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loliball 2024-09-07 21:07:10 +08:00
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.gradle
build/
!gradle/wrapper/gradle-wrapper.jar
!**/src/main/**/build/
!**/src/test/**/build/
### IntelliJ IDEA ###
.idea/modules.xml
.idea/jarRepositories.xml
.idea/compiler.xml
.idea/libraries/
*.iws
*.iml
*.ipr
out/
!**/src/main/**/out/
!**/src/test/**/out/
### Eclipse ###
.apt_generated
.classpath
.factorypath
.project
.settings
.springBeans
.sts4-cache
bin/
!**/src/main/**/bin/
!**/src/test/**/bin/
### NetBeans ###
/nbproject/private/
/nbbuild/
/dist/
/nbdist/
/.nb-gradle/
### VS Code ###
.vscode/
### Mac OS ###
.DS_Store

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# Default ignored files
/shelf/
/workspace.xml
# Editor-based HTTP Client requests
/httpRequests/
# Datasource local storage ignored files
/dataSources/
/dataSources.local.xml

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="GradleSettings">
<option name="linkedExternalProjectsSettings">
<GradleProjectSettings>
<option name="externalProjectPath" value="$PROJECT_DIR$" />
<option name="gradleHome" value="" />
<option name="modules">
<set>
<option value="$PROJECT_DIR$" />
</set>
</option>
</GradleProjectSettings>
</option>
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="KotlinJpsPluginSettings">
<option name="version" value="1.9.23" />
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="ExternalStorageConfigurationManager" enabled="true" />
<component name="FrameworkDetectionExcludesConfiguration">
<file type="web" url="file://$PROJECT_DIR$" />
</component>
<component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="corretto-17" project-jdk-type="JavaSDK">
<output url="file://$PROJECT_DIR$/out" />
</component>
</project>

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<?xml version="1.0" encoding="UTF-8"?>
<project version="4">
<component name="VcsDirectoryMappings">
<mapping directory="$PROJECT_DIR$" vcs="Git" />
</component>
</project>

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plugins {
kotlin("jvm") version "1.9.23"
}
group = "loli.ball"
version = "1.0-SNAPSHOT"
repositories {
mavenCentral()
}
dependencies {
implementation("org.jetbrains.kotlinx:kotlinx-coroutines-core:1.9.0-RC.2")
implementation("io.github.jaredmdobson:concentus:1.0.2")
testImplementation(kotlin("test"))
}
tasks.test {
useJUnitPlatform()
}
kotlin {
jvmToolchain(17)
}

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kotlin.code.style=official

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#Sat Sep 07 20:30:58 CST 2024
distributionBase=GRADLE_USER_HOME
distributionPath=wrapper/dists
distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
zipStoreBase=GRADLE_USER_HOME
zipStorePath=wrapper/dists

