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119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/* GStreamer
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* Copyright (C) 2008 David Schleef <ds@schleef.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef _GST_BASE_VIDEO_CODEC_H_
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#define _GST_BASE_VIDEO_CODEC_H_
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#ifndef GST_USE_UNSTABLE_API
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#warning "GstBaseVideoCodec is unstable API and may change in future."
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#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
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#endif
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#include <gst/gst.h>
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#include <gst/video/gstbasevideoutils.h>
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G_BEGIN_DECLS
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#define GST_TYPE_BASE_VIDEO_CODEC \
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(gst_base_video_codec_get_type())
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#define GST_BASE_VIDEO_CODEC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_VIDEO_CODEC,GstBaseVideoCodec))
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#define GST_BASE_VIDEO_CODEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_VIDEO_CODEC,GstBaseVideoCodecClass))
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#define GST_BASE_VIDEO_CODEC_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_VIDEO_CODEC,GstBaseVideoCodecClass))
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#define GST_IS_BASE_VIDEO_CODEC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_VIDEO_CODEC))
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#define GST_IS_BASE_VIDEO_CODEC_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_VIDEO_CODEC))
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/**
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* GST_BASE_VIDEO_CODEC_SINK_NAME:
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*
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* The name of the templates for the sink pad.
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*/
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#define GST_BASE_VIDEO_CODEC_SINK_NAME "sink"
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/**
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* GST_BASE_VIDEO_CODEC_SRC_NAME:
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*
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* The name of the templates for the source pad.
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*/
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#define GST_BASE_VIDEO_CODEC_SRC_NAME "src"
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/**
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* GST_BASE_VIDEO_CODEC_SRC_PAD:
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* @obj: base video codec instance
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*
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* Gives the pointer to the source #GstPad object of the element.
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*/
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#define GST_BASE_VIDEO_CODEC_SRC_PAD(obj) (((GstBaseVideoCodec *) (obj))->srcpad)
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/**
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* GST_BASE_VIDEO_CODEC_SINK_PAD:
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* @obj: base video codec instance
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*
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* Gives the pointer to the sink #GstPad object of the element.
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*/
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#define GST_BASE_VIDEO_CODEC_SINK_PAD(obj) (((GstBaseVideoCodec *) (obj))->sinkpad)
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/**
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* GST_BASE_VIDEO_CODEC_FLOW_NEED_DATA:
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*
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*/
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#define GST_BASE_VIDEO_CODEC_FLOW_NEED_DATA GST_FLOW_CUSTOM_SUCCESS
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typedef struct _GstBaseVideoCodec GstBaseVideoCodec;
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typedef struct _GstBaseVideoCodecClass GstBaseVideoCodecClass;
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struct _GstBaseVideoCodec
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{
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GstElement element;
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/*< private >*/
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GstPad *sinkpad;
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GstPad *srcpad;
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guint64 system_frame_number;
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};
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struct _GstBaseVideoCodecClass
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{
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GstElementClass element_class;
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gboolean (*start) (GstBaseVideoCodec *codec);
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gboolean (*stop) (GstBaseVideoCodec *codec);
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gboolean (*reset) (GstBaseVideoCodec *codec);
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GstFlowReturn (*parse_data) (GstBaseVideoCodec *codec, gboolean at_eos);
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int (*scan_for_sync) (GstAdapter *adapter, gboolean at_eos,
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int offset, int n);
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GstFlowReturn (*shape_output) (GstBaseVideoCodec *codec, GstVideoFrame *frame);
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GstCaps *(*get_caps) (GstBaseVideoCodec *codec);
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};
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GType gst_base_video_codec_get_type (void);
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GstVideoFrame * gst_base_video_codec_new_frame (GstBaseVideoCodec *base_video_codec);
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void gst_base_video_codec_free_frame (GstVideoFrame *frame);
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G_END_DECLS
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#endif
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