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stream: Align with pw_filter

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Remove some of the unused states in pw_stream. The app can know the
state by following the format and buffer events.

Make it possible to be notified of io are updates. This should make it
possible to follow the transport etc.

Make it possible to be notified of any param changes.

Rename finish_format to update_params because that is what it does.
Make this work in the same was as the filter: updating the params
removes all old params of the types and installs the new ones.

Don't get the Props and PropInfo from the node proxy, instead get them
directly from the adapter that we have locally. Update the controls
directly on the adapter instead of going to the server first.
This commit is contained in:
Wim Taymans 2019-11-21 16:14:50 +01:00
parent be53554def
commit 738603fd04
11 changed files with 232 additions and 268 deletions
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9
pipewire-alsa/alsa-plugins/pcm_pipewire.c
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@ -310,7 +310,7 @@ snd_pcm_pipewire_process_record(snd_pcm_pipewire_t *pw, struct pw_buffer *b)
return 0;
}
static void on_stream_format_changed(void *data, const struct spa_pod *format)
static void on_stream_param_changed(void *data, uint32_t id, const struct spa_pod *param)
{
snd_pcm_pipewire_t *pw = data;
snd_pcm_ioplug_t *io = &pw->io;
@ -322,6 +322,9 @@ static void on_stream_format_changed(void *data, const struct spa_pod *format)
uint32_t buffers;
uint32_t size;
if (param == NULL || id != SPA_PARAM_Format)
return;
io->period_size = pw->min_avail;
buffers = SPA_CLAMP(io->buffer_size / io->period_size, MIN_BUFFERS, MAX_BUFFERS);
size = io->period_size * stride;
@ -337,7 +340,7 @@ static void on_stream_format_changed(void *data, const struct spa_pod *format)
SPA_PARAM_BUFFERS_stride, SPA_POD_Int(stride),
SPA_PARAM_BUFFERS_align, SPA_POD_Int(16));
pw_stream_finish_format(pw->stream, 0, params, n_params);
pw_stream_update_params(pw->stream, params, n_params);
}
static void on_stream_process(void *data)
@ -360,7 +363,7 @@ static void on_stream_process(void *data)
static const struct pw_stream_events stream_events = {
PW_VERSION_STREAM_EVENTS,
.format_changed = on_stream_format_changed,
.param_changed = on_stream_param_changed,
.process = on_stream_process,
};