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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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619 lines
16 KiB
C
619 lines
16 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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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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/*#define DEBUG_ENABLED */
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#include <gstvideotestsrc.h>
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#include <string.h>
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#include <stdlib.h>
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/* elementfactory information */
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static GstElementDetails videotestsrc_details = {
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"Video test source",
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"Source/Video",
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"Creates a test video stream",
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VERSION,
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"David A. Schleef <ds@schleef.org>",
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"(C) 2002",
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};
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/* GstVideotestsrc signals and args */
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enum {
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/* FILL ME */
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LAST_SIGNAL
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};
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enum {
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ARG_0,
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ARG_WIDTH,
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ARG_HEIGHT,
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ARG_METHOD,
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/* FILL ME */
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};
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GST_PAD_TEMPLATE_FACTORY (src_templ,
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"src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_CAPS_NEW (
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"videotestsrc_caps",
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"video/raw",
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"format", GST_PROPS_LIST(
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GST_PROPS_FOURCC (GST_MAKE_FOURCC ('I','4','2','0')),
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GST_PROPS_FOURCC (GST_MAKE_FOURCC ('Y','V','1','2')),
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GST_PROPS_FOURCC (GST_MAKE_FOURCC ('R','G','B',' '))
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),
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"width", GST_PROPS_INT(640),
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"height", GST_PROPS_INT(480)
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)
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)
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#define GST_TYPE_VIDEOTESTSRC_METHOD (gst_videotestsrc_method_get_type())
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static GType
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gst_videotestsrc_method_get_type (void)
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{
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static GType videotestsrc_method_type = 0;
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static GEnumValue videotestsrc_methods[] = {
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{ GST_VIDEOTESTSRC_POINT_SAMPLE, "0", "Point Sample" },
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{ GST_VIDEOTESTSRC_NEAREST, "1", "Nearest" },
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{ GST_VIDEOTESTSRC_BILINEAR, "2", "Bilinear" },
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{ GST_VIDEOTESTSRC_BICUBIC, "3", "Bicubic" },
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{ 0, NULL, NULL },
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};
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if (!videotestsrc_method_type) {
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videotestsrc_method_type = g_enum_register_static ("GstVideotestsrcMethod", videotestsrc_methods);
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}
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return videotestsrc_method_type;
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}
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static void gst_videotestsrc_class_init (GstVideotestsrcClass *klass);
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static void gst_videotestsrc_init (GstVideotestsrc *videotestsrc);
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static void gst_videotestsrc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec);
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static void gst_videotestsrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec);
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static GstBuffer * gst_videotestsrc_get (GstPad *pad);
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static GstElementClass *parent_class = NULL;
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void gst_videotestsrc_setup (GstVideotestsrc *v);
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static void random_chars(unsigned char *dest, int nbytes);
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void gst_videotestsrc_smpte_I420 (GstVideotestsrc *v, unsigned char *dest, int w, int h);
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void gst_videotestsrc_smpte_YV12 (GstVideotestsrc *v, unsigned char *dest, int w, int h);
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void gst_videotestsrc_smpte_RGB (GstVideotestsrc *v, unsigned char *dest, int w, int h);
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GType
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gst_videotestsrc_get_type (void)
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{
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static GType videotestsrc_type = 0;
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if (!videotestsrc_type) {
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static const GTypeInfo videotestsrc_info = {
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sizeof(GstVideotestsrcClass), NULL,
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NULL,
