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132 lines
5.4 KiB
C
132 lines
5.4 KiB
C
/* GStreamer
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* Copyright (C) <2011> Wim Taymans <wim.taymans@gmail.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_VIDEO_FRAME_H__
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#define __GST_VIDEO_FRAME_H__
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#include <gst/gst.h>
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#include <gst/video/video-info.h>
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G_BEGIN_DECLS
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#include <gst/video/video-enumtypes.h>
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typedef struct _GstVideoFrame GstVideoFrame;
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/**
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* GstVideoFrameFlags:
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* @GST_VIDEO_FRAME_FLAG_NONE: no flags
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* @GST_VIDEO_FRAME_FLAG_TFF: The video frame has the top field first
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* @GST_VIDEO_FRAME_FLAG_RFF: The video frame has the repeat flag
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* @GST_VIDEO_FRAME_FLAG_ONEFIELD: The video frame has one field
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*
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* Extra video frame flags
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*/
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typedef enum {
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GST_VIDEO_FRAME_FLAG_NONE = 0,
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GST_VIDEO_FRAME_FLAG_TFF = (1 << 0),
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GST_VIDEO_FRAME_FLAG_RFF = (1 << 1),
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GST_VIDEO_FRAME_FLAG_ONEFIELD = (1 << 2)
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} GstVideoFrameFlags;
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/**
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* GstVideoFrame:
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* @info: the #GstVideoInfo
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* @buffer: the mapped buffer
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* @meta: pointer to metadata if any
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* @id: id of the mapped frame. the id can for example be used to
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* indentify the frame in case of multiview video.
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* @data: pointers to the plane data
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* @map: mappings of the planes
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*
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* A video frame obtained from gst_video_frame_map()
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*/
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struct _GstVideoFrame {
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GstVideoInfo info;
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GstVideoFrameFlags flags;
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GstBuffer *buffer;
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gpointer meta;
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gint id;
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gpointer data[GST_VIDEO_MAX_PLANES];
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GstMapInfo map[GST_VIDEO_MAX_PLANES];
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};
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gboolean gst_video_frame_map (GstVideoFrame *frame, GstVideoInfo *info,
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GstBuffer *buffer, GstMapFlags flags);
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gboolean gst_video_frame_map_id (GstVideoFrame *frame, GstVideoInfo *info,
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GstBuffer *buffer, gint id, GstMapFlags flags);
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void gst_video_frame_unmap (GstVideoFrame *frame);
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gboolean gst_video_frame_copy (GstVideoFrame *dest, const GstVideoFrame *src);
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gboolean gst_video_frame_copy_plane (GstVideoFrame *dest, const GstVideoFrame *src,
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guint plane);
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/* general info */
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#define GST_VIDEO_FRAME_FORMAT(f) (GST_VIDEO_INFO_FORMAT(&(f)->info))
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#define GST_VIDEO_FRAME_WIDTH(f) (GST_VIDEO_INFO_WIDTH(&(f)->info))
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#define GST_VIDEO_FRAME_HEIGHT(f) (GST_VIDEO_INFO_HEIGHT(&(f)->info))
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#define GST_VIDEO_FRAME_SIZE(f) (GST_VIDEO_INFO_SIZE(&(f)->info))
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/* dealing with planes */
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#define GST_VIDEO_FRAME_N_PLANES(f) (GST_VIDEO_INFO_N_PLANES(&(f)->info))
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#define GST_VIDEO_FRAME_PLANE_DATA(f,p) ((f)->data[p])
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#define GST_VIDEO_FRAME_PLANE_OFFSET(f,p) (GST_VIDEO_INFO_PLANE_OFFSET(&(f)->info,(p)))
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#define GST_VIDEO_FRAME_PLANE_STRIDE(f,p) (GST_VIDEO_INFO_PLANE_STRIDE(&(f)->info,(p)))
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/* dealing with components */
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#define GST_VIDEO_FRAME_N_COMPONENTS(f) GST_VIDEO_INFO_N_COMPONENTS(&(f)->info)
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#define GST_VIDEO_FRAME_COMP_DEPTH(f,c) GST_VIDEO_INFO_COMP_DEPTH(&(f)->info,(c))
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#define GST_VIDEO_FRAME_COMP_DATA(f,c) GST_VIDEO_INFO_COMP_DATA(&(f)->info,(f)->data,(c))
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#define GST_VIDEO_FRAME_COMP_STRIDE(f,c) GST_VIDEO_INFO_COMP_STRIDE(&(f)->info,(c))
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#define GST_VIDEO_FRAME_COMP_OFFSET(f,c) GST_VIDEO_INFO_COMP_OFFSET(&(f)->info,(c))
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#define GST_VIDEO_FRAME_COMP_WIDTH(f,c) GST_VIDEO_INFO_COMP_WIDTH(&(f)->info,(c))
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#define GST_VIDEO_FRAME_COMP_HEIGHT(f,c) GST_VIDEO_INFO_COMP_HEIGHT(&(f)->info,(c))
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#define GST_VIDEO_FRAME_COMP_PLANE(f,c) GST_VIDEO_INFO_COMP_PLANE(&(f)->info,(c))
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#define GST_VIDEO_FRAME_COMP_PSTRIDE(f,c) GST_VIDEO_INFO_COMP_PSTRIDE(&(f)->info,(c))
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#define GST_VIDEO_FRAME_COMP_POFFSET(f,c) GST_VIDEO_INFO_COMP_POFFSET(&(f)->info,(c))
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/* buffer flags */
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/**
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* GstVideoBufferFlags:
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* @GST_VIDEO_BUFFER_FLAG_TFF: If the #GstBuffer is interlaced, then the first field
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* in the video frame is the top field. If unset, the
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* bottom field is first.
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* @GST_VIDEO_BUFFER_FLAG_RFF: If the #GstBuffer is interlaced, then the first field
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* (as defined by the %GST_VIDEO_BUFFER_TFF flag setting)
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* is repeated.
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* @GST_VIDEO_BUFFER_FLAG_ONEFIELD: If the #GstBuffer is interlaced, then only the
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* first field (as defined by the %GST_VIDEO_BUFFER_TFF
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* flag setting) is to be displayed.
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*
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* Additional video buffer flags.
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*/
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typedef enum {
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GST_VIDEO_BUFFER_FLAG_TFF = (GST_BUFFER_FLAG_LAST << 0),
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GST_VIDEO_BUFFER_FLAG_RFF = (GST_BUFFER_FLAG_LAST << 1),
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GST_VIDEO_BUFFER_FLAG_ONEFIELD = (GST_BUFFER_FLAG_LAST << 2),
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GST_VIDEO_BUFFER_FLAG_LAST = (GST_BUFFER_FLAG_LAST << 8)
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} GstVideoBufferFlags;
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G_END_DECLS
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#endif /* __GST_VIDEO_FRAME_H__ */
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