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05eaedc496
Original commit message from CVS: * ext/annodex/gstcmmldec.c: * ext/annodex/gstcmmlenc.c: * ext/annodex/gstcmmlparser.c: * ext/dv/gstdvdec.c: * ext/dv/gstdvdemux.c: * ext/gdk_pixbuf/pixbufscale.c: * ext/jpeg/gstjpegenc.c: * ext/jpeg/gstsmokedec.c: * ext/jpeg/gstsmokeenc.c: * ext/libpng/gstpngdec.c: * ext/libpng/gstpngenc.c: * ext/speex/gstspeexenc.c: * gst/alpha/gstalphacolor.c: * gst/cutter/gstcutter.c: * gst/debug/gstnavigationtest.c: * gst/icydemux/gsticydemux.c: * gst/level/gstlevel.c: * gst/multipart/multipart.c: * gst/rtp/gstrtpamrpay.c: * gst/rtp/gstrtpdepay.c: * gst/rtp/gstrtpilbcpay.c: * gst/rtp/gstrtpmp4gpay.c: * gst/rtp/gstrtpmp4vpay.c: * gst/rtsp/gstrtpdec.c: * gst/rtsp/gstrtspsrc.c: * gst/udp/gstdynudpsink.c: * gst/udp/gstmultiudpsink.c: * gst/udp/gstudpsrc.c: * gst/videobox/gstvideobox.c: * gst/videofilter/gstvideoflip.c: Use GST_DEBUG_CATEGORY_STATIC where possible (#342503) plus two minor macro fixes.
709 lines
21 KiB
C
709 lines
21 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David Schleef <ds@schleef.org>
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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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/*
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* This file was (probably) generated from gstvideoflip.c,
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* gstvideoflip.c,v 1.7 2003/11/08 02:48:59 dschleef Exp
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*/
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/**
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* SECTION:element-videoflip
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*
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* <refsect2>
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* <para>
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* Flips and rotates video.
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* </para>
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* <title>Example launch line</title>
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* <para>
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* <programlisting>
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* gst-launch videotestsrc ! videoflip method=clockwise ! ffmpegcolorspace ! ximagesink
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* </programlisting>
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* This pipeline flips the test image 90 degrees clockwise.
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* </para>
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* </refsect2>
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*
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* Last reviewed on 2006-03-03 (0.10.3)
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstvideoflip.h"
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#include <string.h>
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#include <gst/video/video.h>
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/* GstVideoFlip signals and args */
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enum
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{
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ARG_0,
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ARG_METHOD
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/* FILL ME */
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};
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GST_DEBUG_CATEGORY_STATIC (video_flip_debug);
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#define GST_CAT_DEFAULT video_flip_debug
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static const GstElementDetails video_flip_details =
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GST_ELEMENT_DETAILS ("Video flipper",
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"Filter/Effect/Video",
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"Flips and rotates video",
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"David Schleef <ds@schleef.org>");
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static GstStaticPadTemplate gst_video_flip_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ IYUV, I420, YV12 }"))
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);
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static GstStaticPadTemplate gst_video_flip_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ IYUV, I420, YV12 }"))
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);
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static GstVideoFilterClass *parent_class = NULL;
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#define GST_TYPE_VIDEO_FLIP_METHOD (gst_video_flip_method_get_type())
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static GType
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gst_video_flip_method_get_type (void)
