-/* GStreamer
- * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+/* 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
*
* 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.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+/**
+ * SECTION:element-videocrop
+ * @see_also: #GstVideoBox
+ *
+ * This element crops video frames, meaning it can remove parts of the
+ * picture on the left, right, top or bottom of the picture and output
+ * a smaller picture than the input picture, with the unwanted parts at the
+ * border removed.
+ *
+ * The videocrop element is similar to the videobox element, but its main
+ * goal is to support a multitude of formats as efficiently as possible.
+ * Unlike videbox, it cannot add borders to the picture and unlike videbox
+ * it will always output images in exactly the same format as the input image.
+ *
+ * If there is nothing to crop, the element will operate in pass-through mode.
+ *
+ * Note that no special efforts are made to handle chroma-subsampled formats
+ * in the case of odd-valued cropping and compensate for sub-unit chroma plane
+ * shifts for such formats in the case where the #GstVideoCrop:left or
+ * #GstVideoCrop:top property is set to an odd number. This doesn't matter for
+ * most use cases, but it might matter for yours.
+ *
+ * <refsect2>
+ * <title>Example launch line</title>
+ * |[
+ * gst-launch-1.0 -v videotestsrc ! videocrop top=42 left=1 right=4 bottom=0 ! ximagesink
+ * ]|
+ * </refsect2>
+ */
+
+/* TODO:
+ * - for packed formats, we could avoid memcpy() in case crop_left
+ * and crop_right are 0 and just create a sub-buffer of the input
+ * buffer
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
+
#include <gst/gst.h>
#include <gst/video/video.h>
-#include <string.h>
-
-#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(obj) \
- (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VIDEO_CROP))
-
-typedef struct _GstVideoCrop GstVideoCrop;
-typedef struct _GstVideoCropClass GstVideoCropClass;
-
-struct _GstVideoCrop
-{
- GstElement element;
+#include "gstvideocrop.h"
+#include "gstaspectratiocrop.h"
- /* pads */
- GstPad *sinkpad;
- GstPad *srcpad;
-
- /* caps */
- gint width, height;
- gint crop_left, crop_right, crop_top, crop_bottom;
- gboolean renegotiate_src_caps;
-};
-
-struct _GstVideoCropClass
-{
- GstElementClass parent_class;
-};
-
-/* elementfactory information */
-static GstElementDetails gst_video_crop_details =
-GST_ELEMENT_DETAILS ("video crop filter",
- "Filter/Effect/Video",
- "Crops video into a user defined region",
- "Wim Taymans <wim.taymans@chello.be>");
+#include <string.h>
+GST_DEBUG_CATEGORY_STATIC (videocrop_debug);
+#define GST_CAT_DEFAULT videocrop_debug
-/* VideoCrop args */
enum
{
- ARG_0,
- ARG_LEFT,
- ARG_RIGHT,
- ARG_TOP,
- ARG_BOTTOM
- /* FILL ME */
+ PROP_0,
+ PROP_LEFT,
+ PROP_RIGHT,
+ PROP_TOP,
+ PROP_BOTTOM
};
-static GstStaticPadTemplate gst_video_crop_src_template =
-GST_STATIC_PAD_TEMPLATE ("src",
+/* we support the same caps as aspectratiocrop (sync changes) */
+#define VIDEO_CROP_CAPS \
+ GST_VIDEO_CAPS_MAKE ("{ RGBx, xRGB, BGRx, xBGR, " \
+ "RGBA, ARGB, BGRA, ABGR, RGB, BGR, AYUV, YUY2, " \
+ "YVYU, UYVY, I420, YV12, RGB16, RGB15, GRAY8, " \
+ "NV12, NV21, GRAY16_LE, GRAY16_BE }")
+
+static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
+ GST_STATIC_CAPS (VIDEO_CROP_CAPS)
);
-static GstStaticPadTemplate gst_video_crop_sink_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
+static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
+ GST_STATIC_CAPS (VIDEO_CROP_CAPS)
);
-
-static void gst_video_crop_base_init (gpointer g_class);
-static void gst_video_crop_class_init (GstVideoCropClass * klass);
-static void gst_video_crop_init (GstVideoCrop * video_crop);
+#define gst_video_crop_parent_class parent_class
+G_DEFINE_TYPE (GstVideoCrop, gst_video_crop, GST_TYPE_VIDEO_FILTER);
static void gst_video_crop_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_video_crop_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
-static GstCaps *gst_video_crop_getcaps (GstPad * pad);
-
-static GstPadLinkReturn
-gst_video_crop_link (GstPad * pad, const GstCaps * caps);
-static void gst_video_crop_chain (GstPad * pad, GstData * _data);
-
-static GstStateChangeReturn gst_video_crop_change_state (GstElement * element,
- GstStateChange transition);
+static GstCaps *gst_video_crop_transform_caps (GstBaseTransform * trans,
+ GstPadDirection direction, GstCaps * caps, GstCaps * filter_caps);
+static gboolean gst_video_crop_src_event (GstBaseTransform * trans,
+ GstEvent * event);
+static gboolean gst_video_crop_set_info (GstVideoFilter * vfilter, GstCaps * in,
+ GstVideoInfo * in_info, GstCaps * out, GstVideoInfo * out_info);
+static GstFlowReturn gst_video_crop_transform_frame (GstVideoFilter * vfilter,
+ GstVideoFrame * in_frame, GstVideoFrame * out_frame);
-static GstElementClass *parent_class = NULL;
+static gboolean gst_video_crop_decide_allocation (GstBaseTransform * trans,
+ GstQuery * query);
+static gboolean gst_video_crop_propose_allocation (GstBaseTransform * trans,
+ GstQuery * decide_query, GstQuery * query);
+static GstFlowReturn gst_video_crop_transform_ip (GstBaseTransform * trans,
+ GstBuffer * buf);
-/* static guint gst_video_crop_signals[LAST_SIGNAL] = { 0 }; */
