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19216e7218
Fixes unused variable warnings when GStreamer's debugging system has been disabled.
862 lines
27 KiB
C
862 lines
27 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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* Copyright (C) <2010> Sebastian Dröge <sebastian.droege@collabora.co.uk>
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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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* Flips and rotates video.
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*
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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch videotestsrc ! videoflip method=clockwise ! ffmpegcolorspace ! ximagesink
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* ]| This pipeline flips the test image 90 degrees clockwise.
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* </refsect2>
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*
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* Last reviewed on 2010-04-18 (0.10.22)
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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/gst.h>
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#include <gst/controller/gstcontroller.h>
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#include <gst/video/video.h>
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/* GstVideoFlip properties */
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enum
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{
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PROP_0,
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PROP_METHOD
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/* FILL ME */
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};
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#define PROP_METHOD_DEFAULT GST_VIDEO_FLIP_METHOD_IDENTITY
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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 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 ("AYUV") ";"
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GST_VIDEO_CAPS_ARGB ";" GST_VIDEO_CAPS_BGRA ";"
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GST_VIDEO_CAPS_ABGR ";" GST_VIDEO_CAPS_RGBA ";"
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GST_VIDEO_CAPS_YUV ("Y444") ";"
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GST_VIDEO_CAPS_xRGB ";" GST_VIDEO_CAPS_RGBx ";"
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GST_VIDEO_CAPS_xBGR ";" GST_VIDEO_CAPS_BGRx ";"
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GST_VIDEO_CAPS_RGB ";" GST_VIDEO_CAPS_BGR ";"
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GST_VIDEO_CAPS_YUV ("I420") ";"
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GST_VIDEO_CAPS_YUV ("YV12") ";" GST_VIDEO_CAPS_YUV ("IYUV")
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)
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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 ("AYUV") ";"
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GST_VIDEO_CAPS_ARGB ";" GST_VIDEO_CAPS_BGRA ";"
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GST_VIDEO_CAPS_ABGR ";" GST_VIDEO_CAPS_RGBA ";"
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GST_VIDEO_CAPS_YUV ("Y444") ";"
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GST_VIDEO_CAPS_xRGB ";" GST_VIDEO_CAPS_RGBx ";"
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GST_VIDEO_CAPS_xBGR ";" GST_VIDEO_CAPS_BGRx ";"
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GST_VIDEO_CAPS_RGB ";" GST_VIDEO_CAPS_BGR ";"
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GST_VIDEO_CAPS_YUV ("I420") ";"
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GST_VIDEO_CAPS_YUV ("YV12") ";" GST_VIDEO_CAPS_YUV ("IYUV")
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)
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);
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#define GST_TYPE_VIDEO_FLIP_METHOD (gst_video_flip_method_get_type())
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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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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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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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GST_BOILERPLATE (GstVideoFlip, gst_video_flip, GstVideoFilter,
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GST_TYPE_VIDEO_FILTER);
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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 = GST_VIDEO_FLIP (trans);
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GstCaps *ret;
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gint width, height, i;
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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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gint par_n, par_d;
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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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if (gst_structure_get_fraction (structure, "pixel-aspect-ratio",
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&par_n, &par_d)) {
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if (par_n != 1 || par_d != 1) {
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GValue val = { 0, };
