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/*
* GStreamer
*
* Copyright (C) 2012 Cisco Systems, Inc.
* Author: Youness Alaoui <youness.alaoui@collabora.co.uk>
*
* 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_UVC_H264_SRC_H__
#define __GST_UVC_H264_SRC_H__
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gst/gst.h>
#include <gst/basecamerabinsrc/gstbasecamerasrc.h>
#include <libusb.h>
#include "uvc_h264.h"
G_BEGIN_DECLS
#define GST_TYPE_UVC_H264_SRC \
(gst_uvc_h264_src_get_type())
#define GST_UVC_H264_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_UVC_H264_SRC, GstUvcH264Src))
#define GST_UVC_H264_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_UVC_H264_SRC, GstUvcH264SrcClass))
#define GST_IS_UVC_H264_SRC(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_UVC_H264_SRC))
#define GST_IS_UVC_H264_SRC_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_UVC_H264_SRC))
GType gst_uvc_h264_src_get_type (void);
typedef struct _GstUvcH264Src GstUvcH264Src;
typedef struct _GstUvcH264SrcClass GstUvcH264SrcClass;
enum GstVideoRecordingStatus {
GST_VIDEO_RECORDING_STATUS_DONE,
GST_VIDEO_RECORDING_STATUS_STARTING,
GST_VIDEO_RECORDING_STATUS_RUNNING,
GST_VIDEO_RECORDING_STATUS_FINISHING
};
enum {
QP_I_FRAME = 0,
QP_P_FRAME,
QP_B_FRAME,
QP_FRAMES
};
typedef enum {
UVC_H264_SRC_FORMAT_NONE,
UVC_H264_SRC_FORMAT_JPG,
UVC_H264_SRC_FORMAT_H264,
UVC_H264_SRC_FORMAT_RAW
} GstUvcH264SrcFormat;
/**
* GstUcH264Src:
*
*/
struct _GstUvcH264Src
{
GstBaseCameraSrc parent;
GstPad *vfsrc;
GstPad *imgsrc;
GstPad *vidsrc;
/* source elements */
GstElement *v4l2_src;
GstElement *mjpg_demux;
GstElement *jpeg_dec;
GstElement *vid_colorspace;
GstElement *vf_colorspace;
GstUvcH264SrcFormat main_format;
guint16 main_width;
guint16 main_height;
guint32 main_frame_interval;
UvcH264StreamFormat main_stream_format;
guint16 main_profile;
GstUvcH264SrcFormat secondary_format;
guint16 secondary_width;
guint16 secondary_height;
guint32 secondary_frame_interval;
int v4l2_fd;
guint8 h264_unit_id;
libusb_context *usb_ctx;
GstPadEventFunction srcpad_event_func;
GstEvent *key_unit_event;
GstSegment segment;
gboolean started;
/* When restarting the source */
gboolean reconfiguring;
gboolean vid_newseg;
gboolean vf_newseg;
gchar *colorspace_name;
gchar *jpeg_decoder_name;
int num_clock_samples;
/* v4l2src proxied properties */
guint32 num_buffers;
gchar *device;
/* Static controls */
guint32 initial_bitrate;
guint16 slice_units;
UvcH264SliceMode slice_mode;
guint16 iframe_period;
UvcH264UsageType usage_type;
UvcH264Entropy entropy;
gboolean enable_sei;
guint8 num_reorder_frames;
gboolean preview_flipped;
guint16 leaky_bucket_size;
/* Dynamic controls */
UvcH264RateControl rate_control;
gboolean fixed_framerate;
guint8 level_idc;
guint32 peak_bitrate;
guint32 average_bitrate;
gint8 min_qp[QP_FRAMES];
gint8 max_qp[QP_FRAMES];
guint8 ltr_buffer_size;
guint8 ltr_encoder_control;
};
/**
* GstUvcH264SrcClass:
*
*/
struct _GstUvcH264SrcClass
{
GstBaseCameraSrcClass parent;
};
#endif /* __GST_UVC_H264_SRC_H__ */
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