/* * Copyright 2003-2017 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 #include #include #include #include int main(int argc, char **argv) try { if (argc != 3) { fprintf(stderr, "Usage: run_convert IN_FORMAT OUT_FORMAT 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 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; }