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67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/* GStreamer
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* Copyright (C) 2020 Ognyan Tonchev <ognyan at axis dot 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 Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_BUFFER_MEMORY_H__
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#define __GST_BUFFER_MEMORY_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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struct _GstBufferMemoryMap
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{
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/* private datas */
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GstBuffer *buf;
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GstMemory *mem;
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GstMapInfo map;
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guint index;
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gsize total_size;
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/* public datas */
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/* data of the currently mapped memory */
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const guint8 *data;
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guint offset;
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/* size of the currently mapped memory */
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gsize size;
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/* When advancing through the data with gst_buffer_memory_advance_bytes ()
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* the data field is also advanced and the size field decreased with the
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* corresponding number of bytes. If all the bytes from the currently mapped
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* GstMemory have been consumed then a new GstMemory will be mapped and data
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* and size fileds will be updated.
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* */
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};
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typedef struct _GstBufferMemoryMap GstBufferMemoryMap;
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G_GNUC_INTERNAL
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gboolean gst_buffer_memory_map (GstBuffer * buffer, GstBufferMemoryMap * map);
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G_GNUC_INTERNAL
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gboolean gst_buffer_memory_advance_bytes (GstBufferMemoryMap * map, gsize size);
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G_GNUC_INTERNAL
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void gst_buffer_memory_unmap (GstBufferMemoryMap * map);
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G_END_DECLS
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#endif /* __GST_BUFFER_MEMORY_H__ */
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