X-Git-Url: https://git.carlh.net/gitweb/?p=dcpomatic.git;a=blobdiff_plain;f=test%2Ftime_calculation_test.cc;h=4ab5d0942923e55733cabc5045dfc7fcd7fcf949;hp=51d2939de579a6eac883232b7d086509f2a3cac0;hb=6d686ea45f5cd01a0d11f92a903ac77779ad8562;hpb=f24ecc55366073d1c267806914e293602f90e3ce

diff --git a/test/time_calculation_test.cc b/test/time_calculation_test.cc
index 51d2939de..4ab5d0942 100644
--- a/test/time_calculation_test.cc
+++ b/test/time_calculation_test.cc
@@ -1,141 +1,818 @@
 /*
-    Copyright (C) 2015 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2015-2021 Carl Hetherington <cth@carlh.net>
 
-    This program is free software; you can redistribute it and/or modify
+    This file is part of DCP-o-matic.
+
+    DCP-o-matic 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,
+    DCP-o-matic 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.
+    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
 
 */
 
+
+/** @file  test/time_calculation_test.cc
+ *  @brief Test calculation of timings when frame rates change.
+ *  @ingroup feature
+ */
+
+
 #include "lib/film.h"
 #include "lib/ffmpeg_content.h"
+#include "lib/video_content.h"
+#include "lib/player.h"
+#include "lib/audio_content.h"
 #include "test.h"
 #include <boost/test/unit_test.hpp>
 
-using std::string;
+
 using std::list;
-using boost::shared_ptr;
+using std::make_shared;
+using std::string;
+using namespace dcpomatic;
+
+
+static string const xml = "<Content>"
+	"<Type>FFmpeg</Type>"
+	"<BurnSubtitles>0</BurnSubtitles>"
+	"<BitsPerPixel>8</BitsPerPixel>"
+	"<Path>test/data/red_24.mp4</Path>"
+	"<Digest>2760e03c7251480f7f02c01a907792673784335</Digest>"
+	"<Position>0</Position>"
+	"<TrimStart>0</TrimStart>"
+	"<TrimEnd>0</TrimEnd>"
+	"<VideoLength>1353600</VideoLength>"
+	"<VideoWidth>1280</VideoWidth>"
+	"<VideoHeight>720</VideoHeight>"
+	"<VideoFrameRate>25</VideoFrameRate>"
+	"<VideoFrameType>2d</VideoFrameType>"
+	"<LeftCrop>0</LeftCrop>"
+	"<RightCrop>0</RightCrop>"
+	"<TopCrop>0</TopCrop>"
+	"<BottomCrop>0</BottomCrop>"
+	"<Scale>"
+	"<Ratio>178</Ratio>"
+	"</Scale>"
+	"<ColourConversion>"
+	"<InputTransferFunction>"
+	"<Type>ModifiedGamma</Type>"
+	"<Power>2.222222222222222</Power>"
+	"<Threshold>0.081</Threshold>"
+	"<A>0.099</A>"
+	"<B>4.5</B>"
+	"</InputTransferFunction>"
+	"<RedX>0.64</RedX>"
+	"<RedY>0.33</RedY>"
+	"<GreenX>0.3</GreenX>"
+	"<GreenY>0.6</GreenY>"
+	"<BlueX>0.15</BlueX>"
+	"<BlueY>0.06</BlueY>"
+	"<WhiteX>0.3127</WhiteX>"
+	"<WhiteY>0.329</WhiteY>"
+	"<OutputGamma>2.6</OutputGamma>"
+	"</ColourConversion>"
+	"<FadeIn>0</FadeIn>"
+	"<FadeOut>0</FadeOut>"
+	"<AudioGain>0</AudioGain>"
+	"<AudioDelay>0</AudioDelay>"
+	"<UseSubtitles>0</UseSubtitles>"
+	"<SubtitleXOffset>0</SubtitleXOffset>"
+	"<SubtitleYOffset>0</SubtitleYOffset>"
+	"<SubtitleXScale>1</SubtitleXScale>"
+	"<SubtitleYScale>1</SubtitleYScale>"
+	"<SubtitleLanguage></SubtitleLanguage>"
+	"<AudioStream>"
+	"<Selected>1</Selected>"
+	"<Name>und; 2 channels</Name>"
+	"<Id>1</Id>"
+	"<FrameRate>44100</FrameRate>"
+	"<Length>44100</Length>"
+	"<Channels>2</Channels>"
+	"<FirstAudio>0</FirstAudio>"
+	"<Mapping>"
+	"<InputChannels>2</InputChannels>"
+	"<OutputChannels>12</OutputChannels>"
+	"<Gain Input=\"0\" Output=\"0\">1</Gain>"
+	"<Gain Input=\"0\" Output=\"1\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"2\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"3\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"4\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"5\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"6\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"7\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"8\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"9\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"10\">0</Gain>"
+	"<Gain Input=\"0\" Output=\"11\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"0\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"1\">1</Gain>"
