33#if defined _WIN32 && !defined __CYGWIN__
39#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
40 #include <sys/types.h>
44 #define __STDC_FORMAT_MACROS
48#if defined _MSC_VER || defined __MINGW32__ || defined __CYGWIN__ || defined __EMX__
55#if defined _MSC_VER || defined __BORLANDC__ || defined __MINGW32__
56 #if defined __BORLANDC__
59 #include <sys/utime.h>
62 #include <sys/types.h>
91namespace FlacNamespace
93#if JUCE_INCLUDE_FLAC_CODE || ! defined (JUCE_INCLUDE_FLAC_CODE)
95 #undef PACKAGE_VERSION
96 #define PACKAGE_VERSION "1.4.3"
98 #define FLAC__NO_DLL 1
100 JUCE_BEGIN_IGNORE_WARNINGS_MSVC (4267 4127 4244 4996 4100 4701 4702 4013 4133 4206 4312 4505 4365 4005 4334 181 111 6340 6308 6297 6001 6320)
102 #define HAVE_LROUND 1
106 #define FLAC__SYS_DARWIN 1
110 #define SIZE_MAX 0xffffffff
113 JUCE_BEGIN_IGNORE_WARNINGS_GCC_LIKE (
"-Wconversion",
114 "-Wdeprecated-register",
116 "-Wimplicit-fallthrough",
117 "-Wlanguage-extension-token",
123 "-Wzero-as-null-pointer-constant")
127 #define FLAC__CPU_IA32 1
130 #define FLAC__CPU_X86_64 1
132 #define FLAC__HAS_X86INTRIN 1
135 #if JUCE_ARM && JUCE_64BIT
136 #define FLAC__CPU_ARM64 1
138 #if JUCE_USE_ARM_NEON
139 #define FLAC__HAS_NEONINTRIN 1
140 #define FLAC__HAS_A64NEONINTRIN 1
144 #define flac_max jmax
145 #define flac_min jmin
147 #pragma push_macro ("DEBUG")
148 #pragma push_macro ("NDEBUG")
155 #include "flac/all.h"
156 #include "flac/libFLAC/bitmath.c"
157 #include "flac/libFLAC/bitreader.c"
158 #include "flac/libFLAC/bitwriter.c"
159 #include "flac/libFLAC/cpu.c"
160 #include "flac/libFLAC/crc.c"
161 #include "flac/libFLAC/fixed.c"
162 #include "flac/libFLAC/float.c"
163 #include "flac/libFLAC/format.c"
164 #include "flac/libFLAC/lpc_flac.c"
165 #include "flac/libFLAC/lpc_intrin_neon.c"
166 #include "flac/libFLAC/md5.c"
167 #include "flac/libFLAC/memory.c"
168 #include "flac/libFLAC/stream_decoder.c"
169 #include "flac/libFLAC/stream_encoder.c"
170 #include "flac/libFLAC/stream_encoder_framing.c"
171 #include "flac/libFLAC/window_flac.c"
173 #pragma pop_macro ("DEBUG")
174 #pragma pop_macro ("NDEBUG")
176 #undef PACKAGE_VERSION
178 JUCE_END_IGNORE_WARNINGS_GCC_LIKE
179 JUCE_END_IGNORE_WARNINGS_MSVC
182 #include <FLAC/all.h>
190static const char*
const flacFormatName =
"FLAC file";
192template <
typename Item>
196class FlacReader final :
public AudioFormatReader
199 FlacReader (InputStream* in) : AudioFormatReader (in, flacFormatName)
202 decoder = FlacNamespace::FLAC__stream_decoder_new();
204 ok = FLAC__stream_decoder_init_stream (decoder,
205 readCallback_, seekCallback_, tellCallback_, lengthCallback_,
206 eofCallback_, writeCallback_, metadataCallback_, errorCallback_,
207 this) == FlacNamespace::FLAC__STREAM_DECODER_INIT_STATUS_OK;
211 FLAC__stream_decoder_process_until_end_of_metadata (decoder);
213 if (lengthInSamples == 0 && sampleRate > 0)
217 scanningForLength =
true;
218 FLAC__stream_decoder_process_until_end_of_stream (decoder);
219 scanningForLength =
false;
220 auto tempLength = lengthInSamples;
222 FLAC__stream_decoder_reset (decoder);
