X-Git-Url: https://code.delx.au/pulseaudio/blobdiff_plain/fbefe67d52eb89a429505c653d1ea4ce73d4f4e7..fa499dad06ba6558111cdef64c18f2401e803cff:/polyp/sink-input.c

diff --git a/polyp/sink-input.c b/polyp/sink-input.c
index 7763f261..23b4a136 100644
--- a/polyp/sink-input.c
+++ b/polyp/sink-input.c
@@ -4,7 +4,7 @@
   This file is part of polypaudio.
  
   polypaudio is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published
+  it under the terms of the GNU Lesser General Public License as published
   by the Free Software Foundation; either version 2 of the License,
   or (at your option) any later version.
  
@@ -13,7 +13,7 @@
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   General Public License for more details.
  
-  You should have received a copy of the GNU General Public License
+  You should have received a copy of the GNU Lesser General Public License
   along with polypaudio; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
   USA.
@@ -36,23 +36,28 @@
 
 #define CONVERT_BUFFER_LENGTH 4096
 
-struct pa_sink_input* pa_sink_input_new(struct pa_sink *s, const char *name, const struct pa_sample_spec *spec) {
+struct pa_sink_input* pa_sink_input_new(struct pa_sink *s, const char *name, const struct pa_sample_spec *spec, int variable_rate, int resample_method) {
     struct pa_sink_input *i;
     struct pa_resampler *resampler = NULL;
     int r;
     char st[256];
-    assert(s && spec);
+    assert(s && spec && s->state == PA_SINK_RUNNING);
 
     if (pa_idxset_ncontents(s->inputs) >= PA_MAX_INPUTS_PER_SINK) {
         pa_log(__FILE__": Failed to create sink input: too many inputs per sink.\n");
         return NULL;
     }
+
+    if (resample_method < 0)
+        resample_method = s->core->resample_method;
     
-    if (!pa_sample_spec_equal(spec, &s->sample_spec))
-        if (!(resampler = pa_resampler_new(spec, &s->sample_spec, s->core->memblock_stat)))
+    if (variable_rate || !pa_sample_spec_equal(spec, &s->sample_spec))
+        if (!(resampler = pa_resampler_new(spec, &s->sample_spec, s->core->memblock_stat, resample_method)))
             return NULL;
     
     i = pa_xmalloc(sizeof(struct pa_sink_input));
+    i->ref = 1;
+    i->state = PA_SINK_INPUT_RUNNING;
     i->name = pa_xstrdup(name);
     i->client = NULL;
     i->owner = NULL;
@@ -64,9 +69,10 @@ struct pa_sink_input* pa_sink_input_new(struct pa_sink *s, const char *name, con
     i->kill = NULL;
     i->get_latency = NULL;
     i->userdata = NULL;
+    i->underrun = NULL;
 
-    i->corked = 0;
     i->volume = PA_VOLUME_NORM;
+    i->playing = 0;
 
     i->resampled_chunk.memblock = NULL;
     i->resampled_chunk.index = i->resampled_chunk.length = 0;
@@ -86,26 +92,53 @@ struct pa_sink_input* pa_sink_input_new(struct pa_sink *s, const char *name, con
     return i;    
 }
 
-void pa_sink_input_free(struct pa_sink_input* i) {
-    assert(i);
+void pa_sink_input_disconnect(struct pa_sink_input *i) {
+    assert(i && i->state != PA_SINK_INPUT_DISCONNECTED && i->sink && i->sink->core);
 
-    assert(i->sink && i->sink->core);
     pa_idxset_remove_by_data(i->sink->core->sink_inputs, i, NULL);
     pa_idxset_remove_by_data(i->sink->inputs, i, NULL);
 
+    pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_REMOVE, i->index);
+    i->sink = NULL;
+
+    i->peek = NULL;
+    i->drop = NULL;
+    i->kill = NULL;
+    i->get_latency = NULL;
+
+    i->state = PA_SINK_INPUT_DISCONNECTED;
+}
+
+static void sink_input_free(struct pa_sink_input* i) {
+    assert(i);
+
+    if (i->state != PA_SINK_INPUT_DISCONNECTED)
+        pa_sink_input_disconnect(i);
+
     if (i->resampled_chunk.memblock)
         pa_memblock_unref(i->resampled_chunk.memblock);
     if (i->resampler)
         pa_resampler_free(i->resampler);
 
-    pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_REMOVE, i->index);
-    
     pa_xfree(i->name);
     pa_xfree(i);
 }
 
