gstreamer/gst-libs/gst/video/gstbasevideoparse.h
2009-05-15 16:18:58 -07:00

136 lines
4.3 KiB
C

/* GStreamer
* Copyright (C) 2008 David Schleef <ds@schleef.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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef _GST_BASE_VIDEO_PARSE_H_
#define _GST_BASE_VIDEO_PARSE_H_
#include <gst/video/gstbasevideocodec.h>
#include <gst/video/gstbasevideoutils.h>
G_BEGIN_DECLS
#define GST_TYPE_BASE_VIDEO_PARSE \
(gst_base_video_parse_get_type())
#define GST_BASE_VIDEO_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_VIDEO_PARSE,GstBaseVideoParse))
#define GST_BASE_VIDEO_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_VIDEO_PARSE,GstBaseVideoParseClass))
#define GST_BASE_VIDEO_PARSE_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_VIDEO_PARSE,GstBaseVideoParseClass))
#define GST_IS_BASE_VIDEO_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_VIDEO_PARSE))
#define GST_IS_BASE_VIDEO_PARSE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_VIDEO_PARSE))
/**
* GST_BASE_VIDEO_PARSE_SINK_NAME:
*
* The name of the templates for the sink pad.
*/
#define GST_BASE_VIDEO_PARSE_SINK_NAME "sink"
/**
* GST_BASE_VIDEO_PARSE_SRC_NAME:
*
* The name of the templates for the source pad.
*/
#define GST_BASE_VIDEO_PARSE_SRC_NAME "src"
/**
* GST_BASE_VIDEO_PARSE_FLOW_NEED_DATA:
*
*/
#define GST_BASE_VIDEO_PARSE_FLOW_NEED_DATA GST_FLOW_CUSTOM_SUCCESS
typedef struct _GstBaseVideoParse GstBaseVideoParse;
typedef struct _GstBaseVideoParseClass GstBaseVideoParseClass;
struct _GstBaseVideoParse
{
GstBaseVideoCodec base_video_codec;
/*< private >*/
GstAdapter *input_adapter;
GstAdapter *output_adapter;
int reorder_depth;
gboolean have_sync;
gboolean discont;
gboolean started;
GstVideoFrame *current_frame;
GstVideoState state;
int distance_from_sync;
gboolean sink_clipping;
guint64 presentation_frame_number;
guint64 system_frame_number;
GstCaps *caps;
gboolean set_output_caps;
GstClockTime last_timestamp;
gint64 timestamp_offset;
};
struct _GstBaseVideoParseClass
{
GstBaseVideoCodecClass base_video_codec_class;
gboolean (*start) (GstBaseVideoParse *parse);
gboolean (*stop) (GstBaseVideoParse *parse);
gboolean (*reset) (GstBaseVideoParse *parse);
GstFlowReturn (*parse_data) (GstBaseVideoParse *parse, gboolean at_eos);
int (*scan_for_sync) (GstAdapter *adapter, gboolean at_eos,
int offset, int n);
GstFlowReturn (*shape_output) (GstBaseVideoParse *parse, GstVideoFrame *frame);
GstCaps *(*get_caps) (GstBaseVideoParse *parse);
};
GType gst_base_video_parse_get_type (void);
int gst_base_video_parse_get_width (GstBaseVideoParse *parse);
int gst_base_video_parse_get_height (GstBaseVideoParse *parse);
GstVideoState *gst_base_video_parse_get_state (GstBaseVideoParse *parse);
void gst_base_video_parse_set_state (GstBaseVideoParse *parse,
GstVideoState *state);
guint64 gst_base_video_parse_get_timestamp_offset (GstBaseVideoParse *parse);
gboolean gst_base_video_parse_set_src_caps (GstBaseVideoParse *base_video_parse, GstCaps *caps);
GstFlowReturn gst_base_video_parse_end_of_stream (GstBaseVideoParse *base_video_parse,
GstBuffer *buffer);
void gst_base_video_parse_lost_sync (GstBaseVideoParse *base_video_parse);
GstVideoFrame * gst_base_video_parse_get_frame (GstBaseVideoParse *base_video_parse);
void gst_base_video_parse_add_to_frame (GstBaseVideoParse *base_video_parse, int n_bytes);
GstFlowReturn gst_base_video_parse_finish_frame (GstBaseVideoParse *base_video_parse);
void gst_base_video_parse_set_sync_point (GstBaseVideoParse *base_video_parse);
GstFlowReturn gst_base_video_parse_push (GstBaseVideoParse *base_video_parse,
GstBuffer *buffer);
G_END_DECLS
#endif