5 files changed, 27 insertions, 4 deletions
diff --git a/src/lib/ffmpeg_decoder.cc b/src/lib/ffmpeg_decoder.cc
index cad247e5a..c2143b949 100644
--- a/src/lib/ffmpeg_decoder.cc
+++ b/src/lib/ffmpeg_decoder.cc
@@ -61,6 +61,8 @@ using boost::optional;
 using boost::dynamic_pointer_cast;
 using libdcp::Size;
 
+boost::mutex FFmpegDecoder::_mutex;
+
 FFmpegDecoder::FFmpegDecoder (shared_ptr<Film> f, DecodeOptions o)
 	: Decoder (f, o)
 	, VideoDecoder (f, o)
@@ -83,6 +85,8 @@ FFmpegDecoder::FFmpegDecoder (shared_ptr<Film> f, DecodeOptions o)
 
 FFmpegDecoder::~FFmpegDecoder ()
 {
+	boost::mutex::scoped_lock lm (_mutex);
+	
 	if (_audio_codec_context) {
 		avcodec_close (_audio_codec_context);
 	}
@@ -157,6 +161,8 @@ FFmpegDecoder::setup_general ()
 void
 FFmpegDecoder::setup_video ()
 {
+	boost::mutex::scoped_lock lm (_mutex);
+	
 	_video_codec_context = _format_context->streams[_video_stream]->codec;
 	_video_codec = avcodec_find_decoder (_video_codec_context->codec_id);
 
@@ -172,6 +178,8 @@ FFmpegDecoder::setup_video ()
 void
 FFmpegDecoder::setup_audio ()
 {
+	boost::mutex::scoped_lock lm (_mutex);
+	
 	if (!_audio_stream) {
 		return;
 	}
@@ -194,6 +202,8 @@ FFmpegDecoder::setup_audio ()
 void
 FFmpegDecoder::setup_subtitle ()
 {
+	boost::mutex::scoped_lock lm (_mutex);
+	
 	if (!_subtitle_stream || _subtitle_stream->id() >= int (_format_context->nb_streams)) {
 		return;
 	}
diff --git a/src/lib/ffmpeg_decoder.h b/src/lib/ffmpeg_decoder.h
index 0c89b973d..198f4294e 100644
--- a/src/lib/ffmpeg_decoder.h
+++ b/src/lib/ffmpeg_decoder.h
@@ -107,6 +107,9 @@ public:
 
 private:
 
+	/* No copy construction */
+	FFmpegDecoder (FFmpegDecoder const &);
+
 	bool pass ();
 	bool do_seek (double p, bool, bool);
 	PixelFormat pixel_format () const;
@@ -145,4 +148,6 @@ private:
 
 	std::list<boost::shared_ptr<FilterGraph> > _filter_graphs;
 	boost::mutex _filter_graphs_mutex;
+
+	static boost::mutex _mutex;
 };
diff --git a/src/lib/film.cc b/src/lib/film.cc
index 3d9b3eeb4..827c62082 100644
--- a/src/lib/film.cc
+++ b/src/lib/film.cc
@@ -943,6 +943,9 @@ Film::set_content (string c)
 		_content = c;
 	}
 
+	/* Do this before we start using FFmpeg ourselves */
+	run_ffprobe (c, file ("ffprobe.log"), _log);
+	
 	/* Reset streams here in case the new content doesn't have one or the other */
 	_content_audio_stream = shared_ptr<AudioStream> ();
 	_subtitle_stream = shared_ptr<SubtitleStream> ();
@@ -998,8 +1001,6 @@ Film::set_content (string c)
 	if (content_type() == STILL) {
 		set_use_content_audio (false);
 	}
-
-	run_ffprobe (c, file ("ffprobe.log"), _log);
 }
 
 void
diff --git a/src/lib/job.cc b/src/lib/job.cc
index 9a5812fa7..8bb43a91f 100644
--- a/src/lib/job.cc
+++ b/src/lib/job.cc
@@ -27,6 +27,7 @@
 #include "job.h"
 #include "util.h"
 #include "cross.h"
+#include "ui_signaller.h"
 
 #include "i18n.h"
 
@@ -172,8 +173,11 @@ Job::set_state (State s)
 	boost::mutex::scoped_lock lm (_state_mutex);
 	_state = s;
 
-	if (_state == FINISHED_OK || _state == FINISHED_ERROR) {
+	if (_state == FINISHED_OK || _state == FINISHED_ERROR || _state == FINISHED_CANCELLED) {
 		_ran_for = elapsed_time ();
+		if (ui_signaller) {
+			ui_signaller->emit (boost::bind (boost::ref (Finished)));
+		}
 	}
 }
 
diff --git a/src/lib/ui_signaller.h b/src/lib/ui_signaller.h
index 221bcbe95..0d19660bf 100644
--- a/src/lib/ui_signaller.h
+++ b/src/lib/ui_signaller.h
@@ -60,7 +60,10 @@ public:
 	}
 
 	/** This should wake the UI and make it call ui_idle() */
-	virtual void wake_ui () = 0;
+	virtual void wake_ui () {
+		/* This is only a sensible implementation when there is no GUI... */
+		ui_idle ();
+	}
 
 private:
 	/** A io_service which is used as the conduit for messages */