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gstreamer/gst/videotestsrc/gstvideotestsrc.c
David I. Lehn 0f52282149 fix videotestsrc ! fakesink: use macro to null terminate props reformat a few lines 
Original commit message from CVS:
fix videotestsrc ! fakesink: use macro to null terminate props
reformat a few lines
2002-10-30 09:16:03 +00:00

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/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*#define DEBUG_ENABLED */
#include <gstvideotestsrc.h>
#include <string.h>
#include <stdlib.h>
typedef struct paintinfo_struct paintinfo;
struct paintinfo_struct
{
unsigned char *dest;
unsigned char *yp, *up, *vp;
int width;
int height;
int Y, U, V;
void (*paint_hline) (paintinfo * p, int x, int y, int w);
};
struct fourcc_list_struct
{
char *fourcc;
int bitspp;
void (*paint_setup) (paintinfo * p, char *dest);
void (*paint_hline) (paintinfo * p, int x, int y, int w);
};
static struct fourcc_list_struct fourcc_list[];
static int n_fourccs;
static int paintrect_find_fourcc (int find_fourcc);
/* elementfactory information */
static GstElementDetails videotestsrc_details = {
"Video test source",
"Source/Video",
"LGPL",
"Creates a test video stream",
VERSION,
"David A. Schleef <ds@schleef.org>",
"(C) 2002",
};
/* GstVideotestsrc signals and args */
enum
{
/* FILL ME */
LAST_SIGNAL
};
enum
{
ARG_0,
ARG_WIDTH,
ARG_HEIGHT,
ARG_FOURCC,
ARG_RATE,
/* FILL ME */
};
GST_PAD_TEMPLATE_FACTORY (videotestsrc_src_template_factory,
"src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_CAPS_NEW ("videotestsrc_src",
"video/raw",
"width", GST_PROPS_INT_RANGE (0, G_MAXINT),
"height", GST_PROPS_INT_RANGE (0, G_MAXINT)
)
);
static void gst_videotestsrc_class_init (GstVideotestsrcClass * klass);
static void gst_videotestsrc_init (GstVideotestsrc * videotestsrc);
static GstElementStateReturn gst_videotestsrc_change_state (GstElement * element);
static void gst_videotestsrc_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_videotestsrc_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec);
static GstBuffer *gst_videotestsrc_get (GstPad * pad);
static GstElementClass *parent_class = NULL;
static void gst_videotestsrc_setup (GstVideotestsrc * v);
static void random_chars (unsigned char *dest, int nbytes);
static void gst_videotestsrc_smpte_yuv (GstVideotestsrc * v, unsigned char *dest, int w, int h);
static void gst_videotestsrc_smpte_RGB (GstVideotestsrc * v, unsigned char *dest, int w, int h);
#if 0
static void gst_videotestsrc_colors_yuv (GstVideotestsrc * v, unsigned char *dest, int w, int h);
#endif
static GType
gst_videotestsrc_get_type (void)
{
static GType videotestsrc_type = 0;
if (!videotestsrc_type) {
static const GTypeInfo videotestsrc_info = {
sizeof (GstVideotestsrcClass), NULL,
NULL,
(GClassInitFunc) gst_videotestsrc_class_init,
NULL,
NULL,
sizeof (GstVideotestsrc),
0,
(GInstanceInitFunc) gst_videotestsrc_init,
};
videotestsrc_type =
g_type_register_static (GST_TYPE_ELEMENT, "GstVideotestsrc", &videotestsrc_info, 0);
}
