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/* 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_DECODER_H_
#define _GST_BASE_VIDEO_DECODER_H_
#include "gstbasevideoutils.h"
#include "gstvideoframe.h"
G_BEGIN_DECLS
#define GST_TYPE_BASE_VIDEO_DECODER (gst_base_video_decoder_get_type())
#define GST_BASE_VIDEO_DECODER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_BASE_VIDEO_DECODER, GstBaseVideoDecoder))
#define GST_BASE_VIDEO_DECODER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_BASE_VIDEO_DECODER, GstBaseVideoDecoderClass))
#define GST_BASE_VIDEO_DECODER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GST_TYPE_BASE_VIDEO_DECODER, GstBaseVideoDecoderClass))
#define GST_IS_BASE_VIDEO_DECODER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_BASE_VIDEO_DECODER))
#define GST_IS_BASE_VIDEO_DECODER_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_BASE_VIDEO_DECODER))
/**
* GST_BASE_VIDEO_DECODER_SINK_NAME:
*
* The name of the templates for the sink pad.
*/
#define GST_BASE_VIDEO_DECODER_SINK_NAME "sink"
/**
* GST_BASE_VIDEO_DECODER_SRC_NAME:
*
* The name of the templates for the source pad.
*/
#define GST_BASE_VIDEO_DECODER_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_DECODER_SRC_PAD(obj) (((GstBaseVideoDecoder *) (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_DECODER_SINK_PAD(obj) (((GstBaseVideoDecoder *) (obj))->sinkpad)
/**
* * GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA:
* *
* */
#define GST_BASE_VIDEO_DECODER_FLOW_NEED_DATA GST_FLOW_CUSTOM_SUCCESS
typedef enum _GstBaseVideoDecoderScanResult GstBaseVideoDecoderScanResult;
enum _GstBaseVideoDecoderScanResult
{
GST_BASE_VIDEO_DECODER_SCAN_RESULT_OK,
GST_BASE_VIDEO_DECODER_SCAN_RESULT_LOST_SYNC,
GST_BASE_VIDEO_DECODER_SCAN_RESULT_NEED_DATA
};
typedef struct _GstBaseVideoDecoder GstBaseVideoDecoder;
typedef struct _GstBaseVideoDecoderClass GstBaseVideoDecoderClass;
struct _GstBaseVideoDecoder
{
GstElement element;
/*< private >*/
GstPad *sinkpad;
GstPad *srcpad;
GstAdapter *input_adapter;
gboolean have_sync;
gboolean discont;
GstVideoState state;
GstSegment segment;
guint64 presentation_frame_number;
guint64 system_frame_number;
GstCaps *caps;
gboolean have_src_caps;
GstVideoFrame *current_frame;
gint distance_from_sync;
gint reorder_depth;
GstClockTime buffer_timestamp;
GstClockTime timestamp_offset;
gdouble proportion;
GstClockTime earliest_time;
guint64 input_offset;
guint64 current_buf_offset;
guint64 prev_buf_offset;
GstClockTime last_timestamp;
guint64 base_picture_number;
gint field_index;
gboolean is_delta_unit;
GList *timestamps;
gboolean have_segment;
/* properties */
gboolean sink_clipping;
gboolean packetized;
};
struct _GstBaseVideoDecoderClass
{
GstElementClass element_class;
gboolean (*start) (GstBaseVideoDecoder *coder);
gboolean (*stop) (GstBaseVideoDecoder *coder);
gboolean (*flush) (GstBaseVideoDecoder *coder);
gboolean (*set_sink_caps) (GstBaseVideoDecoder *base_video_decoder,
GstCaps *caps);
GstPad *(*create_srcpad) (GstBaseVideoDecoder * base_video_decoder,
GstBaseVideoDecoderClass *base_video_decoder_class);
gint (*scan_for_sync) (GstBaseVideoDecoder *coder, GstAdapter *adapter);
GstBaseVideoDecoderScanResult (*scan_for_packet_end)
(GstBaseVideoDecoder *coder, GstAdapter *adapter, guint *size, gboolean at_eos);
GstFlowReturn (*parse_data) (GstBaseVideoDecoder *decoder,
GstBuffer *buf, gboolean at_eos);
GstVideoFrame *(*create_frame) (GstBaseVideoDecoder *coder);
GstFlowReturn (*handle_frame) (GstBaseVideoDecoder *coder, GstVideoFrame *frame,
GstClockTimeDiff deadline);
GstFlowReturn (*shape_output) (GstBaseVideoDecoder *coder,
GstBuffer *buf);
};
GType gst_base_video_decoder_get_type (void);
GstVideoFrame *gst_base_video_decoder_get_current_frame (GstBaseVideoDecoder
*base_video_decoder);
GstVideoFrame *gst_base_video_decoder_get_frame (GstBaseVideoDecoder *coder,
gint frame_number);
GstVideoFrame *gst_base_video_decoder_get_oldest_frame (GstBaseVideoDecoder *coder);
GstFlowReturn gst_base_video_decoder_finish_frame (GstBaseVideoDecoder *base_video_decoder,
GstVideoFrame *frame);
void gst_base_video_decoder_skip_frame (GstBaseVideoDecoder * base_video_decoder,
GstVideoFrame * frame);
GstFlowReturn
gst_base_video_decoder_have_frame (GstBaseVideoDecoder *base_video_decoder,
gboolean include_current_buf, GstVideoFrame **new_frame);
GstVideoState gst_base_video_decoder_get_state (GstBaseVideoDecoder *base_video_decoder);
void gst_base_video_decoder_set_state (GstBaseVideoDecoder *base_video_decoder,
GstVideoState state);
void gst_base_video_decoder_set_src_caps (GstBaseVideoDecoder * base_video_decoder);
void gst_base_video_decoder_lost_sync (GstBaseVideoDecoder *base_video_decoder);
G_END_DECLS
#endif
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