Move tests that only need src/lib into test/lib.

1 files changed, 541 insertions, 0 deletions

diff --git a/test/lib/ffmpeg_encoder_test.cc b/test/lib/ffmpeg_encoder_test.cc
new file mode 100644
index 000000000..a73436f3a
--- /dev/null
+++ b/test/lib/ffmpeg_encoder_test.cc
@@ -0,0 +1,541 @@
+/*
+    Copyright (C) 2017-2021 Carl Hetherington <cth@carlh.net>
+
+    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.
+
+    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 DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#include "lib/audio_content.h"
+#include "lib/compose.hpp"
+#include "lib/config.h"
+#include "lib/constants.h"
+#include "lib/content_factory.h"
+#include "lib/cross.h"
+#include "lib/dcp_content.h"
+#include "lib/dcpomatic_log.h"
+#include "lib/ffmpeg_content.h"
+#include "lib/ffmpeg_examiner.h"
+#include "lib/ffmpeg_film_encoder.h"
+#include "lib/film.h"
+#include "lib/image_content.h"
+#include "lib/ratio.h"
+#include "lib/string_text_file_content.h"
+#include "lib/text_content.h"
+#include "lib/transcode_job.h"
+#include "lib/video_content.h"
+#include "../test.h"
+#include <dcp/file.h>
+#include <dcp/raw_convert.h>
+#include <boost/test/unit_test.hpp>
+
+
+using std::make_shared;
+using std::string;
+using std::vector;
+using namespace dcpomatic;
+
+
+static void
+ffmpeg_content_test (int number, boost::filesystem::path content, ExportFormat format)
+{
+	Cleanup cl;
+
+	string name = "ffmpeg_encoder_";
+	string extension;
+	switch (format) {
+	case ExportFormat::H264_AAC:
+		name += "h264";
+		extension = "mp4";
+		break;
+	case ExportFormat::PRORES_4444:
+		name += "prores-444";
+		extension = "mov";
+		break;
+	case ExportFormat::PRORES_HQ:
+		name += "prores-hq";
+		extension = "mov";
+		break;
+	case ExportFormat::PRORES_LT:
+		name += "prores-lt";
+		extension = "mov";
+		break;
+	case ExportFormat::SUBTITLES_DCP:
+		BOOST_REQUIRE (false);
+	}
+
+	name = String::compose("%1_test%2", name, number);
+
+	auto c = make_shared<FFmpegContent>(content);
+	auto film = new_test_film(name, {c}, &cl);
+	film->set_name (name);
+	film->set_audio_channels (6);
+
+	film->write_metadata ();
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	auto file = boost::filesystem::path("build") / "test" / String::compose("%1.%2", name, extension);
+	cl.add (file);
+	FFmpegFilmEncoder encoder(film, job, file, format, false, false, false, 23);
+	encoder.go ();
+
+	cl.run ();
+}
+
+
+/** Red / green / blue MP4 -> Prores */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_test1)
+{
+	ffmpeg_content_test (1, "test/data/test.mp4", ExportFormat::PRORES_HQ);
+}
+
+
+/** Dolby Aurora trailer VOB -> Prores */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_test2)
+{
+	ffmpeg_content_test (2, TestPaths::private_data() / "dolby_aurora.vob", ExportFormat::PRORES_HQ);
+}
+
+
+/** Sintel trailer -> Prores */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_test3)
+{
+	ffmpeg_content_test (3, TestPaths::private_data() / "Sintel_Trailer1.480p.DivX_Plus_HD.mkv", ExportFormat::PRORES_HQ);
+}
+
+
+/** Big Buck Bunny trailer -> Prores */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_test4)
+{
+	ffmpeg_content_test (4, TestPaths::private_data() / "big_buck_bunny_trailer_480p.mov", ExportFormat::PRORES_HQ);
+}
+
+
+/** Still image -> Prores */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_test5)
+{
+	boost::filesystem::path const output = "build/test/ffmpeg_encoder_prores_test5.mov";
+	Cleanup cl;
+	cl.add(output);
+
+	auto c = make_shared<ImageContent>(TestPaths::private_data() / "bbc405.png");
