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76 lines
3.9 KiB
Markdown
76 lines
3.9 KiB
Markdown
# [](resources/kirika.png) Kirika
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Collection of audio utilities for decoding/encoding files and streams.
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* Not based on ffmpeg/libav/libavcodec/libavformat and alike
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* Channel-based audio consumption/filter chain
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* Raw sample analyzer channels
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* AnalyzerChannel channels / mergers / splitters / trimmers
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* Audio resampler
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* Audio downmixing to stereo/mono
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* Multi-codec decoder and encoder
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* Multi-format packetizers
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## Codecs supported
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| Codec | Containers | Decoder | Analyzer | Encoder | Notes |
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|:----------:|:----------:|:-------:|:--------:|:-------:|:------------------------------------------------------------------------------------------------------------------------------------------------------|
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| **FLAC** | FLAC, Ogg | ✅ | ✅ | ✅ | Adjustable encoding compression level and block size. |
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| **TTA** | TTA | ✅ | ✅ | ✅ | Only 16bit encoding |
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| **MP3** | MP3 | ✅ | - | ✅ | Adjustable encoding bitrate and mode. Decoding via [minimp3](https://github.com/kvark128/minimp3), encoding via [LAME](https://lame.sourceforge.io/). |
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| **Opus** | Ogg | ✅ | - | ✅ | Adjustable encoding bitrate. |
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| **Vorbis** | Ogg | ✅ | - | ❌ | |
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| **AAC** | ADTS | ❌ | - | ✅ | Adjustable encoding bitrate and mode (LC, HEv2). |
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## Container packetizers supported
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| Container | Packetizer | Keep Mode | Sample Number |
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|:---------:|:----------:|:---------:|:-------------:|
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| **FLAC** | ✅ | ✅ | ✅ |
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| **TTA** | ❌ | - | - |
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| **MP3** | ✅ | ✅ | ✅ |
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| **Ogg** | ✅ | ✅ | ✅* |
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| **ADTS** | ✅ | ✅ | ✅ |
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*Sample number (absolute granule position) of Ogg depends on underlying codec implementing it.
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## Dependencies
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### Go >= 1.18
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### [libFLAC](https://github.com/xiph/flac) (required by [goflac](https://github.com/cocoonlife/goflac))
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```shell
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sudo apt install libflac-dev
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```
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### [libopus](https://github.com/xiph/opus) and [libopusfile](https://github.com/xiph/opusfile) (required by [go-pus](https://git.gammaspectra.live/S.O.N.G/go-pus))
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```shell
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sudo apt install libopus-dev libopusfile-dev
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```
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### [libopusenc](https://github.com/xiph/libopusenc) (required by [go-pus](https://git.gammaspectra.live/S.O.N.G/go-pus))
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```shell
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git clone --depth 1 https://github.com/xiph/libopusenc.git
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cd libopusenc
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./autogen.sh
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./configure --prefix /usr
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make
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sudo make install
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```
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### [FDK AAC Codec Library](https://github.com/mstorsjo/fdk-aac) (required by [go-fdkaac](https://git.gammaspectra.live/S.O.N.G/go-fdkaac))
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```shell
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git clone --depth 1 https://github.com/mstorsjo/fdk-aac.git
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cd fdk-aac
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./autogen.sh
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./configure --prefix /usr
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make -j$(nproc)
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sudo make install
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```
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### [LAME](https://lame.sourceforge.io/) (required by [go-lame](https://github.com/viert/go-lame))
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```shell
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sudo apt install libmp3lame-dev
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```
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### [libsamplerate](https://github.com/libsndfile/libsamplerate) (required by [gosamplerate](https://github.com/dh1tw/gosamplerate))
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```shell
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sudo apt install libsamplerate0-dev
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``` |