]> code.delx.au - pulseaudio/blobdiff - src/pulsecore/play-memblockq.c
move flat volume logic into the core. while doing so add n_volume_steps field to...
[pulseaudio] / src / pulsecore / play-memblockq.c
index 5652ac2bedcb319cd38d37c62ae12c724ed985f0..eac21de5995acbebd1e9ad4f3bbca97c910e395e 100644 (file)
@@ -1,9 +1,7 @@
-/* $Id$ */
-
 /***
   This file is part of PulseAudio.
 
-  Copyright 2006 Lennart Poettering
+  Copyright 2006-2008 Lennart Poettering
 
   PulseAudio is free software; you can redistribute it and/or modify
   it under the terms of the GNU Lesser General Public License as published
 #include <string.h>
 
 #include <pulse/xmalloc.h>
+#include <pulse/gccmacro.h>
 
 #include <pulsecore/sink-input.h>
-#include <pulsecore/gccmacro.h>
 #include <pulsecore/thread-mq.h>
+#include <pulsecore/sample-util.h>
 
 #include "play-memblockq.h"
 
@@ -59,10 +58,9 @@ static void memblockq_stream_unlink(memblockq_stream *u) {
         return;
 
     pa_sink_input_unlink(u->sink_input);
-    
     pa_sink_input_unref(u->sink_input);
     u->sink_input = NULL;
-    
+
     memblockq_stream_unref(u);
 }
 
@@ -70,8 +68,6 @@ static void memblockq_stream_free(pa_object *o) {
     memblockq_stream *u = MEMBLOCKQ_STREAM(o);
     pa_assert(u);
 
-    memblockq_stream_unlink(u);
-    
     if (u->memblockq)
         pa_memblockq_free(u->memblockq);
 
@@ -81,7 +77,7 @@ static void memblockq_stream_free(pa_object *o) {
 static int memblockq_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
     memblockq_stream *u = MEMBLOCKQ_STREAM(o);
     memblockq_stream_assert_ref(u);
-    
+
     switch (code) {
         case MEMBLOCKQ_STREAM_MESSAGE_UNLINK:
             memblockq_stream_unlink(u);
@@ -92,15 +88,34 @@ static int memblockq_stream_process_msg(pa_msgobject *o, int code, void*userdata
 }
 
 static void sink_input_kill_cb(pa_sink_input *i) {
+    memblockq_stream *u;
+
+    pa_sink_input_assert_ref(i);
+    u = MEMBLOCKQ_STREAM(i->userdata);
+    memblockq_stream_assert_ref(u);
+
+    memblockq_stream_unlink(u);
+}
+
+/* Called from IO thread context */
+static void sink_input_state_change_cb(pa_sink_input *i, pa_sink_input_state_t state) {
+    memblockq_stream *u;
+
     pa_sink_input_assert_ref(i);
+    u = MEMBLOCKQ_STREAM(i->userdata);
+    memblockq_stream_assert_ref(u);
 
-    memblockq_stream_unlink(MEMBLOCKQ_STREAM(i->userdata));
+    /* If we are added for the first time, ask for a rewinding so that
+     * we are heard right-away. */
+    if (PA_SINK_INPUT_IS_LINKED(state) &&
+        i->thread_info.state == PA_SINK_INPUT_INIT)
+        pa_sink_input_request_rewind(i, 0, FALSE, TRUE, TRUE);
 }
 
-static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
+static int sink_input_pop_cb(pa_sink_input *i, size_t nbytes, pa_memchunk *chunk) {
     memblockq_stream *u;
 
-    pa_assert(i);
+    pa_sink_input_assert_ref(i);
     pa_assert(chunk);
     u = MEMBLOCKQ_STREAM(i->userdata);
     memblockq_stream_assert_ref(u);
@@ -109,36 +124,57 @@ static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chun
         return -1;
 
     if (pa_memblockq_peek(u->memblockq, chunk) < 0) {
-        pa_memblockq_free(u->memblockq);
-        u->memblockq = NULL;
-        pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(u), MEMBLOCKQ_STREAM_MESSAGE_UNLINK, NULL, 0, NULL, NULL);
+
+        if (pa_sink_input_safe_to_remove(i)) {
+
+            pa_memblockq_free(u->memblockq);
+            u->memblockq = NULL;
+
+            pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(u), MEMBLOCKQ_STREAM_MESSAGE_UNLINK, NULL, 0, NULL, NULL);
+        }
+
         return -1;
     }
 
+    chunk->length = PA_MIN(chunk->length, nbytes);
+    pa_memblockq_drop(u->memblockq, chunk->length);
+
     return 0;
 }
 
-static void sink_input_drop_cb(pa_sink_input *i, size_t length) {
+static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
     memblockq_stream *u;
 