223 FLAC__stream_decoder_process_until_end_of_metadata (decoder);
224 lengthInSamples = tempLength;
229 ~FlacReader()
override
231 FlacNamespace::FLAC__stream_decoder_delete (decoder);
234 void useMetadata (
const FlacNamespace::FLAC__StreamMetadata_StreamInfo& info)
236 sampleRate = info.sample_rate;
237 bitsPerSample = info.bits_per_sample;
238 lengthInSamples = (
unsigned int) info.total_samples;
239 numChannels = info.channels;
241 reservoir.setSize ((
int) numChannels, 2 * (int) info.max_blocksize,
false,
false,
true);
244 bool readSamples (
int*
const* destSamples,
int numDestChannels,
int startOffsetInDestBuffer,
245 int64 startSampleInFile,
int numSamples)
override
250 const auto getBufferedRange = [
this] {
return bufferedRange; };
252 const auto readFromReservoir = [
this, &destSamples, &numDestChannels, &startOffsetInDestBuffer, &startSampleInFile] (
const Range<int64> rangeToRead)
254 const auto bufferIndices = rangeToRead - bufferedRange.getStart();
255 const auto writePos = (int64) startOffsetInDestBuffer + (rangeToRead.getStart() - startSampleInFile);
257 for (
int i = jmin (numDestChannels, reservoir.getNumChannels()); --i >= 0;)
259 if (destSamples[i] !=
nullptr)
261 memcpy (destSamples[i] + writePos,
262 reservoir.getReadPointer (i) + bufferIndices.getStart(),
263 (
size_t) bufferIndices.getLength() * sizeof (
int));
268 const auto fillReservoir = [
this] (
const int64 requestedStart)
270 if (requestedStart >= lengthInSamples)
272 bufferedRange = emptyRange (requestedStart);
276 if (requestedStart < bufferedRange.getStart()
277 || jmax (bufferedRange.getEnd(), bufferedRange.getStart() + (int64) 511) < requestedStart)
281 bufferedRange = emptyRange (requestedStart & ~511);
282 FLAC__stream_decoder_seek_absolute (decoder, (FlacNamespace::FLAC__uint64) bufferedRange.getStart());
286 bufferedRange = emptyRange (bufferedRange.getEnd());
287 FLAC__stream_decoder_process_single (decoder);
290 const auto remainingSamples =
Reservoir::doBufferedRead (Range<int64> { startSampleInFile, startSampleInFile + numSamples },
295 if (! remainingSamples.isEmpty())
296 for (
int i = numDestChannels; --i >= 0;)
297 if (destSamples[i] !=
nullptr)
298 zeromem (destSamples[i] + startOffsetInDestBuffer + (remainingSamples.getStart() - startSampleInFile),
299 (
size_t) remainingSamples.getLength() * sizeof (
int));
304 void useSamples (
const FlacNamespace::FLAC__int32*
const buffer[],
int numSamples)
306 if (scanningForLength)
308 lengthInSamples += numSamples;
312 if (numSamples > reservoir.getNumSamples())
313 reservoir.setSize ((
int) numChannels, numSamples,
false,
false,
true);
315 auto bitsToShift = 32 - bitsPerSample;
317 for (
int i = 0; i < (int) numChannels; ++i)
319 auto* src = buffer[i];
322 while (src ==
nullptr && n > 0)
327 auto* dest =
reinterpret_cast<int*
> (reservoir.getWritePointer (i));
329 for (
int j = 0; j < numSamples; ++j)
330 dest[j] = src[j] << bitsToShift;
334 bufferedRange.setLength (numSamples);
339 static FlacNamespace::FLAC__StreamDecoderReadStatus readCallback_ (