-
-GType
-gst_video_crop_get_type (void)
+static gboolean
+gst_video_crop_src_event (GstBaseTransform * trans, GstEvent * event)
{
- static GType video_crop_type = 0;
-
- if (!video_crop_type) {
- static const GTypeInfo video_crop_info = {
- sizeof (GstVideoCropClass),
- gst_video_crop_base_init,
- NULL,
- (GClassInitFunc) gst_video_crop_class_init,
- NULL,
- NULL,
- sizeof (GstVideoCrop),
- 0,
- (GInstanceInitFunc) gst_video_crop_init,
- };
-
- video_crop_type =
- g_type_register_static (GST_TYPE_ELEMENT, "GstVideoCrop",
- &video_crop_info, 0);
+ GstEvent *new_event;
+ GstStructure *new_structure;
+ const GstStructure *structure;
+ const gchar *event_name;
+ double pointer_x;
+ double pointer_y;
+
+ GstVideoCrop *vcrop = GST_VIDEO_CROP (trans);
+ new_event = NULL;
+
+ GST_OBJECT_LOCK (vcrop);
+ if (GST_EVENT_TYPE (event) == GST_EVENT_NAVIGATION &&
+ (vcrop->crop_left != 0 || vcrop->crop_top != 0)) {
+ structure = gst_event_get_structure (event);
+ event_name = gst_structure_get_string (structure, "event");
+
+ if (event_name &&
+ (strcmp (event_name, "mouse-move") == 0 ||
+ strcmp (event_name, "mouse-button-press") == 0 ||
+ strcmp (event_name, "mouse-button-release") == 0)) {
+
+ if (gst_structure_get_double (structure, "pointer_x", &pointer_x) &&
+ gst_structure_get_double (structure, "pointer_y", &pointer_y)) {
+
+ new_structure = gst_structure_copy (structure);
+ gst_structure_set (new_structure,
+ "pointer_x", G_TYPE_DOUBLE, (double) (pointer_x + vcrop->crop_left),
+ "pointer_y", G_TYPE_DOUBLE, (double) (pointer_y + vcrop->crop_top),
+ NULL);
+
+ new_event = gst_event_new_navigation (new_structure);
+ gst_event_unref (event);
+ } else {
+ GST_WARNING_OBJECT (vcrop, "Failed to read navigation event");
+ }
+ }
}
- return video_crop_type;
-}
-static void
-gst_video_crop_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_set_details (element_class, &gst_video_crop_details);
+ GST_OBJECT_UNLOCK (vcrop);
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_video_crop_sink_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_video_crop_src_template));
+ return GST_BASE_TRANSFORM_CLASS (parent_class)->src_event (trans,
+ (new_event ? new_event : event));
}
+
static void
gst_video_crop_class_init (GstVideoCropClass * klass)
{
GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
+ GstElementClass *element_class;
+ GstBaseTransformClass *basetransform_class;
+ GstVideoFilterClass *vfilter_class;
gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
-
- parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
-
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_LEFT,
- g_param_spec_int ("left", "Left", "Pixels to crop at left",
- 0, G_MAXINT, 0, G_PARAM_READWRITE));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_RIGHT,
- g_param_spec_int ("right", "Right", "Pixels to crop at right",
- 0, G_MAXINT, 0, G_PARAM_READWRITE));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_TOP,
- g_param_spec_int ("top", "Top", "Pixels to crop at top",
- 0, G_MAXINT, 0, G_PARAM_READWRITE));
- g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BOTTOM,
- g_param_spec_int ("bottom", "Bottom", "Pixels to crop at bottom",
- 0, G_MAXINT, 0, G_PARAM_READWRITE));
+ element_class = (GstElementClass *) klass;
+ basetransform_class = (GstBaseTransformClass *) klass;
+ vfilter_class = (GstVideoFilterClass *) klass;
gobject_class->set_property = gst_video_crop_set_property;
gobject_class->get_property = gst_video_crop_get_property;
- gstelement_class->change_state = gst_video_crop_change_state;
+ g_object_class_install_property (gobject_class, PROP_LEFT,
+ g_param_spec_int ("left", "Left",
+ "Pixels to crop at left (-1 to auto-crop)", -1, G_MAXINT, 0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
+ GST_PARAM_MUTABLE_PLAYING));
+ g_object_class_install_property (gobject_class, PROP_RIGHT,
+ g_param_spec_int ("right", "Right",
+ "Pixels to crop at right (-1 to auto-crop)", -1, G_MAXINT, 0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
+ GST_PARAM_MUTABLE_PLAYING));
+ g_object_class_install_property (gobject_class, PROP_TOP,
+ g_param_spec_int ("top", "Top", "Pixels to crop at top (-1 to auto-crop)",
+ -1, G_MAXINT, 0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
+ GST_PARAM_MUTABLE_PLAYING));
+ g_object_class_install_property (gobject_class, PROP_BOTTOM,
+ g_param_spec_int ("bottom", "Bottom",
+ "Pixels to crop at bottom (-1 to auto-crop)", -1, G_MAXINT, 0,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS |
+ GST_PARAM_MUTABLE_PLAYING));
+
+ gst_element_class_add_static_pad_template (element_class, &sink_template);
+ gst_element_class_add_static_pad_template (element_class, &src_template);
+ gst_element_class_set_static_metadata (element_class, "Crop",
+ "Filter/Effect/Video",
+ "Crops video into a user-defined region",
+ "Tim-Philipp Müller <tim centricular net>");
+
+ basetransform_class->transform_ip_on_passthrough = FALSE;
+ basetransform_class->transform_caps =
+ GST_DEBUG_FUNCPTR (gst_video_crop_transform_caps);
+ basetransform_class->src_event = GST_DEBUG_FUNCPTR (gst_video_crop_src_event);
+ basetransform_class->decide_allocation =
+ GST_DEBUG_FUNCPTR (gst_video_crop_decide_allocation);
+ basetransform_class->propose_allocation =
+ GST_DEBUG_FUNCPTR (gst_video_crop_propose_allocation);
