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Add support for reading audio codecs #8

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111 changes: 108 additions & 3 deletions src/main/cpp/utils.h
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,24 @@
#include "fileref_ext.h"
#include "tpropertymap.h"

#include <aifffile.h>
#include <apefile.h>
#include <asffile.h>
#include <dsdifffile.h>
#include <dsffile.h>
#include <flacfile.h>
#include <mp4file.h>
#include <mpcfile.h>
#include <mpegfile.h>
#include <mod/modfile.h>
#include <opusfile.h>
#include <rifffile.h>
#include <speexfile.h>
#include <trueaudiofile.h>
#include <vorbisfile.h>
#include <wavfile.h>
#include <wavpackfile.h>

jclass stringClass = nullptr;

jclass hashMapClass = nullptr;
Expand Down Expand Up @@ -63,7 +81,7 @@ extern "C" JNIEXPORT jint JNI_OnLoad(JavaVM *vm, void *) {
jclass _audioPropertiesClass = env->FindClass("com/kyant/taglib/AudioProperties");
audioPropertiesClass = reinterpret_cast<jclass>(env->NewGlobalRef(_audioPropertiesClass));
env->DeleteLocalRef(_audioPropertiesClass);
audioPropertiesConstructor = env->GetMethodID(audioPropertiesClass, "<init>", "(IIII)V");
audioPropertiesConstructor = env->GetMethodID(audioPropertiesClass, "<init>", "(IIIILjava/lang/String;)V");

jclass _pictureClass = env->FindClass("com/kyant/taglib/Picture");
pictureClass = reinterpret_cast<jclass>(env->NewGlobalRef(_pictureClass));
Expand Down Expand Up @@ -297,11 +315,98 @@ jobject getAudioProperties(JNIEnv *env, const TagLibExt::FileRef &f) {
const jint bitrate = static_cast<jint>(audioProperties->bitrate());
const jint sampleRate = static_cast<jint>(audioProperties->sampleRate());
const jint channels = static_cast<jint>(audioProperties->channels());
jstring codec;

// common formats
if (dynamic_cast<TagLib::MPEG::File *>(f.file())) {
codec = env->NewStringUTF("mp3");
} else if (dynamic_cast<TagLib::Ogg::Opus::File *>(f.file())) {
codec = env->NewStringUTF("opus");
} else if (dynamic_cast<TagLib::RIFF::WAV::File *>(f.file())) {
codec = env->NewStringUTF("wav");
} else if (dynamic_cast<TagLib::FLAC::File *>(f.file())) {
codec = env->NewStringUTF("flac");
} else {
auto *mp4 = dynamic_cast<TagLib::MP4::File *>(f.file());
if (mp4) {
auto codecEnum = mp4->audioProperties()->codec();
const char* codecStr;

switch (codecEnum) {
case TagLib::MP4::Properties::AAC:
codecStr = "aac";
break;
case TagLib::MP4::Properties::ALAC:
codecStr = "alac";
break;
case TagLib::MP4::Properties::Unknown:
default:
codecStr = "Unknown";
break;
}

codec = env->NewStringUTF(codecStr);
} else if (dynamic_cast<TagLib::Ogg::Vorbis::File *>(f.file())) {
codec = env->NewStringUTF("vorbis");
// uncommon formats
} else if (dynamic_cast<TagLib::APE::File *>(f.file())) {
codec = env->NewStringUTF("ape");
} else {
ASF::File *asf = dynamic_cast<TagLib::ASF::File *>(f.file());
if (asf) {
auto codecEnum = asf->audioProperties()->codec();
const char* codecStr;

switch (codecEnum) {
case TagLib::ASF::Properties::WMA1:
codecStr = "wma1";
break;
case TagLib::ASF::Properties::WMA2:
codecStr = "wma2";
break;
case TagLib::ASF::Properties::WMA9Pro:
codecStr = "wm9pro";
break;
case TagLib::ASF::Properties::WMA9Lossless:
codecStr = "wma9lossless";
break;
case TagLib::ASF::Properties::Unknown:
default:
codecStr = "Unknown";
break;
}

codec = env->NewStringUTF(codecStr);
} else if (dynamic_cast<TagLib::DSDIFF::File *>(f.file())) {
codec = env->NewStringUTF("dsdiff");
} else if (dynamic_cast<TagLib::DSF::File *>(f.file())) {
codec = env->NewStringUTF("dsf");
} else if (dynamic_cast<TagLib::MPC::File *>(f.file())) {
codec = env->NewStringUTF("mpc");
} else if (dynamic_cast<TagLib::MPEG::File *>(f.file())) {
codec = env->NewStringUTF("mpeg");
} else if (dynamic_cast<TagLib::Mod::File *>(f.file())) {
codec = env->NewStringUTF("mod");
} else if (dynamic_cast<TagLib::Ogg::Speex::File *>(f.file())) {
codec = env->NewStringUTF("speex");
} else if (dynamic_cast<TagLib::RIFF::AIFF::File *>(f.file())) {
codec = env->NewStringUTF("riff");
} else if (dynamic_cast<TagLib::TrueAudio::File *>(f.file())) {
codec = env->NewStringUTF("trueaudio");
} else if (dynamic_cast<TagLib::WavPack::File *>(f.file())) {
codec = env->NewStringUTF("wavpack");
} else {
codec = env->NewStringUTF("Unknown");
}
}
}

return env->NewObject(
audioPropertiesClass, audioPropertiesConstructor,
duration, bitrate, sampleRate, channels);
duration, bitrate, sampleRate, channels, codec);
}
return env->NewObject(audioPropertiesClass, audioPropertiesConstructor, 0, 0, 0, 0);
jstring codecUnknown = env->NewStringUTF("Unknown");
return env->NewObject(audioPropertiesClass, audioPropertiesConstructor, 0, 0, 0, 0, codecUnknown);
}

jobject getPropertyMap(JNIEnv *env, const TagLibExt::FileRef &f) {
Expand Down
1 change: 1 addition & 0 deletions src/main/java/com/kyant/taglib/AudioProperties.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -13,4 +13,5 @@ public data class AudioProperties(
val bitrate: Int,
val sampleRate: Int,
val channels: Int,
val codec: String
)