/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
*/
-/** @file src/sound_asset.cc
- * @brief An asset made up of WAV files
+/** @file src/sound_mxf.cc
+ * @brief SoundMXF class.
*/
-#include <iostream>
-#include <stdexcept>
-#include <boost/filesystem.hpp>
-#include <boost/lexical_cast.hpp>
-#include <libxml++/nodes/element.h>
-#include "KM_fileio.h"
-#include "AS_DCP.h"
#include "sound_mxf.h"
#include "util.h"
#include "exceptions.h"
#include "sound_frame.h"
+#include "sound_mxf_writer.h"
+#include "compose.hpp"
+#include "KM_fileio.h"
+#include "AS_DCP.h"
+#include <libxml++/nodes/element.h>
+#include <boost/filesystem.hpp>
+#include <iostream>
+#include <stdexcept>
using std::string;
using std::stringstream;
using std::vector;
using std::list;
using boost::shared_ptr;
-using boost::lexical_cast;
using namespace dcp;
-SoundMXF::SoundMXF (boost::filesystem::path directory, boost::filesystem::path mxf_name)
- : MXF (directory, mxf_name)
+SoundMXF::SoundMXF (boost::filesystem::path file)
+ : MXF (file)
, _channels (0)
, _sampling_rate (0)
-{
-
-}
-
-void
-SoundMXF::read ()
{
ASDCP::PCM::MXFReader reader;
- Kumu::Result_t r = reader.OpenRead (path().string().c_str());
+ 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", path().string(), r));
+ boost::throw_exception (MXFFileError ("could not open MXF file for reading", file.string(), r));
}
ASDCP::PCM::AudioDescriptor desc;
_sampling_rate = desc.AudioSamplingRate.Numerator / desc.AudioSamplingRate.Denominator;
_channels = desc.ChannelCount;
- _edit_rate = desc.EditRate.Numerator;
- assert (desc.EditRate.Denominator == 1);
+ _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"));
+ }
+
+ read_writer_info (info);
+
}
-string
-SoundMXF::cpl_node_name () const
+SoundMXF::SoundMXF (Fraction edit_rate, int sampling_rate, int channels)
+ : MXF (edit_rate)
+ , _channels (channels)
+ , _sampling_rate (sampling_rate)
{
- return "MainSound";
+
}
bool
-SoundMXF::equals (shared_ptr<const ContentAsset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
+SoundMXF::equals (shared_ptr<const Asset> other, EqualityOptions opt, NoteHandler note) const
{
if (!MXF::equals (other, opt, note)) {
return false;
}
ASDCP::PCM::MXFReader reader_A;
- Kumu::Result_t r = reader_A.OpenRead (path().string().c_str());
+ 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", path().string(), r));
+ boost::throw_exception (MXFFileError ("could not open MXF file for reading", file().string(), r));
}
ASDCP::PCM::MXFReader reader_B;
- r = reader_B.OpenRead (other->path().string().c_str());
+ r = reader_B.OpenRead (other->file().string().c_str());
if (ASDCP_FAILURE (r)) {
- boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string(), r));
+ boost::throw_exception (MXFFileError ("could not open MXF file for reading", file().string(), r));
}
ASDCP::PCM::AudioDescriptor desc_A;
// desc_A.ChannelFormat != desc_B.ChannelFormat ||
) {
- note (ERROR, "audio MXF picture descriptors differ");
+ note (DCP_ERROR, "audio MXF picture descriptors differ");
return false;
}
}
if (buffer_A.Size() != buffer_B.Size()) {
- note (ERROR, "sizes of audio data for frame " + lexical_cast<string>(i) + " differ");
+ note (DCP_ERROR, String::compose ("sizes of audio data for frame %1 differ", i));
return false;
}
for (uint32_t i = 0; i < buffer_A.Size(); ++i) {
int const d = abs (buffer_A.RoData()[i] - buffer_B.RoData()[i]);
if (d > opt.max_audio_sample_error) {
- note (ERROR, "PCM data difference of " + lexical_cast<string> (d));
+ note (DCP_ERROR, String::compose ("PCM data difference of %1", d));
return false;
}
}
SoundMXF::get_frame (int n) const
{
/* XXX: should add on entry point here? */
