diff options
Diffstat (limited to '')
| -rw-r--r-- | src/decoder/AudiofileDecoderPlugin.cxx | 282 |
1 files changed, 0 insertions, 282 deletions
diff --git a/src/decoder/AudiofileDecoderPlugin.cxx b/src/decoder/AudiofileDecoderPlugin.cxx deleted file mode 100644 index 3fb23bc20..000000000 --- a/src/decoder/AudiofileDecoderPlugin.cxx +++ /dev/null @@ -1,282 +0,0 @@ -/* - * Copyright (C) 2003-2013 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. - */ - -#include "config.h" -#include "AudiofileDecoderPlugin.hxx" -#include "DecoderAPI.hxx" -#include "InputStream.hxx" -#include "CheckAudioFormat.hxx" -#include "tag/TagHandler.hxx" -#include "util/Error.hxx" -#include "util/Domain.hxx" -#include "Log.hxx" - -#include <audiofile.h> -#include <af_vfs.h> - -#include <assert.h> -#include <stdio.h> - -/* pick 1020 since its devisible for 8,16,24, and 32-bit audio */ -#define CHUNK_SIZE 1020 - -static constexpr Domain audiofile_domain("audiofile"); - -struct AudioFileInputStream { - Decoder *const decoder; - InputStream &is; - - size_t Read(void *buffer, size_t size) { - /* libaudiofile does not like partial reads at all, - and wil abort playback; therefore always force full - reads */ - return decoder_read_full(decoder, is, buffer, size) - ? size - : 0; - } -}; - -static int audiofile_get_duration(const char *file) -{ - int total_time; - AFfilehandle af_fp = afOpenFile(file, "r", nullptr); - if (af_fp == AF_NULL_FILEHANDLE) { - return -1; - } - total_time = (int) - ((double)afGetFrameCount(af_fp, AF_DEFAULT_TRACK) - / afGetRate(af_fp, AF_DEFAULT_TRACK)); - afCloseFile(af_fp); - return total_time; -} - -static ssize_t -audiofile_file_read(AFvirtualfile *vfile, void *data, size_t length) -{ - AudioFileInputStream &afis = *(AudioFileInputStream *)vfile->closure; - - return afis.Read(data, length); -} - -static AFfileoffset -audiofile_file_length(AFvirtualfile *vfile) -{ - AudioFileInputStream &afis = *(AudioFileInputStream *)vfile->closure; - InputStream &is = afis.is; - - return is.GetSize(); -} - -static AFfileoffset -audiofile_file_tell(AFvirtualfile *vfile) -{ - AudioFileInputStream &afis = *(AudioFileInputStream *)vfile->closure; - InputStream &is = afis.is; - - return is.GetOffset(); -} - -static void -audiofile_file_destroy(AFvirtualfile *vfile) -{ - assert(vfile->closure != nullptr); - - vfile->closure = nullptr; -} - -static AFfileoffset -audiofile_file_seek(AFvirtualfile *vfile, AFfileoffset offset, int is_relative) -{ - AudioFileInputStream &afis = *(AudioFileInputStream *)vfile->closure; - InputStream &is = afis.is; - - int whence = (is_relative ? SEEK_CUR : SEEK_SET); - - Error error; - if (is.LockSeek(offset, whence, error)) { - return is.GetOffset(); - } else { - return -1; - } -} - -static AFvirtualfile * -setup_virtual_fops(AudioFileInputStream &afis) -{ - AFvirtualfile *vf = new AFvirtualfile(); - vf->closure = &afis; - vf->write = nullptr; - vf->read = audiofile_file_read; - vf->length = audiofile_file_length; - vf->destroy = audiofile_file_destroy; - vf->seek = audiofile_file_seek; - vf->tell = audiofile_file_tell; - return vf; -} - -static SampleFormat -audiofile_bits_to_sample_format(int bits) -{ - switch (bits) { - case 8: - return