--- /dev/null
+/*
+ Copyright (C) 2020 Carl Hetherington <cth@carlh.net>
+
+ This file is part of libdcp.
+
+ libdcp 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.
+
+ libdcp 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 libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
+*/
+
+
+#include "bitstream.h"
+#include "dcp_assert.h"
+#include <iostream>
+#include <stdint.h>
+#include <string.h>
+
+
+using namespace dcp;
+
+
+void
+Bitstream::write_bit (bool bit)
+{
+ if (_crc) {
+ _crc->process_bit (bit);
+ }
+ _data.push_back (bit);
+}
+
+
+void
+Bitstream::write_from_byte (uint8_t byte, int bits)
+{
+ for (int i = bits - 1; i >= 0; --i) {
+ write_bit ((byte >> i) & 1);
+ }
+}
+
+
+void
+Bitstream::write_from_word (uint32_t word, int bits)
+{
+ for (int i = bits - 1; i >= 0; --i) {
+ write_bit ((word >> i) & 1);
+ }
+}
+
+
+void
+Bitstream::start_crc (uint16_t poly)
+{
+ DCP_ASSERT (!static_cast<bool>(_crc));
+ _crc = boost::crc_basic<16> (poly);
+}
+
+
+void
+Bitstream::write_crc ()
+{
+ DCP_ASSERT (static_cast<bool>(_crc));
+ uint16_t crc = _crc->checksum();
+ write_from_word (crc, 16);
+ _crc = boost::none;
+}
+
--- /dev/null
+/*
+ Copyright (C) 2020 Carl Hetherington <cth@carlh.net>
+
+ This file is part of libdcp.
+
+ libdcp 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.
+
+ libdcp 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 libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
+*/
+
+
+#include <boost/crc.hpp>
+#include <boost/optional.hpp>
+#include <stdint.h>
+#include <vector>
+
+
+namespace dcp {
+
+class Bitstream
+{
+public:
+ void start_crc (uint16_t poly);
+ void write_bit (bool bit);
+ void write_from_byte (uint8_t byte, int bits = 8);
+ void write_from_word (uint32_t word, int bits = 32);
+ void write_crc ();
+
+ std::vector<bool> get() const {
+ return _data;
+ }
+
+private:
+ std::vector<bool> _data;
+ boost::optional<boost::crc_basic<16> > _crc;
+};
+
+}
--- /dev/null
+/*
+ Copyright (C) 2020 Carl Hetherington <cth@carlh.net>
+
+ This file is part of libdcp.
+
+ libdcp 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.
+
+ libdcp 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 libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
+*/
+
+
+#include "fsk.h"
+#include <iostream>
+
+
+using std::cout;
+using std::vector;
+using namespace dcp;
+
+
+FSK::FSK ()
+ : _data_position (0)
+ , _sample_position (0)
+ , _last_polarity (false)
+ , _last_bit (false)
+{
+
+}
+
+
+void
+FSK::set_data (vector<bool> data)
+{
+ _data = data;
+ _data_position = _sample_position = 0;
+}
+
+
+int32_t
+FSK::get ()
+{
+ static int const twenty_four_bit = 8388608; // 2^23
+
+ static int const lut[4][2] = {
+ // sample 0
+ {
+ int( 0.03827 * twenty_four_bit), // 0
+ int( 0.07071 * twenty_four_bit), // 1
+ },
+ // sample 1
+ {
+ int( 0.09239 * twenty_four_bit), // 0
+ int( 0.07071 * twenty_four_bit), // 1
+ },
+ // sample 2
+ {
+ int( 0.09239 * twenty_four_bit), // 0
+ int(-0.07071 * twenty_four_bit), // 1
+ },
+ // sample 3
+ {
+ int( 0.03827 * twenty_four_bit), // 0
+ int(-0.07071 * twenty_four_bit), // 1
+ }
+ };
+
+ /* The bit we are working on */
+ bool const bit = _data[_data_position];
+ /* Get the +ve version of the required sample */
+ int sample = lut[_sample_position][bit];
+
+ bool polarity = _last_polarity;
+ if (_sample_position == 0 && _last_bit == false) {
+ /* We're starting a new bit, and the last one was 0 so we need to flip
+ * the polarity we are using.
