mpd/test/run_encoder.cxx

80 lines
1.7 KiB
C++

// SPDX-License-Identifier: GPL-2.0-or-later
// Copyright The Music Player Daemon Project
#include "encoder/EncoderList.hxx"
#include "encoder/EncoderPlugin.hxx"
#include "encoder/EncoderInterface.hxx"
#include "encoder/ToOutputStream.hxx"
#include "pcm/AudioFormat.hxx"
#include "pcm/AudioParser.hxx"
#include "config/Block.hxx"
#include "io/StdioOutputStream.hxx"
#include "util/PrintException.hxx"
#include <exception>
#include <memory>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
int main(int argc, char **argv)
try {
const char *encoder_name;
/* parse command line */
if (argc > 3) {
fprintf(stderr,
"Usage: run_encoder [ENCODER] [FORMAT] <IN >OUT\n");
return EXIT_FAILURE;
}
if (argc > 1)
encoder_name = argv[1];
else
encoder_name = "vorbis";
/* create the encoder */
const auto plugin = encoder_plugin_get(encoder_name);
if (plugin == nullptr) {
fprintf(stderr, "No such encoder: %s\n", encoder_name);
return EXIT_FAILURE;
}
ConfigBlock block;
block.AddBlockParam("quality", "5.0", -1);
std::unique_ptr<PreparedEncoder> p_encoder(encoder_init(*plugin, block));
/* open the encoder */
AudioFormat audio_format(44100, SampleFormat::S16, 2);
if (argc > 2)
audio_format = ParseAudioFormat(argv[2], false);
std::unique_ptr<Encoder> encoder(p_encoder->Open(audio_format));
StdioOutputStream os(stdout);
EncoderToOutputStream(os, *encoder);
/* do it */
static std::byte buffer[32768];
ssize_t nbytes;
while ((nbytes = read(0, buffer, sizeof(buffer))) > 0) {
encoder->Write(std::span{buffer}.first(nbytes));
EncoderToOutputStream(os, *encoder);
}
encoder->End();
EncoderToOutputStream(os, *encoder);
return EXIT_SUCCESS;
} catch (...) {
PrintException(std::current_exception());
return EXIT_FAILURE;
}