mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-23 16:50:47 +00:00
339635bb15
Original commit message from CVS: Move all the several v4l/v4l2 plugins in one v4l and one v4l2 plugin
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/* G-Streamer hardware MJPEG video sink plugin
|
|
* Copyright (C) 2001-2002 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
*
|
|
* 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_V4LMJPEGSINK_H__
|
|
#define __GST_V4LMJPEGSINK_H__
|
|
|
|
#include <gstv4lelement.h>
|
|
#include <sys/time.h>
|
|
#include <videodev_mjpeg.h>
|
|
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
#define GST_TYPE_V4LMJPEGSINK \
|
|
(gst_v4lmjpegsink_get_type())
|
|
#define GST_V4LMJPEGSINK(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_V4LMJPEGSINK,GstV4lMjpegSink))
|
|
#define GST_V4LMJPEGSINK_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_V4LMJPEGSINK,GstV4lMjpegSinkClass))
|
|
#define GST_IS_V4LMJPEGSINK(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_V4LMJPEGSINK))
|
|
#define GST_IS_V4LMJPEGSINK_CLASS(obj) \
|
|
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_V4LMJPEGSINK))
|
|
|
|
typedef struct _GstV4lMjpegSink GstV4lMjpegSink;
|
|
typedef struct _GstV4lMjpegSinkClass GstV4lMjpegSinkClass;
|
|
|
|
struct _GstV4lMjpegSink {
|
|
GstV4lElement v4lelement;
|
|
|
|
/* the sink pas */
|
|
GstPad *sinkpad;
|
|
|
|
/* frame properties for common players */
|
|
gint frames_displayed;
|
|
guint64 frame_time;
|
|
|
|
/* system clock object */
|
|
GstClock *clock;
|
|
|
|
/* buffer/capture info */
|
|
struct mjpeg_sync bsync;
|
|
struct mjpeg_requestbuffers breq;
|
|
|
|
/* thread to keep track of synced frames */
|
|
gint8 *isqueued_queued_frames; /* 1 = queued, 0 = unqueued, -1 = error */
|
|
GThread *thread_queued_frames;
|
|
GMutex *mutex_queued_frames;
|
|
GCond **cond_queued_frames;
|
|
gint current_frame;
|
|
|
|
/* something to get our buffers from */
|
|
GstBufferPool *bufferpool;
|
|
|
|
/* width/height/norm of the jpeg stream */
|
|
gint width;
|
|
gint height;
|
|
gint norm;
|
|
|
|
/* cache values */
|
|
gint x_offset;
|
|
gint y_offset;
|
|
|
|
gint numbufs;
|
|
gint bufsize; /* in KB */
|
|
};
|
|
|
|
struct _GstV4lMjpegSinkClass {
|
|
GstV4lElementClass parent_class;
|
|
|
|
/* signals */
|
|
void (*frame_displayed) (GstElement *element);
|
|
void (*have_size) (GstElement *element, guint width, guint height);
|
|
};
|
|
|
|
GType gst_v4lmjpegsink_get_type(void);
|
|
|
|
gboolean gst_v4lmjpegsink_factory_init (GstPlugin *plugin);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif /* __cplusplus */
|
|
|
|
|
|
#endif /* __GST_SDLVIDEOSINK_H__ */
|