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Make peak server work.

pull/3/head
Jonathan Moore Liles 2008-03-25 16:17:24 -05:00
parent fda03b174a
commit d2478e3161
9 changed files with 165 additions and 38 deletions
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1
Engine/Makefile
View File

@ -1,6 +1,7 @@
SRCS= \
Server.C \
Peak_Server.C \
Timeline_Server.C \
main.C \
Audio_File.C \

61
Engine/Peak_Server.C
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@ -17,6 +17,12 @@
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/*******************************************************************************/
#include "Peak_Server.H"
#include <stdio.h>
#include <string.h>
#include <sys/socket.h>
/* Peak Server
The peak server streams peak data to any timeline editors or other clients that ask for it.
@ -27,6 +33,59 @@
Response looks like (in binary floats):
> length min max min max min max
> channels length min max min max min max
length ...
*/
#include "Audio_File.H"
#include "Peaks.H"
typedef unsigned long tick_t;
#define PEAK_PORT 6100
void
Peak_Server::handle_new ( int s )
{
printf( "new connection\n" );
}
void
Peak_Server::handle_hang_up ( int s )
{
printf( "hangup\n" );
}
void
Peak_Server::handle_request ( int s, const char *buf, int l )
{
printf( "request: %s", buf );
char source[512];
float fpp;
tick_t start, end;
if ( 4 != sscanf( buf, "read_peaks \"%[^\"]\" %f %lu %lu", source, &fpp, &start, &end ) )
fprintf( stderr, "error: malformed peak request!\n" );
Audio_File *af = Audio_File::from_file( source );
int channels = af->channels();
send( s, &channels, sizeof( int ), 0 );
for ( int i = 0; i < af->channels(); ++i )
{
const Peaks *pk = af->peaks( i );
int peaks = pk->fill_buffer( fpp, start, end );
send( s, &peaks, sizeof( int ), 0 );
send( s, pk->peakbuf(), peaks * sizeof( Peak ), 0 );
}
delete af;
}

40
Engine/Peak_Server.H Normal file
View File

@ -0,0 +1,40 @@
/*******************************************************************************/
/* Copyright (C) 2008 Jonathan Moore Liles */
/* */
/* This program is free software; you can redistribute it and/or modify it */
/* under the terms of the GNU General Public License as published by the */
/* Free Software Foundation; either version 2 of the License, or (at your */
/* option) any later version. */
/* */
/* This program is distributed in the hope that it will be useful, but WITHOUT */
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for */
/* more details. */
/* */
/* You should have received a copy of the GNU General Public License along */
/* with This program; see the file COPYING. If not,write to the Free Software */
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/*******************************************************************************/
#pragma once
#include "Server.H"
class Peak_Server : public Server
{
protected:
void handle_new ( int s );
void handle_hang_up ( int s );
void handle_request ( int s, const char *s, int l );
public:
Peak_Server ( int port ) : Server ( port )
{
fork( true );
echo( false );
}
};

