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graph: new scheduling model

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Make explicit links between elements that are used to activate the
next element in the graph.
Make subgraphs a special regular node. Make a link from the
subgraph children to the parent so that the subgraph completes when
all the children completed.
Implement a single process function in plugins
Remove many messages in the client node
This commit is contained in:
Wim Taymans 2018-03-20 11:37:11 +01:00
parent 9b0a880afb
commit 33a322b96e
36 changed files with 401 additions and 750 deletions
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4
spa/plugins/v4l2/v4l2-source.c
View file

@ -828,6 +828,8 @@ static int impl_node_process(struct spa_node *node)
io = port->io;
spa_return_val_if_fail(io != NULL, -EIO);
spa_log_trace(port->log, NAME " %p; status %d", node, io->status);
if (io->status == SPA_STATUS_HAVE_BUFFER)
return SPA_STATUS_HAVE_BUFFER;
@ -862,6 +864,8 @@ static int impl_node_process(struct spa_node *node)
b = spa_list_first(&port->queue, struct buffer, link);
spa_list_remove(&b->link);
spa_log_trace(port->log, NAME " %p: dequeue buffer %d", node, b->outbuf->id);
io->buffer_id = b->outbuf->id;
io->status = SPA_STATUS_HAVE_BUFFER;

2
spa/plugins/v4l2/v4l2-utils.c
View file

@ -1181,7 +1181,7 @@ static int mmap_read(struct impl *this)
spa_list_append(&port->queue, &b->link);
spa_log_trace(port->log, "v4l2 %p: have output %d", this, buf.index);
this->callbacks->have_output(this->callbacks_data);
this->callbacks->process(this->callbacks_data, SPA_STATUS_HAVE_BUFFER);
return 0;
}