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alsa: cleanups

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Use a periodic timer to catch underruns
Small cleanups
This commit is contained in:
Wim Taymans 2018-05-11 09:56:46 +02:00
parent 97473c8e8b
commit bd3b7e8ee4
8 changed files with 27 additions and 24 deletions
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7
spa/plugins/alsa/alsa-sink.c
View file

@ -491,10 +491,10 @@ impl_node_port_use_buffers(struct spa_node *node,
struct spa_data *d = buffers[i]->datas;
uint32_t type;
b->outbuf = buffers[i];
b->buf = buffers[i];
b->flags = BUFFER_FLAG_OUT;
b->h = spa_buffer_find_meta(b->outbuf, this->type.meta.Header);
b->h = spa_buffer_find_meta(b->buf, this->type.meta.Header);
type = d[0].type;
if ((type == this->type.data.MemFd ||
@ -597,11 +597,12 @@ static int impl_node_process(struct spa_node *node)
input->status = -EINVAL;
return -EINVAL;
}
spa_log_trace(this->log, NAME " %p: queue buffer %u", this, input->buffer_id);
spa_list_append(&this->ready, &b->link);
SPA_FLAG_UNSET(b->flags, BUFFER_FLAG_OUT);
this->threshold = b->buf->datas[0].chunk->size / this->frame_size;
spa_alsa_write(this, 0);
input->status = SPA_STATUS_OK;

8
spa/plugins/alsa/alsa-source.c
View file

@ -512,10 +512,10 @@ impl_node_port_use_buffers(struct spa_node *node,
struct buffer *b = &this->buffers[i];
struct spa_data *d = buffers[i]->datas;
b->outbuf = buffers[i];
b->buf = buffers[i];
b->flags = 0;
b->h = spa_buffer_find_meta(b->outbuf, this->type.meta.Header);
b->h = spa_buffer_find_meta(b->buf, this->type.meta.Header);
if (!((d[0].type == this->type.data.MemFd ||
d[0].type == this->type.data.DmaBuf ||
@ -637,9 +637,9 @@ static int impl_node_process(struct spa_node *node)
b = spa_list_first(&this->ready, struct buffer, link);
spa_list_remove(&b->link);
spa_log_trace(this->log, NAME " %p: dequeue buffer %d", node, b->outbuf->id);
spa_log_trace(this->log, NAME " %p: dequeue buffer %d", node, b->buf->id);
io->buffer_id = b->outbuf->id;
io->buffer_id = b->buf->id;
io->status = SPA_STATUS_HAVE_BUFFER;
return SPA_STATUS_HAVE_BUFFER;

19
spa/plugins/alsa/alsa-utils.c
View file

@ -365,7 +365,7 @@ static int set_timeout(struct state *state, size_t extra)
calc_timeout(state->filled + extra, state->threshold, state->rate, &state->now, &ts.it_value);
ts.it_interval.tv_sec = 0;
ts.it_interval.tv_nsec = 0;
ts.it_interval.tv_nsec = ((size_t)state->threshold * SPA_NSEC_PER_SEC) / state->rate;
timerfd_settime(state->timerfd, TFD_TIMER_ABSTIME, &ts, NULL);
return 0;
@ -396,7 +396,7 @@ int spa_alsa_write(struct state *state, snd_pcm_uframes_t silence)
uint32_t index, offs, avail, size, maxsize, l0, l1;
b = spa_list_first(&state->ready, struct buffer, link);
d = b->outbuf->datas;
d = b->buf->datas;
dst = SPA_MEMBER(my_areas[0].addr, offset * state->frame_size, uint8_t);
src = d[0].data;
@ -424,8 +424,8 @@ int spa_alsa_write(struct state *state, snd_pcm_uframes_t silence)
if (state->ready_offset >= size) {
spa_list_remove(&b->link);
SPA_FLAG_SET(b->flags, BUFFER_FLAG_OUT);
spa_log_trace(state->log, "alsa-util %p: reuse buffer %u", state, b->outbuf->id);
state->callbacks->reuse_buffer(state->callbacks_data, 0, b->outbuf->id);
spa_log_trace(state->log, "alsa-util %p: reuse buffer %u", state, b->buf->id);
state->callbacks->reuse_buffer(state->callbacks_data, 0, b->buf->id);
state->ready_offset = 0;
}
written += n_frames;
@ -489,7 +489,7 @@ push_frames(struct state *state,
b->h->dts_offset = 0;
}
d = b->outbuf->datas;
d = b->buf->datas;
src = SPA_MEMBER(my_areas[0].addr, offset * state->frame_size, uint8_t);
@ -577,11 +577,12 @@ static void alsa_on_playback_timeout_event(struct spa_source *source)
if (spa_list_is_empty(&state->ready)) {
struct spa_io_buffers *io = state->io;
if (state->filled == 0)
if (state->filled == 0) {
if (state->alsa_started)
spa_log_warn(state->log,
"alsa-util %p: underrun", state);
spa_alsa_write(state, state->threshold);
else
set_timeout(state, state->threshold);
}
spa_log_trace(state->log, "alsa-util %p: %d %lu", state, io->status,
state->filled);

2
spa/plugins/alsa/alsa-utils.h
View file

@ -51,7 +51,7 @@ struct props {
#define MAX_BUFFERS 32
struct buffer {
struct spa_buffer *outbuf;
struct spa_buffer *buf;
struct spa_meta_header *h;
#define BUFFER_FLAG_OUT (1<<0)
uint32_t flags;