Remove unnecessary parameter from ff_thread_init() and fix behavior

thread_count passed to ff_thread_init() is only used to set AVCodecContext.
thread_count, and can be removed. Instead move it to the legacy implementation
of avcodec_thread_init().

This also fixes the problem that calling avcodec_thread_init() with pthreads
enabled did not set it since ff1efc524cb3c60f2f746e3b4550bb1a86c65316.

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

1 files changed, 4 insertions, 5 deletions

diff --git a/libavcodec/w32thread.c b/libavcodec/w32thread.c
index 27a928e..023be0e 100644
--- a/libavcodec/w32thread.c
+++ b/libavcodec/w32thread.c
@@ -125,7 +125,7 @@ static int avcodec_thread_execute2(AVCodecContext *s, int (*func)(AVCodecContext
     avcodec_thread_execute(s, NULL, arg, ret, count, 0);
 }
 
-int ff_thread_init(AVCodecContext *s, int thread_count){
+int ff_thread_init(AVCodecContext *s){
     int i;
     ThreadContext *c;
     uint32_t threadid;
@@ -135,14 +135,13 @@ int ff_thread_init(AVCodecContext *s, int thread_count){
         return 0;
     }
 
-    s->thread_count= thread_count;
     s->active_thread_type= FF_THREAD_SLICE;
 
-    if (thread_count <= 1)
+    if (s->thread_count <= 1)
         return 0;
 
     assert(!s->thread_opaque);
-    c= av_mallocz(sizeof(ThreadContext)*thread_count);
+    c= av_mallocz(sizeof(ThreadContext)*s->thread_count);
     s->thread_opaque= c;
     if(!(c[0].work_sem = CreateSemaphore(NULL, 0, INT_MAX, NULL)))
         goto fail;
@@ -151,7 +150,7 @@ int ff_thread_init(AVCodecContext *s, int thread_count){
     if(!(c[0].done_sem = CreateSemaphore(NULL, 0, INT_MAX, NULL)))
         goto fail;
 
-    for(i=0; i<thread_count; i++){
+    for(i=0; i<s->thread_count; i++){
 //printf("init semaphors %d\n", i); fflush(stdout);
         c[i].avctx= s;
         c[i].work_sem = c[0].work_sem;