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Rivendellaudio/lib/rdwavefile.h
Fred Gleason aa59fbb0f5 2019-05-03 Fred Gleason <fredg@paravelsystems.com> 
* Fixed a regression that broke audio importation in rdimport(1).
2019-05-03 15:42:40 -04:00

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// rdwavefile.h
//
// A class for handling Microsoft WAV files.
//
// (C) Copyright 2002-2018 Fred Gleason <fredg@paravelsystems.com>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU Library General Public License
// version 2 as published by the Free Software Foundation.
//
// 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.
//
//
#ifndef RDWAVEFILE_H
#define RDWAVEFILE_H
#include <vector>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <qobject.h>
#include <qstring.h>
#include <qdatetime.h>
#include <qfile.h>
#ifdef HAVE_VORBIS
#include <vorbis/vorbisfile.h>
#include <vorbis/vorbisenc.h>
#endif // HAVE_VORBIS
#include <rdmp4.h>
#include <rdwavedata.h>
#include <rdringbuffer.h>
#include <rdsettings.h>
//
// Number of timers allowed in the CartChunk structure.
// The official number is '8'.
//
#define MAX_TIMERS 8
//
// Define this if we should guesstimate the overall sample count
// of a MPEG file with a missing or zeroed 'fact' chunk. (Technically,
// such a file is invalid, but there are lots of them floating
// around out there nonetheless.) Otherwise, return '0' for the
// sample count.
//
#define MPEG_FACT_FUDGE
//
// The default mode bits for new WAV files.
//
#define WAVE_MODE_BITS 0644
/*
* Chunk Sizes
*/
#define FMT_CHUNK_SIZE 40
#define FACT_CHUNK_SIZE 4
#define CART_CHUNK_SIZE 2048
#define BEXT_CHUNK_SIZE 602
#define MEXT_CHUNK_SIZE 12
#define LEVL_CHUNK_SIZE 128
#define SCOT_CHUNK_SIZE 424
#define AV10_CHUNK_SIZE 512
#define AIR1_CHUNK_SIZE 2048
#define COMM_CHUNK_SIZE 18
#define RDXL_CHUNK_SIZE 4
//
// Maximum Header Size for ATX Files
#define MAX_ATX_HEADER_SIZE 512
//
// The size of the MPEG Ring Buffer
//
#define MPEG_BUFFER_SIZE 32768
//
// Default Values
//
#define DEFAULT_LEVL_FORMAT 2
#define DEFAULT_LEVL_POINTS 1
#define DEFAULT_LEVL_BLOCK_SIZE 1152
/**
* @short A class for handling Microsoft WAV files.
* @author Fred Gleason <fredg@wava.com>
*
* RDWaveFile provides an abstraction of a Microsoft RIFF-based WAV file.
* In addition to 'FMT' and 'DATA' chunks, chunk types of particular
* interest to broadcast applications are supported, including those
* specified by the Broadcast Wave File specification (EBU Tech Document
* 3285, with suppliments) and the CartChunk specification (currently
* proposed to become AES standard AES-46).
**/
class RDWaveFile
{
public:
enum Format {Pcm8=0,Pcm16=1,Float32=2,MpegL1=3,MpegL2=4,MpegL3=5,
DolbyAc2=6,DolbyAc3=7,Vorbis=8,Pcm24=9};
enum Type {Unknown=0,Wave=1,Mpeg=2,Ogg=3,Atx=4,Tmc=5,Flac=6,Ambos=7,
Aiff=8,M4A=9};
enum MpegID {NonMpeg=0,Mpeg1=1,Mpeg2=2};
/**
* Create an RDWaveFile object.
* @param file_name The name of the WAV file to load into the object.
**/
RDWaveFile(QString file_name="");
/**
* Destroy an RDWaveFile object.
**/
~RDWaveFile();
/**
* Get the file type.
**/
RDWaveFile::Type type() const;
/**
* Assign a WAV file name.
* @param file_name The WAV filename to assign.
**/
void nameWave(QString file_name);
/**
* Open the WAV file for recording. If the file already exists, it's
* prior contents will be overwritten. If not, a new file will be
* created.
*
* It is important that all desired meta-data chunks be enabled (using
* the set<name>Chunk() family of methods) before invoking createWav().
* Once the WAV file is created, new meta-data chunks cannot be added or
* removed, although the contents of existing ones can be updated.
* At a minimum, the 'FMT' chunk will need to have it's parameters
* (sample rate, channels, etc) defined, or this method will return an
* error.
*
* Returns true if WAV file was created successfully, otherwise false.
**/
bool createWave(RDWaveData *data=NULL,unsigned ptr_offset=0);
/**
* Open the WAV file for playback. A WAV file name must first have
* been assigned, either in the constructor or by means of nameWav().
*
* Setting 'allow_broken=true' will permit even patently-broken files
* (like the raw files from an AMR-100 receiver, that have no FMT chunk)
* to be opened to allow the metadata to be read.
**/
bool openWave(RDWaveData *data=NULL);
/**
* Close the WAV file. Any pending DATA chunk or meta-data writes
* will be applied, and DATA and FACT chunk size structures updated
* accordingly.
**/
void closeWave(int samples=-1);
/**
* Reset the record pointer on the WAV file to zero. Erases any audio
* data previously recorded, but otherwise leaves things (format settings,
* meta-data) as they were.
**/
void resetWave();
/**
* Returns true if the WAV file contains a FMT chunk, otherwise false.
**/
bool getFormatChunk() const;
/**
* Returns true if the WAV file contains a FACT chunk, otherwise false.
**/
bool getFactChunk() const;
/**
* Returns the length of the audio in samples.
**/
unsigned getSampleLength() const;
/**
* Returns the length of the audio in seconds.
**/
unsigned getTimeLength() const;
/**
* Returns the length of the audio in milliseconds.
**/
unsigned getExtTimeLength() const;
/**
* Returns true if the WAV file contains a DATA chunk, otherwise false.
