mirror of
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Since we started depending on GLib 2.44, we can be sure this macro is defined (it will be a no-op on compilers that don't support it). For plugins we should just start using `G_DECLARE_FINAL_TYPE` which means we no longer need the macro there, but for most types in base/gst-libs we don't want to break ABI, which means it's better to just keep it like it is (and use the `#ifdef` instead).
452 lines
20 KiB
C
452 lines
20 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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_VIDEO_INFO_H__
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#define __GST_VIDEO_INFO_H__
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#include <gst/gst.h>
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#include <gst/video/video-format.h>
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#include <gst/video/video-color.h>
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G_BEGIN_DECLS
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#include <gst/video/video-enumtypes.h>
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typedef struct _GstVideoInfo GstVideoInfo;
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/**
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* GST_CAPS_FEATURE_FORMAT_INTERLACED:
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*
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* Name of the caps feature indicating that the stream is interlaced. Currently
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* it is only used for video.
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*
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* Since: 1.16.
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*/
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#define GST_CAPS_FEATURE_FORMAT_INTERLACED "format:Interlaced"
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/**
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* GstVideoInterlaceMode:
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* @GST_VIDEO_INTERLACE_MODE_PROGRESSIVE: all frames are progressive
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* @GST_VIDEO_INTERLACE_MODE_INTERLEAVED: 2 fields are interleaved in one video
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* frame. Extra buffer flags describe the field order.
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* @GST_VIDEO_INTERLACE_MODE_MIXED: frames contains both interlaced and
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* progressive video, the buffer flags describe the frame and fields.
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* @GST_VIDEO_INTERLACE_MODE_FIELDS: 2 fields are stored in one buffer, use the
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* frame ID to get access to the required field. For multiview (the
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* 'views' property > 1) the fields of view N can be found at frame ID
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* (N * 2) and (N * 2) + 1.
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* Each field has only half the amount of lines as noted in the
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* height property. This mode requires multiple GstVideoMeta metadata
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* to describe the fields.
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* @GST_VIDEO_INTERLACE_MODE_ALTERNATE: 1 field is stored in one buffer,
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* @GST_VIDEO_BUFFER_FLAG_TF or @GST_VIDEO_BUFFER_FLAG_BF indicates if
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* the buffer is carrying the top or bottom field, respectively. The top and
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* bottom buffers are expected to alternate in the pipeline, with this mode
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* (Since: 1.16).
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*
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* The possible values of the #GstVideoInterlaceMode describing the interlace
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* mode of the stream.
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*/
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typedef enum {
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GST_VIDEO_INTERLACE_MODE_PROGRESSIVE = 0,
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GST_VIDEO_INTERLACE_MODE_INTERLEAVED,
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GST_VIDEO_INTERLACE_MODE_MIXED,
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GST_VIDEO_INTERLACE_MODE_FIELDS,
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GST_VIDEO_INTERLACE_MODE_ALTERNATE,
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} GstVideoInterlaceMode;
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GST_VIDEO_API
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const gchar * gst_video_interlace_mode_to_string (GstVideoInterlaceMode mode);
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GST_VIDEO_API
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GstVideoInterlaceMode gst_video_interlace_mode_from_string (const gchar * mode);
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/**
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* GstVideoMultiviewMode:
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* @GST_VIDEO_MULTIVIEW_MODE_NONE: A special value indicating
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* no multiview information. Used in GstVideoInfo and other places to
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* indicate that no specific multiview handling has been requested or
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* provided. This value is never carried on caps.
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* @GST_VIDEO_MULTIVIEW_MODE_MONO: All frames are monoscopic.
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* @GST_VIDEO_MULTIVIEW_MODE_LEFT: All frames represent a left-eye view.
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* @GST_VIDEO_MULTIVIEW_MODE_RIGHT: All frames represent a right-eye view.
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* @GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE: Left and right eye views are
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* provided in the left and right half of the frame respectively.
