alsa_write: Avoid spurious underrun warnings.

Receiving EPIPE does not necessarily mean that an underrun occurred. We
also have to check the pcm state.

diff --git a/alsa_write.c b/alsa_write.c
index 2d834022427d309289eee12b14a6c07450a1125f..bbbf8b650ac86c4952ac46f22c166583018bfb88 100644 (file)
--- a/alsa_write.c
+++ b/alsa_write.c
@@ -331,7 +331,11 @@ again:
                goto again;
        }
        if (frames == -EPIPE) {
-               PARA_WARNING_LOG("underrun (tried to write %zu bytes)\n", bytes);
+               snd_pcm_status_t *status;
+               snd_pcm_status_malloc(&status);
+               if (snd_pcm_status_get_state(status) == SND_PCM_STATE_XRUN)
+                       PARA_WARNING_LOG("underrun\n");
+               snd_pcm_status_free(status);
                snd_pcm_prepare(pad->handle);
                return 0;
        }