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{
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static GType video_flip_method_type = 0;
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static const GEnumValue video_flip_methods[] = {
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{GST_VIDEO_FLIP_METHOD_IDENTITY, "Identity (no rotation)", "none"},
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{GST_VIDEO_FLIP_METHOD_90R, "Rotate clockwise 90 degrees", "clockwise"},
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{GST_VIDEO_FLIP_METHOD_180, "Rotate 180 degrees", "rotate-180"},
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{GST_VIDEO_FLIP_METHOD_90L, "Rotate counter-clockwise 90 degrees",
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"counterclockwise"},
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{GST_VIDEO_FLIP_METHOD_HORIZ, "Flip horizontally", "horizontal-flip"},
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{GST_VIDEO_FLIP_METHOD_VERT, "Flip vertically", "vertical-flip"},
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{GST_VIDEO_FLIP_METHOD_TRANS,
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"Flip across upper left/lower right diagonal", "upper-left-diagonal"},
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{GST_VIDEO_FLIP_METHOD_OTHER,
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"Flip across upper right/lower left diagonal", "upper-right-diagonal"},
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{0, NULL, NULL},
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};
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if (!video_flip_method_type) {
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video_flip_method_type = g_enum_register_static ("GstVideoFlipMethod",
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video_flip_methods);
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}
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return video_flip_method_type;
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}
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static gboolean
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gst_video_flip_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
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GstCaps * outcaps)
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{
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GstVideoFlip *vf;
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GstStructure *in_s, *out_s;
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gboolean ret = FALSE;
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vf = GST_VIDEO_FLIP (btrans);
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in_s = gst_caps_get_structure (incaps, 0);
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out_s = gst_caps_get_structure (outcaps, 0);
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if (gst_structure_get_int (in_s, "width", &vf->from_width) &&
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gst_structure_get_int (in_s, "height", &vf->from_height) &&
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gst_structure_get_int (out_s, "width", &vf->to_width) &&
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gst_structure_get_int (out_s, "height", &vf->to_height)) {
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/* Check that they are correct */
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switch (vf->method) {
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case GST_VIDEO_FLIP_METHOD_90R:
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case GST_VIDEO_FLIP_METHOD_90L:
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case GST_VIDEO_FLIP_METHOD_TRANS:
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case GST_VIDEO_FLIP_METHOD_OTHER:
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if ((vf->from_width != vf->to_height) ||
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(vf->from_height != vf->to_width)) {
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GST_DEBUG_OBJECT (vf, "we are inverting width and height but caps "
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"are not correct : %dx%d to %dx%d", vf->from_width,
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vf->from_height, vf->to_width, vf->to_height);
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goto beach;
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}
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break;
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case GST_VIDEO_FLIP_METHOD_IDENTITY:
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break;
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case GST_VIDEO_FLIP_METHOD_180:
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case GST_VIDEO_FLIP_METHOD_HORIZ:
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case GST_VIDEO_FLIP_METHOD_VERT:
