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mixer-dsp: handle input offset

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Handle the input buffer offset and clamp the size to maxsize.
This commit is contained in:
Wim Taymans 2022-05-17 13:02:09 +02:00
parent 411b12f59e
commit e1a50a6c1a
1 changed files with 20 additions and 11 deletions
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31
spa/plugins/audiomixer/mixer-dsp.c
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@ -690,9 +690,9 @@ static int impl_node_process(void *object)
outio->buffer_id = SPA_ID_INVALID;
}
buffers = alloca(MAX_PORTS * sizeof(struct buffer *));
datas = alloca(MAX_PORTS * sizeof(void *));
n_buffers = 0;
buffers = alloca(MAX_PORTS * sizeof(struct buffer *));
datas = alloca(MAX_PORTS * sizeof(void *));
n_buffers = 0;
maxsize = UINT32_MAX;
@ -700,6 +700,8 @@ static int impl_node_process(void *object)
struct port *inport = GET_IN_PORT(this, i);
struct spa_io_buffers *inio = NULL;
struct buffer *inb;
struct spa_data *bd;
uint32_t size, offs;
if (SPA_UNLIKELY(!PORT_VALID(inport) ||
(inio = inport->io) == NULL ||
@ -715,21 +717,26 @@ static int impl_node_process(void *object)
}
inb = &inport->buffers[inio->buffer_id];
maxsize = SPA_MIN(inb->buffer->datas[0].chunk->size, maxsize);
bd = &inb->buffer->datas[0];
spa_log_trace_fp(this->log, "%p: mix input %d %p->%p %d %d %d", this,
i, inio, outio, inio->status, inio->buffer_id, maxsize);
offs = SPA_MIN(bd->chunk->offset, bd->maxsize);
size = SPA_MIN(bd->maxsize - offs, bd->chunk->size);
maxsize = SPA_MIN(maxsize, size);
datas[n_buffers] = inb->buffer->datas[0].data;
spa_log_trace_fp(this->log, "%p: mix input %d %p->%p %d %d %d:%d", this,
i, inio, outio, inio->status, inio->buffer_id,
offs, size);
datas[n_buffers] = SPA_PTROFF(bd->data, offs, void);
buffers[n_buffers++] = inb;
inio->status = SPA_STATUS_NEED_DATA;
}
outb = dequeue_buffer(this, outport);
if (SPA_UNLIKELY(outb == NULL)) {
spa_log_trace(this->log, "%p: out of buffers", this);
return -EPIPE;
}
if (SPA_UNLIKELY(outb == NULL)) {
spa_log_trace(this->log, "%p: out of buffers", this);
return -EPIPE;
}
if (n_buffers == 1) {
*outb->buffer = *buffers[0]->buffer;
@ -743,6 +750,8 @@ static int impl_node_process(void *object)
d[0].chunk->size = maxsize;
d[0].chunk->stride = sizeof(float);
spa_log_trace_fp(this->log, "%p: %d mix %d", this, n_buffers, maxsize);
mix_ops_process(&this->ops, d[0].data,
datas, n_buffers, maxsize / sizeof(float));
}