const FlacNamespace::FLAC__StreamDecoder*, FlacNamespace::FLAC__byte buffer[],
size_t* bytes,
void* client_data)
341 *bytes = (size_t)
static_cast<const FlacReader*
> (client_data)->input->read (buffer, (
int) *bytes);
342 return FlacNamespace::FLAC__STREAM_DECODER_READ_STATUS_CONTINUE;
345 static FlacNamespace::FLAC__StreamDecoderSeekStatus seekCallback_ (
const FlacNamespace::FLAC__StreamDecoder*, FlacNamespace::FLAC__uint64 absolute_byte_offset,
void* client_data)
347 static_cast<const FlacReader*
> (client_data)->input->setPosition ((
int) absolute_byte_offset);
348 return FlacNamespace::FLAC__STREAM_DECODER_SEEK_STATUS_OK;
351 static FlacNamespace::FLAC__StreamDecoderTellStatus tellCallback_ (
const FlacNamespace::FLAC__StreamDecoder*, FlacNamespace::FLAC__uint64* absolute_byte_offset,
void* client_data)
353 *absolute_byte_offset = (uint64)
static_cast<const FlacReader*
> (client_data)->input->getPosition();
354 return FlacNamespace::FLAC__STREAM_DECODER_TELL_STATUS_OK;
357 static FlacNamespace::FLAC__StreamDecoderLengthStatus lengthCallback_ (
const FlacNamespace::FLAC__StreamDecoder*, FlacNamespace::FLAC__uint64* stream_length,
void* client_data)
359 *stream_length = (uint64)
static_cast<const FlacReader*
> (client_data)->input->getTotalLength();
360 return FlacNamespace::FLAC__STREAM_DECODER_LENGTH_STATUS_OK;
363 static FlacNamespace::FLAC__bool eofCallback_ (
const FlacNamespace::FLAC__StreamDecoder*,
void* client_data)
365 return static_cast<const FlacReader*
> (client_data)->input->isExhausted();
368 static FlacNamespace::FLAC__StreamDecoderWriteStatus writeCallback_ (
const FlacNamespace::FLAC__StreamDecoder*,
369 const FlacNamespace::FLAC__Frame* frame,
370 const FlacNamespace::FLAC__int32*
const buffer[],
373 static_cast<FlacReader*
> (client_data)->useSamples (buffer, (
int) frame->header.blocksize);
374 return FlacNamespace::FLAC__STREAM_DECODER_WRITE_STATUS_CONTINUE;
377 static void metadataCallback_ (
const FlacNamespace::FLAC__StreamDecoder*,
378 const FlacNamespace::FLAC__StreamMetadata* metadata,
381 static_cast<FlacReader*
> (client_data)->useMetadata (metadata->data.stream_info);
384 static void errorCallback_ (
const FlacNamespace::FLAC__StreamDecoder*, FlacNamespace::FLAC__StreamDecoderErrorStatus,
void*)
389 FlacNamespace::FLAC__StreamDecoder* decoder;
390 AudioBuffer<float> reservoir;
391 Range<int64> bufferedRange;
392 bool ok =
false, scanningForLength =
false;
394 JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FlacReader)
399class FlacWriter final :
public AudioFormatWriter
402 FlacWriter (OutputStream* out,
double rate, uint32 numChans, uint32 bits,
int qualityOptionIndex)
403 : AudioFormatWriter (out, flacFormatName, rate, numChans, bits),
404 streamStartPos (output != nullptr ? jmax (output->getPosition(), 0ll) : 0ll)
406 encoder = FlacNamespace::FLAC__stream_encoder_new();
408 if (qualityOptionIndex > 0)
409 FLAC__stream_encoder_set_compression_level (encoder, (uint32) jmin (8, qualityOptionIndex));
