-/* $Id$ */
-
/***
This file is part of PulseAudio.
- Copyright 2004-2006 Lennart Poettering
+ Copyright 2004-2008 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 <sndfile.h>
#include <pulse/xmalloc.h>
+#include <pulse/util.h>
#include <pulsecore/core-error.h>
#include <pulsecore/sink-input.h>
#include <pulsecore/log.h>
#include <pulsecore/thread-mq.h>
#include <pulsecore/core-util.h>
+#include <pulsecore/sample-util.h>
#include "sound-file-stream.h"
+#define MEMBLOCKQ_MAXLENGTH (16*1024*1024)
+
typedef struct file_stream {
pa_msgobject parent;
pa_core *core;
- SNDFILE *sndfile;
pa_sink_input *sink_input;
- pa_memchunk memchunk;
+
+ SNDFILE *sndfile;
sf_count_t (*readf_function)(SNDFILE *sndfile, void *ptr, sf_count_t frames);
- size_t drop;
+
+ /* We need this memblockq here to easily fulfill rewind requests
+ * (even beyond the file start!) */
+ pa_memblockq *memblockq;
} file_stream;
enum {
#define FILE_STREAM(o) (file_stream_cast(o))
static PA_DEFINE_CHECK_TYPE(file_stream, pa_msgobject);
+/* Called from main context */
static void file_stream_unlink(file_stream *u) {
pa_assert(u);
return;
pa_sink_input_unlink(u->sink_input);
-
pa_sink_input_unref(u->sink_input);
u->sink_input = NULL;
file_stream_unref(u);
}
+/* Called from main context */
static void file_stream_free(pa_object *o) {
file_stream *u = FILE_STREAM(o);
pa_assert(u);
- file_stream_unlink(u);
-
- if (u->memchunk.memblock)
- pa_memblock_unref(u->memchunk.memblock);
+ if (u->memblockq)
+ pa_memblockq_free(u->memblockq);
if (u->sndfile)
sf_close(u->sndfile);
pa_xfree(u);
}
+/* Called from main context */
static int file_stream_process_msg(pa_msgobject *o, int code, void*userdata, int64_t offset, pa_memchunk *chunk) {
file_stream *u = FILE_STREAM(o);
file_stream_assert_ref(u);
return 0;
}
+/* Called from main context */
static void sink_input_kill_cb(pa_sink_input *i) {
+ file_stream *u;
+
pa_sink_input_assert_ref(i);
+ u = FILE_STREAM(i->userdata);
+ file_stream_assert_ref(u);
- file_stream_unlink(FILE_STREAM(i->userdata));
+ file_stream_unlink(u);
}
-static int sink_input_peek_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
+/* Called from IO thread context */
+static void sink_input_state_change_cb(pa_sink_input *i, pa_sink_input_state_t state) {
file_stream *u;
- pa_assert(i);
- pa_assert(chunk);
+ pa_sink_input_assert_ref(i);
u = FILE_STREAM(i->userdata);
file_stream_assert_ref(u);
- if (!u->sndfile)
- return -1;
-
- for (;;) {
+ /* 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);
+}
- if (!u->memchunk.memblock) {
+/* Called from IO thread context */
+static int sink_input_pop_cb(pa_sink_input *i, size_t length, pa_memchunk *chunk) {
+ file_stream *u;
- u->memchunk.memblock = pa_memblock_new(i->sink->core->mempool, length);
- u->memchunk.index = 0;
+ pa_sink_input_assert_ref(i);
+ pa_assert(chunk);
+ u = FILE_STREAM(i->userdata);
+ file_stream_assert_ref(u);
- if (u->readf_function) {
- sf_count_t n;
- void *p;
- size_t fs = pa_frame_size(&i->sample_spec);
+ if (!u->memblockq)
+ return -1;
- p = pa_memblock_acquire(u->memchunk.memblock);
- n = u->readf_function(u->sndfile, p, length/fs);
- pa_memblock_release(u->memchunk.memblock);
+ for (;;) {
+ pa_memchunk tchunk;
+ size_t fs;
+ void *p;
+ sf_count_t n;
+
+ if (pa_memblockq_peek(u->memblockq, chunk) >= 0) {
+ chunk->length = PA_MIN(chunk->length, length);
+ pa_memblockq_drop(u->memblockq, chunk->length);
+ return 0;
+ }
- if (n <= 0)
- n = 0;
+ if (!u->sndfile)
+ break;
- u->memchunk.length = n * fs;
- } else {
- sf_count_t n;
- void *p;
+ tchunk.memblock = pa_memblock_new(i->sink->core->mempool, length);
+ tchunk.index = 0;
- p = pa_memblock_acquire(u->memchunk.memblock);
- n = sf_read_raw(u->sndfile, p, length);
- pa_memblock_release(u->memchunk.memblock);
