Add Trimmer class; not linked in.

2 files changed, 52 insertions, 0 deletions

diff --git a/test/metadata.ref b/test/metadata.ref
index 16e3837c8..b7a031883 100644
--- a/test/metadata.ref
+++ b/test/metadata.ref
@@ -14,6 +14,7 @@ filter unsharp
 scaler bicubic
 trim_start 42
 trim_end 99
+trim_type cpl
 dcp_ab 1
 use_content_audio 1
 audio_gain 0
diff --git a/test/test.cc b/test/test.cc
index 6fad0986b..ac7ab85fe 100644
--- a/test/test.cc
+++ b/test/test.cc
@@ -40,6 +40,7 @@
 #include "scaler.h"
 #include "ffmpeg_decoder.h"
 #include "sndfile_decoder.h"
+#include "trimmer.h"
 #define BOOST_TEST_DYN_LINK
 #define BOOST_TEST_MODULE dvdomatic_test
 #include <boost/test/unit_test.hpp>
@@ -123,6 +124,55 @@ BOOST_AUTO_TEST_CASE (make_black_test)
 	}
 }
 
+shared_ptr<AudioBuffers> trimmer_test_last;
+
+void
+trimmer_test_helper (shared_ptr<AudioBuffers> audio)
+{
+	trimmer_test_last = audio;
+}
+
+/** Test the audio handling of the Trimmer */
+BOOST_AUTO_TEST_CASE (trimmer_test)
+{
+	Trimmer trimmer (shared_ptr<Log> (), 25, 75, 200, 48000, 25, 25);
+
+	trimmer.Audio.connect (bind (&trimmer_test_helper, _1));
+
+	/* 21 video frames-worth of audio frames; should be completely stripped */
+	trimmer_test_last.reset ();
+	shared_ptr<AudioBuffers> audio (new AudioBuffers (6, 21 * 1920));
+	trimmer.process_audio (audio);
+	BOOST_CHECK (trimmer_test_last == 0);
+
+	/* 42 more video frames-worth, 4 should be stripped from the start */
+	audio.reset (new AudioBuffers (6, 42 * 1920));
+	trimmer.process_audio (audio);
+	BOOST_CHECK (trimmer_test_last);
+	BOOST_CHECK_EQUAL (trimmer_test_last->frames(), 38 * 1920);
+
+	/* 42 more video frames-worth, should be kept as-is */
+	trimmer_test_last.reset ();
+	audio.reset (new AudioBuffers (6, 42 * 1920));
+	trimmer.process_audio (audio);
+	BOOST_CHECK (trimmer_test_last);
+	BOOST_CHECK_EQUAL (trimmer_test_last->frames(), 42 * 1920);
+
+	/* 25 more video frames-worth, 5 should be trimmed from the end */
+	trimmer_test_last.reset ();
+	audio.reset (new AudioBuffers (6, 25 * 1920));
+	trimmer.process_audio (audio);
+	BOOST_CHECK (trimmer_test_last);
+	BOOST_CHECK_EQUAL (trimmer_test_last->frames(), 20 * 1920);
+
+	/* Now some more; all should be trimmed */
+	trimmer_test_last.reset ();
+	audio.reset (new AudioBuffers (6, 100 * 1920));
+	trimmer.process_audio (audio);
+	BOOST_CHECK (trimmer_test_last == 0);
+}
+
+
 BOOST_AUTO_TEST_CASE (film_metadata_test)
 {
 	setup_test_config ();
@@ -863,3 +913,4 @@ BOOST_AUTO_TEST_CASE (aligned_image_test)
 	delete t;
 	delete u;
 }
+