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/*
Copyright (C) 2013-2014 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/>.
*/
/** @file test/silence_padding_test.cc
* @brief Test the padding (with silence) of a mono source to a 6-channel DCP.
* @ingroup specific
*/
#include "lib/ffmpeg_content.h"
#include "lib/film.h"
#include "lib/dcp_content_type.h"
#include "lib/ratio.h"
#include "test.h"
#include <dcp/cpl.h>
#include <dcp/dcp.h>
#include <dcp/sound_asset.h>
#include <dcp/sound_frame.h>
#include <dcp/reel.h>
#include <dcp/reel_sound_asset.h>
#include <dcp/sound_asset_reader.h>
#include <boost/test/unit_test.hpp>
using std::string;
using boost::lexical_cast;
using boost::shared_ptr;
static void
test_silence_padding (int channels)
{
string const film_name = "silence_padding_test_" + lexical_cast<string> (channels);
shared_ptr<Film> film = new_test_film (film_name);
film->set_dcp_content_type (DCPContentType::from_isdcf_name ("FTR"));
film->set_container (Ratio::from_id ("185"));
film->set_name (film_name);
shared_ptr<FFmpegContent> content (new FFmpegContent (film, "test/data/staircase.wav"));
film->examine_and_add_content (content);
wait_for_jobs ();
film->set_audio_channels (channels);
film->make_dcp ();
wait_for_jobs ();
boost::filesystem::path path = "build/test";
path /= film_name;
path /= film->dcp_name ();
dcp::DCP check (path.string ());
check.read ();
shared_ptr<const dcp::ReelSoundAsset> sound_asset = check.cpls().front()->reels().front()->main_sound ();
BOOST_CHECK (sound_asset);
BOOST_CHECK_EQUAL (sound_asset->asset()->channels (), channels);
/* Sample index in the DCP */
int n = 0;
/* DCP sound asset frame */
int frame = 0;
while (n < sound_asset->asset()->intrinsic_duration()) {
shared_ptr<const dcp::SoundFrame> sound_frame = sound_asset->asset()->start_read()->get_frame (frame++);
uint8_t const * d = sound_frame->data ();
for (int i = 0; i < sound_frame->size(); i += (3 * sound_asset->asset()->channels())) {
if (sound_asset->asset()->channels() > 0) {
/* L should be silent */
int const sample = d[i + 1] | (d[i + 2] << 8);
BOOST_CHECK_EQUAL (sample, 0);
}
if (sound_asset->asset()->channels() > 1) {
/* R should be silent */
int const sample = d[i + 4] | (d[i + 5] << 8);
BOOST_CHECK_EQUAL (sample, 0);
}
if (sound_asset->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->asset()->channels() > 3) {
/* Lfe should be silent */
int const sample = d[i + 10] | (d[i + 11] << 8);
BOOST_CHECK_EQUAL (sample, 0);
}
if (sound_asset->asset()->channels() > 4) {
/* Ls should be silent */
int const sample = d[i + 13] | (d[i + 14] << 8);
BOOST_CHECK_EQUAL (sample, 0);
}
if (sound_asset->asset()->channels() > 5) {
/* Rs should be silent */
int const sample = d[i + 16] | (d[i + 17] << 8);
BOOST_CHECK_EQUAL (sample, 0);
}
++n;
}
}
}
BOOST_AUTO_TEST_CASE (silence_padding_test)
{
for (int i = 1; i < MAX_DCP_AUDIO_CHANNELS; ++i) {
test_silence_padding (i);
}
}
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