return videotestsrc_type;
}
static void
gst_videotestsrc_class_init (GstVideotestsrcClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_WIDTH,
g_param_spec_int ("width", "width", "width",
G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_HEIGHT,
g_param_spec_int ("height", "height", "height",
G_MININT, G_MAXINT, 0, G_PARAM_READWRITE)); /* CHECKME */
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_FOURCC,
g_param_spec_string ("fourcc", "fourcc", "fourcc",
NULL, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_RATE,
g_param_spec_int ("rate", "Rate", "Frame rate",
0, 100, 30, G_PARAM_READWRITE));
parent_class = g_type_class_ref (GST_TYPE_ELEMENT);
gobject_class->set_property = gst_videotestsrc_set_property;
gobject_class->get_property = gst_videotestsrc_get_property;
gstelement_class->change_state = gst_videotestsrc_change_state;
}
static GstPadConnectReturn
gst_videotestsrc_srcconnect (GstPad * pad, GstCaps * caps)
{
GstVideotestsrc *videotestsrc;
GST_DEBUG (0, "gst_videotestsrc_srcconnect");
videotestsrc = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
#if 0
if (!GST_CAPS_IS_FIXED (caps)) {
return GST_PAD_CONNECT_DELAYED;
}
#endif
gst_caps_get_fourcc_int (caps, "format", &videotestsrc->format);
gst_caps_get_int (caps, "width", &videotestsrc->width);
gst_caps_get_int (caps, "height", &videotestsrc->height);
GST_DEBUG (0, "format is 0x%08x\n", videotestsrc->format);
printf ("videotestsrc: caps FOURCC 0x%08x, forced FOURCC 0x%08x\n",
videotestsrc->format, videotestsrc->forced_format);
if (videotestsrc->forced_format && videotestsrc->format != videotestsrc->forced_format) {
return GST_PAD_CONNECT_REFUSED;
}
printf ("videotestsrc: using FOURCC 0x%08x\n", videotestsrc->format);
if (videotestsrc->format == GST_MAKE_FOURCC ('R', 'G', 'B', ' ')) {
videotestsrc->make_image = gst_videotestsrc_smpte_RGB;
videotestsrc->bpp = 16;
} else {
int index;
index = paintrect_find_fourcc (videotestsrc->format);
videotestsrc->make_image = gst_videotestsrc_smpte_yuv;
/* videotestsrc->make_image = gst_videotestsrc_colors_yuv; */
videotestsrc->bpp = fourcc_list[index].bitspp;
}
GST_DEBUG (0, "size %d x %d", videotestsrc->width, videotestsrc->height);
return GST_PAD_CONNECT_OK;
}
static GstElementStateReturn
gst_videotestsrc_change_state (GstElement * element)
{
GstVideotestsrc *v;
v = GST_VIDEOTESTSRC (element);
switch (GST_STATE_TRANSITION (element)) {
case GST_STATE_PAUSED_TO_PLAYING:
v->pool = gst_pad_get_bufferpool (v->srcpad);
break;
case GST_STATE_PLAYING_TO_PAUSED:
v->pool = NULL;
break;
}
parent_class->change_state (element);
return GST_STATE_SUCCESS;
}
static GstCaps *
gst_videotestsrc_get_capslist (void)
{
static GstCaps *capslist = NULL;
GstCaps *caps;
int i;
if (capslist)
return capslist;
for (i = 0; i < n_fourccs; i++) {
char *s = fourcc_list[i].fourcc;
int fourcc = GST_MAKE_FOURCC (s[0], s[1], s[2], s[3]);
caps = GST_CAPS_NEW ("videotestsrc_filter",
"video/raw",
"format", GST_PROPS_FOURCC (fourcc),
"width", GST_PROPS_INT (640),
"height", GST_PROPS_INT (480));
