Module: libav Branch: master Commit: 8bfd7f6a475225a0595bf657f8b99a8fffb461e4
Author: Justin Ruggles <[email protected]> Committer: Justin Ruggles <[email protected]> Date: Wed Jun 22 15:33:56 2011 -0400 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. --- 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 4cfc6e9..1e945fc 100644 --- a/libavdevice/alsa-audio-common.c +++ b/libavdevice/alsa-audio-common.c @@ -269,6 +269,8 @@ 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", _______________________________________________ libav-commits mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-commits
