#include <PerfStat.h>#include <QtCore/QLoggingCategory> #include "OpusDecoder.h" static QLoggingCategory decoder("AthenaOpusDecoder"); static QString error_to_string(int error) { switch (error) { case OPUS_OK: return "OK"; case OPUS_BAD_ARG: return "One or more invalid/out of range arguments."; case OPUS_BUFFER_TOO_SMALL: return "The mode struct passed is invalid."; case OPUS_INTERNAL_ERROR: return "An internal error was detected."; case OPUS_INVALID_PACKET: return "The compressed data passed is corrupted."; case OPUS_UNIMPLEMENTED: return "Invalid/unsupported request number."; case OPUS_INVALID_STATE: return "An encoder or decoder structure is invalid or already freed."; default: return QString("Unknown error code: %i").arg(error); }} AthenaOpusDecoder::AthenaOpusDecoder(int sampleRate, int numChannels){ int error; _opus_sample_rate = sampleRate; _opus_num_channels = numChannels; _decoder = opus_decoder_create(sampleRate, numChannels, &error); if ( error != OPUS_OK ) { qCCritical(decoder) << "Failed to initialize Opus encoder: " << error_to_string(error); _decoder = nullptr; return; } qCDebug(decoder) << "Opus decoder initialized";} AthenaOpusDecoder::~AthenaOpusDecoder(){ if ( _decoder ) opus_decoder_destroy(_decoder); } void AthenaOpusDecoder::decode(const QByteArray &encodedBuffer, QByteArray &decodedBuffer){ assert(_decoder); PerformanceTimer perfTimer("AthenaOpusDecoder::decode"); decodedBuffer.resize( 65536 ); // Brute force, yeah! int frame_size = decodedBuffer.size() / _opus_num_channels / static_cast<int>(sizeof( opus_int16 )); int frames = opus_decode( _decoder, reinterpret_cast<const unsigned char*>(encodedBuffer.data()), encodedBuffer.length(), reinterpret_cast<opus_int16*>(decodedBuffer.data()), frame_size, 1 ); if ( frames >= 0 ) { qCDebug(decoder) << "Decoded " << frames << " Opus frames"; decodedBuffer.resize( frames * static_cast<int>(sizeof( opus_int16 )) * _opus_num_channels ); } else { qCCritical(decoder) << "Failed to decode audio: " << error_to_string(frames); } } void AthenaOpusDecoder::lostFrame(QByteArray &decodedBuffer){ assert(_decoder); PerformanceTimer perfTimer("AthenaOpusDecoder::lostFrame"); decodedBuffer.resize( 65536 ); // Brute force, yeah! int frame_size = decodedBuffer.size() / _opus_num_channels / static_cast<int>(sizeof( opus_int16 )); int frames = opus_decode( _decoder, nullptr, 0, reinterpret_cast<opus_int16*>(decodedBuffer.data()), frame_size, 1 ); if ( frames >= 0 ) { qCDebug(decoder) << "Produced " << frames << " opus frames from a lost frame"; decodedBuffer.resize( frames * static_cast<int>(sizeof( opus_int16 )) * _opus_num_channels ); } else { qCCritical(decoder) << "Failed to decode lost frame: " << error_to_string(frames); }}
#include <PerfStat.h>
#include <QtCore/QLoggingCategory>
#include "OpusDecoder.h"
static QLoggingCategory decoder("AthenaOpusDecoder");
static QString error_to_string(int error) {
switch (error) {
case OPUS_OK:
return "OK";
case OPUS_BAD_ARG:
return "One or more invalid/out of range arguments.";
case OPUS_BUFFER_TOO_SMALL:
return "The mode struct passed is invalid.";
case OPUS_INTERNAL_ERROR:
return "An internal error was detected.";
case OPUS_INVALID_PACKET:
return "The compressed data passed is corrupted.";
case OPUS_UNIMPLEMENTED:
return "Invalid/unsupported request number.";
case OPUS_INVALID_STATE:
return "An encoder or decoder structure is invalid or already freed.";
default:
return QString("Unknown error code: %i").arg(error);
}
}
AthenaOpusDecoder::AthenaOpusDecoder(int sampleRate, int numChannels)
{
int error;
_opus_sample_rate = sampleRate;
_opus_num_channels = numChannels;
_decoder = opus_decoder_create(sampleRate, numChannels, &error);
if ( error != OPUS_OK ) {
qCCritical(decoder) << "Failed to initialize Opus encoder: " << error_to_string(error);
_decoder = nullptr;
return;
}
qCDebug(decoder) << "Opus decoder initialized";
}
AthenaOpusDecoder::~AthenaOpusDecoder()
{
if ( _decoder )
opus_decoder_destroy(_decoder);
}
void AthenaOpusDecoder::decode(const QByteArray &encodedBuffer, QByteArray &decodedBuffer)
{
assert(_decoder);
PerformanceTimer perfTimer("AthenaOpusDecoder::decode");
decodedBuffer.resize( 65536 ); // Brute force, yeah!
int frame_size = decodedBuffer.size() / _opus_num_channels / static_cast<int>(sizeof( opus_int16 ));
int frames = opus_decode( _decoder, reinterpret_cast<const unsigned char*>(encodedBuffer.data()), encodedBuffer.length(), reinterpret_cast<opus_int16*>(decodedBuffer.data()), frame_size, 1 );
if ( frames >= 0 ) {
qCDebug(decoder) << "Decoded " << frames << " Opus frames";
decodedBuffer.resize( frames * static_cast<int>(sizeof( opus_int16 )) * _opus_num_channels );
} else {
qCCritical(decoder) << "Failed to decode audio: " << error_to_string(frames);
}
}
void AthenaOpusDecoder::lostFrame(QByteArray &decodedBuffer)
{
assert(_decoder);
PerformanceTimer perfTimer("AthenaOpusDecoder::lostFrame");
decodedBuffer.resize( 65536 ); // Brute force, yeah!
int frame_size = decodedBuffer.size() / _opus_num_channels / static_cast<int>(sizeof( opus_int16 ));
int frames = opus_decode( _decoder, nullptr, 0, reinterpret_cast<opus_int16*>(decodedBuffer.data()), frame_size, 1 );
if ( frames >= 0 ) {
qCDebug(decoder) << "Produced " << frames << " opus frames from a lost frame";
decodedBuffer.resize( frames * static_cast<int>(sizeof( opus_int16 )) * _opus_num_channels );
} else {
qCCritical(decoder) << "Failed to decode lost frame: " << error_to_string(frames);
}
}