+	"<Gain Input=\"1\" Output=\"2\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"3\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"4\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"5\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"6\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"7\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"8\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"9\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"10\">0</Gain>"
+	"<Gain Input=\"1\" Output=\"11\">0</Gain>"
+	"</Mapping>"
+	"</AudioStream>"
+	"<FirstVideo>0</FirstVideo>"
+	"</Content>";
+
 
 BOOST_AUTO_TEST_CASE (ffmpeg_time_calculation_test)
 {
-	shared_ptr<Film> film = new_test_film ("ffmpeg_time_calculation_test");
-
-	string const xml = "<Content>"
-		"<Type>FFmpeg</Type>"
-		"<Path>/home/c.hetherington/DCP/clapperboard.mp4</Path>"
-		"<Digest>2760e03c7251480f7f02c01a907792673784335</Digest>"
-		"<Position>0</Position>"
-		"<TrimStart>0</TrimStart>"
-		"<TrimEnd>0</TrimEnd>"
-		"<VideoLength>1353600</VideoLength>"
-		"<VideoWidth>1280</VideoWidth>"
-		"<VideoHeight>720</VideoHeight>"
-		"<VideoFrameRate>25</VideoFrameRate>"
-		"<VideoFrameType>0</VideoFrameType>"
-		"<LeftCrop>0</LeftCrop>"
-		"<RightCrop>0</RightCrop>"
-		"<TopCrop>0</TopCrop>"
-		"<BottomCrop>0</BottomCrop>"
-		"<Scale>"
-		"<Ratio>178</Ratio>"
-		"</Scale>"
-		"<ColourConversion>"
-		"<InputTransferFunction>"
-		"<Type>ModifiedGamma</Type>"
-		"<Power>2.222222222222222</Power>"
-		"<Threshold>0.081</Threshold>"
-		"<A>0.099</A>"
-		"<B>4.5</B>"
-		"</InputTransferFunction>"
-		"<RedX>0.64</RedX>"
-		"<RedY>0.33</RedY>"
-		"<GreenX>0.3</GreenX>"
-		"<GreenY>0.6</GreenY>"
-		"<BlueX>0.15</BlueX>"
-		"<BlueY>0.06</BlueY>"
-		"<WhiteX>0.3127</WhiteX>"
-		"<WhiteY>0.329</WhiteY>"
-		"<OutputGamma>2.6</OutputGamma>"
-		"</ColourConversion>"
-		"<FadeIn>0</FadeIn>"
-		"<FadeOut>0</FadeOut>"
-		"<AudioGain>0</AudioGain>"
-		"<AudioDelay>0</AudioDelay>"
-		"<UseSubtitles>0</UseSubtitles>"
-		"<SubtitleXOffset>0</SubtitleXOffset>"
-		"<SubtitleYOffset>0</SubtitleYOffset>"
-		"<SubtitleXScale>1</SubtitleXScale>"
-		"<SubtitleYScale>1</SubtitleYScale>"
-		"<SubtitleLanguage></SubtitleLanguage>"
-		"<AudioStream>"
-		"<Selected>1</Selected>"
-		"<Name>und; 2 channels</Name>"
-		"<Id>2</Id>"
-		"<FrameRate>44100</FrameRate>"
-		"<Channels>2</Channels>"
-		"<FirstAudio>0</FirstAudio>"
-		"<Mapping>"
-		"<ContentChannels>2</ContentChannels>"
-		"<Gain Content=\"0\" DCP=\"0\">1</Gain>"
-		"<Gain Content=\"0\" DCP=\"1\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"2\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"3\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"4\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"5\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"6\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"7\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"8\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"9\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"10\">0</Gain>"
-		"<Gain Content=\"0\" DCP=\"11\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"0\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"1\">1</Gain>"
-		"<Gain Content=\"1\" DCP=\"2\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"3\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"4\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"5\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"6\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"7\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"8\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"9\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"10\">0</Gain>"
-		"<Gain Content=\"1\" DCP=\"11\">0</Gain>"
-		"</Mapping>"
-		"</AudioStream>"
-		"<FirstVideo>0</FirstVideo>"
-		"</Content>";
-
-	shared_ptr<cxml::Document> doc (new cxml::Document);
+	auto film = new_test_film ("ffmpeg_time_calculation_test");
+
+	auto doc = make_shared<cxml::Document>();
 	doc->read_string (xml);
 
 	list<string> notes;
-	shared_ptr<FFmpegContent> content (new FFmpegContent (film, doc, film->state_version(), notes));
