112 lines
3.0 KiB
C
112 lines
3.0 KiB
C
/* GStreamer
|
|
*
|
|
* uvch264_mjpg_demux: a demuxer for muxed stream in UVC H264 compliant MJPG
|
|
*
|
|
* 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 Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser 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_MJPG_DEMUX_H__
|
|
#define __GST_UVC_H264_MJPG_DEMUX_H__
|
|
|
|
#include <gst/gst.h>
|
|
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_UVC_H264_MJPG_DEMUX \
|
|
(gst_uvc_h264_mjpg_demux_get_type())
|
|
#define GST_UVC_H264_MJPG_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj), \
|
|
GST_TYPE_UVC_H264_MJPG_DEMUX, \
|
|
GstUvcH264MjpgDemux))
|
|
#define GST_UVC_H264_MJPG_DEMUX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass), \
|
|
GST_TYPE_UVC_H264_MJPG_DEMUX, \
|
|
GstUvcH264MjpgDemuxClass))
|
|
#define GST_IS_UVC_H264_MJPG_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj), \
|
|
GST_TYPE_UVC_H264_MJPG_DEMUX))
|
|
#define GST_IS_UVC_H264_MJPG_DEMUX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass), \
|
|
GST_TYPE_UVC_H264_MJPG_DEMUX))
|
|
|
|
typedef struct _GstUvcH264MjpgDemux GstUvcH264MjpgDemux;
|
|
typedef struct _GstUvcH264MjpgDemuxClass GstUvcH264MjpgDemuxClass;
|
|
|
|
typedef struct
|
|
{
|
|
guint32 dev_stc;
|
|
guint32 dev_sof;
|
|
GstClockTime host_ts;
|
|
guint32 host_sof;
|
|
} GstUvcH264ClockSample;
|
|
|
|
typedef struct
|
|
{
|
|
guint16 version;
|
|
guint16 header_len;
|
|
guint32 type;
|
|
guint16 width;
|
|
guint16 height;
|
|
guint32 frame_interval;
|
|
guint16 delay;
|
|
guint32 pts;
|
|
} __attribute__ ((packed)) AuxiliaryStreamHeader;
|
|
|
|
struct _GstUvcH264MjpgDemux {
|
|
GstElement element;
|
|
|
|
/* private */
|
|
int device_fd;
|
|
int num_clock_samples;
|
|
GstUvcH264ClockSample *clock_samples;
|
|
int last_sample;
|
|
int num_samples;
|
|
GstPad *sink_pad;
|
|
GstPad *jpeg_pad;
|
|
GstPad *h264_pad;
|
|
GstPad *yuy2_pad;
|
|
GstPad *nv12_pad;
|
|
GstCaps *h264_caps;
|
|
GstCaps *yuy2_caps;
|
|
GstCaps *nv12_caps;
|
|
guint16 h264_width;
|
|
guint16 h264_height;
|
|
guint16 yuy2_width;
|
|
guint16 yuy2_height;
|
|
guint16 nv12_width;
|
|
guint16 nv12_height;
|
|
|
|
/* input segment */
|
|
GstSegment segment;
|
|
GstClockTime last_pts;
|
|
gboolean pts_reordered_warning;};
|
|
|
|
struct _GstUvcH264MjpgDemuxClass {
|
|
GstElementClass parent_class;
|
|
};
|
|
|
|
GType gst_uvc_h264_mjpg_demux_get_type (void);
|
|
|
|
GST_ELEMENT_REGISTER_DECLARE (uvch264mjpgdemux);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_UVC_H264_MJPG_DEMUX_H__ */
|