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bluez5: iso-io: drop RX data when source is not running

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When media-source is not running, we need to drop any RX data so that
there is room in the socket buffer for the latency reporting.
This commit is contained in:
Pauli Virtanen 2024-03-02 00:37:02 +02:00
parent 4f91f0bcb0
commit 9165291c43
2 changed files with 45 additions and 3 deletions
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21
spa/plugins/bluez5/iso-io.c
View file

@ -145,6 +145,15 @@ static int set_timers(struct group *group)
return set_timeout(group, group->next);
}
static void drop_rx(int fd)
{
ssize_t res;
do {
res = recv(fd, NULL, 0, MSG_TRUNC | MSG_DONTWAIT);
} while (res >= 0);
}
static void group_on_timeout(struct spa_source *source)
{
struct group *group = source->data;
@ -166,8 +175,13 @@ static void group_on_timeout(struct spa_source *source)
* desynchronization.
*/
spa_list_for_each(stream, &group->streams, link) {
if (!stream->sink)
if (!stream->sink) {
if (!stream->pull) {
/* Source not running: drop any incoming data */
drop_rx(stream->fd);
}
continue;
}
if (stream->this.need_resync) {
resync = true;
@ -453,9 +467,12 @@ static bool group_is_enabled(struct group *group)
{
struct stream *stream;
spa_list_for_each(stream, &group->streams, link)
spa_list_for_each(stream, &group->streams, link) {
if (!stream->sink)
continue;
if (stream->pull)
return true;
}
return false;
}

27
spa/plugins/bluez5/media-source.c
View file

@ -35,6 +35,7 @@
#include "defs.h"
#include "rtp.h"
#include "media-codecs.h"
#include "iso-io.h"
SPA_LOG_TOPIC_DEFINE_STATIC(log_topic, "spa.bluez5.source.media");
#undef SPA_LOG_TOPIC_DEFAULT
@ -526,6 +527,8 @@ static void media_on_ready_read(struct spa_source *source)
stop:
if (this->source.loop)
spa_loop_remove_source(this->data_loop, &this->source);
if (this->transport && this->transport->iso_io)
spa_bt_iso_io_set_cb(this->transport->iso_io, NULL, NULL);
}
static int setup_matching(struct impl *this)
@ -612,6 +615,21 @@ static void media_on_timeout(struct spa_source *source)
set_timeout(this, this->next_time);
}
static void media_iso_pull(struct spa_bt_iso_io *iso_io)
{
/* TODO: eventually use iso-io here, currently this is used just to indicate to
* iso-io whether this source is running or not. */
}
static int do_start_iso_io(struct spa_loop *loop, bool async, uint32_t seq,
const void *data, size_t size, void *user_data)
{
struct impl *this = user_data;
spa_bt_iso_io_set_cb(this->transport->iso_io, media_iso_pull, this);
return 0;
}
static int transport_start(struct impl *this)
{
int res, val;
@ -669,6 +687,8 @@ static int transport_start(struct impl *this)
port->current_format.info.raw.rate * 80 / 1000);
}
this->sample_count = 0;
this->source.data = this;
this->source.fd = this->fd;
@ -679,7 +699,8 @@ static int transport_start(struct impl *this)
spa_log_error(this->log, "%p: failed to add poll source: %s", this,
spa_strerror(res));
this->sample_count = 0;
if (this->transport->iso_io)
spa_loop_invoke(this->data_loop, do_start_iso_io, 0, NULL, 0, true, this);
this->transport_started = true;
@ -737,6 +758,8 @@ static int do_remove_source(struct spa_loop *loop,
if (this->timer_source.loop)
spa_loop_remove_source(this->data_loop, &this->timer_source);
if (this->transport && this->transport->iso_io)
spa_bt_iso_io_set_cb(this->transport->iso_io, NULL, NULL);
set_timeout(this, 0);
return 0;
@ -757,6 +780,8 @@ static int do_remove_transport_source(struct spa_loop *loop,
if (this->source.loop)
spa_loop_remove_source(this->data_loop, &this->source);
if (this->transport->iso_io)
spa_bt_iso_io_set_cb(this->transport->iso_io, NULL, NULL);
return 0;
}