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* @GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX: Left and right eye
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* views are provided in the left and right half of the frame, but
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* have been sampled using quincunx method, with half-pixel offset
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* between the 2 views.
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* @GST_VIDEO_MULTIVIEW_MODE_COLUMN_INTERLEAVED: Alternating vertical
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* columns of pixels represent the left and right eye view respectively.
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* @GST_VIDEO_MULTIVIEW_MODE_ROW_INTERLEAVED: Alternating horizontal
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* rows of pixels represent the left and right eye view respectively.
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* @GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM: The top half of the frame
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* contains the left eye, and the bottom half the right eye.
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* @GST_VIDEO_MULTIVIEW_MODE_CHECKERBOARD: Pixels are arranged with
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* alternating pixels representing left and right eye views in a
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* checkerboard fashion.
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* @GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME: Left and right eye views
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* are provided in separate frames alternately.
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* @GST_VIDEO_MULTIVIEW_MODE_MULTIVIEW_FRAME_BY_FRAME: Multiple
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* independent views are provided in separate frames in sequence.
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* This method only applies to raw video buffers at the moment.
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* Specific view identification is via the `GstVideoMultiviewMeta`
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* and #GstVideoMeta(s) on raw video buffers.
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* @GST_VIDEO_MULTIVIEW_MODE_SEPARATED: Multiple views are
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* provided as separate #GstMemory framebuffers attached to each
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* #GstBuffer, described by the `GstVideoMultiviewMeta`
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* and #GstVideoMeta(s)
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*
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* All possible stereoscopic 3D and multiview representations.
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* In conjunction with #GstVideoMultiviewFlags, describes how
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* multiview content is being transported in the stream.
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*/
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typedef enum {
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GST_VIDEO_MULTIVIEW_MODE_NONE = -1,
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GST_VIDEO_MULTIVIEW_MODE_MONO = 0,
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/* Single view modes */
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GST_VIDEO_MULTIVIEW_MODE_LEFT,
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GST_VIDEO_MULTIVIEW_MODE_RIGHT,
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/* Stereo view modes */
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GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE,
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GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX,
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GST_VIDEO_MULTIVIEW_MODE_COLUMN_INTERLEAVED,
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GST_VIDEO_MULTIVIEW_MODE_ROW_INTERLEAVED,
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GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM,
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GST_VIDEO_MULTIVIEW_MODE_CHECKERBOARD,
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/* Padding for new frame packing modes */
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GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME = 32,
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/* Multivew mode(s) */
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GST_VIDEO_MULTIVIEW_MODE_MULTIVIEW_FRAME_BY_FRAME,
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GST_VIDEO_MULTIVIEW_MODE_SEPARATED
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/* future expansion for annotated modes */
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} GstVideoMultiviewMode;
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/**
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* GstVideoMultiviewFramePacking:
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_NONE: A special value indicating
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* no frame packing info.
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_MONO: All frames are monoscopic.
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_LEFT: All frames represent a left-eye view.
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_RIGHT: All frames represent a right-eye view.
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_SIDE_BY_SIDE: Left and right eye views are
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* provided in the left and right half of the frame respectively.
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_SIDE_BY_SIDE_QUINCUNX: Left and right eye
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* views are provided in the left and right half of the frame, but
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* have been sampled using quincunx method, with half-pixel offset
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* between the 2 views.
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_COLUMN_INTERLEAVED: Alternating vertical
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* columns of pixels represent the left and right eye view respectively.
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_ROW_INTERLEAVED: Alternating horizontal
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* rows of pixels represent the left and right eye view respectively.
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_TOP_BOTTOM: The top half of the frame
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* contains the left eye, and the bottom half the right eye.
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* @GST_VIDEO_MULTIVIEW_FRAME_PACKING_CHECKERBOARD: Pixels are arranged with
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* alternating pixels representing left and right eye views in a
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* checkerboard fashion.
