这是他的github写的
#!/bin/bash
# File: converter.sh
# Date: August 19th, 2016
# Time: 18:56:52 +0800
# Author: kn007 <kn007@126.com>
# Blog: https://kn007.net
# Link: https://github.com/kn007/silk-v3-decoder
# Usage: sh converter.sh silk_v3_file/input_folder output_format/output_folder flag(format)
# Flag: not define ---- not define, convert a file
# other value ---- format, convert a folder, batch conversion support
# Requirement: gcc ffmpeg
# Colors
RED="$(tput setaf 1 2>/dev/null || echo '\e[0;31m')"
GREEN="$(tput setaf 2 2>/dev/null || echo '\e[0;32m')"
YELLOW="$(tput setaf 3 2>/dev/null || echo '\e[0;33m')"
WHITE="$(tput setaf 7 2>/dev/null || echo '\e[0;37m')"
RESET="$(tput sgr 0 2>/dev/null || echo '\e[0m')"
# Main
cur_dir=$(cd `dirname $0`; pwd)
if [ ! -r "$cur_dir/silk/decoder" ]; then
echo -e "${WHITE}[Notice]${RESET} Silk v3 Decoder is not found, compile it."
cd $cur_dir/silk
make && make decoder
[ ! -r "$cur_dir/silk/decoder" ]&&echo -e "${RED}[Error]${RESET} Silk v3 Decoder Compile False, Please Check Your System For GCC."&&exit
echo -e "${WHITE}========= Silk v3 Decoder Compile Finish =========${RESET}"
fi
cd $cur_dir
while [ $3 ]; do
[[ ! -z "$(pidof ffmpeg)" ]]&&echo -e "${RED}[Error]${RESET} ffmpeg is occupied by another application, please check it."&&exit
[ ! -d "$1" ]&&echo -e "${RED}[Error]${RESET} Input folder not found, please check it."&&exit
TOTAL=$(ls $1|wc -l)
[ ! -d "$2" ]&&mkdir "$2"&&echo -e "${WHITE}[Notice]${RESET} Output folder not found, create it."
[ ! -d "$2" ]&&echo -e "${RED}[Error]${RESET} Output folder could not be created, please check it."&&exit
CURRENT=0
echo -e "${WHITE}========= Batch Conversion Start ==========${RESET}"
ls $1 | while read line; do
let CURRENT+=1
$cur_dir/silk/decoder "$1/$line" "$2/$line.pcm" > /dev/null 2>&1
if [ ! -f "$2/$line.pcm" ]; then
ffmpeg -y -i "$1/$line" "$2/${line%.*}.$3" > /dev/null 2>&1 &
ffmpeg_pid=$!
while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
[ -f "$2/${line%.*}.$3" ]&&echo -e "[$CURRENT/$TOTAL]${GREEN}[OK]${RESET} Convert $line to ${line%.*}.$3 success, ${YELLOW}but not a silk v3 encoded file.${RESET}"&&continue
echo -e "[$CURRENT/$TOTAL]${YELLOW}[Warning]${RESET} Convert $line false, maybe not a silk v3 encoded file."&&continue
fi
ffmpeg -y -f s16le -ar 24000 -ac 1 -i "$2/$line.pcm" "$2/${line%.*}.$3" > /dev/null 2>&1 &
ffmpeg_pid=$!
while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
rm "$2/$line.pcm"
[ ! -f "$2/${line%.*}.$3" ]&&echo -e "[$CURRENT/$TOTAL]${YELLOW}[Warning]${RESET} Convert $line false, maybe ffmpeg no format handler for $3."&&continue
echo -e "[$CURRENT/$TOTAL]${GREEN}[OK]${RESET} Convert $line To ${line%.*}.$3 Finish."
done
echo -e "${WHITE}========= Batch Conversion Finish =========${RESET}"
exit
done
$cur_dir/silk/decoder "$1" "$1.pcm" > /dev/null 2>&1
if [ ! -f "$1.pcm" ]; then
ffmpeg -y -i "$1" "${1%.*}.$2" > /dev/null 2>&1 &
ffmpeg_pid=$!
while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
[ -f "${1%.*}.$2" ]&&echo -e "${GREEN}[OK]${RESET} Convert $1 to ${1%.*}.$2 success, ${YELLOW}but not a silk v3 encoded file.${RESET}"&&exit
echo -e "${YELLOW}[Warning]${RESET} Convert $1 false, maybe not a silk v3 encoded file."&&exit
fi
ffmpeg -y -f s16le -ar 24000 -ac 1 -i "$1.pcm" "${1%.*}.$2" > /dev/null 2>&1
ffmpeg_pid=$!
while kill -0 "$ffmpeg_pid"; do sleep 1; done > /dev/null 2>&1
rm "$1.pcm"
[ ! -f "${1%.*}.$2" ]&&echo -e "${YELLOW}[Warning]${RESET} Convert $1 false, maybe ffmpeg no format handler for $2."&&exit
echo -e "${GREEN}[OK]${RESET} Convert $1 To ${1%.*}.$2 Finish."
exit
