move the av_parse_color() function from libavfilter to libavcore

Originally committed as revision 25761 to svn://svn.ffmpeg.org/ffmpeg/trunk

doc/APIchanges

@@ -13,6 +13,9 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
+  Add av_parse_color() declared in libavcore/parseutils.h.
+
 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
   Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
   fields.

libavcore/avcore.h

@@ -27,8 +27,8 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVCORE_VERSION_MAJOR  0
-#define LIBAVCORE_VERSION_MINOR 12
-#define LIBAVCORE_VERSION_MICRO  1
+#define LIBAVCORE_VERSION_MINOR 13
+#define LIBAVCORE_VERSION_MICRO  0
 
 #define LIBAVCORE_VERSION_INT   AV_VERSION_INT(LIBAVCORE_VERSION_MAJOR, \
                                                LIBAVCORE_VERSION_MINOR, \

libavcore/parseutils.c

@@ -21,9 +21,12 @@
  * misc parsing utilities for libavcore
  */
 
+#include <strings.h>
 #include "parseutils.h"
 #include "libavutil/avutil.h"
 #include "libavutil/eval.h"
+#include "libavutil/avstring.h"
+#include "libavutil/random_seed.h"
 
 typedef struct {
     const char *abbr;
@@ -137,6 +140,237 @@ int av_parse_video_rate(AVRational *rate, const char *arg)
     return 0;
 }
 
