Merge branch 'master' of ssh://git.carlh.net/home/carl/git/dcpomatic

17 files changed, 175 insertions, 62 deletions

diff --git a/src/lib/dcpomatic_time.h b/src/lib/dcpomatic_time.h
index 792eb2c97..7d755a46c 100644
--- a/src/lib/dcpomatic_time.h
+++ b/src/lib/dcpomatic_time.h
@@ -116,7 +116,7 @@ public:
 	 *  at some sampling rate.
 	 *  @param r Sampling rate.
 	 */
-	Time<S, O> round_up (float r) {
+	Time<S, O> round_up (float r) const {
 		Type const n = llrintf (HZ / r);
 		Type const a = _t + n - 1;
 		return Time<S, O> (a - (a % n));
diff --git a/src/lib/exceptions.h b/src/lib/exceptions.h
index 7240611ee..6939f81a3 100644
--- a/src/lib/exceptions.h
+++ b/src/lib/exceptions.h
@@ -263,4 +263,12 @@ public:
 	ProgrammingError (std::string file, int line);
 };
 
+class TextEncodingError : public StringError
+{
+public:
+	TextEncodingError (std::string s)
+		: StringError (s)
+	{}
+};
+
 #endif
diff --git a/src/lib/ffmpeg.cc b/src/lib/ffmpeg.cc
index 8fa03fdff..29dee2c86 100644
--- a/src/lib/ffmpeg.cc
+++ b/src/lib/ffmpeg.cc
@@ -25,6 +25,7 @@
 #include "raw_convert.h"
 #include "log.h"
 #include "ffmpeg_subtitle_stream.h"
+#include "ffmpeg_audio_stream.h"
 #include "compose.hpp"
 extern "C" {
 #include <libavcodec/avcodec.h>
@@ -32,6 +33,7 @@ extern "C" {
 #include <libswscale/swscale.h>
 }
 #include <boost/algorithm/string.hpp>
+#include <boost/foreach.hpp>
 #include <iostream>
 
 #include "i18n.h"
@@ -39,7 +41,9 @@ extern "C" {
 using std::string;
 using std::cout;
 using std::cerr;
+using std::vector;
 using boost::shared_ptr;
+using boost::optional;
 
 boost::mutex FFmpeg::_mutex;
 boost::weak_ptr<Log> FFmpeg::_ffmpeg_log;
@@ -263,3 +267,56 @@ FFmpeg::subtitle_period (AVSubtitle const & sub)
 		packet_time + ContentTime::from_seconds (sub.end_display_time / 1e3)
 		);
 }
+
+/** Compute the pts offset to use given a set of audio streams and some video details.
+ *  Sometimes these parameters will have just been determined by an Examiner, sometimes
+ *  they will have been retrieved from a piece of Content, hence the need for this method
+ *  in FFmpeg.
+ */
+ContentTime
+FFmpeg::pts_offset (vector<shared_ptr<FFmpegAudioStream> > audio_streams, optional<ContentTime> first_video, double video_frame_rate) const
+{
+	/* Audio and video frame PTS values may not start with 0.  We want
+	   to fiddle them so that:
+
+	   1.  One of them starts at time 0.
+	   2.  The first video PTS value ends up on a frame boundary.
+
+	   Then we remove big initial gaps in PTS and we allow our
+	   insertion of black frames to work.
+
+	   We will do:
+	     audio_pts_to_use = audio_pts_from_ffmpeg + pts_offset;
+	     video_pts_to_use = video_pts_from_ffmpeg + pts_offset;
+	*/
+
+	/* First, make one of them start at 0 */
+
+	ContentTime po = ContentTime::min ();
+
+	if (first_video) {
+		po = - first_video.get ();
+	}
+
+	BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, audio_streams) {
+		if (i->first_audio) {
+			po = max (po, - i->first_audio.get ());
+		}
+	}
+
+	/* If the offset is positive we would be pushing things from a -ve PTS to be played.
+	   I don't think we ever want to do that, as it seems things at -ve PTS are not meant
+	   to be seen (use for alignment bars etc.); see mantis #418.
+	*/
+	if (po > ContentTime ()) {
+		po = ContentTime ();
+	}
+
+	/* Now adjust so that the video pts starts on a frame */
+	if (first_video) {
+		ContentTime const fvc = first_video.get() + po;
+		po += fvc.round_up (video_frame_rate) - fvc;
+	}
+
+	return po;
+}
diff --git a/src/lib/ffmpeg.h b/src/lib/ffmpeg.h
index 961f5cbb1..b3bc13e5c 100644
--- a/src/lib/ffmpeg.h
+++ b/src/lib/ffmpeg.h
@@ -33,6 +33,7 @@ struct AVFrame;
 struct AVIOContext;
 