+	auto film = new_test_film("ffmpeg_encoder_prores_test5", { c });
+	film->set_audio_channels (6);
+
+	c->video->set_length (240);
+
+	film->write_metadata ();
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, output, ExportFormat::PRORES_HQ, false, false, false, 23);
+	encoder.go ();
+
+	cl.run();
+}
+
+
+/** Subs -> Prores */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_test6)
+{
+	auto s = make_shared<StringTextFileContent>("test/data/subrip2.srt");
+	auto film = new_test_film("ffmpeg_encoder_prores_test6", { s });
+	film->set_audio_channels (6);
+
+	s->only_text()->set_colour (dcp::Colour (255, 255, 0));
+	s->only_text()->set_effect (dcp::Effect::SHADOW);
+	s->only_text()->set_effect_colour (dcp::Colour (0, 255, 255));
+	film->write_metadata();
+
+	auto job = make_shared<TranscodeJob> (film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, "build/test/ffmpeg_encoder_prores_test6.mov", ExportFormat::PRORES_HQ, false, false, false, 23);
+	encoder.go ();
+}
+
+
+/** Video + subs -> Prores */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_test7)
+{
+	boost::filesystem::path const output = "build/test/ffmpeg_encoder_prores_test7.mov";
+	Cleanup cl;
+	cl.add(output);
+
+	auto c = make_shared<FFmpegContent>("test/data/test.mp4");
+	auto s = make_shared<StringTextFileContent>("test/data/subrip.srt");
+	auto film = new_test_film("ffmpeg_encoder_prores_test7", { c, s });
+	film->set_audio_channels (6);
+
+	s->only_text()->set_colour (dcp::Colour (255, 255, 0));
+	s->only_text()->set_effect (dcp::Effect::SHADOW);
+	s->only_text()->set_effect_colour (dcp::Colour (0, 255, 255));
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, output, ExportFormat::PRORES_HQ, false, false, false, 23);
+	encoder.go ();
+
+	cl.run();
+}
+
+
+/** Red / green / blue MP4 -> H264 */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_test1)
+{
+	ffmpeg_content_test(1, "test/data/test.mp4", ExportFormat::H264_AAC);
+}
+
+
+/** Just subtitles -> H264 */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_test2)
+{
+	auto s = make_shared<StringTextFileContent>("test/data/subrip2.srt");
+	auto film = new_test_film("ffmpeg_encoder_h264_test2", { s });
+	film->set_audio_channels (6);
+
+	s->only_text()->set_colour (dcp::Colour (255, 255, 0));
+	s->only_text()->set_effect (dcp::Effect::SHADOW);
+	s->only_text()->set_effect_colour (dcp::Colour (0, 255, 255));
+	film->write_metadata();
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, "build/test/ffmpeg_encoder_h264_test2.mp4", ExportFormat::H264_AAC, false, false, false, 23);
+	encoder.go ();
+}
+
+
+/** Video + subs -> H264 */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_test3)
+{
+	auto c = make_shared<FFmpegContent>("test/data/test.mp4");
+	auto s = make_shared<StringTextFileContent>("test/data/subrip.srt");
+	auto film = new_test_film("ffmpeg_encoder_h264_test3", { c, s });
+	film->set_audio_channels (6);
+
+	s->only_text()->set_colour (dcp::Colour (255, 255, 0));
+	s->only_text()->set_effect (dcp::Effect::SHADOW);
+	s->only_text()->set_effect_colour (dcp::Colour (0, 255, 255));
+	film->write_metadata();
+
+	auto job = make_shared<TranscodeJob> (film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, "build/test/ffmpeg_encoder_h264_test3.mp4", ExportFormat::H264_AAC, false, false, false, 23);
+	encoder.go ();
+}
+
+
+/** Scope-in-flat DCP -> H264 */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_test4)
+{
+	auto film = new_test_film("ffmpeg_encoder_h264_test4", {make_shared<DCPContent>("test/data/scope_dcp")});
+	BOOST_REQUIRE(!wait_for_jobs());
+
+	film->set_container(Ratio::from_id("185"));
