You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
100 lines
2.5 KiB
100 lines
2.5 KiB
/*
|
|
|
|
Copyright (C) 2000 Stefan Westerfeld
|
|
stefan@space.twc.de
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Library General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2 of the License, or (at your option) any later version.
|
|
|
|
This library 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public License
|
|
along with this library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
Boston, MA 02110-1301, USA.
|
|
|
|
*/
|
|
|
|
#include "playtofile.h"
|
|
#include "flowsystem.h"
|
|
#include "stdsynthmodule.h"
|
|
#include "convert.h"
|
|
#include "stdio.h"
|
|
|
|
using namespace Arts;
|
|
using namespace std;
|
|
|
|
namespace Arts {
|
|
class PlayToFile_impl : virtual public PlayToFile_skel,
|
|
virtual public StdSynthModule
|
|
{
|
|
typedef unsigned char uchar;
|
|
unsigned char *outblock;
|
|
unsigned long maxsamples;
|
|
string _filename;
|
|
FILE *out;
|
|
public:
|
|
PlayToFile_impl() : _filename("-")
|
|
{
|
|
}
|
|
void filename(const string& newfilename) {
|
|
_filename = newfilename;
|
|
filename_changed(_filename);
|
|
}
|
|
|
|
string filename() { return _filename; }
|
|
|
|
void streamInit() {
|
|
maxsamples = 0;
|
|
outblock = 0;
|
|
if(_filename == "-")
|
|
out = stdout;
|
|
else
|
|
out = fopen(_filename.c_str(),"w");
|
|
}
|
|
void streamEnd() {
|
|
if(outblock)
|
|
{
|
|
delete[] outblock;
|
|
outblock = 0;
|
|
}
|
|
if(out != stdout)
|
|
{
|
|
fclose(out);
|
|
}
|
|
}
|
|
|
|
void calculateBlock(unsigned long samples)
|
|
{
|
|
if(samples > maxsamples)
|
|
{
|
|
maxsamples = samples;
|
|
|
|
if(outblock) delete[] outblock;
|
|
outblock = new uchar[maxsamples * 4]; // 2 channels, 16 bit
|
|
}
|
|
|
|
convert_stereo_2float_i16le(samples,left,right, outblock);
|
|
fwrite(outblock, 1, 4 * samples,out);
|
|
}
|
|
|
|
/*
|
|
* this is the most tricky part here - since we will run in a context
|
|
* where no audio hardware will play the "give me more data role",
|
|
* we'll have to request things ourselves (requireFlow() tells the
|
|
* flowsystem that more signal flow should happen, so that
|
|
* calculateBlock will get called
|
|
*/
|
|
void goOn()
|
|
{
|
|
_node()->requireFlow();
|
|
}
|
|
};
|
|
REGISTER_IMPLEMENTATION(PlayToFile_impl);
|
|
};
|