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coloreffects: new plugin for lookup table color mapping

Browse source 
Implements a color lookup table filter with 4 presets:
 - heat: fake heat camera effect
 - sepia: sepia toning
 - xray: invert + shade to blue
 - xpro: cross process

https://bugzilla.gnome.org/show_bug.cgi?id=625817
This commit is contained in:
Filippo Argiolas 2010-08-01 23:03:24 +02:00 committed by Sebastian Dröge
parent 76b4ed4ef1
commit 79c343bade
5 changed files with 644 additions and 0 deletions
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1
configure.ac
View file

@ -1677,6 +1677,7 @@ gst/autoconvert/Makefile
gst/bayer/Makefile
gst/camerabin/Makefile
gst/cdxaparse/Makefile
gst/coloreffects/Makefile
gst/dataurisrc/Makefile
gst/dccp/Makefile
gst/debugutils/Makefile

16
gst/coloreffects/Makefile.am Normal file
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@ -0,0 +1,16 @@
plugin_LTLIBRARIES = libgstcoloreffects.la
libgstcoloreffects_la_SOURCES = \
gstplugin.c \
gstcoloreffects.c
libgstcoloreffects_la_CFLAGS = \
$(GST_PLUGINS_BASE_CFLAGS) \
$(GST_CFLAGS)
libgstcoloreffects_la_LIBADD = \
$(GST_PLUGINS_BASE_LIBS) -lgstvideo-@GST_MAJORMINOR@ \
$(GST_BASE_LIBS) \
$(GST_LIBS)
libgstcoloreffects_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstcoloreffects_la_LIBTOOLFLAGS = --tag=disable-static
noinst_HEADERS = gstcoloreffects.h

476
gst/coloreffects/gstcoloreffects.c Normal file
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@ -0,0 +1,476 @@
/* GStreamer
* Copyright (C) <2010> Filippo Argiolas <filippo.argiolas@gmail.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.
*/
/**
* SECTION:element-color-lut
*
* Map colors of the video input to a lookup table
*
* <refsect2>
* <title>Example launch line</title>
* |[
* gst-launch -v videotestsrc ! coloreffects preset=heat ! ffmpegcolorspace ! autovideosink
* ]| This pipeline shows the effect of coloreffects on a test stream.
* </refsect2>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/video/video.h>
#include "gstcoloreffects.h"
#define DEFAULT_PROP_PRESET GST_COLOR_EFFECTS_PRESET_NONE
GST_DEBUG_CATEGORY_STATIC (coloreffects_debug);
#define GST_CAT_DEFAULT (coloreffects_debug)
enum
{
PROP_0,
PROP_PRESET
};
GST_BOILERPLATE (GstColorEffects, gst_color_effects, GstVideoFilter,
GST_TYPE_VIDEO_FILTER);
#define CAPS_STR GST_VIDEO_CAPS_ARGB ";" GST_VIDEO_CAPS_BGRA ";"\
GST_VIDEO_CAPS_ABGR ";" GST_VIDEO_CAPS_RGBA ";"\
GST_VIDEO_CAPS_xRGB ";" GST_VIDEO_CAPS_RGBx ";"\
GST_VIDEO_CAPS_xBGR ";" GST_VIDEO_CAPS_BGRx ";"\
GST_VIDEO_CAPS_RGB ";" GST_VIDEO_CAPS_BGR ";"
static GstStaticPadTemplate gst_color_effects_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (CAPS_STR)
);
static GstStaticPadTemplate gst_color_effects_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (CAPS_STR)
);
#define GST_TYPE_COLOR_EFFECTS_PRESET (gst_color_effects_preset_get_type())
static GType
gst_color_effects_preset_get_type (void)
{
static GType preset_type = 0;
static const GEnumValue presets[] = {
{GST_COLOR_EFFECTS_PRESET_NONE, "Do nothing preset", "none"},
{GST_COLOR_EFFECTS_PRESET_HEAT, "Fake heat camera toning", "heat"},
{GST_COLOR_EFFECTS_PRESET_SEPIA, "Sepia toning", "sepia"},