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g_value_init (&val, GST_TYPE_FRACTION);
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gst_value_set_fraction (&val, par_d, par_n);
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gst_structure_set_value (structure, "pixel-aspect-ratio", &val);
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g_value_unset (&val);
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}
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}
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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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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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GstVideoFormat format;
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gint width, height;
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if (!gst_video_format_parse_caps (caps, &format, &width, &height))
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return FALSE;
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*size = gst_video_format_get_size (format, width, height);
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GST_DEBUG_OBJECT (btrans, "our frame size is %d bytes (%dx%d)", *size,
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width, height);
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return TRUE;
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}
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static void
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gst_video_flip_planar_yuv (GstVideoFlip * videoflip, guint8 * dest,
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const guint8 * src)
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{
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gint x, y;
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guint8 const *s;
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guint8 *d;
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GstVideoFormat format = videoflip->format;
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gint sw = videoflip->from_width;
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gint sh = videoflip->from_height;
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gint dw = videoflip->to_width;
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gint dh = videoflip->to_height;
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gint src_y_stride, src_u_stride, src_v_stride;
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gint src_y_offset, src_u_offset, src_v_offset;
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gint src_y_height, src_u_height, src_v_height;
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gint src_y_width, src_u_width, src_v_width;
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gint dest_y_stride, dest_u_stride, dest_v_stride;
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gint dest_y_offset, dest_u_offset, dest_v_offset;
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gint dest_y_height, dest_u_height, dest_v_height;
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gint dest_y_width, dest_u_width, dest_v_width;
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src_y_stride = gst_video_format_get_row_stride (format, 0, sw);
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src_u_stride = gst_video_format_get_row_stride (format, 1, sw);
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src_v_stride = gst_video_format_get_row_stride (format, 2, sw);
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dest_y_stride = gst_video_format_get_row_stride (format, 0, dw);
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dest_u_stride = gst_video_format_get_row_stride (format, 1, dw);
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dest_v_stride = gst_video_format_get_row_stride (format, 2, dw);
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src_y_offset = gst_video_format_get_component_offset (format, 0, sw, sh);
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src_u_offset = gst_video_format_get_component_offset (format, 1, sw, sh);
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src_v_offset = gst_video_format_get_component_offset (format, 2, sw, sh);
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dest_y_offset = gst_video_format_get_component_offset (format, 0, dw, dh);
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dest_u_offset = gst_video_format_get_component_offset (format, 1, dw, dh);
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dest_v_offset = gst_video_format_get_component_offset (format, 2, dw, dh);
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src_y_width = gst_video_format_get_component_width (format, 0, sw);
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src_u_width = gst_video_format_get_component_width (format, 1, sw);
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src_v_width = gst_video_format_get_component_width (format, 2, sw);
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dest_y_width = gst_video_format_get_component_width (format, 0, dw);
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dest_u_width = gst_video_format_get_component_width (format, 1, dw);
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dest_v_width = gst_video_format_get_component_width (format, 2, dw);
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src_y_height = gst_video_format_get_component_height (format, 0, sh);