capslist = gst_caps_append (capslist, caps);
}
return capslist;
}
static GstCaps *
gst_videotestsrc_getcaps (GstPad * pad, GstCaps * caps)
{
GstVideotestsrc *vts;
vts = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
if (vts->forced_format != 0) {
return GST_CAPS_NEW ("videotestsrc_filter",
"video/raw",
"format", GST_PROPS_FOURCC (vts->forced_format),
"width", GST_PROPS_INT (640),
"height", GST_PROPS_INT (480));
} else {
return gst_videotestsrc_get_capslist ();
}
}
static void
gst_videotestsrc_init (GstVideotestsrc * videotestsrc)
{
GST_DEBUG (0, "gst_videotestsrc_init");
videotestsrc->srcpad =
gst_pad_new_from_template (GST_PAD_TEMPLATE_GET (videotestsrc_src_template_factory), "src");
/*gst_pad_set_negotiate_function(videotestsrc->srcpad,videotestsrc_negotiate_src); */
gst_pad_set_getcaps_function (videotestsrc->srcpad, gst_videotestsrc_getcaps);
gst_element_add_pad (GST_ELEMENT (videotestsrc), videotestsrc->srcpad);
gst_pad_set_get_function (videotestsrc->srcpad, gst_videotestsrc_get);
gst_pad_set_connect_function (videotestsrc->srcpad, gst_videotestsrc_srcconnect);
videotestsrc->width = 640;
videotestsrc->height = 480;
videotestsrc->rate = 30;
videotestsrc->timestamp = 0;
videotestsrc->interval = GST_SECOND / videotestsrc->rate;
videotestsrc->pool = NULL;
}
static GstBuffer *
gst_videotestsrc_get (GstPad * pad)
{
GstVideotestsrc *videotestsrc;
gulong newsize;
GstBuffer *buf;
GST_DEBUG (0, "gst_videotestsrc_get");
g_return_val_if_fail (pad != NULL, NULL);
g_return_val_if_fail (GST_IS_PAD (pad), NULL);
videotestsrc = GST_VIDEOTESTSRC (gst_pad_get_parent (pad));
newsize = (videotestsrc->width * videotestsrc->height * videotestsrc->bpp) >> 3;
GST_DEBUG (0, "size=%ld %dx%d", newsize, videotestsrc->width, videotestsrc->height);
buf = NULL;
if (videotestsrc->pool) {
buf = gst_buffer_new_from_pool (videotestsrc->pool, 0, 0);
}
if (!buf) {
buf = gst_buffer_new ();
GST_BUFFER_SIZE (buf) = newsize;
GST_BUFFER_DATA (buf) = g_malloc (newsize);
}
g_return_val_if_fail (GST_BUFFER_DATA (buf) != NULL, NULL);
videotestsrc->timestamp += videotestsrc->interval;
GST_BUFFER_TIMESTAMP (buf) = videotestsrc->timestamp;
videotestsrc->make_image (videotestsrc, (void *) GST_BUFFER_DATA (buf),
videotestsrc->width, videotestsrc->height);
return buf;
}
static void
gst_videotestsrc_set_property (GObject * object, guint prop_id, const GValue * value,
GParamSpec * pspec)
{
GstVideotestsrc *src;
const gchar *s;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_VIDEOTESTSRC (object));
src = GST_VIDEOTESTSRC (object);
GST_DEBUG (0, "gst_videotestsrc_set_property");
switch (prop_id) {
case ARG_WIDTH:
src->width = g_value_get_int (value);
break;
case ARG_HEIGHT:
src->height = g_value_get_int (value);
break;
case ARG_FOURCC:
s = g_value_get_string (value);
if (strlen (s) == 4) {
src->forced_format = GST_MAKE_FOURCC (s[0], s[1], s[2], s[3]);
printf ("forcing FOURCC to 0x%08x\n", src->forced_format);
}
break;
case ARG_RATE:
src->rate = g_value_get_int (value);
src->interval = GST_SECOND/src->rate;
break;
