/* * 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, 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 "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; }; GST_ELEMENT_REGISTER_DECLARE (uvch264src); G_END_DECLS #endif /* __GST_UVC_H264_SRC_H__ */