-    pa_assert(i);
-    pa_assert(length > 0);
+    pa_sink_input_assert_ref(i);
     u = MEMBLOCKQ_STREAM(i->userdata);
     memblockq_stream_assert_ref(u);
 
     if (!u->memblockq)
         return;
-    
-    pa_memblockq_drop(u->memblockq, length);
+
+    pa_memblockq_rewind(u->memblockq, nbytes);
+}
+
+static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) {
+    memblockq_stream *u;
+
+    pa_sink_input_assert_ref(i);
+    u = MEMBLOCKQ_STREAM(i->userdata);
+    memblockq_stream_assert_ref(u);
+
+    if (!u->memblockq)
+        return;
+
+    pa_memblockq_set_maxrewind(u->memblockq, nbytes);
 }
 
 pa_sink_input* pa_memblockq_sink_input_new(
         pa_sink *sink,
-        const char *name,
         const pa_sample_spec *ss,
         const pa_channel_map *map,
         pa_memblockq *q,
-        pa_cvolume *volume) {
+        pa_cvolume *volume,
+        pa_proplist *p) {
 
     memblockq_stream *u = NULL;
     pa_sink_input_new_data data;
@@ -149,48 +185,43 @@ pa_sink_input* pa_memblockq_sink_input_new(
     /* We allow creating this stream with no q set, so that it can be
      * filled in later */
 
-    if (q && pa_memblockq_get_length(q) <= 0) {
-        pa_memblockq_free(q);
-        return NULL;
-    }
-
-    if (volume && pa_cvolume_is_muted(volume)) {
-        pa_memblockq_free(q);
-        return NULL;
-    }
-
     u = pa_msgobject_new(memblockq_stream);
     u->parent.parent.free = memblockq_stream_free;
     u->parent.process_msg = memblockq_stream_process_msg;
     u->core = sink->core;
     u->sink_input = NULL;
-    u->memblockq = q;
+    u->memblockq = NULL;
 
     pa_sink_input_new_data_init(&data);
     data.sink = sink;
-    data.name = name;
     data.driver = __FILE__;
     pa_sink_input_new_data_set_sample_spec(&data, ss);
     pa_sink_input_new_data_set_channel_map(&data, map);
-    pa_sink_input_new_data_set_volume(&data, volume);
+    pa_sink_input_new_data_set_virtual_volume(&data, volume);
+    pa_proplist_update(data.proplist, PA_UPDATE_REPLACE, p);
+
+    u->sink_input = pa_sink_input_new(sink->core, &data, 0);
+    pa_sink_input_new_data_done(&data);
 
-    if (!(u->sink_input = pa_sink_input_new(sink->core, &data, 0)))
+    if (!u->sink_input)
         goto fail;
-    
-    u->sink_input->peek = sink_input_peek_cb;
-    u->sink_input->drop = sink_input_drop_cb;
+
+    u->sink_input->pop = sink_input_pop_cb;
+    u->sink_input->process_rewind = sink_input_process_rewind_cb;
+    u->sink_input->update_max_rewind = sink_input_update_max_rewind_cb;
     u->sink_input->kill = sink_input_kill_cb;
+    u->sink_input->state_change = sink_input_state_change_cb;
     u->sink_input->userdata = u;
 
     if (q)
-        pa_memblockq_prebuf_disable(q);
-    
+        pa_memblockq_sink_input_set_queue(u->sink_input, q);
+
     /* The reference to u is dangling here, because we want
      * to keep this stream around until it is fully played. */
 
     /* This sink input is not "put" yet, i.e. pa_sink_input_put() has
      * not been called! */
-    
+
     return pa_sink_input_ref(u->sink_input);
 
 fail:
@@ -202,11 +233,12 @@ fail:
 
 int pa_play_memblockq(
         pa_sink *sink,
-        const char *name,
         const pa_sample_spec *ss,
         const pa_channel_map *map,
         pa_memblockq *q,
-        pa_cvolume *volume) {
+        pa_cvolume *volume,
+        pa_proplist *p,
+        uint32_t *sink_input_index) {
 
     pa_sink_input *i;
 
@@ -214,10 +246,14 @@ int pa_play_memblockq(
     pa_assert(ss);
     pa_assert(q);
 
-    if (!(i = pa_memblockq_sink_input_new(sink, name, ss, map, q, volume)))
+    if (!(i = pa_memblockq_sink_input_new(sink, ss, map, q, volume, p)))
         return -1;
 
     pa_sink_input_put(i);
+
+    if (sink_input_index)
+        *sink_input_index = i->index;
+
     pa_sink_input_unref(i);
 
     return 0;
@@ -225,12 +261,17 @@ int pa_play_memblockq(
 
 void pa_memblockq_sink_input_set_queue(pa_sink_input *i, pa_memblockq *q) {
     memblockq_stream *u;
-    
+
     pa_sink_input_assert_ref(i);
     u = MEMBLOCKQ_STREAM(i->userdata);
     memblockq_stream_assert_ref(u);
 
     if (u->memblockq)
         pa_memblockq_free(u->memblockq);
-    u->memblockq = q;
+
+    if ((u->memblockq = q)) {
+        pa_memblockq_set_prebuf(q, 0);
+        pa_memblockq_set_silence(q, NULL);
+        pa_memblockq_willneed(q);
+    }
 }