+ p = pa_memblock_acquire(tchunk.memblock);
- if (n <= 0)
- n = 0;
+ if (u->readf_function) {
+ fs = pa_frame_size(&i->sample_spec);
+ n = u->readf_function(u->sndfile, p, (sf_count_t) (length/fs));
+ } else {
+ fs = 1;
+ n = sf_read_raw(u->sndfile, p, (sf_count_t) length);
+ }
- u->memchunk.length = n;
- }
+ pa_memblock_release(tchunk.memblock);
- if (u->memchunk.length <= 0) {
+ if (n <= 0) {
+ pa_memblock_unref(tchunk.memblock);
- pa_memblock_unref(u->memchunk.memblock);
- pa_memchunk_reset(&u->memchunk);
+ sf_close(u->sndfile);
+ u->sndfile = NULL;
+ break;
+ }
- pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(u), FILE_STREAM_MESSAGE_UNLINK, NULL, 0, NULL, NULL);
+ tchunk.length = (size_t) n * fs;
- sf_close(u->sndfile);
- u->sndfile = NULL;
+ pa_memblockq_push(u->memblockq, &tchunk);
+ pa_memblock_unref(tchunk.memblock);
+ }
- return -1;
- }
- }
+ if (pa_sink_input_safe_to_remove(i)) {
+ pa_memblockq_free(u->memblockq);
+ u->memblockq = NULL;
- pa_assert(u->memchunk.memblock);
- pa_assert(u->memchunk.length > 0);
+ pa_asyncmsgq_post(pa_thread_mq_get()->outq, PA_MSGOBJECT(u), FILE_STREAM_MESSAGE_UNLINK, NULL, 0, NULL, NULL);
+ }
- if (u->drop < u->memchunk.length) {
- u->memchunk.index += u->drop;
- u->memchunk.length -= u->drop;
- u->drop = 0;
- break;
- }
+ return -1;
+ }
- u->drop -= u->memchunk.length;
- pa_memblock_unref(u->memchunk.memblock);
- pa_memchunk_reset(&u->memchunk);
- }
+static void sink_input_process_rewind_cb(pa_sink_input *i, size_t nbytes) {
+ file_stream *u;
- *chunk = u->memchunk;
- pa_memblock_ref(chunk->memblock);
+ pa_sink_input_assert_ref(i);
+ u = FILE_STREAM(i->userdata);
+ file_stream_assert_ref(u);
- pa_assert(chunk->length > 0);
- pa_assert(u->drop <= 0);
+ if (!u->memblockq)
+ return;
- return 0;
+ pa_memblockq_rewind(u->memblockq, nbytes);
}
-static void sink_input_drop_cb(pa_sink_input *i, size_t length) {
+static void sink_input_update_max_rewind_cb(pa_sink_input *i, size_t nbytes) {
file_stream *u;
- pa_assert(i);
- pa_assert(length > 0);
+ pa_sink_input_assert_ref(i);
u = FILE_STREAM(i->userdata);
file_stream_assert_ref(u);
- if (u->memchunk.memblock) {
-
- if (length < u->memchunk.length) {
- u->memchunk.index += length;
- u->memchunk.length -= length;
- return;
- }
-
- length -= u->memchunk.length;
- pa_memblock_unref(u->memchunk.memblock);
- pa_memchunk_reset(&u->memchunk);
- }
+ if (!u->memblockq)
+ return;
- u->drop += length;
+ pa_memblockq_set_maxrewind(u->memblockq, nbytes);
}
int pa_play_file(
u->parent.process_msg = file_stream_process_msg;
u->core = sink->core;
u->sink_input = NULL;
- pa_memchunk_reset(&u->memchunk);
u->sndfile = NULL;
u->readf_function = NULL;
- u->drop = 0;
+ u->memblockq = NULL;
memset(&sfinfo, 0, sizeof(sfinfo));
break;
}
- ss.rate = sfinfo.samplerate;
- ss.channels = sfinfo.channels;
+ ss.rate = (uint32_t) sfinfo.samplerate;
+ ss.channels = (uint8_t) sfinfo.channels;
if (!pa_sample_spec_valid(&ss)) {
pa_log("Unsupported sample format in file %s", fname);
pa_sink_input_new_data_init(&data);
data.sink = sink;
data.driver = __FILE__;
- data.name = fname;
pa_sink_input_new_data_set_sample_spec(&data, &ss);
- pa_sink_input_new_data_set_volume(&data, volume);
+ pa_sink_input_new_data_set_virtual_volume(&data, volume);
+ pa_proplist_sets(data.proplist, PA_PROP_MEDIA_NAME, pa_path_get_filename(fname));
+ pa_proplist_sets(data.proplist, PA_PROP_MEDIA_FILENAME, fname);
- if (!(u->sink_input = pa_sink_input_new(sink->core, &data, 0)))
+ 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->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;
+ u->memblockq = pa_memblockq_new(0, MEMBLOCKQ_MAXLENGTH, 0, pa_frame_size(&ss), 1, 1, 0, NULL);
+
pa_sink_input_put(u->sink_input);
/* The reference to u is dangling here, because we want to keep