+ basetransform_class->transform_ip =
+ GST_DEBUG_FUNCPTR (gst_video_crop_transform_ip);
+
+ vfilter_class->set_info = GST_DEBUG_FUNCPTR (gst_video_crop_set_info);
+ vfilter_class->transform_frame =
+ GST_DEBUG_FUNCPTR (gst_video_crop_transform_frame);
}
static void
-gst_video_crop_init (GstVideoCrop * video_crop)
+gst_video_crop_init (GstVideoCrop * vcrop)
{
- /* create the sink and src pads */
- video_crop->sinkpad =
- gst_pad_new_from_template (gst_static_pad_template_get
- (&gst_video_crop_sink_template), "sink");
- gst_element_add_pad (GST_ELEMENT (video_crop), video_crop->sinkpad);
- gst_pad_set_chain_function (video_crop->sinkpad, gst_video_crop_chain);
- gst_pad_set_getcaps_function (video_crop->sinkpad, gst_video_crop_getcaps);
- gst_pad_set_link_function (video_crop->sinkpad, gst_video_crop_link);
-
- video_crop->srcpad =
- gst_pad_new_from_template (gst_static_pad_template_get
- (&gst_video_crop_src_template), "src");
- gst_element_add_pad (GST_ELEMENT (video_crop), video_crop->srcpad);
- gst_pad_set_getcaps_function (video_crop->srcpad, gst_video_crop_getcaps);
- gst_pad_set_link_function (video_crop->srcpad, gst_video_crop_link);
-
- video_crop->crop_right = 0;
- video_crop->crop_left = 0;
- video_crop->crop_top = 0;
- video_crop->crop_bottom = 0;
+ vcrop->crop_right = 0;
+ vcrop->crop_left = 0;
+ vcrop->crop_top = 0;
+ vcrop->crop_bottom = 0;
}
-/* do we need this function? */
+#define ROUND_DOWN_2(n) ((n)&(~1))
+
static void
-gst_video_crop_set_property (GObject * object, guint prop_id,
- const GValue * value, GParamSpec * pspec)
+gst_video_crop_transform_packed_complex (GstVideoCrop * vcrop,
+ GstVideoFrame * in_frame, GstVideoFrame * out_frame, gint x, gint y)
{
- GstVideoCrop *video_crop;
+ guint8 *in_data, *out_data;
+ guint i, dx;
+ gint width, height;
+ gint in_stride;
+ gint out_stride;
- g_return_if_fail (GST_IS_VIDEO_CROP (object));
+ width = GST_VIDEO_FRAME_WIDTH (out_frame);
+ height = GST_VIDEO_FRAME_HEIGHT (out_frame);
- video_crop = GST_VIDEO_CROP (object);
+ in_data = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+ out_data = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
- switch (prop_id) {
- case ARG_LEFT:
- video_crop->crop_left = g_value_get_int (value);
- break;
- case ARG_RIGHT:
- video_crop->crop_right = g_value_get_int (value);
- break;
- case ARG_TOP:
- video_crop->crop_top = g_value_get_int (value);
- break;
- case ARG_BOTTOM:
- video_crop->crop_bottom = g_value_get_int (value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
+ in_stride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
+ out_stride = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
+
+ in_data += vcrop->crop_top * in_stride;
+
+ /* rounding down here so we end up at the start of a macro-pixel and not
+ * in the middle of one */
+ in_data += ROUND_DOWN_2 (vcrop->crop_left) *
+ GST_VIDEO_FRAME_COMP_PSTRIDE (in_frame, 0);
+
+ dx = width * GST_VIDEO_FRAME_COMP_PSTRIDE (out_frame, 0);
+
+ /* UYVY = 4:2:2 - [U0 Y0 V0 Y1] [U2 Y2 V2 Y3] [U4 Y4 V4 Y5]
+ * YUYV = 4:2:2 - [Y0 U0 Y1 V0] [Y2 U2 Y3 V2] [Y4 U4 Y5 V4] = YUY2 */
+ if ((vcrop->crop_left % 2) != 0) {
+ for (i = 0; i < height; ++i) {
+ gint j;
+
+ memcpy (out_data, in_data, dx);
+
+ /* move just the Y samples one pixel to the left, don't worry about
+ * chroma shift */
+ for (j = vcrop->macro_y_off; j < out_stride - 2; j += 2)
+ out_data[j] = in_data[j + 2];
+
+ in_data += in_stride;
+ out_data += out_stride;
+ }
+ } else {
+ for (i = 0; i < height; ++i) {
+ memcpy (out_data, in_data, dx);
+ in_data += in_stride;
+ out_data += out_stride;
+ }
}
}
+
static void
-gst_video_crop_get_property (GObject * object, guint prop_id, GValue * value,
- GParamSpec * pspec)
+gst_video_crop_transform_packed_simple (GstVideoCrop * vcrop,
+ GstVideoFrame * in_frame, GstVideoFrame * out_frame, gint x, gint y)
{
- GstVideoCrop *video_crop;
+ guint8 *in_data, *out_data;
+ gint width, height;
+ guint i, dx;
+ gint in_stride, out_stride;
- g_return_if_fail (GST_IS_VIDEO_CROP (object));
+ width = GST_VIDEO_FRAME_WIDTH (out_frame);
+ height = GST_VIDEO_FRAME_HEIGHT (out_frame);
- video_crop = GST_VIDEO_CROP (object);
+ in_data = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+ out_data = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
- switch (prop_id) {
- case ARG_LEFT:
- g_value_set_int (value, video_crop->crop_left);
+ in_stride = GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
+ out_stride = GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
+
+ in_data += (vcrop->crop_top + y) * in_stride;
+ in_data +=
+ (vcrop->crop_left + x) * GST_VIDEO_FRAME_COMP_PSTRIDE (in_frame, 0);
+
+ dx = width * GST_VIDEO_FRAME_COMP_PSTRIDE (out_frame, 0);
+
+ for (i = 0; i < height; ++i) {
+ memcpy (out_data, in_data, dx);
+ in_data += in_stride;
+ out_data += out_stride;
+ }
+}
+
+static void
+gst_video_crop_transform_planar (GstVideoCrop * vcrop,
+ GstVideoFrame * in_frame, GstVideoFrame * out_frame, gint x, gint y)
+{
+ gint width, height;
+ gint crop_top, crop_left;
+ guint8 *y_out, *u_out, *v_out;
+ guint8 *y_in, *u_in, *v_in;
+ guint i, dx;
+
+ width = GST_VIDEO_FRAME_WIDTH (out_frame);
+ height = GST_VIDEO_FRAME_HEIGHT (out_frame);
+ crop_left = vcrop->crop_left + x;
+ crop_top = vcrop->crop_top + y;
+
