X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Ftranscode_job.cc;h=55b4ef9b69aeadc4e9aaf87e397d9bd50aa10cd8;hb=96f7dd41a2c8627bc1ea0d24d84142eb04b4ffef;hp=1db37e3708b27748ada7455763a2c753e63e30f6;hpb=948afc5ed3d4e041dec96071e180f8a75bd36f50;p=dcpomatic.git

diff --git a/src/lib/transcode_job.cc b/src/lib/transcode_job.cc
index 1db37e370..55b4ef9b6 100644
--- a/src/lib/transcode_job.cc
+++ b/src/lib/transcode_job.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012-2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2019 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -42,6 +42,7 @@ using std::fixed;
 using std::setprecision;
 using std::cout;
 using boost::shared_ptr;
+using boost::optional;
 using boost::dynamic_pointer_cast;
 
 /** @param film Film to use */
@@ -51,6 +52,14 @@ TranscodeJob::TranscodeJob (shared_ptr<const Film> film)
 
 }
 
+TranscodeJob::~TranscodeJob ()
+{
+	/* We have to stop the job thread here as we're about to start tearing down
+	   the Encoder, which is bad news if the job thread is still feeding it data.
+	*/
+	stop_thread ();
+}
+
 string
 TranscodeJob::name () const
 {
@@ -120,7 +129,8 @@ TranscodeJob::status () const
 
 	char buffer[256];
 	if (finished() || _encoder->finishing()) {
-		strncpy (buffer, Job::status().c_str(), 256);
+		strncpy (buffer, Job::status().c_str(), 255);
+		buffer[255] = '\0';
 	} else {
 		snprintf (
 			buffer, sizeof(buffer), "%s; %" PRId64 "/%" PRId64 " frames",
@@ -129,11 +139,11 @@ TranscodeJob::status () const
 			_film->length().frames_round (_film->video_frame_rate ())
 			);
 
-		float const fps = _encoder->current_rate ();
+		optional<float> const fps = _encoder->current_rate ();
 		if (fps) {
 			char fps_buffer[64];
 			/// TRANSLATORS: fps here is an abbreviation for frames per second
-			snprintf (fps_buffer, sizeof(fps_buffer), _("; %.1f fps"), fps);
+			snprintf (fps_buffer, sizeof(fps_buffer), _("; %.1f fps"), *fps);
 			strncat (buffer, fps_buffer, strlen(buffer) - 1);
 		}
 	}
@@ -155,12 +165,12 @@ TranscodeJob::remaining_time () const
 
 	/* We're encoding so guess based on the current encoding rate */
 
-	float fps = e->current_rate ();
+	optional<float> fps = e->current_rate ();
 
-	if (fps == 0) {
+	if (!fps) {
 		return 0;
 	}
 
 	/* Compute approximate proposed length here, as it's only here that we need it */
-	return (_film->length().frames_round (_film->video_frame_rate ()) - e->frames_done()) / fps;
+	return (_film->length().frames_round(_film->video_frame_rate()) - e->frames_done()) / *fps;
 }