-/* $Id$ */
-
/***
This file is part of PulseAudio.
-
+
+ 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
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
-
+
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
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 Lesser General Public License
along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
#endif
#include <stdlib.h>
-#include <assert.h>
#include <stdio.h>
#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"
-static void sink_input_kill(pa_sink_input *i) {
- pa_memblockq *q;
- assert(i);
- assert(i->userdata);
+typedef struct memblockq_stream {
+ pa_msgobject parent;
+ pa_core *core;
+ pa_sink_input *sink_input;
+ pa_memblockq *memblockq;
+} memblockq_stream;
- q = i->userdata;
+enum {
+ MEMBLOCKQ_STREAM_MESSAGE_UNLINK,
+};
- pa_sink_input_disconnect(i);
- pa_sink_input_unref(i);
+PA_DECLARE_CLASS(memblockq_stream);
+#define MEMBLOCKQ_STREAM(o) (memblockq_stream_cast(o))
+static PA_DEFINE_CHECK_TYPE(memblockq_stream, pa_msgobject);
+
+static void memblockq_stream_unlink(memblockq_stream *u) {
+ pa_assert(u);
+
+ if (!u->sink_input)
+ return;
+
+ pa_sink_input_unlink(u->sink_input);
+ pa_sink_input_unref(u->sink_input);
+ u->sink_input = NULL;
+
+ memblockq_stream_unref(u);
+}
+
+static void memblockq_stream_free(pa_object *o) {
+ memblockq_stream *u = MEMBLOCKQ_STREAM(o);
+ pa_assert(u);
+
+ if (u->memblockq)
+ pa_memblockq_free(u->memblockq);
+
+ pa_xfree(u);
+}
+
+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);
+ break;
+ }
- pa_memblockq_free(q);
+ return 0;
}
-static int sink_input_peek(pa_sink_input *i, pa_memchunk *chunk) {
- pa_memblockq *q;
- assert(i);
- assert(chunk);
- assert(i->userdata);
+static void sink_input_kill_cb(pa_sink_input *i) {
+ memblockq_stream *u;
- q = i->userdata;
+ pa_sink_input_assert_ref(i);
+ u = MEMBLOCKQ_STREAM(i->userdata);
+ memblockq_stream_assert_ref(u);
- return pa_memblockq_peek(q, chunk);
+ memblockq_stream_unlink(u);
}
-static void si_kill(PA_GCC_UNUSED pa_mainloop_api *m, void *i) {
- sink_input_kill(i);
+/* 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);
+
+ /* 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 void sink_input_drop(pa_sink_input *i, const pa_memchunk*chunk, size_t length) {
- pa_memblockq *q;
-
- assert(i);
- assert(length > 0);
- assert( i->userdata);
-
- q = i->userdata;
+static int sink_input_pop_cb(pa_sink_input *i, size_t nbytes, pa_memchunk *chunk) {
+ memblockq_stream *u;
+
+ pa_sink_input_assert_ref(i);
+ pa_assert(chunk);
+ u = MEMBLOCKQ_STREAM(i->userdata);
+ memblockq_stream_assert_ref(u);
+
+ if (!u->memblockq)
+ return -1;
+
+ if (pa_memblockq_peek(u->memblockq, chunk) < 0) {
+
+ if (pa_sink_input_safe_to_remove(i)) {
+
+ pa_memblockq_free(u->memblockq);
+ u->memblockq = NULL;
- pa_memblockq_drop(q, chunk, length);
+ pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(u), MEMBLOCKQ_STREAM_MESSAGE_UNLINK, NULL, 0, NULL, NULL);
+ }
- if (pa_memblockq_get_length(q) <= 0)
- pa_mainloop_api_once(i->sink->core->mainloop, si_kill, i);
+ return -1;
+ }
+
+ chunk->length = PA_MIN(chunk->length, nbytes);
+ pa_memblockq_drop(u->memblockq, chunk->length);
+
+ return 0;
+}
+
+static void sink_input_process_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_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 pa_sample_spec *ss,
+ const pa_channel_map *map,
+ pa_memblockq *q,
+ pa_cvolume *volume,
+ pa_proplist *p) {
+
+ memblockq_stream *u = NULL;
+ pa_sink_input_new_data data;
+
+ pa_assert(sink);
+ pa_assert(ss);
+
+ /* We allow creating this stream with no q set, so that it can be
+ * filled in later */
+
+ 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 = NULL;
+
+ pa_sink_input_new_data_init(&data);
+ data.sink = sink;
+ 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_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)
+ goto fail;
+
+ 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_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:
+ if (u)
+ memblockq_stream_unref(u);
+
+ return NULL;
}
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 *cvolume) {
-
- pa_sink_input *si;
-
- assert(sink);
- assert(ss);
- assert(q);
-
- if (pa_memblockq_get_length(q) <= 0)
- return 0;
-
- if (cvolume && pa_cvolume_is_muted(cvolume))
- return 0;
-
- if (!(si = pa_sink_input_new(sink, name, __FILE__, ss, map, cvolume, 0, PA_RESAMPLER_INVALID)))
+ pa_sink *sink,
+ const pa_sample_spec *ss,
+ const pa_channel_map *map,
+ pa_memblockq *q,
+ pa_cvolume *volume,
+ pa_proplist *p,
+ uint32_t *sink_input_index) {
+
+ pa_sink_input *i;
+
+ pa_assert(sink);
+ pa_assert(ss);
+ pa_assert(q);
+
+ if (!(i = pa_memblockq_sink_input_new(sink, ss, map, q, volume, p)))
return -1;
- si->peek = sink_input_peek;
- si->drop = sink_input_drop;
- si->kill = sink_input_kill;
-
- si->userdata = q;
+ pa_sink_input_put(i);
+
+ if (sink_input_index)
+ *sink_input_index = i->index;
+
+ pa_sink_input_unref(i);
- pa_sink_notify(sink);
-
return 0;
}
+
+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);
+
+ if ((u->memblockq = q)) {
+ pa_memblockq_set_prebuf(q, 0);
+ pa_memblockq_set_silence(q, NULL);
+ pa_memblockq_willneed(q);
+ }
+}