**/
bool getDataChunk() const;
/**
* Returns the length of the contents of the DATA chunk, in bytes.
**/
unsigned getDataLength() const;
/**
* Read a block of data from the DATA chunk, using the current
* encoding type.
* @param buf The buffer in which to place the data.
* @param count The maximum number of bytes to transfer.
* Returns the number of bytes read.
**/
int readWave(void *buf,int count);
/**
* Write a block of data to the DATA chunk.
* @param buf The buffer from which to take the data.
* @param count The number of bytes to transfer.
* Returns the number of bytes written.
**/
int writeWave(void *buf,int count);
/**
* Set the DATA chunk file pointer.
* @param offset The value to which to set the pointer. The exact meaning
* depends upon the value of the 'whence' parameters, below:
* @param whence If SEEK_SET, set the file pointer to the value given
* in 'offset. If SEEK_CUR, set the pointer to the value given in 'offset',
* plus the current value.
* Returns If successful, return the current pointer position, relative to
* the start of the DATA chunk, otherwise -1.
**/
int seekWave(int offset,int whence);
void getSettings(RDSettings *settings);
void setSettings(const RDSettings *settings);
/**
* Returns true if energy data is available.
**/
bool hasEnergy();
/**
* Returns the size of the energy data, or zero if none available.
**/
unsigned energySize();
/**
* Returns energy data. For stereo files, this will be
* interleaved LEFT>>RIGHT>>LEFT>>... .
* @param frame The frame to reference.
**/
unsigned short energy(unsigned frame);
/**
* Read a block of energy data.
* @param buf The buffer in which to place the data.
* @param count The maximum number of bytes to transfer.
* Returns the number of bytes read.
**/
int readEnergy(unsigned short buf[],int count);
/**
* Find the first instance of energy at or above the specified level.
* @param level The level, in dbFS * 100.
* Returns: The location in samples from file start, or -1 to indicate
* failure.
**/
int startTrim(int level);
/**
* Find the last instance of energy at or above the specified level.
* @param level The level, in dbFS * 100.
* Returns: The location in samples from file start, or -1 to indicate
* failure.
**/
int endTrim(int level);
/**
* Returns the filename of the WAV file.
**/
QString getName() const;
/**
* Returns the FormatTag of the WAV file, as defined in the 'FMT' chunk.
* Values currently understood by RDWaveFile are:
* WAVE_FORMAT_PCM Linear PCM Data
* WAVE_FORMAT_IEEE_FLOAT IEEE Floating Point Data
* WAVE_FORMAT_MPEG MPEG-1 Encoded Data
**/
unsigned short getFormatTag() const;
/**
* Set the format tag in the FMT chunk for a WAV file to be recorded.
* Values currently understood by RDWaveFile are:
* WAVE_FORMAT_PCM Linear PCM Data
* WAVE_FORMAT_MPEG MPEG-1 Encoded Data
* @param format The encoding format.
**/
void setFormatTag(unsigned short format);
/**
* Returns the number of audio channels recorded in the WAV file, as
* represented by the 'FMT chunk.
**/
unsigned short getChannels() const;
/**
* Sets the number of channels in the FMT chunk for a WAV file to be
* recorded. Currently supported values are '1' or '2'.
* @param chan Number of channels.
**/
void setChannels(unsigned short chan);
/**
* Returns the sampling rate of the audio recorded in the WAV file, as
* represented by the 'FMT chunk, in samples per second.
**/
unsigned getSamplesPerSec() const;
/**
* Sets the sampling rate in the FMT chunk for a WAV file to be recorded.
* @param rate The sampling rate in samples per second.
**/
void setSamplesPerSec(unsigned rate);
/**
* Returns the average data rate of the audio recorded in the WAV file, as
* represented by the 'FMT chunk, in bytes per second.
**/
unsigned getAvgBytesPerSec() const;
/**
* Returns the 'atomic' sample size of the audio recorded in the WAV file,
* as represented by the 'FMT' chunk. In the case of a non-homogenous or
* bit-padded MPEG file, this will be set to '1'.
**/
unsigned short getBlockAlign() const;
/**
* Returns the bits per audio sample for PCM files, otherwise a '0'.
**/
unsigned short getBitsPerSample() const;
/**
* Set the number of bits per sample for PCM files in the FMT chunk
* for a WAV file to be recorded. For MPEG files, this should be set
* to '0'.
* @param bits Number of bits per audio sample, or '0' for an MPEG file.
**/
void setBitsPerSample(unsigned short bits);
/**
* Returns the MPEG-1 Layer (1, 2 or 3) for an MPEG-1 file, otherwise a '0'.
**/
unsigned short getHeadLayer() const;
/**
* Set the MPEG-1 Layer for MPEG files in the FMT chunk for a WAV file
* to be recorded. Layers 1, 2 and 3 are supported. For PCM files,
* this should be set to '0'.
* @param layer MPEG-1 encoding layer, or '0' for a PCM file.
**/
void setHeadLayer(unsigned short layer);
/**
* Returns the bit rate for an MPEG-1 file in bits per second, otherwise
* a '0'.
**/
unsigned getHeadBitRate() const;
/**
* Set the bit rate for an MPEG-1 file in the FMT chunk for a WAV file
* to be recorded. This needs to be one of the "official" rates as
* defined in the MPEG-1 standard. Valid rates are:
* LAYER 1: 32000, 64000, 96000,128000,160000,192000,224000,
* 256000,288000,320000,352000,384000,416000,448000
*
* LAYER 2: 32000, 48000, 56000, 64000, 80000, 96000,112000,
* 128000,160000,192000,224000,256000,320000,384000
*
* LAYER 3: 32000, 40000, 48000, 56000, 64000, 80000, 96000,
* 112000,128000,160000,192000,224000,256000,320000
*
* @param rate MPEG bitrate, in bits per second, or '0' for a PCM file.
