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1bc7f2beed
pulseaudio/0024-core-introduce-pa_-sink-source-_set_fixed_latency.patch

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From c2a3d914804cd5c72463f41a21ff5cff5334b619 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Fri, 8 May 2009 01:56:21 +0200
Subject: [PATCH] core: introduce pa_{sink,source}_set_fixed_latency()
This allows us to forward the fixed latency directly from the sink to
the monitor source withut having to wait for pa_sink_put().
---
src/modules/alsa/alsa-sink.c | 4 ++--
src/modules/alsa/alsa-source.c | 4 ++--
src/modules/bluetooth/module-bluetooth-device.c | 12 ++++++------
src/modules/module-pipe-sink.c | 2 +-
src/modules/module-pipe-source.c | 2 +-
src/modules/module-sine-source.c | 3 +--
src/modules/oss/module-oss.c | 4 ++--
src/pulsecore/sink.c | 16 ++++++++++++++++
src/pulsecore/sink.h | 1 +
src/pulsecore/source.c | 15 +++++++++++++++
src/pulsecore/source.h | 1 +
11 files changed, 48 insertions(+), 16 deletions(-)
diff --git a/src/modules/alsa/alsa-sink.c b/src/modules/alsa/alsa-sink.c
index a544b58..94e15df 100644
--- a/src/modules/alsa/alsa-sink.c
+++ b/src/modules/alsa/alsa-sink.c
@@ -473,7 +473,7 @@ static int mmap_write(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polle
u->since_start += frames * u->frame_size;
#ifdef DEBUG_TIMING
- pa_log_debug("Wrote %lu bytes", (unsigned long) (frames * u->frame_size));
+ pa_log_debug("Wrote %lu bytes (of possible %lu bytes)", (unsigned long) (frames * u->frame_size), (unsigned long) n_bytes);
#endif
if ((size_t) frames * u->frame_size >= n_bytes)
@@ -1730,7 +1730,7 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca
pa_log_info("Time scheduling watermark is %0.2fms",
(double) pa_bytes_to_usec(u->tsched_watermark, &ss) / PA_USEC_PER_MSEC);
} else
- u->sink->fixed_latency = pa_bytes_to_usec(u->hwbuf_size, &ss);
+ pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(u->hwbuf_size, &ss));
reserve_update(u);
diff --git a/src/modules/alsa/alsa-source.c b/src/modules/alsa/alsa-source.c
index 5d8e349..c2f905a 100644
--- a/src/modules/alsa/alsa-source.c
+++ b/src/modules/alsa/alsa-source.c
@@ -455,7 +455,7 @@ static int mmap_read(struct userdata *u, pa_usec_t *sleep_usec, pa_bool_t polled
u->read_count += frames * u->frame_size;
#ifdef DEBUG_TIMING
- pa_log_debug("Read %lu bytes", (unsigned long) (frames * u->frame_size));
+ pa_log_debug("Read %lu bytes (of possible %lu bytes)", (unsigned long) (frames * u->frame_size), (unsigned long) n_bytes);
#endif
if ((size_t) frames * u->frame_size >= n_bytes)
@@ -1582,7 +1582,7 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p
pa_log_info("Time scheduling watermark is %0.2fms",
(double) pa_bytes_to_usec(u->tsched_watermark, &ss) / PA_USEC_PER_MSEC);
} else
- u->source->fixed_latency = pa_bytes_to_usec(u->hwbuf_size, &ss);
+ pa_source_set_fixed_latency(u->source, pa_bytes_to_usec(u->hwbuf_size, &ss));
reserve_update(u);
diff --git a/src/modules/bluetooth/module-bluetooth-device.c b/src/modules/bluetooth/module-bluetooth-device.c
index 90f6486..3465b80 100644
--- a/src/modules/bluetooth/module-bluetooth-device.c
+++ b/src/modules/bluetooth/module-bluetooth-device.c
@@ -1608,9 +1608,9 @@ static int add_sink(struct userdata *u) {