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#!/bin/sh
#
# Copyright © 2015-2021 the original authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
##############################################################################
#
# Gradle start up script for POSIX generated by Gradle.
#
# Important for running:
#
# (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
# noncompliant, but you have some other compliant shell such as ksh or
# bash, then to run this script, type that shell name before the whole
# command line, like:
#
# ksh Gradle
#
# Busybox and similar reduced shells will NOT work, because this script
# requires all of these POSIX shell features:
# * functions;
# * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
# «${var#prefix}», «${var%suffix}», and «$( cmd )»;
# * compound commands having a testable exit status, especially «case»;
# * various built-in commands including «command», «set», and «ulimit».
#
# Important for patching:
#
# (2) This script targets any POSIX shell, so it avoids extensions provided
# by Bash, Ksh, etc; in particular arrays are avoided.
#
# The "traditional" practice of packing multiple parameters into a
# space-separated string is a well documented source of bugs and security
# problems, so this is (mostly) avoided, by progressively accumulating
# options in "$@", and eventually passing that to Java.
#
# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
# see the in-line comments for details.
#
# There are tweaks for specific operating systems such as AIX, CygWin,
# Darwin, MinGW, and NonStop.
#
# (3) This script is generated from the Groovy template
# https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
# within the Gradle project.
#
# You can find Gradle at https://github.com/gradle/gradle/.
#
##############################################################################
# Attempt to set APP_HOME
# Resolve links: $0 may be a link
app_path=$0
# Need this for daisy-chained symlinks.
while
APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path
[ -h "$app_path" ]
do
ls=$( ls -ld "$app_path" )
link=${ls#*' -> '}
case $link in #(
/*) app_path=$link ;; #(
*) app_path=$APP_HOME$link ;;
esac
done
APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
APP_NAME="Gradle"
APP_BASE_NAME=${0##*/}
# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
# Use the maximum available, or set MAX_FD != -1 to use that value.
MAX_FD=maximum
warn () {
echo "$*"
} >&2
die () {
echo
echo "$*"
echo
exit 1
} >&2
# OS specific support (must be 'true' or 'false').
cygwin=false
msys=false
darwin=false
nonstop=false
case "$( uname )" in #(
CYGWIN* ) cygwin=true ;; #(
Darwin* ) darwin=true ;; #(
MSYS* | MINGW* ) msys=true ;; #(
NONSTOP* ) nonstop=true ;;
esac
CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
# Determine the Java command to use to start the JVM.
if [ -n "$JAVA_HOME" ] ; then
if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
# IBM's JDK on AIX uses strange locations for the executables
JAVACMD=$JAVA_HOME/jre/sh/java
else
JAVACMD=$JAVA_HOME/bin/java
fi
if [ ! -x "$JAVACMD" ] ; then
die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
else
JAVACMD=java
which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
Please set the JAVA_HOME variable in your environment to match the
location of your Java installation."
fi
# Increase the maximum file descriptors if we can.
if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
case $MAX_FD in #(
max*)
MAX_FD=$( ulimit -H -n ) ||
warn "Could not query maximum file descriptor limit"
esac
case $MAX_FD in #(
'' | soft) :;; #(
*)
ulimit -n "$MAX_FD" ||
warn "Could not set maximum file descriptor limit to $MAX_FD"
esac
fi
# Collect all arguments for the java command, stacking in reverse order:
# * args from the command line
# * the main class name
# * -classpath
# * -D...appname settings
# * --module-path (only if needed)
# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
# For Cygwin or MSYS, switch paths to Windows format before running java
if "$cygwin" || "$msys" ; then
APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
JAVACMD=$( cygpath --unix "$JAVACMD" )
# Now convert the arguments - kludge to limit ourselves to /bin/sh
for arg do
if
case $arg in #(
-*) false ;; # don't mess with options #(
/?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath
[ -e "$t" ] ;; #(
*) false ;;
esac
then
arg=$( cygpath --path --ignore --mixed "$arg" )
fi
# Roll the args list around exactly as many times as the number of
# args, so each arg winds up back in the position where it started, but
# possibly modified.
#
# NB: a `for` loop captures its iteration list before it begins, so
# changing the positional parameters here affects neither the number of
# iterations, nor the values presented in `arg`.
shift # remove old arg
set -- "$@" "$arg" # push replacement arg
done
fi
# Collect all arguments for the java command;
# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
# shell script including quotes and variable substitutions, so put them in
# double quotes to make sure that they get re-expanded; and
# * put everything else in single quotes, so that it's not re-expanded.
set -- \
"-Dorg.gradle.appname=$APP_BASE_NAME" \
-classpath "$CLASSPATH" \
org.gradle.wrapper.GradleWrapperMain \
"$@"
# Use "xargs" to parse quoted args.
#
# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
#
# In Bash we could simply go:
#
# readarray ARGS < <( xargs -n1 <<<"$var" ) &&
# set -- "${ARGS[@]}" "$@"
#
# but POSIX shell has neither arrays nor command substitution, so instead we
# post-process each arg (as a line of input to sed) to backslash-escape any
# character that might be a shell metacharacter, then use eval to reverse
# that process (while maintaining the separation between arguments), and wrap
# the whole thing up as a single "set" statement.
#
# This will of course break if any of these variables contains a newline or
# an unmatched quote.
#
eval "set -- $(
printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
xargs -n1 |
sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
tr '\n' ' '
)" '"$@"'
exec "$JAVACMD" "$@"