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(GClassInitFunc)gst_videotestsrc_class_init,
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NULL,
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NULL,
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sizeof(GstVideotestsrc),
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0,
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(GInstanceInitFunc)gst_videotestsrc_init,
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};
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videotestsrc_type = g_type_register_static(GST_TYPE_ELEMENT, "GstVideotestsrc", &videotestsrc_info, 0);
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}
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return videotestsrc_type;
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}
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static void
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gst_videotestsrc_class_init (GstVideotestsrcClass *klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass*)klass;
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gstelement_class = (GstElementClass*)klass;
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_WIDTH,
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g_param_spec_int("width","width","width",
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G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_HEIGHT,
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g_param_spec_int("height","height","height",
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G_MININT,G_MAXINT,0,G_PARAM_READWRITE)); /* CHECKME */
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_METHOD,
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g_param_spec_enum("method","method","method",
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GST_TYPE_VIDEOTESTSRC_METHOD,0,G_PARAM_READWRITE)); /* CHECKME! */
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parent_class = g_type_class_ref(GST_TYPE_ELEMENT);
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gobject_class->set_property = gst_videotestsrc_set_property;
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gobject_class->get_property = gst_videotestsrc_get_property;
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}
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static GstPadConnectReturn
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gst_videotestsrc_srcconnect (GstPad *pad, GstCaps *caps)
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{
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GstVideotestsrc *videotestsrc;
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GST_DEBUG(0,"gst_videotestsrc_srcconnect");
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videotestsrc = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
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#if 0
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if (!GST_CAPS_IS_FIXED (caps)) {
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return GST_PAD_CONNECT_DELAYED;
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}
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#endif
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gst_caps_get_fourcc_int (caps, "format", &videotestsrc->format);
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gst_caps_get_int (caps, "width", &videotestsrc->width);
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gst_caps_get_int (caps, "height", &videotestsrc->height);
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GST_DEBUG (0,"format is 0x%08x\n",videotestsrc->format);
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switch(videotestsrc->format){
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case GST_MAKE_FOURCC('R','G','B',' '):
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videotestsrc->make_image = gst_videotestsrc_smpte_RGB;
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videotestsrc->bpp = 16;
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break;
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case GST_MAKE_FOURCC('I','4','2','0'):
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videotestsrc->make_image = gst_videotestsrc_smpte_I420;
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videotestsrc->bpp = 12;
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break;
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case GST_MAKE_FOURCC('Y','U','Y','V'):
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//videotestsrc->make_image = gst_videotestsrc_smpte_YUYV;
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return GST_PAD_CONNECT_REFUSED;
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break;
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case GST_MAKE_FOURCC('Y','V','1','2'):
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videotestsrc->make_image = gst_videotestsrc_smpte_YV12;
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videotestsrc->bpp = 12;
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break;
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default:
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return GST_PAD_CONNECT_REFUSED;
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}
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GST_DEBUG (0,"size %d x %d",videotestsrc->width, videotestsrc->height);
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return GST_PAD_CONNECT_OK;
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}
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static void
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gst_videotestsrc_init (GstVideotestsrc *videotestsrc)
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{
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GST_DEBUG(0,"gst_videotestsrc_init");
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/*gst_pad_set_negotiate_function(videotestsrc->sinkpad,videotestsrc_negotiate_sink); */
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//gst_element_add_pad(GST_ELEMENT(videotestsrc),videotestsrc->sinkpad);
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//gst_pad_set_chain_function(videotestsrc->sinkpad,gst_videotestsrc_chain);
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videotestsrc->srcpad = gst_pad_new_from_template (
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GST_PAD_TEMPLATE_GET (src_templ), "src");
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/*gst_pad_set_negotiate_function(videotestsrc->srcpad,videotestsrc_negotiate_src); */