- return shared_ptr<const SoundFrame> (new SoundFrame (path().string(), n, _decryption_context));
+ return shared_ptr<const SoundFrame> (new SoundFrame (file(), n, _decryption_context));
}
shared_ptr<SoundMXFWriter>
-SoundMXF::start_write ()
+SoundMXF::start_write (boost::filesystem::path file, Standard standard)
{
/* XXX: can't we use a shared_ptr here? */
- return shared_ptr<SoundMXFWriter> (new SoundMXFWriter (this));
-}
-
-struct SoundMXFWriter::ASDCPState
-{
- ASDCP::PCM::MXFWriter mxf_writer;
- ASDCP::PCM::FrameBuffer frame_buffer;
- ASDCP::WriterInfo writer_info;
- ASDCP::PCM::AudioDescriptor audio_desc;
- ASDCP::AESEncContext* encryption_context;
-};
-
-SoundMXFWriter::SoundMXFWriter (SoundMXF* a)
- : _state (new SoundMXFWriter::ASDCPState)
- , _asset (a)
- , _finalized (false)
- , _frames_written (0)
- , _frame_buffer_offset (0)
-{
- _state->encryption_context = a->encryption_context ();
-
- /* Derived from ASDCP::Wav::SimpleWaveHeader::FillADesc */
- _state->audio_desc.EditRate = ASDCP::Rational (_asset->edit_rate(), 1);
- _state->audio_desc.AudioSamplingRate = ASDCP::Rational (_asset->sampling_rate(), 1);
- _state->audio_desc.Locked = 0;
- _state->audio_desc.ChannelCount = _asset->channels ();
- _state->audio_desc.QuantizationBits = 24;
- _state->audio_desc.BlockAlign = 3 * _asset->channels();
- _state->audio_desc.AvgBps = _asset->sampling_rate() * _state->audio_desc.BlockAlign;
- _state->audio_desc.LinkedTrackID = 0;
- _state->audio_desc.ChannelFormat = ASDCP::PCM::CF_NONE;
-
- _state->frame_buffer.Capacity (ASDCP::PCM::CalcFrameBufferSize (_state->audio_desc));
- _state->frame_buffer.Size (ASDCP::PCM::CalcFrameBufferSize (_state->audio_desc));
- memset (_state->frame_buffer.Data(), 0, _state->frame_buffer.Capacity());
-
- _asset->fill_writer_info (&_state->writer_info);
-
- Kumu::Result_t r = _state->mxf_writer.OpenWrite (_asset->path().string().c_str(), _state->writer_info, _state->audio_desc);
- if (ASDCP_FAILURE (r)) {
- boost::throw_exception (FileError ("could not open audio MXF for writing", _asset->path().string(), r));
- }
-}
-
-void
-SoundMXFWriter::write (float const * const * data, int frames)
-{
- for (int i = 0; i < frames; ++i) {
-
- byte_t* out = _state->frame_buffer.Data() + _frame_buffer_offset;
-
- /* Write one sample per channel */
- for (int j = 0; j < _asset->channels(); ++j) {
- int32_t const s = data[j][i] * (1 << 23);
- *out++ = (s & 0xff);
- *out++ = (s & 0xff00) >> 8;
- *out++ = (s & 0xff0000) >> 16;
- }
- _frame_buffer_offset += 3 * _asset->channels();
-
- assert (_frame_buffer_offset <= int (_state->frame_buffer.Capacity()));
-
- /* Finish the MXF frame if required */
- if (_frame_buffer_offset == int (_state->frame_buffer.Capacity())) {
- write_current_frame ();
- _frame_buffer_offset = 0;
- memset (_state->frame_buffer.Data(), 0, _state->frame_buffer.Capacity());
- }
- }
-}
-
-void
-SoundMXFWriter::write_current_frame ()
-{
- ASDCP::Result_t const r = _state->mxf_writer.WriteFrame (_state->frame_buffer, _state->encryption_context, 0);
- if (ASDCP_FAILURE (r)) {
- boost::throw_exception (MiscError ("could not write audio MXF frame (" + lexical_cast<string> (int (r)) + ")"));
- }
-
- ++_frames_written;
-}
-
-void
-SoundMXFWriter::finalize ()
-{
- if (_frame_buffer_offset > 0) {
- write_current_frame ();
- }
-
- if (ASDCP_FAILURE (_state->mxf_writer.Finalize())) {
- boost::throw_exception (MiscError ("could not finalise audio MXF"));
- }
-
- _finalized = true;
- _asset->set_intrinsic_duration (_frames_written);
- _asset->set_duration (_frames_written);
-}
-
-string
-SoundMXF::key_type () const
-{
- return "MDAK";
+ return shared_ptr<SoundMXFWriter> (new SoundMXFWriter (this, file, standard));
}
projects / libdcp.git / blobdiff