+typedef struct {
+    const char *name;            ///< a string representing the name of the color
+    uint8_t     rgb_color[3];    ///< RGB values for the color
+} ColorEntry;
+
+static ColorEntry color_table[] = {
+    { "AliceBlue",            { 0xF0, 0xF8, 0xFF } },
+    { "AntiqueWhite",         { 0xFA, 0xEB, 0xD7 } },
+    { "Aqua",                 { 0x00, 0xFF, 0xFF } },
+    { "Aquamarine",           { 0x7F, 0xFF, 0xD4 } },
+    { "Azure",                { 0xF0, 0xFF, 0xFF } },
+    { "Beige",                { 0xF5, 0xF5, 0xDC } },
+    { "Bisque",               { 0xFF, 0xE4, 0xC4 } },
+    { "Black",                { 0x00, 0x00, 0x00 } },
+    { "BlanchedAlmond",       { 0xFF, 0xEB, 0xCD } },
+    { "Blue",                 { 0x00, 0x00, 0xFF } },
+    { "BlueViolet",           { 0x8A, 0x2B, 0xE2 } },
+    { "Brown",                { 0xA5, 0x2A, 0x2A } },
+    { "BurlyWood",            { 0xDE, 0xB8, 0x87 } },
+    { "CadetBlue",            { 0x5F, 0x9E, 0xA0 } },
+    { "Chartreuse",           { 0x7F, 0xFF, 0x00 } },
+    { "Chocolate",            { 0xD2, 0x69, 0x1E } },
+    { "Coral",                { 0xFF, 0x7F, 0x50 } },
+    { "CornflowerBlue",       { 0x64, 0x95, 0xED } },
+    { "Cornsilk",             { 0xFF, 0xF8, 0xDC } },
+    { "Crimson",              { 0xDC, 0x14, 0x3C } },
+    { "Cyan",                 { 0x00, 0xFF, 0xFF } },
+    { "DarkBlue",             { 0x00, 0x00, 0x8B } },
+    { "DarkCyan",             { 0x00, 0x8B, 0x8B } },
+    { "DarkGoldenRod",        { 0xB8, 0x86, 0x0B } },
+    { "DarkGray",             { 0xA9, 0xA9, 0xA9 } },
+    { "DarkGreen",            { 0x00, 0x64, 0x00 } },
+    { "DarkKhaki",            { 0xBD, 0xB7, 0x6B } },
+    { "DarkMagenta",          { 0x8B, 0x00, 0x8B } },
+    { "DarkOliveGreen",       { 0x55, 0x6B, 0x2F } },
+    { "Darkorange",           { 0xFF, 0x8C, 0x00 } },
+    { "DarkOrchid",           { 0x99, 0x32, 0xCC } },
+    { "DarkRed",              { 0x8B, 0x00, 0x00 } },
+    { "DarkSalmon",           { 0xE9, 0x96, 0x7A } },
+    { "DarkSeaGreen",         { 0x8F, 0xBC, 0x8F } },
+    { "DarkSlateBlue",        { 0x48, 0x3D, 0x8B } },
+    { "DarkSlateGray",        { 0x2F, 0x4F, 0x4F } },
+    { "DarkTurquoise",        { 0x00, 0xCE, 0xD1 } },
+    { "DarkViolet",           { 0x94, 0x00, 0xD3 } },
+    { "DeepPink",             { 0xFF, 0x14, 0x93 } },
+    { "DeepSkyBlue",          { 0x00, 0xBF, 0xFF } },
+    { "DimGray",              { 0x69, 0x69, 0x69 } },
+    { "DodgerBlue",           { 0x1E, 0x90, 0xFF } },
+    { "FireBrick",            { 0xB2, 0x22, 0x22 } },
+    { "FloralWhite",          { 0xFF, 0xFA, 0xF0 } },
+    { "ForestGreen",          { 0x22, 0x8B, 0x22 } },
+    { "Fuchsia",              { 0xFF, 0x00, 0xFF } },
+    { "Gainsboro",            { 0xDC, 0xDC, 0xDC } },
+    { "GhostWhite",           { 0xF8, 0xF8, 0xFF } },
+    { "Gold",                 { 0xFF, 0xD7, 0x00 } },
+    { "GoldenRod",            { 0xDA, 0xA5, 0x20 } },
+    { "Gray",                 { 0x80, 0x80, 0x80 } },
+    { "Green",                { 0x00, 0x80, 0x00 } },
+    { "GreenYellow",          { 0xAD, 0xFF, 0x2F } },
+    { "HoneyDew",             { 0xF0, 0xFF, 0xF0 } },
+    { "HotPink",              { 0xFF, 0x69, 0xB4 } },
+    { "IndianRed",            { 0xCD, 0x5C, 0x5C } },
+    { "Indigo",               { 0x4B, 0x00, 0x82 } },
+    { "Ivory",                { 0xFF, 0xFF, 0xF0 } },
+    { "Khaki",                { 0xF0, 0xE6, 0x8C } },
+    { "Lavender",             { 0xE6, 0xE6, 0xFA } },
+    { "LavenderBlush",        { 0xFF, 0xF0, 0xF5 } },
+    { "LawnGreen",            { 0x7C, 0xFC, 0x00 } },
+    { "LemonChiffon",         { 0xFF, 0xFA, 0xCD } },
+    { "LightBlue",            { 0xAD, 0xD8, 0xE6 } },
+    { "LightCoral",           { 0xF0, 0x80, 0x80 } },
+    { "LightCyan",            { 0xE0, 0xFF, 0xFF } },
+    { "LightGoldenRodYellow", { 0xFA, 0xFA, 0xD2 } },
+    { "LightGrey",            { 0xD3, 0xD3, 0xD3 } },
+    { "LightGreen",           { 0x90, 0xEE, 0x90 } },
+    { "LightPink",            { 0xFF, 0xB6, 0xC1 } },
+    { "LightSalmon",          { 0xFF, 0xA0, 0x7A } },
+    { "LightSeaGreen",        { 0x20, 0xB2, 0xAA } },
+    { "LightSkyBlue",         { 0x87, 0xCE, 0xFA } },
+    { "LightSlateGray",       { 0x77, 0x88, 0x99 } },
+    { "LightSteelBlue",       { 0xB0, 0xC4, 0xDE } },
+    { "LightYellow",          { 0xFF, 0xFF, 0xE0 } },
+    { "Lime",                 { 0x00, 0xFF, 0x00 } },
+    { "LimeGreen",            { 0x32, 0xCD, 0x32 } },
+    { "Linen",                { 0xFA, 0xF0, 0xE6 } },
+    { "Magenta",              { 0xFF, 0x00, 0xFF } },
+    { "Maroon",               { 0x80, 0x00, 0x00 } },
+    { "MediumAquaMarine",     { 0x66, 0xCD, 0xAA } },
+    { "MediumBlue",           { 0x00, 0x00, 0xCD } },
+    { "MediumOrchid",         { 0xBA, 0x55, 0xD3 } },
+    { "MediumPurple",         { 0x93, 0x70, 0xD8 } },
+    { "MediumSeaGreen",       { 0x3C, 0xB3, 0x71 } },
+    { "MediumSlateBlue",      { 0x7B, 0x68, 0xEE } },
+    { "MediumSpringGreen",    { 0x00, 0xFA, 0x9A } },
+    { "MediumTurquoise",      { 0x48, 0xD1, 0xCC } },
+    { "MediumVioletRed",      { 0xC7, 0x15, 0x85 } },
+    { "MidnightBlue",         { 0x19, 0x19, 0x70 } },
+    { "MintCream",            { 0xF5, 0xFF, 0xFA } },
+    { "MistyRose",            { 0xFF, 0xE4, 0xE1 } },
