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pulse-server: split out sample, sample-play

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Part of !776.
This commit is contained in:
Barnabás Pőcze 2021-06-18 22:23:53 +02:00
parent bc4370e195
commit bee97b09e2
6 changed files with 369 additions and 223 deletions
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225
src/modules/module-protocol-pulse/sample.c
View file

@ -22,215 +22,28 @@
* DEALINGS IN THE SOFTWARE.
*/
struct sample {
int ref;
uint32_t index;
struct impl *impl;
const char *name;
struct sample_spec ss;
struct channel_map map;
struct pw_properties *props;
uint32_t length;
uint8_t *buffer;
};
#include <stdlib.h>
struct sample_play_events {
#define VERSION_SAMPLE_PLAY_EVENTS 0
uint32_t version;
#include <pipewire/log.h>
#include <pipewire/map.h>
#include <pipewire/properties.h>
void (*ready) (void *data, uint32_t id);
#include "internal.h"
#include "sample.h"
void (*done) (void *data, int err);
};
#define sample_play_emit_ready(p,i) spa_hook_list_call(&p->hooks, struct sample_play_events, ready, 0, i)
#define sample_play_emit_done(p,r) spa_hook_list_call(&p->hooks, struct sample_play_events, done, 0, r)
struct sample_play {
struct spa_list link;
struct sample *sample;
struct pw_stream *stream;
struct spa_io_rate_match *rate_match;
uint32_t index;
struct spa_hook listener;
struct pw_context *context;
struct pw_loop *main_loop;
uint32_t offset;
uint32_t stride;
struct spa_hook_list hooks;
void *user_data;
};
static void sample_free(struct sample *sample);
static void sample_play_stream_state_changed(void *data, enum pw_stream_state old,
enum pw_stream_state state, const char *error)
void sample_free(struct sample *sample)
{
struct sample_play *p = data;
struct impl * const impl = sample->impl;
switch (state) {
case PW_STREAM_STATE_UNCONNECTED:
case PW_STREAM_STATE_ERROR:
sample_play_emit_done(p, -EIO);
break;
case PW_STREAM_STATE_PAUSED:
p->index = pw_stream_get_node_id(p->stream);
sample_play_emit_ready(p, p->index);
break;
default:
break;
}
}
static void sample_play_stream_io_changed(void *data, uint32_t id, void *area, uint32_t size)
{
struct sample_play *p = data;
switch (id) {
case SPA_IO_RateMatch:
p->rate_match = area;
break;
}
}
static void sample_play_stream_destroy(void *data)
{
struct sample_play *p = data;
pw_log_info("destroy %s", p->sample->name);
spa_hook_remove(&p->listener);
p->stream = NULL;
if (--p->sample->ref == 0)
sample_free(p->sample);
p->sample = NULL;
}
static void sample_play_stream_process(void *data)
{
struct sample_play *p = data;
struct sample *s = p->sample;
struct pw_buffer *b;
struct spa_buffer *buf;
uint32_t size;
uint8_t *d;
if (p->offset >= s->length) {
pw_stream_flush(p->stream, true);
return;
}
size = s->length - p->offset;
if ((b = pw_stream_dequeue_buffer(p->stream)) == NULL) {
pw_log_warn("out of buffers: %m");
return;
}
buf = b->buffer;
if ((d = buf->datas[0].data) == NULL)
return;
size = SPA_MIN(size, buf->datas[0].maxsize);
if (p->rate_match)
size = SPA_MIN(size, p->rate_match->size * p->stride);
memcpy(d, p->sample->buffer + p->offset, size);
p->offset += size;
buf->datas[0].chunk->offset = 0;
buf->datas[0].chunk->stride = p->stride;
buf->datas[0].chunk->size = size;
pw_stream_queue_buffer(p->stream, b);
}
static void sample_play_stream_drained(void *data)
{
struct sample_play *p = data;
sample_play_emit_done(p, 0);
}
struct pw_stream_events sample_play_stream_events = {
PW_VERSION_STREAM_EVENTS,
.state_changed = sample_play_stream_state_changed,
.io_changed = sample_play_stream_io_changed,
.destroy = sample_play_stream_destroy,
.process = sample_play_stream_process,
.drained = sample_play_stream_drained,
};
static struct sample_play *sample_play_new(struct pw_core *core,
struct sample *sample, struct pw_properties *props,
size_t user_data_size)
{
struct sample_play *p;
uint8_t buffer[1024];
struct spa_pod_builder b = SPA_POD_BUILDER_INIT(buffer, sizeof(buffer));
const struct spa_pod *params[1];
uint32_t n_params = 0;
int res;
p = calloc(1, sizeof(struct sample_play) + user_data_size);
if (p == NULL) {
res = -errno;
goto error_free;
}
p->context = pw_core_get_context(core);
p->main_loop = pw_context_get_main_loop(p->context);
spa_hook_list_init(&p->hooks);
p->user_data = SPA_PTROFF(p, sizeof(struct sample_play), void);
pw_properties_update(props, &sample->props->dict);
p->stream = pw_stream_new(core, sample->name, props);
props = NULL;
if (p->stream == NULL) {
res = -errno;
goto error_free;
}
p->sample = sample;
p->stride = sample_spec_frame_size(&sample->ss);
sample->ref++;
pw_stream_add_listener(p->stream,
&p->listener,
&sample_play_stream_events, p);
params[n_params++] = format_build_param(&b, SPA_PARAM_EnumFormat,
&sample->ss, &sample->map);
res = pw_stream_connect(p->stream,
PW_DIRECTION_OUTPUT,
PW_ID_ANY,
PW_STREAM_FLAG_AUTOCONNECT |
PW_STREAM_FLAG_MAP_BUFFERS |
PW_STREAM_FLAG_RT_PROCESS,
params, n_params);
if (res < 0)
goto error_cleanup;
return p;
error_cleanup:
pw_stream_destroy(p->stream);
error_free:
pw_properties_free(props);
free(p);
errno = -res;
return NULL;
}
static void sample_play_add_listener(struct sample_play *p,
struct spa_hook *listener,
const struct sample_play_events *events, void *data)
{
spa_hook_list_append(&p->hooks, listener, events, data);
}
static void sample_play_destroy(struct sample_play *p)
{
if (p->stream)
pw_stream_destroy(p->stream);
free(p);
pw_log_info("free sample id:%u name:%s", sample->index, sample->name);
impl->stat.sample_cache -= sample->length;
if (sample->index != SPA_ID_INVALID)
pw_map_remove(&impl->samples, sample->index);
pw_properties_free(sample->props);
free(sample->buffer);
free(sample);
}