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cog: remove some old elements so they don't get ported accidentally

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They are replaced by videoconvert and gdkpixbufoverlay
This commit is contained in:
Tim-Philipp Müller 2012-09-29 12:30:20 +01:00
parent 2c2d6b0753
commit 346de28846
4 changed files with 0 additions and 1943 deletions
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3
ext/cog/Makefile.am
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@ -29,14 +29,11 @@ libgstcog_la_SOURCES = \
cogvirtframe.c \
cogvirtframe.h \
gstcog.c \
gstcogcolorspace.c \
gstcogdownsample.c \
gstcogmse.c \
gstcogscale.c \
gstcogutils.c \
gstcogutils.h \
gstcolorconvert.c \
gstlogoinsert.c \
gstcms.h \
gstcms.c
nodist_libgstcog_la_SOURCES = $(ORC_NODIST_SOURCES)

1049
ext/cog/gstcogcolorspace.c
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File diff suppressed because it is too large Load diff

383
ext/cog/gstcolorconvert.c
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@ -1,383 +0,0 @@
/* 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_metadata (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;
}

508
ext/cog/gstlogoinsert.c
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@ -1,508 +0,0 @@
/* 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 <math.h>
#include <png.h>
#include "gstcogutils.h"
#define GST_TYPE_LOGOINSERT \
(gst_logoinsert_get_type())
#define GST_LOGOINSERT(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_LOGOINSERT,GstLogoinsert))
#define GST_LOGOINSERT_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_LOGOINSERT,GstLogoinsertClass))
#define GST_IS_LOGOINSERT(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_LOGOINSERT))
#define GST_IS_LOGOINSERT_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_LOGOINSERT))
typedef struct _GstLogoinsert GstLogoinsert;
typedef struct _GstLogoinsertClass GstLogoinsertClass;
struct _GstLogoinsert
{
GstBaseTransform base_transform;
char *location;
GstBuffer *buffer;
GstVideoFormat format;
int width;
int height;
gchar *data;
gsize size;
CogFrame *overlay_frame;
CogFrame *argb_frame;
CogFrame *alpha_frame;
};
struct _GstLogoinsertClass
{
GstBaseTransformClass parent_class;
};
enum
{
ARG_0,
ARG_LOCATION,
ARG_DATA
};
GType gst_logoinsert_get_type (void);
GST_DEBUG_CATEGORY_STATIC (gst_logoinsert_debug_category);
#define GST_CAT_DEFAULT gst_logoinsert_debug_category
static void gst_logoinsert_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
static void gst_logoinsert_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_logoinsert_dispose (GObject * object);
static void gst_logoinsert_finalize (GObject * object);
static void
gst_logoinsert_set_location (GstLogoinsert * li, const char *location);
static void gst_logoinsert_set_data (GstLogoinsert * li, GstBuffer * buffer);
static gboolean gst_logoinsert_set_caps (GstBaseTransform * base_transform,
GstCaps * incaps, GstCaps * outcaps);
static GstFlowReturn gst_logoinsert_transform_ip (GstBaseTransform *
base_transform, GstBuffer * buf);
static CogFrame *cog_frame_new_from_png (void *data, int size);
static CogFrame *cog_virt_frame_extract_alpha (CogFrame * frame);
static CogFrame *cog_frame_realize (CogFrame * frame);
static GstStaticPadTemplate gst_logoinsert_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
);
static GstStaticPadTemplate gst_logoinsert_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420"))
);
/* class initialization */
#define DEBUG_INIT(bla) \
GST_DEBUG_CATEGORY_INIT (gst_logoinsert_debug_category, "logoinsert", 0, \
"debug category for logoinsert element");
GST_BOILERPLATE_FULL (GstLogoinsert, gst_logoinsert, GstBaseTransform,
GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
static void
gst_logoinsert_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_logoinsert_src_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_logoinsert_sink_template));
gst_element_class_set_metadata (element_class,
"Overlay image onto video", "Filter/Effect/Video",
"Overlay image onto video", "David Schleef <ds@schleef.org>");
}
static void