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gst_element_add_pad(GST_ELEMENT(videotestsrc),videotestsrc->srcpad);
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gst_pad_set_get_function(videotestsrc->srcpad,gst_videotestsrc_get);
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gst_pad_set_connect_function(videotestsrc->srcpad,gst_videotestsrc_srcconnect);
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#if 0
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"bpp", GST_PROPS_INT(16),
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"depth", GST_PROPS_INT(16),
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"endianness", GST_PROPS_INT(1234),
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"red_mask", GST_PROPS_INT(63488),
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"green_mask", GST_PROPS_INT(2016),
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"blue_mask", GST_PROPS_INT(31),
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#endif
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videotestsrc->width = 640;
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videotestsrc->height = 480;
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videotestsrc->timestamp = 0;
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videotestsrc->interval = GST_SECOND/30;
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}
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static GstBuffer *
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gst_videotestsrc_get (GstPad *pad)
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{
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GstVideotestsrc *videotestsrc;
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gulong newsize;
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GstBuffer *buf;
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GST_DEBUG (0,"gst_videotestsrc_get");
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g_return_val_if_fail (pad != NULL, NULL);
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g_return_val_if_fail (GST_IS_PAD (pad), NULL);
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videotestsrc = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
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#if 0
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/* XXX this is wrong for anything but I420 */
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newsize = videotestsrc->width*videotestsrc->height +
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videotestsrc->width*videotestsrc->height/2;
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#endif
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/* XXX this is wrong for anything but RGB16 */
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newsize = (videotestsrc->width*videotestsrc->height*videotestsrc->bpp)>>3;
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GST_DEBUG(0,"size=%ld %dx%d",newsize,
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videotestsrc->width, videotestsrc->height);
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buf = gst_buffer_new();
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GST_BUFFER_SIZE(buf) = newsize;
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GST_BUFFER_DATA(buf) = g_malloc (newsize);
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g_return_val_if_fail(GST_BUFFER_DATA(buf) != NULL, NULL);
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videotestsrc->timestamp += videotestsrc->interval;
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GST_BUFFER_TIMESTAMP(buf) = videotestsrc->timestamp;
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videotestsrc->make_image(videotestsrc, (void *)GST_BUFFER_DATA(buf),
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videotestsrc->width, videotestsrc->height);
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return buf;
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}
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static void
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gst_videotestsrc_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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{
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GstVideotestsrc *src;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_VIDEOTESTSRC(object));
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src = GST_VIDEOTESTSRC(object);
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GST_DEBUG(0,"gst_videotestsrc_set_property");
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switch (prop_id) {
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case ARG_WIDTH:
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src->width = g_value_get_int (value);
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break;
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case ARG_HEIGHT:
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src->height = g_value_get_int (value);
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break;
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case ARG_METHOD:
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src->method = g_value_get_enum (value);
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break;
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default:
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break;
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}
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}
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static void
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gst_videotestsrc_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
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{
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GstVideotestsrc *src;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_VIDEOTESTSRC(object));
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src = GST_VIDEOTESTSRC(object);
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switch (prop_id) {
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case ARG_WIDTH:
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g_value_set_int (value, src->width);
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break;
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case ARG_HEIGHT:
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g_value_set_int (value, src->height);
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break;
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case ARG_METHOD:
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g_value_set_enum (value, src->method);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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plugin_init (GModule *module, GstPlugin *plugin)
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{
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GstElementFactory *factory;
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/* create an elementfactory for the videotestsrc element */
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factory = gst_element_factory_new("videotestsrc",GST_TYPE_VIDEOTESTSRC,
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&videotestsrc_details);
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g_return_val_if_fail(factory != NULL, FALSE);
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gst_element_factory_add_pad_template (factory, GST_PAD_TEMPLATE_GET (src_templ));
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gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
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return TRUE;
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}
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GstPluginDesc plugin_desc = {
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GST_VERSION_MAJOR,
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GST_VERSION_MINOR,
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"videotestsrc",
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plugin_init
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};
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/* Non-GST specific stuff */
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void
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gst_videotestsrc_setup (GstVideotestsrc *v)
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{
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}
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static void
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random_chars(unsigned char *dest, int nbytes)
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{
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int i;
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static unsigned int state;
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for(i=0;i<nbytes;i++){
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state *= 1103515245;
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state += 12345;
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dest[i] = (state>>16);
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}
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}
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static void
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paint_rect_random (unsigned char *dest, int stride, int x, int y, int w, int h)
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{
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unsigned char *d = dest + stride*y + x;
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int i;
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for(i=0;i<h;i++){
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random_chars(d,w);
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d += stride;
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}
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}
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static void
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paint_rect (unsigned char *dest, int stride, int x, int y, int w, int h, unsigned char color)
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{
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unsigned char *d = dest + stride*y + x;
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int i;
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for(i=0;i<h;i++){
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memset(d,color,w);
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d += stride;
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}
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}
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static void
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paint_rect2 (unsigned char *dest, int stride, int x, int y, int w, int h, unsigned char *col)
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{
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unsigned char *d = dest + stride*y + x*2;
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unsigned char *dp;
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int i,j;
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for(i=0;i<h;i++){
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dp = d;
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for(j=0;j<w;j++){
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*dp++ = col[0];
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*dp++ = col[1];
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}
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d += stride;
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}
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}
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static void
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paint_rect3 (unsigned char *dest, int stride, int x, int y, int w, int h, unsigned char *col)
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{
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unsigned char *d = dest + stride*y + x*3;
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unsigned char *dp;
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int i,j;
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for(i=0;i<h;i++){
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dp = d;
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for(j=0;j<w;j++){
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*dp++ = col[0];
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*dp++ = col[1];
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*dp++ = col[2];
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}
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d += stride;
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}
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}
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/* wht yel cya grn mag red blu blk -I Q */
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static int y_colors[] = { 255, 226, 179, 150, 105, 76, 29, 16, 16, 0 };
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static int u_colors[] = { 128, 0, 170, 46, 212, 85, 255, 128, 0, 128 };
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static int v_colors[] = { 128, 155, 0, 21, 235, 255, 107, 128, 128, 255 };