+	auto content = make_shared<FFmpegContent>(doc, film->state_version(), notes);
 
 	/* 25fps content, 25fps DCP */
 	film->set_video_frame_rate (25);
-	BOOST_CHECK_EQUAL (content->full_length(), DCPTime::from_seconds (content->video_length() / 25.0));
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(content->video->length() / 25.0).get());
 	/* 25fps content, 24fps DCP; length should be increased */
 	film->set_video_frame_rate (24);
-	BOOST_CHECK_EQUAL (content->full_length(), DCPTime::from_seconds (content->video_length() / 24.0));
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(content->video->length() / 24.0).get());
 	/* 25fps content, 30fps DCP; length should be decreased */
 	film->set_video_frame_rate (30);
-	BOOST_CHECK_EQUAL (content->full_length(), DCPTime::from_seconds (content->video_length() / 30.0));
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(content->video->length() / 30.0).get());
 	/* 25fps content, 50fps DCP; length should be the same */
 	film->set_video_frame_rate (50);
-	BOOST_CHECK_EQUAL (content->full_length(), DCPTime::from_seconds (content->video_length() / 25.0));
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(content->video->length() / 25.0).get());
 	/* 25fps content, 60fps DCP; length should be decreased */
 	film->set_video_frame_rate (60);
-	BOOST_CHECK_EQUAL (content->full_length(), DCPTime::from_seconds (content->video_length() * (50.0 / 60) / 25.0));
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(content->video->length() * (50.0 / 60) / 25.0).get());
+
+	/* Make the content audio-only */
+	content->video.reset ();
+
+	/* 24fps content, 24fps DCP */
+	film->set_video_frame_rate (24);
+	content->set_video_frame_rate (24);
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(1).get());
+	/* 25fps content, 25fps DCP */
+	film->set_video_frame_rate (25);
+	content->set_video_frame_rate (25);
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(1).get());
+	/* 25fps content, 24fps DCP; length should be increased */
+	film->set_video_frame_rate (24);
+	BOOST_CHECK_SMALL (labs (content->full_length(film).get() - DCPTime::from_seconds(25.0 / 24).get()), 2L);
+	/* 25fps content, 30fps DCP; length should be decreased */
+	film->set_video_frame_rate (30);
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(25.0 / 30).get());
+	/* 25fps content, 50fps DCP; length should be the same */
+	film->set_video_frame_rate (50);
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(1).get());
+	/* 25fps content, 60fps DCP; length should be decreased */
+	film->set_video_frame_rate (60);
+	BOOST_CHECK_EQUAL (content->full_length(film).get(), DCPTime::from_seconds(50.0 / 60).get());
+
+}
+
+
+/** Test Player::dcp_to_content_video */
+BOOST_AUTO_TEST_CASE (player_time_calculation_test1)
+{
+	auto film = new_test_film ("player_time_calculation_test1");
+
+	auto doc = make_shared<cxml::Document>();
+	doc->read_string (xml);
+
+	list<string> notes;
+	auto content = make_shared<FFmpegContent>(doc, film->state_version(), notes);
+	film->set_sequence (false);
+	film->add_content (content);
+
+	auto player = make_shared<Player>(film, Image::Alignment::COMPACT);
+
+	/* Position 0, no trim, content rate = DCP rate */
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	auto piece = player->_pieces.front();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.5)), 12);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.0)), 72);
+
+	/* Position 3s, no trim, content rate = DCP rate */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.50)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.00)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (4.50)),  36);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (9.75)), 162);
+
+	/* Position 3s, 1.5s trim, content rate = DCP rate */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.50)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.00)),  36);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (4.50)),  72);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (9.75)), 198);
+
+	/* Position 0, no trim, content rate 24, DCP rate 25.