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*
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* #GstVideoMultiviewFramePacking represents the subset of #GstVideoMultiviewMode
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* values that can be applied to any video frame without needing extra metadata.
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* It can be used by elements that provide a property to override the
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* multiview interpretation of a video stream when the video doesn't contain
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* any markers.
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*
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* This enum is used (for example) on playbin, to re-interpret a played
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* video stream as a stereoscopic video. The individual enum values are
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* equivalent to and have the same value as the matching #GstVideoMultiviewMode.
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*
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*/
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typedef enum {
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_NONE = GST_VIDEO_MULTIVIEW_MODE_NONE,
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_MONO = GST_VIDEO_MULTIVIEW_MODE_MONO,
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_LEFT = GST_VIDEO_MULTIVIEW_MODE_LEFT,
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_RIGHT = GST_VIDEO_MULTIVIEW_MODE_RIGHT,
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_SIDE_BY_SIDE = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE,
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_SIDE_BY_SIDE_QUINCUNX = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE_QUINCUNX,
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_COLUMN_INTERLEAVED = GST_VIDEO_MULTIVIEW_MODE_COLUMN_INTERLEAVED,
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_ROW_INTERLEAVED = GST_VIDEO_MULTIVIEW_MODE_ROW_INTERLEAVED,
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_TOP_BOTTOM = GST_VIDEO_MULTIVIEW_MODE_TOP_BOTTOM,
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GST_VIDEO_MULTIVIEW_FRAME_PACKING_CHECKERBOARD = GST_VIDEO_MULTIVIEW_MODE_CHECKERBOARD
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} GstVideoMultiviewFramePacking;
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#define GST_VIDEO_MULTIVIEW_MAX_FRAME_PACKING GST_VIDEO_MULTIVIEW_FRAME_PACKING_CHECKERBOARD
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/**
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* GstVideoMultiviewFlags:
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* @GST_VIDEO_MULTIVIEW_FLAGS_NONE: No flags
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* @GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST: For stereo streams, the
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* normal arrangement of left and right views is reversed.
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* @GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLIPPED: The left view is vertically
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* mirrored.
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* @GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLOPPED: The left view is horizontally
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* mirrored.
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* @GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLIPPED: The right view is
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* vertically mirrored.
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* @GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLOPPED: The right view is
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* horizontally mirrored.
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* @GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT: For frame-packed
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* multiview modes, indicates that the individual
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* views have been encoded with half the true width or height
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* and should be scaled back up for display. This flag
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* is used for overriding input layout interpretation
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* by adjusting pixel-aspect-ratio.
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* For side-by-side, column interleaved or checkerboard packings, the
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* pixel width will be doubled. For row interleaved and top-bottom
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* encodings, pixel height will be doubled.
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* @GST_VIDEO_MULTIVIEW_FLAGS_MIXED_MONO: The video stream contains both
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* mono and multiview portions, signalled on each buffer by the
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* absence or presence of the @GST_VIDEO_BUFFER_FLAG_MULTIPLE_VIEW
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* buffer flag.
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*
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* GstVideoMultiviewFlags are used to indicate extra properties of a
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* stereo/multiview stream beyond the frame layout and buffer mapping
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* that is conveyed in the #GstVideoMultiviewMode.
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*/
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typedef enum {
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GST_VIDEO_MULTIVIEW_FLAGS_NONE = 0,
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GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST = (1 << 0),
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GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLIPPED = (1 << 1),
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GST_VIDEO_MULTIVIEW_FLAGS_LEFT_FLOPPED = (1 << 2),
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GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLIPPED = (1 << 3),
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GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_FLOPPED = (1 << 4),
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GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT = (1 << 14),
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GST_VIDEO_MULTIVIEW_FLAGS_MIXED_MONO = (1 << 15)
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} GstVideoMultiviewFlags;
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/**
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* GstVideoFlags:
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* @GST_VIDEO_FLAG_NONE: no flags
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* @GST_VIDEO_FLAG_VARIABLE_FPS: a variable fps is selected, fps_n and fps_d
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* denote the maximum fps of the video
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* @GST_VIDEO_FLAG_PREMULTIPLIED_ALPHA: Each color has been scaled by the alpha
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* value.
