/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ 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.
- This program is distributed in the hope that it will be useful,
+ 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 this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
+ 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 <iostream>
-#include <stdexcept>
-#include <boost/filesystem.hpp>
-#include "AS_DCP.h"
+/** @file src/sound_mxf.cc
+ * @brief SoundAsset class.
+ */
+
#include "sound_asset.h"
#include "util.h"
+#include "exceptions.h"
+#include "sound_frame.h"
+#include "sound_asset_writer.h"
+#include "sound_asset_reader.h"
+#include "compose.hpp"
+#include "dcp_assert.h"
+#include <asdcp/KM_fileio.h>
+#include <asdcp/AS_DCP.h>
+#include <libxml++/nodes/element.h>
+#include <boost/filesystem.hpp>
+#include <stdexcept>
-using namespace std;
-using namespace boost;
-using namespace libdcp;
+using std::string;
+using std::vector;
+using std::list;
+using boost::shared_ptr;
+using boost::dynamic_pointer_cast;
+using namespace dcp;
-/** Construct a SoundAsset, generating the MXF from the WAV files.
- * This may take some time; progress is indicated by emission of the Progress signal.
- * @param files Pathnames of sound files, in the order Left, Right, Centre, Lfe (sub), Left surround, Right surround.
- * @param p Pathname of MXF file to create.
- * @param fps Frames per second.
- * @param len Length in frames.
- */
-
-SoundAsset::SoundAsset (list<string> const & files, string p, int fps, int len)
- : Asset (p, fps, len)
+SoundAsset::SoundAsset (boost::filesystem::path file)
+ : Asset (file)
{
- ASDCP::Rational asdcp_fps (_fps, 1);
-
- ASDCP::PCM::WAVParser pcm_parser_channel[files.size()];
- if (pcm_parser_channel[0].OpenRead (files.front().c_str(), asdcp_fps)) {
- throw runtime_error ("could not open WAV file for reading");
+ ASDCP::PCM::MXFReader reader;
+ Kumu::Result_t r = reader.OpenRead (file.string().c_str());
+ if (ASDCP_FAILURE (r)) {
+ boost::throw_exception (MXFFileError ("could not open MXF file for reading", file.string(), r));
}
-
- ASDCP::PCM::AudioDescriptor audio_desc;
- pcm_parser_channel[0].FillAudioDescriptor (audio_desc);
- audio_desc.ChannelCount = 0;
- audio_desc.BlockAlign = 0;
- audio_desc.EditRate = asdcp_fps;
- audio_desc.AvgBps = audio_desc.AvgBps * files.size ();
-
- ASDCP::PCM::FrameBuffer frame_buffer_channel[files.size()];
- ASDCP::PCM::AudioDescriptor audio_desc_channel[files.size()];
-
- int j = 0;
- for (list<string>::const_iterator i = files.begin(); i != files.end(); ++i) {
-
- if (ASDCP_FAILURE (pcm_parser_channel[j].OpenRead (i->c_str(), asdcp_fps))) {
- throw runtime_error ("could not open WAV file for reading");
- }
- pcm_parser_channel[j].FillAudioDescriptor (audio_desc_channel[j]);
- frame_buffer_channel[j].Capacity (ASDCP::PCM::CalcFrameBufferSize (audio_desc_channel[j]));
+ ASDCP::PCM::AudioDescriptor desc;
+ if (ASDCP_FAILURE (reader.FillAudioDescriptor (desc))) {
+ boost::throw_exception (DCPReadError ("could not read audio MXF information"));
+ }
+
+ _sampling_rate = desc.AudioSamplingRate.Numerator / desc.AudioSamplingRate.Denominator;
+ _channels = desc.ChannelCount;
+ _edit_rate = Fraction (desc.EditRate.Numerator, desc.EditRate.Denominator);
+
+ _intrinsic_duration = desc.ContainerDuration;
+
+ ASDCP::WriterInfo info;
+ if (ASDCP_FAILURE (reader.FillWriterInfo (info))) {
+ boost::throw_exception (DCPReadError ("could not read audio MXF information"));
+ }
+
+ _id = read_writer_info (info);
+}
+
+SoundAsset::SoundAsset (Fraction edit_rate, int sampling_rate, int channels)
