mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-10 03:19:40 +00:00
119 lines
3.6 KiB
C
119 lines
3.6 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_CODEC_H_
|
|
#define _GST_BASE_VIDEO_CODEC_H_
|
|
|
|
#ifndef GST_USE_UNSTABLE_API
|
|
#warning "GstBaseVideoCodec is unstable API and may change in future."
|
|
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
|
|
#endif
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/video/gstbasevideoutils.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_BASE_VIDEO_CODEC \
|
|
(gst_base_video_codec_get_type())
|
|
#define GST_BASE_VIDEO_CODEC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_VIDEO_CODEC,GstBaseVideoCodec))
|
|
#define GST_BASE_VIDEO_CODEC_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_VIDEO_CODEC,GstBaseVideoCodecClass))
|
|
#define GST_BASE_VIDEO_CODEC_GET_CLASS(obj) \
|
|
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_VIDEO_CODEC,GstBaseVideoCodecClass))
|
|
#define GST_IS_BASE_VIDEO_CODEC(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_VIDEO_CODEC))
|
|
#define GST_IS_BASE_VIDEO_CODEC_CLASS(obj) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_VIDEO_CODEC))
|
|
|
|
/**
|
|
* GST_BASE_VIDEO_CODEC_SINK_NAME:
|
|
*
|
|
* The name of the templates for the sink pad.
|
|
*/
|
|
#define GST_BASE_VIDEO_CODEC_SINK_NAME "sink"
|
|
/**
|
|
* GST_BASE_VIDEO_CODEC_SRC_NAME:
|
|
*
|
|
* The name of the templates for the source pad.
|
|
*/
|
|
#define GST_BASE_VIDEO_CODEC_SRC_NAME "src"
|
|
|
|
/**
|
|
* GST_BASE_VIDEO_CODEC_SRC_PAD:
|
|
* @obj: base video codec instance
|
|
*
|
|
* Gives the pointer to the source #GstPad object of the element.
|
|
*/
|
|
#define GST_BASE_VIDEO_CODEC_SRC_PAD(obj) (((GstBaseVideoCodec *) (obj))->srcpad)
|
|
|
|
/**
|
|
* GST_BASE_VIDEO_CODEC_SINK_PAD:
|
|
* @obj: base video codec instance
|
|
*
|
|
* Gives the pointer to the sink #GstPad object of the element.
|
|
*/
|
|
#define GST_BASE_VIDEO_CODEC_SINK_PAD(obj) (((GstBaseVideoCodec *) (obj))->sinkpad)
|
|
|
|
/**
|
|
* GST_BASE_VIDEO_CODEC_FLOW_NEED_DATA:
|
|
*
|
|
*/
|
|
#define GST_BASE_VIDEO_CODEC_FLOW_NEED_DATA GST_FLOW_CUSTOM_SUCCESS
|
|
|
|
typedef struct _GstBaseVideoCodec GstBaseVideoCodec;
|
|
typedef struct _GstBaseVideoCodecClass GstBaseVideoCodecClass;
|
|
|
|
struct _GstBaseVideoCodec
|
|
{
|
|
GstElement element;
|
|
|
|
/*< private >*/
|
|
GstPad *sinkpad;
|
|
GstPad *srcpad;
|
|
|
|
guint64 system_frame_number;
|
|
};
|
|
|
|
struct _GstBaseVideoCodecClass
|
|
{
|
|
GstElementClass element_class;
|
|
|
|
gboolean (*start) (GstBaseVideoCodec *codec);
|
|
gboolean (*stop) (GstBaseVideoCodec *codec);
|
|
gboolean (*reset) (GstBaseVideoCodec *codec);
|
|
GstFlowReturn (*parse_data) (GstBaseVideoCodec *codec, gboolean at_eos);
|
|
int (*scan_for_sync) (GstAdapter *adapter, gboolean at_eos,
|
|
int offset, int n);
|
|
GstFlowReturn (*shape_output) (GstBaseVideoCodec *codec, GstVideoFrame *frame);
|
|
GstCaps *(*get_caps) (GstBaseVideoCodec *codec);
|
|
|
|
};
|
|
|
|
GType gst_base_video_codec_get_type (void);
|
|
|
|
GstVideoFrame * gst_base_video_codec_new_frame (GstBaseVideoCodec *base_video_codec);
|
|
void gst_base_video_codec_free_frame (GstVideoFrame *frame);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|
|
|