Fix some crashing in sdl_audio.

diff --git a/src/modules/sdl/consumer_sdl_audio.c b/src/modules/sdl/consumer_sdl_audio.c
index 94fc7a92d54261c912c0c8dcd370bfebac03a72f..552e9d20f5461af5c09a04f59793abb8bc1ee3e4 100644 (file)
--- a/src/modules/sdl/consumer_sdl_audio.c
+++ b/src/modules/sdl/consumer_sdl_audio.c
@@ -467,7 +467,7 @@ static void *consumer_thread( void *arg )
        int duration = 0;
        int64_t playtime = 0;
        struct timespec tm = { 0, 100000 };
-       int last_position = -1;
+//     int last_position = -1;
        this->refresh_count = 0;
 
        // Loop until told not to
@@ -536,20 +536,23 @@ static void *consumer_thread( void *arg )
                                pthread_mutex_unlock( &this->refresh_mutex );
                        }
                        else
+                       {
                                mlt_frame_close( frame );
+                               frame = NULL;
+                       }
 
                        // Optimisation to reduce latency
-                       if ( speed == 1.0 )
+                       if ( frame && speed == 1.0 )
                        {
                 // TODO: disabled due to misbehavior on parallel-consumer
 //                             if ( last_position != -1 && last_position + 1 != mlt_frame_get_position( frame ) )
 //                                     mlt_consumer_purge( consumer );
-                               last_position = mlt_frame_get_position( frame );
+//                             last_position = mlt_frame_get_position( frame );
                        }
                        else
                        {
                                mlt_consumer_purge( consumer );
-                               last_position = -1;
+//                             last_position = -1;
                        }
                }
        }