411 FLAC__stream_encoder_set_do_mid_side_stereo (encoder, numChannels == 2);
412 FLAC__stream_encoder_set_loose_mid_side_stereo (encoder, numChannels == 2);
413 FLAC__stream_encoder_set_channels (encoder, numChannels);
414 FLAC__stream_encoder_set_bits_per_sample (encoder, jmin ((
unsigned int) 24, bitsPerSample));
415 FLAC__stream_encoder_set_sample_rate (encoder, (
unsigned int) sampleRate);
416 FLAC__stream_encoder_set_blocksize (encoder, 0);
417 FLAC__stream_encoder_set_do_escape_coding (encoder,
true);
419 ok = FLAC__stream_encoder_init_stream (encoder,
420 encodeWriteCallback, encodeSeekCallback,
421 encodeTellCallback, encodeMetadataCallback,
422 this) == FlacNamespace::FLAC__STREAM_ENCODER_INIT_STATUS_OK;
425 ~FlacWriter()
override
429 FlacNamespace::FLAC__stream_encoder_finish (encoder);
438 FlacNamespace::FLAC__stream_encoder_delete (encoder);
442 bool write (
const int** samplesToWrite,
int numSamples)
override
447 HeapBlock<int*> channels;
449 auto bitsToShift = 32 - (int) bitsPerSample;
453 temp.malloc (numChannels * (
size_t) numSamples);
454 channels.calloc (numChannels + 1);
456 for (
unsigned int i = 0; i < numChannels; ++i)
458 if (samplesToWrite[i] ==
nullptr)
461 auto* destData = temp.get() + i * (size_t) numSamples;
462 channels[i] = destData;
464 for (
int j = 0; j < numSamples; ++j)
465 destData[j] = (samplesToWrite[i][j] >> bitsToShift);
468 samplesToWrite =
const_cast<const int**
> (channels.get());
471 return FLAC__stream_encoder_process (encoder, (
const FlacNamespace::FLAC__int32**) samplesToWrite, (
unsigned) numSamples) != 0;
474 bool writeData (
const void*
const data,
const int size)
const
476 return output->write (data, (
size_t) size);
479 static void packUint32 (FlacNamespace::FLAC__uint32 val, FlacNamespace::FLAC__byte* b,
const int bytes)
483 for (
int i = 0; i < bytes; ++i)
485 *(--b) = (FlacNamespace::FLAC__byte) (val & 0xff);
490 void writeMetaData (
const FlacNamespace::FLAC__StreamMetadata* metadata)
492 using namespace FlacNamespace;
493 auto& info = metadata->data.stream_info;
495 unsigned char buffer[FLAC__STREAM_METADATA_STREAMINFO_LENGTH];
496 const unsigned int channelsMinus1 = info.channels - 1;
497 const unsigned int bitsMinus1 = info.bits_per_sample - 1;
499 packUint32 (info.min_blocksize, buffer, 2);
500 packUint32 (info.max_blocksize, buffer + 2, 2);
501 packUint32 (info.min_framesize, buffer + 4, 3);
502 packUint32 (info.max_framesize, buffer + 7, 3);
503 buffer[10] = (uint8) ((info.sample_rate >> 12) & 0xff);
504 buffer[11] = (uint8) ((info.sample_rate >> 4) & 0xff);
505 buffer[12] = (uint8) (((info.sample_rate & 0x0f) << 4) | (channelsMinus1 << 1) | (bitsMinus1 >> 4));
506 buffer[13] = (FLAC__byte) (((bitsMinus1 & 0x0f) << 4) | (
unsigned int) ((info.total_samples >> 32) & 0x0f));
507 packUint32 ((FLAC__uint32) info.total_samples, buffer + 14, 4);
508 memcpy (buffer + 18, info.md5sum, 16);
510 [[maybe_unused]]
const bool seekOk = output->setPosition (streamStartPos + 4);
516 output->writeIntBigEndian (FLAC__STREAM_METADATA_STREAMINFO_LENGTH);