+ /* Y plane */
+ y_in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+ y_out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
+
+ y_in += (crop_top * GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0)) + crop_left;
+ dx = width;
+
+ for (i = 0; i < height; ++i) {
+ memcpy (y_out, y_in, dx);
+ y_in += GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
+ y_out += GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
+ }
+
+ /* U + V planes */
+ u_in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1);
+ u_out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1);
+
+ u_in += (crop_top / 2) * GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1);
+ u_in += crop_left / 2;
+
+ v_in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 2);
+ v_out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 2);
+
+ v_in += (crop_top / 2) * GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2);
+ v_in += crop_left / 2;
+
+ dx = GST_ROUND_UP_2 (width) / 2;
+
+ for (i = 0; i < GST_ROUND_UP_2 (height) / 2; ++i) {
+ memcpy (u_out, u_in, dx);
+ memcpy (v_out, v_in, dx);
+ u_in += GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1);
+ u_out += GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1);
+ v_in += GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 2);
+ v_out += GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 2);
+ }
+}
+
+static void
+gst_video_crop_transform_semi_planar (GstVideoCrop * vcrop,
+ GstVideoFrame * in_frame, GstVideoFrame * out_frame, gint x, gint y)
+{
+ gint width, height;
+ gint crop_top, crop_left;
+ guint8 *y_out, *uv_out;
+ guint8 *y_in, *uv_in;
+ guint i, dx;
+
+ width = GST_VIDEO_FRAME_WIDTH (out_frame);
+ height = GST_VIDEO_FRAME_HEIGHT (out_frame);
+ crop_left = vcrop->crop_left + x;
+ crop_top = vcrop->crop_top + y;
+
+ /* Y plane */
+ y_in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 0);
+ y_out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 0);
+
+ /* UV plane */
+ uv_in = GST_VIDEO_FRAME_PLANE_DATA (in_frame, 1);
+ uv_out = GST_VIDEO_FRAME_PLANE_DATA (out_frame, 1);
+
+ y_in += crop_top * GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0) + crop_left;
+ dx = width;
+
+ for (i = 0; i < height; ++i) {
+ memcpy (y_out, y_in, dx);
+ y_in += GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 0);
+ y_out += GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 0);
+ }
+
+ uv_in += (crop_top / 2) * GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1);
+ uv_in += GST_ROUND_DOWN_2 (crop_left);
+ dx = GST_ROUND_UP_2 (width);
+
+ for (i = 0; i < GST_ROUND_UP_2 (height) / 2; i++) {
+ memcpy (uv_out, uv_in, dx);
+ uv_in += GST_VIDEO_FRAME_PLANE_STRIDE (in_frame, 1);
+ uv_out += GST_VIDEO_FRAME_PLANE_STRIDE (out_frame, 1);
+ }
+}
+
+static GstFlowReturn
+gst_video_crop_transform_frame (GstVideoFilter * vfilter,
+ GstVideoFrame * in_frame, GstVideoFrame * out_frame)
+{
+ GstVideoCrop *vcrop = GST_VIDEO_CROP (vfilter);
+ GstVideoCropMeta *meta = gst_buffer_get_video_crop_meta (in_frame->buffer);
+ gint x = 0, y = 0;
+
+ if (G_UNLIKELY (vcrop->need_update)) {
+ if (!gst_video_crop_set_info (vfilter, NULL, &vcrop->in_info, NULL,
+ &vcrop->out_info)) {
+ return GST_FLOW_ERROR;
+ }
+ }
+
+ if (meta) {
+ x = meta->x;
+ y = meta->y;
+ }
+
+ switch (vcrop->packing) {
+ case VIDEO_CROP_PIXEL_FORMAT_PACKED_SIMPLE:
+ gst_video_crop_transform_packed_simple (vcrop, in_frame, out_frame, x, y);
break;
- case ARG_RIGHT:
- g_value_set_int (value, video_crop->crop_right);
+ case VIDEO_CROP_PIXEL_FORMAT_PACKED_COMPLEX:
+ gst_video_crop_transform_packed_complex (vcrop, in_frame, out_frame, x,
+ y);
break;
- case ARG_TOP:
- g_value_set_int (value, video_crop->crop_top);
+ case VIDEO_CROP_PIXEL_FORMAT_PLANAR:
+ gst_video_crop_transform_planar (vcrop, in_frame, out_frame, x, y);
break;
- case ARG_BOTTOM:
- g_value_set_int (value, video_crop->crop_bottom);
+ case VIDEO_CROP_PIXEL_FORMAT_SEMI_PLANAR:
+ gst_video_crop_transform_semi_planar (vcrop, in_frame, out_frame, x, y);
break;
default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
- break;
+ g_assert_not_reached ();
}
- if (gst_pad_is_negotiated (video_crop->srcpad))
- video_crop->renegotiate_src_caps = TRUE;
+ return GST_FLOW_OK;
}
-static void
-gst_video_crop_add_to_struct_val (GstStructure * s, const gchar * field_name,
- gint addval)
+static gboolean
+gst_video_crop_decide_allocation (GstBaseTransform * trans, GstQuery * query)
+{
+ GstVideoCrop *crop = GST_VIDEO_CROP (trans);
+ gboolean use_crop_meta;
+
+ use_crop_meta = (gst_query_find_allocation_meta (query,
+ GST_VIDEO_CROP_META_API_TYPE, NULL) &&
+ gst_query_find_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL));
+
+ if ((crop->crop_left | crop->crop_right | crop->crop_top | crop->
+ crop_bottom) == 0) {
+ GST_INFO_OBJECT (crop, "we are using passthrough");
+ gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (crop), TRUE);
+ gst_base_transform_set_in_place (GST_BASE_TRANSFORM (crop), FALSE);
+ } else if (use_crop_meta) {
+ GST_INFO_OBJECT (crop, "we are doing in-place transform using crop meta");
+ gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (crop), FALSE);
+ gst_base_transform_set_in_place (GST_BASE_TRANSFORM (crop), TRUE);
+ } else {
+ GST_INFO_OBJECT (crop, "we are not using passthrough");
+ gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (crop), FALSE);
+ gst_base_transform_set_in_place (GST_BASE_TRANSFORM (crop), FALSE);
+ }
+
+ return GST_BASE_TRANSFORM_CLASS (parent_class)->decide_allocation (trans,
+ query);
+}
+
+static gboolean
+gst_video_crop_propose_allocation (GstBaseTransform * trans,
+ GstQuery * decide_query, GstQuery * query)
{
- const GValue *val;
+ /* if we are not passthrough, we can handle video meta and crop meta */
+ if (decide_query) {
+ GST_DEBUG_OBJECT (trans, "Advertising video meta and crop meta support");
+ gst_query_add_allocation_meta (query, GST_VIDEO_META_API_TYPE, NULL);
+ gst_query_add_allocation_meta (query, GST_VIDEO_CROP_META_API_TYPE, NULL);
+ }
- val = gst_structure_get_value (s, field_name);
+ return GST_BASE_TRANSFORM_CLASS (parent_class)->propose_allocation (trans,
+ decide_query, query);
+}
+
+static GstFlowReturn
+gst_video_crop_transform_ip (GstBaseTransform * trans, GstBuffer * buf)
+{
+ GstVideoCrop *vcrop = GST_VIDEO_CROP (trans);
+ GstVideoFilter *vfilter = GST_VIDEO_FILTER (trans);
+ GstVideoMeta *video_meta;
+ GstVideoCropMeta *crop_meta;
- if (G_VALUE_HOLDS_INT (val)) {
- gint ival = g_value_get_int (val);
+ GST_LOG_OBJECT (trans, "Transforming in-place");
- gst_structure_set (s, field_name, G_TYPE_INT, ival + addval, NULL);
- return;
+ if (G_UNLIKELY (vcrop->need_update)) {
+ if (!gst_video_crop_set_info (vfilter, NULL, &vcrop->in_info, NULL,
+ &vcrop->out_info)) {
+ return GST_FLOW_ERROR;
+ }
}
- if (GST_VALUE_HOLDS_INT_RANGE (val)) {
- gint min = gst_value_get_int_range_min (val);
- gint max = gst_value_get_int_range_max (val);
+ /* The video meta is required since we are going to make the caps
+ * width/height smaller, which would not result in a usable GstVideoInfo for
+ * mapping the buffer. */
+ video_meta = gst_buffer_get_video_meta (buf);
+ if (!video_meta) {
+ video_meta = gst_buffer_add_video_meta (buf, GST_VIDEO_FRAME_FLAG_NONE,
+ GST_VIDEO_INFO_FORMAT (&vcrop->in_info), vcrop->in_info.width,
+ vcrop->in_info.height);
+ }
- gst_structure_set (s, field_name, GST_TYPE_INT_RANGE, min + addval,
- max + addval, NULL);
- return;
+ crop_meta = gst_buffer_get_video_crop_meta (buf);
+ if (!crop_meta) {
+ crop_meta = gst_buffer_add_video_crop_meta (buf);
+ crop_meta->width = vcrop->in_info.width;
+ crop_meta->height = vcrop->in_info.height;
}
- if (GST_VALUE_HOLDS_LIST (val)) {
- GValue newlist = { 0, };
- gint i;
+ crop_meta->x += vcrop->crop_left;
+ crop_meta->y += vcrop->crop_top;
+ crop_meta->width = GST_VIDEO_INFO_WIDTH (&vcrop->out_info);
+ crop_meta->height = GST_VIDEO_INFO_HEIGHT (&vcrop->out_info);
- g_value_init (&newlist, GST_TYPE_LIST);
- for (i = 0; i < gst_value_list_get_size (val); ++i) {
- GValue newval = { 0, };
- g_value_init (&newval, G_VALUE_TYPE (val));
- g_value_copy (val, &newval);
- if (G_VALUE_HOLDS_INT (val)) {
- gint ival = g_value_get_int (val);
+ return GST_FLOW_OK;
+}
+
+static gint
+gst_video_crop_transform_dimension (gint val, gint delta)
+{
+ gint64 new_val = (gint64) val + (gint64) delta;
+
+ new_val = CLAMP (new_val, 1, G_MAXINT);
- g_value_set_int (&newval, ival + addval);
- } else if (GST_VALUE_HOLDS_INT_RANGE (val)) {
- gint min = gst_value_get_int_range_min (val);
- gint max = gst_value_get_int_range_max (val);
+ return (gint) new_val;
+}
- gst_value_set_int_range (&newval, min + addval, max + addval);
+static gboolean
+gst_video_crop_transform_dimension_value (const GValue * src_val,
+ gint delta, GValue * dest_val, GstPadDirection direction, gboolean dynamic)
+{
+ gboolean ret = TRUE;
+
+ if (G_VALUE_HOLDS_INT (src_val)) {
+ gint ival = g_value_get_int (src_val);
+ ival = gst_video_crop_transform_dimension (ival, delta);
+
+ if (dynamic) {
+ if (direction == GST_PAD_SRC) {
+ if (ival == G_MAXINT) {
+ g_value_init (dest_val, G_TYPE_INT);
+ g_value_set_int (dest_val, ival);
+ } else {
+ g_value_init (dest_val, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range (dest_val, ival, G_MAXINT);
+ }
} else {
- g_return_if_reached ();
+ if (ival == 1) {
+ g_value_init (dest_val, G_TYPE_INT);
+ g_value_set_int (dest_val, ival);
+ } else {
+ g_value_init (dest_val, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range (dest_val, 1, ival);
+ }
}
- gst_value_list_append_value (&newlist, &newval);
+ } else {
+ g_value_init (dest_val, G_TYPE_INT);
+ g_value_set_int (dest_val, ival);
+ }
+ } else if (GST_VALUE_HOLDS_INT_RANGE (src_val)) {
+ gint min = gst_value_get_int_range_min (src_val);
+ gint max = gst_value_get_int_range_max (src_val);
+
+ min = gst_video_crop_transform_dimension (min, delta);
+ max = gst_video_crop_transform_dimension (max, delta);
+
+ if (dynamic) {
+ if (direction == GST_PAD_SRC)
+ max = G_MAXINT;
+ else
+ min = 1;
+ }
+
+ if (min == max) {
+ g_value_init (dest_val, G_TYPE_INT);
+ g_value_set_int (dest_val, min);
+ } else {
+ g_value_init (dest_val, GST_TYPE_INT_RANGE);
+ gst_value_set_int_range (dest_val, min, max);
+ }
+ } else if (GST_VALUE_HOLDS_LIST (src_val)) {
+ gint i;
+
+ g_value_init (dest_val, GST_TYPE_LIST);
+
+ for (i = 0; i < gst_value_list_get_size (src_val); ++i) {
+ const GValue *list_val;
+ GValue newval = { 0, };
+
+ list_val = gst_value_list_get_value (src_val, i);
+ if (gst_video_crop_transform_dimension_value (list_val, delta, &newval,