default:
break;
}
}
static void
gst_videotestsrc_get_property (GObject * object, guint prop_id, GValue * value, GParamSpec * pspec)
{
GstVideotestsrc *src;
/* it's not null if we got it, but it might not be ours */
g_return_if_fail (GST_IS_VIDEOTESTSRC (object));
src = GST_VIDEOTESTSRC (object);
switch (prop_id) {
case ARG_WIDTH:
g_value_set_int (value, src->width);
break;
case ARG_HEIGHT:
g_value_set_int (value, src->height);
break;
case ARG_FOURCC:
/* FIXME */
/* g_value_set_int (value, src->forced_format); */
break;
case ARG_RATE:
g_value_set_int (value, src->rate);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
plugin_init (GModule * module, GstPlugin * plugin)
{
GstElementFactory *factory;
/* create an elementfactory for the videotestsrc element */
factory = gst_element_factory_new ("videotestsrc", GST_TYPE_VIDEOTESTSRC, &videotestsrc_details);
g_return_val_if_fail (factory != NULL, FALSE);
gst_element_factory_add_pad_template (factory,
GST_PAD_TEMPLATE_GET (videotestsrc_src_template_factory));
gst_plugin_add_feature (plugin, GST_PLUGIN_FEATURE (factory));
return TRUE;
}
GstPluginDesc plugin_desc = {
GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"videotestsrc",
plugin_init
};
/* Non-GST specific stuff */
static void
gst_videotestsrc_setup (GstVideotestsrc * v)
{
}
static unsigned char
random_char (void)
{
static unsigned int state;
state *= 1103515245;
state += 12345;
return (state >> 16);
}
static void
random_chars (unsigned char *dest, int nbytes)
{
int i;
static unsigned int state;
for (i = 0; i < nbytes; i++) {
state *= 1103515245;
state += 12345;
dest[i] = (state >> 16);
}
}
static void
memset_str2 (unsigned char *dest, unsigned char val, int n)
{
int i;
for (i = 0; i < n; i++) {
*dest = val;
dest += 2;
}
}
static void
memset_str3 (unsigned char *dest, unsigned char val, int n)
{
int i;
for (i = 0; i < n; i++) {
*dest = val;
dest += 3;
}
}
static void
memset_str4 (unsigned char *dest, unsigned char val, int n)
{
int i;
for (i = 0; i < n; i++) {
*dest = val;
dest += 4;
}
}
static void
paint_rect_random (unsigned char *dest, int stride, int x, int y, int w, int h)
{
unsigned char *d = dest + stride * y + x;
int i;
for (i = 0; i < h; i++) {
random_chars (d, w);
d += stride;
}
}
#if 0
static void
paint_rect (unsigned char *dest, int stride, int x, int y, int w, int h, unsigned char color)
{
unsigned char *d = dest + stride * y + x;
int i;
for (i = 0; i < h; i++) {
memset (d, color, w);
d += stride;
}
}
#endif
static void
paint_rect_s2 (unsigned char *dest, int stride, int x, int y, int w, int h, unsigned char col)
{
unsigned char *d = dest + stride * y + x * 2;
unsigned char *dp;
int i, j;
for (i = 0; i < h; i++) {
dp = d;
for (j = 0; j < w; j++) {
*dp = col;
dp += 2;
}
d += stride;
}
}
static void
paint_rect2 (unsigned char *dest, int stride, int x, int y, int w, int h, unsigned char *col)
{
unsigned char *d = dest + stride * y + x * 2;
unsigned char *dp;
int i, j;
for (i = 0; i < h; i++) {
dp = d;
for (j = 0; j < w; j++) {
*dp++ = col[0];