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if ((vf->from_width != vf->to_width) ||
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(vf->from_height != vf->to_height)) {
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GST_DEBUG_OBJECT (vf, "we are keeping width and height but caps "
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"are not correct : %dx%d to %dx%d", vf->from_width,
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vf->from_height, vf->to_width, vf->to_height);
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goto beach;
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}
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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}
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ret = TRUE;
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beach:
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return ret;
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}
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static GstCaps *
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gst_video_flip_transform_caps (GstBaseTransform * trans,
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GstPadDirection direction, GstCaps * caps)
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{
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GstVideoFlip *videoflip;
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GstCaps *ret;
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gint width, height, i;
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videoflip = GST_VIDEO_FLIP (trans);
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ret = gst_caps_copy (caps);
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for (i = 0; i < gst_caps_get_size (ret); i++) {
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GstStructure *structure = gst_caps_get_structure (ret, i);
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if (gst_structure_get_int (structure, "width", &width) &&
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gst_structure_get_int (structure, "height", &height)) {
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switch (videoflip->method) {
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case GST_VIDEO_FLIP_METHOD_90R:
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case GST_VIDEO_FLIP_METHOD_90L:
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case GST_VIDEO_FLIP_METHOD_TRANS:
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case GST_VIDEO_FLIP_METHOD_OTHER:
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gst_structure_set (structure, "width", G_TYPE_INT, height,
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"height", G_TYPE_INT, width, NULL);
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break;
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case GST_VIDEO_FLIP_METHOD_IDENTITY:
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case GST_VIDEO_FLIP_METHOD_180:
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case GST_VIDEO_FLIP_METHOD_HORIZ:
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case GST_VIDEO_FLIP_METHOD_VERT:
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gst_structure_set (structure, "width", G_TYPE_INT, width,
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"height", G_TYPE_INT, height, NULL);
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break;
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default:
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g_assert_not_reached ();
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break;
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}
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}
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}
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GST_DEBUG_OBJECT (videoflip, "transformed %" GST_PTR_FORMAT " to %"
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GST_PTR_FORMAT, caps, ret);
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return ret;
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}
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/* Useful macros */
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#define GST_VIDEO_I420_Y_ROWSTRIDE(width) (GST_ROUND_UP_4(width))
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#define GST_VIDEO_I420_U_ROWSTRIDE(width) (GST_ROUND_UP_8(width)/2)
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#define GST_VIDEO_I420_V_ROWSTRIDE(width) ((GST_ROUND_UP_8(GST_VIDEO_I420_Y_ROWSTRIDE(width)))/2)
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#define GST_VIDEO_I420_Y_OFFSET(w,h) (0)
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#define GST_VIDEO_I420_U_OFFSET(w,h) (GST_VIDEO_I420_Y_OFFSET(w,h)+(GST_VIDEO_I420_Y_ROWSTRIDE(w)*GST_ROUND_UP_2(h)))
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#define GST_VIDEO_I420_V_OFFSET(w,h) (GST_VIDEO_I420_U_OFFSET(w,h)+(GST_VIDEO_I420_U_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