+ */
+ polarity = !polarity;
+ }
+
+ /* Obey the required polarity for this sample */
+ if (polarity == false) {
+ sample = -sample;
+ }
+
+ /* Get ready for next time */
+
+ _last_bit = bit;
+ _last_polarity = polarity;
+
+ ++_sample_position;
+ if (_sample_position == 4) {
+ _sample_position = 0;
+ ++_data_position;
+ }
+
+ return sample;
+}
+
--- /dev/null
+/*
+ Copyright (C) 2020 Carl Hetherington <cth@carlh.net>
+
+ This file is part of libdcp.
+
+ libdcp 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.
+
+ libdcp 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 libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
+*/
+
+
+#include <stdint.h>
+#include <vector>
+
+
+namespace dcp {
+
+
+/** @class FSK
+ * @brief Create frequency-shift-keyed samples for encoding synchronization signals.
+ *
+ * An array of data is given to a FSK object using set_data(), and on calling get()
+ * this data will be returned in a the D-Cinema FSK "format", sample by sample, starting
+ * with the MSB of the first byte in the data array.
+ *
+ */
+class FSK
+{
+public:
+ FSK ();
+
+ void set_data (std::vector<bool> data);
+
+ /** @return the next sample as a 24-bit signed integer */
+ int32_t get ();
+
+private:
+ std::vector<bool> _data;
+ /** current offset into _data */
+ int _data_position;
+ /** current sample number of the current bit (0-3) */
+ int _sample_position;
+ /** polarity of the last bit to be written (false for -ve, true for +ve) */
+ bool _last_polarity;
+ /** value of the last bit to be written */
+ bool _last_bit;
+};
+
+}
+
+
struct write_smpte_subtitle_test;
struct write_smpte_subtitle_test2;
struct write_smpte_subtitle_test3;
+struct sync_test2;
namespace dcp {
friend struct ::write_smpte_subtitle_test;
friend struct ::write_smpte_subtitle_test2;
friend struct ::write_smpte_subtitle_test3;
+ friend struct ::sync_test2;
/** ID */
std::string _id;
}
shared_ptr<SoundAssetWriter>
-SoundAsset::start_write (boost::filesystem::path file)
+SoundAsset::start_write (boost::filesystem::path file, bool atmos_sync)
{
- /* XXX: can't we use a shared_ptr here? */
- return shared_ptr<SoundAssetWriter> (new SoundAssetWriter (this, file));
+ if (atmos_sync && _channels < 14) {
+ throw MiscError ("Insufficient channels to write ATMOS sync (there must be at least 14)");
+ }
+
+ return shared_ptr<SoundAssetWriter> (new SoundAssetWriter(this, file, atmos_sync));
}
shared_ptr<SoundAssetReader>
explicit SoundAsset (boost::filesystem::path file);
SoundAsset (Fraction edit_rate, int sampling_rate, int channels, Standard standard);
- boost::shared_ptr<SoundAssetWriter> start_write (boost::filesystem::path file);
+ boost::shared_ptr<SoundAssetWriter> start_write (boost::filesystem::path file, bool atmos_sync = false);
boost::shared_ptr<SoundAssetReader> start_read () const;
bool equals (
/*
- Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2020 Carl Hetherington <cth@carlh.net>
This file is part of libdcp.
files in the program, then also delete it here.
