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alsa: improve ringbuffer params

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Always reuse the ringbuffer after we consumed some of it. This is
the trigger for upstream to write some more in the buffer.
This commit is contained in:
Wim Taymans 2017-10-27 17:54:34 +02:00
parent 84d422bc46
commit 91ba492712
2 changed files with 7 additions and 4 deletions
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4
spa/plugins/alsa/alsa-utils.c
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@ -369,10 +369,12 @@ pull_frames(struct state *state,
n_bytes = SPA_MIN(avail, to_write * state->frame_size);
n_frames = SPA_MIN(to_write, n_bytes / state->frame_size);
spa_ringbuffer_read_data(ringbuffer, d[0].data, index & ringbuffer->mask, dst, n_bytes);
spa_ringbuffer_read_data(ringbuffer, d[0].data, index % ringbuffer->mask, dst, n_bytes);
spa_ringbuffer_read_update(ringbuffer, index + n_bytes);
reuse = avail == n_bytes;
spa_log_trace(state->log, "%d %d %ld %zd", avail, index, to_write, n_bytes);
reuse = true;
} else {
offs = SPA_MIN(d[0].chunk->offset + state->ready_offset, d[0].maxsize);
size = SPA_MIN(d[0].chunk->size + offs, d[0].maxsize) - offs;