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91cf5ac69f
This is useful to ensure that the offsets and strides are computed if only width, height, format etc. in the property config are set. https://bugzilla.gnome.org/show_bug.cgi?id=769797
118 lines
3.8 KiB
C
118 lines
3.8 KiB
C
/* GStreamer
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* Copyright (C) <2016> Carlos Rafael Giani <dv at pseudoterminal dot org>
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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_RAW_VIDEO_PARSE_H__
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#define __GST_RAW_VIDEO_PARSE_H__
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#include <gst/gst.h>
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#include <gst/video/video.h>
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#include "gstrawbaseparse.h"
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G_BEGIN_DECLS
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#define GST_TYPE_RAW_VIDEO_PARSE \
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(gst_raw_video_parse_get_type())
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#define GST_RAW_VIDEO_PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_RAW_VIDEO_PARSE, GstRawVideoParse))
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#define GST_RAW_VIDEO_PARSE_CAST(obj) \
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((GstRawVideoParse *)(obj))
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#define GST_RAW_VIDEO_PARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_RAW_VIDEO_PARSE, GstRawVideoParseClass))
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#define GST_IS_RAW_VIDEO_PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_RAW_VIDEO_PARSE))
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#define GST_IS_RAW_VIDEO_PARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_RAW_VIDEO_PARSE))
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typedef struct _GstRawVideoParseConfig GstRawVideoParseConfig;
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typedef struct _GstRawVideoParse GstRawVideoParse;
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typedef struct _GstRawVideoParseClass GstRawVideoParseClass;
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/* Contains information about the video frame format. */
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struct _GstRawVideoParseConfig
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{
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/* If TRUE, then this configuration is ready to use */
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gboolean ready;
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/* FIXME: These values should not be necessary, since there's
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* GstVideoInfo. However, setting these values in the video
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* info independently is currently difficult. For example,
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* setting the video format requires the gst_video_info_set_format()
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* function, but this function also overwrites plane strides
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* and offsets. */
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gint width, height;
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GstVideoFormat format;
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gint pixel_aspect_ratio_n, pixel_aspect_ratio_d;
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gint framerate_n, framerate_d;
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gboolean interlaced;
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gsize plane_offsets[GST_VIDEO_MAX_PLANES];
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gint plane_strides[GST_VIDEO_MAX_PLANES];
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/* If TRUE, then TFF flags are added to outgoing buffers and
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* their video metadata */
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gboolean top_field_first;
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/* Distance between the start of each frame, in bytes. If this value
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* is larger than the actual size of a frame, then the extra bytes
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* are skipped. For example, with frames that have 115200 bytes, a
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* frame_stride value of 120000 means that 4800 trailing bytes are
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* skipped after the 115200 frame bytes. This is useful to skip
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* metadata in between frames. */
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guint frame_stride;
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GstVideoInfo info;
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gboolean custom_plane_strides;
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};
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struct _GstRawVideoParse
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{
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GstRawBaseParse parent;
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/*< private > */
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/* Configuration controlled by the object properties. Its ready value
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* is set to TRUE from the start, so it can be used right away.
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*/
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GstRawVideoParseConfig properties_config;
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/* Configuration controlled by the sink caps. Its ready value is
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* initially set to FALSE until valid sink caps come in. It is set to
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* FALSE again when the stream-start event is observed.
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*/
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GstRawVideoParseConfig sink_caps_config;
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/* Currently active configuration. Points either to properties_config
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* or to sink_caps_config. This is never NULL. */
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GstRawVideoParseConfig *current_config;
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};
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struct _GstRawVideoParseClass
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{
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GstRawBaseParseClass parent_class;
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};
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GType gst_raw_video_parse_get_type (void);
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G_END_DECLS
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#endif
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