On Sun, Jan 19, 2014 at 6:23 PM, Luca Barbato <[email protected]> wrote:
> From: Sam Lantinga <[email protected]>
>
> If the function returns E_PENDING retry for a fixed number of times.
>
> Signed-off-by: Luca Barbato <[email protected]>
> ---
> libavcodec/dxva2.c | 19 +++++++++++++------
> 1 file changed, 13 insertions(+), 6 deletions(-)
>
> diff --git a/libavcodec/dxva2.c b/libavcodec/dxva2.c
> index bc43cae..eb7267b 100644
> --- a/libavcodec/dxva2.c
> +++ b/libavcodec/dxva2.c
> @@ -87,12 +87,19 @@ int ff_dxva2_common_end_frame(AVCodecContext *avctx,
> Picture *pic,
> unsigned buffer_count = 0;
> DXVA2_DecodeBufferDesc buffer[4];
> DXVA2_DecodeExecuteParams exec = { 0 };
> - int result;
> -
> - if (FAILED(IDirectXVideoDecoder_BeginFrame(ctx->decoder,
> - ff_dxva2_get_surface(pic),
> - NULL))) {
> - av_log(avctx, AV_LOG_ERROR, "Failed to begin frame\n");
> + int result, runs = 0;
> + HRESULT hr;
> +
> + do {
> + hr = IDirectXVideoDecoder_BeginFrame(ctx->decoder,
> + ff_dxva2_get_surface(pic),
> + NULL);
> + if (hr == E_PENDING)
> + av_usleep(2);
usleep is still in microseconds, sleeping for 100µs in total won't do
you any good.
Use 2000, for 100ms in total.
> + } while (hr == E_PENDING && ++runs < 50);
> +
> + if (FAILED(hr)) {
> + av_log(avctx, AV_LOG_ERROR, "Failed to begin frame: 0x%x\n", hr);
> return -1;
> }
>
> --
> 1.8.5.1
>
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