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, "build/test/ffmpeg_encoder_h264_test4.mp4", ExportFormat::H264_AAC, false, false, false, 23);
+	encoder.go();
+}
+
+
+/** Test mixdown from 5.1 to stereo */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_test5)
+{
+	auto L = make_shared<FFmpegContent>("test/data/L.wav");
+	auto R = make_shared<FFmpegContent>("test/data/R.wav");
+	auto C = make_shared<FFmpegContent>("test/data/C.wav");
+	auto Ls = make_shared<FFmpegContent>("test/data/Ls.wav");
+	auto Rs = make_shared<FFmpegContent>("test/data/Rs.wav");
+	auto Lfe = make_shared<FFmpegContent>("test/data/Lfe.wav");
+
+	auto film = new_test_film("ffmpeg_encoder_h264_test5", { L, R, C, Ls, Rs, Lfe });
+	film->set_audio_channels (6);
+
+	AudioMapping map (1, MAX_DCP_AUDIO_CHANNELS);
+
+	L->set_position (film, DCPTime::from_seconds(0));
+	map.make_zero ();
+	map.set (0, 0, 1);
+	L->audio->set_mapping (map);
+	R->set_position (film, DCPTime::from_seconds(1));
+	map.make_zero ();
+	map.set (0, 1, 1);
+	R->audio->set_mapping (map);
+	C->set_position (film, DCPTime::from_seconds(2));
+	map.make_zero ();
+	map.set (0, 2, 1);
+	C->audio->set_mapping (map);
+	Lfe->set_position (film, DCPTime::from_seconds(3));
+	map.make_zero ();
+	map.set (0, 3, 1);
+	Lfe->audio->set_mapping (map);
+	Ls->set_position (film, DCPTime::from_seconds(4));
+	map.make_zero ();
+	map.set (0, 4, 1);
+	Ls->audio->set_mapping (map);
+	Rs->set_position (film, DCPTime::from_seconds(5));
+	map.make_zero ();
+	map.set (0, 5, 1);
+	Rs->audio->set_mapping (map);
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, "build/test/ffmpeg_encoder_h264_test5.mp4", ExportFormat::H264_AAC, true, false, false, 23);
+	encoder.go ();
+
+	check_ffmpeg ("build/test/ffmpeg_encoder_h264_test5.mp4", "test/data/ffmpeg_encoder_h264_test5.mp4", 1);
+}
+
+
+/** Test export of a VF */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_test6)
+{
+	auto film = new_test_film("ffmpeg_encoder_h264_test6_ov");
+	film->examine_and_add_content (make_shared<ImageContent>(TestPaths::private_data() / "bbc405.png"));
+	BOOST_REQUIRE (!wait_for_jobs());
+	make_and_verify_dcp (film);
+
+	auto film2 = new_test_film("ffmpeg_encoder_h264_test6_vf");
+	auto ov = make_shared<DCPContent>("build/test/ffmpeg_encoder_h264_test6_ov/" + film->dcp_name(false));
+	film2->examine_and_add_content (ov);
+	BOOST_REQUIRE (!wait_for_jobs());
+	ov->set_reference_video (true);
+	auto subs = content_factory("test/data/subrip.srt")[0];
+	film2->examine_and_add_content (subs);
+	BOOST_REQUIRE (!wait_for_jobs());
+	for (auto i: subs->text) {
+		i->set_use (true);
+	}
+
+	auto job = make_shared<TranscodeJob>(film2, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film2, job, "build/test/ffmpeg_encoder_h264_test6_vf.mp4", ExportFormat::H264_AAC, true, false, false, 23);
+	encoder.go ();
+}
+
+
+/** Test export of a 3D DCP in a 2D project */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_3d_dcp_to_h264)
+{
+	boost::filesystem::path const output = "build/test/ffmpeg_encoder_3d_dcp_to_h264.mp4";
+	Cleanup cl;
+	cl.add(output);
+
+	auto dcp = make_shared<DCPContent>(TestPaths::private_data() / "xm");
+	auto film2 = new_test_film("ffmpeg_encoder_3d_dcp_to_h264_export", {dcp});
+
+	auto job = make_shared<TranscodeJob>(film2, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film2, job, output, ExportFormat::H264_AAC, true, false, false, 23);
+	encoder.go ();
+
+	cl.run();
+}
+
+
+/** Test export of a 3D DCP in a 2D project */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_test7)
+{
+	auto L = make_shared<ImageContent>(TestPaths::private_data() / "bbc405.png");