**/
void setHeadBitRate(unsigned rate);
/**
* Returns the MPEG-1 Mode for an MPEG-1 file, otherwise a '0'. Possible
* modes are:
* ACM_MPEG_STEREO Stereo
* ACM_MPEG_JOINTSTEREO Joint Stereo
* ACM_MPEG_DUALCHANNEL Dual Channel
* ACM_MPEG_SINGLECHANNEL Mono
**/
unsigned short getHeadMode() const;
/**
* Set the MPEG-1 mode for an MPEG file in the FMT chunk for a WAV
* file to be recorded. This value is a series of flags bitwise-OR'd
* together. The corresponding flag should be set if one or more
* MPEG-1 frames in that mode are present in the audio data.
*
* Valid mode flags are:
* ACM_MPEG_STEREO Stereo
* ACM_MPEG_JOINTSTEREO Joint Stereo
* ACM_MPEG_DUALCHANNEL Dual Channel
* ACM_MPEG_SINGLECHANNEL Mono
*
* @param mode The bitwise-OR'd mode flags for MPEG files, or a '0' for PCM
* files.
**/
void setHeadMode(unsigned short mode);
/**
* Returns the extended mode flags for an MPEG-1 file, otherwise a '0'.
**/
unsigned getHeadModeExt() const;
/**
* Returns the request preemphasis for an MPEG-1 file, otherwise a '0'.
**/
unsigned getHeadEmphasis() const;
/**
* Returns the MPEG-1 flags for an MPEG-1 file, otherwise a '0'.
**/
unsigned short getHeadFlags() const;
/**
* Set the MPEG-1 flags for an MPEG file. All appropriate flags should
* be bitwise-OR'd together. Valid flags include:
* ACM_MPEG_PRIVATEBIT Private Bit
* ACM_MPEG_COPYRIGHT Copyright Bit
* ACM_MPEG_ORIGINALHOME Original Home Bit
* ACM_MPEG_PROTECTIONBIT Protection Bit
* ACM_MPEG_ID_MPEG1 MPEG-1 ID Bit
*
* @param flags The MPEG-1 flags to set.
**/
void setHeadFlags(unsigned short flags);
/**
* Not currently implemented.
**/
unsigned long getPTS() const;
/**
* Returns true if the WAV file contains a CART chunk, otherwise false.
**/
bool getCartChunk() const;
/**
* Enable a CartChunk structure. The default is to not create a
* CartChunk structure in the WAV file to be recorded. For more
* information on CartChunk and it's capabilities, see
* http://www.cartchunk.org/.
* @param state true = Enable cart chunk structure, false = disable
**/
void setCartChunk(bool state);
/**
* Returns the version of the CartChunk standard used in the WAV file.
**/
unsigned getCartVersion() const;
/**
* Returns the contents of the TITLE field in the WAV file's CART chunk.
**/
QString getCartTitle() const;
/**
* Set the TITLE field on the WAV file's CartChunk.
* @param string The value for the TITLE field.
**/
void setCartTitle(QString string);
/**
* Returns the contents of the ARTIST field in the WAV file's CART chunk.
**/
QString getCartArtist() const;
/**
* Set the ARTIST field on the WAV file's CartChunk.
* @param string The value for the ARTIST field.
**/
void setCartArtist(QString string);
/**
* Returns the contents of the CutID field in the WAV file's CART chunk.
**/
QString getCartCutID() const;
/**
* Set the CutID field on the WAV file's CartChunk.
* @param string The value for the CutID field.
**/
void setCartCutID(QString string);
/**
* Returns the contents of the ClientID field in the WAV file's CART chunk.
**/
QString getCartClientID() const;
/**
* Set the ClientID field on the WAV file's CartChunk.
* @param string The value for the ClientID field.
**/
void setCartClientID(QString string);
/**
* Returns the contents of the CATEGORY field in the WAV file's CART chunk.
**/
QString getCartCategory() const;
/**
* Set the Category field on the WAV file's CartChunk.
* @param string The value for the Category field.
**/
void setCartCategory(QString string);
/**
* Returns the contents of the CLASSIFICATION field in the WAV file's
* CART chunk.
**/
QString getCartClassification() const;
/**
* Set the Classification field on the WAV file's CartChunk.
* @param string The value for the Cclassification field.
**/
void setCartClassification(QString string);
/**
* Returns the contents of the OUTCUE field in the WAV file's CART chunk.
**/
QString getCartOutCue() const;
/**
* Set the OutCue field on the WAV file's CartChunk.
* @param string The value for the OutCue field.
**/
void setCartOutCue(QString string);
/**
* Returns the contents of the STARTDATE field in the WAV file's CART chunk.
**/
QDate getCartStartDate() const;
/**
* Set the StartDate field on the WAV file's CartChunk.
* @param date The value for the StartDate field.
**/
void setCartStartDate(QDate date);
/**
* Returns the contents of the STARTTIME field in the WAV file's CART chunk.
**/
QTime getCartStartTime() const;
/**
* Set the StartTime field on the WAV file's CartChunk.
* @param time The value for the StartTime field.
**/
void setCartStartTime(QTime time);
/**
* Returns the contents of the ENDDATE field in the WAV file's CART chunk.
**/
QDate getCartEndDate() const;
/**
* Set the EndDate field on the WAV file's CartChunk.
* @param date The value for the EndDate field.
**/
void setCartEndDate(QDate date);
/**
* Returns the contents of the ENDTIME field in the WAV file's CART chunk.
**/
QTime getCartEndTime() const;
/**
* Set the EndTime field on the WAV file's CartChunk.
* @param time The value for the EndTime field.
**/
void setCartEndTime(QTime time);
/**
* Returns the contents of the PRODUCER APPLICATION ID field in the WAV
* file's CART chunk.
**/
QString getCartProducerAppID() const;
/**
* Returns the contents of the PRODUCER APPLICATION VERSION field in the
* WAV file's CART chunk.
**/
QString getCartProducerAppVer() const;
/**
* Returns the contents of the USERDEF field in the WAV file's CART chunk.
**/
QString getCartUserDef() const;
/**
* Set the UserDef field on the WAV file's CartChunk.
