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