1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
|
/*
Copyright (C) 2012-2020 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.
*/
/** @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/AS_DCP.h>
#include <asdcp/KM_fileio.h>
#include <asdcp/Metadata.h>
#include <libxml++/nodes/element.h>
#include <boost/filesystem.hpp>
#include <stdexcept>
using std::string;
using std::vector;
using std::list;
using boost::shared_ptr;
using boost::dynamic_pointer_cast;
using namespace dcp;
SoundAsset::SoundAsset (boost::filesystem::path file)
: Asset (file)
/* XXX: this is a fallback language, which will be used if we can't find the RFC5646SpokenLanguage
* in the MXF header. Perhaps RFC5646SpokenLanguage is optional and we should just not write it
* if we don't know it.
*/
, _language ("en-US")
{
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 desc;
if (ASDCP_FAILURE (reader.FillAudioDescriptor (desc))) {
boost::throw_exception (ReadError ("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 (ReadError ("could not read audio MXF information"));
}
ASDCP::MXF::SoundfieldGroupLabelSubDescriptor* soundfield;
ASDCP::Result_t rr = reader.OP1aHeader().GetMDObjectByType(
asdcp_smpte_dict->ul(ASDCP::MDD_SoundfieldGroupLabelSubDescriptor),
reinterpret_cast<ASDCP::MXF::InterchangeObject**>(&soundfield)
);
if (KM_SUCCESS(rr)) {
if (!soundfield->RFC5646SpokenLanguage.empty()) {
char buffer[64];
soundfield->RFC5646SpokenLanguage.get().EncodeString(buffer, sizeof(buffer));
_language = dcp::LanguageTag (buffer);
}
}
_id = read_writer_info (info);
}
SoundAsset::SoundAsset (Fraction edit_rate, int sampling_rate, int channels, LanguageTag language, Standard standard)
: MXF (standard)
, _edit_rate (edit_rate)
, _intrinsic_duration (0)
, _channels (channels)
, _sampling_rate (sampling_rate)
, _language (language)
{
}
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::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::PCM::AudioDescriptor desc_A;
if (ASDCP_FAILURE (reader_A.FillAudioDescriptor (desc_A))) {
boost::throw_exception (ReadError ("could not read audio MXF information"));
}
ASDCP::PCM::AudioDescriptor desc_B;
if (ASDCP_FAILURE (reader_B.FillAudioDescriptor (desc_B))) {
boost::throw_exception (ReadError ("could not read audio MXF information"));
}
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 */
}
shared_ptr<const SoundAsset> other_sound = dynamic_pointer_cast<const SoundAsset> (other);
shared_ptr<const SoundAssetReader> reader = start_read ();
shared_ptr<const SoundAssetReader> other_reader = other_sound->start_read ();
for (int i = 0; i < _intrinsic_duration; ++i) {
shared_ptr<const SoundFrame> frame_A = reader->get_frame (i);
shared_ptr<const SoundFrame> frame_B = other_reader->get_frame (i);
if (frame_A->size() != frame_B->size()) {
note (DCP_ERROR, String::compose ("sizes of audio data for frame %1 differ", i));
return false;
}
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;
}
}
}
}
return true;
}
shared_ptr<SoundAssetWriter>
SoundAsset::start_write (boost::filesystem::path file, vector<Channel> active_channels, bool atmos_sync)
{
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, active_channels, atmos_sync));
}
shared_ptr<SoundAssetReader>
SoundAsset::start_read () const
{
return shared_ptr<SoundAssetReader> (new SoundAssetReader (this, key(), standard()));
}
string
SoundAsset::static_pkl_type (Standard standard)
{
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);
}
|
