gstreamer/subprojects/gst-plugins-bad/sys/uvch264/gstuvch264_mjpgdemux.h

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/* 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.
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*/
#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;
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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;};
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struct _GstUvcH264MjpgDemuxClass {
GstElementClass parent_class;
};
GType gst_uvc_h264_mjpg_demux_get_type (void);
GST_ELEMENT_REGISTER_DECLARE (uvch264mjpgdemux);
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G_END_DECLS
#endif /* __GST_UVC_H264_MJPG_DEMUX_H__ */