*dp++ = col[1];
}
d += stride;
}
}
static void
paint_rect3 (unsigned char *dest, int stride, int x, int y, int w, int h, unsigned char *col)
{
unsigned char *d = dest + stride * y + x * 3;
unsigned char *dp;
int i, j;
for (i = 0; i < h; i++) {
dp = d;
for (j = 0; j < w; j++) {
*dp++ = col[0];
*dp++ = col[1];
*dp++ = col[2];
}
d += stride;
}
}
static void
paint_rect_s4 (unsigned char *dest, int stride, int x, int y, int w, int h, unsigned char col)
{
unsigned char *d = dest + stride * y + x * 4;
unsigned char *dp;
int i, j;
for (i = 0; i < h; i++) {
dp = d;
for (j = 0; j < w; j++) {
*dp = col;
dp += 4;
}
d += stride;
}
}
enum {
COLOR_WHITE = 0,
COLOR_YELLOW,
COLOR_CYAN,
COLOR_GREEN,
COLOR_MAGENTA,
COLOR_RED,
COLOR_BLUE,
COLOR_BLACK,
COLOR_NEG_I,
COLOR_POS_Q,
COLOR_SUPER_BLACK,
COLOR_DARK_GREY,
};
/* wht yel cya grn mag red blu blk -I Q, superblack, dark grey */
static int y_colors[] = { 255, 226, 179, 150, 105, 76, 29, 16, 16, 16, 0, 32 };
static int u_colors[] = { 128, 0, 170, 46, 212, 85, 255, 128, 198, 235, 128, 128 };
static int v_colors[] = { 128, 155, 0, 21, 235, 255, 107, 128, 21, 198, 128, 128 };
static void paint_setup_I420 (paintinfo * p, char *dest);
static void paint_setup_YV12 (paintinfo * p, char *dest);
static void paint_setup_YUY2 (paintinfo * p, char *dest);
static void paint_setup_UYVY (paintinfo * p, char *dest);
static void paint_setup_YVYU (paintinfo * p, char *dest);
static void paint_setup_Y800 (paintinfo * p, char *dest);
static void paint_setup_IMC1 (paintinfo * p, char *dest);
static void paint_setup_IMC2 (paintinfo * p, char *dest);
static void paint_setup_IMC3 (paintinfo * p, char *dest);
static void paint_setup_IMC4 (paintinfo * p, char *dest);
static void paint_hline_I420 (paintinfo * p, int x, int y, int w);
static void paint_hline_YUY2 (paintinfo * p, int x, int y, int w);
static void paint_hline_Y800 (paintinfo * p, int x, int y, int w);
static void paint_hline_IMC1 (paintinfo * p, int x, int y, int w);
static struct fourcc_list_struct fourcc_list[] = {
/* packed */
{"YUY2", 16, paint_setup_YUY2, paint_hline_YUY2},
{"UYVY", 16, paint_setup_UYVY, paint_hline_YUY2},
{"Y422", 16, paint_setup_UYVY, paint_hline_YUY2},
{"UYNV", 16, paint_setup_UYVY, paint_hline_YUY2},
{"YVYU", 16, paint_setup_YVYU, paint_hline_YUY2},
/* interlaced */
/*{ "IUYV", 16, paint_setup_YVYU, paint_hline_YUY2 }, */
/* inverted */
/*{ "cyuv", 16, paint_setup_YVYU, paint_hline_YUY2 }, */
/*{ "Y41P", 12, paint_setup_YVYU, paint_hline_YUY2 }, */
/* interlaced */
/*{ "IY41", 12, paint_setup_YVYU, paint_hline_YUY2 }, */
/*{ "Y211", 8, paint_setup_YVYU, paint_hline_YUY2 }, */
/*{ "Y41T", 12, paint_setup_YVYU, paint_hline_YUY2 }, */
/*{ "Y42P", 16, paint_setup_YVYU, paint_hline_YUY2 }, */
/*{ "CLJR", 8, paint_setup_YVYU, paint_hline_YUY2 }, */
/*{ "IYU1", 12, paint_setup_YVYU, paint_hline_YUY2 }, */
/*{ "IYU2", 24, paint_setup_YVYU, paint_hline_YUY2 }, */
/* planar */
/* YVU9 */
/* YUV9 */
/* IF09 */
/* YV12 */
{"YV12", 12, paint_setup_YV12, paint_hline_I420},
/* I420 */