+	   Now, for example, a DCPTime position of 3s means 3s at 25fps.  Since we run the video
+	   fast (at 25fps) in this case, this means 75 frames of content video will be used.
+	*/
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (25);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.6)), 15);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.0)), 75);
+
+	/* Position 3s, no trim, content rate 24, DCP rate 25 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (25);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.60)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.00)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (4.60)),  40);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (9.75)), 168);
+
+	/* Position 3s, 1.6s trim, content rate 24, DCP rate 25.  Here the trim is in ContentTime,
+	   so it's 1.6s at 24fps.  Note that trims are rounded to the nearest video frame, so
+	   some of these results are not quite what you'd perhaps expect.
+	 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.6));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (25);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.60)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.00)),  38);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (4.60)),  78);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (9.75)), 206);
+
+	/* Position 0, no trim, content rate 24, DCP rate 48
+	   Now, for example, a DCPTime position of 3s means 3s at 48fps.  Since we run the video
+	   with repeated frames in this case, 3 * 24 frames of content video will
+	   be used to make 3 * 48 frames of DCP video.  The results should be the same as the
+	   content rate = DCP rate case.
+	*/
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (48);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.5)), 12);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.0)), 72);
+
+	/* Position 3s, no trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (48);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.50)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.00)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (4.50)),  36);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (9.75)), 162);
+
+	/* Position 3s, 1.5s trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (48);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.50)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.00)),  36);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (4.50)),  72);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (9.75)), 198);
+
+	/* Position 0, no trim, content rate 48, DCP rate 24
+	   Now, for example, a DCPTime position of 3s means 3s at 24fps.  Since we run the video
+	   with skipped frames in this case, 3 * 48 frames of content video will
+	   be used to make 3 * 24 frames of DCP video.
+	*/
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (48);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.5)), 24);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.0)), 144);
+
+	/* Position 3s, no trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (48);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.50)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.00)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (4.50)),  72);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (9.75)), 324);
+
+	/* Position 3s, 1.5s trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (48);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (0.50)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (3.00)),  72);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (4.50)), 144);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime::from_seconds (9.75)), 396);
+
+	/* Position 0s, no trim, content rate 29.9978733, DCP rate 30 */
+	content->set_position (film, DCPTime::from_seconds(0));
+	content->set_trim_start (ContentTime::from_seconds (0));
+	content->set_video_frame_rate (29.9978733);
+	film->set_video_frame_rate (30);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime (3200)), 1);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime (6400)), 2);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime (9600)), 3);
+	BOOST_CHECK_EQUAL (player->dcp_to_content_video (piece, DCPTime (12800)), 4);
+
+}
+
+/** Test Player::content_video_to_dcp */
+BOOST_AUTO_TEST_CASE (player_time_calculation_test2)
+{
+	auto film = new_test_film ("player_time_calculation_test2");
+
+	auto doc = make_shared<cxml::Document>();
+	doc->read_string (xml);
+
+	list<string> notes;
+	auto content = make_shared<FFmpegContent>(doc, film->state_version(), notes);
+	film->set_sequence (false);
+	film->add_content (content);
+
+	auto player = make_shared<Player>(film, Image::Alignment::COMPACT);
+
+	/* Position 0, no trim, content rate = DCP rate */
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	auto piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp (piece, 0).get(), 0);
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp (piece, 12).get(), DCPTime::from_seconds(0.5).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp (piece, 72).get(), DCPTime::from_seconds(3.0).get());
+
+	/* Position 3s, no trim, content rate = DCP rate */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), DCPTime::from_seconds(3.00).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 36).get(), DCPTime::from_seconds(4.50).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 162).get(), DCPTime::from_seconds(9.75).get());
+
+	/* Position 3s, 1.5s trim, content rate = DCP rate */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), DCPTime::from_seconds(1.50).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 36).get(), DCPTime::from_seconds(3.00).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 72).get(), DCPTime::from_seconds(4.50).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 198).get(), DCPTime::from_seconds(9.75).get());
+
+	/* Position 0, no trim, content rate 24, DCP rate 25.