u->sink->parent.process_msg = sink_process_msg;
pa_sink_set_max_request(u->sink, u->block_size);
- u->sink->fixed_latency =
- (u->profile == PROFILE_A2DP ? FIXED_LATENCY_PLAYBACK_A2DP : FIXED_LATENCY_PLAYBACK_HSP) +
- pa_bytes_to_usec(u->block_size, &u->sample_spec);
+ pa_sink_set_fixed_latency(u->sink,
+ (u->profile == PROFILE_A2DP ? FIXED_LATENCY_PLAYBACK_A2DP : FIXED_LATENCY_PLAYBACK_HSP) +
+ pa_bytes_to_usec(u->block_size, &u->sample_spec));
}
if (u->profile == PROFILE_HSP) {
@@ -1659,9 +1659,9 @@ static int add_source(struct userdata *u) {
u->source->userdata = u;
u->source->parent.process_msg = source_process_msg;
- u->source->fixed_latency =
- (/* u->profile == PROFILE_A2DP ? FIXED_LATENCY_RECORD_A2DP : */ FIXED_LATENCY_RECORD_HSP) +
- pa_bytes_to_usec(u->block_size, &u->sample_spec);
+ pa_source_set_fixed_latency(u->source,
+ (/* u->profile == PROFILE_A2DP ? FIXED_LATENCY_RECORD_A2DP : */ FIXED_LATENCY_RECORD_HSP) +
+ pa_bytes_to_usec(u->block_size, &u->sample_spec));
}
if (u->profile == PROFILE_HSP) {
diff --git a/src/modules/module-pipe-sink.c b/src/modules/module-pipe-sink.c
index 9d3e55d..304d01c 100644
--- a/src/modules/module-pipe-sink.c
+++ b/src/modules/module-pipe-sink.c
@@ -293,7 +293,7 @@ int pa__init(pa_module*m) {
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
pa_sink_set_max_request(u->sink, PIPE_BUF);
- u->sink->fixed_latency = pa_bytes_to_usec(PIPE_BUF, &u->sink->sample_spec);
+ pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(PIPE_BUF, &u->sink->sample_spec));
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
diff --git a/src/modules/module-pipe-source.c b/src/modules/module-pipe-source.c
index df72d79..6ed4fbf 100644
--- a/src/modules/module-pipe-source.c
+++ b/src/modules/module-pipe-source.c
@@ -277,7 +277,7 @@ int pa__init(pa_module*m) {
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
pa_source_set_rtpoll(u->source, u->rtpoll);
- u->source->fixed_latency = pa_bytes_to_usec(PIPE_BUF, &u->source->sample_spec);
+ pa_source_set_fixed_latency(u->source, pa_bytes_to_usec(PIPE_BUF, &u->source->sample_spec));
u->rtpoll_item = pa_rtpoll_item_new(u->rtpoll, PA_RTPOLL_NEVER, 1);
pollfd = pa_rtpoll_item_get_pollfd(u->rtpoll_item, NULL);
diff --git a/src/modules/module-sine-source.c b/src/modules/module-sine-source.c
index a5f1ce7..a6e15d8 100644
--- a/src/modules/module-sine-source.c
+++ b/src/modules/module-sine-source.c
@@ -264,8 +264,7 @@ int pa__init(pa_module*m) {
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
pa_source_set_rtpoll(u->source, u->rtpoll);
- u->source->fixed_latency = u->block_usec;
-
+ pa_source_set_fixed_latency(u->source, u->block_usec);
if (!(u->thread = pa_thread_new(thread_func, u))) {
pa_log("Failed to create thread.");
diff --git a/src/modules/oss/module-oss.c b/src/modules/oss/module-oss.c
index aa5f918..d6f549c 100644
--- a/src/modules/oss/module-oss.c
+++ b/src/modules/oss/module-oss.c
@@ -1328,8 +1328,8 @@ int pa__init(pa_module*m) {
pa_source_set_asyncmsgq(u->source, u->thread_mq.inq);
pa_source_set_rtpoll(u->source, u->rtpoll);
+ pa_source_set_fixed_latency(u->source, pa_bytes_to_usec(u->in_hwbuf_size, &u->source->sample_spec));
u->source->refresh_volume = TRUE;
- u->source->fixed_latency = pa_bytes_to_usec(u->in_hwbuf_size, &u->source->sample_spec);