+    { "Moccasin",             { 0xFF, 0xE4, 0xB5 } },
+    { "NavajoWhite",          { 0xFF, 0xDE, 0xAD } },
+    { "Navy",                 { 0x00, 0x00, 0x80 } },
+    { "OldLace",              { 0xFD, 0xF5, 0xE6 } },
+    { "Olive",                { 0x80, 0x80, 0x00 } },
+    { "OliveDrab",            { 0x6B, 0x8E, 0x23 } },
+    { "Orange",               { 0xFF, 0xA5, 0x00 } },
+    { "OrangeRed",            { 0xFF, 0x45, 0x00 } },
+    { "Orchid",               { 0xDA, 0x70, 0xD6 } },
+    { "PaleGoldenRod",        { 0xEE, 0xE8, 0xAA } },
+    { "PaleGreen",            { 0x98, 0xFB, 0x98 } },
+    { "PaleTurquoise",        { 0xAF, 0xEE, 0xEE } },
+    { "PaleVioletRed",        { 0xD8, 0x70, 0x93 } },
+    { "PapayaWhip",           { 0xFF, 0xEF, 0xD5 } },
+    { "PeachPuff",            { 0xFF, 0xDA, 0xB9 } },
+    { "Peru",                 { 0xCD, 0x85, 0x3F } },
+    { "Pink",                 { 0xFF, 0xC0, 0xCB } },
+    { "Plum",                 { 0xDD, 0xA0, 0xDD } },
+    { "PowderBlue",           { 0xB0, 0xE0, 0xE6 } },
+    { "Purple",               { 0x80, 0x00, 0x80 } },
+    { "Red",                  { 0xFF, 0x00, 0x00 } },
+    { "RosyBrown",            { 0xBC, 0x8F, 0x8F } },
+    { "RoyalBlue",            { 0x41, 0x69, 0xE1 } },
+    { "SaddleBrown",          { 0x8B, 0x45, 0x13 } },
+    { "Salmon",               { 0xFA, 0x80, 0x72 } },
+    { "SandyBrown",           { 0xF4, 0xA4, 0x60 } },
+    { "SeaGreen",             { 0x2E, 0x8B, 0x57 } },
+    { "SeaShell",             { 0xFF, 0xF5, 0xEE } },
+    { "Sienna",               { 0xA0, 0x52, 0x2D } },
+    { "Silver",               { 0xC0, 0xC0, 0xC0 } },
+    { "SkyBlue",              { 0x87, 0xCE, 0xEB } },
+    { "SlateBlue",            { 0x6A, 0x5A, 0xCD } },
+    { "SlateGray",            { 0x70, 0x80, 0x90 } },
+    { "Snow",                 { 0xFF, 0xFA, 0xFA } },
+    { "SpringGreen",          { 0x00, 0xFF, 0x7F } },
+    { "SteelBlue",            { 0x46, 0x82, 0xB4 } },
+    { "Tan",                  { 0xD2, 0xB4, 0x8C } },
+    { "Teal",                 { 0x00, 0x80, 0x80 } },
+    { "Thistle",              { 0xD8, 0xBF, 0xD8 } },
+    { "Tomato",               { 0xFF, 0x63, 0x47 } },
+    { "Turquoise",            { 0x40, 0xE0, 0xD0 } },
+    { "Violet",               { 0xEE, 0x82, 0xEE } },
+    { "Wheat",                { 0xF5, 0xDE, 0xB3 } },
+    { "White",                { 0xFF, 0xFF, 0xFF } },
+    { "WhiteSmoke",           { 0xF5, 0xF5, 0xF5 } },
+    { "Yellow",               { 0xFF, 0xFF, 0x00 } },
+    { "YellowGreen",          { 0x9A, 0xCD, 0x32 } },
+};
+
+static int color_table_compare(const void *lhs, const void *rhs)
+{
+    return strcasecmp(lhs, ((const ColorEntry *)rhs)->name);
+}
+
+#define ALPHA_SEP '@'
+
+int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
+                   void *log_ctx)
+{
+    char *tail, color_string2[128];
+    const ColorEntry *entry;
+    int len, hex_offset = 0;
+
+    if (color_string[0] == '#') {
+        hex_offset = 1;
+    } else if (!strncmp(color_string, "0x", 2))
+        hex_offset = 2;
+
+    if (slen < 0)
+        slen = strlen(color_string);
+    av_strlcpy(color_string2, color_string + hex_offset,
+               FFMIN(slen-hex_offset+1, sizeof(color_string2)));
+    if ((tail = strchr(color_string2, ALPHA_SEP)))
+        *tail++ = 0;
+    len = strlen(color_string2);
+    rgba_color[3] = 255;
+
+    if (!strcasecmp(color_string2, "random") || !strcasecmp(color_string2, "bikeshed")) {
+        int rgba = av_get_random_seed();
+        rgba_color[0] = rgba >> 24;
+        rgba_color[1] = rgba >> 16;
+        rgba_color[2] = rgba >> 8;
+        rgba_color[3] = rgba;
+    } else if (hex_offset ||
+               strspn(color_string2, "0123456789ABCDEFabcdef") == len) {
+        char *tail;
+        unsigned int rgba = strtoul(color_string2, &tail, 16);
+
+        if (*tail || (len != 6 && len != 8)) {
+            av_log(log_ctx, AV_LOG_ERROR, "Invalid 0xRRGGBB[AA] color string: '%s'\n", color_string2);
+            return AVERROR(EINVAL);
+        }
+        if (len == 8) {
+            rgba_color[3] = rgba;
+            rgba >>= 8;
+        }
+        rgba_color[0] = rgba >> 16;
+        rgba_color[1] = rgba >> 8;
+        rgba_color[2] = rgba;
+    } else {
+        entry = bsearch(color_string2,
+                        color_table,
+                        FF_ARRAY_ELEMS(color_table),
+                        sizeof(ColorEntry),
+                        color_table_compare);
+        if (!entry) {
+            av_log(log_ctx, AV_LOG_ERROR, "Cannot find color '%s'\n", color_string2);
+            return AVERROR(EINVAL);
+        }
+        memcpy(rgba_color, entry->rgb_color, 3);
+    }
+
+    if (tail) {
+        unsigned long int alpha;
+        const char *alpha_string = tail;
+        if (!strncmp(alpha_string, "0x", 2)) {
+            alpha = strtoul(alpha_string, &tail, 16);
+        } else {
+            alpha = 255 * strtod(alpha_string, &tail);
+        }
+
+        if (tail == alpha_string || *tail || alpha > 255) {
+            av_log(log_ctx, AV_LOG_ERROR, "Invalid alpha value specifier '%s' in '%s'\n",
+                   alpha_string, color_string);
+            return AVERROR(EINVAL);
+        }
+        rgba_color[3] = alpha;
+    }
+
+    return 0;
+}
+
 #ifdef TEST
 
