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video.h
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video.h
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/* GStreamer
* Copyright (C) <2011> Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_VIDEO_H__
#define __GST_VIDEO_H__
#include <gst/gst.h>
#include <gst/video/video-prelude.h>
typedef struct _GstVideoAlignment GstVideoAlignment;
#include <gst/video/video-format.h>
#include <gst/video/video-color.h>
#include <gst/video/video-dither.h>
#include <gst/video/video-info.h>
#include <gst/video/video-frame.h>
#include <gst/video/video-enumtypes.h>
#include <gst/video/video-converter.h>
#include <gst/video/video-scaler.h>
#include <gst/video/video-multiview.h>
G_BEGIN_DECLS
/**
* GstVideoAlignment:
* @padding_left: extra pixels on the left side
* @padding_right: extra pixels on the right side
* @padding_top: extra pixels on the top
* @padding_bottom: extra pixels on the bottom
* @stride_align: array with extra alignment requirements for the strides
*
* Extra alignment parameters for the memory of video buffers. This
* structure is usually used to configure the bufferpool if it supports the
* #GST_BUFFER_POOL_OPTION_VIDEO_ALIGNMENT.
*/
struct _GstVideoAlignment
{
guint padding_top;
guint padding_bottom;
guint padding_left;
guint padding_right;
guint stride_align[GST_VIDEO_MAX_PLANES];
};
/**
* GstVideoOrientationMethod:
* @GST_VIDEO_ORIENTATION_IDENTITY: Identity (no rotation)
* @GST_VIDEO_ORIENTATION_90R: Rotate clockwise 90 degrees
* @GST_VIDEO_ORIENTATION_180: Rotate 180 degrees
* @GST_VIDEO_ORIENTATION_90L: Rotate counter-clockwise 90 degrees
* @GST_VIDEO_ORIENTATION_HORIZ: Flip horizontally
* @GST_VIDEO_ORIENTATION_VERT: Flip vertically
* @GST_VIDEO_ORIENTATION_UL_LR: Flip across upper left/lower right diagonal
* @GST_VIDEO_ORIENTATION_UR_LL: Flip across upper right/lower left diagonal
* @GST_VIDEO_ORIENTATION_AUTO: Select flip method based on image-orientation tag
* @GST_VIDEO_ORIENTATION_CUSTOM: Current status depends on plugin internal setup
*
* The different video orientation methods.
*
* Since: 1.10
*/
typedef enum {
GST_VIDEO_ORIENTATION_IDENTITY,
GST_VIDEO_ORIENTATION_90R,
GST_VIDEO_ORIENTATION_180,
GST_VIDEO_ORIENTATION_90L,
GST_VIDEO_ORIENTATION_HORIZ,
GST_VIDEO_ORIENTATION_VERT,
GST_VIDEO_ORIENTATION_UL_LR,
GST_VIDEO_ORIENTATION_UR_LL,
GST_VIDEO_ORIENTATION_AUTO,
GST_VIDEO_ORIENTATION_CUSTOM,
} GstVideoOrientationMethod;
/* metadata macros */
/**
* GST_META_TAG_VIDEO_STR:
*
* This metadata is relevant for video streams.
*
* Since: 1.2
*/
#define GST_META_TAG_VIDEO_STR "video"
/**
* GST_META_TAG_VIDEO_ORIENTATION_STR:
*
* This metadata stays relevant as long as video orientation is unchanged.
*
* Since: 1.2
*/
#define GST_META_TAG_VIDEO_ORIENTATION_STR "orientation"
/**
* GST_META_TAG_VIDEO_SIZE_STR:
*
* This metadata stays relevant as long as video size is unchanged.
*
* Since: 1.2
*/
#define GST_META_TAG_VIDEO_SIZE_STR "size"
/**
* GST_META_TAG_VIDEO_COLORSPACE_STR:
*
* This metadata stays relevant as long as video colorspace is unchanged.
*
* Since: 1.2
*/
#define GST_META_TAG_VIDEO_COLORSPACE_STR "colorspace"
GST_VIDEO_API
void gst_video_alignment_reset (GstVideoAlignment *align);
/* some helper functions */
GST_VIDEO_API
gboolean gst_video_calculate_display_ratio (guint * dar_n,
guint * dar_d,
guint video_width,
guint video_height,
guint video_par_n,
guint video_par_d,
guint display_par_n,
guint display_par_d);
GST_VIDEO_API
gboolean gst_video_guess_framerate (GstClockTime duration,
gint * dest_n, gint * dest_d);
/* convert/encode video sample from one format to another */
typedef void (*GstVideoConvertSampleCallback) (GstSample * sample, GError *error, gpointer user_data);
GST_VIDEO_API
void gst_video_convert_sample_async (GstSample * sample,
const GstCaps * to_caps,
GstClockTime timeout,
GstVideoConvertSampleCallback callback,
gpointer user_data,
GDestroyNotify destroy_notify);
GST_VIDEO_API
GstSample * gst_video_convert_sample (GstSample * sample,
const GstCaps * to_caps,
GstClockTime timeout,
GError ** error);
G_END_DECLS
#include <gst/video/colorbalancechannel.h>
#include <gst/video/colorbalance.h>
#include <gst/video/gstvideoaffinetransformationmeta.h>
#include <gst/video/gstvideoaggregator.h>
#include <gst/video/gstvideodecoder.h>
#include <gst/video/gstvideoencoder.h>
#include <gst/video/gstvideofilter.h>
#include <gst/video/gstvideometa.h>
#include <gst/video/gstvideopool.h>
#include <gst/video/gstvideosink.h>
#include <gst/video/gstvideotimecode.h>
#include <gst/video/gstvideoutils.h>
#include <gst/video/navigation.h>
#include <gst/video/video-anc.h>
#include <gst/video/video-blend.h>
#include <gst/video/videodirection.h>
#include <gst/video/video-event.h>
#include <gst/video/video-hdr.h>
#include <gst/video/videoorientation.h>
#include <gst/video/video-overlay-composition.h>
#include <gst/video/videooverlay.h>
#endif /* __GST_VIDEO_H__ */