gst_logoinsert_class_init (GstLogoinsertClass * klass)
{
GObjectClass *gobject_class;
GstBaseTransformClass *base_transform_class;
gobject_class = G_OBJECT_CLASS (klass);
base_transform_class = GST_BASE_TRANSFORM_CLASS (klass);
gobject_class->set_property = gst_logoinsert_set_property;
gobject_class->get_property = gst_logoinsert_get_property;
gobject_class->dispose = gst_logoinsert_dispose;
gobject_class->finalize = gst_logoinsert_finalize;
g_object_class_install_property (gobject_class, ARG_LOCATION,
g_param_spec_string ("location", "location",
"location of PNG file to overlay", "",
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, ARG_DATA,
gst_param_spec_mini_object ("data", "data",
"Buffer containing PNG file to overlay", GST_TYPE_BUFFER,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
base_transform_class->set_caps = gst_logoinsert_set_caps;
base_transform_class->transform_ip = gst_logoinsert_transform_ip;
}
static void
gst_logoinsert_init (GstLogoinsert * logoinsert,
GstLogoinsertClass * logoinsert_class)
{
GST_DEBUG ("gst_logoinsert_init");
}
static void
gst_logoinsert_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstLogoinsert *src;
g_return_if_fail (GST_IS_LOGOINSERT (object));
src = GST_LOGOINSERT (object);
GST_DEBUG ("gst_logoinsert_set_property");
switch (prop_id) {
case ARG_LOCATION:
gst_logoinsert_set_location (src, g_value_get_string (value));
break;
case ARG_DATA:
gst_logoinsert_set_data (src,
(GstBuffer *) gst_value_get_mini_object (value));
break;
default:
break;
}
}
static void
gst_logoinsert_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstLogoinsert *src;
g_return_if_fail (GST_IS_LOGOINSERT (object));
src = GST_LOGOINSERT (object);
switch (prop_id) {
case ARG_LOCATION:
g_value_set_string (value, src->location);
break;
case ARG_DATA:
gst_value_set_mini_object (value, (GstMiniObject *) src->buffer);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
void
gst_logoinsert_dispose (GObject * object)
{
g_return_if_fail (GST_IS_LOGOINSERT (object));
/* clean up as possible. may be called multiple times */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
void
gst_logoinsert_finalize (GObject * object)
{
GstLogoinsert *logoinsert;
g_return_if_fail (GST_IS_LOGOINSERT (object));
logoinsert = GST_LOGOINSERT (object);
g_free (logoinsert->location);
if (logoinsert->buffer) {
gst_buffer_unref (logoinsert->buffer);
}
if (logoinsert->overlay_frame) {
cog_frame_unref (logoinsert->overlay_frame);
logoinsert->overlay_frame = NULL;
}
if (logoinsert->alpha_frame) {
cog_frame_unref (logoinsert->alpha_frame);
logoinsert->alpha_frame = NULL;
}
if (logoinsert->argb_frame) {
cog_frame_unref (logoinsert->argb_frame);
logoinsert->argb_frame = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_logoinsert_set_caps (GstBaseTransform * base_transform,
GstCaps * incaps, GstCaps * outcaps)
{
GstLogoinsert *li;
g_return_val_if_fail (GST_IS_LOGOINSERT (base_transform), GST_FLOW_ERROR);
li = GST_LOGOINSERT (base_transform);
gst_video_format_parse_caps (incaps, &li->format, &li->width, &li->height);
return TRUE;
}
static GstFlowReturn
gst_logoinsert_transform_ip (GstBaseTransform * base_transform, GstBuffer * buf)
{
GstLogoinsert *li;
CogFrame *frame;
g_return_val_if_fail (GST_IS_LOGOINSERT (base_transform), GST_FLOW_ERROR);
li = GST_LOGOINSERT (base_transform);
if (li->argb_frame == NULL)
return GST_FLOW_OK;
frame = gst_cog_buffer_wrap (gst_buffer_ref (buf),
li->format, li->width, li->height);
if (li->overlay_frame == NULL) {
CogFrame *f;
f = cog_virt_frame_extract_alpha (cog_frame_ref (li->argb_frame));
f = cog_virt_frame_new_subsample (f, frame->format,
COG_CHROMA_SITE_MPEG2, 2);
li->alpha_frame = cog_frame_realize (f);
f = cog_virt_frame_new_unpack (cog_frame_ref (li->argb_frame));
f = cog_virt_frame_new_color_matrix_RGB_to_YCbCr (f, COG_COLOR_MATRIX_SDTV,
8);
f = cog_virt_frame_new_subsample (f, frame->format,
COG_CHROMA_SITE_MPEG2, 2);
li->overlay_frame = cog_frame_realize (f);
}
if (1) {
int i, j;
int k;
guint8 *dest;
guint8 *src;
guint8 *alpha;
int offset_x, offset_y;
for (k = 0; k < 3; k++) {
offset_x = frame->components[k].width -
