gstreamer/gst-libs/gst/video/gstbasevideoencoder.h

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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_ENCODER_H_
#define _GST_BASE_VIDEO_ENCODER_H_
#ifndef GST_USE_UNSTABLE_API
#warning "GstBaseVideoEncoder is unstable API and may change in future."
#warning "You can define GST_USE_UNSTABLE_API to avoid this warning."
#endif
#include <gst/video/gstbasevideocodec.h>
#include <gst/video/gstbasevideoutils.h>
G_BEGIN_DECLS
#define GST_TYPE_BASE_VIDEO_ENCODER \
(gst_base_video_encoder_get_type())
#define GST_BASE_VIDEO_ENCODER(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_VIDEO_ENCODER,GstBaseVideoEncoder))
#define GST_BASE_VIDEO_ENCODER_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_VIDEO_ENCODER,GstBaseVideoEncoderClass))
#define GST_BASE_VIDEO_ENCODER_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_VIDEO_ENCODER,GstBaseVideoEncoderClass))
#define GST_IS_BASE_VIDEO_ENCODER(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_VIDEO_ENCODER))
#define GST_IS_BASE_VIDEO_ENCODER_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_VIDEO_ENCODER))
/**
* GST_BASE_VIDEO_ENCODER_SINK_NAME:
*
* The name of the templates for the sink pad.
*/
#define GST_BASE_VIDEO_ENCODER_SINK_NAME "sink"
/**
* GST_BASE_VIDEO_ENCODER_SRC_NAME:
*
* The name of the templates for the source pad.
*/
#define GST_BASE_VIDEO_ENCODER_SRC_NAME "src"
typedef struct _GstBaseVideoEncoder GstBaseVideoEncoder;
typedef struct _GstBaseVideoEncoderClass GstBaseVideoEncoderClass;
struct _GstBaseVideoEncoder
{
GstBaseVideoCodec base_video_codec;
/*< private >*/
GList *frames;
GstVideoState state;
GstSegment segment;
gboolean sink_clipping;
guint64 presentation_frame_number;
guint64 system_frame_number;
int distance_from_sync;
GstCaps *caps;
gboolean set_output_caps;
gint64 min_latency;
gint64 max_latency;
};
struct _GstBaseVideoEncoderClass
{
GstBaseVideoCodecClass base_video_codec_class;
gboolean (*set_format) (GstBaseVideoEncoder *coder, GstVideoState *state);
gboolean (*start) (GstBaseVideoEncoder *coder);
gboolean (*stop) (GstBaseVideoEncoder *coder);
gboolean (*finish) (GstBaseVideoEncoder *coder);
gboolean (*handle_frame) (GstBaseVideoEncoder *coder, GstVideoFrame *frame);
GstFlowReturn (*shape_output) (GstBaseVideoEncoder *coder, GstVideoFrame *frame);
GstCaps *(*get_caps) (GstBaseVideoEncoder *coder);
};
GType gst_base_video_encoder_get_type (void);
int gst_base_video_encoder_get_width (GstBaseVideoEncoder *coder);
int gst_base_video_encoder_get_height (GstBaseVideoEncoder *coder);
const GstVideoState *gst_base_video_encoder_get_state (GstBaseVideoEncoder *coder);
guint64 gst_base_video_encoder_get_timestamp_offset (GstBaseVideoEncoder *coder);
GstVideoFrame *gst_base_video_encoder_get_frame (GstBaseVideoEncoder *coder,
int frame_number);
GstVideoFrame *gst_base_video_encoder_get_oldest_frame (GstBaseVideoEncoder *coder);
GstFlowReturn gst_base_video_encoder_finish_frame (GstBaseVideoEncoder *base_video_encoder,
GstVideoFrame *frame);
GstFlowReturn gst_base_video_encoder_end_of_stream (GstBaseVideoEncoder *base_video_encoder,
GstBuffer *buffer);
void gst_base_video_encoder_set_latency (GstBaseVideoEncoder *base_video_encoder,
GstClockTime min_latency, GstClockTime max_latency);
void gst_base_video_encoder_set_latency_fields (GstBaseVideoEncoder *base_video_encoder,
int n_fields);
G_END_DECLS
#endif