69
Engine/Peaks.C
View File

@ -38,27 +38,33 @@
#include <math.h>
Peaks::peakbuffer Peaks::peakbuf;
Peaks::peakbuffer Peaks::_peakbuf;
/** Prepare a buffer of peaks from /s/ to /e/ for reading. Must be
* called before any calls to operator[] */
void
int
Peaks::fill_buffer ( float fpp, int s, int e ) const
{
_fpp = fpp;
if ( fpp < _peaks->chunksize )
/* FIXME: repair this */
// if ( fpp < _peaks->chunksize )
{
/* looks like we're going to have to switch to a higher resolution peak file
or read directly from the source */
read_peaks( s, e, (e - s) / fpp, fpp );
/* FIXME: are we *SURE* we got them all? */
return e - s;
}
else
{
/* we'll just downsample on the fly in this case--no need for extra copying into
the buffer */
}
/* else */
/* { */
/* /\* we'll just downsample on the fly in this case--no need for extra copying into */
/* the buffer *\/ */
/* } */
}
@ -123,19 +129,19 @@ Peaks::read_peaks ( int s, int e, int npeaks, int chunksize ) const
{
printf( "reading peaks %d @ %d\n", npeaks, chunksize );
if ( peakbuf.size < npeaks )
if ( _peakbuf.size < npeaks )
{
peakbuf.size = npeaks;
// printf( "reallocating peak buffer %li\n", peakbuf.size );
peakbuf.buf = (peakdata*)realloc( peakbuf.buf, sizeof( peakdata ) + (peakbuf.size * sizeof( Peak )) );
_peakbuf.size = npeaks;
// printf( "reallocating peak buffer %li\n", _peakbuf.size );
_peakbuf.buf = (peakdata*)realloc( _peakbuf.buf, sizeof( peakdata ) + (_peakbuf.size * sizeof( Peak )) );
}
_clip->open();
_clip->seek( s );
peakbuf.offset = s;
peakbuf.buf->chunksize = chunksize;
peakbuf.len = clip_read_peaks( peakbuf.buf->data, npeaks, chunksize );
_peakbuf.offset = s;
_peakbuf.buf->chunksize = chunksize;
_peakbuf.len = clip_read_peaks( _peakbuf.buf->data, npeaks, chunksize );
_clip->close();
}
@ -149,17 +155,17 @@ Peaks::peak ( nframes_t start, nframes_t end ) const
if ( _fpp < _peaks->chunksize )
{
assert( _fpp == peakbuf.buf->chunksize );
assert( _fpp == _peakbuf.buf->chunksize );
start = (start - peakbuf.offset) / peakbuf.buf->chunksize;
end = (end - peakbuf.offset) / peakbuf.buf->chunksize;
start = (start - _peakbuf.offset) / _peakbuf.buf->chunksize;
end = (end - _peakbuf.offset) / _peakbuf.buf->chunksize;
if ( end > peakbuf.len )
end = peakbuf.len;
if ( end > _peakbuf.len )
end = _peakbuf.len;
// assert( peakbuf.len > start );
// assert( _peakbuf.len > start );
downsample( peakbuf.buf->data, start, end, &p.max, &p.min );
downsample( _peakbuf.buf->data, start, end, &p.max, &p.min );
}
else
{
@ -175,17 +181,18 @@ Peaks::peak ( nframes_t start, nframes_t end ) const
/* virtual array. Index is a Pixel value, and it returns the
* (resampled) peaks for that pixel based on the current timeline
* zoom. */
Peak &
Peaks::operator[] ( int X ) const
{
Peak p;
p.min = 0;
p.max = 0;
return p;
// return peak( timeline->x_to_ts( X ), timeline->x_to_ts( X + 1 ) );
/* Peak & */
/* Peaks::operator[] ( int X ) const */
/* { */
}
/* Peak p; */
/* p.min = 0; */
/* p.max = 0; */
/* return p; */
/* // return peak( timeline->x_to_ts( X ), timeline->x_to_ts( X + 1 ) ); */
/* } */
const char *

5
Engine/Peaks.H
View File

@ -54,7 +54,7 @@ class Peaks
}
};
static peakbuffer peakbuf;
static peakbuffer _peakbuf;
Audio_File *_clip;
int _channel;
@ -96,10 +96,11 @@ public:
_channel = 0;
}
Peak *peakbuf ( void ) const { return Peaks::_peakbuf.buf->data; }
void clip ( Audio_File *c ) { _clip = c; }
void channel ( int v ) { _channel = v; }
void fill_buffer ( float fpp, int s, int e ) const;
int fill_buffer ( float fpp, int s, int e ) const;
void downsample ( Peak *peaks, int s, int e, float *mhi, float *mlo ) const;
void read ( int X, float *hi, float *lo ) const;

4
Engine/Server.C
View File

@ -83,6 +83,8 @@ Server::listen_on_port ( int port )
Server::Server ( int port )
{
_port = port;
_echo = false;
_fork = false;
}
void
@ -159,7 +161,7 @@ Server::run ( void )
else
{
if ( echos() )
if ( echo() )
/* echo to others */
for ( int j = maxfd; j-- ; )
{

10
Engine/Server.H
View File

@ -17,10 +17,14 @@
/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/*******************************************************************************/
#pragma once
class Server
{
int _port;
bool _echo;
bool _fork;
static int listen_on_port ( int port );
@ -29,9 +33,13 @@ public:
Server ( int port );
void run ( void );
bool echo ( void ) { return _echo; }
bool fork ( void ) { return _fork; }
void echo ( bool b ) { _echo = b; }
void fork ( bool b) { _fork = b; }
protected:
virtual bool echos ( void ) { return true; }
virtual void handle_hang_up ( int s ) = 0;
virtual void handle_new ( int s ) = 0;

2
Engine/Timeline_Server.H
View File

@ -34,5 +34,7 @@ public:
Timeline_Server ( int port ) : Server ( port )
{
fork( false );
echo( true );
}
};

11
Engine/main.C
View File

@ -26,6 +26,7 @@
#include "Timeline_Server.H"
#include "Peak_Server.H"
/* TODO:
@ -60,7 +61,13 @@
int
main ( int argc, char **argv )
{
Timeline_Server tls( 6110 );
tls.run();
/* Timeline_Server tls( 6110 ); */
/* tls.run(); */
Peak_Server pks( 6111 );
pks.run();
}