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[client] audio/pw: properly manage the stream state

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This commit is contained in:
Geoffrey McRae 2021-12-25 09:40:41 +11:00
parent 11ef94c134
commit f403033ab1
1 changed files with 22 additions and 6 deletions
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28
client/audiodevs/PipeWire/pipewire.c
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@ -35,6 +35,7 @@ struct PipeWire
int stride;
RingBuffer buffer;
bool active;
};
static struct PipeWire pw = {0};
@ -133,7 +134,7 @@ static void pipewire_free(void)
pw_deinit();
}
static void pipewire_stop(void)
static void pipewire_stop_stream(void)
{
if (!pw.stream)
return;
@ -156,7 +157,7 @@ static void pipewire_start(int channels, int sampleRate)
.process = pipewire_on_process
};
pipewire_stop();
pipewire_stop_stream();
pw.channels = channels;
pw.stride = sizeof(uint16_t) * channels;
@ -197,7 +198,8 @@ static void pipewire_start(int channels, int sampleRate)
PW_ID_ANY,
PW_STREAM_FLAG_AUTOCONNECT |
PW_STREAM_FLAG_MAP_BUFFERS |
PW_STREAM_FLAG_RT_PROCESS,
PW_STREAM_FLAG_RT_PROCESS |
PW_STREAM_FLAG_INACTIVE,
params, 1);
pw_thread_loop_unlock(pw.thread);
@ -210,11 +212,25 @@ static void pipewire_play(uint8_t * data, int size)
for(int i = 0; i < size; i += pw.stride)
ringbuffer_push(pw.buffer, data + i);
if (!pw.active)
{
pw_thread_loop_lock(pw.thread);
pw_stream_set_active(pw.stream, true);
pw.active = true;
pw_thread_loop_unlock(pw.thread);
}
}
static void pipewire_stop_nop(void)
static void pipewire_stop(void)
{
// we ignore the stop message to avoid messing up any audio graph
if (!pw.active)
return;
pw_thread_loop_lock(pw.thread);
pw_stream_set_active(pw.stream, false);
pw.active = false;
pw_thread_loop_unlock(pw.thread);
}
struct LG_AudioDevOps LGAD_PipeWire =
@ -224,5 +240,5 @@ struct LG_AudioDevOps LGAD_PipeWire =
.free = pipewire_free,
.start = pipewire_start,
.play = pipewire_play,
.stop = pipewire_stop_nop
.stop = pipewire_stop
};