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#define GST_VIDEO_I420_SIZE(w,h) (GST_VIDEO_I420_V_OFFSET(w,h)+(GST_VIDEO_I420_V_ROWSTRIDE(w)*GST_ROUND_UP_2(h)/2))
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static gboolean
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gst_video_flip_get_unit_size (GstBaseTransform * btrans, GstCaps * caps,
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guint * size)
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{
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GstVideoFlip *videoflip;
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GstStructure *structure;
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gboolean ret = FALSE;
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gint width, height;
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videoflip = GST_VIDEO_FLIP (btrans);
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structure = gst_caps_get_structure (caps, 0);
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if (gst_structure_get_int (structure, "width", &width) &&
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gst_structure_get_int (structure, "height", &height)) {
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*size = GST_VIDEO_I420_SIZE (width, height);
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ret = TRUE;
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GST_DEBUG_OBJECT (videoflip, "our frame size is %d bytes (%dx%d)", *size,
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width, height);
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}
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return ret;
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}
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static GstFlowReturn
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gst_video_flip_flip (GstVideoFlip * videoflip, guint8 * dest,
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guint8 * src, int sw, int sh, int dw, int dh)
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{
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GstFlowReturn ret = GST_FLOW_OK;
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int x, y;
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guint8 *s = src, *d = dest;
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switch (videoflip->method) {
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case GST_VIDEO_FLIP_METHOD_90R:
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/* Flip Y */
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for (y = 0; y < dh; y++) {
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for (x = 0; x < dw; x++) {
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d[y * GST_VIDEO_I420_Y_ROWSTRIDE (dw) + x] =
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s[(sh - 1 - x) * GST_VIDEO_I420_Y_ROWSTRIDE (sw) + y];
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}
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}
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/* Flip U */
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s = src + GST_VIDEO_I420_U_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_U_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_U_ROWSTRIDE (dw) + x] =
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s[(sh / 2 - 1 - x) * GST_VIDEO_I420_U_ROWSTRIDE (sw) + y];
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}
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}
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/* Flip V */
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s = src + GST_VIDEO_I420_V_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_V_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_V_ROWSTRIDE (dw) + x] =
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s[(sh / 2 - 1 - x) * GST_VIDEO_I420_V_ROWSTRIDE (sw) + y];
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}
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}
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break;
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case GST_VIDEO_FLIP_METHOD_90L:
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/* Flip Y */
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for (y = 0; y < dh; y++) {
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for (x = 0; x < dw; x++) {
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d[y * GST_VIDEO_I420_Y_ROWSTRIDE (dw) + x] =
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s[x * GST_VIDEO_I420_Y_ROWSTRIDE (sw) + (sw - 1 - y)];
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}
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}
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/* Flip U */
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s = src + GST_VIDEO_I420_U_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_U_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_U_ROWSTRIDE (dw) + x] =