 #undef printf
@@ -183,6 +417,57 @@ int main(void)
         }
     }
 
+    printf("\nTesting av_parse_color()\n");
+    {
+        int i;
+        uint8_t rgba[4];
+        const char *color_names[] = {
+            "bikeshed",
+            "RaNdOm",
+            "foo",
+            "red",
+            "Red ",
+            "RED",
+            "Violet",
+            "Yellow",
+            "Red",
+            "0x000000",
+            "0x0000000",
+            "0xff000000",
+            "0x3e34ff",
+            "0x3e34ffaa",
+            "0xffXXee",
+            "0xfoobar",
+            "0xffffeeeeeeee",
+            "#ff0000",
+            "#ffXX00",
+            "ff0000",
+            "ffXX00",
+            "red@foo",
+            "random@10",
+            "0xff0000@1.0",
+            "red@",
+            "red@0xfff",
+            "red@0xf",
+            "red@2",
+            "red@0.1",
+            "red@-1",
+            "red@0.5",
+            "red@1.0",
+            "red@256",
+            "red@10foo",
+            "red@-1.0",
+            "red@-0.0",
+        };
+
+        av_log_set_level(AV_LOG_DEBUG);
+
+        for (i = 0;  i < FF_ARRAY_ELEMS(color_names); i++) {
+            if (av_parse_color(rgba, color_names[i], -1, NULL) >= 0)
+                printf("%s -> R(%d) G(%d) B(%d) A(%d)\n", color_names[i], rgba[0], rgba[1], rgba[2], rgba[3]);
+        }
+    }
+
     return 0;
 }
 

libavcore/parseutils.h

@@ -50,4 +50,26 @@ int av_parse_video_size(int *width_ptr, int *height_ptr, const char *str);
  */
 int av_parse_video_rate(AVRational *rate, const char *str);
 
+/**
+ * Put the RGBA values that correspond to color_string in rgba_color.
+ *
+ * @param color_string a string specifying a color. It can be the name of
+ * a color (case insensitive match) or a [0x|#]RRGGBB[AA] sequence,
+ * possibly followed by "@" and a string representing the alpha
+ * component.
+ * The alpha component may be a string composed by "0x" followed by an
+ * hexadecimal number or a decimal number between 0.0 and 1.0, which
+ * represents the opacity value (0x00/0.0 means completely transparent,
+ * 0xff/1.0 completely opaque).
+ * If the alpha component is not specified then 0xff is assumed.
+ * The string "random" will result in a random color.
+ * @param slen length of the initial part of color_string containing the
+ * color. It can be set to -1 if color_string is a null terminated string
+ * containing nothing else than the color.
+ * @return >= 0 in case of success, a negative value in case of
+ * failure (for example if color_string cannot be parsed).
+ */
+int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
+                   void *log_ctx);
+
 #endif /* AVCORE_PARSEUTILS_H */

libavfilter/Makefile

@@ -12,7 +12,6 @@ OBJS = allfilters.o                                                     \
        defaults.o                                                       \
        formats.o                                                        \
        graphparser.o                                                    \
-       parseutils.o                                                     \
 
