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jack-spammer.pl
174 lines (154 loc) · 5 KB
/
jack-spammer.pl
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#!/usr/bin/env perl
# Copyright (C) 2013 Abram Hindle
#
# This program is free software, you can redistribute it and/or modify it
# under the terms of the Artistic License version 2.0.
#
# Stupidly stream raw audio over XHTTPRequest
#
# To start this webservice just run:
# hypnotoad -f stream.pl rawfile.raw
# or
# perl stream.pl daemon rawfile.raw
#
use Mojo::Reactor::Poll;
use Mojo::IOLoop;
use Mojolicious::Lite;
use Digest::MD5 qw(md5 md5_hex md5_base64);
use strict;
use JSON;
use Data::Dumper;
use threads;
use Thread::Queue;
use jacks;
use strict;
use warnings;
use Cwd 'abs_path';
#@ARGV = qw(daemon --listen http://*:5000);
#my $n = 4096;
#my $n = 1024;;
my $n = 256;
my $sizet = 4;
#my $buffer =
my $queue = Thread::Queue->new();
my %transactions = ();
#my $reactor = Mojo::Reactor::Poll->new;
sub addToBuffer {
my $d = $_[0];
#warn "aTB: ".length($_[0]). " ".$queue->pending;
$queue->enqueue($d);
}
sub readFromBuffer {
my ($index) = @_;
my $pending = $queue->pending();
my $i = $index % $pending;
# warn "rFB: $index $i ".$pending;
#return $queue->peek($queue->pending()-1);
return $queue->peek($i);
}
sub bufferSize {
return $queue->pending();
}
#foreach my $file (@ARGV) {
# open(FILE,$file);
# my $in;
# while(0!=read(FILE,$in,$sizet*$n)) {
# push @buffers, $in;
# }
# warn scalar(@buffers);
# close(FILE);
#}
my $thr = threads->create(
sub {
my $jc = jacks::JsClient->new("simpler", undef, $jacks::JackNullOption, 0);
my $in = $jc->registerPort("input", $jacks::JackPortIsInput);
$jc->activate();
my $done = undef;
until($done) {
my $jsevent = $jc->getEvent(-1);
if ($jsevent->getType() == $jacks::PROCESS) {
my $inbuffer = $in->getBuffer();
my $nframes = $inbuffer->length();
#warn $nframes;
#my $dbuffer = "XXYY"x($nframes);
my $dbuffer = "X"x($nframes);
$inbuffer->dumpBuffer($dbuffer);
#my $digest = md5_hex($dbuffer);
my $digest = "";
addToBuffer($dbuffer);
#addToBuffer(substr($dbuffer,0,$nframes));
#warn "$digest -- $nframes ".bufferSize();
} elsif ($jsevent->getType() == $jacks::SAMPLE_RATE_CHANGE) {
my $sr = $jc->getSampleRate();
print("sample rate change event: sample rate is now $sr\n");
} elsif ($jsevent->getType() == $jacks::SHUTDOWN) {
print("jack shutdown event\n");
$done = "done!";
} elsif ($jsevent->getType() == $jacks::SESSION) {
my $dir = $jsevent->getSessionDir();
my $uuid = $jsevent->getUuid();
my $se_type = $jsevent->getSessionEventType();
my $setypeTxt = $se_type == $jacks::JackSessionSave ? "save" : "quit";
warn("session notification: path $dir, uuid $uuid, type: $setypeTxt\n");
if ($se_type == $jacks::JackSessionSaveAndQuit) {
$done = "done!";
}
my $script_path = abs_path($0);
my $cmd = "perl $script_path $uuid";
$jsevent->setCommandLine($cmd); #tell jackd how to restart us
} else {
die("unknown event type\n");
}
$jsevent->complete();
}
})->detach();
sub responder {
my $self = shift;
my $params = $self->req->params;
my $x = $params->param('n');
$self->respond_to(any => {data=>readFromBuffer($x)}, status => 200);
}
get "/stream/" => sub {
responder(@_);
};
websocket '/ws/' => sub {
my ($self) = @_;
# make a queue here and just add to it.
# when we get something send it.
$self->on(message =>
sub {
my ($self, $message) = @_;
# warn keys %transactions;
my $tx = $self->tx;
#my $buffSize = bufferSize();
#my $last = $transactions{$self->tx} || ($buffSize - 2);
#my $x = $last + 1;
#if ($buffSize - $x > 25) {
# $x = $buffSize - 1;
#}
warn $tx;
$transactions{$tx} = $self;
#my $x = int($message);
#warn "WS: [$x] $buffSize";
#$self->send( { binary => readFromBuffer($x) } );
}
);
$self->on(finish => sub {
my ($ws, $code, $reason) = @_;
my $tx = $ws->tx;
delete $transactions{$tx};
});
my $id = Mojo::IOLoop->recurring( ($n/(2.0*44100.0)) => sub {
my $pending = $queue->pending();
while( $pending > 0 ) {
my $d = $queue->dequeue_nb();
for my $tx (keys %transactions) {
warn "send $tx";
my $t = $transactions{$tx};
$t->send( { binary => $d } );
}
$pending = $queue->pending();
}
});
};
app->start();