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Merged revisions 167095 via svnmerge from

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https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r167095 | tilghman | 2008-12-31 18:01:22 -0600 (Wed, 31 Dec 2008) | 5 lines
  
  Repeat attempts to write when we receive -EAGAIN from the driver, as detailed
  in the ALSA sample code (see http://www.alsa-project.org/alsa-doc/alsa-lib/_2test_2pcm_8c-example.html#a32)
  Reported by: Jerry Geis (via the -users list)
  Fixed by: me (license 14)
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@168526 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Tilghman Lesher
2009-01-12 23:45:51 +00:00
parent 1aa7233f0c
commit c02a52075c
1 changed files with 6 additions and 2 deletions
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8
channels/chan_alsa.c
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@@ -381,13 +381,17 @@ static int alsa_write(struct ast_channel *chan, struct ast_frame *f)
state = snd_pcm_state(alsa.ocard); state = snd_pcm_state(alsa.ocard);
if (state == SND_PCM_STATE_XRUN) if (state == SND_PCM_STATE_XRUN)
snd_pcm_prepare(alsa.ocard); snd_pcm_prepare(alsa.ocard);
res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2); while ((res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2)) == -EAGAIN) {
usleep(1);
}
if (res == -EPIPE) { if (res == -EPIPE) {
#if DEBUG #if DEBUG
ast_debug(1, "XRUN write\n"); ast_debug(1, "XRUN write\n");
#endif #endif
snd_pcm_prepare(alsa.ocard); snd_pcm_prepare(alsa.ocard);
res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2); while ((res = snd_pcm_writei(alsa.ocard, sizbuf, len / 2)) == -EAGAIN) {
usleep(1);
}
if (res != len / 2) { if (res != len / 2) {
ast_log(LOG_ERROR, "Write error: %s\n", snd_strerror(res)); ast_log(LOG_ERROR, "Write error: %s\n", snd_strerror(res));
res = -1; res = -1;