D.ArraySlice;
}
#endif
#if CONFIG_DXVA2
for (i = 0; i < DXVA_CONTEXT_COUNT(avctx, ctx); i++) {
if (avctx->pix_fmt == AV_PIX_FMT_DXVA2_VLD && ctx->dxva2.surface[i] == surface)
return i;
#endif
}
#endif
assert(0);
return 0;