 class FFmpegContent;
+class FFmpegAudioStream;
 class Log;
 
 class FFmpeg
@@ -51,6 +52,10 @@ public:
 protected:
 	AVCodecContext* video_codec_context () const;
 	AVCodecContext* subtitle_codec_context () const;
+	ContentTime pts_offset (
+		std::vector<boost::shared_ptr<FFmpegAudioStream> > audio_streams, boost::optional<ContentTime> first_video, double video_frame_rate
+		) const;
+
 	static FFmpegSubtitlePeriod subtitle_period (AVSubtitle const &);
 
 	boost::shared_ptr<const FFmpegContent> _ffmpeg_content;
diff --git a/src/lib/ffmpeg_decoder.cc b/src/lib/ffmpeg_decoder.cc
index d343ec317..475418d3d 100644
--- a/src/lib/ffmpeg_decoder.cc
+++ b/src/lib/ffmpeg_decoder.cc
@@ -67,51 +67,9 @@ FFmpegDecoder::FFmpegDecoder (shared_ptr<const FFmpegContent> c, shared_ptr<Log>
 	, SubtitleDecoder (c)
 	, FFmpeg (c)
 	, _log (log)
+	, _pts_offset (pts_offset (c->ffmpeg_audio_streams(), c->first_video(), c->video_frame_rate()))
 {
-	/* Audio and video frame PTS values may not start with 0.  We want
-	   to fiddle them so that:
 
-	   1.  One of them starts at time 0.
-	   2.  The first video PTS value ends up on a frame boundary.
-
-	   Then we remove big initial gaps in PTS and we allow our
-	   insertion of black frames to work.
-
-	   We will do:
-	     audio_pts_to_use = audio_pts_from_ffmpeg + pts_offset;
-	     video_pts_to_use = video_pts_from_ffmpeg + pts_offset;
-	*/
-
-	/* First, make one of them start at 0 */
-
-	vector<shared_ptr<FFmpegAudioStream> > streams = c->ffmpeg_audio_streams ();
-
-	_pts_offset = ContentTime::min ();
-
-	if (c->first_video ()) {
-		_pts_offset = - c->first_video().get ();
-	}
-
-	BOOST_FOREACH (shared_ptr<FFmpegAudioStream> i, streams) {
-		if (i->first_audio) {
-			_pts_offset = max (_pts_offset, - i->first_audio.get ());
-		}
-	}
-
-	/* If _pts_offset is positive we would be pushing things from a -ve PTS to be played.
-	   I don't think we ever want to do that, as it seems things at -ve PTS are not meant
-	   to be seen (use for alignment bars etc.); see mantis #418.
-	*/
-	if (_pts_offset > ContentTime ()) {
-		_pts_offset = ContentTime ();
-	}
-
-	/* Now adjust so that the video pts starts on a frame */
-	if (c->first_video ()) {
-		ContentTime first_video = c->first_video().get() + _pts_offset;
-		ContentTime const old_first_video = first_video;
-		_pts_offset += first_video.round_up (c->video_frame_rate ()) - old_first_video;
-	}
 }
 
 void
@@ -457,7 +415,7 @@ FFmpegDecoder::decode_subtitle_packet ()
 		period.to = sub_period.to.get() + _pts_offset;
 	} else {
 		/* We have to look up the `to' time in the stream's records */
-		period.to = ffmpeg_content()->subtitle_stream()->find_subtitle_to (sub_period.from);
+		period.to = ffmpeg_content()->subtitle_stream()->find_subtitle_to (period.from);
 	}
 
 	AVSubtitleRect const * rect = sub.rects[0];
diff --git a/src/lib/ffmpeg_examiner.cc b/src/lib/ffmpeg_examiner.cc
index 576782d0b..40fe0d28e 100644
--- a/src/lib/ffmpeg_examiner.cc
+++ b/src/lib/ffmpeg_examiner.cc
@@ -30,6 +30,7 @@ extern "C" {
 #include "ffmpeg_subtitle_stream.h"
 #include "util.h"
 #include "safe_stringstream.h"
+#include <boost/foreach.hpp>
 #include <iostream>
 