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src_u_height = gst_video_format_get_component_height (format, 1, sh);
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src_v_height = gst_video_format_get_component_height (format, 2, sh);
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dest_y_height = gst_video_format_get_component_height (format, 0, dh);
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dest_u_height = gst_video_format_get_component_height (format, 1, dh);
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dest_v_height = gst_video_format_get_component_height (format, 2, dh);
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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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s = src + src_y_offset;
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d = dest + dest_y_offset;
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for (y = 0; y < dest_y_height; y++) {
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for (x = 0; x < dest_y_width; x++) {
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d[y * dest_y_stride + x] =
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s[(src_y_height - 1 - x) * src_y_stride + y];
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}
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}
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/* Flip U */
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s = src + src_u_offset;
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d = dest + dest_u_offset;
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for (y = 0; y < dest_u_height; y++) {
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for (x = 0; x < dest_u_width; x++) {
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d[y * dest_u_stride + x] =
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s[(src_u_height - 1 - x) * src_u_stride + y];
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}
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}
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/* Flip V */
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s = src + src_v_offset;
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d = dest + dest_v_offset;
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for (y = 0; y < dest_v_height; y++) {
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for (x = 0; x < dest_v_width; x++) {
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d[y * dest_v_stride + x] =
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s[(src_v_height - 1 - x) * src_v_stride + 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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s = src + src_y_offset;
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d = dest + dest_y_offset;
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for (y = 0; y < dest_y_height; y++) {
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for (x = 0; x < dest_y_width; x++) {
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d[y * dest_y_stride + x] =
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s[x * src_y_stride + (src_y_width - 1 - y)];
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}
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}
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/* Flip U */
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s = src + src_u_offset;
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d = dest + dest_u_offset;
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for (y = 0; y < dest_u_height; y++) {
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for (x = 0; x < dest_u_width; x++) {
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d[y * dest_u_stride + x] =
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s[x * src_u_stride + (src_u_width - 1 - y)];
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}
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}
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/* Flip V */
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s = src + src_v_offset;
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d = dest + dest_v_offset;
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for (y = 0; y < dest_v_height; y++) {
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for (x = 0; x < dest_v_width; x++) {
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d[y * dest_v_stride + x] =
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s[x * src_v_stride + (src_v_width - 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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s = src + src_y_offset;
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d = dest + dest_y_offset;
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for (y = 0; y < dest_y_height; y++) {
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for (x = 0; x < dest_y_width; x++) {
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d[y * dest_y_stride + x] =
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s[(src_y_height - 1 - y) * src_y_stride + (src_y_width - 1 - x)];
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}
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}
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/* Flip U */
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s = src + src_u_offset;
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d = dest + dest_u_offset;
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for (y = 0; y < dest_u_height; y++) {