{"I420", 12, paint_setup_I420, paint_hline_I420},
/* IYUV (same as I420) */
{"IYUV", 12, paint_setup_I420, paint_hline_I420},
/* NV12 */
/* NV21 */
/* IMC1 */
{"IMC1", 16, paint_setup_IMC1, paint_hline_IMC1},
/* IMC2 */
{"IMC2", 12, paint_setup_IMC2, paint_hline_IMC1},
/* IMC3 */
{"IMC3", 16, paint_setup_IMC3, paint_hline_IMC1},
/* IMC4 */
{"IMC4", 12, paint_setup_IMC4, paint_hline_IMC1},
/* CLPL */
/* Y41B */
/* Y42B */
/* Y800 grayscale */
{"Y800", 8, paint_setup_Y800, paint_hline_Y800},
/* Y8 same as Y800 */
{"Y8 ", 8, paint_setup_Y800, paint_hline_Y800},
/*{ "IYU2", 24, paint_setup_YVYU, paint_hline_YUY2 }, */
};
static int n_fourccs = sizeof (fourcc_list) / sizeof (fourcc_list[0]);
static int
paintrect_find_fourcc (int find_fourcc)
{
int i;
for (i = 0; i < n_fourccs; i++) {
char *s;
int fourcc;
s = fourcc_list[i].fourcc;
fourcc = GST_MAKE_FOURCC (s[0], s[1], s[2], s[3]);
if (find_fourcc == fourcc) {
return i;
}
}
return -1;
}
static void
gst_videotestsrc_smpte_yuv (GstVideotestsrc * v, unsigned char *dest, int w, int h)
{
int index;
int i;
int y1, y2;
int j;
paintinfo pi;
paintinfo *p = &pi;
p->width = w;
p->height = h;
index = paintrect_find_fourcc (v->format);
if (index < 0)
return;
fourcc_list[index].paint_setup (p, dest);
p->paint_hline = fourcc_list[index].paint_hline;
y1 = 2 * h / 3;
y2 = h * 0.75;
/* color bars */
for (i = 0; i < 7; i++) {
int x1 = i * w / 7;
int x2 = (i + 1) * w / 7;
p->Y = y_colors[i];
p->U = u_colors[i];
p->V = v_colors[i];
for (j = 0; j < y1; j++) {
p->paint_hline (p, x1, j, (x2 - x1));
}
}
/* inverse blue bars */
for (i = 0; i < 7; i++) {
int x1 = i * w / 7;
int x2 = (i + 1) * w / 7;
int k;
if (i & 1) {
k = 7;
} else {
k = 6 - i;
}
p->Y = y_colors[k];
p->U = u_colors[k];
p->V = v_colors[k];
for (j = y1; j < y2; j++) {
p->paint_hline (p, x1, j, (x2 - x1));
}
}
/* -I, white, Q regions */
for (i = 0; i < 3; i++) {
int x1 = i * w / 6;
int x2 = (i + 1) * w / 6;
int k;
if (i == 0) {
k = 8;
} else if (i == 1) {
k = 0;
} else
k = 9;
p->Y = y_colors[k];
p->U = u_colors[k];
p->V = v_colors[k];
for (j = y2; j < h; j++) {
p->paint_hline (p, x1, j, (x2 - x1));
}
}
/* superblack, black, dark grey */
for (i = 0; i < 3; i++) {
int x1 = w/2 + i * w / 12;
int x2 = w/2 + (i + 1) * w / 12;
int k;
if (i == 0) {
k = COLOR_SUPER_BLACK;
} else if (i == 1) {
k = COLOR_BLACK;
} else
k = COLOR_DARK_GREY;
p->Y = y_colors[k];
p->U = u_colors[k];
p->V = v_colors[k];
for (j = y2; j < h; j++) {
p->paint_hline (p, x1, j, (x2 - x1));
}
}
{
int x1 = w*3 / 4;
p->U = u_colors[0];
p->V = v_colors[0];
for (i = x1; i < w; i++) {
for (j = y2; j < h; j++) {
p->Y = random_char ();
p->paint_hline (p, i, j, 1);
}
}
}
}
static void
paint_setup_I420 (paintinfo * p, char *dest)
{
p->yp = dest;
p->up = dest + p->width * p->height;
p->vp = dest + p->width * p->height + p->width * p->height / 4;
}
static void
paint_hline_I420 (paintinfo * p, int x, int y, int w)
{
int x1 = x / 2;
int x2 = (x + w) / 2;
int offset = y * p->width;
int offset1 = (y / 2) * (p->width / 2);
memset (p->yp + offset + x, p->Y, w);