 #include "i18n.h"
@@ -134,6 +135,27 @@ FFmpegExaminer::FFmpegExaminer (shared_ptr<const FFmpegContent> c, shared_ptr<Jo
 			break;
 		}
 	}
+
+	for (LastSubtitleMap::const_iterator i = _last_subtitle_start.begin(); i != _last_subtitle_start.end(); ++i) {
+		if (i->second) {
+			i->first->add_subtitle (
+				ContentTimePeriod (
+					i->second.get (),
+					ContentTime::from_frames (video_length(), video_frame_rate().get_value_or (24))
+					)
+				);
+		}
+	}
+
+	/* We just added subtitles to our streams without taking the PTS offset into account;
+	   this is because we might not know the PTS offset when the first subtitle is seen.
+	   Now we know the PTS offset so we can apply it to those subtitles.
+	*/
+	if (video_frame_rate()) {
+		BOOST_FOREACH (shared_ptr<FFmpegSubtitleStream> i, _subtitle_streams) {
+			i->add_offset (pts_offset (_audio_streams, _first_video, video_frame_rate().get()));
+		}
+	}
 }
 
 void
@@ -176,14 +198,23 @@ FFmpegExaminer::subtitle_packet (AVCodecContext* context, shared_ptr<FFmpegSubti
 	AVSubtitle sub;
 	if (avcodec_decode_subtitle2 (context, &sub, &frame_finished, &_packet) >= 0 && frame_finished) {
 		FFmpegSubtitlePeriod const period = subtitle_period (sub);
-		if (sub.num_rects <= 0 && _last_subtitle_start) {
-			stream->add_subtitle (ContentTimePeriod (_last_subtitle_start.get (), period.from));
-			_last_subtitle_start = optional<ContentTime> ();
+		LastSubtitleMap::iterator last = _last_subtitle_start.find (stream);
+		if (last != _last_subtitle_start.end() && last->second) {
+			/* We have seen the start of a subtitle but not yet the end.  Whatever this is
+			   finishes the previous subtitle, so add it */
+			stream->add_subtitle (ContentTimePeriod (last->second.get (), period.from));
+			if (sub.num_rects == 0) {
+				/* This is a `proper' end-of-subtitle */
+				_last_subtitle_start[stream] = optional<ContentTime> ();
+			} else {
+				/* This is just another subtitle, so we start again */
+				_last_subtitle_start[stream] = period.from;
+			}
 		} else if (sub.num_rects == 1) {
 			if (period.to) {
 				stream->add_subtitle (ContentTimePeriod (period.from, period.to.get ()));
 			} else {
-				_last_subtitle_start = period.from;
+				_last_subtitle_start[stream] = period.from;
 			}
 		}
 		avsubtitle_free (&sub);
diff --git a/src/lib/ffmpeg_examiner.h b/src/lib/ffmpeg_examiner.h
index 6fd3220d4..27bff08b4 100644
--- a/src/lib/ffmpeg_examiner.h
+++ b/src/lib/ffmpeg_examiner.h
@@ -85,5 +85,6 @@ private:
 	Frame _video_length;
 	bool _need_video_length;
 
-	boost::optional<ContentTime> _last_subtitle_start;
+	typedef std::map<boost::shared_ptr<FFmpegSubtitleStream>, boost::optional<ContentTime> > LastSubtitleMap;
+	LastSubtitleMap _last_subtitle_start;
 };
diff --git a/src/lib/ffmpeg_subtitle_stream.cc b/src/lib/ffmpeg_subtitle_stream.cc
index 27099b0f3..e12075581 100644
--- a/src/lib/ffmpeg_subtitle_stream.cc
+++ b/src/lib/ffmpeg_subtitle_stream.cc
@@ -86,3 +86,14 @@ FFmpegSubtitleStream::find_subtitle_to (ContentTime from) const
 	DCPOMATIC_ASSERT (i != _subtitles.end ());
 	return i->second;
 }
+
+/** Add some offset to all the times in the stream */
+void
+FFmpegSubtitleStream::add_offset (ContentTime offset)
+{
+	map<ContentTime, ContentTime> fixed;
+	for (map<ContentTime, ContentTime>::iterator i = _subtitles.begin(); i != _subtitles.end(); ++i) {
+		fixed[i->first + offset] = i->second + offset;
+	}
+	_subtitles = fixed;
+}
diff --git a/src/lib/ffmpeg_subtitle_stream.h b/src/lib/ffmpeg_subtitle_stream.h
index a39b10ffd..0809b359a 100644
--- a/src/lib/ffmpeg_subtitle_stream.h
+++ b/src/lib/ffmpeg_subtitle_stream.h
@@ -34,8 +34,8 @@ public:
 	void add_subtitle (ContentTimePeriod period);
 	std::list<ContentTimePeriod> subtitles_during (ContentTimePeriod period, bool starting) const;
 	ContentTime find_subtitle_to (ContentTime from) const;
+	void add_offset (ContentTime offset);
 
