[pulseaudio-commits] r2225 - in /branches/glitch-free/src/pulsecore: sink-input.c sink.c sink.h source-output.c source.c source.h

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Tue Apr 8 18:16:43 PDT 2008


Author: lennart
Date: Wed Apr  9 03:16:43 2008
New Revision: 2225

URL: http://0pointer.de/cgi-bin/viewcvs.cgi?rev=2225&root=pulseaudio&view=rev
Log:
export both min and max latency that is configured for a sink; add API for querying the requested latency of a sink/source from the main thread

Modified:
    branches/glitch-free/src/pulsecore/sink-input.c
    branches/glitch-free/src/pulsecore/sink.c
    branches/glitch-free/src/pulsecore/sink.h
    branches/glitch-free/src/pulsecore/source-output.c
    branches/glitch-free/src/pulsecore/source.c
    branches/glitch-free/src/pulsecore/source.h

Modified: branches/glitch-free/src/pulsecore/sink-input.c
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/glitch-free/src/pulsecore/sink-input.c?rev=2225&root=pulseaudio&r1=2224&r2=2225&view=diff
==============================================================================
--- branches/glitch-free/src/pulsecore/sink-input.c (original)
+++ branches/glitch-free/src/pulsecore/sink-input.c Wed Apr  9 03:16:43 2008
@@ -677,13 +677,21 @@
 pa_usec_t pa_sink_input_set_requested_latency(pa_sink_input *i, pa_usec_t usec) {
     pa_sink_input_assert_ref(i);
 
-    if (usec < i->sink->min_latency)
-        usec = i->sink->min_latency;
+    if (usec > 0) {
+
+        if (i->sink->max_latency > 0 && usec > i->sink->max_latency)
+            usec = i->sink->max_latency;
+
+        if (i->sink->min_latency > 0 && usec < i->sink->min_latency)
+            usec = i->sink->min_latency;
+    }
 
     if (PA_SINK_INPUT_LINKED(i->state))
         pa_asyncmsgq_post(i->sink->asyncmsgq, PA_MSGOBJECT(i), PA_SINK_INPUT_MESSAGE_SET_REQUESTED_LATENCY, NULL, (int64_t) usec, NULL, NULL);
-    else
+    else {
         i->thread_info.requested_sink_latency = usec;
+        i->sink->thread_info.requested_latency_valid = FALSE;
+    }
 
     return usec;
 }

Modified: branches/glitch-free/src/pulsecore/sink.c
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/glitch-free/src/pulsecore/sink.c?rev=2225&root=pulseaudio&r1=2224&r2=2225&view=diff
==============================================================================
--- branches/glitch-free/src/pulsecore/sink.c (original)
+++ branches/glitch-free/src/pulsecore/sink.c Wed Apr  9 03:16:43 2008
@@ -188,6 +188,7 @@
     s->silence = pa_silence_memblock_new(core->mempool, &s->sample_spec, 0);
 
     s->min_latency = DEFAULT_MIN_LATENCY;
+    s->max_latency = s->min_latency;
 
     s->thread_info.inputs = pa_hashmap_new(pa_idxset_trivial_hash_func, pa_idxset_trivial_compare_func);
     s->thread_info.soft_volume = s->volume;
@@ -277,6 +278,8 @@
     pa_assert(s->state == PA_SINK_INIT);
     pa_assert(s->asyncmsgq);
     pa_assert(s->rtpoll);
+
+    pa_assert(!s->min_latency || !s->max_latency || s->min_latency <= s->max_latency);
 
     if (s->get_volume && s->set_volume)
         s->flags |= PA_SINK_HW_VOLUME_CTRL;
@@ -1132,13 +1135,20 @@
              * asyncmsgq and rtpoll fields can be changed without
              * problems */
             pa_sink_detach_within_thread(s);
-            break;
+            return 0;
 
         case PA_SINK_MESSAGE_ATTACH:
 
             /* Reattach all streams */
             pa_sink_attach_within_thread(s);
-            break;
+            return 0;
+
+        case PA_SINK_MESSAGE_GET_REQUESTED_LATENCY: {
+
+            pa_usec_t *usec = userdata;
+            *usec = pa_sink_get_requested_latency_within_thread(s);
+            return 0;
+        }
 
         case PA_SINK_MESSAGE_GET_LATENCY:
         case PA_SINK_MESSAGE_MAX:
@@ -1223,7 +1233,7 @@
         s->request_rewind(s);
 }
 
-pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
+pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s) {
     pa_usec_t result = 0;
     pa_sink_input *i;
     void *state = NULL;
@@ -1239,10 +1249,33 @@
             (!result || result > i->thread_info.requested_sink_latency))
             result = i->thread_info.requested_sink_latency;
 