memset (p->up + offset1 + x1, p->U, x2 - x1);
memset (p->vp + offset1 + x1, p->V, x2 - x1);
}
static void
paint_setup_YV12 (paintinfo * p, char *dest)
{
p->yp = dest;
p->up = dest + p->width * p->height + p->width * p->height / 4;
p->vp = dest + p->width * p->height;
}
static void
paint_setup_YUY2 (paintinfo * p, char *dest)
{
p->yp = dest;
p->up = dest + 1;
p->vp = dest + 3;
}
static void
paint_setup_UYVY (paintinfo * p, char *dest)
{
p->yp = dest + 1;
p->up = dest;
p->vp = dest + 2;
}
static void
paint_setup_YVYU (paintinfo * p, char *dest)
{
p->yp = dest;
p->up = dest + 3;
p->vp = dest + 1;
}
static void
paint_hline_YUY2 (paintinfo * p, int x, int y, int w)
{
int x1 = x / 2;
int x2 = (x + w) / 2;
int offset;
offset = y * p->width * 2;
memset_str2 (p->yp + offset + x * 2, p->Y, w);
memset_str4 (p->up + offset + x1 * 4, p->U, x2 - x1);
memset_str4 (p->vp + offset + x1 * 4, p->V, x2 - x1);
}
static void
paint_setup_Y800 (paintinfo * p, char *dest)
{
p->yp = dest;
}
static void
paint_hline_Y800 (paintinfo * p, int x, int y, int w)
{
int offset = y * p->width;
memset (p->yp + offset + x, p->Y, w);
}
static void
paint_setup_IMC1 (paintinfo * p, char *dest)
{
p->yp = dest;
p->up = dest + p->width * p->height;
p->vp = dest + p->width * p->height + p->width * p->height / 2;
}
static void
paint_setup_IMC2 (paintinfo * p, char *dest)
{
p->yp = dest;
p->vp = dest + p->width * p->height;
p->up = dest + p->width * p->height + p->width / 2;
}
static void
paint_setup_IMC3 (paintinfo * p, char *dest)
{
p->yp = dest;
p->up = dest + p->width * p->height + p->width * p->height / 2;
p->vp = dest + p->width * p->height;
}
static void
paint_setup_IMC4 (paintinfo * p, char *dest)
{
p->yp = dest;
p->vp = dest + p->width * p->height + p->width / 2;
p->up = dest + p->width * p->height;
}
static void
paint_hline_IMC1 (paintinfo * p, int x, int y, int w)
{
int x1 = x / 2;
int x2 = (x + w) / 2;
int offset = y * p->width;
int offset1 = (y / 2) * p->width;
memset (p->yp + offset + x, p->Y, w);
memset (p->up + offset1 + x1, p->U, x2 - x1);
memset (p->vp + offset1 + x1, p->V, x2 - x1);
}
/* 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 };
static 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);
}
}
#ifdef unused
static void
gst_videotestsrc_colors_yuv (GstVideotestsrc * v, unsigned char *dest, int w, int h)
{
int index;
int i;
int j;
int k;
paintinfo pi;
paintinfo *p = &pi;
static int static_y = 0;
p->width = w;
p->height = h;
index = paintrect_find_fourcc (v->format);
if (index < 0)
return;
fourcc_list[index].paint_setup (p, dest);
p->paint_hline = fourcc_list[index].paint_hline;
/* color bars */
for (i = 0; i < 16; i++) {
int x1 = (i * w) >> 4;
int x2 = ((i + 1) * w) >> 4;
p->Y = static_y;
p->U = i * 17;
for (j = 0; j < 16; j++) {
int y1 = (j * h) >> 4;
int y2 = ((j + 1) * h) >> 4;
p->V = j * 17;
for (k = y1; k < y2; k++) {
p->paint_hline (p, x1, k, (x2 - x1));
}
}
}
static_y += 17;
if (static_y >= 256)
static_y = 0;
}
#endif
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