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a4221727de
Original commit message from CVS: * gst/videocrop/gstvideocrop.c: (gst_video_crop_class_init), (gst_video_crop_init), (gst_video_crop_get_image_details_from_caps), (gst_video_crop_transform_packed_complex), (gst_video_crop_transform_packed_simple), (gst_video_crop_transform), (gst_video_crop_transform_caps), (gst_video_crop_set_caps), (gst_videocrop_clear_negotiated_caps_locked), (gst_video_crop_set_property): * gst/videocrop/gstvideocrop.h: Handle packed YUV formats (UYVY, YUY2, YUYV) separately; also, fix passthrough mode; lastly, clear negotiated basetransform caps when the cropping changes in order to force renegotiation.
93 lines
2.7 KiB
C
93 lines
2.7 KiB
C
/* GStreamer video frame cropping
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* Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_VIDEO_CROP_H__
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#define __GST_VIDEO_CROP_H__
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#include <gst/base/gstbasetransform.h>
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G_BEGIN_DECLS
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#define GST_TYPE_VIDEO_CROP \
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(gst_video_crop_get_type())
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#define GST_VIDEO_CROP(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VIDEO_CROP,GstVideoCrop))
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#define GST_VIDEO_CROP_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VIDEO_CROP,GstVideoCropClass))
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#define GST_IS_VIDEO_CROP(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VIDEO_CROP))
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#define GST_IS_VIDEO_CROP_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_CROP))
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typedef enum {
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VIDEO_CROP_PIXEL_FORMAT_PACKED_SIMPLE = 0, /* RGBx, AYUV */
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VIDEO_CROP_PIXEL_FORMAT_PACKED_COMPLEX, /* UYVY, YVYU */
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VIDEO_CROP_PIXEL_FORMAT_PLANAR /* I420, YV12 */
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} VideoCropPixelFormat;
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typedef struct _GstVideoCropImageDetails GstVideoCropImageDetails;
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struct _GstVideoCropImageDetails
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{
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/*< private >*/
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VideoCropPixelFormat packing;
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guint width;
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guint height;
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guint size;
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/* for packed RGB and YUV */
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guint stride;
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guint bytes_per_pixel;
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guint8 macro_y_off; /* for YUY2, YVYU, UYVY, Y offset within macropixel in bytes */
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/* for planar YUV */
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guint y_stride, y_off;
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guint u_stride, u_off;
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guint v_stride, v_off;
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};
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typedef struct _GstVideoCrop GstVideoCrop;
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typedef struct _GstVideoCropClass GstVideoCropClass;
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struct _GstVideoCrop
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{
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GstBaseTransform basetransform;
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/*< private >*/
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gboolean noop; /* TRUE if crop_left,_right,_top and _bottom are all 0 */
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gint crop_left;
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gint crop_right;
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gint crop_top;
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gint crop_bottom;
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GstVideoCropImageDetails in; /* details of input image */
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GstVideoCropImageDetails out; /* details of output image */
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};
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struct _GstVideoCropClass
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{
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GstBaseTransformClass basetransform_class;
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};
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G_END_DECLS
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#endif /* __GST_VIDEO_CROP_H__ */
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