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// Copyright 2005-2019 The Mumble Developers. All rights reserved.
// Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file at the root of the
// Mumble source tree or at <https://www.mumble.info/LICENSE>.
#include "CELTCodec.h"
#include "Audio.h"
#include "Version.h"
#include "MumbleApplication.h"
#ifdef Q_CC_GNU
#define RESOLVE(var) { var = reinterpret_cast<__typeof__(var)>(qlCELT.resolve(#var)); bValid = bValid && (var != NULL); }
#else
#define RESOLVE(var) { * reinterpret_cast<void **>(&var) = static_cast<void *>(qlCELT.resolve(#var)); bValid = bValid && (var != NULL); }
#endif
#ifdef Q_OS_WIN
extern "C" {
void __cpuid(int a[4], int b);
};
#endif
CELTCodec::CELTCodec(const QString &celt_version) {
bValid = false;
cmMode = NULL;
qsVersion = celt_version;
iBitstreamVersion = INT_MIN;
qlCELT.setLoadHints(QLibrary::ResolveAllSymbolsHint);
QStringList alternatives;
#if defined(Q_OS_MAC)
alternatives << QString::fromLatin1("libcelt0.%1.dylib").arg(celt_version);
alternatives << QString::fromLatin1("celt0.%1.dylib").arg(celt_version);
alternatives << QString::fromLatin1("libcelt.%1.dylib").arg(celt_version);
alternatives << QString::fromLatin1("celt.%1.dylib").arg(celt_version);
#elif defined(Q_OS_UNIX)
alternatives << QString::fromLatin1("libcelt0.so.%1").arg(celt_version);
alternatives << QString::fromLatin1("libcelt.so.%1").arg(celt_version);
alternatives << QString::fromLatin1("celt.so.%1").arg(celt_version);
#else
int cpuinfo[4];
__cpuid(cpuinfo, 1);
if (cpuinfo[3] & 0x02000000) {
if (cpuinfo[3] & 0x04000000) {
if (cpuinfo[2] & 0x00000001) {
alternatives << QString::fromLatin1("celt0.%1.sse3.dll").arg(celt_version);
}
alternatives << QString::fromLatin1("celt0.%1.sse2.dll").arg(celt_version);
}
alternatives << QString::fromLatin1("celt0.%1.sse.dll").arg(celt_version);
}
alternatives << QString::fromLatin1("celt0.%1.dll").arg(celt_version);
#endif
foreach(const QString &lib, alternatives) {
qlCELT.setFileName(MumbleApplication::instance()->applicationVersionRootPath() + QLatin1String("/") + lib);
if (qlCELT.load()) {
bValid = true;
break;
}
#ifdef Q_OS_MAC
qlCELT.setFileName(QApplication::instance()->applicationDirPath() + QLatin1String("/../Codecs/") + lib);
if (qlCELT.load()) {
bValid = true;
break;
}
#endif
#ifdef PLUGIN_PATH
qlCELT.setFileName(QLatin1String(MUMTEXT(PLUGIN_PATH) "/") + lib);
if (qlCELT.load()) {
bValid = true;
break;
}
#endif
qlCELT.setFileName(lib);
if (qlCELT.load()) {
bValid = true;
break;
}
}
RESOLVE(celt_mode_destroy);
RESOLVE(celt_mode_info);
RESOLVE(celt_encoder_destroy);
RESOLVE(celt_encoder_ctl);
RESOLVE(celt_decoder_destroy);
RESOLVE(celt_decoder_ctl);
}
CELTCodec::~CELTCodec() {
if (cmMode)
celt_mode_destroy(const_cast<CELTMode *>(cmMode));
}
bool CELTCodec::isValid() const {
return bValid;
}
int CELTCodec::bitstreamVersion() const {
if (cmMode && iBitstreamVersion == INT_MIN)
celt_mode_info(cmMode, CELT_GET_BITSTREAM_VERSION, reinterpret_cast<celt_int32 *>(&iBitstreamVersion));
return iBitstreamVersion;
}
QString CELTCodec::version() const {
return qsVersion;
}
void CELTCodec::report() const {
qWarning("CELT bitstream %08x from %s", bitstreamVersion(), qPrintable(qlCELT.fileName()));
}
CELTCodec070::CELTCodec070(const QString &celt_version) : CELTCodec(celt_version) {
RESOLVE(celt_mode_create);
RESOLVE(celt_encoder_create);
RESOLVE(celt_decoder_create);
RESOLVE(celt_encode_float);
RESOLVE(celt_encode);
RESOLVE(celt_decode_float);
RESOLVE(celt_decode);
RESOLVE(celt_strerror);
if (bValid) {
cmMode = celt_mode_create(SAMPLE_RATE, SAMPLE_RATE / 100, NULL);
}
}
CELTEncoder *CELTCodec070::encoderCreate() {
return celt_encoder_create(cmMode, 1, NULL);
}
CELTDecoder *CELTCodec070::decoderCreate() {
return celt_decoder_create(cmMode, 1, NULL);
}
int CELTCodec070::encode(CELTEncoder *st, const celt_int16 *pcm, unsigned char *compressed, int nbCompressedBytes) {
return celt_encode(st, pcm, NULL, compressed, nbCompressedBytes);
}
int CELTCodec070::decode_float(CELTDecoder *st, const unsigned char *data, int len, float *pcm) {
return celt_decode_float(st, data, len, pcm);
}
CELTCodec011::CELTCodec011(const QString &celt_version) : CELTCodec(celt_version) {
RESOLVE(celt_mode_create);
RESOLVE(celt_encoder_create_custom);
RESOLVE(celt_decoder_create_custom);
RESOLVE(celt_encode_float);
RESOLVE(celt_encode);
RESOLVE(celt_decode_float);
RESOLVE(celt_decode);
RESOLVE(celt_strerror);
if (bValid) {
cmMode = celt_mode_create(SAMPLE_RATE, SAMPLE_RATE / 100, NULL);
}
}
CELTEncoder *CELTCodec011::encoderCreate() {
return celt_encoder_create_custom(cmMode, 1, NULL);
}
CELTDecoder *CELTCodec011::decoderCreate() {
return celt_decoder_create_custom(cmMode, 1, NULL);
}
int CELTCodec011::encode(CELTEncoder *st, const celt_int16 *pcm, unsigned char *compressed, int nbCompressedBytes) {
return celt_encode(st, pcm, SAMPLE_RATE / 100, compressed, nbCompressedBytes);
}
int CELTCodec011::decode_float(CELTDecoder *st, const unsigned char *data, int len, float *pcm) {
return celt_decode_float(st, data, len, pcm, SAMPLE_RATE / 100);
}
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