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*
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* Extra video flags
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*/
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typedef enum {
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GST_VIDEO_FLAG_NONE = 0,
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GST_VIDEO_FLAG_VARIABLE_FPS = (1 << 0),
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GST_VIDEO_FLAG_PREMULTIPLIED_ALPHA = (1 << 1)
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} GstVideoFlags;
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/**
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* GstVideoFieldOrder:
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* @GST_VIDEO_FIELD_ORDER_UNKNOWN: unknown field order for interlaced content.
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* The actual field order is signalled via buffer flags.
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* @GST_VIDEO_FIELD_ORDER_TOP_FIELD_FIRST: top field is first
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* @GST_VIDEO_FIELD_ORDER_BOTTOM_FIELD_FIRST: bottom field is first
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*
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* Field order of interlaced content. This is only valid for
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* interlace-mode=interleaved and not interlace-mode=mixed. In the case of
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* mixed or GST_VIDEO_FIELD_ORDER_UNKOWN, the field order is signalled via
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* buffer flags.
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*
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* Since: 1.12
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*/
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typedef enum {
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GST_VIDEO_FIELD_ORDER_UNKNOWN = 0,
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GST_VIDEO_FIELD_ORDER_TOP_FIELD_FIRST = 1,
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GST_VIDEO_FIELD_ORDER_BOTTOM_FIELD_FIRST = 2,
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} GstVideoFieldOrder;
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GST_VIDEO_API
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const gchar * gst_video_field_order_to_string (GstVideoFieldOrder order);
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GST_VIDEO_API
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GstVideoFieldOrder gst_video_field_order_from_string (const gchar * order);
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/**
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* GstVideoInfo:
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* @finfo: the format info of the video
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* @interlace_mode: the interlace mode
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* @flags: additional video flags
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* @width: the width of the video
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* @height: the height of the video
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* @views: the number of views for multiview video
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* @size: the default size of one frame
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* @chroma_site: a #GstVideoChromaSite.
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* @colorimetry: the colorimetry info
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* @par_n: the pixel-aspect-ratio numerator
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* @par_d: the pixel-aspect-ratio demnominator
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* @fps_n: the framerate numerator
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* @fps_d: the framerate demnominator
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* @offset: offsets of the planes
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* @stride: strides of the planes
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* @multiview_mode: delivery mode for multiple views. (Since: 1.6)
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* @multiview_flags: flags for multiple views configuration (Since: 1.6)
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*
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* Information describing image properties. This information can be filled
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* in from GstCaps with gst_video_info_from_caps(). The information is also used
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* to store the specific video info when mapping a video frame with
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* gst_video_frame_map().
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*
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* Use the provided macros to access the info in this structure.