517 output->write (buffer, FLAC__STREAM_METADATA_STREAMINFO_LENGTH);
521 static FlacNamespace::FLAC__StreamEncoderWriteStatus encodeWriteCallback (
const FlacNamespace::FLAC__StreamEncoder*,
522 const FlacNamespace::FLAC__byte buffer[],
528 return static_cast<FlacWriter*
> (client_data)->writeData (buffer, (
int) bytes)
529 ? FlacNamespace::FLAC__STREAM_ENCODER_WRITE_STATUS_OK
530 : FlacNamespace::FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
533 static FlacNamespace::FLAC__StreamEncoderSeekStatus encodeSeekCallback (
const FlacNamespace::FLAC__StreamEncoder*, FlacNamespace::FLAC__uint64,
void*)
535 return FlacNamespace::FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED;
538 static FlacNamespace::FLAC__StreamEncoderTellStatus encodeTellCallback (
const FlacNamespace::FLAC__StreamEncoder*, FlacNamespace::FLAC__uint64* absolute_byte_offset,
void* client_data)
540 if (client_data ==
nullptr)
541 return FlacNamespace::FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED;
543 *absolute_byte_offset = (FlacNamespace::FLAC__uint64)
static_cast<FlacWriter*
> (client_data)->output->getPosition();
544 return FlacNamespace::FLAC__STREAM_ENCODER_TELL_STATUS_OK;
547 static void encodeMetadataCallback (
const FlacNamespace::FLAC__StreamEncoder*,
const FlacNamespace::FLAC__StreamMetadata* metadata,
void* client_data)
549 static_cast<FlacWriter*
> (client_data)->writeMetaData (metadata);
555 FlacNamespace::FLAC__StreamEncoder* encoder;
556 int64 streamStartPos;
558 JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FlacWriter)
563FlacAudioFormat::FlacAudioFormat() : AudioFormat (flacFormatName,
".flac") {}
564FlacAudioFormat::~FlacAudioFormat() {}
566Array<int> FlacAudioFormat::getPossibleSampleRates()
568 return { 8000, 11025, 12000, 16000, 22050, 32000, 44100, 48000,
569 88200, 96000, 176400, 192000, 352800, 384000 };
572Array<int> FlacAudioFormat::getPossibleBitDepths()
577bool FlacAudioFormat::canDoStereo() {
return true; }
578bool FlacAudioFormat::canDoMono() {
return true; }
579bool FlacAudioFormat::isCompressed() {
return true; }
581AudioFormatReader* FlacAudioFormat::createReaderFor (InputStream* in,
const bool deleteStreamIfOpeningFails)
583 std::unique_ptr<FlacReader> r (
new FlacReader (in));
585 if (r->sampleRate > 0)
588 if (! deleteStreamIfOpeningFails)
594AudioFormatWriter* FlacAudioFormat::createWriterFor (OutputStream* out,
596 unsigned int numberOfChannels,
598 const StringPairArray& ,
599 int qualityOptionIndex)
601 if (out !=
nullptr && getPossibleBitDepths().contains (bitsPerSample))
603 std::unique_ptr<FlacWriter> w (
new FlacWriter (out, sampleRate, numberOfChannels,
604 (uint32) bitsPerSample, qualityOptionIndex));
612StringArray FlacAudioFormat::getQualityOptions()
614 return {
"0 (Fastest)",
"1",
"2",
"3",
"4",
"5 (Default)",
"6",
"7",
"8 (Highest quality)" };
static constexpr Range emptyRange(const ValueType start) noexcept
static Range< Index > doBufferedRead(Range< Index > rangeToRead, GetBufferedRange &&getBufferedRange, ReadFromReservoir &&readFromReservoir, FillReservoir &&fillReservoir)