handling of end of .ogg file

src/audio.c

@@ -180,6 +180,16 @@ static void audio_sample_and_mixin_channel(struct audio_channel *channel,
                 (int16_t *)buffer,
                 n_frames);
 
+            /* handle end of file */
+            if (samples_per_channel == 0) {
+                if (channel->args.repeat)
+                    /* seek to start and try sampling some more */
+                    stb_vorbis_seek_start(channel->context.vorbis.handle);
+                else
+                    /* leave silence */
+                    break;
+            }
+
             /* panning and mixing */
 
 #if AUDIO_N_CHANNELS == 2