gstreamer/ext/cog/gstcolorconvert.c
Debarshi Ray 335293bf50 Remove unused but set variables
This is needed to satisfy the new -Wunused-but-set-variable added in
GCC 4.6: http://gcc.gnu.org/gcc-4.6/changes.html
2011-06-04 20:26:02 +01:00

383 lines
11 KiB
C

/* GStreamer
* Copyright (C) 2008 David Schleef <ds@entropywave.com>
*
* 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <gst/base/gstbasetransform.h>
#include <gst/video/video.h>
#include <string.h>
#include <cog/cog.h>
#include <cog/cogvirtframe.h>
#include <gst/math-compat.h>
#include "gstcogutils.h"
#include "gstcms.h"
#define GST_TYPE_COLORCONVERT \
(gst_colorconvert_get_type())
#define GST_COLORCONVERT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COLORCONVERT,GstColorconvert))
#define GST_COLORCONVERT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_COLORCONVERT,GstColorconvertClass))
#define GST_IS_COLORCONVERT(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COLORCONVERT))
#define GST_IS_COLORCONVERT_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COLORCONVERT))
typedef struct _GstColorconvert GstColorconvert;
typedef struct _GstColorconvertClass GstColorconvertClass;
struct _GstColorconvert
{
GstBaseTransform base_transform;
gchar *location;
GstVideoFormat format;
int width;
int height;
};
struct _GstColorconvertClass
{
GstBaseTransformClass parent_class;
};
enum
{
ARG_0,
};
GType gst_colorconvert_get_type (void);
static void gst_colorconvert_base_init (gpointer g_class);
static void gst_colorconvert_class_init (gpointer g_class, gpointer class_data);
static void gst_colorconvert_init (GTypeInstance * instance, gpointer g_class);
static void gst_colorconvert_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_colorconvert_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static gboolean gst_colorconvert_set_caps (GstBaseTransform * base_transform,
GstCaps * incaps, GstCaps * outcaps);
static GstFlowReturn gst_colorconvert_transform_ip (GstBaseTransform *
base_transform, GstBuffer * buf);
static CogFrame *cog_virt_frame_new_color_transform (CogFrame * frame);
static GstStaticPadTemplate gst_colorconvert_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{I420,YUY2,UYVY,AYUV}"))
);
static GstStaticPadTemplate gst_colorconvert_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{I420,YUY2,UYVY,AYUV}"))
);
GType
gst_colorconvert_get_type (void)
{
static GType compress_type = 0;
if (!compress_type) {
static const GTypeInfo compress_info = {
sizeof (GstColorconvertClass),
gst_colorconvert_base_init,
NULL,
gst_colorconvert_class_init,
NULL,
NULL,
sizeof (GstColorconvert),
0,
gst_colorconvert_init,
};
compress_type = g_type_register_static (GST_TYPE_BASE_TRANSFORM,
"GstColorconvert", &compress_info, 0);
}
return compress_type;
}
static void
gst_colorconvert_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_colorconvert_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_colorconvert_sink_template));
gst_element_class_set_details_simple (element_class, "Convert colorspace",
"Filter/Effect/Video",
"Convert between SDTV and HDTV colorspace",
"David Schleef <ds@schleef.org>");
}
static void
gst_colorconvert_class_init (gpointer g_class, gpointer class_data)
{
GObjectClass *gobject_class;
GstBaseTransformClass *base_transform_class;
gobject_class = G_OBJECT_CLASS (g_class);
base_transform_class = GST_BASE_TRANSFORM_CLASS (g_class);
gobject_class->set_property = gst_colorconvert_set_property;
gobject_class->get_property = gst_colorconvert_get_property;
base_transform_class->set_caps = gst_colorconvert_set_caps;
base_transform_class->transform_ip = gst_colorconvert_transform_ip;
}
static void
gst_colorconvert_init (GTypeInstance * instance, gpointer g_class)
{
GST_DEBUG ("gst_colorconvert_init");
}
static void
gst_colorconvert_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
g_return_if_fail (GST_IS_COLORCONVERT (object));
GST_DEBUG ("gst_colorconvert_set_property");
switch (prop_id) {
default:
break;
}
}
static void
gst_colorconvert_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
g_return_if_fail (GST_IS_COLORCONVERT (object));
switch (prop_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
gst_colorconvert_set_caps (GstBaseTransform * base_transform,
GstCaps * incaps, GstCaps * outcaps)
{
GstColorconvert *li;
g_return_val_if_fail (GST_IS_COLORCONVERT (base_transform), GST_FLOW_ERROR);
li = GST_COLORCONVERT (base_transform);
gst_video_format_parse_caps (incaps, &li->format, &li->width, &li->height);