{GST_COLOR_EFFECTS_PRESET_XRAY, "Invert and slightly shade to blue",
"xray"},
{GST_COLOR_EFFECTS_PRESET_XPRO, "Cross processing toning", "xpro"},
{0, NULL, NULL},
};
if (!preset_type) {
preset_type = g_enum_register_static ("GstColorEffectsPreset", presets);
}
return preset_type;
}
/*
* Currently hardcoded tables, in the future may be nice to load them
* from a file or just leave these as default presets and add a
* property to load a custom one from file
*/
/*
* Tables were produced roughly this way:
* - take a sample image
* - open with the gimp and play with the Curves tool until you find the desired effect
* - save the curve
* - create a new 256x1 rgb image and paint a black to white gradient on it
* - apply the curve
* - save as "C source"
* - the array in the saved file is the lookup table
*/
/* in the future the latter steps would be save to png/bmp/anything else and feed it to the plugin */
/* 256 * 3 RGB data */
static const guint8 sepia_table[768] =
"\0\0\0\0\0\0\0\0\0\0\1\0\1\1\0\1\1\0\1\1\1\2\1\1\2\2\1\3\2\1\3\2\1\3\2\1"
"\4\3\2\4\3\2\4\3\2\6\4\2\6\4\2\6\4\2\7\5\2\7\5\3\11\6\3\11\6\3\12\7\3\13"
"\10\3\15\10\4\16\11\4\17\11\4\21\12\4\22\13\4\22\13\5\23\14\5\24\15\5\26"
"\16\6\31\20\6\31\21\6\32\22\7\34\22\7\35\23\7\40\24\10\40\26\10!\26\11#\30"
"\11&\31\12&\32\12'\34\13)\34\13*\37\13,\37\13-\40\14.\"\15" "0\"\15"
"2#\17" "" "3&\17" "4&\17" "5'\20" "8(\21"
"9)\21:*\23<,\23=-\23A.\24A0\25B0\25C2\26D3"
"\30H4\30H7\31K7\32K8\32L9\33M:\34P<\34Q=\35S>\37T?\37UA\40VB!XC!ZD#\\F#^"
"G#^J$`J&bK'bM'eM(fO)gP)iQ*kS,mT-mU-nV.oX/rY0sZ2u]2v]3w^3x`4za5{c7|c8~e8\177"
"f9\200i:\203i<\204j<\206k=\207m>\210n?\211o?\213qA\214rC\215sC\217uD\220"
"vD\221wF\223xG\224zH\225{J\227|K\230~K\231\177L\232\200M\234\202O\235\203"
"P\236\204Q\240\206Q\241\207S\242\210T\243\211U\245\213V\246\214X\247\215"
"Y\250\217Y\252\220Z\253\221\\\254\223]\254\224^\255\225`\257\227a\260\230"
"b\261\231c\262\232e\264\234e\265\235f\266\236g\267\240i\267\241i\272\242"
"k\273\243m\274\245n\274\246o\276\247q\277\250r\300\252s\301\253u\302\254"
"v\304\255w\305\257x\306\257z\306\261{\307\262|\310\264~\310\265\177\313\266"
"\200\314\267\202\315\267\203\316\272\204\317\273\206\317\274\207\320\276"
"\210\322\277\211\323\277\213\324\301\214\325\302\215\326\304\217\326\305"
"\220\327\306\221\327\307\223\331\310\224\333\311\225\334\311\227\334\313"
"\227\335\315\231\335\316\231\337\317\234\340\320\235\341\320\235\341\323"
"\240\342\324\241\343\324\242\343\326\243\345\327\245\345\330\245\346\331"
"\250\346\333\252\347\334\253\351\335\254\351\335\255\351\337\257\352\340"
"\260\353\341\260\354\342\262\355\343\264\355\344\265\355\345\266\356\346"
"\266\356\347\272\357\350\273\360\351\274\360\351\276\361\352\277\361\353"
"\300\362\353\301\362\354\302\362\355\304\362\356\305\364\357\305\364\357"
"\310\364\360\311\365\361\313\365\361\314\366\362\315\366\362\316\366\363"
"\316\367\364\320\367\364\320\367\365\324\367\365\324\370\366\326\370\366"
"\327\371\366\330\371\367\331\371\367\333\371\370\333\372\370\336\372\370"
"\336\372\371\340\373\371\341\373\372\342\373\372\343\374\372\344\374\373"
"\344\374\373\347\374\374\350\375\374\351\375\374\351\375\374\352\375\375"
"\352\376\375\353\376\376\355\376\376\356\376\376\357\377\377\357";
