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node: Add id to set_io

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Make it possible to configure multiple io areas on a port by giving
an id to set_io.
Add some types to enumerate the supported ids
Make an area to exchange buffers and one to specify pull ranges.
The idea is to make more area types for controlable properties.
Implement enumeration of IO areas in volume.
This commit is contained in:
Wim Taymans 2017-11-21 19:34:37 +01:00
parent 4288a634f4
commit 8efea3e1ea
40 changed files with 583 additions and 208 deletions
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12
spa/plugins/alsa/alsa-utils.c
View file

@ -334,15 +334,17 @@ static inline void calc_timeout(size_t target, size_t current,
static inline void try_pull(struct state *state, snd_pcm_uframes_t frames,
snd_pcm_uframes_t written, bool do_pull)
{
struct spa_port_io *io = state->io;
struct spa_io_buffers *io = state->io;
if (spa_list_is_empty(&state->ready) && do_pull) {
spa_log_trace(state->log, "alsa-util %p: %d %lu", state, io->status,
state->filled + written);
io->status = SPA_STATUS_NEED_BUFFER;
io->range.offset = state->sample_count * state->frame_size;
io->range.min_size = state->threshold * state->frame_size;
io->range.max_size = frames * state->frame_size;
if (state->range) {
state->range->offset = state->sample_count * state->frame_size;
state->range->min_size = state->threshold * state->frame_size;
state->range->max_size = frames * state->frame_size;
}
state->callbacks->need_input(state->callbacks_data);
}
}
@ -428,7 +430,7 @@ push_frames(struct state *state,
snd_pcm_uframes_t frames)
{
snd_pcm_uframes_t total_frames = 0;
struct spa_port_io *io = state->io;
struct spa_io_buffers *io = state->io;
if (spa_list_is_empty(&state->free)) {
spa_log_trace(state->log, "no more buffers");