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The zynqultrascaleplus OMX implementation has a custom extension allowing decoders to output dmabuf and so avoid buffers copy between OMX and GStreamer. Make use of this extension when built on the zynqultrascaleplus. The buffer pool code should be re-usable for other platforms as well. https://bugzilla.gnome.org/show_bug.cgi?id=784847
103 lines
2.8 KiB
C
103 lines
2.8 KiB
C
/*
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* Copyright 2014 Advanced Micro Devices, Inc.
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* Author: Christian König <christian.koenig@amd.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation
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* version 2.1 of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef __GST_OMX_BUFFER_POOL_H__
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#define __GST_OMX_BUFFER_POOL_H__
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gst/gst.h>
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#include <gst/video/gstvideometa.h>
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#include <gst/video/gstvideopool.h>
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#include "gstomx.h"
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G_BEGIN_DECLS
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#define GST_TYPE_OMX_BUFFER_POOL \
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(gst_omx_buffer_pool_get_type())
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#define GST_OMX_BUFFER_POOL(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OMX_BUFFER_POOL,GstOMXBufferPool))
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#define GST_IS_OMX_BUFFER_POOL(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OMX_BUFFER_POOL))
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typedef struct _GstOMXBufferPool GstOMXBufferPool;
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typedef struct _GstOMXBufferPoolClass GstOMXBufferPoolClass;
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typedef enum {
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GST_OMX_BUFFER_MODE_SYSTEM_MEMORY,
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GST_OMX_BUFFER_MODE_DMABUF,
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} GstOMXBufferMode;
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struct _GstOMXBufferPool
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{
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GstVideoBufferPool parent;
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GstElement *element;
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GstCaps *caps;
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gboolean add_videometa;
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gboolean need_copy;
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GstVideoInfo video_info;
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/* Owned by element, element has to stop this pool before
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* it destroys component or port */
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GstOMXComponent *component;
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GstOMXPort *port;
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/* For handling OpenMAX allocated memory */
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GstAllocator *allocator;
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/* Set from outside this pool */
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/* TRUE if we're currently allocating all our buffers */
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gboolean allocating;
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/* TRUE if the pool is not used anymore */
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gboolean deactivated;
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/* For populating the pool from another one */
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GstBufferPool *other_pool;
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GPtrArray *buffers;
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/* Used during acquire for output ports to
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* specify which buffer has to be retrieved
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* and during alloc, which buffer has to be
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* wrapped
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*/
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gint current_buffer_index;
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/* The type of buffers produced by the decoder */
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GstOMXBufferMode output_mode;
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};
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struct _GstOMXBufferPoolClass
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{
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GstVideoBufferPoolClass parent_class;
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};
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GType gst_omx_buffer_pool_get_type (void);
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GstBufferPool *gst_omx_buffer_pool_new (GstElement * element, GstOMXComponent * component, GstOMXPort * port, GstOMXBufferMode output_mode);
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G_END_DECLS
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#endif /* __GST_OMX_BUFFER_POOL_H__ */
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