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s[x * GST_VIDEO_I420_U_ROWSTRIDE (sw) + (sw / 2 - 1 - y)];
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}
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}
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/* Flip V */
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s = src + GST_VIDEO_I420_V_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_V_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_V_ROWSTRIDE (dw) + x] =
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s[x * GST_VIDEO_I420_V_ROWSTRIDE (sw) + (sw / 2 - 1 - y)];
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}
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}
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break;
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case GST_VIDEO_FLIP_METHOD_180:
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/* Flip Y */
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for (y = 0; y < dh; y++) {
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for (x = 0; x < dw; x++) {
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d[y * GST_VIDEO_I420_Y_ROWSTRIDE (dw) + x] =
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s[(sh - 1 - y) * GST_VIDEO_I420_Y_ROWSTRIDE (sw) + (sw - 1 - x)];
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}
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}
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/* Flip U */
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s = src + GST_VIDEO_I420_U_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_U_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_U_ROWSTRIDE (dw) + x] =
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s[(sh / 2 - 1 - y) * GST_VIDEO_I420_U_ROWSTRIDE (sw) + (sw / 2 -
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1 - x)];
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}
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}
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/* Flip V */
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s = src + GST_VIDEO_I420_V_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_V_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_V_ROWSTRIDE (dw) + x] =
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s[(sh / 2 - 1 - y) * GST_VIDEO_I420_V_ROWSTRIDE (sw) + (sw / 2 -
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1 - x)];
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}
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}
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break;
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case GST_VIDEO_FLIP_METHOD_HORIZ:
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/* Flip Y */
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for (y = 0; y < dh; y++) {
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for (x = 0; x < dw; x++) {
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d[y * GST_VIDEO_I420_Y_ROWSTRIDE (dw) + x] =
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s[y * GST_VIDEO_I420_Y_ROWSTRIDE (sw) + (sw - 1 - x)];
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}
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}
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/* Flip U */
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s = src + GST_VIDEO_I420_U_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_U_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_U_ROWSTRIDE (dw) + x] =
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s[y * GST_VIDEO_I420_U_ROWSTRIDE (sw) + (sw / 2 - 1 - x)];
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}
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}
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/* Flip V */
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s = src + GST_VIDEO_I420_V_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_V_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_V_ROWSTRIDE (dw) + x] =
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s[y * GST_VIDEO_I420_V_ROWSTRIDE (sw) + (sw / 2 - 1 - x)];
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}
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}
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break;
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case GST_VIDEO_FLIP_METHOD_VERT:
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/* Flip Y */
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for (y = 0; y < dh; y++) {
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for (x = 0; x < dw; x++) {
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d[y * GST_VIDEO_I420_Y_ROWSTRIDE (dw) + x] =
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s[(sh - 1 - y) * GST_VIDEO_I420_Y_ROWSTRIDE (sw) + x];
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}