 OBJS-$(CONFIG_ANULL_FILTER)                  += af_anull.o
 

libavfilter/graphparser.c

@@ -26,7 +26,6 @@
 #include "libavutil/avstring.h"
 #include "avfilter.h"
 #include "avfiltergraph.h"
-#include "parseutils.h"
 
 #define WHITESPACES " \n\t"
 

libavfilter/parseutils.c

@@ -1,323 +0,0 @@
-/*
- * copyright (c) 2009 Stefano Sabatini
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * parsing utils
- */
-
-#include <strings.h>
-#include "libavutil/avutil.h"
-#include "libavutil/avstring.h"
-#include "libavutil/random_seed.h"
-#include "parseutils.h"
-
-typedef struct {
-    const char *name;            ///< a string representing the name of the color
-    uint8_t     rgb_color[3];    ///< RGB values for the color
-} ColorEntry;
-
-static ColorEntry color_table[] = {
-    { "AliceBlue",            { 0xF0, 0xF8, 0xFF } },
-    { "AntiqueWhite",         { 0xFA, 0xEB, 0xD7 } },
-    { "Aqua",                 { 0x00, 0xFF, 0xFF } },
-    { "Aquamarine",           { 0x7F, 0xFF, 0xD4 } },
-    { "Azure",                { 0xF0, 0xFF, 0xFF } },
-    { "Beige",                { 0xF5, 0xF5, 0xDC } },
-    { "Bisque",               { 0xFF, 0xE4, 0xC4 } },
-    { "Black",                { 0x00, 0x00, 0x00 } },
-    { "BlanchedAlmond",       { 0xFF, 0xEB, 0xCD } },
-    { "Blue",                 { 0x00, 0x00, 0xFF } },
-    { "BlueViolet",           { 0x8A, 0x2B, 0xE2 } },
-    { "Brown",                { 0xA5, 0x2A, 0x2A } },
-    { "BurlyWood",            { 0xDE, 0xB8, 0x87 } },
-    { "CadetBlue",            { 0x5F, 0x9E, 0xA0 } },
-    { "Chartreuse",           { 0x7F, 0xFF, 0x00 } },
-    { "Chocolate",            { 0xD2, 0x69, 0x1E } },
-    { "Coral",                { 0xFF, 0x7F, 0x50 } },
-    { "CornflowerBlue",       { 0x64, 0x95, 0xED } },
-    { "Cornsilk",             { 0xFF, 0xF8, 0xDC } },
-    { "Crimson",              { 0xDC, 0x14, 0x3C } },
-    { "Cyan",                 { 0x00, 0xFF, 0xFF } },
-    { "DarkBlue",             { 0x00, 0x00, 0x8B } },
-    { "DarkCyan",             { 0x00, 0x8B, 0x8B } },
-    { "DarkGoldenRod",        { 0xB8, 0x86, 0x0B } },
-    { "DarkGray",             { 0xA9, 0xA9, 0xA9 } },
-    { "DarkGreen",            { 0x00, 0x64, 0x00 } },
-    { "DarkKhaki",            { 0xBD, 0xB7, 0x6B } },
-    { "DarkMagenta",          { 0x8B, 0x00, 0x8B } },
-    { "DarkOliveGreen",       { 0x55, 0x6B, 0x2F } },
-    { "Darkorange",           { 0xFF, 0x8C, 0x00 } },
-    { "DarkOrchid",           { 0x99, 0x32, 0xCC } },
-    { "DarkRed",              { 0x8B, 0x00, 0x00 } },
-    { "DarkSalmon",           { 0xE9, 0x96, 0x7A } },
-    { "DarkSeaGreen",         { 0x8F, 0xBC, 0x8F } },
-    { "DarkSlateBlue",        { 0x48, 0x3D, 0x8B } },
-    { "DarkSlateGray",        { 0x2F, 0x4F, 0x4F } },
-    { "DarkTurquoise",        { 0x00, 0xCE, 0xD1 } },
-    { "DarkViolet",           { 0x94, 0x00, 0xD3 } },
-    { "DeepPink",             { 0xFF, 0x14, 0x93 } },
-    { "DeepSkyBlue",          { 0x00, 0xBF, 0xFF } },
-    { "DimGray",              { 0x69, 0x69, 0x69 } },
-    { "DodgerBlue",           { 0x1E, 0x90, 0xFF } },
-    { "FireBrick",            { 0xB2, 0x22, 0x22 } },
-    { "FloralWhite",          { 0xFF, 0xFA, 0xF0 } },
-    { "ForestGreen",          { 0x22, 0x8B, 0x22 } },
-    { "Fuchsia",              { 0xFF, 0x00, 0xFF } },
-    { "Gainsboro",            { 0xDC, 0xDC, 0xDC } },
-    { "GhostWhite",           { 0xF8, 0xF8, 0xFF } },
-    { "Gold",                 { 0xFF, 0xD7, 0x00 } },
-    { "GoldenRod",            { 0xDA, 0xA5, 0x20 } },
-    { "Gray",                 { 0x80, 0x80, 0x80 } },
-    { "Green",                { 0x00, 0x80, 0x00 } },
-    { "GreenYellow",          { 0xAD, 0xFF, 0x2F } },
-    { "HoneyDew",             { 0xF0, 0xFF, 0xF0 } },
-    { "HotPink",              { 0xFF, 0x69, 0xB4 } },
-    { "IndianRed",            { 0xCD, 0x5C, 0x5C } },
-    { "Indigo",               { 0x4B, 0x00, 0x82 } },
-    { "Ivory",                { 0xFF, 0xFF, 0xF0 } },
-    { "Khaki",                { 0xF0, 0xE6, 0x8C } },
-    { "Lavender",             { 0xE6, 0xE6, 0xFA } },
-    { "LavenderBlush",        { 0xFF, 0xF0, 0xF5 } },
-    { "LawnGreen",            { 0x7C, 0xFC, 0x00 } },