+ direction, dynamic))
+ gst_value_list_append_value (dest_val, &newval);
g_value_unset (&newval);
}
- gst_structure_set_value (s, field_name, &newlist);
- g_value_unset (&newlist);
- return;
+
+ if (gst_value_list_get_size (dest_val) == 0) {
+ g_value_unset (dest_val);
+ ret = FALSE;
+ }
+ } else {
+ ret = FALSE;
}
- g_return_if_reached ();
+ return ret;
}
static GstCaps *
-gst_video_crop_getcaps (GstPad * pad)
+gst_video_crop_transform_caps (GstBaseTransform * trans,
+ GstPadDirection direction, GstCaps * caps, GstCaps * filter_caps)
{
- GstVideoCrop *vc;
- GstCaps *othercaps, *caps;
- GstPad *otherpad;
- gint i, delta_w, delta_h;
-
- vc = GST_VIDEO_CROP (gst_pad_get_parent (pad));
- otherpad = (pad == vc->srcpad) ? vc->sinkpad : vc->srcpad;
- othercaps = gst_pad_get_allowed_caps (otherpad);
+ GstVideoCrop *vcrop;
+ GstCaps *other_caps;
+ gint dy, dx, i, left, right, bottom, top;
+ gboolean w_dynamic, h_dynamic;
- GST_DEBUG_OBJECT (pad, "othercaps of otherpad %s:%s are: %" GST_PTR_FORMAT,
- GST_DEBUG_PAD_NAME (otherpad), othercaps);
+ vcrop = GST_VIDEO_CROP (trans);
- if (pad == vc->srcpad) {
- delta_w = 0 - vc->crop_left - vc->crop_right;
- delta_h = 0 - vc->crop_top - vc->crop_bottom;
- } else {
- delta_w = vc->crop_left + vc->crop_right;
- delta_h = vc->crop_top + vc->crop_bottom;
- }
+ GST_OBJECT_LOCK (vcrop);
- for (i = 0; i < gst_caps_get_size (othercaps); i++) {
- GstStructure *s = gst_caps_get_structure (othercaps, i);
+ GST_LOG_OBJECT (vcrop, "l=%d,r=%d,b=%d,t=%d",
+ vcrop->prop_left, vcrop->prop_right, vcrop->prop_bottom, vcrop->prop_top);
- gst_video_crop_add_to_struct_val (s, "width", delta_w);
- gst_video_crop_add_to_struct_val (s, "height", delta_h);
- }
+ w_dynamic = (vcrop->prop_left == -1 || vcrop->prop_right == -1);
+ h_dynamic = (vcrop->prop_top == -1 || vcrop->prop_bottom == -1);
- caps = gst_caps_intersect (othercaps, gst_pad_get_pad_template_caps (pad));
- gst_caps_free (othercaps);
+ left = (vcrop->prop_left == -1) ? 0 : vcrop->prop_left;
+ right = (vcrop->prop_right == -1) ? 0 : vcrop->prop_right;
+ bottom = (vcrop->prop_bottom == -1) ? 0 : vcrop->prop_bottom;
+ top = (vcrop->prop_top == -1) ? 0 : vcrop->prop_top;
- GST_DEBUG_OBJECT (pad, "returning caps: %" GST_PTR_FORMAT, caps);
- return caps;
-}
+ GST_OBJECT_UNLOCK (vcrop);
-static GstPadLinkReturn
-gst_video_crop_link (GstPad * pad, const GstCaps * caps)
-{
- GstPadLinkReturn ret;
- GstStructure *structure;
- GstVideoCrop *vc;
- GstCaps *newcaps;
- GstPad *otherpad;
- gint w, h, other_w, other_h;
-
- vc = GST_VIDEO_CROP (gst_pad_get_parent (pad));
-
- structure = gst_caps_get_structure (caps, 0);
- if (!gst_structure_get_int (structure, "width", &w)
- || !gst_structure_get_int (structure, "height", &h))
- return GST_PAD_LINK_DELAYED;
-
- if (pad == vc->srcpad) {
- other_w = w + vc->crop_left + vc->crop_right;
- other_h = h + vc->crop_top + vc->crop_bottom;
- otherpad = vc->sinkpad;
- vc->width = other_w;
- vc->height = other_h;
+ if (direction == GST_PAD_SRC) {
+ dx = left + right;
+ dy = top + bottom;
} else {
- other_w = w - vc->crop_left - vc->crop_right;
- other_h = h - vc->crop_top - vc->crop_bottom;
- vc->width = w;
- vc->height = h;
- otherpad = vc->srcpad;
+ dx = 0 - (left + right);
+ dy = 0 - (top + bottom);
}
- newcaps = gst_caps_copy (caps);
-
- gst_caps_set_simple (newcaps,
- "width", G_TYPE_INT, other_w, "height", G_TYPE_INT, other_h, NULL);
+ GST_LOG_OBJECT (vcrop, "transforming caps %" GST_PTR_FORMAT, caps);
- ret = gst_pad_try_set_caps (otherpad, newcaps);
- gst_caps_free (newcaps);
+ other_caps = gst_caps_new_empty ();
- if (ret == GST_PAD_LINK_REFUSED)
- return GST_PAD_LINK_REFUSED;
+ for (i = 0; i < gst_caps_get_size (caps); ++i) {
+ const GValue *v;
+ GstStructure *structure, *new_structure;
+ GValue w_val = { 0, }, h_val = {
+ 0,};
- return GST_PAD_LINK_OK;
-}
-
-/* these macros are adapted from videotestsrc.c, paint_setup_I420() */
-#define ROUND_UP_2(x) (((x)+1)&~1)
-#define ROUND_UP_4(x) (((x)+3)&~3)
-#define ROUND_UP_8(x) (((x)+7)&~7)
-
-#define GST_VIDEO_I420_Y_ROWSTRIDE(width) (ROUND_UP_4(width))
-#define GST_VIDEO_I420_U_ROWSTRIDE(width) (ROUND_UP_8(width)/2)
-#define GST_VIDEO_I420_V_ROWSTRIDE(width) ((ROUND_UP_8(GST_VIDEO_I420_Y_ROWSTRIDE(width)))/2)
+ structure = gst_caps_get_structure (caps, i);
-#define GST_VIDEO_I420_Y_OFFSET(w,h) (0)
-#define GST_VIDEO_I420_U_OFFSET(w,h) (GST_VIDEO_I420_Y_OFFSET(w,h)+(GST_VIDEO_I420_Y_ROWSTRIDE(w)*ROUND_UP_2(h)))
-#define GST_VIDEO_I420_V_OFFSET(w,h) (GST_VIDEO_I420_U_OFFSET(w,h)+(GST_VIDEO_I420_U_ROWSTRIDE(w)*ROUND_UP_2(h)/2))
+ v = gst_structure_get_value (structure, "width");
+ if (!gst_video_crop_transform_dimension_value (v, dx, &w_val, direction,
+ w_dynamic)) {
+ GST_WARNING_OBJECT (vcrop, "could not tranform width value with dx=%d"
+ ", caps structure=%" GST_PTR_FORMAT, dx, structure);
+ continue;
+ }
-#define GST_VIDEO_I420_SIZE(w,h) (GST_VIDEO_I420_V_OFFSET(w,h)+(GST_VIDEO_I420_V_ROWSTRIDE(w)*ROUND_UP_2(h)/2))
+ v = gst_structure_get_value (structure, "height");
+ if (!gst_video_crop_transform_dimension_value (v, dy, &h_val, direction,
+ h_dynamic)) {
+ g_value_unset (&w_val);
+ GST_WARNING_OBJECT (vcrop, "could not tranform height value with dy=%d"
+ ", caps structure=%" GST_PTR_FORMAT, dy, structure);
+ continue;
+ }
-static void