+	auto R = make_shared<ImageContent>(TestPaths::private_data() / "bbc405.png");
+	auto film = new_test_film("ffmpeg_encoder_h264_test7_data", {L, R});
+	L->video->set_frame_type (VideoFrameType::THREE_D_LEFT);
+	L->set_position (film, DCPTime());
+	R->video->set_frame_type (VideoFrameType::THREE_D_RIGHT);
+	R->set_position (film, DCPTime());
+	film->set_three_d (true);
+	make_and_verify_dcp (film);
+
+	auto dcp = make_shared<DCPContent>(film->dir(film->dcp_name()));
+	auto film2 = new_test_film("ffmpeg_encoder_h264_test7_export", {dcp});
+
+	auto job = make_shared<TranscodeJob> (film2, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film2, job, "build/test/ffmpeg_encoder_h264_test7.mp4", ExportFormat::H264_AAC, true, false, false, 23);
+	encoder.go ();
+}
+
+
+BOOST_AUTO_TEST_CASE(ffmpeg_encoder_2d_content_in_3d_project)
+{
+	auto content = make_shared<ImageContent>(TestPaths::private_data() / "bbc405.png");
+	auto film = new_test_film("ffmpeg_encoder_2d_content_in_3d_project", { content });
+	film->set_three_d(true);
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, "build/test/ffmpeg_encoder_2d_content_in_3d_project.mp4", ExportFormat::H264_AAC, true, false, false, 23);
+	encoder.go();
+}
+
+
+/** Stereo project with mixdown-to-stereo set */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_test8)
+{
+	auto film = new_test_film("ffmpeg_encoder_h264_test4");
+	film->examine_and_add_content(make_shared<DCPContent>("test/data/scope_dcp"));
+	BOOST_REQUIRE(!wait_for_jobs());
+	film->set_audio_channels (2);
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, "build/test/ffmpeg_encoder_h264_test8.mp4", ExportFormat::H264_AAC, true, false, false, 23);
+	encoder.go();
+}
+
+
+/** 7.1/HI/VI (i.e. 12-channel) project */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_test9)
+{
+	auto c = make_shared<ImageContent>(TestPaths::private_data() / "bbc405.png");
+	auto film = new_test_film("ffmpeg_encoder_prores_test9", { c });
+	film->set_name ("ffmpeg_encoder_prores_test9");
+	film->set_container (Ratio::from_id ("185"));
+	film->set_audio_channels (12);
+
+	film->examine_and_add_content (c);
+	BOOST_REQUIRE (!wait_for_jobs ());
+
+	c->video->set_length (240);
+
+	film->write_metadata ();
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder (film, job, "build/test/ffmpeg_encoder_prores_test9.mov", ExportFormat::H264_AAC, false, false, false, 23);
+	encoder.go ();
+}
+
+
+/** DCP -> Prores with crop */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_from_dcp_with_crop)
+{
+	auto dcp = make_shared<DCPContent>("test/data/import_dcp_test2");
+	auto film = new_test_film("ffmpeg_encoder_prores_from_dcp_with_crop", { dcp });
+	dcp->video->set_left_crop (32);
+	dcp->video->set_right_crop (32);
+	film->write_metadata ();
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder (film, job, "build/test/ffmpeg_encoder_prores_from_dcp_with_crop.mov", ExportFormat::PRORES_HQ, false, false, false, 23);
+	encoder.go ();
+}
+
+
+/** DCP -> H264 with crop */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_from_dcp_with_crop)
+{
+	auto dcp = make_shared<DCPContent>("test/data/import_dcp_test2");
+	auto film = new_test_film("ffmpeg_encoder_h264_from_dcp_with_crop", { dcp });
+	dcp->video->set_left_crop (32);
+	dcp->video->set_right_crop (32);
+	film->write_metadata ();
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder (film, job, "build/test/ffmpeg_encoder_prores_from_dcp_with_crop.mov", ExportFormat::H264_AAC, false, false, false, 23);
+	encoder.go ();
+}
+
+
+/** Export to H264 with reels */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_h264_with_reels)