li->alpha_frame->components[k].width;
offset_y = frame->components[k].height -
li->alpha_frame->components[k].height;
for (j = 0; j < li->overlay_frame->components[k].height; j++) {
dest = COG_FRAME_DATA_GET_LINE (frame->components + k, j + offset_y);
src = COG_FRAME_DATA_GET_LINE (li->overlay_frame->components + k, j);
alpha = COG_FRAME_DATA_GET_LINE (li->alpha_frame->components + k, j);
#define oil_divide_255(x) ((((x)+128) + (((x)+128)>>8))>>8)
for (i = 0; i < li->overlay_frame->components[k].width; i++) {
dest[i + offset_x] =
oil_divide_255 (src[i] * alpha[i] + dest[i + offset_x] * (255 -
alpha[i]));
}
}
}
}
cog_frame_unref (frame);
return GST_FLOW_OK;
}
static GstBuffer *
get_buffer_from_file (const char *filename)
{
gboolean ret;
GstBuffer *buffer;
gsize size;
gchar *data;
ret = g_file_get_contents (filename, &data, &size, NULL);
if (!ret)
return NULL;
buffer = gst_buffer_new ();
GST_BUFFER_DATA (buffer) = (guchar *) data;
GST_BUFFER_MALLOCDATA (buffer) = (guchar *) data;
GST_BUFFER_SIZE (buffer) = size;
return buffer;
}
static void
gst_logoinsert_set_location (GstLogoinsert * li, const char *location)
{
g_free (li->location);
li->location = g_strdup (location);
gst_logoinsert_set_data (li, get_buffer_from_file (li->location));
}
static void
gst_logoinsert_set_data (GstLogoinsert * li, GstBuffer * buffer)
{
if (li->buffer)
gst_buffer_unref (li->buffer);
/* steals the reference */
li->buffer = buffer;
if (li->overlay_frame) {
cog_frame_unref (li->overlay_frame);
li->overlay_frame = NULL;
}
if (li->alpha_frame) {
cog_frame_unref (li->alpha_frame);
li->alpha_frame = NULL;
}
if (li->argb_frame) {
cog_frame_unref (li->argb_frame);
li->argb_frame = NULL;
}
if (li->buffer) {
li->argb_frame = cog_frame_new_from_png (GST_BUFFER_DATA (li->buffer),
GST_BUFFER_SIZE (li->buffer));
}
}
/* load PNG into CogFrame */
struct png_data_struct
{
unsigned char *data;
int size;
int offset;
};
static void
read_data (png_structp png_ptr, png_bytep data, png_size_t length)
{
struct png_data_struct *s = png_get_io_ptr (png_ptr);
memcpy (data, s->data + s->offset, length);
s->offset += length;
}
static CogFrame *
cog_frame_new_from_png (void *data, int size)
{
struct png_data_struct s = { 0 };
png_structp png_ptr;
png_infop info_ptr;
png_bytep *rows;
CogFrame *frame;
guchar *frame_data;
int j;
int width, height;
int color_type;
png_ptr = png_create_read_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
info_ptr = png_create_info_struct (png_ptr);
s.data = data;
s.size = size;
png_set_read_fn (png_ptr, (void *) &s, read_data);
png_read_info (png_ptr, info_ptr);
width = png_get_image_width (png_ptr, info_ptr);
height = png_get_image_height (png_ptr, info_ptr);
color_type = png_get_color_type (png_ptr, info_ptr);
GST_DEBUG ("PNG size %dx%d color_type %d", width, height, color_type);
png_set_strip_16 (png_ptr);
png_set_packing (png_ptr);
if (color_type == PNG_COLOR_TYPE_RGB) {
png_set_filler (png_ptr, 0xff, PNG_FILLER_BEFORE);
}
if (color_type == PNG_COLOR_TYPE_RGB_ALPHA) {
png_set_swap_alpha (png_ptr);
}
frame_data = g_malloc (width * height * 4);
frame = cog_frame_new_from_data_ARGB (frame_data, width, height);
frame->regions[0] = frame_data;
rows = (png_bytep *) g_malloc (sizeof (png_bytep) * height);
for (j = 0; j < height; j++) {
rows[j] = COG_FRAME_DATA_GET_LINE (frame->components + 0, j);
}
png_read_image (png_ptr, rows);
g_free (rows);
png_destroy_read_struct (&png_ptr, &info_ptr, (png_infopp) NULL);
return frame;
}
static void
extract_alpha (CogFrame * frame, void *_dest, int component, int j)
{
uint8_t *dest = _dest;
uint8_t *src;
int i;
src = COG_FRAME_DATA_GET_LINE (frame->virt_frame1->components + 0, j);
for (i = 0; i < frame->width; i++) {
dest[i] = src[i * 4 + 0];
}
}
static CogFrame *
cog_virt_frame_extract_alpha (CogFrame * frame)
{
CogFrame *virt_frame;
/* FIXME check that frame is a real AYUV frame */
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 = extract_alpha;
return virt_frame;
}
static CogFrame *
cog_frame_realize (CogFrame * frame)
{
CogFrame *dest;
dest = cog_frame_clone (NULL, frame);
cog_virt_frame_render (frame, dest);
cog_frame_unref (frame);
return dest;
}