-gst_video_crop_i420 (GstVideoCrop * video_crop, GstBuffer * src_buffer,
- GstBuffer * dest_buffer)
-{
- guint8 *src;
- guint8 *dest;
- guint8 *srcY, *srcU, *srcV;
- guint8 *destY, *destU, *destV;
- gint out_width = video_crop->width -
- (video_crop->crop_left + video_crop->crop_right);
- gint out_height = video_crop->height -
- (video_crop->crop_top + video_crop->crop_bottom);
- gint j;
-
- src = GST_BUFFER_DATA (src_buffer);
- dest = GST_BUFFER_DATA (dest_buffer);
-
- srcY = src + GST_VIDEO_I420_Y_OFFSET (video_crop->width, video_crop->height);
- destY = dest + GST_VIDEO_I420_Y_OFFSET (out_width, out_height);
-
- /* copy Y plane first */
- srcY +=
- (GST_VIDEO_I420_Y_ROWSTRIDE (video_crop->width) * video_crop->crop_top) +
- video_crop->crop_left;
- for (j = 0; j < out_height; j++) {
- memcpy (destY, srcY, out_width);
- srcY += GST_VIDEO_I420_Y_ROWSTRIDE (video_crop->width);
- destY += GST_VIDEO_I420_Y_ROWSTRIDE (out_width);
+ new_structure = gst_structure_copy (structure);
+ gst_structure_set_value (new_structure, "width", &w_val);
+ gst_structure_set_value (new_structure, "height", &h_val);
+ g_value_unset (&w_val);
+ g_value_unset (&h_val);
+ GST_LOG_OBJECT (vcrop, "transformed structure %2d: %" GST_PTR_FORMAT
+ " => %" GST_PTR_FORMAT, i, structure, new_structure);
+ gst_caps_append_structure (other_caps, new_structure);
}
- destU = dest + GST_VIDEO_I420_U_OFFSET (out_width, out_height);
- destV = dest + GST_VIDEO_I420_V_OFFSET (out_width, out_height);
-
- srcU = src + GST_VIDEO_I420_U_OFFSET (video_crop->width, video_crop->height);
- srcV = src + GST_VIDEO_I420_V_OFFSET (video_crop->width, video_crop->height);
-
- srcU +=
- (GST_VIDEO_I420_U_ROWSTRIDE (video_crop->width) * (video_crop->crop_top /
- 2)) + (video_crop->crop_left / 2);
- srcV +=
- (GST_VIDEO_I420_V_ROWSTRIDE (video_crop->width) * (video_crop->crop_top /
- 2)) + (video_crop->crop_left / 2);
-
- for (j = 0; j < out_height / 2; j++) {
- /* copy U plane */
- memcpy (destU, srcU, out_width / 2);
- srcU += GST_VIDEO_I420_U_ROWSTRIDE (video_crop->width);
- destU += GST_VIDEO_I420_U_ROWSTRIDE (out_width);
-
- /* copy V plane */
- memcpy (destV, srcV, out_width / 2);
- srcV += GST_VIDEO_I420_V_ROWSTRIDE (video_crop->width);
- destV += GST_VIDEO_I420_V_ROWSTRIDE (out_width);
+ if (!gst_caps_is_empty (other_caps) && filter_caps) {
+ GstCaps *tmp = gst_caps_intersect_full (filter_caps, other_caps,
+ GST_CAPS_INTERSECT_FIRST);
+ gst_caps_replace (&other_caps, tmp);
+ gst_caps_unref (tmp);
}
+
+ return other_caps;
}
-static void
-gst_video_crop_chain (GstPad * pad, GstData * _data)
+static gboolean
+gst_video_crop_set_info (GstVideoFilter * vfilter, GstCaps * in,
+ GstVideoInfo * in_info, GstCaps * out, GstVideoInfo * out_info)
{
- GstBuffer *buffer = GST_BUFFER (_data);
- GstVideoCrop *video_crop;
- GstBuffer *outbuf;
- gint new_width, new_height;
+ GstVideoCrop *crop = GST_VIDEO_CROP (vfilter);
+ int dx, dy;
+
+ GST_OBJECT_LOCK (crop);
+ crop->need_update = FALSE;
+ crop->crop_left = crop->prop_left;
+ crop->crop_right = crop->prop_right;
+ crop->crop_top = crop->prop_top;
+ crop->crop_bottom = crop->prop_bottom;
+ GST_OBJECT_UNLOCK (crop);
+
+ dx = GST_VIDEO_INFO_WIDTH (in_info) - GST_VIDEO_INFO_WIDTH (out_info);
+ dy = GST_VIDEO_INFO_HEIGHT (in_info) - GST_VIDEO_INFO_HEIGHT (out_info);
+
+ if (crop->crop_left == -1 && crop->crop_right == -1) {
+ crop->crop_left = dx / 2;
+ crop->crop_right = dx / 2 + (dx & 1);
+ } else if (crop->crop_left == -1) {
+ if (G_UNLIKELY (crop->crop_right > dx))
+ goto cropping_too_much;
+ crop->crop_left = dx - crop->crop_right;
+ } else if (crop->crop_right == -1) {
+ if (G_UNLIKELY (crop->crop_left > dx))
+ goto cropping_too_much;
+ crop->crop_right = dx - crop->crop_left;
+ }
- video_crop = GST_VIDEO_CROP (gst_pad_get_parent (pad));
+ if (crop->crop_top == -1 && crop->crop_bottom == -1) {
+ crop->crop_top = dy / 2;
+ crop->crop_bottom = dy / 2 + (dy & 1);
+ } else if (crop->crop_top == -1) {
+ if (G_UNLIKELY (crop->crop_bottom > dy))
+ goto cropping_too_much;
+ crop->crop_top = dy - crop->crop_bottom;
+ } else if (crop->crop_bottom == -1) {
+ if (G_UNLIKELY (crop->crop_top > dy))
+ goto cropping_too_much;
+ crop->crop_bottom = dy - crop->crop_top;
+ }
- new_width = video_crop->width -
- (video_crop->crop_left + video_crop->crop_right);
- new_height = video_crop->height -
- (video_crop->crop_top + video_crop->crop_bottom);
+ if (G_UNLIKELY ((crop->crop_left + crop->crop_right) >=
+ GST_VIDEO_INFO_WIDTH (in_info)
+ || (crop->crop_top + crop->crop_bottom) >=
+ GST_VIDEO_INFO_HEIGHT (in_info)))
+ goto cropping_too_much;
- if (video_crop->renegotiate_src_caps || !GST_PAD_CAPS (video_crop->srcpad)) {
- GstCaps *newcaps;
+ if (in && out)
+ GST_LOG_OBJECT (crop, "incaps = %" GST_PTR_FORMAT ", outcaps = %"
+ GST_PTR_FORMAT, in, out);
- newcaps = gst_caps_copy (gst_pad_get_negotiated_caps (video_crop->sinkpad));
+ if (GST_VIDEO_INFO_IS_RGB (in_info)
+ || GST_VIDEO_INFO_IS_GRAY (in_info)) {
+ crop->packing = VIDEO_CROP_PIXEL_FORMAT_PACKED_SIMPLE;
+ } else {
+ switch (GST_VIDEO_INFO_FORMAT (in_info)) {
+ case GST_VIDEO_FORMAT_AYUV:
+ crop->packing = VIDEO_CROP_PIXEL_FORMAT_PACKED_SIMPLE;
+ break;
+ case GST_VIDEO_FORMAT_YVYU:
+ case GST_VIDEO_FORMAT_YUY2:
+ case GST_VIDEO_FORMAT_UYVY:
+ crop->packing = VIDEO_CROP_PIXEL_FORMAT_PACKED_COMPLEX;
