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d3d11va: don't keep the context lock while waiting for a frame

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also fixes a deadlock found by Денис Кулаков <kudesnik33ra@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Steve Lhomme 2016-06-15 09:24:29 +02:00 committed by Michael Niedermayer
parent 8b069b1cd5
commit 193a421994
1 changed files with 9 additions and 3 deletions
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12
libavcodec/dxva2.c
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@ -158,9 +158,15 @@ int ff_dxva2_common_end_frame(AVCodecContext *avctx, AVFrame *frame,
ff_dxva2_get_surface(frame),
NULL);
#endif
if (hr == E_PENDING)
av_usleep(2000);
} while (hr == E_PENDING && ++runs < 50);
if (hr != E_PENDING || ++runs > 50)
break;
#if CONFIG_D3D11VA
if (avctx->pix_fmt == AV_PIX_FMT_D3D11VA_VLD)
if (D3D11VA_CONTEXT(ctx)->context_mutex != INVALID_HANDLE_VALUE)
ReleaseMutex(D3D11VA_CONTEXT(ctx)->context_mutex);
#endif
av_usleep(2000);
} while(1);
if (FAILED(hr)) {
av_log(avctx, AV_LOG_ERROR, "Failed to begin frame: 0x%lx\n", hr);