Asset -> MXF in some cases.

1 files changed, 0 insertions, 269 deletions

diff --git a/src/sound_asset.cc b/src/sound_asset.cc
deleted file mode 100644
index 5a1ce06b..00000000
--- a/src/sound_asset.cc
+++ /dev/null
@@ -1,269 +0,0 @@
-/*
-    Copyright (C) 2012 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
-    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,
-    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.
-
-*/
-
-/** @file  src/sound_asset.cc
- *  @brief An asset made up of WAV files
- */
-
-#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_asset.h"
-#include "util.h"
-#include "exceptions.h"
-#include "sound_frame.h"
-
-using std::string;
-using std::stringstream;
-using std::ostream;
-using std::vector;
-using std::list;
-using boost::shared_ptr;
-using boost::lexical_cast;
-using namespace dcp;
-
-SoundAsset::SoundAsset (boost::filesystem::path directory, boost::filesystem::path mxf_name)
-	: MXFAsset (directory, mxf_name)
-	, _channels (0)
-	, _sampling_rate (0)
-{
-
-}
-
-void
-SoundAsset::read ()
-{
-	ASDCP::PCM::MXFReader reader;
-	Kumu::Result_t r = reader.OpenRead (path().string().c_str());
-	if (ASDCP_FAILURE (r)) {
-		boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string(), r));
-	}
-
-	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 = desc.EditRate.Numerator;
-	assert (desc.EditRate.Denominator == 1);
-	_intrinsic_duration = desc.ContainerDuration;
-}
-
-string
-SoundAsset::cpl_node_name () const
-{
-	return "MainSound";
-}
-
-bool
-SoundAsset::equals (shared_ptr<const ContentAsset> other, EqualityOptions opt, boost::function<void (NoteType, string)> note) const
-{
-	if (!MXFAsset::equals (other, opt, note)) {
-		return false;
-	}
-		     
-	ASDCP::PCM::MXFReader reader_A;
-	Kumu::Result_t r = reader_A.OpenRead (path().string().c_str());
-	if (ASDCP_FAILURE (r)) {
-		boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string(), r));
-	}
-
-	ASDCP::PCM::MXFReader reader_B;
-	r = reader_B.OpenRead (other->path().string().c_str());
-	if (ASDCP_FAILURE (r)) {
-		boost::throw_exception (MXFFileError ("could not open MXF file for reading", path().string(), r));
-	}
-
-	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"));
-	}
-	
-	if (
-		desc_A.EditRate != desc_B.EditRate ||
-		desc_A.AudioSamplingRate != desc_B.AudioSamplingRate ||
-		desc_A.Locked != desc_B.Locked ||
-		desc_A.ChannelCount != desc_B.ChannelCount ||
-		desc_A.QuantizationBits != desc_B.QuantizationBits ||
-		desc_A.BlockAlign != desc_B.BlockAlign ||
-		desc_A.AvgBps != desc_B.AvgBps ||
-		desc_A.LinkedTrackID != desc_B.LinkedTrackID ||
-		desc_A.ContainerDuration != desc_B.ContainerDuration
-//		desc_A.ChannelFormat != desc_B.ChannelFormat ||
-		) {
-		
-		note (ERROR, "audio MXF picture descriptors differ");
-		return false;
-	}
-	
-	ASDCP::PCM::FrameBuffer buffer_A (1 * Kumu::Megabyte);
-	ASDCP::PCM::FrameBuffer buffer_B (1 * Kumu::Megabyte);
-	
-	for (int i = 0; i < _intrinsic_duration; ++i) {
-		if (ASDCP_FAILURE (reader_A.ReadFrame (i, buffer_A))) {
-			boost::throw_exception (DCPReadError ("could not read audio frame"));
-		}
-		
-		if (ASDCP_FAILURE (reader_B.ReadFrame (i, buffer_B))) {
-			boost::throw_exception (DCPReadError ("could not read audio frame"));
-		}
-		
-		if (buffer_A.Size() != buffer_B.Size()) {
-			note (ERROR, "sizes of audio data for frame " + lexical_cast<string>(i) + " differ");
-			return false;
-		}
-		
-		if (memcmp (buffer_A.RoData(), buffer_B.RoData(), buffer_A.Size()) != 0) {
-			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));
-					return false;
-				}
-			}
-		}
-	}
-
-	return true;
-}
-
-shared_ptr<const SoundFrame>
-SoundAsset::get_frame (int n) const
-{
-	/* XXX: should add on entry point here? */
-	return shared_ptr<const SoundFrame> (new SoundFrame (path().string(), n, _decryption_context));
-}
-
-shared_ptr<SoundAssetWriter>
-SoundAsset::start_write ()
-{
-	/* XXX: can't we use a shared_ptr here? */
-	return shared_ptr<SoundAssetWriter> (new SoundAssetWriter (this));
-}
-
-struct SoundAssetWriter::ASDCPState
-{
-	ASDCP::PCM::MXFWriter mxf_writer;
-	ASDCP::PCM::FrameBuffer frame_buffer;
-	ASDCP::WriterInfo writer_info;
-	ASDCP::PCM::AudioDescriptor audio_desc;
-	ASDCP::AESEncContext* encryption_context;
-};
-
-SoundAssetWriter::SoundAssetWriter (SoundAsset* a)
-	: _state (new SoundAssetWriter::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
-SoundAssetWriter::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
-SoundAssetWriter::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
-SoundAssetWriter::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
-SoundAsset::key_type () const
-{
-	return "MDAK";
-}