forked from pool/alsa-utils
Takashi Iwai
3331bcfb82
* A few alsactl init fix patches: * amixer control-id parse fix * new aloop utility * robusitfy speaker-test * misc clean up, translation updates - Use systemd for openSUSE 11.4 - Put udev rules into this package instead of alsa.rpm OBS-URL: https://build.opensuse.org/package/show/multimedia:libs/alsa-utils?expand=0&rev=23
105 lines
3.4 KiB
Diff
105 lines
3.4 KiB
Diff
From d53eb0309df34f058b33c18210c8949c8a2d8b8e Mon Sep 17 00:00:00 2001
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From: Jaroslav Kysela <perex@perex.cz>
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Date: Wed, 20 Oct 2010 09:26:24 +0200
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Subject: [PATCH 33/38] alsaloop: Delay the restart a bit (to handle snd-aloop playback xruns better)
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Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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---
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alsaloop/alsaloop.h | 2 ++
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alsaloop/pcmjob.c | 33 ++++++++++++++++++++++++++-------
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2 files changed, 28 insertions(+), 7 deletions(-)
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diff --git a/alsaloop/alsaloop.h b/alsaloop/alsaloop.h
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index e506427..8dc445a 100644
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--- a/alsaloop/alsaloop.h
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+++ b/alsaloop/alsaloop.h
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@@ -143,6 +143,8 @@ struct loopback {
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unsigned int linked:1; /* linked streams */
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unsigned int reinit:1;
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unsigned int running:1;
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+ unsigned int stop_pending:1;
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+ snd_pcm_uframes_t stop_count;
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sync_type_t sync; /* type of sync */
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slave_type_t slave;
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int thread; /* thread number */
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diff --git a/alsaloop/pcmjob.c b/alsaloop/pcmjob.c
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index 925380c..23270a0 100644
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--- a/alsaloop/pcmjob.c
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+++ b/alsaloop/pcmjob.c
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@@ -738,6 +738,15 @@ static int writeit(struct loopback_handle *lhandle)
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lhandle->buf_pos += r;
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lhandle->buf_pos %= lhandle->buf_size;
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xrun_profile(lhandle->loopback);
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+ if (lhandle->loopback->stop_pending) {
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+ lhandle->loopback->stop_count += r;
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+ if (lhandle->loopback->stop_count * lhandle->pitch >
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+ lhandle->loopback->latency * 3) {
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+ lhandle->loopback->stop_pending = 0;
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+ lhandle->loopback->reinit = 1;
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+ break;
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+ }
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+ }
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}
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return res;
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}
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@@ -1521,6 +1530,7 @@ int pcmjob_start(struct loopback *loop)
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goto __error;
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}
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loop->running = 1;
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+ loop->stop_pending = 0;
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if (loop->xrun) {
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getcurtimestamp(&loop->xrun_last_update);
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loop->xrun_last_pdelay = XRUN_PROFILE_UNKNOWN;
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@@ -1638,6 +1648,7 @@ static int ctl_event_check(snd_ctl_elem_value_t *val, snd_ctl_event_t *ev)
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static int handle_ctl_events(struct loopback_handle *lhandle,
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unsigned short events)
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{
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+ struct loopback *loop = lhandle->loopback;
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snd_ctl_event_t *ev;
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int err;
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@@ -1647,16 +1658,24 @@ static int handle_ctl_events(struct loopback_handle *lhandle,
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break;
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if (snd_ctl_event_get_type(ev) != SND_CTL_EVENT_ELEM)
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continue;
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- if (lhandle == lhandle->loopback->play)
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+ if (lhandle == loop->play)
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goto __ctl_check;
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if (verbose > 6)
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- snd_output_printf(lhandle->loopback->output, "%s: ctl event!!!! %s\n", lhandle->id, snd_ctl_event_elem_get_name(ev));
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+ snd_output_printf(loop->output, "%s: ctl event!!!! %s\n", lhandle->id, snd_ctl_event_elem_get_name(ev));
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if (ctl_event_check(lhandle->ctl_active, ev)) {
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err = get_active(lhandle);
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if (verbose > 7)
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- snd_output_printf(lhandle->loopback->output, "%s: ctl event active %i\n", lhandle->id, err);
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- if (err != lhandle->loopback->running)
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- goto __restart;
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+ snd_output_printf(loop->output, "%s: ctl event active %i\n", lhandle->id, err);
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+ if (!err) {
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+ if (lhandle->loopback->running) {
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+ loop->stop_pending = 1;
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+ loop->stop_count = 0;
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+ }
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+ } else {
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+ loop->stop_pending = 0;
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+ if (loop->running == 0)
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+ goto __restart;
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+ }
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} else if (ctl_event_check(lhandle->ctl_format, ev)) {
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err = get_format(lhandle);
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if (lhandle->format != err)
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@@ -1676,8 +1695,8 @@ static int handle_ctl_events(struct loopback_handle *lhandle,
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return 0;
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__restart:
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- pcmjob_stop(lhandle->loopback);
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- err = pcmjob_start(lhandle->loopback);
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+ pcmjob_stop(loop);
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+ err = pcmjob_start(loop);
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if (err < 0)
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return err;
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return 1;
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--
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1.7.3.1
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