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for (x = 0; x < dest_u_width; x++) {
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d[y * dest_u_stride + x] =
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s[(src_u_height - 1 - y) * src_u_stride + (src_u_width - 1 - x)];
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}
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}
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/* Flip V */
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s = src + src_v_offset;
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d = dest + dest_v_offset;
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for (y = 0; y < dest_v_height; y++) {
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for (x = 0; x < dest_v_width; x++) {
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d[y * dest_v_stride + x] =
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s[(src_v_height - 1 - y) * src_v_stride + (src_v_width - 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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s = src + src_y_offset;
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d = dest + dest_y_offset;
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for (y = 0; y < dest_y_height; y++) {
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for (x = 0; x < dest_y_width; x++) {
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d[y * dest_y_stride + x] =
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s[y * src_y_stride + (src_y_width - 1 - x)];
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}
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}
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/* Flip U */
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s = src + src_u_offset;
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d = dest + dest_u_offset;
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for (y = 0; y < dest_u_height; y++) {
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for (x = 0; x < dest_u_width; x++) {
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d[y * dest_u_stride + x] =
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s[y * src_u_stride + (src_u_width - 1 - x)];
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}
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}
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/* Flip V */
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s = src + src_v_offset;
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d = dest + dest_v_offset;
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for (y = 0; y < dest_v_height; y++) {
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for (x = 0; x < dest_v_width; x++) {
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d[y * dest_v_stride + x] =
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s[y * src_v_stride + (src_v_width - 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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s = src + src_y_offset;
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d = dest + dest_y_offset;
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for (y = 0; y < dest_y_height; y++) {
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for (x = 0; x < dest_y_width; x++) {
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d[y * dest_y_stride + x] =
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s[(src_y_height - 1 - y) * src_y_stride + x];
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}
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}
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/* Flip U */
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s = src + src_u_offset;
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d = dest + dest_u_offset;
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for (y = 0; y < dest_u_height; y++) {
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for (x = 0; x < dest_u_width; x++) {
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d[y * dest_u_stride + x] =
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s[(src_u_height - 1 - y) * src_u_stride + x];
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}
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}
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/* Flip V */
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s = src + src_v_offset;
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d = dest + dest_v_offset;
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for (y = 0; y < dest_v_height; y++) {
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for (x = 0; x < dest_v_width; x++) {
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d[y * dest_v_stride + x] =
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s[(src_v_height - 1 - y) * src_v_stride + 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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s = src + src_y_offset;
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d = dest + dest_y_offset;
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for (y = 0; y < dest_y_height; y++) {
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for (x = 0; x < dest_y_width; x++) {
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d[y * dest_y_stride + x] = s[x * src_y_stride + y];
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}
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}
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/* Flip U */