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@rem
@rem Copyright 2015 the original author or authors.
@rem
@rem Licensed under the Apache License, Version 2.0 (the "License");
@rem you may not use this file except in compliance with the License.
@rem You may obtain a copy of the License at
@rem
@rem https://www.apache.org/licenses/LICENSE-2.0
@rem
@rem Unless required by applicable law or agreed to in writing, software
@rem distributed under the License is distributed on an "AS IS" BASIS,
@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
@rem See the License for the specific language governing permissions and
@rem limitations under the License.
@rem
@if "%DEBUG%" == "" @echo off
@rem ##########################################################################
@rem
@rem Gradle startup script for Windows
@rem
@rem ##########################################################################
@rem Set local scope for the variables with windows NT shell
if "%OS%"=="Windows_NT" setlocal
set DIRNAME=%~dp0
if "%DIRNAME%" == "" set DIRNAME=.
set APP_BASE_NAME=%~n0
set APP_HOME=%DIRNAME%
@rem Resolve any "." and ".." in APP_HOME to make it shorter.
for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
@rem Find java.exe
if defined JAVA_HOME goto findJavaFromJavaHome
set JAVA_EXE=java.exe
%JAVA_EXE% -version >NUL 2>&1
if "%ERRORLEVEL%" == "0" goto execute
echo.
echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:findJavaFromJavaHome
set JAVA_HOME=%JAVA_HOME:"=%
set JAVA_EXE=%JAVA_HOME%/bin/java.exe
if exist "%JAVA_EXE%" goto execute
echo.
echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
echo.
echo Please set the JAVA_HOME variable in your environment to match the
echo location of your Java installation.
goto fail
:execute
@rem Setup the command line
set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
@rem Execute Gradle
"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
:end
@rem End local scope for the variables with windows NT shell
if "%ERRORLEVEL%"=="0" goto mainEnd
:fail
rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
rem the _cmd.exe /c_ return code!
if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
exit /b 1
:mainEnd
if "%OS%"=="Windows_NT" endlocal
:omega

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plugins {
id("org.gradle.toolchains.foojay-resolver-convention") version "0.5.0"
}
rootProject.name = "VoiceChat2"

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src/main/kotlin/AudioConvert.kt Normal file
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import javax.sound.sampled.AudioFormat
import kotlin.math.max
import kotlin.math.min
object AudioConvert {
fun getAudioFormat(sampleRate: Int, channels: Int): AudioFormat {
return AudioFormat(
AudioFormat.Encoding.PCM_SIGNED,
sampleRate.toFloat(),
16,
channels,
channels * 2,
sampleRate.toFloat(),
false
)
}
/**
* 将 float[] 转换为 short 的 byte[]。
*
* @param input 输入的 float[] 数据
* @param output 转换后的 byte[] 数据
*/
fun convertFloatToShortByte(input: FloatArray, output: ByteArray) {
require(input.size * 2 == output.size) { "output byte array length must be twice the length of the input float array." }
for (i in input.indices) {
// 将 float 值限制在 -1.0 到 1.0 之间
val sample = min(max(input[i].toDouble(), -1.0), 1.0).toFloat()
// 将 float 值转换为 short
val shortSample = (sample * 32767).toInt().toShort()
// 将 short 值转换为两个字节，并存储在 lineBuffer 中
output[i * 2] = (shortSample.toInt() and 0xFF).toByte() // 低位字节
output[i * 2 + 1] = ((shortSample.toInt() shr 8) and 0xFF).toByte() // 高位字节
}
}
/**
* 将 short 的 byte[] 转换为 float[]。
*
* @param input 输入的 byte[] 数据（每两个字节表示一个 short）
* @param output 转换后的 float[] 数据
*/
fun convertShortByteToFloat(input: ByteArray, output: FloatArray) {
require(input.size == output.size * 2) { "Input byte array length must be twice the length of the output float array." }
for (i in output.indices) {
// 将两个字节转换为 short
val low = input[i * 2].toInt() and 0xFF
val high = input[i * 2 + 1].toInt() and 0xFF
val shortSample = ((high shl 8) or low).toShort()
// 将 short 值转换为 float
output[i] = shortSample / 32768.0f
}
}
fun bytes2shorts(input: ByteArray, output: ShortArray) {
for (c in output.indices) {
val low = input[(c * 2)].toInt() and 0xFF
val high = input[(c * 2) + 1].toInt() shl 8
output[c] = (low or high).toShort()
}
}
fun shorts2bytes(input: ShortArray, output: ByteArray) {
for (c in input.indices) {
output[c * 2] = (input[c].toInt() and 0xFF).toByte()
output[c * 2 + 1] = ((input[c].toInt() shr 8) and 0xFF).toByte()
}
}
}

