105 lines
2.5 KiB
C++
105 lines
2.5 KiB
C++
/*
|
|
* Copyright 2003-2018 The Music Player Daemon Project
|
|
* http://www.musicpd.org
|
|
*
|
|
* 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; if not, write to the Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
/*
|
|
* This program is a command line interface to MPD's PCM conversion
|
|
* library (pcm_convert.c).
|
|
*
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "AudioParser.hxx"
|
|
#include "AudioFormat.hxx"
|
|
#include "pcm/PcmConvert.hxx"
|
|
#include "util/ConstBuffer.hxx"
|
|
#include "util/StaticFifoBuffer.hxx"
|
|
#include "util/PrintException.hxx"
|
|
|
|
#include <assert.h>
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
|
|
int
|
|
main(int argc, char **argv)
|
|
try {
|
|
if (argc != 3) {
|
|
fprintf(stderr,
|
|
"Usage: run_convert IN_FORMAT OUT_FORMAT <IN >OUT\n");
|
|
return 1;
|
|
}
|
|
|
|
const auto in_audio_format = ParseAudioFormat(argv[1], false);
|
|
const auto out_audio_format_mask = ParseAudioFormat(argv[2], false);
|
|
|
|
const auto out_audio_format =
|
|
in_audio_format.WithMask(out_audio_format_mask);
|
|
|
|
const size_t in_frame_size = in_audio_format.GetFrameSize();
|
|
|
|
PcmConvert state;
|
|
state.Open(in_audio_format, out_audio_format);
|
|
|
|
StaticFifoBuffer<uint8_t, 4096> buffer;
|
|
|
|
while (true) {
|
|
{
|
|
const auto dest = buffer.Write();
|
|
assert(!dest.empty());
|
|
|
|
ssize_t nbytes = read(0, dest.data, dest.size);
|
|
if (nbytes <= 0)
|
|
break;
|
|
|
|
buffer.Append(nbytes);
|
|
}
|
|
|
|
auto src = buffer.Read();
|
|
assert(!src.empty());
|
|
|
|
src.size -= src.size % in_frame_size;
|
|
if (src.empty())
|
|
continue;
|
|
|
|
buffer.Consume(src.size);
|
|
|
|
auto output = state.Convert({src.data, src.size});
|
|
|
|
gcc_unused ssize_t ignored = write(1, output.data,
|
|
output.size);
|
|
}
|
|
|
|
while (true) {
|
|
auto output = state.Flush();
|
|
if (output.IsNull())
|
|
break;
|
|
|
|
gcc_unused ssize_t ignored = write(1, output.data,
|
|
output.size);
|
|
}
|
|
|
|
state.Close();
|
|
|
|
return EXIT_SUCCESS;
|
|
} catch (...) {
|
|
PrintException(std::current_exception());
|
|
return EXIT_FAILURE;
|
|
}
|