view decoders/libmpg123/dnoise.sh @ 591:8faf61a640f0 tip

Resynced fixes for unit conversion bugs in the Ogg Tremor decoder from SoundDecoder/ALmixer. Ogg Vorbis uses seconds and we multiply by 1000 to convert to milliseconds. But Ogg Tremor already uses milliseconds but I was still multiplying by 1000.
author Eric Wing <ewing . public |-at-| gmail . com>
date Thu, 25 Oct 2012 16:34:18 -0700
parents 7e08477b0fc1
children
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#!/bin/sh

# A script to generate dnoise.c from a plain text file with the noise numbers.
# In future, the plain text file (or a binary version) may be used by mpg123 at runtime instead of compiling it in.

# copyright 2006-8 by the mpg123 project - free software under the terms of the LGPL 2.1
# initially written by Thomas Orgis

echo '/*
	dnoise: Noise for dithered output.

	copyright 2006-8 by the mpg123 project - free software under the terms of the LGPL 2.1
	see COPYING and AUTHORS files in distribution or http://mpg123.org
	initially written by (in assembler) Adrian Bacon
*/

float dithernoise[65536] =
{'

# If sed is there, use it.
if echo -n | sed ''; then
  sed -e 's/$/f,/' < "$1"
else
# Plain sh... very slow, but works.
  while read i
  do
    echo "${i}f,"
  done < "$1"
fi

echo '};';