Fix a memleak with win32 threads: the handle returned by _beginthreadex

must be closed (this differs from _beginthread).
Patch by Shehzad Salim (shehzadsalim gmail com)


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@19633 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

libavcodec/w32thread.c

@@ -69,6 +69,7 @@ void avcodec_thread_free(AVCodecContext *s){
         WaitForSingleObject(c[i].thread, INFINITE);
         if(c[i].work_sem) CloseHandle(c[i].work_sem);
         if(c[i].done_sem) CloseHandle(c[i].done_sem);
+        if(c[i].thread)   CloseHandle(c[i].thread);
     }
 
     av_freep(&s->thread_opaque);