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void
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gst_videotestsrc_smpte_I420 (GstVideotestsrc *v, unsigned char *dest, int w, int h)
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{
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unsigned char *yp = dest;
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unsigned char *up = dest + w*h;
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unsigned char *vp = dest + w*h + w*h/4;
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//int h24 = h/24;
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//int j,k;
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int i;
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int y1,y2;
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y1 = h/3;
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y2 = h*0.375;
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/* color bars */
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for(i=0;i<7;i++){
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int x1 = i*(w/2)/7;
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int x2 = (i+1)*(w/2)/7;
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paint_rect(yp, w, x1*2, 0, (x2-x1)*2, y1*2, y_colors[i]);
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paint_rect(up, w/2, x1, 0, x2-x1, y1, u_colors[i]);
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paint_rect(vp, w/2, x1, 0, x2-x1, y1, v_colors[i]);
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}
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/* inverse blue bars */
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for(i=0;i<7;i++){
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int x1 = i*(w/2)/7;
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int x2 = (i+1)*(w/2)/7;
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int k;
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if(i&1){
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k = 7;
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}else{
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k = 6-i;
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}
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paint_rect(yp, w, x1*2, y1*2, (x2-x1)*2, (y2-y1)*2, y_colors[k]);
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paint_rect(up, w/2, x1, y1, x2-x1, y2-y1, u_colors[k]);
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paint_rect(vp, w/2, x1, y1, x2-x1, y2-y1, v_colors[k]);
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}
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/* -I, white, Q regions */
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for(i=0;i<3;i++){
|
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int x1 = i*(w/2)/6;
|
|
int x2 = (i+1)*(w/2)/6;
|
|
int k;
|
|
|
|
if(i==0){ k = 8; }
|
|
else if(i==1){ k = 0; }
|
|
else k = 9;
|
|
|
|
paint_rect(yp, w, x1*2, y2*2, (x2-x1)*2, h-y2*2, y_colors[k]);
|
|
paint_rect(up, w/2, x1, y2, x2-x1, h/2-y2, u_colors[k]);
|
|
paint_rect(vp, w/2, x1, y2, x2-x1, h/2-y2, v_colors[k]);
|
|
}
|
|
|
|
{
|
|
int x1 = 3*(w/2)/6;
|
|
int x2 = w/2;
|
|
paint_rect_random(yp, w, x1*2, y2*2, (x2-x1)*2, h-y2*2);
|
|
paint_rect(up, w/2, x1, y2, x2-x1, h/2-y2, u_colors[0]);
|
|
paint_rect(vp, w/2, x1, y2, x2-x1, h/2-y2, v_colors[0]);
|
|
}
|
|
}
|
|
|
|
/* same as I420, but with U and V swapped */
|
|
void
|
|
gst_videotestsrc_smpte_YV12 (GstVideotestsrc *v, unsigned char *dest, int w, int h)
|
|
{
|
|
unsigned char *yp = dest;
|
|
unsigned char *up = dest + w*h + w*h/4;
|
|
unsigned char *vp = dest + w*h;
|
|
//int h24 = h/24;
|
|
//int j,k;
|
|
int i;
|
|
int y1,y2;
|
|
|
|
y1 = h/3;
|
|
y2 = h*0.375;
|
|
|
|
/* color bars */
|
|
for(i=0;i<7;i++){
|
|
int x1 = i*(w/2)/7;
|
|
int x2 = (i+1)*(w/2)/7;
|
|
paint_rect(yp, w, x1*2, 0, (x2-x1)*2, y1*2, y_colors[i]);
|
|
paint_rect(up, w/2, x1, 0, x2-x1, y1, u_colors[i]);
|
|
paint_rect(vp, w/2, x1, 0, x2-x1, y1, v_colors[i]);
|
|
}
|
|
|
|
/* inverse blue bars */
|
|
for(i=0;i<7;i++){
|
|
int x1 = i*(w/2)/7;
|
|
int x2 = (i+1)*(w/2)/7;
|
|
int k;
|
|
if(i&1){
|
|
k = 7;
|
|
}else{
|
|
k = 6-i;
|
|
}
|
|
paint_rect(yp, w, x1*2, y1*2, (x2-x1)*2, (y2-y1)*2, y_colors[k]);
|
|
paint_rect(up, w/2, x1, y1, x2-x1, y2-y1, u_colors[k]);
|
|
paint_rect(vp, w/2, x1, y1, x2-x1, y2-y1, v_colors[k]);
|
|
}
|
|
|
|
/* -I, white, Q regions */
|
|
for(i=0;i<3;i++){
|
|
int x1 = i*(w/2)/6;
|
|
int x2 = (i+1)*(w/2)/6;
|
|
int k;
|
|
|
|
if(i==0){ k = 8; }
|
|
else if(i==1){ k = 0; }
|
|
else k = 9;
|
|
|
|
paint_rect(yp, w, x1*2, y2*2, (x2-x1)*2, h-y2*2, y_colors[k]);
|
|
paint_rect(up, w/2, x1, y2, x2-x1, h/2-y2, u_colors[k]);
|
|
paint_rect(vp, w/2, x1, y2, x2-x1, h/2-y2, v_colors[k]);
|
|
}
|
|
|
|
{
|
|
int x1 = 3*(w/2)/6;
|
|
int x2 = w/2;
|
|
paint_rect_random(yp, w, x1*2, y2*2, (x2-x1)*2, h-y2*2);
|
|
paint_rect(up, w/2, x1, y2, x2-x1, h/2-y2, u_colors[0]);
|
|
paint_rect(vp, w/2, x1, y2, x2-x1, h/2-y2, v_colors[0]);
|
|
}
|
|
}
|
|
|
|
/* wht yel cya grn mag red blu blk -I Q */
|
|
static int r_colors[] = { 255, 255, 0, 0, 255, 255, 0, 0, 0, 0 };
|
|
static int g_colors[] = { 255, 255, 255, 255, 0, 0, 0, 0, 0, 128 };
|
|
static int b_colors[] = { 255, 0, 255, 0, 255, 0, 255, 0, 128, 255 };
|
|
|
|
void
|
|
gst_videotestsrc_smpte_RGB (GstVideotestsrc *v, unsigned char *dest, int w, int h)
|
|
{
|
|
int i;
|
|
int y1,y2;
|
|
|
|
y1 = h*2/3;
|
|
y2 = h*0.75;
|
|
|
|
/* color bars */
|
|
for(i=0;i<7;i++){
|
|
int x1 = i*w/7;
|
|
int x2 = (i+1)*w/7;
|
|
unsigned char col[2];
|
|
|
|
col[0] = (g_colors[i]&0xe0) | (b_colors[i]>>3);
|
|
col[1] = (r_colors[i]&0xf8) | (g_colors[i]>>5);
|
|
paint_rect2(dest, w*2, x1, 0, x2-x1, y1, col);
|
|
}
|
|
|
|
/* inverse blue bars */
|
|
for(i=0;i<7;i++){
|
|
int x1 = i*w/7;
|
|
int x2 = (i+1)*w/7;
|
|
unsigned char col[2];
|
|
int k;
|
|
|
|
if(i&1){
|
|
k = 7;
|
|
}else{
|
|
k = 6-i;
|
|
}
|
|
col[0] = (g_colors[k]&0xe0) | (b_colors[k]>>3);
|
|
col[1] = (r_colors[k]&0xf8) | (g_colors[k]>>5);
|
|
paint_rect2(dest, w*2, x1, y1, x2-x1, y2-y1, col);
|
|
}
|
|
|
|
/* -I, white, Q regions */
|
|
for(i=0;i<3;i++){
|
|
int x1 = i*w/6;
|
|
int x2 = (i+1)*w/6;
|
|
unsigned char col[2];
|
|
int k;
|
|
|
|
if(i==0){ k = 8; }
|
|
else if(i==1){ k = 0; }
|
|
else k = 9;
|
|
|
|
col[0] = (g_colors[k]&0xe0) | (b_colors[k]>>3);
|
|
col[1] = (r_colors[k]&0xf8) | (g_colors[k]>>5);
|
|
paint_rect2(dest, w*2, x1, y2, x2-x1, h-y2, col);
|
|
}
|
|
|
|
{
|
|
int x1 = w/2;
|
|
int x2 = w-1;
|
|
paint_rect_random(dest, w*2, x1*2, y2, (x2-x1)*2, h-y2);
|
|
}
|
|
}
|
|
|