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156 lines
No EOL
4.9 KiB
C
156 lines
No EOL
4.9 KiB
C
/*
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* GStreamer
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* Copyright (C) 2009 Carl-Anton Ingmarsson <ca.ingmarsson@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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#define GST_TYPE_VIDEO_FRAME (gst_video_frame_get_type())
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#define GST_IS_VIDEO_FRAME(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_VIDEO_FRAME))
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#define GST_VIDEO_FRAME(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_VIDEO_FRAME, GstVideoFrame))
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#define GST_VIDEO_FRAME_CAST(obj) ((GstVideoFrame *)obj)
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/**
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* GstVideoFrameFlag:
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* @GST_VIDEO_FRAME_FLAG_PREROLL: the frame is part of a preroll and should not be
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* displayed.
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* @GST_VIDEO_FRAME_FLAG_DISCONT: the frame marks a discontinuity in the stream.
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* This typically occurs after a seek or a dropped buffer from a live or
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* network source.
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* @GST_VIDEO_FRAME_FLAG_GAP: the frame has been created to fill a gap in the
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* stream and contains media neutral data (elements can switch to optimized code
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* path that ignores the buffer content).
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* @GST_VIDEO_FRAME_FLAG_DELTA_UNIT: the frame is a keyframe.
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* @GST_VIDEO_FRAME_FLAG_SYNC_POINT: the frame marks a sync point.
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* @GST_VIDEO_FRAME_FLAG_EOS: the frame is the last in the stream.
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* @GST_VIDEO_FRAME_FLAG_TFF: If the frame is interlaced, then the first
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* field in the video frame is the top field. If unset, the bottom field is first.
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* @GST_VIDEO_FRAME_FLAG_LAST: additional flags can be added starting from this flag.
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* A set of frame flags used to describe properties of a #GstVideoFrame.
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*/
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typedef enum
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{
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GST_VIDEO_FRAME_FLAG_PREROLL = (GST_MINI_OBJECT_FLAG_LAST << 0),
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GST_VIDEO_FRAME_FLAG_DISCONT = (GST_MINI_OBJECT_FLAG_LAST << 1),
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GST_VIDEO_FRAME_FLAG_GAP = (GST_MINI_OBJECT_FLAG_LAST << 2),
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GST_VIDEO_FRAME_FLAG_KEYFRAME = (GST_MINI_OBJECT_FLAG_LAST << 3),
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GST_VIDEO_FRAME_FLAG_SYNC_POINT = (GST_MINI_OBJECT_FLAG_LAST << 4),
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GST_VIDEO_FRAME_FLAG_EOS = (GST_MINI_OBJECT_FLAG_LAST << 5),
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GST_VIDEO_FRAME_FLAG_TFF = (GST_MINI_OBJECT_FLAG_LAST << 6),
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GST_VIDEO_FRAME_FLAG_LAST = (GST_MINI_OBJECT_FLAG_LAST << 7)
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} GstVideoFrameFlag;
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typedef struct _GstVideoFrame GstVideoFrame;
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typedef struct _GstVideoFrameClass GstVideoFrameClass;
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struct _GstVideoFrame
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{
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GstMiniObject mini_object;
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GstClockTime decode_timestamp;
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GstClockTime presentation_timestamp;
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GstClockTime presentation_duration;
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gint system_frame_number;
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gint decode_frame_number;
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gint presentation_frame_number;
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gint distance_from_sync;
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GstBuffer *sink_buffer;
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GstBuffer *src_buffer;
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gint field_index;
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gint n_fields;
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};
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struct _GstVideoFrameClass
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{
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GstMiniObjectClass mini_object_class;
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};
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/* refcounting */
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/**
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* gst_video_frame_ref:
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* @frame: a #GstVideoFrame.
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*
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* Increases the refcount of the given frame by one.
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*
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* Returns: @frame
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*/
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#ifdef _FOOL_GTK_DOC_
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G_INLINE_FUNC GstVideoFrame * gst_buffer_ref (GstVideoFrame * frame);
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#endif
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static inline GstVideoFrame *
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gst_video_frame_ref (GstVideoFrame *frame)
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{
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return (GstVideoFrame *) gst_mini_object_ref (GST_MINI_OBJECT_CAST (frame));
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}
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/**
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* gst_video_frame_unref:
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* @frame: a #GstVideoFrame.
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*
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* Decreases the refcount of the frame. If the refcount reaches 0, the frame
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* will be freed.
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*/
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#ifdef _FOOL_GTK_DOC_
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G_INLINE_FUNC void gst_video_frame_unref (GstVideoFrame * frame);
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#endif
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static inline void
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gst_video_frame_unref (GstVideoFrame * frame)
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{
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gst_mini_object_unref (GST_MINI_OBJECT_CAST (frame));
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}
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/**
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* GST_VIDEO_FRAME_FLAG_IS_SET:
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* @buf: a #GstVideoFrame.
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* @flag: the #GstVideoFrameFlag to check.
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*
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* Gives the status of a specific flag on a video frame.
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*/
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#define GST_VIDEO_FRAME_FLAG_IS_SET(frame,flag) GST_MINI_OBJECT_FLAG_IS_SET (frame, flag)
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/**
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* GST_VIDEO_FRAME_FLAG_SET:
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* @buf: a #GstVideoFrame.
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* @flag: the #GstVideoFrameFlag to set.
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*
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* Sets a frame flag on a video frame.
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*/
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#define GST_VIDEO_FRAME_FLAG_SET(frame,flag) GST_MINI_OBJECT_FLAG_SET (frame, flag)
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/**
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* GST_VIDEO_FRAME_FLAG_UNSET:
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* @buf: a #GstVideoFrame.
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* @flag: the #GstVideoFrameFlag to clear.
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*
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* Clears a frame flag.
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*/
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#define GST_VIDEO_FRAME_FLAG_UNSET(frame,flag) GST_MINI_OBJECT_FLAG_UNSET (frame, flag)
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GstVideoFrame *gst_video_frame_new (void);
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GType gst_video_frame_get_type (void);
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#endif |