 private:
 	std::map<ContentTime, ContentTime> _subtitles;
 };
-
diff --git a/src/lib/job.cc b/src/lib/job.cc
index c228defc5..7aaac748c 100644
--- a/src/lib/job.cc
+++ b/src/lib/job.cc
@@ -59,6 +59,7 @@ Job::~Job ()
 {
 	if (_thread) {
 		_thread->interrupt ();
+		DCPOMATIC_ASSERT (_thread->joinable ());
 		_thread->join ();
 	}
 
@@ -416,7 +417,10 @@ Job::cancel ()
 	}
 
 	_thread->interrupt ();
+	DCPOMATIC_ASSERT (_thread->joinable ());
 	_thread->join ();
+	delete _thread;
+	_thread = 0;
 }
 
 void
@@ -447,4 +451,3 @@ Job::when_finished (boost::signals2::connection& connection, function<void()> fi
 		connection = Finished.connect (finished);
 	}
 }
-
diff --git a/src/lib/job_manager.cc b/src/lib/job_manager.cc
index 545fd956c..86e010c10 100644
--- a/src/lib/job_manager.cc
+++ b/src/lib/job_manager.cc
@@ -62,6 +62,7 @@ JobManager::~JobManager ()
 	}
 
 	if (_scheduler) {
+		DCPOMATIC_ASSERT (_scheduler->joinable ());
 		_scheduler->join ();
 	}
 
diff --git a/src/lib/server.cc b/src/lib/server.cc
index c1db1e6ac..f0b2d9816 100644
--- a/src/lib/server.cc
+++ b/src/lib/server.cc
@@ -39,6 +39,7 @@
 #include <libxml++/libxml++.h>
 #include <boost/algorithm/string.hpp>
 #include <boost/scoped_array.hpp>
+#include <boost/foreach.hpp>
 #include <string>
 #include <vector>
 #include <iostream>
@@ -81,15 +82,19 @@ Server::~Server ()
 		_full_condition.notify_all ();
 	}
 
-	for (vector<boost::thread*>::iterator i = _worker_threads.begin(); i != _worker_threads.end(); ++i) {
-		(*i)->join ();
-		delete *i;
+	BOOST_FOREACH (boost::thread* i, _worker_threads) {
+		DCPOMATIC_ASSERT (i->joinable ());
+		i->join ();
+		delete i;
 	}
 
 	_io_service.stop ();
 
 	_broadcast.io_service.stop ();
-	_broadcast.thread->join ();
+	if (_broadcast.thread) {
+		DCPOMATIC_ASSERT (_broadcast.thread->joinable ());
+		_broadcast.thread->join ();
+	}
 }
 
 /** @param after_read Filled in with gettimeofday() after reading the input from the network.
diff --git a/src/lib/server_finder.cc b/src/lib/server_finder.cc
index 4b532f981..642767e8b 100644
--- a/src/lib/server_finder.cc
+++ b/src/lib/server_finder.cc
@@ -63,11 +63,13 @@ ServerFinder::~ServerFinder ()
 
 	_search_condition.notify_all ();
 	if (_search_thread) {
+		DCPOMATIC_ASSERT (_search_thread->joinable ());
 		_search_thread->join ();
 	}
 
