@@ -632,4 +632,35 @@ bits:value 0+:the number of wasted bits per sample (minus one) encoded as unary _ .TE +.TS +tab(:); +| c s | +| c | l |. +_ +Subframe Type +_ +bits:type += +000000:SUBFRAME_CONSTANT +000001:SUBFRAME_VERBATIM +00001x:reserved +0001xx:reserved +001xxx:SUBFRAME_FIXED (xxx = Predictor Order) +01xxxx:reserved +1xxxxx:SUBFRAME_LPC (xxxxx = Predictor Order - 1) +_ +.TE +.bp +.SUBSUBSECTION "the CONSTANT subframe" +.PP +If all the samples in a subframe are identical, one can encode them +using a CONSTANT subframe, which is essentially a single sample value +that gets duplicated `block size' number of times when decoded. +.SUBSUBSECTION "the VERBATIM subframe" +.PP +This subframe simply stores all the samples as-is, +with no compression whatsoever. +It is a `fallback' encoding method for when no other subframe makes one's +data any smaller. + docs/codec_flac.ms 905bfcfdbcdb3224b13be4b0fc5013a931334bf6 Brian Langenberger bjl@usa.net http://github.com/tuffy/python-audio-tools/commit/4ae5feba76b065715bf17cb179186398c01a539d 4ae5feba76b065715bf17cb179186398c01a539d 2008-05-09T11:00:00-07:00 2008-05-09T11:00:00-07:00 Added basic treatment of the CONSTANT and VERBATIM subframe types. cff42103b18e8642d28de0cd920f64f11296eda3 Brian Langenberger bjl@usa.net