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*/
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struct _GstVideoInfo {
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const GstVideoFormatInfo *finfo;
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GstVideoInterlaceMode interlace_mode;
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GstVideoFlags flags;
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gint width;
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gint height;
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gsize size;
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gint views;
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GstVideoChromaSite chroma_site;
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GstVideoColorimetry colorimetry;
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gint par_n;
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gint par_d;
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gint fps_n;
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gint fps_d;
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gsize offset[GST_VIDEO_MAX_PLANES];
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gint stride[GST_VIDEO_MAX_PLANES];
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/* Union preserves padded struct size for backwards compat
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* Consumer code should use the accessor macros for fields */
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union {
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struct { /* < skip > */
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GstVideoMultiviewMode multiview_mode;
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GstVideoMultiviewFlags multiview_flags;
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GstVideoFieldOrder field_order;
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} abi;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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} ABI;
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};
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#define GST_TYPE_VIDEO_INFO (gst_video_info_get_type ())
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GST_VIDEO_API
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GType gst_video_info_get_type (void);
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/* general info */
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#define GST_VIDEO_INFO_FORMAT(i) (GST_VIDEO_FORMAT_INFO_FORMAT((i)->finfo))
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#define GST_VIDEO_INFO_NAME(i) (GST_VIDEO_FORMAT_INFO_NAME((i)->finfo))
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#define GST_VIDEO_INFO_IS_YUV(i) (GST_VIDEO_FORMAT_INFO_IS_YUV((i)->finfo))
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#define GST_VIDEO_INFO_IS_RGB(i) (GST_VIDEO_FORMAT_INFO_IS_RGB((i)->finfo))
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#define GST_VIDEO_INFO_IS_GRAY(i) (GST_VIDEO_FORMAT_INFO_IS_GRAY((i)->finfo))
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#define GST_VIDEO_INFO_HAS_ALPHA(i) (GST_VIDEO_FORMAT_INFO_HAS_ALPHA((i)->finfo))
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#define GST_VIDEO_INFO_INTERLACE_MODE(i) ((i)->interlace_mode)
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#define GST_VIDEO_INFO_IS_INTERLACED(i) ((i)->interlace_mode != GST_VIDEO_INTERLACE_MODE_PROGRESSIVE)
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#define GST_VIDEO_INFO_FIELD_ORDER(i) ((i)->ABI.abi.field_order)
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#define GST_VIDEO_INFO_FLAGS(i) ((i)->flags)
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#define GST_VIDEO_INFO_WIDTH(i) ((i)->width)
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#define GST_VIDEO_INFO_HEIGHT(i) ((i)->height)
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/**
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* GST_VIDEO_INFO_FIELD_HEIGHT:
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*
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* The height of a field. It's the height of the full frame unless split-field
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* (alternate) interlacing is in use.
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*
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* Since: 1.16.
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*/
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#define GST_VIDEO_INFO_FIELD_HEIGHT(i) ((i)->interlace_mode == GST_VIDEO_INTERLACE_MODE_ALTERNATE? (i)->height / 2 : (i)->height)
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#define GST_VIDEO_INFO_SIZE(i) ((i)->size)
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#define GST_VIDEO_INFO_VIEWS(i) ((i)->views)
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#define GST_VIDEO_INFO_PAR_N(i) ((i)->par_n)
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#define GST_VIDEO_INFO_PAR_D(i) ((i)->par_d)
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#define GST_VIDEO_INFO_FPS_N(i) ((i)->fps_n)
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#define GST_VIDEO_INFO_FIELD_RATE_N(i) ((GST_VIDEO_INFO_INTERLACE_MODE ((i)) == \
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GST_VIDEO_INTERLACE_MODE_ALTERNATE) ? \
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(i)->fps_n * 2 : (i)->fps_n)
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#define GST_VIDEO_INFO_FPS_D(i) ((i)->fps_d)
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#define GST_VIDEO_INFO_COLORIMETRY(i) ((i)->colorimetry)
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#define GST_VIDEO_INFO_CHROMA_SITE(i) ((i)->chroma_site)
