1995-02-14 03:32:41 -05:00
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The audio part of the MPEG standard specifies three layers, whereat each
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layer specifies its own file format. All three layers are using similar
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audio coding techniques, but they vary in efficiency and complexity.
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Layer I needs the fewest calculation time for en-/decoding a stream, layer III
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the most. But a layer I MPEG audio stream is bigger than a layer III stream
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at the same quality. This program is able to decode and play only layer I
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and II streams, layer III is not supported (yet?!?).
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1999-07-17 10:43:55 -04:00
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The maplay decodes layer I and layer II MPEG audio streams and plays them
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using a CD-quality audio device or sends the to stdout normally as 16 bit
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signed PCM values, interleaved for stereo streams.
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1995-02-14 03:32:41 -05:00
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1999-07-17 10:43:55 -04:00
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This player supports all modes, which are single channel, stereo,
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1995-02-14 03:32:41 -05:00
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joint stereo and dual channel, and all bitrates except free mode.
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The missing free mode support should not be a problem for now,
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because I haven't seen such a stream yet.
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