static const guint8 heat_table[768] =
"\0\0\0\0\0\0\0\1\0\0\1\0\0\1\1\0\2\1\0\2\1\1\2\1\1\2\2\1\2\2\1\3\2\1\3\3"
"\1\3\3\1\4\3\1\4\4\1\5\4\1\5\5\2\5\6\2\6\6\2\6\7\2\6\7\2\7\7\2\7\11\2\10"
"\11\2\10\12\3\11\13\3\11\13\3\11\14\3\12\15\3\12\17\3\13\17\3\14\20\3\14"
"\22\4\15\23\4\16\24\4\16\26\4\16\27\4\17\31\4\20\34\4\21\34\5\21\40\5\22"
"\40\5\22$\5\23$\5\25&\6\25(\6\26-\6\26-\6\27" "0\6\31" "2\7\31"
"5\7\32;\7\34"
";\7\34?\10\35C\10\36G\10\37L\10\40V\11!V\11\"[\11$a\11&l\12&l\12'r\12(~\13"
"*~\13,\204\14,\213\14.\221\14/\227\14" "1\236\15" "2\244\15" "4\252\15"
"5\260" "\16" "7\267\16"
"8\275\17:\302\17;\310\17=\323\20?\323\21@\330\21D\335\21D"
"\342\22E\346\22I\353\23I\356\23K\362\24M\365\24N\370\25P\372\26R\374\26T"
"\376\26V\377\27X\377\27Z\377\30\\\376\31`\376\31`\375\32b\373\32d\371\33"
"f\366\34j\363\34j\360\35l\354\36n\350\36r\344\37r\337\40t\333\40w\326!y\321"
"\"|\314#~\307$\201\301$\204\267%\207\267&\212\261'\214\254(\217\247(\222"
"\241)\226\234*\231\227+\234\222,\237\216-\242\211.\245\205/\251\2010\254"
"}1\257z2\262w3\266t4\271p5\274m6\277j7\302f8\305c9\310`:\314\\;\317Y<\321"
"V>\324S?\327P@\332LA\335IB\337FC\342CE\344@F\347=G\351;I\3538I\3558M\357"
"3P\3610S\363.V\365+Y\366)\\\370'`\371%d\372#g\373\"l\374\40p\374\37t\374"
"\35t\375\34}\376\33\202\376\32\202\375\31\213\375\30\220\375\27\225\375\27"
"\232\373\26\237\372\25\244\371\24\251\370\23\256\367\23\262\367\22\267\364"
"\21\274\362\20\300\361\20\305\357\17\311\355\16\311\353\16\322\351\15\326"
"\346\15\332\346\14\336\344\14\341\337\13\341\335\13\350\332\12\353\330\11"
"\356\330\11\360\322\10\362\320\10\364\320\10\364\312\7\366\307\7\366\304"
"\7\367\302\6\367\277\6\370\274\5\367\271\5\367\271\5\367\263\4\365\260\4"
"\364\255\4\363\253\3\362\250\3\361\245\3\360\242\3\357\240\3\357\235\2\355"
"\232\2\355\227\2\354\225\2\353\221\1\353\216\1\353\216\1\353\213\1\353\204"
"\1\353\201\1\354}\1\354y\0\354v\0\355r\0\355n\0\355j\0\356f\0\356b\0\357"
"_\0\357[\0\357W\0\357S\0\360O\0\360O\0\361K\0\361C\0\362@\0\363<\0\3638\0"
"\3648\0\3641\0\365.\0\366+\0\366'\0\367'\0\370!\0\370\36\0\370\33\0\371\30"
"\0\371\26\0\373\26\0\373\23\0\374\15\0\374\13\0\375\10\0\375\5\0\376\3\0";
static const guint8 xray_table[768] =
"\377\377\377\377\377\377\376\376\376\375\375\376\374\375\375\373\374\375"
"\372\374\374\371\374\374\370\373\373\366\373\372\366\372\372\365\372\371"
"\363\371\371\363\371\370\362\370\370\360\370\367\360\367\366\357\367\365"
"\356\366\365\355\366\364\353\365\363\353\365\363\352\364\362\351\363\362"
"\347\363\361\346\362\361\345\362\361\344\362\360\343\361\357\343\361\356"
"\342\360\356\341\360\356\340\357\355\336\356\354\336\356\354\335\355\353"
"\334\355\353\333\355\352\331\354\351\331\353\351\330\353\350\327\353\350"
"\325\352\347\325\351\347\324\350\346\323\350\345\322\347\344\321\347\344"
"\320\347\344\317\346\343\316\346\342\315\345\341\314\344\341\313\344\340"
"\312\344\340\311\343\337\310\342\337\307\342\335\306\341\335\305\341\335"
"\303\340\334\303\337\333\302\337\333\301\337\332\300\336\331\276\335\331"
"\276\334\330\274\334\330\274\334\327\273\333\327\272\333\326\271\332\325"
"\270\332\325\267\331\324\266\330\323\265\330\323\264\327\322\263\327\321"
"\262\326\320\261\325\320\257\325\317\257\324\317\256\324\316\254\323\315"
