Make avcodec_thread_init() set the thread count, even in the case when

threads support is not enabled. This should avoid the need for
thread_count explicit setting in applications.

Originally committed as revision 18670 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavcodec/utils.c

@@ -985,6 +985,7 @@ int av_get_bits_per_sample_format(enum SampleFormat sample_fmt) {
 
 #if !HAVE_THREADS
 int avcodec_thread_init(AVCodecContext *s, int thread_count){
+    s->thread_count = thread_count;
     return -1;
 }
 #endif