 	_listen_io_service.stop ();
 	if (_listen_thread) {
+		DCPOMATIC_ASSERT (_listen_thread->joinable ());
 		_listen_thread->join ();
 	}
 }
diff --git a/src/lib/subrip.cc b/src/lib/subrip.cc
index f19867952..a707d1f9f 100644
--- a/src/lib/subrip.cc
+++ b/src/lib/subrip.cc
@@ -21,22 +21,51 @@
 #include "cross.h"
 #include "exceptions.h"
 #include "subrip_content.h"
+#include "data.h"
 #include <sub/subrip_reader.h>
 #include <sub/collect.h>
+#include <unicode/ucsdet.h>
+#include <unicode/ucnv.h>
+#include <iostream>
 
 #include "i18n.h"
 
 using std::vector;
+using std::cout;
+using std::string;
 using boost::shared_ptr;
+using boost::scoped_array;
 
 SubRip::SubRip (shared_ptr<const SubRipContent> content)
 {
-	FILE* f = fopen_boost (content->path (0), "r");
-	if (!f) {
-		throw OpenFileError (content->path (0));
-	}
+	Data in (content->path (0));
+
+	UErrorCode status = U_ZERO_ERROR;
+	UCharsetDetector* detector = ucsdet_open (&status);
+	ucsdet_setText (detector, reinterpret_cast<const char *> (in.data().get()), in.size(), &status);
+
+	UCharsetMatch const * match = ucsdet_detect (detector, &status);
+	char const * in_charset = ucsdet_getName (match, &status);
+
+	UConverter* to_utf16 = ucnv_open (in_charset, &status);
+	/* This is a guess; I think we should be able to encode any input in 4 times its input size */
+	scoped_array<uint16_t> utf16 (new uint16_t[in.size() * 2]);
+	int const utf16_len = ucnv_toUChars (
+		to_utf16, reinterpret_cast<UChar*>(utf16.get()), in.size() * 2,
+		reinterpret_cast<const char *> (in.data().get()), in.size(),
+		&status
+		);
+
+	UConverter* to_utf8 = ucnv_open ("UTF-8", &status);
+	/* Another guess */
+	scoped_array<char> utf8 (new char[utf16_len * 2]);
+	ucnv_fromUChars (to_utf8, utf8.get(), utf16_len * 2, reinterpret_cast<UChar*>(utf16.get()), utf16_len, &status);
+
+	ucsdet_close (detector);
+	ucnv_close (to_utf16);
+	ucnv_close (to_utf8);
 
-	sub::SubripReader reader (f);
+	sub::SubripReader reader (utf8.get());
 	_subtitles = sub::collect<vector<sub::Subtitle> > (reader.subtitles ());
 }
 
diff --git a/src/lib/update_checker.cc b/src/lib/update_checker.cc
index 4ee728fde..4c5075e20 100644
--- a/src/lib/update_checker.cc
+++ b/src/lib/update_checker.cc
@@ -86,6 +86,7 @@ UpdateChecker::~UpdateChecker ()
 
 	_condition.notify_all ();
 	if (_thread) {
+		DCPOMATIC_ASSERT (_thread->joinable ());
 		_thread->join ();
 	}
 	delete _thread;
diff --git a/src/lib/writer.cc b/src/lib/writer.cc
index 1318cc20f..bace6602d 100644
--- a/src/lib/writer.cc
+++ b/src/lib/writer.cc
@@ -477,6 +477,7 @@ Writer::terminate_thread (bool can_throw)
 	_full_condition.notify_all ();
 	lock.unlock ();
 
+	DCPOMATIC_ASSERT (_thread->joinable ());
  	_thread->join ();
 	if (can_throw) {
 		rethrow ();
diff --git a/src/lib/wscript b/src/lib/wscript
index a95905578..3daf3ecf4 100644
--- a/src/lib/wscript
+++ b/src/lib/wscript
@@ -143,7 +143,7 @@ def build(bld):
                  AVCODEC AVUTIL AVFORMAT AVFILTER SWSCALE SWRESAMPLE
                  BOOST_FILESYSTEM BOOST_THREAD BOOST_DATETIME BOOST_SIGNALS2 BOOST_REGEX
                  SNDFILE SAMPLERATE OPENJPEG POSTPROC TIFF MAGICK SSH DCP CXML GLIB LZMA XML++
-                 CURL ZIP FONTCONFIG PANGOMM CAIROMM XMLSEC SUB
+                 CURL ZIP FONTCONFIG PANGOMM CAIROMM XMLSEC SUB ICU
                  """
 
     if bld.env.TARGET_OSX: