[FFmpeg-devel] [PATCH v3] avfilter/src_movie: make the number of decode thread configurable

[Paul B Mahol]

On Sat, Nov 6, 2021 at 2:48 PM <lance.lmwang at gmail.com> wrote:

> From: Limin Wang <lance.lmwang at gmail.com>
>
> Please use threads option if you want the number of thread configurable.
>
>
Generally bad idea to use number of filtering threads for decoding threads.


> Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> ---
>  libavfilter/src_movie.c | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/libavfilter/src_movie.c b/libavfilter/src_movie.c
> index 573f363..5811675 100644
> --- a/libavfilter/src_movie.c
> +++ b/libavfilter/src_movie.c
> @@ -169,7 +169,9 @@ static int open_stream(AVFilterContext *ctx,
> MovieStream *st)
>      if (ret < 0)
>          return ret;
>
> -    st->codec_ctx->thread_count = ff_filter_get_nb_threads(ctx);
> +    if (!ctx->nb_threads)
> +        ctx->nb_threads = ff_filter_get_nb_threads(ctx);
> +    st->codec_ctx->thread_count = ctx->nb_threads;
>
>      if ((ret = avcodec_open2(st->codec_ctx, codec, NULL)) < 0) {
>          av_log(ctx, AV_LOG_ERROR, "Failed to open codec\n");
> --
> 1.8.3.1
>
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