[FFmpeg-devel] [PATCH 1/2] avutil/executor: Allowing thread_count be zero

[Nuo Mi]

On Mon, Jun 24, 2024 at 12:48 PM Zhao Zhili <quinkblack at foxmail.com> wrote:

> From: Zhao Zhili <zhilizhao at tencent.com>
>
> Before the patch, disable threads support at configure/build time
> was the only method to force zero thread in executor. However,
> it's common practice for libavcodec to run on caller's thread when
> user specify thread number to one. And for WASM environment, whether
> threads are supported needs to be detected at runtime. So executor
> should support zero thread at runtime.
>
> A single thread executor can be useful, e.g., to handle network
> protocol. So we can't take thread_count one as zero thread, which
> disabled a valid usercase.
>
> Other libraries take -threads 0 to mean auto. Executor as a low
> level utils doesn't do cpu detect. So take thread_count zero as
> zero thread, literally.
>
> Signed-off-by: Zhao Zhili <zhilizhao at tencent.com>
>
Hi Zhili,
Thank you for the v2
I will merge it in 3 days if there are no objections.