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audiotestsrc: add live mode

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Add a live mode to audiotestsrc by using a timerfd to push output.
Make a queue helper and use in alsa
Add live port flag
This commit is contained in:
Wim Taymans 2016-09-19 13:14:14 +02:00
parent fc7b4a9009
commit 1e565a5f65
5 changed files with 235 additions and 59 deletions
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16
spa/plugins/alsa/alsa-utils.c
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@ -301,13 +301,10 @@ mmap_read (SpaALSAState *state)
snd_pcm_status_get_htstamp (status, &htstamp);
now = (int64_t)htstamp.tv_sec * 1000000000ll + (int64_t)htstamp.tv_nsec;
b = state->free_head;
if (b == NULL)
SPA_QUEUE_POP_HEAD (&state->free, SpaALSABuffer, b);
if (b == NULL) {
fprintf (stderr, "no more buffers\n");
else {
state->free_head = b->next;
if (state->free_head == NULL)
state->free_tail = NULL;
} else {
b->next = NULL;
dest = b->ptr;
}
@ -349,12 +346,7 @@ mmap_read (SpaALSAState *state)
d = SPA_BUFFER_DATAS (b->outbuf);
d[0].mem.size = avail * state->frame_size;
if (state->ready_tail)
state->ready_tail->next = b;
state->ready_tail = b;
if (state->ready_head == NULL)
state->ready_head = b;
state->ready_count++;
SPA_QUEUE_PUSH_TAIL (&state->ready, SpaALSABuffer, b);
event.type = SPA_NODE_EVENT_TYPE_HAVE_OUTPUT;
event.size = sizeof (ho);