*/
+#include "bitstream.h"
#include "sound_asset_writer.h"
#include "sound_asset.h"
#include "exceptions.h"
using std::min;
using std::max;
using std::cout;
+using std::string;
+using std::vector;
using namespace dcp;
struct SoundAssetWriter::ASDCPState
ASDCP::PCM::AudioDescriptor desc;
};
-SoundAssetWriter::SoundAssetWriter (SoundAsset* asset, boost::filesystem::path file)
+SoundAssetWriter::SoundAssetWriter (SoundAsset* asset, boost::filesystem::path file, bool sync)
: AssetWriter (asset, file)
, _state (new SoundAssetWriter::ASDCPState)
, _asset (asset)
, _frame_buffer_offset (0)
+ , _sync (sync)
+ , _sync_packet (0)
{
+ DCP_ASSERT (!_sync || _asset->channels() >= 14);
+ DCP_ASSERT (!_sync || _asset->standard() == SMPTE);
+
/* Derived from ASDCP::Wav::SimpleWaveHeader::FillADesc */
_state->desc.EditRate = ASDCP::Rational (_asset->edit_rate().numerator, _asset->edit_rate().denominator);
_state->desc.AudioSamplingRate = ASDCP::Rational (_asset->sampling_rate(), 1);
memset (_state->frame_buffer.Data(), 0, _state->frame_buffer.Capacity());
_asset->fill_writer_info (&_state->writer_info, _asset->id());
+
+ if (_sync) {
+ _fsk.set_data (create_sync_packets());
+ }
}
void
/* Write one sample per channel */
for (int j = 0; j < ch; ++j) {
- /* Convert sample to 24-bit int, clipping if necessary. */
- float x = data[j][i];
- if (x > clip) {
- x = clip;
- } else if (x < -clip) {
- x = -clip;
+ int32_t s = 0;
+ if (j == 13 && _sync) {
+ s = _fsk.get();
+ } else {
+ /* Convert sample to 24-bit int, clipping if necessary. */
+ float x = data[j][i];
+ if (x > clip) {
+ x = clip;
+ } else if (x < -clip) {
+ x = -clip;
+ }
+ s = x * (1 << 23);
}
- int32_t const s = x * (1 << 23);
*out++ = (s & 0xff);
*out++ = (s & 0xff00) >> 8;
*out++ = (s & 0xff0000) >> 16;
}
++_frames_written;
+
+ if (_sync) {
+ /* We need a new set of sync packets for this frame */
+ _fsk.set_data (create_sync_packets());
+ }
}
bool
_asset->_intrinsic_duration = _frames_written;
return AssetWriter::finalize ();
}
+
+
+/** Calculate and return the sync packets required for this edit unit (aka "frame") */
+vector<bool>
+SoundAssetWriter::create_sync_packets ()
+{
+ /* Parts of this code assumes 48kHz */
+ DCP_ASSERT (_asset->sampling_rate() == 48000);
+
+ /* Encoding of edit rate */
+ int edit_rate_code = 0;
+ /* How many 0 bits are used to pad the end of the packet */
+ int remaining_bits = 0;
+ /* How many packets in this edit unit (i.e. "frame") */
+ int packets = 0;
+ Fraction const edit_rate = _asset->edit_rate ();
+ if (edit_rate == Fraction(24, 1)) {
+ edit_rate_code = 0;
+ remaining_bits = 25;
+ packets = 4;
+ } else if (edit_rate == Fraction(25, 1)) {
+ edit_rate_code = 1;
+ remaining_bits = 20;
+ packets = 4;
+ } else if (edit_rate == Fraction(30, 1)) {
+ edit_rate_code = 2;
+ remaining_bits = 0;
+ packets = 4;
+ } else if (edit_rate == Fraction(48, 1)) {
+ edit_rate_code = 3;
+ remaining_bits = 25;
+ packets = 2;
+ } else if (edit_rate == Fraction(50, 1)) {
+ edit_rate_code = 4;
+ remaining_bits = 20;
+ packets = 2;
+ } else if (edit_rate == Fraction(60, 1)) {
+ edit_rate_code = 5;
+ remaining_bits = 0;
+ packets = 2;
+ } else if (edit_rate == Fraction(96, 1)) {
+ edit_rate_code = 6;
+ remaining_bits = 25;
+ packets = 1;
+ } else if (edit_rate == Fraction(100, 1)) {
+ edit_rate_code = 7;
+ remaining_bits = 20;
+ packets = 1;
+ } else if (edit_rate == Fraction(120, 1)) {
+ edit_rate_code = 8;
+ remaining_bits = 0;
+ packets = 1;
+ }
+
+ Bitstream bs;
+
+ Kumu::UUID id;
+ DCP_ASSERT (id.DecodeHex(_asset->id().c_str()));
+
+ for (int i = 0; i < packets; ++i) {
+ bs.write_from_byte (0x4d);
+ bs.write_from_byte (0x56);
+ bs.start_crc (0x1021);
+ bs.write_from_byte (edit_rate_code, 4);
+ bs.write_from_byte (0, 2);
+ bs.write_from_byte (_sync_packet, 2);
+ bs.write_from_byte (id.Value()[i * 4 + 0]);
+ bs.write_from_byte (id.Value()[i * 4 + 1]);
+ bs.write_from_byte (id.Value()[i * 4 + 2]);
+ bs.write_from_byte (id.Value()[i * 4 + 3]);
+ bs.write_from_word (_frames_written, 24);
+ bs.write_crc ();
+ bs.write_from_byte (0, 4);
+ bs.write_from_word (0, remaining_bits);
+
+ ++_sync_packet;
+ if (_sync_packet == 4) {
+ _sync_packet = 0;
+ }
+ }
+
+ return bs.get();
+}
+
/*
- Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2020 Carl Hetherington <cth@carlh.net>
This file is part of libdcp.
