From 5cdef40a789822c7d859cd756e781b91893f2c0d Mon Sep 17 00:00:00 2001 From: Mans Rullgard Date: Wed, 2 Mar 2011 13:08:15 +0000 Subject: [PATCH] threads: allow thread count of zero This moves setting the thread count to a minimum of 1 to frame_thread_init(), allowing a value of zero to propagate through to the codec if frame threading is not used. This makes auto-threads work in libx264. Signed-off-by: Mans Rullgard (cherry picked from commit ff1efc524cb3c60f2f746e3b4550bb1a86c65316) --- libavcodec/pthread.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/libavcodec/pthread.c b/libavcodec/pthread.c index 5b0d108ba5..658dbacb89 100644 --- a/libavcodec/pthread.c +++ b/libavcodec/pthread.c @@ -683,6 +683,11 @@ static int frame_thread_init(AVCodecContext *avctx) FrameThreadContext *fctx; int i, err = 0; + if (thread_count <= 1) { + avctx->active_thread_type = 0; + return 0; + } + avctx->thread_opaque = fctx = av_mallocz(sizeof(FrameThreadContext)); fctx->threads = av_mallocz(sizeof(PerThreadContext) * thread_count); @@ -882,8 +887,6 @@ int ff_thread_init(AVCodecContext *avctx, int thread_count) return -1; } - avctx->thread_count = FFMAX(1, thread_count); - if (avctx->codec) { validate_thread_parameters(avctx);