[FFmpeg-devel] [PATCH 2/2] avcodec/vvc: Don't create new thread when thread_count is 1

* [FFmpeg-devel] [PATCH 2/2] avcodec/vvc: Don't create new thread when thread_count is 1
       [not found] <20240624044744.52915-1-quinkblack@foxmail.com>
@ 2024-06-24  4:47 ` Zhao Zhili
  0 siblings, 0 replies; 2+ messages in thread
From: Zhao Zhili @ 2024-06-24  4:47 UTC (permalink / raw)
  To: ffmpeg-devel; +Cc: Zhao Zhili

From: Zhao Zhili <zhilizhao@tencent.com>

Make its behavior consistent with other decoders, e.g., H.264/H.265.

Signed-off-by: Zhao Zhili <zhilizhao@tencent.com>
---
 libavcodec/vvc/dec.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavcodec/vvc/dec.c b/libavcodec/vvc/dec.c
index f5603306f3..4ce2b1c6bd 100644
--- a/libavcodec/vvc/dec.c
+++ b/libavcodec/vvc/dec.c
@@ -1024,7 +1024,7 @@ static av_cold int vvc_decode_init(AVCodecContext *avctx)
     static AVOnce init_static_once = AV_ONCE_INIT;
     const int cpu_count            = av_cpu_count();
     const int delayed              = FFMIN(cpu_count, VVC_MAX_DELAYED_FRAMES);
-    const int thread_count         = avctx->thread_count ? avctx->thread_count : delayed;
+    int thread_count               = avctx->thread_count ? avctx->thread_count : delayed;
     int ret;
 
     s->avctx = avctx;
@@ -1051,6 +1051,8 @@ static av_cold int vvc_decode_init(AVCodecContext *avctx)
             return ret;
     }
 
+    if (thread_count == 1)
+        thread_count = 0;
     s->executor = ff_vvc_executor_alloc(s, thread_count);
     if (!s->executor)
         return AVERROR(ENOMEM);
-- 
2.42.0

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