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import io.github.jaredmdobson.concentus.OpusApplication
import io.github.jaredmdobson.concentus.OpusDecoder
import io.github.jaredmdobson.concentus.OpusEncoder
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.runBlocking
import java.io.IOException
import java.io.ObjectInputStream
import java.io.ObjectOutputStream
import java.io.Serializable
import java.net.InetSocketAddress
import java.net.Socket
import javax.sound.sampled.AudioSystem
import kotlin.system.measureTimeMillis
class Client {
companion object {
@JvmStatic
fun main(args: Array<String>) {
Client().mainClient()
}
}
val bufferOut = ByteArray(BUFFER_SIZE)
val targetDataLine = AudioSystem.getTargetDataLine(AUDIO_FORMAT).also {
it.open(AUDIO_FORMAT, bufferOut.size)
it.start()
}
val bufferIn = ByteArray(BUFFER_SIZE)
val sourceDataLine = AudioSystem.getSourceDataLine(AUDIO_FORMAT).also {
it.open(AUDIO_FORMAT, bufferIn.size)
it.start()
}
val decoder = OpusDecoder(SAMPLE_RATE, CHANNELS)
val encoder = OpusEncoder(SAMPLE_RATE, CHANNELS, OpusApplication.OPUS_APPLICATION_AUDIO).also {
it.bitrate = OPUS_BITRATE
it.forceMode = OPUS_MODE
it.signalType = OPUS_SIGNAL_TYPE
it.complexity = OPUS_COMPLEXITY
}
fun mainClient() {
val socket = Socket()
val scope = CoroutineScope(Dispatchers.IO)
val t = measureTimeMillis {
socket.connect(InetSocketAddress(SERVER_HOST, SERVER_PORT))
}
"connect time $t".loge()
val out = ObjectOutputStream(socket.getOutputStream())
val inp = ObjectInputStream(socket.getInputStream())
val recordJob = scope.launch {
while (true) {
targetDataLine.read(bufferOut, 0, bufferOut.size)
try {
out.writeObject(encoder.encode(bufferOut))
out.flush()
} catch (e: Exception) {
e.printStackTrace()
System.exit(0)
}
}
}
val playJob = scope.launch {
while (true) {
try {
// if (`in`!!.available() > bufferIn.size * 2) {
// `in`!!.skip(`in`!!.available().toLong() - bufferIn.size)
// println("丢弃")
// }
// `in`!!.read(bufferIn, 0, bufferIn.size)
val dataPack = inp.readObject() as DataPack
decoder.decode(dataPack, bufferIn)
sourceDataLine.write(bufferIn, 0, bufferIn.size)
} catch (e: IOException) {
e.printStackTrace()
System.exit(0)
}
}
}
runBlocking {
recordJob.join()
playJob.join()
}
}
}

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import java.io.Serializable
/**
* Created by LoliBall on 2024/8/31 23:02.
* https://github.com/WhichWho
*/
data class DataPack(
val timestamp: Long,
val opus: ByteArray,
) : Serializable

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import io.github.jaredmdobson.concentus.*
import kotlinx.coroutines.*
import java.util.concurrent.atomic.AtomicInteger
import javax.print.Doc
import kotlin.concurrent.fixedRateTimer
/**
* Created by LoliBall on 2024/8/31 5:26.
* https://github.com/WhichWho
*/
//val SERVER_HOST = "zedo.top"
val SERVER_HOST = "127.0.0.1"
val SERVER_PORT = 7860
val ECHO_CANCELLATION = false // 回声消除
val RAW_PCM_PASS = false // 不进行opus压缩pcm直传
// 2.5, 5, 10, 20, 40, 60 ms
// 120, 240, 480, 960, 1920, 2880
val PACKET_SAMPLES = 2880 // 48000Hz * 60ms = 2880
val SAMPLE_RATE = 48000 // 8000、12000、16000、24000、48000
val CHANNELS = 1
val BUFFER_SIZE = PACKET_SAMPLES * CHANNELS * 2 // * 2是short | 48000Hz * 2(short) * 60ms = 5760B
val AUDIO_FORMAT = AudioConvert.getAudioFormat(SAMPLE_RATE, CHANNELS)
val OPUS_BITRATE = OpusConstants.OPUS_AUTO // 500 - 300000
val OPUS_COMPLEXITY = 10 // 0: 快,质量差 10: 慢,质量好
val OPUS_SIGNAL_TYPE = OpusSignal.OPUS_SIGNAL_VOICE
val OPUS_MODE = OpusMode.MODE_HYBRID
// 下面是统计用的
val compressRateOpus = AtomicInteger()
val compressRatePcm = AtomicInteger()
fun main(args: Array<String>) {
val scope = CoroutineScope(Dispatchers.IO)
scope.launch {
Server.main(emptyArray())
}
scope.launch {
delay(1000) // 等服务器起来
Client.main(emptyArray())
}
fixedRateTimer(period = 1000) {
"compress rate: %.2f%%".format(compressRateOpus.get() * 100f / compressRatePcm.get()).loge()
compressRateOpus.set(0)
compressRatePcm.set(0)
}
}
val encodeOpusBuffer = mutableMapOf<OpusEncoder, ByteArray>()
val encodePcmShortBuffer = mutableMapOf<OpusEncoder, ShortArray>()
// 1275是opus单帧包最大值
fun OpusEncoder.encode(pcm: ByteArray): DataPack {
if (RAW_PCM_PASS) {
return DataPack(System.currentTimeMillis(), pcm.copyOf())
}
val opusBuffer = encodeOpusBuffer[this] ?: ByteArray(1275).also { encodeOpusBuffer[this] = it }
val shortBuffer = encodePcmShortBuffer[this] ?: ShortArray(pcm.size / 2).also { encodePcmShortBuffer[this] = it }
AudioConvert.bytes2shorts(pcm, shortBuffer)
val bytesEncoded = encode(shortBuffer, 0, PACKET_SAMPLES, opusBuffer, 0, opusBuffer.size)
compressRatePcm.addAndGet(pcm.size)
compressRateOpus.addAndGet(bytesEncoded)
return DataPack(System.currentTimeMillis(), opusBuffer.sliceArray(0..<bytesEncoded))
}
val decodePcmShortBuffer = mutableMapOf<OpusDecoder, ShortArray>()
fun OpusDecoder.decode(pack: DataPack, pcm: ByteArray) {
if (RAW_PCM_PASS) {
pack.opus.copyInto(pcm)
return
}
val shortBuffer = decodePcmShortBuffer[this] ?: ShortArray(pcm.size / 2).also { decodePcmShortBuffer[this] = it }
decode(pack.opus, 0, pack.opus.size, shortBuffer, 0, PACKET_SAMPLES, false)
AudioConvert.shorts2bytes(shortBuffer, pcm)
}
fun <T> T.loge() = also { println(this) }