-    { "LemonChiffon",         { 0xFF, 0xFA, 0xCD } },
-    { "LightBlue",            { 0xAD, 0xD8, 0xE6 } },
-    { "LightCoral",           { 0xF0, 0x80, 0x80 } },
-    { "LightCyan",            { 0xE0, 0xFF, 0xFF } },
-    { "LightGoldenRodYellow", { 0xFA, 0xFA, 0xD2 } },
-    { "LightGrey",            { 0xD3, 0xD3, 0xD3 } },
-    { "LightGreen",           { 0x90, 0xEE, 0x90 } },
-    { "LightPink",            { 0xFF, 0xB6, 0xC1 } },
-    { "LightSalmon",          { 0xFF, 0xA0, 0x7A } },
-    { "LightSeaGreen",        { 0x20, 0xB2, 0xAA } },
-    { "LightSkyBlue",         { 0x87, 0xCE, 0xFA } },
-    { "LightSlateGray",       { 0x77, 0x88, 0x99 } },
-    { "LightSteelBlue",       { 0xB0, 0xC4, 0xDE } },
-    { "LightYellow",          { 0xFF, 0xFF, 0xE0 } },
-    { "Lime",                 { 0x00, 0xFF, 0x00 } },
-    { "LimeGreen",            { 0x32, 0xCD, 0x32 } },
-    { "Linen",                { 0xFA, 0xF0, 0xE6 } },
-    { "Magenta",              { 0xFF, 0x00, 0xFF } },
-    { "Maroon",               { 0x80, 0x00, 0x00 } },
-    { "MediumAquaMarine",     { 0x66, 0xCD, 0xAA } },
-    { "MediumBlue",           { 0x00, 0x00, 0xCD } },
-    { "MediumOrchid",         { 0xBA, 0x55, 0xD3 } },
-    { "MediumPurple",         { 0x93, 0x70, 0xD8 } },
-    { "MediumSeaGreen",       { 0x3C, 0xB3, 0x71 } },
-    { "MediumSlateBlue",      { 0x7B, 0x68, 0xEE } },
-    { "MediumSpringGreen",    { 0x00, 0xFA, 0x9A } },
-    { "MediumTurquoise",      { 0x48, 0xD1, 0xCC } },
-    { "MediumVioletRed",      { 0xC7, 0x15, 0x85 } },
-    { "MidnightBlue",         { 0x19, 0x19, 0x70 } },
-    { "MintCream",            { 0xF5, 0xFF, 0xFA } },
-    { "MistyRose",            { 0xFF, 0xE4, 0xE1 } },
-    { "Moccasin",             { 0xFF, 0xE4, 0xB5 } },
-    { "NavajoWhite",          { 0xFF, 0xDE, 0xAD } },
-    { "Navy",                 { 0x00, 0x00, 0x80 } },
-    { "OldLace",              { 0xFD, 0xF5, 0xE6 } },
-    { "Olive",                { 0x80, 0x80, 0x00 } },
-    { "OliveDrab",            { 0x6B, 0x8E, 0x23 } },
-    { "Orange",               { 0xFF, 0xA5, 0x00 } },
-    { "OrangeRed",            { 0xFF, 0x45, 0x00 } },
-    { "Orchid",               { 0xDA, 0x70, 0xD6 } },
-    { "PaleGoldenRod",        { 0xEE, 0xE8, 0xAA } },
-    { "PaleGreen",            { 0x98, 0xFB, 0x98 } },
-    { "PaleTurquoise",        { 0xAF, 0xEE, 0xEE } },
-    { "PaleVioletRed",        { 0xD8, 0x70, 0x93 } },
-    { "PapayaWhip",           { 0xFF, 0xEF, 0xD5 } },
-    { "PeachPuff",            { 0xFF, 0xDA, 0xB9 } },
-    { "Peru",                 { 0xCD, 0x85, 0x3F } },
-    { "Pink",                 { 0xFF, 0xC0, 0xCB } },
-    { "Plum",                 { 0xDD, 0xA0, 0xDD } },
-    { "PowderBlue",           { 0xB0, 0xE0, 0xE6 } },
-    { "Purple",               { 0x80, 0x00, 0x80 } },
-    { "Red",                  { 0xFF, 0x00, 0x00 } },
-    { "RosyBrown",            { 0xBC, 0x8F, 0x8F } },
-    { "RoyalBlue",            { 0x41, 0x69, 0xE1 } },
-    { "SaddleBrown",          { 0x8B, 0x45, 0x13 } },
-    { "Salmon",               { 0xFA, 0x80, 0x72 } },
-    { "SandyBrown",           { 0xF4, 0xA4, 0x60 } },
-    { "SeaGreen",             { 0x2E, 0x8B, 0x57 } },
-    { "SeaShell",             { 0xFF, 0xF5, 0xEE } },
-    { "Sienna",               { 0xA0, 0x52, 0x2D } },
-    { "Silver",               { 0xC0, 0xC0, 0xC0 } },
-    { "SkyBlue",              { 0x87, 0xCE, 0xEB } },
-    { "SlateBlue",            { 0x6A, 0x5A, 0xCD } },
-    { "SlateGray",            { 0x70, 0x80, 0x90 } },
-    { "Snow",                 { 0xFF, 0xFA, 0xFA } },
-    { "SpringGreen",          { 0x00, 0xFF, 0x7F } },
-    { "SteelBlue",            { 0x46, 0x82, 0xB4 } },
-    { "Tan",                  { 0xD2, 0xB4, 0x8C } },
-    { "Teal",                 { 0x00, 0x80, 0x80 } },
-    { "Thistle",              { 0xD8, 0xBF, 0xD8 } },
-    { "Tomato",               { 0xFF, 0x63, 0x47 } },
-    { "Turquoise",            { 0x40, 0xE0, 0xD0 } },
-    { "Violet",               { 0xEE, 0x82, 0xEE } },
-    { "Wheat",                { 0xF5, 0xDE, 0xB3 } },
-    { "White",                { 0xFF, 0xFF, 0xFF } },
-    { "WhiteSmoke",           { 0xF5, 0xF5, 0xF5 } },
-    { "Yellow",               { 0xFF, 0xFF, 0x00 } },
