diff options
| author | Justin Ruggles <[email protected]> | 2011-06-22 15:33:56 -0400 |
|---|---|---|
| committer | Reinhard Tartler <[email protected]> | 2011-09-26 19:26:28 +0200 |
| commit | 6ed533f56137f678ff8507012de14d277aded9cc (patch) | |
| tree | b44bf3fd7be7f1c2a02a897a5499fda4fcf308d7 | |
| parent | c75ba07f6eb83439bc44e5504152f8ca03097bec (diff) | |
alsa: fallback to buffer_size/4 for period_size.
buffer_size/4 is the value used by aplay. This fixes output to null
devices, e.g. writing ALSA output to a file.
(cherry picked from commit 8bfd7f6a475225a0595bf657f8b99a8fffb461e4)
Signed-off-by: Anton Khirnov <[email protected]>
| -rw-r--r-- | libavdevice/alsa-audio-common.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavdevice/alsa-audio-common.c b/libavdevice/alsa-audio-common.c index baa6ac79ca..4c7c881300 100644 --- a/libavdevice/alsa-audio-common.c +++ b/libavdevice/alsa-audio-common.c @@ -146,6 +146,8 @@ av_cold int ff_alsa_open(AVFormatContext *ctx, snd_pcm_stream_t mode, } snd_pcm_hw_params_get_period_size_min(hw_params, &period_size, NULL); + if (!period_size) + period_size = buffer_size / 4; res = snd_pcm_hw_params_set_period_size_near(h, hw_params, &period_size, NULL); if (res < 0) { av_log(ctx, AV_LOG_ERROR, "cannot set ALSA period size (%s)\n", |