From 991244a0d4be149e8733a8dd70bfd745cab72583 Mon Sep 17 00:00:00 2001
From: Carl Hetherington <cth@carlh.net>
Date: Thu, 25 Jul 2013 20:10:03 +0100
Subject: [PATCH] Very basic ffmpeg audio test.

---
 test/ffmpeg_audio_test.cc | 114 ++++++++++++++++++++++++++++++++++++++
 test/wscript              |   1 +
 2 files changed, 115 insertions(+)
 create mode 100644 test/ffmpeg_audio_test.cc

diff --git a/test/ffmpeg_audio_test.cc b/test/ffmpeg_audio_test.cc
new file mode 100644
index 000000000..19f71e964
--- /dev/null
+++ b/test/ffmpeg_audio_test.cc
@@ -0,0 +1,114 @@
+/*
+    Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <boost/test/unit_test.hpp>
+#include <libdcp/cpl.h>
+#include <libdcp/dcp.h>
+#include <libdcp/sound_asset.h>
+#include <libdcp/sound_frame.h>
+#include <libdcp/reel.h>
+#include "lib/sndfile_content.h"
+#include "lib/film.h"
+#include "lib/dcp_content_type.h"
+#include "lib/ratio.h"
+#include "test.h"
+
+using std::string;
+using boost::lexical_cast;
+using boost::shared_ptr;
+
+BOOST_AUTO_TEST_CASE (ffmpeg_audio_test)
+{
+	shared_ptr<Film> film = new_test_film ("ffmpeg_audio_test");
+	film->set_name ("ffmpeg_audio_test");
+	shared_ptr<FFmpegContent> c (new FFmpegContent (film, "test/data/staircase.mov"));
+	c->set_ratio (Ratio::from_id ("185"));
+	film->examine_and_add_content (c);
+
+	wait_for_jobs ();
+
+	film->set_container (Ratio::from_id ("185"));
+	film->set_dcp_content_type (DCPContentType::from_pretty_name ("Test"));
+	film->make_dcp ();
+	film->write_metadata ();
+
+	wait_for_jobs ();
+
+	boost::filesystem::path path = "build/test";
+	path /= "ffmpeg_audio_test";
+	path /= film->dcp_name ();
+	libdcp::DCP check (path.string ());
+	check.read ();
+
+	shared_ptr<const libdcp::SoundAsset> sound_asset = check.cpls().front()->reels().front()->main_sound ();
+	BOOST_CHECK (sound_asset);
+	BOOST_CHECK (sound_asset->channels () == 6);
+
+	/* Sample index in the DCP */
+	int n = 0;
+	/* DCP sound asset frame */
+	int frame = 0;
+
+	while (n < sound_asset->intrinsic_duration()) {
+		shared_ptr<const libdcp::SoundFrame> sound_frame = sound_asset->get_frame (frame++);
+		uint8_t const * d = sound_frame->data ();
+		
+		for (int i = 0; i < sound_frame->size(); i += (3 * sound_asset->channels())) {
+
+			if (sound_asset->channels() > 0) {
+				/* L should be silent */
+				int const sample = d[i + 0] | (d[i + 1] << 8);
+				BOOST_CHECK_EQUAL (sample, 0);
+			}
+
+			if (sound_asset->channels() > 1) {
+				/* R should be silent */
+				int const sample = d[i + 2] | (d[i + 3] << 8);
+				BOOST_CHECK_EQUAL (sample, 0);
+			}
+			
+			if (sound_asset->channels() > 2) {
+				/* Mono input so it will appear on centre */
+				int const sample = d[i + 7] | (d[i + 8] << 8);
+				BOOST_CHECK_EQUAL (sample, n);
+			}
+
+			if (sound_asset->channels() > 3) {
+				/* Lfe should be silent */
+				int const sample = d[i + 9] | (d[i + 10] << 8);
+				BOOST_CHECK_EQUAL (sample, 0);
+			}
+
+			if (sound_asset->channels() > 4) {
+				/* Ls should be silent */
+				int const sample = d[i + 11] | (d[i + 12] << 8);
+				BOOST_CHECK_EQUAL (sample, 0);
+			}
+
+
+			if (sound_asset->channels() > 5) {
+				/* Rs should be silent */
+				int const sample = d[i + 13] | (d[i + 14] << 8);
+				BOOST_CHECK_EQUAL (sample, 0);
+			}
+
+			++n;
+		}
+	}
+}
diff --git a/test/wscript b/test/wscript
index c59d9f7cf..f7e7180c8 100644
--- a/test/wscript
+++ b/test/wscript
@@ -16,6 +16,7 @@ def build(bld):
     obj.use    = 'libdcpomatic'
     obj.source = """
                  test.cc
+                 ffmpeg_audio_test.cc
                  threed_test.cc
                  play_test.cc
                  frame_rate_test.cc
-- 
2.30.2