-    { "YellowGreen",          { 0x9A, 0xCD, 0x32 } },
-};
-
-static int color_table_compare(const void *lhs, const void *rhs)
-{
-    return strcasecmp(lhs, ((const ColorEntry *)rhs)->name);
-}
-
-#define ALPHA_SEP '@'
-
-int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
-                   void *log_ctx)
-{
-    char *tail, color_string2[128];
-    const ColorEntry *entry;
-    int len, hex_offset = 0;
-
-    if (color_string[0] == '#') {
-        hex_offset = 1;
-    } else if (!strncmp(color_string, "0x", 2))
-        hex_offset = 2;
-
-    if (slen < 0)
-        slen = strlen(color_string);
-    av_strlcpy(color_string2, color_string + hex_offset,
-               FFMIN(slen-hex_offset+1, sizeof(color_string2)));
-    if ((tail = strchr(color_string2, ALPHA_SEP)))
-        *tail++ = 0;
-    len = strlen(color_string2);
-    rgba_color[3] = 255;
-
-    if (!strcasecmp(color_string2, "random") || !strcasecmp(color_string2, "bikeshed")) {
-        int rgba = av_get_random_seed();
-        rgba_color[0] = rgba >> 24;
-        rgba_color[1] = rgba >> 16;
-        rgba_color[2] = rgba >> 8;
-        rgba_color[3] = rgba;
-    } else if (hex_offset ||
-               strspn(color_string2, "0123456789ABCDEFabcdef") == len) {
-        char *tail;
-        unsigned int rgba = strtoul(color_string2, &tail, 16);
-
-        if (*tail || (len != 6 && len != 8)) {
-            av_log(log_ctx, AV_LOG_ERROR, "Invalid 0xRRGGBB[AA] color string: '%s'\n", color_string2);
-            return AVERROR(EINVAL);
-        }
-        if (len == 8) {
-            rgba_color[3] = rgba;
-            rgba >>= 8;
-        }
-        rgba_color[0] = rgba >> 16;
-        rgba_color[1] = rgba >> 8;
-        rgba_color[2] = rgba;
-    } else {
-        entry = bsearch(color_string2,
-                        color_table,
-                        FF_ARRAY_ELEMS(color_table),
-                        sizeof(ColorEntry),
-                        color_table_compare);
-        if (!entry) {
-            av_log(log_ctx, AV_LOG_ERROR, "Cannot find color '%s'\n", color_string2);
-            return AVERROR(EINVAL);
-        }
-        memcpy(rgba_color, entry->rgb_color, 3);
-    }
-
-    if (tail) {
-        unsigned long int alpha;
-        const char *alpha_string = tail;
-        if (!strncmp(alpha_string, "0x", 2)) {
-            alpha = strtoul(alpha_string, &tail, 16);
-        } else {
-            alpha = 255 * strtod(alpha_string, &tail);
-        }
-
-        if (tail == alpha_string || *tail || alpha > 255) {
-            av_log(log_ctx, AV_LOG_ERROR, "Invalid alpha value specifier '%s' in '%s'\n",
-                   alpha_string, color_string);
-            return AVERROR(EINVAL);
-        }
-        rgba_color[3] = alpha;
-    }
-
-    return 0;
-}
-
-#ifdef TEST
-
-#undef printf
-
-int main(void)
-{
-    int i;
-
-    printf("\nTesting av_parse_color()\n");
-    {
-        uint8_t rgba[4];
-        const char *color_names[] = {
-            "bikeshed",
-            "RaNdOm",
-            "foo",
-            "red",
-            "Red ",
-            "RED",
-            "Violet",
-            "Yellow",
-            "Red",
-            "0x000000",
-            "0x0000000",
-            "0xff000000",
-            "0x3e34ff",
-            "0x3e34ffaa",
-            "0xffXXee",
-            "0xfoobar",
-            "0xffffeeeeeeee",
-            "#ff0000",
-            "#ffXX00",
-            "ff0000",
-            "ffXX00",
-            "red@foo",
-            "random@10",
-            "0xff0000@1.0",
-            "red@",
-            "red@0xfff",
-            "red@0xf",
-            "red@2",
-            "red@0.1",
-            "red@-1",
-            "red@0.5",
-            "red@1.0",
-            "red@256",
-            "red@10foo",
-            "red@-1.0",
-            "red@-0.0",
-        };
-
-        av_log_set_level(AV_LOG_DEBUG);
-
-        for (i = 0;  i < FF_ARRAY_ELEMS(color_names); i++) {
-            if (av_parse_color(rgba, color_names[i], -1, NULL) >= 0)
-                printf("%s -> R(%d) G(%d) B(%d) A(%d)\n", color_names[i], rgba[0], rgba[1], rgba[2], rgba[3]);
-        }
-    }
-
-    return 0;
-}
-
-#endif