*/
#include "asset_writer.h"
+#include "fsk.h"
#include "types.h"
#include "sound_frame.h"
#include <boost/shared_ptr.hpp>
#include <boost/filesystem.hpp>
+#include <boost/shared_array.hpp>
+
+
+struct sync_test1;
+
namespace dcp {
private:
friend class SoundAsset;
+ friend struct ::sync_test1;
- SoundAssetWriter (SoundAsset *, boost::filesystem::path);
+ SoundAssetWriter (SoundAsset *, boost::filesystem::path, bool sync);
void write_current_frame ();
+ std::vector<bool> create_sync_packets ();
/* do this with an opaque pointer so we don't have to include
ASDCP headers
SoundAsset* _asset;
int _frame_buffer_offset;
+
+ /** true to ignore any signal passed to write() on channel 14 and instead write a sync track */
+ bool _sync;
+ /** index of the sync packet (0-3) which starts the next edit unit */
+ int _sync_packet;
+ FSK _fsk;
};
}
asset_writer.cc
atmos_asset.cc
atmos_asset_writer.cc
+ bitstream.cc
certificate_chain.cc
certificate.cc
chromaticity.cc
exceptions.cc
file.cc
font_asset.cc
+ fsk.cc
gamma_transfer_function.cc
identity_transfer_function.cc
interop_load_font_node.cc
exceptions.h
font_asset.h
frame.h
+ fsk.h
gamma_transfer_function.h
identity_transfer_function.h
interop_load_font_node.h
--- /dev/null
+/*
+ Copyright (C) 2020 Carl Hetherington <cth@carlh.net>
+
+ This file is part of libdcp.
+
+ libdcp 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.
+
+ libdcp 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 libdcp. If not, see <http://www.gnu.org/licenses/>.
+
+ In addition, as a special exception, the copyright holders give
+ permission to link the code of portions of this program with the
+ OpenSSL library under certain conditions as described in each
+ individual source file, and distribute linked combinations
+ including the two.
+
+ You must obey the GNU General Public License in all respects
+ for all of the code used other than OpenSSL. If you modify
+ file(s) with this exception, you may extend this exception to your
+ version of the file(s), but you are not obligated to do so. If you
+ do not wish to do so, delete this exception statement from your
+ version. If you delete this exception statement from all source
+ files in the program, then also delete it here.
