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unify smoother pause/resume handling in a single function check_smoother_status()

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This commit is contained in:
Lennart Poettering 2008-06-26 19:00:42 +02:00
parent dcbb7f2680
commit 36d6c712d8
1 changed files with 43 additions and 30 deletions
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73
src/pulse/stream.c
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@ -342,6 +342,41 @@ finish:
pa_context_unref(c);
}
static void check_smoother_status(pa_stream *s, pa_bool_t aposteriori, pa_bool_t force_start, pa_bool_t force_stop) {
pa_usec_t x;
pa_assert(s);
pa_assert(!force_start || !force_stop);
if (!s->smoother)
return;
x = pa_rtclock_usec();
if (s->timing_info_valid) {
if (aposteriori)
x -= s->timing_info.transport_usec;
else
x += s->timing_info.transport_usec;
if (s->direction == PA_STREAM_PLAYBACK)
/* it takes a while until the pause/resume is actually
* audible */
x += s->timing_info.sink_usec;
else
/* Data froma while back will be dropped */
x -= s->timing_info.source_usec;
}
if (s->suspended || s->corked || force_stop)
pa_smoother_pause(s->smoother, x);
else if (force_start || s->buffer_attr.prebuf == 0)
pa_smoother_resume(s->smoother, x);
/* Please note that we have no idea if playback actually started
* if prebuf is non-zero! */
}
void pa_command_stream_moved(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED uint32_t tag, pa_tagstruct *t, void *userdata) {
pa_context *c = userdata;
pa_stream *s;
@ -429,6 +464,7 @@ void pa_command_stream_moved(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUSED u
s->suspended = suspended;
check_smoother_status(s, TRUE, FALSE, FALSE);
request_auto_timing_update(s, TRUE);
if (s->moved_callback)
@ -472,18 +508,7 @@ void pa_command_stream_suspended(pa_pdispatch *pd, uint32_t command, PA_GCC_UNUS
s->suspended = suspended;
if (s->smoother) {
pa_usec_t x = pa_rtclock_usec();
if (s->timing_info_valid)
x -= s->timing_info.transport_usec;
if (s->suspended || s->corked)
pa_smoother_pause(s->smoother, x);
else
pa_smoother_resume(s->smoother, x);
}
check_smoother_status(s, TRUE, FALSE, FALSE);
request_auto_timing_update(s, TRUE);
if (s->suspended_callback)
@ -523,6 +548,7 @@ void pa_command_stream_started(pa_pdispatch *pd, uint32_t command, uint32_t tag,
if (s->state != PA_STREAM_READY)
goto finish;
check_smoother_status(s, TRUE, TRUE, FALSE);
request_auto_timing_update(s, TRUE);
if (s->started_callback)
@ -592,15 +618,8 @@ void pa_command_overflow_or_underflow(pa_pdispatch *pd, uint32_t command, PA_GCC
if (s->state != PA_STREAM_READY)
goto finish;
if (s->smoother)
if (s->direction == PA_STREAM_PLAYBACK && s->buffer_attr.prebuf > 0) {
pa_usec_t x = pa_rtclock_usec();
if (s->timing_info_valid)
x -= s->timing_info.transport_usec;
pa_smoother_pause(s->smoother, x);
}
if (s->buffer_attr.prebuf > 0)
check_smoother_status(s, TRUE, FALSE, TRUE);
request_auto_timing_update(s, TRUE);
@ -676,6 +695,8 @@ static void create_stream_complete(pa_stream *s) {
request_auto_timing_update(s, TRUE);
}
check_smoother_status(s, TRUE, FALSE, FALSE);
}
static void automatic_buffer_attr(pa_stream *s, pa_buffer_attr *attr, const pa_sample_spec *ss) {
@ -1704,15 +1725,7 @@ pa_operation* pa_stream_cork(pa_stream *s, int b, pa_stream_success_cb_t cb, voi
pa_pstream_send_tagstruct(s->context->pstream, t);
pa_pdispatch_register_reply(s->context->pdispatch, tag, DEFAULT_TIMEOUT, pa_stream_simple_ack_callback, pa_operation_ref(o), (pa_free_cb_t) pa_operation_unref);
if (s->smoother) {
pa_usec_t x = pa_rtclock_usec();
if (s->timing_info_valid)
x += s->timing_info.transport_usec;
if (s->suspended || s->corked)
pa_smoother_pause(s->smoother, x);
}
check_smoother_status(s, FALSE, FALSE, FALSE);
if (s->direction == PA_STREAM_PLAYBACK)
invalidate_indexes(s, TRUE, FALSE);