From 2e4089247c02f1f1bf43ab880594ce0218dfbc11 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Mon, 24 Jun 2019 12:31:56 +0100
Subject: Add support for \c in SSA.

---
 src/exceptions.h  |  8 ++++++++
 src/ssa_reader.cc | 11 +++++++++++
 2 files changed, 19 insertions(+)

(limited to 'src')

diff --git a/src/exceptions.h b/src/exceptions.h
index 56b58aa..2bb7018 100644
--- a/src/exceptions.h
+++ b/src/exceptions.h
@@ -65,6 +65,14 @@ private:
 	std::list<std::string> _context;
 };
 
+class SSAError : public std::runtime_error
+{
+public:
+	SSAError (std::string message)
+		: std::runtime_error(message)
+	{}
+};
+
 class MXFError : public std::runtime_error
 {
 public:
diff --git a/src/ssa_reader.cc b/src/ssa_reader.cc
index f592b9e..111a4cb 100644
--- a/src/ssa_reader.cc
+++ b/src/ssa_reader.cc
@@ -22,6 +22,7 @@
 #include "sub_assert.h"
 #include "raw_convert.h"
 #include "subtitle.h"
+#include "compose.hpp"
 #include <boost/algorithm/string.hpp>
 #include <boost/bind.hpp>
 #include <boost/foreach.hpp>
@@ -282,6 +283,16 @@ SSAReader::parse_line (RawSubtitle base, string line, int play_res_x, int play_r
 				} else if (boost::starts_with(style, "\\fs")) {
 					SUB_ASSERT (style.length() > 3);
 					current.font_size.set_points (raw_convert<int>(style.substr(3)));
+				} else if (boost::starts_with(style, "\\c")) {
+					/* \c&Hbbggrr& */
+					if (style.length() != 11 || style[2] != '&' || style[3] != 'H' || style[10] != '&') {
+						throw SSAError(String::compose("Badly formatted colour tag %1", style));
+					}
+					int ir, ig, ib;
+					if (sscanf(style.c_str() + 4, "%2x%2x%2x", &ib, &ig, &ir) < 3) {
+						throw SSAError(String::compose("Badly formatted colour tag %1", style));
+					}
+					current.colour = sub::Colour(ir / 255.0, ig / 255.0, ib / 255.0);
 				}
 				style = "";
 			}
-- 
cgit v1.2.3