* @param string The value for the UserRef field.
**/
void setCartUserDef(QString string);
/**
* Returns the contents of the LEVELREF field in the WAV file's CART chunk.
**/
unsigned getCartLevelRef() const;
/**
* Set the LevelRef field on the WAV file's CartChunk.
* @param level The value for the LevelRef field.
**/
void setCartLevelRef(unsigned level);
/**
* Retrieve the label for one of the eight CartChunk timers.
* @param index The index number of the timer to access (0 - 7).
* Returns the label of the corresponding timer.
**/
QString getCartTimerLabel(int index) const;
/**
* Retrieve the sample value for one of the eight CartChunk timers.
* @param index The index number of the timer to access (0 - 7).
* Returns the sample value of the corresponding timer.
**/
unsigned getCartTimerSample(int index) const;
/**
* Returns the contents of the URL field in the WAV file's CART chunk.
**/
QString getCartURL() const;
/**
* Set the URL field on the WAV file's CartChunk.
* @param string The value for the URL field.
**/
void setCartURL(QString string);
/**
* Returns the contents of the TAGTEXT field in the WAV file's CART chunk.
**/
QString getCartTagText() const;
/**
* Returns true if the WAV file contains a BEXT chunk, otherwise false.
**/
bool getBextChunk() const;
/**
* Enable a BWF Bext structure. The default is to not create a
* Bext structure in the WAV file to be recorded. For more
* information on the BWF format and it's capabilities, see
* http://www.sr.se/utveckling/tu/bwf/.
* @param state true = Enable Bext structure, false = disable
**/
void setBextChunk(bool state);
/**
* Returns the contents of the DESCRIPTION field in the WAV file's BEXT
* chunk.
**/
QString getBextDescription() const;
/**
* Set the Description field on the WAV file's Bext structure.
* @param string The value for the Description field.
**/
void setBextDescription(QString string);
/**
* Returns the contents of the ORIGINATOR field in the WAV file's BEXT
* chunk.
**/
QString getBextOriginator() const;
/**
* Set the Originator field on the WAV file's Bext structure.
* @param string The value for the Originator field.
**/
void setBextOriginator(QString string);
/**
* Returns the contents of the ORIGINATOR REFERENCE field in the WAV
* file's BEXT chunk.
**/
QString getBextOriginatorRef() const;
/**
* Set the Originator Reference field on the WAV file's Bext structure.
* @param string The value for the Originator Reference field.
**/
void setBextOriginatorRef(QString string);
/**
* Returns the contents of the ORIGINATION DATE field in the WAV file's BEXT
* chunk.
**/
QDate getBextOriginationDate() const;
/**
* Set the Origination Date field on the WAV file's Bext structure.
* @param date The value for the Origination Date field.
**/
void setBextOriginationDate(QDate date);
/**
* Returns the contents of the ORIGINATION TIME field in the WAV file's BEXT
* chunk.
**/
QTime getBextOriginationTime() const;
/**
* Set the Origination Time field on the WAV file's Bext structure.
* @param time The value for the Origination Time field.
**/
void setBextOriginationTime(QTime time);
/**
* Returns the lower 32 bits of the BWF Time Reference field.
**/
unsigned getBextTimeReferenceLow() const;
/**
* Sets the lower 32 bits of the BWF Time Reference field.
* @param sample The sample value for the lower 32 bits
**/
void setBextTimeReferenceLow(unsigned sample);
/**
* Returns the upper 32 bits of the BWF Time Reference field.
**/
unsigned getBextTimeReferenceHigh() const;
/**
* Sets the upper 32 bits of the BWF Time Reference field.
* @param sample The sample value for the upper 32 bits
**/
void setBextTimeReferenceHigh(unsigned sample);
/**
* Returns the version of the BWF standard used by the WAV file.
**/
unsigned short getBextVersion() const;
/**
* Gets the SMPTE Unique Material Identifier (UMD) in the WAV file's
* BEXT chunk. See SMPTE Standard 330M-2000 for more info.
* @param buf A 64 byte long buffer in which to place the UMD
**/
void getBextUMD(unsigned char *buf) const;
/**
* Sets the SMPTE Unique Material Identifier (UMD) in the WAV file's
* BEXT chunk. See SMPTE Standard 330M-2000 for more info.
* @param buf A 64 byte long buffer containing the UMD
**/
void setBextUMD(unsigned char *buf);
/**
* Returns the contents of the CODING HISTORY field from the WAV files'
* BEXT chunk.
**/
QString getBextCodingHistory() const;
/**
* Set the Coding History field on the WAV file's Bext structure.
* NOTE: This can only be set prior to calling createWave()! If
* called after createWave(), it will be silently ignored.
* @param string The value for the Coding History field.
**/
void setBextCodingHistory(QString string);
/**
* Returns true if the WAV file contains a MEXT chunk, otherwise false.
**/
bool getMextChunk() const;
/**
* Enable a BWF Mext structure. The default is to not create a
* Mext structure in the WAV file to be recorded. For more
* information on the BWF format and it's capabilities, see
* http://www.sr.se/utveckling/tu/bwf/.
* @param state true = Enable Mext structure, false = disable
**/
void setMextChunk(bool state);
/**
* Returns true if file is tagged as containing homogenous data, otherwise
* false.
**/
bool getMextHomogenous() const;
/**
* Returns true if the padding bit is used (and hence the MPEG frame size
* can vary between frames), otherwise false.
**/
bool getMextPaddingUsed() const;
/**
* Returns true if the file contains frames with the padding bits all
* set to '0' and a sample rate of 22.025 or 44.1 kHz. According to
* MPEG-1, such files are deprecated (because the overall bit rate is
* not one of the standard MPEG rates).
**/
bool getMextHackedBitRate() const;
/**
* Returns true if the file contains free format frames, otherwise false.
**/
bool getMextFreeFormat() const;
/**
* Returns the number of bytes in a frame for homogenous data, otherwise
* zero. If the padding bit is used, this will be the frame size for
* frames with the padding bit set to '0'. For frames with the padding
* bit set to '1', the frame size will be four bytes longer for Layer 1
* and one byte longer for Layer 2 and Layer 3.
