From 51775bc1cdeff04b836422be66e8098146aedcce Mon Sep 17 00:00:00 2001 From: Kevin Wheatley Date: Mon, 30 Apr 2018 16:33:51 +0100 Subject: [PATCH] avfilter/vf_libvmaf: the libvmaf filter tried to join on an invalid thread id The thread id was invalid because it was not initialised during the calls to init_complex_filtergraph. This adds a flag to check for initialisation before trying to peform the join. Reviewed-by: Ronald S. Bultje Signed-off-by: Kevin Wheatley --- libavfilter/vf_libvmaf.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/libavfilter/vf_libvmaf.c b/libavfilter/vf_libvmaf.c index 42c6b66b69..5d47a74375 100644 --- a/libavfilter/vf_libvmaf.c +++ b/libavfilter/vf_libvmaf.c @@ -43,6 +43,7 @@ typedef struct LIBVMAFContext { int width; int height; double vmaf_score; + int vmaf_thread_created; pthread_t vmaf_thread; pthread_mutex_t lock; pthread_cond_t cond; @@ -228,6 +229,7 @@ static av_cold int init(AVFilterContext *ctx) s->gmain = av_frame_alloc(); s->error = 0; + s->vmaf_thread_created = 0; pthread_mutex_init(&s->lock, NULL); pthread_cond_init (&s->cond, NULL); @@ -275,6 +277,7 @@ static int config_input_ref(AVFilterLink *inlink) av_log(ctx, AV_LOG_ERROR, "Thread creation failed.\n"); return AVERROR(EINVAL); } + s->vmaf_thread_created = 1; return 0; } @@ -317,7 +320,11 @@ static av_cold void uninit(AVFilterContext *ctx) pthread_cond_signal(&s->cond); pthread_mutex_unlock(&s->lock); - pthread_join(s->vmaf_thread, NULL); + if (s->vmaf_thread_created) + { + pthread_join(s->vmaf_thread, NULL); + s->vmaf_thread_created = 0; + } av_frame_free(&s->gref); av_frame_free(&s->gmain);