+{
+	auto content1 = content_factory("test/data/flat_red.png")[0];
+	auto content2 = content_factory("test/data/flat_red.png")[0];
+	auto film = new_test_film("ffmpeg_encoder_h264_with_reels", { content1, content2 });
+	film->set_reel_type (ReelType::BY_VIDEO_CONTENT);
+	content1->video->set_length (240);
+	content2->video->set_length (240);
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder (film, job, "build/test/ffmpeg_encoder_h264_with_reels.mov", ExportFormat::H264_AAC, false, true, false, 23);
+	encoder.go ();
+
+	auto check = [](boost::filesystem::path path) {
+		auto reel = std::dynamic_pointer_cast<FFmpegContent>(content_factory(path)[0]);
+		BOOST_REQUIRE (reel);
+		FFmpegExaminer examiner(reel);
+		BOOST_CHECK_EQUAL (examiner.video_length(), 240U);
+	};
+
+	check ("build/test/ffmpeg_encoder_h264_with_reels_reel1.mov");
+	check ("build/test/ffmpeg_encoder_h264_with_reels_reel2.mov");
+}
+
+
+/** Regression test for "Error during decoding: Butler finished" (#2097) */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_regression_1)
+{
+	Cleanup cl;
+
+	auto content = content_factory(TestPaths::private_data() / "arrietty_JP-EN.mkv")[0];
+	auto film = new_test_film("ffmpeg_encoder_prores_regression_1", { content });
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder (film, job, "build/test/ffmpeg_encoder_prores_regression_1.mov", ExportFormat::PRORES_HQ, false, true, false, 23);
+	encoder.go ();
+
+	cl.add("build/test/ffmpeg_encoder_prores_regression_1.mov");
+	cl.run();
+}
+
+
+/** Regression test for Butler video buffers reached 480 frames (audio is 0) (#2101) */
+BOOST_AUTO_TEST_CASE (ffmpeg_encoder_prores_regression_2)
+{
+	Cleanup cl;
+
+	auto logs = dcpomatic_log->types();
+	dcpomatic_log->set_types(logs | LogEntry::TYPE_DEBUG_PLAYER);
+
+	auto content = content_factory(TestPaths::private_data() / "tge_clip.mkv")[0];
+	auto film = new_test_film("ffmpeg_encoder_prores_regression_2", { content });
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder (film, job, "build/test/ffmpeg_encoder_prores_regression_2.mov", ExportFormat::PRORES_HQ, false, true, false, 23);
+	encoder.go ();
+
+	dcpomatic_log->set_types(logs);
+
+	cl.add("build/test/ffmpeg_encoder_prores_regression_2.mov");
+	cl.run();
+}
+
+
+BOOST_AUTO_TEST_CASE(ffmpeg_encoder_missing_frame_at_end)
+{
+	auto content = content_factory(TestPaths::private_data() / "1s1f.mov");
+	auto film = new_test_film("ffmpeg_encoder_missing_frame_at_end", content);
+
+	boost::filesystem::path output("build/test/ffmpeg_encoder_missing_frame_at_end.mov");
+	boost::filesystem::path log("build/test/ffmpeg_encoder_missing_frame_at_end.log");
+
+	auto job = make_shared<TranscodeJob>(film, TranscodeJob::ChangedBehaviour::IGNORE);
+	FFmpegFilmEncoder encoder(film, job, output, ExportFormat::PRORES_HQ, false, true, false, 23);
+	encoder.go();
+
+	run_ffprobe(output, log, false, "-show_frames -show_format -show_streams -select_streams v:0");
+
+	dcp::File read_log(log, "r");
+	BOOST_REQUIRE(read_log);
+
+	int nb_read_frames = 0;
+	int nb_frames = 0;
+	char buffer[256];
+
+	while (!read_log.eof()) {
+		read_log.gets(buffer, sizeof(buffer));
+		vector<string> parts;
+		boost::algorithm::split(parts, buffer, boost::is_any_of("="));
+		if (parts.size() == 2) {
+			if (parts[0] == "nb_read_frames") {
+				nb_read_frames = dcp::raw_convert<int>(parts[1]);
+			} else if (parts[0] == "nb_frames") {
+				nb_frames = dcp::raw_convert<int>(parts[1]);
+			}
+		}
+	}
+
+	BOOST_CHECK_EQUAL(nb_frames, 26);
+	BOOST_CHECK_EQUAL(nb_read_frames, 26);
+}
+