73 lines
2.4 KiB
Markdown
73 lines
2.4 KiB
Markdown
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# psxavenc
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psxavenc is an open-source command-line tool for encoding audio and video data
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into formats commonly used on the original PlayStation.
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## Installation
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Requirements:
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- a recent version of FFmpeg libraries (`libavformat`, `libavcodec`,
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`libavutil`, `libswresample`, `libswscale`);
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- a recent version of Meson.
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```shell
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$ meson setup build
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$ cd build
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$ ninja install
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```
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## Usage
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Run `psxavenc`.
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### Examples
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Rescale a video file to ≤320x240 pixels (preserving aspect ratio) and encode it
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into a 15fps .STR file with 37800 Hz 4-bit stereo audio and 2352-byte sectors,
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meant to be played at 2x CD-ROM speed:
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```shell
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$ psxavenc -t str2cd -f 37800 -b 4 -c 2 -s 320x240 -r 15 -x 2 in.mp4 out.str
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```
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Convert a mono audio sample to 22050 Hz raw SPU-ADPCM data:
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```shell
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$ psxavenc -t spu -f 22050 in.ogg out.snd
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```
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Convert a stereo audio file to a 44100 Hz interleaved .VAG file with 8192-byte
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interleave and loop flags set at the end of each interleaved chunk:
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```shell
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$ psxavenc -t vagi -f 44100 -c 2 -L -i 8192 in.wav out.vag
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```
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## Supported formats
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| Format | Audio | Channels | Video | Sector size |
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| :------- | :--------------- | :------- | :---- | :---------- |
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| `xa` | XA-ADPCM | 1 or 2 | None | 2336 bytes |
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| `xacd` | XA-ADPCM | 1 or 2 | None | 2352 bytes |
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| `spu` | SPU-ADPCM | 1 | None | |
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| `spui` | SPU-ADPCM | Any | None | Any |
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| `vag` | SPU-ADPCM | 1 | None | |
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| `vagi` | SPU-ADPCM | Any | None | Any |
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| `str2` | None or XA-ADPCM | 1 or 2 | BS v2 | 2336 bytes |
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| `str2cd` | None or XA-ADPCM | 1 or 2 | BS v2 | 2352 bytes |
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| `sbs2` | None | | BS v2 | Any |
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Notes:
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- `vag` and `vagi` are similar to `spu` and `spui` respectively, but add a .VAG
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header at the beginning of the file. The header is always 48 bytes long for
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`vag` files, while in the case of `vagi` files it is padded to the size
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specified using the `-a` option (2048 bytes by default). Note that `vagi`
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files with more than 2 channels and/or alignment other than 2048 bytes are not
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standardized.
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- The `sbs2` format (used in some System 573 games) is simply a series of
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concatenated BS v2 frames, each padded to the size specified by the `-a`
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option, with no additional headers besides the BS frame headers.
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