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vaapi_encode: Sync to input surface rather than output

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While outwardly bizarre, this change makes the behaviour consistent
with other VAAPI encoders which sync to the encode /input/ picture in
order to wait for /output/ from the encoder.  It is not harmful on
i965 (because synchronisation already happens in vaRenderPicture(),
so it has no effect there), and it allows the encoder to work on
mesa/gallium which assumes this behaviour.

(cherry picked from commit 086e4b58b5)
This commit is contained in:
Mark Thompson 2016-09-18 16:06:55 +01:00
parent 478a4b7e6d
commit 94f446c628
1 changed files with 3 additions and 3 deletions
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6
libavcodec/vaapi_encode.c
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@ -109,10 +109,10 @@ static int vaapi_encode_wait(AVCodecContext *avctx,
}
av_log(avctx, AV_LOG_DEBUG, "Sync to pic %"PRId64"/%"PRId64" "
"(recon surface %#x).\n", pic->display_order,
pic->encode_order, pic->recon_surface);
"(input surface %#x).\n", pic->display_order,
pic->encode_order, pic->input_surface);
vas = vaSyncSurface(ctx->hwctx->display, pic->recon_surface);
vas = vaSyncSurface(ctx->hwctx->display, pic->input_surface);
if (vas != VA_STATUS_SUCCESS) {
av_log(avctx, AV_LOG_ERROR, "Failed to sync to picture completion: "
"%d (%s).\n", vas, vaErrorStr(vas));