Module chd::codecs

source ·
Available on codec_api only.
Expand description

Implementations of decompression codecs used in MAME CHD.

Each codec may have restrictions on the hunk size, lengths and contents of the buffer. If decompress is called with buffers that do not satisfy the constraints, it may return CompressionError, or panic, especially if the output buffer does not satisfy length requirements.

Because codecs are allowed to be used outside of a hunk-sized granularity, such as in CD-ROM wrapped codecs that use Deflate to decompress subcode data, the codec implementations do not check the length of the output buffer against the hunk size. It is up to the caller of decompress to uphold length invariants.

Structs§

  • AVHuffCodec
    MAME AV Huffman (avhu) decompression codec.
  • CdFlacCodec
    CD-ROM wrapper decompression codec (cdfl) using the FLAC for decompression of sector data and the Deflate codec for decompression of subcode data.
  • DecompressResult
    The result of a chunk decompression operation.
  • HuffmanCodec
    MAME 8-bit Huffman (huff) decompression codec.
  • LzmaCodec
    LZMA (lzma) decompression codec.
  • NoneCodec
    None/copy codec that does a byte-for-byte copy of the input buffer.
  • RawFlacCodec
    Raw FLAC (flac) decompression codec.
  • ZlibCodec
    Deflate (zlib) decompression codec.
  • ZstdCodec
    Zstandard (zstd) decompression codec.

Traits§

Type Aliases§