@@ -2531,7 +2531,7 @@ static int audio_decode_frame(VideoState *is)

 static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)

 {

     VideoState *is = opaque;

-    int audio_size, len1, silence = 0;

+    int audio_size, len1;

     audio_callback_time = av_gettime_relative();

@@ -2540,7 +2540,7 @@ static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)

            audio_size = audio_decode_frame(is);

            if (audio_size < 0) {

                 /* if error, just output silence */

-               silence = 1;

+               is->audio_buf = NULL;

                is->audio_buf_size = SDL_AUDIO_MIN_BUFFER_SIZE / is->audio_tgt.frame_size * is->audio_tgt.frame_size;

            } else {

                if (is->show_mode != SHOW_MODE_VIDEO)

@@ -2552,11 +2552,11 @@ static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)

         len1 = is->audio_buf_size - is->audio_buf_index;

         if (len1 > len)

             len1 = len;

-        if (!is->muted && !silence && is->audio_volume == SDL_MIX_MAXVOLUME)

+        if (!is->muted && is->audio_buf && is->audio_volume == SDL_MIX_MAXVOLUME)

             memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);

         else {

             memset(stream, 0, len1);

-            if (!is->muted && !silence)

+            if (!is->muted && is->audio_buf)

                 SDL_MixAudio(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1, is->audio_volume);

         }

         len -= len1;