"\254\322\315\253\322\314\252\321\313\251\321\313\250\320\312\246\317\311"
"\245\317\311\245\316\310\244\316\307\243\315\307\242\314\306\241\314\305"
"\240\312\305\237\312\304\236\312\303\235\311\303\234\311\302\233\307\301"
"\232\307\300\231\307\300\230\306\277\227\305\276\226\305\276\225\304\275"
"\224\303\274\223\303\273\222\302\273\221\301\272\220\301\271\217\300\270"
"\216\277\270\215\277\267\214\276\266\213\275\265\212\275\265\211\274\264"
"\210\273\263\207\273\262\206\272\262\205\271\261\204\270\260\203\270\257"
"\202\267\257\201\266\256\200\266\255\177\265\254~\264\253}\263\253|\263\252"
"{\262\251z\261\250y\260\247x\260\247w\257\246v\256\245u\255\244t\255\243"
"s\254\243r\253\242q\252\241p\252\240o\251\237n\250\236m\247\235l\246\235"
"l\246\235j\245\233i\244\232h\243\231g\242\230f\242\227e\241\226d\240\226"
"c\237\225b\236\224a\235\223`\234\222_\234\221_\233\220]\232\217\\\231\216"
"\\\230\215Z\227\214Y\226\214X\226\213W\225\212V\224\211U\223\210T\222\207"
"S\221\206R\221\205Q\217\204P\216\203O\215\202N\215\201M\214\200M\213\177"
"K\212~J\211}I\211|H\210|G\206zG\205zE\204xD\203vC\203vB\201tA\200s@\200q"
"@~p>}o>|o<{l<yk;xi9wh8wg8te6sd5qd4pa3n_2m]1k\\0j\\0hY.fW-dU,cT+aR*_P)_O("
"]M'YK'XI%VI$TF$RD\"OB!M@\40K?\37I=\37G=\35E9\34C9\34A5\33>5\31<2\31<0\27"
":.\27" "5,\26" "3*\24"
"1*\23.&\22.&\22*\"\21'\40\17%\36\16\"\34\15\"\32\14"
"\36\32\13\33\26\13\31\24\11\26\22\11\24\20\7\24\16\6\21\16\5\14\14\4\12\10"
"\3\7\6\3\5\4\1\2\2";
static const guint8 xpro_table[768] =
"\0\0\37\0\0\37\0\1\40\0\2!\0\2\"\0\3\"\1\4%\1\4%\1\5%\1\5'\1\7'\1\7(\1\7"
"(\1\10*\1\11+\1\11,\1\12,\1\13/\1\14/\1\14" "1\2\15" "1\2\15" "1\2\16"
"4\2\17" "" "4\3\17" "5\3\22" "7\3\22" "7\3\23" "8\3\24"
"9\3\25;\3\26;\3\27<\3\27=\4\31"
"=\4\33?\4\34@\5\34B\5\35C\5\36D\5\40D\5\40G\5!G\6\"H\6$H\7&J\7&K\7*M\7*M"
"\10+N\10-P\11-P\11/R\11" "3R\11" "3T\12" "4U\12" "5U\13" "7W\14" "8Y\14"
"9Y\14"
"<Y\16=[\16@^\16@^\17C^\17D`\20F`\20Jb\22Jb\22Kc\23Me\24Nf\25Qg\26Rg\27Ti"
"\27Wj\30Xl\31Yl\33\\m\34^p\35`p\40bp\40fq!fr$gt$lt%lu'mv(px*qy-ty/uz/x|0"
"y}3|}4}~5\177\2018\203\2019\203\201;\204\202=\207\203?\210\204@\214\204C"
"\214\206D\216\207G\217\210H\223\211K\223\211M\225\212P\226\214Q\231\215T"
"\232\215U\234\216X\235\217Y\240\220\\\241\220^\243\221`\244\223b\246\224"
"e\250\224f\252\225i\253\226l\255\227m\256\231p\261\231q\262\232t\264\233"
"v\265\234x\267\234z\270\235|\271\236~\274\240\201\275\240\202\277\241\204"
"\300\242\207\302\243\210\303\243\212\305\244\214\306\245\216\307\246\220"
"\311\250\221\313\250\224\315\251\226\316\252\227\317\253\232\321\253\234"
"\322\254\235\323\255\240\325\256\242\326\256\242\330\256\245\331\261\250"
"\331\262\251\332\262\253\334\263\255\335\264\256\336\265\261\340\266\263"
"\341\266\264\342\267\266\343\270\270\344\271\271\344\271\271\346\273\276"
"\347\274\277\350\275\277\351\275\302\352\276\304\353\277\306\353\300\307"
"\355\300\311\356\301\314\356\302\315\357\303\317\360\304\320\360\304\322"
"\361\305\323\362\306\325\362\307\327\363\307\330\363\310\330\364\311\333"
"\364\313\334\365\313\336\365\314\340\365\314\342\366\316\342\366\316\346"
"\367\317\347\367\320\351\367\320\353\370\322\354\370\322\356\370\323\356"