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s = src + src_u_offset;
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d = dest + dest_u_offset;
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for (y = 0; y < dest_u_height; y++) {
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for (x = 0; x < dest_u_width; x++) {
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d[y * dest_u_stride + x] = s[x * src_u_stride + y];
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}
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}
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/* Flip V */
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s = src + src_v_offset;
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d = dest + dest_v_offset;
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for (y = 0; y < dest_u_height; y++) {
|
|
for (x = 0; x < dest_u_width; x++) {
|
|
d[y * dest_v_stride + x] = s[x * src_v_stride + y];
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_OTHER:
|
|
/* Flip Y */
|
|
s = src + src_y_offset;
|
|
d = dest + dest_y_offset;
|
|
for (y = 0; y < dest_y_height; y++) {
|
|
for (x = 0; x < dest_y_width; x++) {
|
|
d[y * dest_y_stride + x] =
|
|
s[(src_y_height - 1 - x) * src_y_stride + (src_y_width - 1 - y)];
|
|
}
|
|
}
|
|
/* Flip U */
|
|
s = src + src_u_offset;
|
|
d = dest + dest_u_offset;
|
|
for (y = 0; y < dest_u_height; y++) {
|
|
for (x = 0; x < dest_u_width; x++) {
|
|
d[y * dest_u_stride + x] =
|
|
s[(src_u_height - 1 - x) * src_u_stride + (src_u_width - 1 - y)];
|
|
}
|
|
}
|
|
/* Flip V */
|
|
s = src + src_v_offset;
|
|
d = dest + dest_v_offset;
|
|
for (y = 0; y < dest_v_height; y++) {
|
|
for (x = 0; x < dest_v_width; x++) {
|
|
d[y * dest_v_stride + x] =
|
|
s[(src_v_height - 1 - x) * src_v_stride + (src_v_width - 1 - y)];
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_IDENTITY:
|
|
g_assert_not_reached ();
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_video_flip_packed_simple (GstVideoFlip * videoflip, guint8 * dest,
|
|
const guint8 * src)
|
|
{
|
|
gint x, y, z;
|
|
guint8 const *s = src;
|
|
guint8 *d = dest;
|
|
GstVideoFormat format = videoflip->format;
|
|
gint sw = videoflip->from_width;
|
|
gint sh = videoflip->from_height;
|
|
gint dw = videoflip->to_width;
|
|
gint dh = videoflip->to_height;
|
|
gint src_stride, dest_stride;
|
|
gint bpp;
|
|
|
|
src_stride = gst_video_format_get_row_stride (format, 0, sw);
|
|
dest_stride = gst_video_format_get_row_stride (format, 0, dw);
|
|
/* This is only true for non-subsampled formats! */
|
|
bpp = gst_video_format_get_pixel_stride (format, 0);
|
|
|
|
switch (videoflip->method) {
|
|
case GST_VIDEO_FLIP_METHOD_90R:
|
|
for (y = 0; y < dh; y++) {
|
|
for (x = 0; x < dw; x++) {
|
|
for (z = 0; z < bpp; z++) {
|
|
d[y * dest_stride + x * bpp + z] =
|
|
s[(sh - 1 - x) * src_stride + y * bpp + z];
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_90L:
|
|
for (y = 0; y < dh; y++) {
|
|
for (x = 0; x < dw; x++) {
|
|
for (z = 0; z < bpp; z++) {
|
|
d[y * dest_stride + x * bpp + z] =
|
|
s[x * src_stride + (sw - 1 - y) * bpp + z];
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_180:
|
|
for (y = 0; y < dh; y++) {
|
|
for (x = 0; x < dw; x++) {
|
|
for (z = 0; z < bpp; z++) {
|
|
d[y * dest_stride + x * bpp + z] =
|
|
s[(sh - 1 - y) * src_stride + (sw - 1 - x) * bpp + z];
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_HORIZ:
|
|
for (y = 0; y < dh; y++) {
|
|
for (x = 0; x < dw; x++) {
|
|
for (z = 0; z < bpp; z++) {
|
|
d[y * dest_stride + x * bpp + z] =
|
|
s[y * src_stride + (sw - 1 - x) * bpp + z];
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_VERT:
|
|
for (y = 0; y < dh; y++) {
|
|
for (x = 0; x < dw; x++) {
|
|
for (z = 0; z < bpp; z++) {
|
|
d[y * dest_stride + x * bpp + z] =
|
|
s[(sh - 1 - y) * src_stride + x * bpp + z];
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_TRANS:
|
|
for (y = 0; y < dh; y++) {
|
|
for (x = 0; x < dw; x++) {
|
|
for (z = 0; z < bpp; z++) {
|
|
d[y * dest_stride + x * bpp + z] = s[x * src_stride + y * bpp + z];
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_OTHER:
|
|
for (y = 0; y < dh; y++) {
|
|
for (x = 0; x < dw; x++) {
|
|
for (z = 0; z < bpp; z++) {
|
|
d[y * dest_stride + x * bpp + z] =
|
|
s[(sh - 1 - x) * src_stride + (sw - 1 - y) * bpp + z];
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_IDENTITY:
|
|
g_assert_not_reached ();
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_video_flip_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
|
|
GstCaps * outcaps)
|
|
{
|
|
GstVideoFlip *vf = GST_VIDEO_FLIP (btrans);
|
|
GstVideoFormat in_format, out_format;
|
|
gboolean ret = FALSE;
|
|
|
|
vf->process = NULL;
|
|
|
|
if (!gst_video_format_parse_caps (incaps, &in_format, &vf->from_width,
|
|
&vf->from_height)
|
|
|| !gst_video_format_parse_caps (outcaps, &out_format, &vf->to_width,
|
|
&vf->to_height))
|
|
goto invalid_caps;
|
|
|
|
if (in_format != out_format)
|
|
goto invalid_caps;
|
|
vf->format = in_format;
|
|
|
|
/* Check that they are correct */
|
|
switch (vf->method) {
|
|
case GST_VIDEO_FLIP_METHOD_90R:
|
|
case GST_VIDEO_FLIP_METHOD_90L:
|
|
case GST_VIDEO_FLIP_METHOD_TRANS:
|
|
case GST_VIDEO_FLIP_METHOD_OTHER:
|
|
if ((vf->from_width != vf->to_height) ||
|
|
(vf->from_height != vf->to_width)) {
|
|
GST_ERROR_OBJECT (vf, "we are inverting width and height but caps "
|
|
"are not correct : %dx%d to %dx%d", vf->from_width,
|
|
vf->from_height, vf->to_width, vf->to_height);
|
|
goto beach;
|
|
