gstreamer/gst/videocrop/gstvideocrop.h
Nicolas Dufresne 36f1a9bce1 videocrop: Make sure new crop is applied
Since "basetransform: Fix caps equality check" commit a7f357,
set_info() will not be called anymore if crop didn't change
the caps. This is fixed by setting "need_update" boolean when
cropping properties has been changed, and then applying these
if they where not applied before rendering the next frame. This
patch also fixed the locking, dropping un-needed custom lock,
and no holding needless lock while doing the operation as we
already hold the streaming lock.

https://bugzilla.gnome.org/show_bug.cgi?id=740787
2014-12-15 18:27:09 -05:00

83 lines
2.3 KiB
C

/* GStreamer video frame cropping
* Copyright (C) 2006 Tim-Philipp Müller <tim centricular 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_VIDEO_CROP_H__
#define __GST_VIDEO_CROP_H__
#include <gst/video/gstvideofilter.h>
G_BEGIN_DECLS
#define GST_TYPE_VIDEO_CROP \
(gst_video_crop_get_type())
#define GST_VIDEO_CROP(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_CROP,GstVideoCrop))
#define GST_VIDEO_CROP_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_CROP,GstVideoCropClass))
#define GST_IS_VIDEO_CROP(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_CROP))
#define GST_IS_VIDEO_CROP_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_CROP))
typedef enum {
VIDEO_CROP_PIXEL_FORMAT_PACKED_SIMPLE = 0, /* RGBx, AYUV */
VIDEO_CROP_PIXEL_FORMAT_PACKED_COMPLEX, /* UYVY, YVYU */
VIDEO_CROP_PIXEL_FORMAT_PLANAR, /* I420, YV12 */
VIDEO_CROP_PIXEL_FORMAT_SEMI_PLANAR /* NV12, NV21 */
} VideoCropPixelFormat;
typedef struct _GstVideoCropImageDetails GstVideoCropImageDetails;
typedef struct _GstVideoCrop GstVideoCrop;
typedef struct _GstVideoCropClass GstVideoCropClass;
struct _GstVideoCrop
{
GstVideoFilter parent;
/*< private >*/
gint prop_left;
gint prop_right;
gint prop_top;
gint prop_bottom;
gboolean need_update;
GstVideoInfo in_info;
GstVideoInfo out_info;
gint crop_left;
gint crop_right;
gint crop_top;
gint crop_bottom;
VideoCropPixelFormat packing;
gint macro_y_off;
};
struct _GstVideoCropClass
{
GstVideoFilterClass parent_class;
};
GType gst_video_crop_get_type (void);
G_END_DECLS
#endif /* __GST_VIDEO_CROP_H__ */