**/
int getMextFrameSize() const;
/**
* Returns the minimal number of known bytes for ancillary data in the
* full sound file. The value is relative from the end of the audio frame.
**/
int getMextAncillaryLength() const;
/**
* Returns true if the ancillary data contains left or mono channel energy
* information, otherise false.
**/
bool getMextLeftEnergyPresent() const;
/**
* Returns true if the ancillary data contains right channel energy
* information, otherwise false.
**/
bool getMextRightEnergyPresent() const;
/**
* Returns true if the ancillary data contains private data, otherwise
* false.
**/
bool getMextPrivateDataPresent() const;
/**
* Set the BWF Mext structure in the WAV file to be recorded as containing
* homogenous or non-homogenous MPEG-1 data.
* @param state True = Data is homogenous, false = data is non-homogenous
**/
void setMextHomogenous(bool state);
/**
* Set the BWF Mext structure in the WAV file to be recorded to indicate
* the status of the MPEG-1 padding bit.
* @param state True = padding bit is used, false = padding bit is ignored
**/
void setMextPaddingUsed(bool state);
/**
* Set the BWF Mext structure in the WAV file to indicate frames with
* padding bits all set to '0' and a sample rate of 22.025 or 44.1 kHz.
* According to MPEG-1, such files are deprecated (because the overall
* bit rate is not one of the standard MPEG rates).
* @param state True = hacked bit rate used, false = proper bit rate used
**/
void setMextHackedBitRate(bool state);
/**
* Set the BWF Mext structure in the WAV file to be recorded to indicate
* free format MPEG-1 frame.
* @param state True = free format frames, false = constant bit rate frames
**/
void setMextFreeFormat(bool state);
/**
* Set the BWF Mext structure in the WAV file to be recorded to indicate
* the number of bytes in a frame for homogenous data, otherwise
* zero. If the padding bit is used, this will be the frame size for
* frames with the padding bit set to '0'. For frames with the padding
* bit set to '1', the frame size will be four bytes longer for Layer 1
* and one byte longer for Layer 2 and Layer 3.
**/
void setMextFrameSize(int size);
/**
* Set the BWF Mext structure in the WAV file to be recorded to indicate
* the minimal number of known bytes for ancillary data in the
* full sound file. The value is relative from the end of the audio frame.
**/
void setMextAncillaryLength(int length);
/**
* Set the BWF Mext structure in the WAV file to be recorded to indicate
* if the ancillary data contains left or mono channel energy
* information.
* @param state True = left energy data is present, false = is not present
**/
void setMextLeftEnergyPresent(bool state);
/**
* Set the BWF Mext structure in the WAV file to be recorded to indicate
* if the ancillary data contains rightchannel energy
* information.
* @param state True = right energy data is present, false = is not present
**/
void setMextRightEnergyPresent(bool state);
/**
* Set the BWF Mext structure in the WAV file to be recorded to indicate
* if the ancillary data contains private data.
* @param state True = private data present, false = no private data
**/
void setMextPrivateDataPresent(bool state);
/**
* Returns true if the WAV file contains a LEVL chunk, otherwise false.
**/
bool getLevlChunk() const;
/**
* Enable a BWF Levl structure. The default is to not create a
* Levl structure in the WAV file to be recorded. For more
* information on the BWF format and it's capabilities, see
* http://www.sr.se/utveckling/tu/bwf/.
* @param state true = Enable Levl structure, false = disable
**/
void setLevlChunk(bool state);
/**
* Get the version of the LEVL chunk data.
**/
int getLevlVersion() const;
/**
* Set the version of the LEVL chunk data.
* @param ver The version number to set.
**/
void setLevlVersion(unsigned ver);
/**
* Get the number of audio samples per peak value of the LEVL chunk.
**/
int getLevlBlockSize() const;
/**
* Set the block size of the LEVL chunk data.
* @param ver The block size to set.
**/
void setLevlBlockSize(unsigned size);
/**
* Get the number of channels of peak values.
**/
int getLevlChannels() const;
/**
* Get the 'peak-of-peaks' value.
**/
unsigned short getLevlPeak() const;
/**
* Get the timestamp of the LEVL chunk.
**/
QDateTime getLevlTimestamp() const;
/**
* Set the encoding quality (for OggVorbis only)
**/
void setEncodeQuality(float qual);
/**
* Get serial number (for OggVorbis only)
**/
int getSerialNumber() const;
/**
* Set serial number (for OggVorbis only)
**/
void setSerialNumber(int serial);
/**
* Returns true if the WAV file contains a SCOT chunk, otherwise false.
**/
bool getScotChunk() const;
bool getAIR1Chunk() const;
/**
* Returns true if the WAV file contains an RDXL chunk, otherwise false.