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#define GST_VIDEO_INFO_MULTIVIEW_MODE(i) ((i)->ABI.abi.multiview_mode)
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#define GST_VIDEO_INFO_MULTIVIEW_FLAGS(i) ((i)->ABI.abi.multiview_flags)
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/* dealing with GstVideoInfo flags */
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#define GST_VIDEO_INFO_FLAG_IS_SET(i,flag) ((GST_VIDEO_INFO_FLAGS(i) & (flag)) == (flag))
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#define GST_VIDEO_INFO_FLAG_SET(i,flag) (GST_VIDEO_INFO_FLAGS(i) |= (flag))
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#define GST_VIDEO_INFO_FLAG_UNSET(i,flag) (GST_VIDEO_INFO_FLAGS(i) &= ~(flag))
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/* dealing with planes */
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#define GST_VIDEO_INFO_N_PLANES(i) (GST_VIDEO_FORMAT_INFO_N_PLANES((i)->finfo))
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#define GST_VIDEO_INFO_PLANE_OFFSET(i,p) ((i)->offset[p])
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#define GST_VIDEO_INFO_PLANE_STRIDE(i,p) ((i)->stride[p])
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/* dealing with components */
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#define GST_VIDEO_INFO_N_COMPONENTS(i) GST_VIDEO_FORMAT_INFO_N_COMPONENTS((i)->finfo)
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#define GST_VIDEO_INFO_COMP_DEPTH(i,c) GST_VIDEO_FORMAT_INFO_DEPTH((i)->finfo,(c))
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#define GST_VIDEO_INFO_COMP_DATA(i,d,c) GST_VIDEO_FORMAT_INFO_DATA((i)->finfo,d,(c))
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#define GST_VIDEO_INFO_COMP_OFFSET(i,c) GST_VIDEO_FORMAT_INFO_OFFSET((i)->finfo,(i)->offset,(c))
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#define GST_VIDEO_INFO_COMP_STRIDE(i,c) GST_VIDEO_FORMAT_INFO_STRIDE((i)->finfo,(i)->stride,(c))
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#define GST_VIDEO_INFO_COMP_WIDTH(i,c) GST_VIDEO_FORMAT_INFO_SCALE_WIDTH((i)->finfo,(c),(i)->width)
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#define GST_VIDEO_INFO_COMP_HEIGHT(i,c) GST_VIDEO_FORMAT_INFO_SCALE_HEIGHT((i)->finfo,(c),GST_VIDEO_INFO_FIELD_HEIGHT(i))
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#define GST_VIDEO_INFO_COMP_PLANE(i,c) GST_VIDEO_FORMAT_INFO_PLANE((i)->finfo,(c))
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#define GST_VIDEO_INFO_COMP_PSTRIDE(i,c) GST_VIDEO_FORMAT_INFO_PSTRIDE((i)->finfo,(c))
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#define GST_VIDEO_INFO_COMP_POFFSET(i,c) GST_VIDEO_FORMAT_INFO_POFFSET((i)->finfo,(c))
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GST_VIDEO_API
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GstVideoInfo * gst_video_info_new (void);
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GST_VIDEO_API
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void gst_video_info_init (GstVideoInfo *info);
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GST_VIDEO_API
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GstVideoInfo * gst_video_info_copy (const GstVideoInfo *info);
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GST_VIDEO_API
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void gst_video_info_free (GstVideoInfo *info);
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GST_VIDEO_API
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gboolean gst_video_info_set_format (GstVideoInfo *info, GstVideoFormat format,
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guint width, guint height);
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GST_VIDEO_API
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gboolean gst_video_info_set_interlaced_format
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(GstVideoInfo *info,
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GstVideoFormat format,
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GstVideoInterlaceMode mode,
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guint width,
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guint height);
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GST_VIDEO_API
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gboolean gst_video_info_from_caps (GstVideoInfo *info, const GstCaps * caps);
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GST_VIDEO_API
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GstCaps * gst_video_info_to_caps (GstVideoInfo *info);
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GST_VIDEO_API
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gboolean gst_video_info_convert (GstVideoInfo *info,
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GstFormat src_format,
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gint64 src_value,
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GstFormat dest_format,
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gint64 *dest_value);
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GST_VIDEO_API
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gboolean gst_video_info_is_equal (const GstVideoInfo *info,
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const GstVideoInfo *other);
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#include <gst/video/video.h>
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GST_VIDEO_API
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gboolean gst_video_info_align (GstVideoInfo * info, GstVideoAlignment * align);
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstVideoInfo, gst_video_info_free)
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G_END_DECLS
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#endif /* __GST_VIDEO_INFO_H__ */
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