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stream: improve stream API

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Simplify the stream API. make just 2 methods to queue and dequeue
buffers. Make just one callback when new buffers can be dequeued.
Add support for driver nodes such as the video-src.
Pass a pw_buffer structure to add/remove_buffer and make it possible
to attach metadata to it. This makes it a lot easier to implement
the gstreamer pipewire pool.
Call the stream process function from the main loop and use a lockfree
ringbuffer to pass buffers between the threads. Make it possible to
also call process from the RT thread.
unmap the buffer data when needed.
This commit is contained in:
Wim Taymans 2018-03-22 16:40:27 +01:00
parent 97547d726f
commit f9ceedb714
11 changed files with 451 additions and 508 deletions
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5
src/gst/gstpipewiresrc.h
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@ -24,6 +24,7 @@
#include <gst/base/gstpushsrc.h>
#include <pipewire/pipewire.h>
#include <gst/gstpipewirepool.h>
G_BEGIN_DECLS
@ -76,11 +77,9 @@ struct _GstPipeWireSrc {
struct pw_stream *stream;
struct spa_hook stream_listener;
GstAllocator *fd_allocator;
GstAllocator *dmabuf_allocator;
GstStructure *properties;
GHashTable *buf_ids;
GstPipeWirePool *pool;
GQueue queue;
GstClock *clock;
};