**/
bool getRdxlChunk() const;
QString getRdxlContents() const;
void setRdxlContents(const QString &xml);
double getNormalizeLevel() const;
void setNormalizeLevel(double level);
static QString formatText(Format fmt);
static QString typeText(Type type);
private:
RDWaveFile::Type GetType(int fd);
bool IsWav(int fd);
bool IsMpeg(int fd);
bool IsOgg(int fd);
bool IsAtx(int fd);
bool IsTmc(int fd);
bool IsFlac(int fd);
bool IsAiff(int fd);
bool IsM4A(int fd);
off_t FindChunk(int fd,const char *chunk_name,unsigned *chunk_size,
bool big_end=false);
bool GetChunk(int fd,const char *chunk_name,unsigned *chunk_size,
unsigned char *chunk,size_t size,bool big_end=false);
void WriteChunk(int fd,const char *cname,unsigned char *buf,unsigned size,
bool big_end=false);
void WriteChunk(int fd,const char *cname,const QString &contents);
bool GetFmt(int fd);
bool GetFact(int fd);
bool GetCart(int fd);
bool GetBext(int fd);
bool GetMext(int fd);
bool GetLevl(int fd);
bool GetList(int fd);
bool GetScot(int fd);
bool GetAv10(int fd);
bool GetAir1(int fd);
bool GetRdxl(int fd);
bool GetComm(int fd);
bool ReadListElement(unsigned char *buffer,unsigned *offset,unsigned size);
bool ReadTmcMetadata(int fd);
void ReadTmcTag(const QString tag,const QString value);
bool GetLine(int fd,char *buffer,int max_len);
void ReadId3Metadata();
bool GetMpegHeader(int fd,int offset);
int GetAtxOffset(int fd);
bool GetFlacStreamInfo();
void ReadFlacMetadata();
bool MakeFmt();
bool MakeCart(unsigned ptr_offset);
bool MakeBext();
bool MakeMext();
bool MakeLevl();
void WriteDword(unsigned char *,unsigned,unsigned);
void WriteSword(unsigned char *,unsigned,unsigned short);
unsigned ReadDword(unsigned char *,unsigned);
unsigned short ReadSword(unsigned char *,unsigned);
void GetEnergy();
unsigned LoadEnergy();
bool ReadNormalizeLevel(QString wave_file_name);
bool ReadEnergyFile(QString wave_file_name);
void GrowAlloc(size_t size);
void ValidateMetadata();
#ifdef HAVE_VORBIS
int WriteOggPage(ogg_page *page);
#endif // HAVE_VORBIS
int WriteOggBuffer(char *buf,int size);
unsigned FrameOffset(int msecs) const;
QString wave_file_name;
QFile wave_file;
RDWaveData *wave_data;
bool recordable; // Allow DATA chunk writes?
unsigned time_length; // Audio length in secs
unsigned ext_time_length; // Audio length in msec
bool format_chunk; // Does 'fmt ' chunk exist?
bool comm_chunk; // Does 'COMM' chunk exist?
unsigned char comm_chunk_data[COMM_CHUNK_SIZE];
unsigned short format_tag; // Encoding Format
unsigned short channels; // Number of channels
unsigned samples_per_sec; // Samples/sec/channel
unsigned avg_bytes_per_sec; // Average bytes/sec overall
unsigned short block_align; // Data block size
unsigned short bits_per_sample; // Bits per mono sample (PCM only)
unsigned short cb_size; // Number of bytes of extended data
unsigned short head_layer; // The MPEG audio layer
unsigned head_bit_rate; // MPEG bit rate, in byte/sec
unsigned short head_mode; // MPEG stream mode
unsigned head_mode_ext; // Extra mode parameters (for joint stereo)
unsigned head_emphasis; // De-emphasis
unsigned short head_flags; // MPEG header flags
unsigned long pts; // The MPEG PTS
unsigned ptr_offset_msecs;
RDWaveFile::MpegID mpeg_id;
int mpeg_frame_size;
bool id3v1_tag;
bool id3v2_tag[2];
unsigned id3v2_offset[2];
unsigned char fmt_chunk_data[FMT_CHUNK_SIZE];
int fmt_size; // Size of FMT chunk
bool fact_chunk; // Does 'fact' chunk exist?
unsigned sample_length; // Audio length in samples
unsigned char fact_chunk_data[FACT_CHUNK_SIZE];
bool data_chunk; // Does 'data' chunk exist?
int data_start; // Start position of WAV data
unsigned data_length; // Length of raw audio data
bool cart_chunk; // Does 'cart' chunk exist?
unsigned cart_version; // CartChunk Version field
QString cart_title; // CartChunk Title field
QString cart_artist; // CartChunk Artist field
QString cart_cut_id; // CartChunk CutID field
QString cart_client_id; // CartChunk ClientID field
QString cart_category; // CartChunk Category field
QString cart_classification; // CartChunk Classification field
QString cart_out_cue; // CartChunk OutCue Field
QDate cart_start_date; // CartChunk StartDate field
QTime cart_start_time; // CartChunk StartTime field
QDate cart_end_date; // CartChunk EndDate field
QTime cart_end_time; // CartChunk EndTime field
QString cart_producer_app_id; // CartChunk ProducerAppID field
QString cart_producer_app_ver; // CartChunk ProducerAppVersion field
QString cart_user_def; // CartChunk UserDef field
unsigned cart_level_ref; // CartChunk dwLevelReference field
QString cart_timer_label[MAX_TIMERS]; // CartChunk CartTimer labels
unsigned cart_timer_sample[MAX_TIMERS]; // CarChunk CartTimer samples
QString cart_url; // CartChunk URL field
QString cart_tag_text; // CartChunk TagText field
unsigned char cart_chunk_data[CART_CHUNK_SIZE];
bool bext_chunk; // Does the chunk exist?
QString bext_description; // BWF Description of sound sequence
QString bext_originator; // BWF Name of originator
QString bext_originator_ref; // BWF Reference of the originator
QDate bext_origination_date; // BWF Origination date
QTime bext_origination_time; // BWF Origination time
unsigned bext_time_reference_low; // BWF Sample count since midnight, low
unsigned bext_time_reference_high; // BWF Sample count since midnight, high
unsigned short bext_version; // BWF Version of the BWF
unsigned char bext_umid[64]; // BWF SMPTE UMD
QString bext_coding_history; // BWF Coding History
unsigned char bext_chunk_data[BEXT_CHUNK_SIZE];
unsigned char *bext_coding_data;
unsigned bext_coding_size;
bool mext_chunk; // Does the chunk exist?
bool mext_homogenous; // Is the data homogenous?
bool mext_padding_used; // Is the padding bit used?
bool mext_rate_hacked; // Is padding not used for a 22 or 44 sr?
bool mext_free_format; // Is it free format?
int mext_frame_size; // Size of MPEG frame, n/c padding
int mext_anc_length; // Ancillary data length
bool mext_left_energy; // Does anc data contain left/mono energy
bool mext_right_energy; // Does anc data contain right energy?
bool mext_ancillary_private; // Does anc data contain private data?
