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alsa: work on ringbuffer data transport

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Add ringbuffer test
This commit is contained in:
Wim Taymans 2017-04-20 19:25:14 +02:00
parent 0b508db9fc
commit f0aafb5b51
9 changed files with 589 additions and 113 deletions
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34
spa/plugins/audiotestsrc/audiotestsrc.c
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@ -98,6 +98,7 @@ struct _ATSBuffer {
SpaBuffer *outbuf;
bool outstanding;
SpaMetaHeader *h;
SpaMetaRingbuffer *rb;
SpaList link;
};
@ -296,6 +297,7 @@ audiotestsrc_make_buffer (SpaAudioTestSrc *this)
n_bytes = b->outbuf->datas[0].maxsize;
if (io->range.min_size != 0) {
n_bytes = SPA_MIN (n_bytes, io->range.min_size);
if (io->range.max_size < n_bytes)
n_bytes = io->range.max_size;
}
@ -303,12 +305,33 @@ audiotestsrc_make_buffer (SpaAudioTestSrc *this)
spa_log_trace (this->log, "audiotestsrc %p: dequeue buffer %d %d %d", this, b->outbuf->id,
b->outbuf->datas[0].maxsize, n_bytes);
n_samples = n_bytes / this->bpf;
this->render_func (this, b->outbuf->datas[0].data, n_samples);
if (b->rb) {
int32_t filled, avail;
uint32_t index, offset;
b->outbuf->datas[0].chunk->offset = 0;
b->outbuf->datas[0].chunk->size = n_bytes;
b->outbuf->datas[0].chunk->stride = 0;
filled = spa_ringbuffer_get_write_index (&b->rb->ringbuffer, &index);
avail = b->rb->ringbuffer.size - filled;
n_bytes = SPA_MIN (avail, n_bytes);
n_samples = n_bytes / this->bpf;
offset = index & b->rb->ringbuffer.mask;
if (offset + n_bytes > b->rb->ringbuffer.size) {
uint32_t l0 = b->rb->ringbuffer.size - offset;
this->render_func (this, SPA_MEMBER (b->outbuf->datas[0].data, offset, void), l0 / this->bpf);
this->render_func (this, b->outbuf->datas[0].data, (n_bytes - l0) / this->bpf);
} else {
this->render_func (this, SPA_MEMBER (b->outbuf->datas[0].data, offset, void), n_samples);
}
spa_ringbuffer_write_advance (&b->rb->ringbuffer, n_bytes);
} else {
n_samples = n_bytes / this->bpf;
this->render_func (this, b->outbuf->datas[0].data, n_samples);
b->outbuf->datas[0].chunk->size = n_bytes;
b->outbuf->datas[0].chunk->offset = 0;
b->outbuf->datas[0].chunk->stride = 0;
}
if (b->h) {
b->h->seq = this->sample_count;
@ -703,6 +726,7 @@ spa_audiotestsrc_node_port_use_buffers (SpaNode *node,
b->outbuf = buffers[i];
b->outstanding = false;
b->h = spa_buffer_find_meta (buffers[i], SPA_META_TYPE_HEADER);
b->rb = spa_buffer_find_meta (buffers[i], SPA_META_TYPE_RINGBUFFER);
switch (d[0].type) {
case SPA_DATA_TYPE_MEMPTR: