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avcodec/cuviddec: Remove unnecessary stream synchronisation

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We're also doing a sync here after copying the frame to be passed
on down the pipleine. And it is also unnecessary.

I was able to demonstrate a 33% speedup removing the sync from
an example transcode pipeline.
This commit is contained in:
Philip Langdale 2019-03-30 10:51:07 -07:00
parent c0b6e4cb6d
commit 5d90d1e36e
1 changed files with 0 additions and 4 deletions
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4
libavcodec/cuviddec.c
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@ -553,10 +553,6 @@ static int cuvid_output_frame(AVCodecContext *avctx, AVFrame *frame)
offset += height;
}
ret = CHECK_CU(ctx->cudl->cuStreamSynchronize(device_hwctx->stream));
if (ret < 0)
goto error;
} else if (avctx->pix_fmt == AV_PIX_FMT_NV12 ||
avctx->pix_fmt == AV_PIX_FMT_P010 ||
avctx->pix_fmt == AV_PIX_FMT_P016 ||