Module: libav Branch: release/0.6 Commit: 81d5ceff04985c71a5bc84f7c88a6487c0afaf61
Author: Justin Ruggles <[email protected]> Committer: Reinhard Tartler <[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. (cherry picked from commit 8bfd7f6a475225a0595bf657f8b99a8fffb461e4) Signed-off-by: Anton Khirnov <[email protected]> Signed-off-by: Reinhard Tartler <[email protected]> --- 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 38cb0de..12195de 100644 --- a/libavdevice/alsa-audio-common.c +++ b/libavdevice/alsa-audio-common.c @@ -129,6 +129,8 @@ 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
