mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-27 18:50:48 +00:00
d81a6da702
The term stride is confusing here, since the stride is always use to signal the pixel row size of an image (including padding). Also a frame may have a single stride, which adds to the confusion. This patch uses frame-size, which simply indicate the frame size in the case the images have some padding in between. https://bugzilla.gnome.org/show_bug.cgi?id=780053
112 lines
3.8 KiB
C
112 lines
3.8 KiB
C
/* GStreamer
|
|
* Copyright (C) <2016> Carlos Rafael Giani <dv at pseudoterminal dot org>
|
|
*
|
|
* 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_RAW_VIDEO_PARSE_H__
|
|
#define __GST_RAW_VIDEO_PARSE_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/video/video.h>
|
|
#include "gstrawbaseparse.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_RAW_VIDEO_PARSE \
|
|
(gst_raw_video_parse_get_type())
|
|
#define GST_RAW_VIDEO_PARSE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_RAW_VIDEO_PARSE, GstRawVideoParse))
|
|
#define GST_RAW_VIDEO_PARSE_CAST(obj) \
|
|
((GstRawVideoParse *)(obj))
|
|
#define GST_RAW_VIDEO_PARSE_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_RAW_VIDEO_PARSE, GstRawVideoParseClass))
|
|
#define GST_IS_RAW_VIDEO_PARSE(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_RAW_VIDEO_PARSE))
|
|
#define GST_IS_RAW_VIDEO_PARSE_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_RAW_VIDEO_PARSE))
|
|
|
|
typedef struct _GstRawVideoParseConfig GstRawVideoParseConfig;
|
|
typedef struct _GstRawVideoParse GstRawVideoParse;
|
|
typedef struct _GstRawVideoParseClass GstRawVideoParseClass;
|
|
|
|
/* Contains information about the video frame format. */
|
|
struct _GstRawVideoParseConfig
|
|
{
|
|
/* If TRUE, then this configuration is ready to use */
|
|
gboolean ready;
|
|
|
|
/* FIXME: These values should not be necessary, since there's
|
|
* GstVideoInfo. However, setting these values in the video
|
|
* info independently is currently difficult. For example,
|
|
* setting the video format requires the gst_video_info_set_format()
|
|
* function, but this function also overwrites plane strides
|
|
* and offsets. */
|
|
gint width, height;
|
|
GstVideoFormat format;
|
|
gint pixel_aspect_ratio_n, pixel_aspect_ratio_d;
|
|
gint framerate_n, framerate_d;
|
|
gboolean interlaced;
|
|
gsize plane_offsets[GST_VIDEO_MAX_PLANES];
|
|
gint plane_strides[GST_VIDEO_MAX_PLANES];
|
|
|
|
/* If TRUE, then TFF flags are added to outgoing buffers and
|
|
* their video metadata */
|
|
gboolean top_field_first;
|
|
|
|
/* Distance between the start of each frame, in bytes. If this value
|
|
* is larger than the actual size of a frame, then the extra bytes
|
|
* are skipped. For example, with frames that have 115200 bytes, a
|
|
* frame_size value of 120000 means that 4800 trailing bytes are
|
|
* skipped after the 115200 frame bytes. This is useful to skip
|
|
* metadata in between frames. */
|
|
guint frame_size;
|
|
|
|
GstVideoInfo info;
|
|
|
|
gboolean custom_plane_strides;
|
|
};
|
|
|
|
struct _GstRawVideoParse
|
|
{
|
|
GstRawBaseParse parent;
|
|
|
|
/*< private > */
|
|
|
|
/* Configuration controlled by the object properties. Its ready value
|
|
* is set to TRUE from the start, so it can be used right away.
|
|
*/
|
|
GstRawVideoParseConfig properties_config;
|
|
/* Configuration controlled by the sink caps. Its ready value is
|
|
* initially set to FALSE until valid sink caps come in. It is set to
|
|
* FALSE again when the stream-start event is observed.
|
|
*/
|
|
GstRawVideoParseConfig sink_caps_config;
|
|
/* Currently active configuration. Points either to properties_config
|
|
* or to sink_caps_config. This is never NULL. */
|
|
GstRawVideoParseConfig *current_config;
|
|
};
|
|
|
|
struct _GstRawVideoParseClass
|
|
{
|
|
GstRawBaseParseClass parent_class;
|
|
};
|
|
|
|
GType gst_raw_video_parse_get_type (void);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|