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avcodec/nvenc: change flag of cuCtxCreate to avoid CPU spins

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Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>
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Agatha Hu 2015-09-11 10:54:08 +08:00 committed by Timo Rothenpieler
parent f58e011a1f
commit 81071eea7d
1 changed files with 1 additions and 1 deletions
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libavcodec/nvenc.c
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@ -580,7 +580,7 @@ static av_cold int nvenc_encode_init(AVCodecContext *avctx)
}
ctx->cu_context = NULL;
cu_res = dl_fn->cu_ctx_create(&ctx->cu_context, 0, dl_fn->nvenc_devices[ctx->gpu]);
cu_res = dl_fn->cu_ctx_create(&ctx->cu_context, 4, dl_fn->nvenc_devices[ctx->gpu]); // CU_CTX_SCHED_BLOCKING_SYNC=4, avoid CPU spins
if (cu_res != CUDA_SUCCESS) {
av_log(avctx, AV_LOG_FATAL, "Failed creating CUDA context for NVENC: 0x%x\n", (int)cu_res);