"\370\324\360\371\325\360\371\325\363\371\326\363\371\327\363\372\330\365"
"\372\330\366\372\331\366\372\331\370\372\332\371\373\332\371\373\333\372"
"\373\334\373\373\335\373\373\336\374\373\336\374\374\337\374\374\340\375"
"\374\341\375\374\341\376\374\342\376\374\343\376\374\344\376\374\344\377"
"\374\345\377\374\346\377\375\346\377\375\346\377\375\347\377\375\350\377"
"\375\351\377\375\352\377\375\352\377\375\352\377\375\353\377\375\353\377"
"\376\354\377\376\354\377\376\356\377\376\356\377\376\356\377\376\357\377"
"\376\360\377\376\360\377\376\360\377\376\360\377\376\362\377\376\362\377"
"\376\363\377\376\363\377\376\363\377\376\363\377\376\364\377\376\364\377"
"\376\365\377\377\365\377\377\366\377\377\366\377\377\366\377\377\367\377"
"\377\367\377\377\367\377\377\370";
static gboolean
gst_color_effects_set_caps (GstBaseTransform * btrans, GstCaps * incaps,
GstCaps * outcaps)
{
GstColorEffects *filter = GST_COLOR_EFFECTS (btrans);
GST_DEBUG_OBJECT (filter,
"in %" GST_PTR_FORMAT " out %" GST_PTR_FORMAT, incaps, outcaps);
if (!gst_video_format_parse_caps (incaps, &filter->format,
&filter->width, &filter->height))
goto invalid_caps;
GST_OBJECT_LOCK (filter);
filter->size =
gst_video_format_get_size (filter->format, filter->width, filter->height);
GST_OBJECT_UNLOCK (filter);
return TRUE;
invalid_caps:
GST_ERROR_OBJECT (filter, "Invalid caps: %" GST_PTR_FORMAT, incaps);
return FALSE;
}
static GstFlowReturn
gst_color_effects_transform_ip (GstBaseTransform * trans, GstBuffer * out)
{
GstColorEffects *filter = GST_COLOR_EFFECTS (trans);
guint8 *data;
gint i, j;
gint size;
gint width, height;
gint pixel_stride, row_stride, row_wrap;
guint32 r, g, b;
guint32 luma;
gint offsets[3];
data = GST_BUFFER_DATA (out);
size = GST_BUFFER_SIZE (out);
if (size != filter->size)
goto wrong_size;
/* do nothing if there is no table ("none" preset) */
if (filter->table == NULL)
return GST_FLOW_OK;
GST_OBJECT_LOCK (filter);
/* videoformat fun copied from videobalance */
offsets[0] = gst_video_format_get_component_offset (filter->format, 0,
filter->width, filter->height);
offsets[1] = gst_video_format_get_component_offset (filter->format, 1,
filter->width, filter->height);
offsets[2] = gst_video_format_get_component_offset (filter->format, 2,
filter->width, filter->height);
width =
gst_video_format_get_component_width (filter->format, 0, filter->width);
height =
gst_video_format_get_component_height (filter->format, 0, filter->height);
row_stride =
gst_video_format_get_row_stride (filter->format, 0, filter->width);
pixel_stride = gst_video_format_get_pixel_stride (filter->format, 0);
row_wrap = row_stride - pixel_stride * width;
/* transform */
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
r = data[offsets[0]];
g = data[offsets[1]];
b = data[offsets[2]];
if (filter->map_luma) {
/* BT. 709 coefficients in B8 fixed point */
/* 0.2126 R + 0.7152 G + 0.0722 B */
luma = ((r << 8) * 54) + ((g << 8) * 183) + ((b << 8) * 19);
luma >>= 16; /* get integer part */
luma *= 3; /* times 3 to retrieve the correct pixel from the lut */
/* map luma to lookup table */
/* src.luma |-> table[luma].rgb */
data[offsets[0]] = filter->table[luma];
data[offsets[1]] = filter->table[luma + 1];
data[offsets[2]] = filter->table[luma + 2];
