alsa_write: Handle EPIPE errors properly.

There's no need to throw away the data if a buffer underrun occurs.
Just try to write the same data again after the snd_pcm_prepare().

diff --git a/alsa_write.c b/alsa_write.c
index b10d5c62faa910dc92757e4ce77afc818c0a676a..f016e6ff74aeb16dcc764d0b482764e347fd60b1 100644 (file)
--- a/alsa_write.c
+++ b/alsa_write.c
@@ -181,6 +181,8 @@ static int alsa_write_post_select(__a_unused struct sched *s,
        if (ret == -EPIPE) {
                PARA_WARNING_LOG("EPIPE\n");
                snd_pcm_prepare(pad->handle);
+               /* try to write the same data again */
+               ret = snd_pcm_writei(pad->handle, data, frames);
                return 1;
        }
        if (ret < 0 && ret != -EAGAIN) {