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}
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/* Flip U */
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s = src + GST_VIDEO_I420_U_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_U_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_U_ROWSTRIDE (dw) + x] =
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s[(sh / 2 - 1 - y) * GST_VIDEO_I420_U_ROWSTRIDE (sw) + x];
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}
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}
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/* Flip V */
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s = src + GST_VIDEO_I420_V_OFFSET (sw, sh);
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d = dest + GST_VIDEO_I420_V_OFFSET (dw, dh);
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for (y = 0; y < dh / 2; y++) {
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for (x = 0; x < dw / 2; x++) {
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d[y * GST_VIDEO_I420_V_ROWSTRIDE (dw) + x] =
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s[(sh / 2 - 1 - y) * GST_VIDEO_I420_V_ROWSTRIDE (sw) + x];
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}
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}
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break;
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case GST_VIDEO_FLIP_METHOD_TRANS:
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/* Flip Y */
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for (y = 0; y < dh; y++) {
|
|
for (x = 0; x < dw; x++) {
|
|
d[y * GST_VIDEO_I420_Y_ROWSTRIDE (dw) + x] =
|
|
s[x * GST_VIDEO_I420_Y_ROWSTRIDE (sw) + y];
|
|
}
|
|
}
|
|
/* Flip U */
|
|
s = src + GST_VIDEO_I420_U_OFFSET (sw, sh);
|
|
d = dest + GST_VIDEO_I420_U_OFFSET (dw, dh);
|
|
for (y = 0; y < dh / 2; y++) {
|
|
for (x = 0; x < dw / 2; x++) {
|
|
d[y * GST_VIDEO_I420_U_ROWSTRIDE (dw) + x] =
|
|
s[x * GST_VIDEO_I420_U_ROWSTRIDE (sw) + y];
|
|
}
|
|
}
|
|
/* Flip V */
|
|
s = src + GST_VIDEO_I420_V_OFFSET (sw, sh);
|
|
d = dest + GST_VIDEO_I420_V_OFFSET (dw, dh);
|
|
for (y = 0; y < dh / 2; y++) {
|
|
for (x = 0; x < dw / 2; x++) {
|
|
d[y * GST_VIDEO_I420_V_ROWSTRIDE (dw) + x] =
|
|
s[x * GST_VIDEO_I420_V_ROWSTRIDE (sw) + y];
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_OTHER:
|
|
/* Flip Y */
|
|
for (y = 0; y < dh; y++) {
|
|
for (x = 0; x < dw; x++) {
|
|
d[y * GST_VIDEO_I420_Y_ROWSTRIDE (dw) + x] =
|
|
s[(sh - 1 - x) * GST_VIDEO_I420_Y_ROWSTRIDE (sw) + (sw - 1 - y)];
|
|
}
|
|
}
|
|
/* Flip U */
|
|
s = src + GST_VIDEO_I420_U_OFFSET (sw, sh);
|
|
d = dest + GST_VIDEO_I420_U_OFFSET (dw, dh);
|
|
for (y = 0; y < dh / 2; y++) {
|
|
for (x = 0; x < dw / 2; x++) {
|
|
d[y * GST_VIDEO_I420_U_ROWSTRIDE (dw) + x] =
|
|
s[(sh / 2 - 1 - x) * GST_VIDEO_I420_U_ROWSTRIDE (sw) + (sw / 2 -
|
|
1 - y)];
|
|
}
|
|
}
|
|
/* Flip V */
|
|
s = src + GST_VIDEO_I420_V_OFFSET (sw, sh);
|
|
d = dest + GST_VIDEO_I420_V_OFFSET (dw, dh);
|
|
for (y = 0; y < dh / 2; y++) {
|
|
for (x = 0; x < dw / 2; x++) {
|
|
d[y * GST_VIDEO_I420_V_ROWSTRIDE (dw) + x] =
|
|
s[(sh / 2 - 1 - x) * GST_VIDEO_I420_V_ROWSTRIDE (sw) + (sw / 2 -
|
|
1 - y)];
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_IDENTITY:
|
|
memcpy (d, s, GST_VIDEO_I420_SIZE (dw, dh));
|
|
break;
|
|
default:
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_video_flip_transform (GstBaseTransform * trans, GstBuffer * in,
|
|
GstBuffer * out)
|
|
{
|
|
GstVideoFlip *videoflip;
|
|
gpointer dest, src;
|
|
int sw, sh, dw, dh;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
videoflip = GST_VIDEO_FLIP (trans);
|
|
|
|
gst_buffer_stamp (out, in);
|
|
|
|
src = GST_BUFFER_DATA (in);
|
|
dest = GST_BUFFER_DATA (out);
|
|
sw = videoflip->from_width;
|
|
sh = videoflip->from_height;
|
|
dw = videoflip->to_width;
|
|
dh = videoflip->to_height;
|
|
|
|
GST_LOG_OBJECT (videoflip, "videoflip: scaling planar 4:1:1 %dx%d to %dx%d",
|
|
sw, sh, dw, dh);
|
|
|
|
ret = gst_video_flip_flip (videoflip, dest, src, sw, sh, dw, dh);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_video_flip_handle_src_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
GstVideoFlip *vf;
|
|
gboolean ret;
|
|
gdouble new_x, new_y, x, y;
|
|
GstStructure *structure;
|
|
|
|
vf = GST_VIDEO_FLIP (gst_pad_get_parent (pad));
|
|
|
|
GST_DEBUG_OBJECT (vf, "handling %s event", GST_EVENT_TYPE_NAME (event));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_NAVIGATION:
|
|
event =
|
|
GST_EVENT (gst_mini_object_make_writable (GST_MINI_OBJECT (event)));
|
|
|
|
structure = (GstStructure *) gst_event_get_structure (event);
|
|
if (gst_structure_get_double (structure, "pointer_x", &x) &&
|
|
gst_structure_get_double (structure, "pointer_y", &y)) {
|
|
GST_DEBUG_OBJECT (vf, "converting %fx%f", x, y);
|
|
switch (vf->method) {
|
|
case GST_VIDEO_FLIP_METHOD_90R:
|
|
new_x = y;
|
|
new_y = vf->to_width - x;