} else {
/* map each color component to the correspondent lut color */
/* src.r |-> table[r].r */
/* src.g |-> table[g].g */
/* src.b |-> table[b].b */
data[offsets[0]] = filter->table[r * 3];
data[offsets[1]] = filter->table[g * 3 + 1];
data[offsets[2]] = filter->table[b * 3 + 2];
}
data += pixel_stride;
}
data += row_wrap;
}
GST_OBJECT_UNLOCK (filter);
return GST_FLOW_OK;
wrong_size:
{
GST_ELEMENT_ERROR (filter, STREAM, FORMAT,
(NULL), ("Invalid buffer size %d, expected %d", size, filter->size));
return GST_FLOW_ERROR;
}
}
static void
gst_color_effects_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details_simple (element_class,
"Color Look-up Table filter", "Filter/Effect/Video",
"Color Look-up Table filter",
"Filippo Argiolas <filippo.argiolas@gmail.com>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_color_effects_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_color_effects_src_template));
}
static void
gst_color_effects_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstColorEffects *filter = GST_COLOR_EFFECTS (object);
switch (prop_id) {
case PROP_PRESET:
GST_OBJECT_LOCK (filter);
filter->preset = g_value_get_enum (value);
switch (filter->preset) {
case GST_COLOR_EFFECTS_PRESET_NONE:
filter->table = NULL;
break;
case GST_COLOR_EFFECTS_PRESET_HEAT:
filter->table = heat_table;
filter->map_luma = TRUE;
break;
case GST_COLOR_EFFECTS_PRESET_SEPIA:
filter->table = sepia_table;
filter->map_luma = TRUE;
break;
case GST_COLOR_EFFECTS_PRESET_XRAY:
filter->table = xray_table;
filter->map_luma = TRUE;
break;
case GST_COLOR_EFFECTS_PRESET_XPRO:
filter->table = xpro_table;
filter->map_luma = FALSE;
break;
default:
g_assert_not_reached ();
}
GST_OBJECT_UNLOCK (filter);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_color_effects_get_property (GObject * object, guint prop_id, GValue * value,
GParamSpec * pspec)
{
GstColorEffects *filter = GST_COLOR_EFFECTS (object);
switch (prop_id) {
case PROP_PRESET:
GST_OBJECT_LOCK (filter);
g_value_set_enum (value, filter->preset);
GST_OBJECT_UNLOCK (filter);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_color_effects_class_init (GstColorEffectsClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
GST_DEBUG_CATEGORY_INIT (coloreffects_debug, "coloreffects", 0,
"coloreffects");
gobject_class->set_property = gst_color_effects_set_property;
gobject_class->get_property = gst_color_effects_get_property;
g_object_class_install_property (gobject_class, PROP_PRESET,
g_param_spec_enum ("preset", "preset", "preset",
GST_TYPE_COLOR_EFFECTS_PRESET, DEFAULT_PROP_PRESET,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_color_effects_set_caps);
trans_class->transform_ip =
GST_DEBUG_FUNCPTR (gst_color_effects_transform_ip);
}
static void
gst_color_effects_init (GstColorEffects * filter, GstColorEffectsClass * klass)
{
filter->preset = GST_COLOR_EFFECTS_PRESET_NONE;
filter->table = NULL;
filter->map_luma = TRUE;
gst_pad_use_fixed_caps (GST_BASE_TRANSFORM_SRC_PAD (filter));
gst_pad_use_fixed_caps (GST_BASE_TRANSFORM_SINK_PAD (filter));
}

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/* GStreamer
* Copyright (C) <2010> Filippo Argiolas <filippo.argiolas@gmail.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.
