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io: add support for segment

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Move fields from the io_position to io_segment. The segment contains
the mapping between raw clock time and stream time in various
formats. We keep an array of pending segments available in the
io_position field so clients can anticipate changes.

Make looping a flag in the segment instead of a state.

Prepare for segment masters. These will be registered clients that
are responsible for updating parts of the extended segment info.

Add namespace to some defines.
This commit is contained in:
Wim Taymans 2019-08-27 21:36:15 +02:00
parent b356c83d32
commit 7c865f5db0
7 changed files with 137 additions and 80 deletions
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24
spa/plugins/jack/jack-sink.c
View file

@ -333,19 +333,25 @@ static void client_process(void *data)
if (this->position) {
jack_position_t *jp = &this->client->pos;
struct spa_io_position *p = this->position;
struct spa_io_segment *s;
p->rate = 1.0;
p->valid = 0;
p->n_segments = 1;
s = &p->segments[0];
s->flags = SPA_IO_SEGMENT_VALID_POSITION;
s->position = jp->frame;
s->rate = 1.0;
s->valid = 0;
if (jp->valid & JackPositionBBT) {
p->valid |= SPA_IO_POSITION_VALID_BAR;
s->valid |= SPA_IO_SEGMENT_VALID_BAR;
if (jp->valid & JackBBTFrameOffset)
p->bar.offset = jp->bbt_offset;
s->bar.offset = jp->bbt_offset;
else
p->bar.offset = 0;
p->bar.signature_num = jp->beats_per_bar;
p->bar.signature_denom = jp->beat_type;
p->bar.bpm = jp->beats_per_minute;
p->bar.beat = jp->bar * jp->beats_per_bar + jp->beat;
s->bar.offset = 0;
s->bar.signature_num = jp->beats_per_bar;
s->bar.signature_denom = jp->beat_type;
s->bar.bpm = jp->beats_per_minute;
s->bar.beat = jp->bar * jp->beats_per_bar + jp->beat;
}
}
spa_node_call_ready(&this->callbacks, SPA_STATUS_NEED_BUFFER);