+ : _edit_rate (edit_rate)
+ , _intrinsic_duration (0)
+ , _channels (channels)
+ , _sampling_rate (sampling_rate)
+{
+
+}
- audio_desc.ChannelCount += audio_desc_channel[j].ChannelCount;
- audio_desc.BlockAlign += audio_desc_channel[j].BlockAlign;
- ++j;
+bool
+SoundAsset::equals (shared_ptr<const Asset> other, EqualityOptions opt, NoteHandler note) const
+{
+ ASDCP::PCM::MXFReader reader_A;
+ DCP_ASSERT (file ());
+ Kumu::Result_t r = reader_A.OpenRead (file()->string().c_str());
+ if (ASDCP_FAILURE (r)) {
+ boost::throw_exception (MXFFileError ("could not open MXF file for reading", file()->string(), r));
}
- ASDCP::PCM::FrameBuffer frame_buffer;
- frame_buffer.Capacity (ASDCP::PCM::CalcFrameBufferSize (audio_desc));
- frame_buffer.Size (ASDCP::PCM::CalcFrameBufferSize (audio_desc));
+ ASDCP::PCM::MXFReader reader_B;
+ r = reader_B.OpenRead (other->file()->string().c_str());
+ if (ASDCP_FAILURE (r)) {
+ boost::throw_exception (MXFFileError ("could not open MXF file for reading", other->file()->string(), r));
+ }
- ASDCP::WriterInfo writer_info;
- fill_writer_info (&writer_info);
+ ASDCP::PCM::AudioDescriptor desc_A;
+ if (ASDCP_FAILURE (reader_A.FillAudioDescriptor (desc_A))) {
+ boost::throw_exception (DCPReadError ("could not read audio MXF information"));
+ }
+ ASDCP::PCM::AudioDescriptor desc_B;
+ if (ASDCP_FAILURE (reader_B.FillAudioDescriptor (desc_B))) {
+ boost::throw_exception (DCPReadError ("could not read audio MXF information"));
+ }
- ASDCP::PCM::MXFWriter mxf_writer;
- if (ASDCP_FAILURE (mxf_writer.OpenWrite (_mxf_path.c_str(), writer_info, audio_desc))) {
- throw runtime_error ("could not open audio MXF for writing");
+ if (desc_A.EditRate != desc_B.EditRate) {
+ note (
+ DCP_ERROR,
+ String::compose (
+ "audio edit rates differ: %1/%2 cf %3/%4",
+ desc_A.EditRate.Numerator, desc_A.EditRate.Denominator, desc_B.EditRate.Numerator, desc_B.EditRate.Denominator
+ )
+ );
+ return false;
+ } else if (desc_A.AudioSamplingRate != desc_B.AudioSamplingRate) {
+ note (
+ DCP_ERROR,
+ String::compose (
+ "audio sampling rates differ: %1 cf %2",
+ desc_A.AudioSamplingRate.Numerator, desc_A.AudioSamplingRate.Denominator,
+ desc_B.AudioSamplingRate.Numerator, desc_B.AudioSamplingRate.Numerator
+ )
+ );
+ return false;
+ } else if (desc_A.Locked != desc_B.Locked) {
+ note (DCP_ERROR, String::compose ("audio locked flags differ: %1 cf %2", desc_A.Locked, desc_B.Locked));
+ return false;
+ } else if (desc_A.ChannelCount != desc_B.ChannelCount) {
+ note (DCP_ERROR, String::compose ("audio channel counts differ: %1 cf %2", desc_A.ChannelCount, desc_B.ChannelCount));
+ return false;
+ } else if (desc_A.QuantizationBits != desc_B.QuantizationBits) {
+ note (DCP_ERROR, String::compose ("audio bits per sample differ: %1 cf %2", desc_A.QuantizationBits, desc_B.QuantizationBits));
+ return false;
+ } else if (desc_A.BlockAlign != desc_B.BlockAlign) {
+ note (DCP_ERROR, String::compose ("audio bytes per sample differ: %1 cf %2", desc_A.BlockAlign, desc_B.BlockAlign));
+ return false;
+ } else if (desc_A.AvgBps != desc_B.AvgBps) {
+ note (DCP_ERROR, String::compose ("audio average bps differ: %1 cf %2", desc_A.AvgBps, desc_B.AvgBps));
+ return false;
+ } else if (desc_A.LinkedTrackID != desc_B.LinkedTrackID) {
+ note (DCP_ERROR, String::compose ("audio linked track IDs differ: %1 cf %2", desc_A.LinkedTrackID, desc_B.LinkedTrackID));
+ return false;
+ } else if (desc_A.ContainerDuration != desc_B.ContainerDuration) {
+ note (DCP_ERROR, String::compose ("audio container durations differ: %1 cf %2", desc_A.ContainerDuration, desc_B.ContainerDuration));
+ return false;
+ } else if (desc_A.ChannelFormat != desc_B.ChannelFormat) {
+ /* XXX */
}
- for (int i = 0; i < _length; ++i) {
+ shared_ptr<const SoundAsset> other_sound = dynamic_pointer_cast<const SoundAsset> (other);
- byte_t *data_s = frame_buffer.Data();
- byte_t *data_e = data_s + frame_buffer.Capacity();
- byte_t sample_size = ASDCP::PCM::CalcSampleSize (audio_desc_channel[0]);
- int offset = 0;
+ shared_ptr<const SoundAssetReader> reader = start_read ();
+ shared_ptr<const SoundAssetReader> other_reader = other_sound->start_read ();
- for (list<string>::size_type j = 0; j < files.size(); ++j) {
- memset (frame_buffer_channel[j].Data(), 0, frame_buffer_channel[j].Capacity());
- if (ASDCP_FAILURE (pcm_parser_channel[j].ReadFrame (frame_buffer_channel[j]))) {
- throw runtime_error ("could not read audio frame");
- }
-
- if (frame_buffer_channel[j].Size() != frame_buffer_channel[j].Capacity()) {
- throw runtime_error ("short audio frame");
- }
- }
+ for (int i = 0; i < _intrinsic_duration; ++i) {
- while (data_s < data_e) {
- for (list<string>::size_type j = 0; j < files.size(); ++j) {
- byte_t* frame = frame_buffer_channel[j].Data() + offset;
- memcpy (data_s, frame, sample_size);
- data_s += sample_size;
- }
- offset += sample_size;
- }
+ shared_ptr<const SoundFrame> frame_A = reader->get_frame (i);
+ shared_ptr<const SoundFrame> frame_B = other_reader->get_frame (i);
- if (ASDCP_FAILURE (mxf_writer.WriteFrame (frame_buffer, 0, 0))) {
- throw runtime_error ("could not write audio MXF frame");
+ if (frame_A->size() != frame_B->size()) {
+ note (DCP_ERROR, String::compose ("sizes of audio data for frame %1 differ", i));
+ return false;
}
- Progress (float (i) / _length);
+ if (memcmp (frame_A->data(), frame_B->data(), frame_A->size()) != 0) {
+ for (int i = 0; i < frame_A->size(); ++i) {
+ int const d = abs (frame_A->data()[i] - frame_B->data()[i]);
+ if (d > opt.max_audio_sample_error) {
+ note (DCP_ERROR, String::compose ("PCM data difference of %1", d));
+ return false;
+ }
+ }
+ }
}
- if (ASDCP_FAILURE (mxf_writer.Finalize())) {
- throw runtime_error ("could not finalise audio MXF");
- }
+ return true;
+}
- _digest = make_digest (_mxf_path);
+shared_ptr<SoundAssetWriter>
+SoundAsset::start_write (boost::filesystem::path file, Standard standard)
+{
+ /* XXX: can't we use a shared_ptr here? */
+ return shared_ptr<SoundAssetWriter> (new SoundAssetWriter (this, file, standard));
}
-/** Write details of this asset to a CPL stream.
- * @param s Stream.
- */
+shared_ptr<SoundAssetReader>
+SoundAsset::start_read () const
+{
+ return shared_ptr<SoundAssetReader> (new SoundAssetReader (this, key ()));
+}
-void
-SoundAsset::write_to_cpl (ostream& s) const
+string
+SoundAsset::pkl_type (Standard standard) const
{
- s << " <MainSound>\n"
- << " <Id>urn:uuid:" << _uuid << "</Id>\n"
- << " <AnnotationText>" << filesystem::path(_mxf_path).filename() << "</AnnotationText>\n"
- << " <EditRate>" << _fps << " 1</EditRate>\n"
- << " <IntrinsicDuration>" << _length << "</IntrinsicDuration>\n"
- << " <EntryPoint>0</EntryPoint>\n"
- << " <Duration>" << _length << "</Duration>\n"
- << " </MainSound>\n";
+ switch (standard) {
+ case INTEROP:
+ return "application/x-smpte-mxf;asdcpKind=Sound";
+ case SMPTE:
+ return "application/mxf";
+ default:
+ DCP_ASSERT (false);
+ }
}
+bool
+SoundAsset::valid_mxf (boost::filesystem::path file)
+{
+ ASDCP::PCM::MXFReader reader;
+ Kumu::Result_t r = reader.OpenRead (file.string().c_str ());
+ return !ASDCP_FAILURE (r);
+}