+*/
+
+
+#include "sound_asset.h"
+#include "sound_asset_reader.h"
+#include "sound_asset_writer.h"
+#include "test.h"
+#include <boost/filesystem.hpp>
+#include <boost/shared_ptr.hpp>
+#include <boost/test/unit_test.hpp>
+#include <vector>
+
+
+using std::vector;
+using boost::shared_array;
+using boost::shared_ptr;
+
+
+static const int sample_A = 0.038 * 8388608;
+static const int sample_B = 0.092 * 8388608;
+static const int sample_C = 0.071 * 8388608;
+
+static
+bool
+close (int reference, int sample)
+{
+ return abs (reference - sample) < 4096;
+}
+
+
+static
+bool
+close (int ref1, int ref2, int ref3, int ref4, int check[4])
+{
+ return close(ref1, check[0]) && close(ref2, check[1]) && close(ref3, check[2]) && close(ref4, check[3]);
+}
+
+
+static int const sync_channel = 13;
+static int const bytes_per_sample = 3;
+
+
+static int
+read_sync_sample (uint8_t const* data, int sample_index, int channels)
+{
+ uint8_t const* p = data + (sample_index * channels * bytes_per_sample) + sync_channel * bytes_per_sample;
+ return static_cast<int>((p[0] << 8) | (p[1] << 16) | (p[2] << 24)) / 256;
+}
+
+
+BOOST_AUTO_TEST_CASE (sync_test1)
+{
+ dcp::SoundAsset asset (private_test / "atmos_pcm.mxf");
+ shared_ptr<dcp::SoundAssetReader> reader = asset.start_read ();
+ shared_ptr<const dcp::SoundFrame> frame = reader->get_frame (0);
+
+ /* Read the samples from the first MXF frame of channel 14 and decode them to bits */
+ uint8_t const * data = frame->data ();
+ vector<bool> ref;
+ /* There's 2000 samples which contain 500 bits of data */
+ for (int i = 0; i < 500; ++i) {
+ int bit[4];
+ for (int j = 0; j < 4; ++j) {
+ int sample_index = i * 4 + j;
+ bit[j] = read_sync_sample (data, sample_index, asset.channels());
+ }
+
+ if (close(sample_A, sample_B, sample_B, sample_A, bit)) {
+ ref.push_back (false);
+ } else if (close(-sample_A, -sample_B, -sample_B, -sample_A, bit)) {
+ ref.push_back (false);
+ } else if (close(sample_C, sample_C, -sample_C, -sample_C, bit)) {
+ ref.push_back (true);
+ } else if (close(-sample_C, -sample_C, sample_C, sample_C, bit)) {
+ ref.push_back (true);
+ } else {
+ BOOST_CHECK (false);
+ }
+ }
+
+ shared_ptr<dcp::SoundAssetWriter> writer = asset.start_write ("build/test/foo.mxf", true);
+
+ /* Compare the sync bits made by SoundAssetWriter to the "proper" ones in the MXF */
+ BOOST_CHECK (ref == writer->create_sync_packets());
+}
+
+
+BOOST_AUTO_TEST_CASE (sync_test2)
+{
+ /* Make a MXF with the same ID as atmos_pcm.mxf and write a frame of random stuff */
+ int const channels = 14;
+ dcp::SoundAsset asset (dcp::Fraction(24, 1), 48000, channels, dcp::SMPTE);
+ asset._id = "e004046e09234f90a4ae4355e7e83506";
+ boost::system::error_code ec;
+ boost::filesystem::remove ("build/test/foo.mxf", ec);
+ shared_ptr<dcp::SoundAssetWriter> writer = asset.start_write ("build/test/foo.mxf", true);
+
+ int const frames = 2000;
+ float** junk = new float*[channels];
+ for (int i = 0; i < channels; ++i) {
+ junk[i] = new float[frames];
+ for (int j = 0; j < frames; ++j) {
+ junk[i][j] = float(rand()) / RAND_MAX;
+ }
+ }
+
+ writer->write (junk, frames);
+ for (int i = 0; i < channels; ++i) {
+ delete[] junk[i];
+ }
+ delete[] junk;
+ writer->finalize ();
+
+ /* Check that channel 14 on the first frame matches channel 14 on the reference */
+ dcp::SoundAsset ref (private_test / "atmos_pcm.mxf");
+ dcp::SoundAsset check ("build/test/foo.mxf");
+
+ shared_ptr<dcp::SoundAssetReader> ref_read = ref.start_read ();
+ shared_ptr<dcp::SoundAssetReader> check_read = check.start_read ();
+
+ shared_ptr<const dcp::SoundFrame> ref_frame = ref_read->get_frame(0);
+ uint8_t const* ref_data = ref_frame->data();
+ shared_ptr<const dcp::SoundFrame> check_frame = check_read->get_frame(0);
+ uint8_t const* check_data = check_frame->data();
+
+ for (int i = 0; i < frames; ++i) {
+ int ref_sample = read_sync_sample (ref_data, i, ref.channels());
+ int check_sample = read_sync_sample (check_data, i, check.channels());
+ BOOST_CHECK (abs(ref_sample - check_sample) < 2);
+ }
+}
+
smpte_load_font_test.cc
smpte_subtitle_test.cc
sound_frame_test.cc
+ sync_test.cc
test.cc
util_test.cc
utf8_test.cc
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