libavfilter/parseutils.h

@@ -1,52 +0,0 @@
-/*
- * copyright (c) 2009 Stefano Sabatini
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * FFmpeg 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-/**
- * @file
- * parsing utils
- */
-
-#ifndef AVFILTER_PARSEUTILS_H
-#define AVFILTER_PARSEUTILS_H
-
-#include "libavutil/opt.h"
-
-/**
- * Put the RGBA values that correspond to color_string in rgba_color.
- *
- * @param color_string a string specifying a color. It can be the name of
- * a color (case insensitive match) or a [0x|#]RRGGBB[AA] sequence,
- * possibly followed by "@" and a string representing the alpha
- * component.
- * The alpha component may be a string composed by "0x" followed by an
- * hexadecimal number or a decimal number between 0.0 and 1.0, which
- * represents the opacity value (0x00/0.0 means completely transparent,
- * 0xff/1.0 completely opaque).
- * If the alpha component is not specified then 0xff is assumed.
- * The string "random" will result in a random color.
- * @param slen length of the initial part of color_string containing the
- * color. It can be set to -1 if color_string is a null terminated string
- * containing nothing else than the color.
- * @return >= 0 in case of success, a negative value in case of
- * failure (for example if color_string cannot be parsed).
- */
-int av_parse_color(uint8_t *rgba_color, const char *color_string, int slen,
-                   void *log_ctx);
-
-#endif  /* AVFILTER_PARSEUTILS_H */

libavfilter/vf_drawbox.c

@@ -26,8 +26,8 @@
 
 #include "libavutil/colorspace.h"
 #include "libavutil/pixdesc.h"
+#include "libavcore/parseutils.h"
 #include "avfilter.h"
-#include "parseutils.h"
 
 enum { Y, U, V, A };
 

libavfilter/vf_frei0r.c

@@ -27,8 +27,8 @@
 #include <dlfcn.h>
 #include <frei0r.h>
 #include "libavutil/avstring.h"
+#include "libavcore/parseutils.h"
 #include "avfilter.h"
-#include "parseutils.h"
 
 typedef f0r_instance_t (*f0r_construct_f)(unsigned int width, unsigned int height);
 typedef void (*f0r_destruct_f)(f0r_instance_t instance);