+    if (result > 0) {
+        if (s->max_latency > 0 && result > s->max_latency)
+            result = s->max_latency;
+
+        if (s->min_latency > 0 && result < s->min_latency)
+            result = s->min_latency;
+    }
+
     s->thread_info.requested_latency = result;
     s->thread_info.requested_latency_valid = TRUE;
 
     return result;
+}
+
+pa_usec_t pa_sink_get_requested_latency(pa_sink *s) {
+    pa_usec_t usec = 0;
+
+    pa_sink_assert_ref(s);
+    pa_assert(PA_SINK_LINKED(s->state));
+
+    if (!PA_SINK_OPENED(s->state))
+        return 0;
+
+    if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SINK_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) < 0)
+        return 0;
+
+    return usec;
 }
 
 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind) {

Modified: branches/glitch-free/src/pulsecore/sink.h
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/glitch-free/src/pulsecore/sink.h?rev=2225&root=pulseaudio&r1=2224&r2=2225&view=diff
==============================================================================
--- branches/glitch-free/src/pulsecore/sink.h (original)
+++ branches/glitch-free/src/pulsecore/sink.h Wed Apr  9 03:16:43 2008
@@ -91,7 +91,8 @@
 
     pa_memblock *silence;
 
-    pa_usec_t min_latency; /* we won't go below this latency setting */
+    pa_usec_t min_latency; /* we won't go below this latency */
+    pa_usec_t max_latency; /* An upper limit for the latencies */
 
     int (*set_state)(pa_sink *s, pa_sink_state_t state); /* may be NULL */
     int (*set_volume)(pa_sink *s);             /* dito */
@@ -135,6 +136,7 @@
     PA_SINK_MESSAGE_GET_MUTE,
     PA_SINK_MESSAGE_SET_MUTE,
     PA_SINK_MESSAGE_GET_LATENCY,
+    PA_SINK_MESSAGE_GET_REQUESTED_LATENCY,
     PA_SINK_MESSAGE_SET_STATE,
     PA_SINK_MESSAGE_PING,
     PA_SINK_MESSAGE_REMOVE_INPUT_AND_BUFFER,
@@ -191,6 +193,7 @@
 
 /* The returned value is supposed to be in the time domain of the sound card! */
 pa_usec_t pa_sink_get_latency(pa_sink *s);
+pa_usec_t pa_sink_get_requested_latency(pa_sink *s);
 
 int pa_sink_update_status(pa_sink*s);
 int pa_sink_suspend(pa_sink *s, pa_bool_t suspend);
@@ -227,7 +230,7 @@
 void pa_sink_attach_within_thread(pa_sink *s);
 void pa_sink_detach_within_thread(pa_sink *s);
 
-pa_usec_t pa_sink_get_requested_latency(pa_sink *s);
+pa_usec_t pa_sink_get_requested_latency_within_thread(pa_sink *s);
 
 void pa_sink_set_max_rewind(pa_sink *s, size_t max_rewind);
 

Modified: branches/glitch-free/src/pulsecore/source-output.c
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/glitch-free/src/pulsecore/source-output.c?rev=2225&root=pulseaudio&r1=2224&r2=2225&view=diff
==============================================================================
--- branches/glitch-free/src/pulsecore/source-output.c (original)
+++ branches/glitch-free/src/pulsecore/source-output.c Wed Apr  9 03:16:43 2008
@@ -364,13 +364,22 @@
     pa_source_output_assert_ref(o);
     pa_assert(PA_SOURCE_OUTPUT_LINKED(o->state));
 
-    if (usec < o->source->min_latency)
-        usec = o->source->min_latency;
+    if (usec > 0) {
+
+        if (o->source->max_latency > 0 && usec > o->source->max_latency)
+            usec = o->source->max_latency;
+
+        if (o->source->min_latency > 0 && usec < o->source->min_latency)
+            usec = o->source->min_latency;
+
+    }
 
     if (PA_SOURCE_OUTPUT_LINKED(o->state))
         pa_asyncmsgq_post(o->source->asyncmsgq, PA_MSGOBJECT(o), PA_SOURCE_OUTPUT_MESSAGE_SET_REQUESTED_LATENCY, NULL, (int64_t) usec, NULL, NULL);
-    else
+    else {
         o->thread_info.requested_source_latency = usec;
+        o->source->thread_info.requested_latency_valid = FALSE;
+    }
 
     return usec;
 }

Modified: branches/glitch-free/src/pulsecore/source.c
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/glitch-free/src/pulsecore/source.c?rev=2225&root=pulseaudio&r1=2224&r2=2225&view=diff
==============================================================================
--- branches/glitch-free/src/pulsecore/source.c (original)
+++ branches/glitch-free/src/pulsecore/source.c Wed Apr  9 03:16:43 2008
@@ -166,6 +166,7 @@
     s->refresh_volume = s->refresh_muted = FALSE;
 
     s->min_latency = DEFAULT_MIN_LATENCY;
+    s->max_latency = s->min_latency;
 
     s->get_latency = NULL;
     s->set_volume = NULL;
@@ -243,6 +244,8 @@
     pa_assert(s->rtpoll);
     pa_assert(s->asyncmsgq);
 