+ if (GST_VIDEO_INFO_FORMAT (in_info) == GST_VIDEO_FORMAT_UYVY) {
+ /* UYVY = 4:2:2 - [U0 Y0 V0 Y1] [U2 Y2 V2 Y3] [U4 Y4 V4 Y5] */
+ crop->macro_y_off = 1;
+ } else {
+ /* YUYV = 4:2:2 - [Y0 U0 Y1 V0] [Y2 U2 Y3 V2] [Y4 U4 Y5 V4] = YUY2 */
+ crop->macro_y_off = 0;
+ }
+ break;
+ case GST_VIDEO_FORMAT_I420:
+ case GST_VIDEO_FORMAT_YV12:
+ crop->packing = VIDEO_CROP_PIXEL_FORMAT_PLANAR;
+ break;
+ case GST_VIDEO_FORMAT_NV12:
+ case GST_VIDEO_FORMAT_NV21:
+ crop->packing = VIDEO_CROP_PIXEL_FORMAT_SEMI_PLANAR;
+ break;
+ default:
+ goto unknown_format;
+ }
+ }
- gst_caps_set_simple (newcaps,
- "width", G_TYPE_INT, new_width, "height", G_TYPE_INT, new_height, NULL);
+ crop->in_info = *in_info;
+ crop->out_info = *out_info;
- if (GST_PAD_LINK_FAILED (gst_pad_try_set_caps (video_crop->srcpad,
- newcaps))) {
- GST_ELEMENT_ERROR (video_crop, CORE, NEGOTIATION, (NULL), (NULL));
- gst_caps_free (newcaps);
- return;
- }
+ /* Ensure our decide_allocation will be called again */
+ gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (crop), FALSE);
+ gst_base_transform_set_in_place (GST_BASE_TRANSFORM (crop), FALSE);
- gst_caps_free (newcaps);
+ return TRUE;
- video_crop->renegotiate_src_caps = FALSE;
+ /* ERROR */
+cropping_too_much:
+ {
+ GST_WARNING_OBJECT (crop, "we are cropping too much");
+ return FALSE;
+ }
+unknown_format:
+ {
+ GST_WARNING_OBJECT (crop, "Unsupported format");
+ return FALSE;
}
+}
- /* passthrough if nothing to do */
- if (new_width == video_crop->width && new_height == video_crop->height) {
- gst_pad_push (video_crop->srcpad, GST_DATA (buffer));
- return;
+/* called with object lock */
+static inline void
+gst_video_crop_set_crop (GstVideoCrop * vcrop, gint new_value, gint * prop)
+{
+ if (*prop != new_value) {
+ *prop = new_value;
+ vcrop->need_update = TRUE;
}
+}
- g_return_if_fail (GST_BUFFER_SIZE (buffer) >=
- GST_VIDEO_I420_SIZE (video_crop->width, video_crop->height));
+static void
+gst_video_crop_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstVideoCrop *video_crop;
- outbuf =
- gst_pad_alloc_buffer_and_set_caps (video_crop->srcpad,
- GST_BUFFER_OFFSET (buffer), GST_VIDEO_I420_SIZE (new_width, new_height));
+ video_crop = GST_VIDEO_CROP (object);
- gst_buffer_stamp (outbuf, buffer);
+ GST_OBJECT_LOCK (video_crop);
+ switch (prop_id) {
+ case PROP_LEFT:
+ gst_video_crop_set_crop (video_crop, g_value_get_int (value),
+ &video_crop->prop_left);
+ break;
+ case PROP_RIGHT:
+ gst_video_crop_set_crop (video_crop, g_value_get_int (value),
+ &video_crop->prop_right);
+ break;
+ case PROP_TOP:
+ gst_video_crop_set_crop (video_crop, g_value_get_int (value),
+ &video_crop->prop_top);
+ break;
+ case PROP_BOTTOM:
+ gst_video_crop_set_crop (video_crop, g_value_get_int (value),
+ &video_crop->prop_bottom);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+ GST_LOG_OBJECT (video_crop, "l=%d,r=%d,b=%d,t=%d, need_update:%d",
+ video_crop->prop_left, video_crop->prop_right, video_crop->prop_bottom,
+ video_crop->prop_top, video_crop->need_update);
- gst_video_crop_i420 (video_crop, buffer, outbuf);
- gst_buffer_unref (buffer);
+ GST_OBJECT_UNLOCK (video_crop);
- gst_pad_push (video_crop->srcpad, GST_DATA (outbuf));
+ gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM (video_crop));
}
-static GstStateChangeReturn
-gst_video_crop_change_state (GstElement * element, GstStateChange transition)
+static void
+gst_video_crop_get_property (GObject * object, guint prop_id, GValue * value,
+ GParamSpec * pspec)
{
GstVideoCrop *video_crop;
- video_crop = GST_VIDEO_CROP (element);
+ video_crop = GST_VIDEO_CROP (object);
- switch (transition) {
- case GST_STATE_CHANGE_NULL_TO_READY:
- video_crop->renegotiate_src_caps = TRUE;
- break;
- case GST_STATE_CHANGE_READY_TO_PAUSED:
+ GST_OBJECT_LOCK (video_crop);
+ switch (prop_id) {
+ case PROP_LEFT:
+ g_value_set_int (value, video_crop->prop_left);
break;
- case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
+ case PROP_RIGHT:
+ g_value_set_int (value, video_crop->prop_right);
break;
- case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
+ case PROP_TOP:
+ g_value_set_int (value, video_crop->prop_top);
break;
- case GST_STATE_CHANGE_PAUSED_TO_READY:
+ case PROP_BOTTOM:
+ g_value_set_int (value, video_crop->prop_bottom);
break;
- case GST_STATE_CHANGE_READY_TO_NULL:
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
-
- if (parent_class->change_state != NULL)
- return parent_class->change_state (element, transition);
-
- return GST_STATE_CHANGE_SUCCESS;
+ GST_OBJECT_UNLOCK (video_crop);
}
static gboolean
plugin_init (GstPlugin * plugin)
{
- return gst_element_register (plugin, "videocrop", GST_RANK_NONE,
- GST_TYPE_VIDEO_CROP);
+ GST_DEBUG_CATEGORY_INIT (videocrop_debug, "videocrop", 0, "videocrop");
+
+ if (gst_element_register (plugin, "videocrop", GST_RANK_NONE,
+ GST_TYPE_VIDEO_CROP)
+ && gst_element_register (plugin, "aspectratiocrop", GST_RANK_NONE,
+ GST_TYPE_ASPECT_RATIO_CROP))
+ return TRUE;
+
+ return FALSE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
- "videocrop",
- "Crops video into a user defined region",
+ videocrop,
+ "Crops video into a user-defined region",
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN)
projects / platform / upstream / gst-plugins-good.git / blobdiff