return TRUE;
}
static GstFlowReturn
gst_colorconvert_transform_ip (GstBaseTransform * base_transform,
GstBuffer * buf)
{
GstColorconvert *li;
CogFrame *frame;
CogFrame *vf;
g_return_val_if_fail (GST_IS_COLORCONVERT (base_transform), GST_FLOW_ERROR);
li = GST_COLORCONVERT (base_transform);
frame = gst_cog_buffer_wrap (gst_buffer_ref (buf),
li->format, li->width, li->height);
vf = cog_virt_frame_new_unpack (cog_frame_ref (frame));
vf = cog_virt_frame_new_subsample (vf, COG_FRAME_FORMAT_U8_444,
COG_CHROMA_SITE_MPEG2, 2);
vf = cog_virt_frame_new_color_transform (vf);
if (frame->format == COG_FRAME_FORMAT_YUYV) {
vf = cog_virt_frame_new_subsample (vf, COG_FRAME_FORMAT_U8_422,
COG_CHROMA_SITE_MPEG2, 2);
vf = cog_virt_frame_new_pack_YUY2 (vf);
} else if (frame->format == COG_FRAME_FORMAT_UYVY) {
vf = cog_virt_frame_new_subsample (vf, COG_FRAME_FORMAT_U8_422,
COG_CHROMA_SITE_MPEG2, 2);
vf = cog_virt_frame_new_pack_UYVY (vf);
} else if (frame->format == COG_FRAME_FORMAT_AYUV) {
vf = cog_virt_frame_new_pack_AYUV (vf);
} else if (frame->format == COG_FRAME_FORMAT_U8_420) {
vf = cog_virt_frame_new_subsample (vf, COG_FRAME_FORMAT_U8_420,
COG_CHROMA_SITE_MPEG2, 2);
} else {
g_assert_not_reached ();
}
cog_virt_frame_render (vf, frame);
cog_frame_unref (frame);
cog_frame_unref (vf);
return GST_FLOW_OK;
}
static void
color_transform (CogFrame * frame, void *_dest, int component, int j)
{
uint8_t *dest = _dest;
uint8_t *src_y;
uint8_t *src_u;
uint8_t *src_v;
uint8_t *table;
int i;
table = COG_OFFSET (frame->virt_priv2, component * 0x1000000);
src_y = cog_virt_frame_get_line (frame->virt_frame1, 0, j);
src_u = cog_virt_frame_get_line (frame->virt_frame1, 1, j);
src_v = cog_virt_frame_get_line (frame->virt_frame1, 2, j);
for (i = 0; i < frame->width; i++) {
dest[i] = table[(src_y[i] << 16) | (src_u[i] << 8) | (src_v[i])];
}
}
static uint8_t *get_color_transform_table (void);
static CogFrame *
cog_virt_frame_new_color_transform (CogFrame * frame)
{
CogFrame *virt_frame;
g_return_val_if_fail (frame->format == COG_FRAME_FORMAT_U8_444, NULL);
virt_frame = cog_frame_new_virtual (NULL, COG_FRAME_FORMAT_U8_444,
frame->width, frame->height);
virt_frame->virt_frame1 = frame;
virt_frame->render_line = color_transform;
virt_frame->virt_priv2 = get_color_transform_table ();
return virt_frame;
}
static uint8_t *
get_color_transform_table (void)
{
static uint8_t *color_transform_table = NULL;
#if 1
if (!color_transform_table) {
ColorMatrix bt601_to_rgb;
ColorMatrix bt601_to_yuv;
ColorMatrix bt601_rgb_to_XYZ;
ColorMatrix dell_XYZ_to_rgb;
uint8_t *table_y;
uint8_t *table_u;
uint8_t *table_v;
int y, u, v;
color_matrix_build_yuv_to_rgb_601 (&bt601_to_rgb);
color_matrix_build_rgb_to_yuv_601 (&bt601_to_yuv);
color_matrix_build_rgb_to_XYZ_601 (&bt601_rgb_to_XYZ);
color_matrix_build_XYZ_to_rgb_dell (&dell_XYZ_to_rgb);
color_transform_table = g_malloc (0x1000000 * 3);
table_y = COG_OFFSET (color_transform_table, 0 * 0x1000000);
table_u = COG_OFFSET (color_transform_table, 1 * 0x1000000);
table_v = COG_OFFSET (color_transform_table, 2 * 0x1000000);
for (y = 0; y < 256; y++) {
for (u = 0; u < 256; u++) {
for (v = 0; v < 256; v++) {
Color c;
c.v[0] = y;
c.v[1] = u;
c.v[2] = v;
color_matrix_apply (&bt601_to_rgb, &c, &c);
color_gamut_clamp (&c, &c);
color_transfer_function_apply (&c, &c);
color_matrix_apply (&bt601_rgb_to_XYZ, &c, &c);
color_matrix_apply (&dell_XYZ_to_rgb, &c, &c);
color_transfer_function_unapply (&c, &c);
color_gamut_clamp (&c, &c);
color_matrix_apply (&bt601_to_yuv, &c, &c);
table_y[(y << 16) | (u << 8) | (v)] = rint (c.v[0]);
table_u[(y << 16) | (u << 8) | (v)] = rint (c.v[1]);
table_v[(y << 16) | (u << 8) | (v)] = rint (c.v[2]);
}
}
}
}
#endif
#if 0
if (!color_transform_table) {
ColorMatrix bt709_to_bt601;
uint8_t *table_y;
uint8_t *table_u;
uint8_t *table_v;
int y, u, v;
color_matrix_build_bt709_to_bt601 (&bt709_to_bt601);
color_transform_table = g_malloc (0x1000000 * 3);
table_y = COG_OFFSET (color_transform_table, 0 * 0x1000000);
table_u = COG_OFFSET (color_transform_table, 1 * 0x1000000);
table_v = COG_OFFSET (color_transform_table, 2 * 0x1000000);
for (y = 0; y < 256; y++) {
for (u = 0; u < 256; u++) {
for (v = 0; v < 256; v++) {
Color c;
c.v[0] = y;
c.v[1] = u;
c.v[2] = v;
color_matrix_apply (&bt709_to_bt601, &c, &c);
table_y[(y << 16) | (u << 8) | (v)] = rint (c.v[0]);
table_u[(y << 16) | (u << 8) | (v)] = rint (c.v[1]);
table_v[(y << 16) | (u << 8) | (v)] = rint (c.v[2]);
}
}
}
}
#endif
return color_transform_table;
}