}
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_IDENTITY:
|
|
|
|
break;
|
|
case GST_VIDEO_FLIP_METHOD_180:
|
|
case GST_VIDEO_FLIP_METHOD_HORIZ:
|
|
case GST_VIDEO_FLIP_METHOD_VERT:
|
|
if ((vf->from_width != vf->to_width) ||
|
|
(vf->from_height != vf->to_height)) {
|
|
GST_ERROR_OBJECT (vf, "we are keeping width and height but caps "
|
|
"are not correct : %dx%d to %dx%d", vf->from_width,
|
|
vf->from_height, vf->to_width, vf->to_height);
|
|
goto beach;
|
|
}
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
ret = TRUE;
|
|
|
|
switch (vf->format) {
|
|
case GST_VIDEO_FORMAT_I420:
|
|
case GST_VIDEO_FORMAT_YV12:
|
|
case GST_VIDEO_FORMAT_Y444:
|
|
vf->process = gst_video_flip_planar_yuv;
|
|
break;
|
|
case GST_VIDEO_FORMAT_AYUV:
|
|
case GST_VIDEO_FORMAT_ARGB:
|
|
case GST_VIDEO_FORMAT_ABGR:
|
|
case GST_VIDEO_FORMAT_RGBA:
|
|
case GST_VIDEO_FORMAT_BGRA:
|
|
case GST_VIDEO_FORMAT_xRGB:
|
|
case GST_VIDEO_FORMAT_xBGR:
|
|
case GST_VIDEO_FORMAT_RGBx:
|
|
case GST_VIDEO_FORMAT_BGRx:
|
|
case GST_VIDEO_FORMAT_RGB:
|
|
case GST_VIDEO_FORMAT_BGR:
|
|
vf->process = gst_video_flip_packed_simple;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
beach:
|
|
return ret && (vf->process != NULL);
|
|
|
|
invalid_caps:
|
|
GST_ERROR_OBJECT (vf, "Invalid caps: %" GST_PTR_FORMAT " -> %" GST_PTR_FORMAT,
|
|
incaps, outcaps);
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gst_video_flip_before_transform (GstBaseTransform * trans, GstBuffer * in)
|
|
{
|
|
GstVideoFlip *videoflip = GST_VIDEO_FLIP (trans);
|
|
GstClockTime timestamp, stream_time;
|
|
|
|
timestamp = GST_BUFFER_TIMESTAMP (in);
|
|
stream_time =
|
|
gst_segment_to_stream_time (&trans->segment, GST_FORMAT_TIME, timestamp);
|
|
|
|
GST_DEBUG_OBJECT (videoflip, "sync to %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (timestamp));
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (stream_time))
|
|
gst_object_sync_values (G_OBJECT (videoflip), stream_time);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_video_flip_transform (GstBaseTransform * trans, GstBuffer * in,
|
|
GstBuffer * out)
|
|
{
|
|
GstVideoFlip *videoflip = GST_VIDEO_FLIP (trans);
|
|
guint8 *dest;
|
|
const guint8 *src;
|
|
|
|
if (G_UNLIKELY (videoflip->process == NULL))
|
|
goto not_negotiated;
|
|
|
|
src = GST_BUFFER_DATA (in);
|
|
dest = GST_BUFFER_DATA (out);
|
|
|
|
GST_LOG_OBJECT (videoflip, "videoflip: flipping %dx%d to %dx%d (%s)",
|
|
videoflip->from_width, videoflip->from_height, videoflip->to_width,
|
|
videoflip->to_height, video_flip_methods[videoflip->method].value_nick);
|
|
|
|
GST_OBJECT_LOCK (videoflip);
|
|
videoflip->process (videoflip, dest, src);
|
|
GST_OBJECT_UNLOCK (videoflip);
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
not_negotiated:
|
|
GST_ERROR_OBJECT (videoflip, "Not negotiated yet");
|
|
return GST_FLOW_NOT_NEGOTIATED;
|
|
}
|
|
|
|
static gboolean
|
|
gst_video_flip_src_event (GstBaseTransform * trans, GstEvent * event)
|
|
{
|
|
GstVideoFlip *vf = GST_VIDEO_FLIP (trans);
|
|
gdouble new_x, new_y, x, y;
|
|
GstStructure *structure;
|
|
|
|
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", new_x, new_y);
|
|
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE, new_x,
|
|
"pointer_y", G_TYPE_DOUBLE, new_y, NULL);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_video_flip_set_property (GObject * object, guint prop_id,
|
|
const GValue * value, GParamSpec * pspec)
|
|
{
|
|
GstVideoFlip *videoflip = GST_VIDEO_FLIP (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_METHOD:
|
|
{
|
|
GstVideoFlipMethod method;
|
|
|
|
method = g_value_get_enum (value);
|
|
GST_OBJECT_LOCK (videoflip);
|
|
if (method != videoflip->method) {
|
|
GstBaseTransform *btrans = GST_BASE_TRANSFORM (videoflip);
|
|
|
|
GST_DEBUG_OBJECT (videoflip, "Changing method from %s to %s",
|
|
video_flip_methods[videoflip->method].value_nick,
|
|
video_flip_methods[method].value_nick);
|
|
|
|
videoflip->method = method;
|
|
GST_OBJECT_UNLOCK (videoflip);
|
|
|
|
gst_base_transform_set_passthrough (btrans,
|
|
method == GST_VIDEO_FLIP_METHOD_IDENTITY);
|
|
gst_base_transform_reconfigure (btrans);
|
|
} else {
|
|
GST_OBJECT_UNLOCK (videoflip);
|
|
}
|
|
}
|
|
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 = GST_VIDEO_FLIP (object);
|
|
|
|
switch (prop_id) {
|
|
case PROP_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_simple (element_class, "Video flipper",
|
|
"Filter/Effect/Video",
|
|
"Flips and rotates video", "David Schleef <ds@schleef.org>");
|
|
|
|
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 (GstVideoFlipClass * klass)
|
|
{
|
|
GObjectClass *gobject_class = (GObjectClass *) klass;
|
|
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
|
|
|
|
GST_DEBUG_CATEGORY_INIT (video_flip_debug, "videoflip", 0, "videoflip");
|
|
|
|
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, PROP_METHOD,
|
|
g_param_spec_enum ("method", "method", "method",
|
|
GST_TYPE_VIDEO_FLIP_METHOD, PROP_METHOD_DEFAULT,
|
|
GST_PARAM_CONTROLLABLE | G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
|
|
|
|
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);
|
|
trans_class->before_transform =
|
|
GST_DEBUG_FUNCPTR (gst_video_flip_before_transform);
|
|
trans_class->src_event = GST_DEBUG_FUNCPTR (gst_video_flip_src_event);
|
|
}
|
|
|
|
static void
|
|
gst_video_flip_init (GstVideoFlip * videoflip, GstVideoFlipClass * klass)
|
|
{
|
|
videoflip->method = PROP_METHOD_DEFAULT;
|
|
gst_base_transform_set_passthrough (GST_BASE_TRANSFORM (videoflip), TRUE);
|
|
}
|