unsigned char mext_chunk_data[MEXT_CHUNK_SIZE];
bool has_energy; // Can we produce energy data?
unsigned char levl_chunk_data[LEVL_CHUNK_SIZE];
unsigned levl_size; // Size of LEVL chunk
bool levl_chunk; // Does LEVL chunk exist?
int levl_version; // Version
int levl_format; // Peak Data Format
int levl_points; // Points per Peak
int levl_block_size; // Frames per Peak Value
int levl_channels; // Channels
unsigned levl_frames; // Total Peaks
unsigned levl_peak_offset; // Pointer to peak-of-peaks
unsigned short levl_peak_value; // Value of peak-of-peaks
unsigned levl_block_offset; // Offset to start of peaks
QDateTime levl_timestamp; // Timestamp
unsigned short levl_block_ptr;
unsigned levl_istate;
short levl_accum;
QString cutString(char *,unsigned,unsigned);
QDate cutDate(char *,unsigned);
QTime cutTime(char *,unsigned);
std::vector<unsigned short> energy_data;
bool energy_loaded;
unsigned energy_ptr;
int wave_id;
RDWaveFile::Type wave_type;
unsigned char *cook_buffer;
int cook_buffer_size;
float encode_quality;
int serial_number;
int atx_offset;
bool scot_chunk;
unsigned char scot_chunk_data[SCOT_CHUNK_SIZE];
QString scot_title;
QString scot_artist;
QString scot_etc;
int scot_year;
QString scot_cut_number;
int scot_intro_length;
int scot_eom_length;
QDate scot_start_date;
QTime scot_start_time;
QDate scot_end_date;
QTime scot_end_time;
bool AIR1_chunk;
unsigned char AIR1_chunk_data[AIR1_CHUNK_SIZE];
bool rdxl_chunk;
QString rdxl_contents;
double normalize_level;
bool av10_chunk;
unsigned char av10_chunk_data[AV10_CHUNK_SIZE];
#ifdef HAVE_VORBIS
OggVorbis_File vorbis_file;
vorbis_info vorbis_inf;
vorbis_block vorbis_blk;
vorbis_dsp_state vorbis_dsp;
ogg_stream_state ogg_stream;
ogg_page ogg_pg;
ogg_packet ogg_pack;
#endif // HAVE_VORBIS
#ifdef HAVE_MP4_LIBS
DLMP4 dlmp4;
#endif
};
/*
* Cart Chunk Stuff
*/
#define CART_VERSION "0101"
#define CART_DEFAULT_END_YEAR 2099
#define CART_DEFAULT_END_MONTH 12
#define CART_DEFAULT_END_DAY 31
#define CART_DEFAULT_END_HOUR 23
#define CART_DEFAULT_END_MINUTE 59
#define CART_DEFAULT_END_SECOND 59
#define CART_DEFAULT_LEVEL_REF 0x8000
/*
* BWF Stuff
*/
#define BWF_VERSION 1
/*
* WAVE Format Categories
* (From RFC2361)
*/
#define WAVE_FORMAT_PCM 0x0001
#define WAVE_FORMAT_ADPCM 0x0002
#define WAVE_FORMAT_IEEE_FLOAT 0x0003
#define WAVE_FORMAT_VSELP 0x0004
#define WAVE_FORMAT_IBM_CVSD 0x0005
#define WAVE_FORMAT_ALAW 0x0006
#define WAVE_FORMAT_MULAW 0x0007
#define WAVE_FORMAT_OKI_ADPCM 0x0010
#define WAVE_FORMAT_DVI_ADPCM 0x0011
#define WAVE_FORMAT_MEDIASPACE_ADPCM 0x0012
#define WAVE_FORMAT_SIERRA_ADPCM 0x0013
#define WAVE_FORMAT_G723_ADPCM 0x0014
#define WAVE_FORMAT_DIGISTD 0x0015
#define WAVE_FORMAT_DIGIFIX 0x0016
#define WAVE_FORMAT_DIALOGIC_OKI_ADPCM 0x0017
#define WAVE_FORMAT_MEDIAVISION_ADPCM 0x0018
#define WAVE_FORMAT_CU_CODEC 0x0019
#define WAVE_FORMAT_YAMAHA_ADPCM 0x0020
#define WAVE_FORMAT_SONARC 0x0021
#define WAVE_FORMAT_DSPGROUP_TRUESPEECH 0x0022
#define WAVE_FORMAT_ECHOSC1 0x0023
#define WAVE_FORMAT_AUDIOFILE_AF36 0x0024
#define WAVE_FORMAT_APTX 0x0025
#define WAVE_FORMAT_AUDIOFILE_AF10 0x0026
#define WAVE_FORMAT_PROSODY_1612 0x0027
#define WAVE_FORMAT_LRC 0x0028
#define WAVE_FORMAT_DOLBY_AC2 0x0030
#define WAVE_FORMAT_GSM610 0x0031
#define WAVE_FORMAT_MSNAUDIO 0x0032
#define WAVE_FORMAT_ANTEX_ADPCME 0x0033
#define WAVE_FORMAT_CONTROL_RES_VQLPC 0x0034
#define WAVE_FORMAT_DIGIREAL 0x0035
#define WAVE_FORMAT_DIGIADPCM 0x0036
#define WAVE_FORMAT_CONTROL_RES_CR10 0x0037
#define WAVE_FORMAT_NMS_VBXADPCM 0x0038
#define WAVE_FORMAT_ROLAND_RDAC 0x0039
#define WAVE_FORMAT_ECHOSC3 0x003A
#define WAVE_FORMAT_ROCKWELL_ADPCM 0x003B