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_90L:
|
|
new_x = vf->to_height - y;
|
|
new_y = x;
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_OTHER:
|
|
new_x = vf->to_height - y;
|
|
new_y = vf->to_width - x;
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_TRANS:
|
|
new_x = y;
|
|
new_y = x;
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_180:
|
|
new_x = vf->to_width - x;
|
|
new_y = vf->to_height - y;
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_HORIZ:
|
|
new_x = vf->to_width - x;
|
|
new_y = y;
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_VERT:
|
|
new_x = x;
|
|
new_y = vf->to_height - y;
|
|
break;
|
|
default:
|
|
new_x = x;
|
|
new_y = y;
|
|
break;
|
|
}
|
|
GST_DEBUG_OBJECT (vf, "to %fx%f", x, y);
|
|
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE, new_x,
|
|
"pointer_y", G_TYPE_DOUBLE, new_y, NULL);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = gst_pad_event_default (pad, event);
|
|
|
|
gst_object_unref (vf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_video_flip_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstVideoFlip *videoflip;
|
|
GstVideoFilter *videofilter;
|
|
|
|
g_return_if_fail (GST_IS_VIDEO_FLIP (object));
|
|
videoflip = GST_VIDEO_FLIP (object);
|
|
videofilter = GST_VIDEO_FILTER (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_METHOD:
|
|
{
|
|
GstVideoFlipMethod method;
|
|
|
|
method = g_value_get_enum (value);
|
|
if (method != videoflip->method) {
|
|
GstBaseTransform *btrans = GST_BASE_TRANSFORM (videoflip);
|
|
|
|
g_mutex_lock (btrans->transform_lock);
|
|
gst_pad_set_caps (btrans->sinkpad, NULL);
|
|
gst_pad_set_caps (btrans->srcpad, NULL);
|
|
g_mutex_unlock (btrans->transform_lock);
|
|
videoflip->method = method;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_video_flip_get_property (GObject * object, guint prop_id, GValue * value,
|
|
GParamSpec * pspec)
|
|
{
|
|
GstVideoFlip *videoflip;
|
|
|
|
g_return_if_fail (GST_IS_VIDEO_FLIP (object));
|
|
videoflip = GST_VIDEO_FLIP (object);
|
|
|
|
switch (prop_id) {
|
|
case ARG_METHOD:
|
|
g_value_set_enum (value, videoflip->method);
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_video_flip_base_init (gpointer g_class)
|
|
{
|
|
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
|
|
|
|
gst_element_class_set_details (element_class, &video_flip_details);
|
|
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_video_flip_sink_template));
|
|
gst_element_class_add_pad_template (element_class,
|
|
gst_static_pad_template_get (&gst_video_flip_src_template));
|
|
}
|
|
|
|
static void
|
|
gst_video_flip_class_init (gpointer klass, gpointer class_data)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstBaseTransformClass *trans_class;
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
trans_class = (GstBaseTransformClass *) klass;
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
gobject_class->set_property = gst_video_flip_set_property;
|
|
gobject_class->get_property = gst_video_flip_get_property;
|
|
|
|
g_object_class_install_property (gobject_class, ARG_METHOD,
|
|
g_param_spec_enum ("method", "method", "method",
|
|
GST_TYPE_VIDEO_FLIP_METHOD, GST_VIDEO_FLIP_METHOD_90R,
|
|
G_PARAM_READWRITE));
|
|
|
|
trans_class->transform_caps =
|
|
GST_DEBUG_FUNCPTR (gst_video_flip_transform_caps);
|
|
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_flip_set_caps);
|
|
trans_class->get_unit_size = GST_DEBUG_FUNCPTR (gst_video_flip_get_unit_size);
|
|
trans_class->transform = GST_DEBUG_FUNCPTR (gst_video_flip_transform);
|
|
}
|
|
|
|
static void
|
|
gst_video_flip_init (GTypeInstance * instance, gpointer g_class)
|
|
{
|
|
GstVideoFlip *videoflip = GST_VIDEO_FLIP (instance);
|
|
GstBaseTransform *btrans = GST_BASE_TRANSFORM (instance);
|
|
|
|
GST_DEBUG_OBJECT (videoflip, "gst_video_flip_init");
|
|
|
|
videoflip->method = GST_VIDEO_FLIP_METHOD_90R;
|
|
|
|
gst_pad_set_event_function (btrans->srcpad,
|
|
GST_DEBUG_FUNCPTR (gst_video_flip_handle_src_event));
|
|
}
|
|
|
|
static gboolean
|
|
plugin_init (GstPlugin * plugin)
|
|
{
|
|
GST_DEBUG_CATEGORY_INIT (video_flip_debug, "videoflip", 0, "videoflip");
|
|
|
|
return gst_element_register (plugin, "videoflip", GST_RANK_NONE,
|
|
GST_TYPE_VIDEO_FLIP);
|
|
}
|
|
|
|
GType
|
|
gst_video_flip_get_type (void)
|
|
{
|
|
static GType video_flip_type = 0;
|
|
|
|
if (!video_flip_type) {
|
|
static const GTypeInfo video_flip_info = {
|
|
sizeof (GstVideoFlipClass),
|
|
gst_video_flip_base_init,
|
|
NULL,
|
|
gst_video_flip_class_init,
|
|
NULL,
|
|
NULL,
|
|
sizeof (GstVideoFlip),
|
|
0,
|
|
gst_video_flip_init,
|
|
};
|
|
|
|
video_flip_type = g_type_register_static (GST_TYPE_VIDEO_FILTER,
|
|
"GstVideoFlip", &video_flip_info, 0);
|
|
}
|
|
return video_flip_type;
|
|
}
|
|
|
|
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
|
|
GST_VERSION_MINOR,
|
|
"videoflip",
|
|
"Flips and rotates video",
|
|
plugin_init, VERSION, GST_LICENSE, GST_PACKAGE_NAME, GST_PACKAGE_ORIGIN);
|