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src/main/kotlin/Server.kt Normal file
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import io.github.jaredmdobson.concentus.OpusApplication
import io.github.jaredmdobson.concentus.OpusDecoder
import io.github.jaredmdobson.concentus.OpusEncoder
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import java.io.IOException
import java.io.ObjectInputStream
import java.io.ObjectOutputStream
import java.net.ServerSocket
import java.net.Socket
import java.util.*
import java.util.concurrent.CopyOnWriteArrayList
val clientAudios = CopyOnWriteArrayList<ClientAudio>()
object Server {
@JvmStatic
fun main(args: Array<String>) {
mainServer()
}
fun mainServer() {
val scope = CoroutineScope(Dispatchers.IO)
scope.launch {
while (true) {
for (client in clientAudios) {
if (!client.isConnected) {
clientAudios -= client
continue
}
client.read()
}
for (client in clientAudios) {
launch {
for (audio in clientAudios) {
if (audio != client || !ECHO_CANCELLATION) {
client.mix(audio.sample)
}
}
client.send()
}
}
}
}
val sever = ServerSocket(SERVER_PORT)
while (true) {
val socket = sever.accept()
println("Accepted connection from " + socket.remoteSocketAddress)
clientAudios += ClientAudio(socket)
}
}
}
class ClientAudio(val socket: Socket) {
val inp = ObjectInputStream(socket.getInputStream())
val out = ObjectOutputStream(socket.getOutputStream())
val buffer = ByteArray(BUFFER_SIZE)
val sample = FloatArray(PACKET_SAMPLES)
val mixSample = FloatArray(PACKET_SAMPLES)
val mixBuffer = ByteArray(BUFFER_SIZE)
val decoder = OpusDecoder(SAMPLE_RATE, CHANNELS)
val encoder = OpusEncoder(SAMPLE_RATE, CHANNELS, OpusApplication.OPUS_APPLICATION_AUDIO).also {
it.bitrate = OPUS_BITRATE
it.forceMode = OPUS_MODE
it.signalType = OPUS_SIGNAL_TYPE
it.complexity = OPUS_COMPLEXITY
}
var isConnected = true
fun send() {
try {
AudioConvert.convertFloatToShortByte(mixSample, mixBuffer)
out.writeObject(encoder.encode(mixBuffer))
out.flush()
} catch (e: IOException) {
isConnected = false
}
}
fun read() {
try {
// if (`in`!!.available() > bufferIn.size * 2) {
// `in`!!.skip(`in`!!.available().toLong() - bufferIn.size)
// println("丢弃")
// }
// `in`.read(buffer)
val pack = inp.readObject() as DataPack
// println("延迟： ${System.currentTimeMillis() - timestamp}ms")
decoder.decode(pack, buffer)
AudioConvert.convertShortByteToFloat(buffer, sample)
Arrays.fill(mixSample, 0f)
} catch (e: IOException) {
isConnected = false
}
}
fun mix(sample: FloatArray) {
for (i in sample.indices) {
mixSample[i] += sample[i]
}
}
}