*/
#ifndef __GST_COLOR_EFFECTS_H__
#define __GST_COLOR_EFFECTS_H__
#include <gst/gst.h>
#include <gst/video/video.h>
#include <gst/video/gstvideofilter.h>
G_BEGIN_DECLS
#define GST_TYPE_COLOR_EFFECTS \
(gst_color_effects_get_type())
#define GST_COLOR_EFFECTS(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COLOR_EFFECTS,GstColorEffects))
#define GST_COLOR_EFFECTS_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_COLOR_EFFECTS,GstColorEffectsClass))
#define GST_IS_COLOR_EFFECTS(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COLOR_EFFECTS))
#define GST_IS_COLOR_EFFECTS_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COLOR_EFFECTS))
typedef struct _GstColorEffects GstColorEffects;
typedef struct _GstColorEffectsClass GstColorEffectsClass;
/**
* GstColorEffectsPreset:
* @GST_CLUT_PRESET_NONE: Do nothing preset (default)
* @GST_CLUT_PRESET_HEAT: Fake heat camera effect
* @GST_CLUT_PRESET_SEPIA: Sepia toning filter
* @GST_CLUT_PRESET_XRAY: Invert colors and slightly shade to cyan
* @GST_CLUT_PRESET_XPRO: Cross Processing filter
*
* The lookup table to use to convert input colors
*/
typedef enum
{
GST_COLOR_EFFECTS_PRESET_NONE,
GST_COLOR_EFFECTS_PRESET_HEAT,
GST_COLOR_EFFECTS_PRESET_SEPIA,
GST_COLOR_EFFECTS_PRESET_XRAY,
GST_COLOR_EFFECTS_PRESET_XPRO
} GstColorEffectsPreset;
/**
* GstColorEffects:
*
* Opaque datastructure.
*/
struct _GstColorEffects
{
GstVideoFilter videofilter;
/* < private > */
GstColorEffectsPreset preset;
const guint8 *table;
gboolean map_luma;
/* video format */
GstVideoFormat format;
gint width;
gint height;
gint size;
};
struct _GstColorEffectsClass
{
GstVideoFilterClass parent_class;
};
GType gst_color_effects_get_type (void);
G_END_DECLS
#endif /* __GST_COLOR_EFFECTS_H__ */

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/* GStreamer
* Copyright (C) <2010> Filippo Argiolas <filippo.argiolas@gmail.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 "gstcoloreffects.h"
#ifndef PACKAGE
#define PACKAGE "coloreffects"
#endif
struct _elements_entry
{
const gchar *name;
GType (*type) (void);
};
static const struct _elements_entry _elements[] = {
{"coloreffects", gst_color_effects_get_type},
{NULL, 0},
};
static gboolean
plugin_init (GstPlugin * plugin)
{
gint i = 0;
while (_elements[i].name) {
if (!gst_element_register (plugin, _elements[i].name,
GST_RANK_NONE, (_elements[i].type) ()))
return FALSE;
i++;
}
return TRUE;
}
GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
GST_VERSION_MINOR,
"coloreffects",
"Color Look-up Table filters",
plugin_init, VERSION, "LGPL", "GStreamer", "http://gstreamer.net/")