+	   Now, for example, a DCPTime position of 3s means 3s at 25fps.  Since we run the video
+	   fast (at 25fps) in this case, this means 75 frames of content video will be used.
+	*/
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (25);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), 0);
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 15).get(), DCPTime::from_seconds(0.6).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 75).get(), DCPTime::from_seconds(3.0).get());
+
+	/* Position 3s, no trim, content rate 24, DCP rate 25 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (25);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), DCPTime::from_seconds(3.00).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 40).get(), DCPTime::from_seconds(4.60).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 169).get(), DCPTime::from_seconds(9.76).get());
+
+	/* Position 3s, 1.6s trim, content rate 24, DCP rate 25, so the 1.6s trim is at 24fps */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.6));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (25);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), 142080);
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 40).get(), 295680);
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 80).get(), 449280);
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 209).get(), 944640);
+
+	/* Position 0, no trim, content rate 24, DCP rate 48
+	   Now, for example, a DCPTime position of 3s means 3s at 48fps.  Since we run the video
+	   with repeated frames in this case, 3 * 24 frames of content video will
+	   be used to make 3 * 48 frames of DCP video.  The results should be the same as the
+	   content rate = DCP rate case.
+	*/
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (48);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), 0);
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 12).get(), DCPTime::from_seconds(0.5).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 72).get(), DCPTime::from_seconds(3.0).get());
+
+	/* Position 3s, no trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (48);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), DCPTime::from_seconds(3.00).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 36).get(), DCPTime::from_seconds(4.50).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 162).get(), DCPTime::from_seconds(9.75).get());
+
+	/* Position 3s, 1.5s trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (48);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), DCPTime::from_seconds(1.50).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 36).get(), DCPTime::from_seconds(3.00).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 72).get(), DCPTime::from_seconds(4.50).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 198).get(), DCPTime::from_seconds(9.75).get());
+
+	/* Position 0, no trim, content rate 48, DCP rate 24
+	   Now, for example, a DCPTime position of 3s means 3s at 24fps.  Since we run the video
+	   with skipped frames in this case, 3 * 48 frames of content video will
+	   be used to make 3 * 24 frames of DCP video.