SampleFormat::S8; - - case 16: - return SampleFormat::S16; - - case 24: - return SampleFormat::S24_P32; - - case 32: - return SampleFormat::S32; - } - - return SampleFormat::UNDEFINED; -} - -static SampleFormat -audiofile_setup_sample_format(AFfilehandle af_fp) -{ - int fs, bits; - - afGetSampleFormat(af_fp, AF_DEFAULT_TRACK, &fs, &bits); - if (!audio_valid_sample_format(audiofile_bits_to_sample_format(bits))) { - FormatDebug(audiofile_domain, - "input file has %d bit samples, converting to 16", - bits); - bits = 16; - } - - afSetVirtualSampleFormat(af_fp, AF_DEFAULT_TRACK, - AF_SAMPFMT_TWOSCOMP, bits); - afGetVirtualSampleFormat(af_fp, AF_DEFAULT_TRACK, &fs, &bits); - - return audiofile_bits_to_sample_format(bits); -} - -static void -audiofile_stream_decode(Decoder &decoder, InputStream &is) -{ - AFvirtualfile *vf; - int fs, frame_count; - AFfilehandle af_fp; - AudioFormat audio_format; - float total_time; - uint16_t bit_rate; - int ret; - char chunk[CHUNK_SIZE]; - - if (!is.IsSeekable()) { - LogWarning(audiofile_domain, "not seekable"); - return; - } - - AudioFileInputStream afis{&decoder, is}; - vf = setup_virtual_fops(afis); - - af_fp = afOpenVirtualFile(vf, "r", nullptr); - if (af_fp == AF_NULL_FILEHANDLE) { - LogWarning(audiofile_domain, "failed to input stream"); - return; - } - - Error error; - if (!audio_format_init_checked(audio_format, - afGetRate(af_fp, AF_DEFAULT_TRACK), - audiofile_setup_sample_format(af_fp), - afGetVirtualChannels(af_fp, AF_DEFAULT_TRACK), - error)) { - LogError(error); - afCloseFile(af_fp); - return; - } - - frame_count = afGetFrameCount(af_fp, AF_DEFAULT_TRACK); - - total_time = ((float)frame_count / (float)audio_format.sample_rate); - - bit_rate = (uint16_t)(is.GetSize() * 8.0 / total_time / 1000.0 + 0.5); - - fs = (int)afGetVirtualFrameSize(af_fp, AF_DEFAULT_TRACK, 1); - - decoder_initialized(decoder, audio_format, true, total_time); - - DecoderCommand cmd; - do { - ret = afReadFrames(af_fp, AF_DEFAULT_TRACK, chunk, - CHUNK_SIZE / fs); - if (ret <= 0) - break; - - cmd = decoder_data(decoder, nullptr, - chunk, ret * fs, - bit_rate); - - if (cmd == DecoderCommand::SEEK) { - AFframecount frame = decoder_seek_where(decoder) * - audio_format.sample_rate; - afSeekFrame(af_fp, AF_DEFAULT_TRACK, frame); - - decoder_command_finished(decoder); - cmd = DecoderCommand::NONE; - } - } while (cmd == DecoderCommand::NONE); - - afCloseFile(af_fp); -} - -static bool -audiofile_scan_file(const char *file, - const struct tag_handler *handler, void *handler_ctx) -{ - int total_time = audiofile_get_duration(file); - - if (total_time < 0) { - FormatWarning(audiofile_domain, - "Failed to get total song time from: %s", - file); - return false; - } - - tag_handler_invoke_duration(handler, handler_ctx, total_time); - return true; -} - -static const char *const audiofile_suffixes[] = { - "wav", "au", "aiff", "aif", nullptr -}; - -static const char *const audiofile_mime_types[] = { - "audio/x-wav", - "audio/x-aiff", - nullptr -}; - -const struct DecoderPlugin audiofile_decoder_plugin = { - "audiofile", - nullptr, - nullptr, - audiofile_stream_decode, - nullptr, - audiofile_scan_file, - nullptr, - nullptr, - audiofile_suffixes, - audiofile_mime_types, -}; |