+    pa_assert(!s->min_latency || !s->max_latency || s->min_latency <= s->max_latency);
+
     if (s->get_volume && s->set_volume)
         s->flags |= PA_SOURCE_HW_VOLUME_CTRL;
     else {
@@ -616,13 +619,20 @@
              * asyncmsgq and rtpoll fields can be changed without
              * problems */
             pa_source_detach_within_thread(s);
-            break;
+            return 0;
 
         case PA_SOURCE_MESSAGE_ATTACH:
 
             /* Reattach all streams */
             pa_source_attach_within_thread(s);
-            break;
+            return 0;
+
+        case PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY: {
+
+            pa_usec_t *usec = userdata;
+            *usec = pa_source_get_requested_latency_within_thread(s);
+            return 0;
+        }
 
         case PA_SOURCE_MESSAGE_GET_LATENCY:
         case PA_SOURCE_MESSAGE_MAX:
@@ -683,7 +693,7 @@
             o->attach(o);
 }
 
-pa_usec_t pa_source_get_requested_latency(pa_source *s) {
+pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s) {
     pa_usec_t result = 0;
     pa_source_output *o;
     void *state = NULL;
@@ -699,12 +709,35 @@
             (!result || result > o->thread_info.requested_source_latency))
             result = o->thread_info.requested_source_latency;
 
+    if (result > 0) {
+        if (s->max_latency > 0 && result > s->max_latency)
+            result = s->max_latency;
+
+        if (s->min_latency > 0 && result < s->min_latency)
+            result = s->min_latency;
+    }
+
     s->thread_info.requested_latency = result;
     s->thread_info.requested_latency_valid = TRUE;
 
     return result;
 }
 
+pa_usec_t pa_source_get_requested_latency(pa_source *s) {
+    pa_usec_t usec;
+
+    pa_source_assert_ref(s);
+    pa_assert(PA_SOURCE_LINKED(s->state));
+
+    if (!PA_SOURCE_OPENED(s->state))
+        return 0;
+
+    if (pa_asyncmsgq_send(s->asyncmsgq, PA_MSGOBJECT(s), PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY, &usec, 0, NULL) < 0)
+        return 0;
+
+    return usec;
+}
+
 void pa_source_invalidate_requested_latency(pa_source *s) {
 
     pa_source_assert_ref(s);

Modified: branches/glitch-free/src/pulsecore/source.h
URL: http://0pointer.de/cgi-bin/viewcvs.cgi/branches/glitch-free/src/pulsecore/source.h?rev=2225&root=pulseaudio&r1=2224&r2=2225&view=diff
==============================================================================
--- branches/glitch-free/src/pulsecore/source.h (original)
+++ branches/glitch-free/src/pulsecore/source.h Wed Apr  9 03:16:43 2008
@@ -92,6 +92,7 @@
     pa_rtpoll *rtpoll;
 
     pa_usec_t min_latency; /* we won't go below this latency setting */
+    pa_usec_t max_latency; /* An upper limit for the latencies */
 
     int (*set_state)(pa_source*source, pa_source_state_t state); /* may be NULL */
     int (*set_volume)(pa_source *s);         /* dito */
@@ -127,6 +128,7 @@
     PA_SOURCE_MESSAGE_GET_MUTE,
     PA_SOURCE_MESSAGE_SET_MUTE,
     PA_SOURCE_MESSAGE_GET_LATENCY,
+    PA_SOURCE_MESSAGE_GET_REQUESTED_LATENCY,
     PA_SOURCE_MESSAGE_SET_STATE,
     PA_SOURCE_MESSAGE_PING,
     PA_SOURCE_MESSAGE_ATTACH,
@@ -181,6 +183,7 @@
 /* May be called by everyone, from main context */
 
 pa_usec_t pa_source_get_latency(pa_source *s);
+pa_usec_t pa_source_get_requested_latency(pa_source *s);
 
 int pa_source_update_status(pa_source*s);
 int pa_source_suspend(pa_source *s, pa_bool_t suspend);
@@ -206,7 +209,7 @@
 void pa_source_attach_within_thread(pa_source *s);
 void pa_source_detach_within_thread(pa_source *s);
 
-pa_usec_t pa_source_get_requested_latency(pa_source *s);
+pa_usec_t pa_source_get_requested_latency_within_thread(pa_source *s);
 
 /* To be called exclusively by source output drivers, from IO context */
 




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