+	*/
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (48);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), 0);
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 24).get(), DCPTime::from_seconds(0.5).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 144).get(), DCPTime::from_seconds(3.0).get());
+
+	/* Position 3s, no trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (48);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), DCPTime::from_seconds(3.00).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 72).get(), DCPTime::from_seconds(4.50).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 324).get(), DCPTime::from_seconds(9.75).get());
+
+	/* Position 3s, 1.5s trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (48);
+	film->set_video_frame_rate (24);
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 0).get(), DCPTime::from_seconds(1.50).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 72).get(), DCPTime::from_seconds(3.00).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 144).get(), DCPTime::from_seconds(4.50).get());
+	BOOST_CHECK_EQUAL (player->content_video_to_dcp(piece, 396).get(), DCPTime::from_seconds(9.75).get());
 }
 
-/* XXX much more stuff to test */
+/** Test Player::dcp_to_content_audio */
+BOOST_AUTO_TEST_CASE (player_time_calculation_test3)
+{
+	auto film = new_test_film ("player_time_calculation_test3");
+
+	auto doc = make_shared<cxml::Document>();
+	doc->read_string (xml);
+
+	list<string> notes;
+	auto content = make_shared<FFmpegContent>(doc, film->state_version(), notes);
+	auto stream = content->audio->streams().front();
+	film->set_sequence (false);
+	film->add_content (content);
+
+	auto player = make_shared<Player>(film, Image::Alignment::COMPACT);
+
+	/* Position 0, no trim, video/audio content rate = video/audio DCP rate */
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	auto piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.5)),  24000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.0)), 144000);
+
+	/* Position 3s, no trim, video/audio content rate = video/audio DCP rate */
+	content->set_position (film, DCPTime::from_seconds (3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.50)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.50)),  72000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 324000);
+
+	/* Position 3s, 1.5s trim, video/audio content rate = video/audio DCP rate */
+	content->set_position (film, DCPTime::from_seconds (3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.50)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),  72000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.50)), 144000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 396000);
+
+	/* Position 0, no trim, content video rate 24, DCP video rate 25, both audio rates still 48k */
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (25);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.6)),  28800);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.0)), 144000);
+
+	/* Position 3s, no trim, content video rate 24, DCP rate 25, both audio rates still 48k. */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (25);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.60)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.60)),  76800);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 324000);
+
+	/* Position 3s, 1.6s trim, content rate 24, DCP rate 25, both audio rates still 48k.
+	   1s of content is 46080 samples after resampling.
+	*/
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.6));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (25);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.60)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),  72960);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.60)), 149760);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 396960);
+
+	/* Position 0, no trim, content rate 24, DCP rate 48, both audio rates still 48k.
+	   Now, for example, a DCPTime position of 3s means 3s at 48fps.  Since we run the video
+	   with repeated frames in this case, audio samples will map straight through.
+	   The results should be the same as the content rate = DCP rate case.
+	*/
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (48);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.5)),  24000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.0)), 144000);
+
+	/* Position 3s, no trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.50)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.50)),  72000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 324000);
+
+	/* Position 3s, 1.5s trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.50)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),  72000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.50)), 144000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 396000);
+
+	/* Position 0, no trim, content rate 48, DCP rate 24
+	   Now, for example, a DCPTime position of 3s means 3s at 24fps.  Since we run the video
+	   with skipped frames in this case, audio samples should map straight through.
+	*/
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (48);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.5)),  24000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.0)), 144000);
+
+	/* Position 3s, no trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.50)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.50)),  72000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 324000);
+
+	/* Position 3s, 1.5s trim, content rate 24, DCP rate 48 */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.50)),   0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),  72000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.50)), 144000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 396000);
+
+	/* Position 0, no trim, video content rate = video DCP rate, content audio rate = 44.1k */
+	content->set_position (film, DCPTime());
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 44100;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.5)),  24000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.0)), 144000);
+
+	/* Position 3s, no trim, video content rate = video DCP rate, content audio rate = 44.1k */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime ());
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 44100;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.50)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.50)),  72000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 324000);
+
+	/* Position 3s, 1.5s trim, video content rate = video DCP rate, content audio rate = 44.1k */
+	content->set_position (film, DCPTime::from_seconds(3));
+	content->set_trim_start (ContentTime::from_seconds (1.5));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 44100;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (0.50)),      0);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (3.00)),  72000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (4.50)), 144000);
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime::from_seconds (9.75)), 396000);
+
+	/* Check with a large start trim */
+	content->set_position (film, DCPTime::from_seconds(0));
+	content->set_trim_start (ContentTime::from_seconds (54143));
+	content->set_video_frame_rate (24);
+	film->set_video_frame_rate (24);
+	stream->_frame_rate = 48000;
+	player->setup_pieces ();
+	BOOST_REQUIRE_EQUAL (player->_pieces.size(), 1U);
+	piece = player->_pieces.front ();
+	BOOST_CHECK_EQUAL (player->dcp_to_resampled_audio (piece, DCPTime ()), 54143LL * 48000);
+}