#define WAVE_FORMAT_ROCKWELL_DIGITALK 0x003C
#define WAVE_FORMAT_XEBEC 0x003D
#define WAVE_FORMAT_G721_ADPCM 0x0040
#define WAVE_FORMAT_G728_CELP 0x0041
#define WAVE_FORMAT_MSG723 0x0042
#define WAVE_FORMAT_MPEG 0x0050
#define WAVE_FORMAT_RT24 0x0052
#define WAVE_FORMAT_PAC 0x0053
#define WAVE_FORMAT_MPEGLAYER3 0x0055
#define WAVE_FORMAT_LUCENT_G723 0x0059
#define WAVE_FORMAT_CIRRUS 0x0060
#define WAVE_FORMAT_ESPCM 0x0061
#define WAVE_FORMAT_VOXWARE 0x0062
#define WAVE_FORMAT_CANOPUS_ATRAC 0x0063
#define WAVE_FORMAT_G726_ADPCM 0x0064
#define WAVE_FORMAT_G722_ADPCM 0x0065
#define WAVE_FORMAT_DSAT 0x0066
#define WAVE_FORMAT_DSAT_DISPLAY 0x0067
#define WAVE_FORMAT_VOXWARE_BYTE_ALIGNED 0x0069
#define WAVE_FORMAT_VOXWARE_AC8 0x0070
#define WAVE_FORMAT_VOXWARE_AC10 0x0071
#define WAVE_FORMAT_VOXWARE_AC16 0x0072
#define WAVE_FORMAT_VOXWARE_AC20 0x0073
#define WAVE_FORMAT_VOXWARE_RT24 0x0074
#define WAVE_FORMAT_VOXWARE_RT29 0x0075
#define WAVE_FORMAT_VOXWARE_RT29HW 0x0076
#define WAVE_FORMAT_VOXWARE_VR12 0x0077
#define WAVE_FORMAT_VOXWARE_VR18 0x0078
#define WAVE_FORMAT_VOXWARE_TQ40 0x0079
#define WAVE_FORMAT_SOFTSOUND 0x0080
#define WAVE_FORMAT_VOXWARE_TQ60 0x0081
#define WAVE_FORMAT_MSRT24 0x0082
#define WAVE_FORMAT_G729A 0x0083
#define WAVE_FORMAT_MVI_MV12 0x0084
#define WAVE_FORMAT_DF_G726 0x0085
#define WAVE_FORMAT_DF_GSM610 0x0086
#define WAVE_FORMAT_ISIAUDIO 0x0088
#define WAVE_FORMAT_ONLIVE 0x0089
#define WAVE_FORMAT_SBC24 0x0091
#define WAVE_FORMAT_DOLBY_AC3_SPDIF 0x0092
#define WAVE_FORMAT_ZYXEL_ADPCM 0x0097
#define WAVE_FORMAT_PHILIPS_LPCBB 0x0098
#define WAVE_FORMAT_PACKED 0x0099
#define WAVE_FORMAT_RHETOREX_ADPCM 0x0100
#define WAVE_FORMAT_IRAT 0x0101
#define WAVE_FORMAT_VIVO_G723 0x0111
#define WAVE_FORMAT_VIVO_SIREN 0x0112
#define WAVE_FORMAT_DIGITAL_G723 0x0123
#define WAVE_FORMAT_CREATIVE_ADPCM 0x0200
#define WAVE_FORMAT_CREATIVE_FASTSPEECH8 0x0202
#define WAVE_FORMAT_ CREATIVE_FASTSPEECH10 0x0203
#define WAVE_FORMAT_QUARTERDECK 0x0220
#define WAVE_FORMAT_FM_TOWNS_SND 0x0300
#define WAVE_FORMAT_BTV_DIGITAL 0x0400
#define WAVE_FORMAT_VME_VMPCM 0x0680
#define WAVE_FORMAT_OLIGSM 0x1000
#define WAVE_FORMAT_OLIADPCM 0x1001
#define WAVE_FORMAT_OLICELP 0x1002
#define WAVE_FORMAT_OLISBC 0x1003
#define WAVE_FORMAT_OLIOPR 0x1004
#define WAVE_FORMAT_LH_CODEC 0x1100
#define WAVE_FORMAT_NORRIS 0x1400
#define WAVE_FORMAT_ISIAUDIO2 0x1401
#define WAVE_FORMAT_SOUNDSPACE_MUSICOMPRESS 0x1500
#define WAVE_FORMAT_DVM 0x2000
/*
* OggVorbis/FLAC Formats
*
* FIXME: These are made up out of thin air -- if a real registered number
* exists, we should use that instead.
*/
#define WAVE_FORMAT_VORBIS 0xFFFF
#define WAVE_FORMAT_FLAC 0xFFFE
#define WAVE_FORMAT_M4A 0xFFFD
/*
* Proprietary Format Categories
* (Not supported)
*/
#define MS_FORMAT_ADPCM 0x0002
#define ITU_FORMAT_G711_ALAW 0x0006
#define ITU_FORMAT_G711_MLAW 0x0007
#define IMA_FORMAT_ADPCM 0x0011
#define ITU_FORMAT_G723_ADPCM 0x0016
#define GSM_FORMAT_610 0x0031
#define ITU_FORMAT_G721_ADPCM 0x0040
#define IBM_FORMAT_MULAW 0x0101
#define IBM_FORMAT_ALAW 0x0102
#define IBM_FORMAT_ADPCM 0x0103
/*
* MPEG Defines
*
* fwHeadLayer Flags
*/
#define ACM_MPEG_LAYER1 0x0001
#define ACM_MPEG_LAYER2 0x0002
#define ACM_MPEG_LAYER3 0x0004
/*
* fwHeadMode Flags
*/
#define ACM_MPEG_STEREO 0x0001
#define ACM_MPEG_JOINTSTEREO 0x0002
#define ACM_MPEG_DUALCHANNEL 0x0004
#define ACM_MPEG_SINGLECHANNEL 0x0008
/*
* fwHeadFlags Flags
*/
#define ACM_MPEG_PRIVATEBIT 0x0001
#define ACM_MPEG_COPYRIGHT 0x0002
#define ACM_MPEG_ORIGINALHOME 0x0004
#define ACM_MPEG_PROTECTIONBIT 0x0008
#define ACM_MPEG_ID_MPEG1 0x0010
#endif // RDWAVEFILE_H
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