+void pa_sink_input_unref(struct pa_sink_input *i) {
+    assert(i && i->ref >= 1);
+
+    if (!(--i->ref))
+        sink_input_free(i);
+}
+
+struct pa_sink_input* pa_sink_input_ref(struct pa_sink_input *i) {
+    assert(i && i->ref >= 1);
+    i->ref++;
+    return i;
+}
+
 void pa_sink_input_kill(struct pa_sink_input*i) {
-    assert(i);
+    assert(i && i->ref >= 1);
 
     if (i->kill)
         i->kill(i);
@@ -113,7 +146,7 @@ void pa_sink_input_kill(struct pa_sink_input*i) {
 
 pa_usec_t pa_sink_input_get_latency(struct pa_sink_input *i) {
     pa_usec_t r = 0;
-    assert(i);
+    assert(i && i->ref >= 1);
     
     if (i->get_latency)
         r += i->get_latency(i);
@@ -125,21 +158,25 @@ pa_usec_t pa_sink_input_get_latency(struct pa_sink_input *i) {
 }
 
 int pa_sink_input_peek(struct pa_sink_input *i, struct pa_memchunk *chunk) {
-    assert(i && chunk && i->peek && i->drop);
+    int ret = -1;
+    assert(i && chunk && i->ref >= 1);
 
-    if (i->corked)
-        return -1;
-    
-    if (!i->resampler)
-        return i->peek(i, chunk);
+    pa_sink_input_ref(i);
+
+    if (!i->peek || !i->drop || i->state == PA_SINK_INPUT_CORKED)
+        goto finish;
+        
+    if (!i->resampler) {
+        ret = i->peek(i, chunk);
+        goto finish;
+    }
 
     while (!i->resampled_chunk.memblock) {
         struct pa_memchunk tchunk;
         size_t l;
-        int ret;
         
         if ((ret = i->peek(i, &tchunk)) < 0)
-            return ret;
+            goto finish;
 
         assert(tchunk.length);
         
@@ -158,14 +195,27 @@ int pa_sink_input_peek(struct pa_sink_input *i, struct pa_memchunk *chunk) {
     assert(i->resampled_chunk.memblock && i->resampled_chunk.length);
     *chunk = i->resampled_chunk;
     pa_memblock_ref(i->resampled_chunk.memblock);
-    return 0;
+
+    ret = 0;
+
+finish:
+
+    if (ret < 0 && i->playing && i->underrun)
+        i->underrun(i);
+
+    i->playing = ret >= 0;
+    
+    pa_sink_input_unref(i);
+    
+    return ret;
 }
 
 void pa_sink_input_drop(struct pa_sink_input *i, const struct pa_memchunk *chunk, size_t length) {
-    assert(i && length);
+    assert(i && length && i->ref >= 1);
 
     if (!i->resampler) {
-        i->drop(i, chunk, length);
+        if (i->drop)
+            i->drop(i, chunk, length);
         return;
     }
     
@@ -182,7 +232,7 @@ void pa_sink_input_drop(struct pa_sink_input *i, const struct pa_memchunk *chunk
 }
 
 void pa_sink_input_set_volume(struct pa_sink_input *i, pa_volume_t volume) {
-    assert(i && i->sink && i->sink->core);
+    assert(i && i->sink && i->sink->core && i->ref >= 1);
 
     if (i->volume != volume) {
         i->volume = volume;
@@ -192,10 +242,33 @@ void pa_sink_input_set_volume(struct pa_sink_input *i, pa_volume_t volume) {
 
 void pa_sink_input_cork(struct pa_sink_input *i, int b) {
     int n;
-    assert(i);
-    n = i->corked && !b;
-    i->corked = b;
+    assert(i && i->ref >= 1);
+
+    if (i->state == PA_SINK_INPUT_DISCONNECTED)
+        return;
+
+    n = i->state == PA_SINK_INPUT_CORKED && !b;
+    i->state = b ? PA_SINK_INPUT_CORKED : PA_SINK_INPUT_RUNNING;
 
     if (n)
         pa_sink_notify(i->sink);
 }
+
+void pa_sink_input_set_rate(struct pa_sink_input *i, uint32_t rate) {
+    assert(i && i->resampler && i->ref >= 1);
+
+    if (i->sample_spec.rate == rate)
+        return;
+
+    i->sample_spec.rate = rate;
+    pa_resampler_set_input_rate(i->resampler, rate);
+}
+
+void pa_sink_input_set_name(struct pa_sink_input *i, const char *name) {
+    assert(i && i->ref >= 1);
+
+    pa_xfree(i->name);
+    i->name = pa_xstrdup(name);
+
+    pa_subscription_post(i->sink->core, PA_SUBSCRIPTION_EVENT_SINK_INPUT|PA_SUBSCRIPTION_EVENT_CHANGE, i->index);
+}