if (use_mmap)
u->in_mmap_memblocks = pa_xnew0(pa_memblock*, u->in_nfrags);
@@ -1390,8 +1390,8 @@ int pa__init(pa_module*m) {
pa_sink_set_asyncmsgq(u->sink, u->thread_mq.inq);
pa_sink_set_rtpoll(u->sink, u->rtpoll);
+ pa_sink_set_fixed_latency(u->sink, pa_bytes_to_usec(u->out_hwbuf_size, &u->sink->sample_spec));
u->sink->refresh_volume = TRUE;
- u->sink->fixed_latency = pa_bytes_to_usec(u->out_hwbuf_size, &u->sink->sample_spec);
pa_sink_set_max_request(u->sink, u->out_hwbuf_size);
diff --git a/src/pulsecore/sink.c b/src/pulsecore/sink.c
index c99f9a8..2225886 100644
--- a/src/pulsecore/sink.c
+++ b/src/pulsecore/sink.c
@@ -2054,6 +2054,22 @@ void pa_sink_set_latency_range_within_thread(pa_sink *s, pa_usec_t min_latency,
pa_source_set_latency_range_within_thread(s->monitor_source, min_latency, max_latency);
}
+/* Called from main thread, before the sink is put */
+void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency) {
+ pa_sink_assert_ref(s);
+
+ pa_assert(pa_sink_get_state(s) == PA_SINK_INIT);
+
+ if (latency < ABSOLUTE_MIN_LATENCY)
+ latency = ABSOLUTE_MIN_LATENCY;
+
+ if (latency > ABSOLUTE_MAX_LATENCY)
+ latency = ABSOLUTE_MAX_LATENCY;
+
+ s->fixed_latency = latency;
+ pa_source_set_fixed_latency(s->monitor_source, latency);
+}
+
/* Called from main context */
size_t pa_sink_get_max_rewind(pa_sink *s) {
size_t r;
diff --git a/src/pulsecore/sink.h b/src/pulsecore/sink.h
index 352282b..e33b3cf 100644
--- a/src/pulsecore/sink.h
+++ b/src/pulsecore/sink.h
@@ -229,6 +229,7 @@ void pa_sink_set_rtpoll(pa_sink *s, pa_rtpoll *p);
void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind);
void pa_sink_set_max_request(pa_sink *s, size_t max_request);
void pa_sink_set_latency_range(pa_sink *s, pa_usec_t min_latency, pa_usec_t max_latency);
+void pa_sink_set_fixed_latency(pa_sink *s, pa_usec_t latency);
void pa_sink_detach(pa_sink *s);
void pa_sink_attach(pa_sink *s);
diff --git a/src/pulsecore/source.c b/src/pulsecore/source.c
index 0baaed1..e8deaf7 100644
--- a/src/pulsecore/source.c
+++ b/src/pulsecore/source.c
@@ -1280,6 +1280,21 @@ void pa_source_set_latency_range_within_thread(pa_source *s, pa_usec_t min_laten
pa_source_invalidate_requested_latency(s);
}
+/* Called from main thread, before the source is put */
+void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency) {
+ pa_source_assert_ref(s);
+
+ pa_assert(pa_source_get_state(s) == PA_SOURCE_INIT);
+
+ if (latency < ABSOLUTE_MIN_LATENCY)
+ latency = ABSOLUTE_MIN_LATENCY;
+
+ if (latency > ABSOLUTE_MAX_LATENCY)
+ latency = ABSOLUTE_MAX_LATENCY;
+
+ s->fixed_latency = latency;
+}
+
/* Called from main thread */
size_t pa_source_get_max_rewind(pa_source *s) {
size_t r;
diff --git a/src/pulsecore/source.h b/src/pulsecore/source.h
index b502c22..2978f57 100644
--- a/src/pulsecore/source.h
+++ b/src/pulsecore/source.h
@@ -210,6 +210,7 @@ void pa_source_set_rtpoll(pa_source *s, pa_rtpoll *p);
void pa_source_set_max_rewind(pa_source *s, size_t max_rewind);
void pa_source_set_latency_range(pa_source *s, pa_usec_t min_latency, pa_usec_t max_latency);
+void pa_source_set_fixed_latency(pa_source *s, pa_usec_t latency);
void pa_source_detach(pa_source *s);
void pa_source_attach(pa_source *s);
--
1.6.0.2
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