diff options
Diffstat (limited to 'src/decoder/FlacDecoderPlugin.cxx')
| -rw-r--r-- | src/decoder/FlacDecoderPlugin.cxx | 387 |
1 files changed, 0 insertions, 387 deletions
diff --git a/src/decoder/FlacDecoderPlugin.cxx b/src/decoder/FlacDecoderPlugin.cxx deleted file mode 100644 index 1b5734434..000000000 --- a/src/decoder/FlacDecoderPlugin.cxx +++ /dev/null @@ -1,387 +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" /* must be first for large file support */ -#include "FlacDecoderPlugin.h" -#include "FlacDomain.hxx" -#include "FlacCommon.hxx" -#include "FlacMetadata.hxx" -#include "OggCodec.hxx" -#include "util/Error.hxx" -#include "Log.hxx" - -#include <glib.h> - -#include <assert.h> - -#if !defined(FLAC_API_VERSION_CURRENT) || FLAC_API_VERSION_CURRENT <= 7 -#error libFLAC is too old -#endif - -static void flacPrintErroredState(FLAC__StreamDecoderState state) -{ - switch (state) { - case FLAC__STREAM_DECODER_SEARCH_FOR_METADATA: - case FLAC__STREAM_DECODER_READ_METADATA: - case FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC: - case FLAC__STREAM_DECODER_READ_FRAME: - case FLAC__STREAM_DECODER_END_OF_STREAM: - return; - - case FLAC__STREAM_DECODER_OGG_ERROR: - case FLAC__STREAM_DECODER_SEEK_ERROR: - case FLAC__STREAM_DECODER_ABORTED: - case FLAC__STREAM_DECODER_MEMORY_ALLOCATION_ERROR: - case FLAC__STREAM_DECODER_UNINITIALIZED: - break; - } - - LogError(flac_domain, FLAC__StreamDecoderStateString[state]); -} - -static void flacMetadata(gcc_unused const FLAC__StreamDecoder * dec, - const FLAC__StreamMetadata * block, void *vdata) -{ - flac_metadata_common_cb(block, (struct flac_data *) vdata); -} - -static FLAC__StreamDecoderWriteStatus -flac_write_cb(const FLAC__StreamDecoder *dec, const FLAC__Frame *frame, - const FLAC__int32 *const buf[], void *vdata) -{ - struct flac_data *data = (struct flac_data *) vdata; - FLAC__uint64 nbytes = 0; - - if (FLAC__stream_decoder_get_decode_position(dec, &nbytes)) { - if (data->position > 0 && nbytes > data->position) { - nbytes -= data->position; - data->position += nbytes; - } else { - data->position = nbytes; - nbytes = 0; - } - } else - nbytes = 0; - - return flac_common_write(data, frame, buf, nbytes); -} - -static bool -flac_scan_file(const char *file, - const struct tag_handler *handler, void *handler_ctx) -{ - FlacMetadataChain chain; - if (!chain.Read(file)) { - FormatDebug(flac_domain, - "Failed to read FLAC tags: %s", - chain.GetStatusString()); - return false; - } - - chain.Scan(handler, handler_ctx); - return true; -} - -static bool -flac_scan_stream(InputStream &is, - const struct tag_handler *handler, void *handler_ctx) -{ - FlacMetadataChain chain; - if (!chain.Read(is)) { - FormatDebug(flac_domain, - "Failed to read FLAC tags: %s", - chain.GetStatusString()); - return false; - } - - chain.Scan(handler, handler_ctx); - return true; -} - -/** - * Some glue code around FLAC__stream_decoder_new(). - */ -static FLAC__StreamDecoder * -flac_decoder_new(void) -{ - FLAC__StreamDecoder *sd = FLAC__stream_decoder_new(); - if (sd == nullptr) { - LogError(flac_domain, - "FLAC__stream_decoder_new() failed"); - return nullptr; - } - - if(!FLAC__stream_decoder_set_metadata_respond(sd, FLAC__METADATA_TYPE_VORBIS_COMMENT)) - LogDebug(flac_domain, - "FLAC__stream_decoder_set_metadata_respond() has failed"); - - return sd; -} - -static bool -flac_decoder_initialize(struct flac_data *data, FLAC__StreamDecoder *sd, - FLAC__uint64 duration) -{ - data->total_frames = duration; - - if (!FLAC__stream_decoder_process_until_end_of_metadata(sd)) { - LogWarning(flac_domain, "problem reading metadata"); - return false; - } - - if (data->initialized) { - /* done */ - decoder_initialized(data->decoder, data->audio_format, - data->input_stream.seekable, - (float)data->total_frames / - (float)data->audio_format.sample_rate); - return true; - } - - if (data->input_stream.seekable) - /* allow the workaround below only for nonseekable - streams*/ - return false; - - /* no stream_info packet found; try to initialize the decoder - from the first frame header */ - FLAC__stream_decoder_process_single(sd); - return data->initialized; -} - -static void -flac_decoder_loop(struct flac_data *data, FLAC__StreamDecoder *flac_dec, - FLAC__uint64 t_start, FLAC__uint64 t_end) -{ - Decoder &decoder = data->decoder; - - data->first_frame = t_start; - - while (true) { - DecoderCommand cmd; - if (!data->tag.IsEmpty()) { - cmd = decoder_tag(data->decoder, data->input_stream, - std::move(data->tag)); - data->tag.Clear(); - } else - cmd = decoder_get_command(decoder); - - if (cmd == DecoderCommand::SEEK) { - FLAC__uint64 seek_sample = t_start + - decoder_seek_where(decoder) * - data->audio_format.sample_rate; - if (seek_sample >= t_start && - (t_end == 0 || seek_sample <= t_end) && - FLAC__stream_decoder_seek_absolute(flac_dec, seek_sample)) { - data->next_frame = seek_sample; - data->position = 0; - decoder_command_finished(decoder); - } else - decoder_seek_error(decoder); - } else if (cmd == DecoderCommand::STOP || - FLAC__stream_decoder_get_state(flac_dec) == FLAC__STREAM_DECODER_END_OF_STREAM) - break; - - if (t_end != 0 && data->next_frame >= t_end) - /* end of this sub track */ - break; - - if (!FLAC__stream_decoder_process_single(flac_dec) && - decoder_get_command(decoder) == DecoderCommand::NONE) { - /* a failure that was not triggered by a - decoder command */ - flacPrintErroredState(FLAC__stream_decoder_get_state(flac_dec)); - break; - } - } -} - -static FLAC__StreamDecoderInitStatus -stream_init_oggflac(FLAC__StreamDecoder *flac_dec, struct flac_data *data) -{ - return FLAC__stream_decoder_init_ogg_stream(flac_dec, - FlacInput::Read, - FlacInput::Seek, - FlacInput::Tell, - FlacInput::Length, - FlacInput::Eof, - flac_write_cb, - flacMetadata, - FlacInput::Error, - data); -} - -static FLAC__StreamDecoderInitStatus -stream_init_flac(FLAC__StreamDecoder *flac_dec, struct flac_data *data) -{ - return FLAC__stream_decoder_init_stream(flac_dec, - FlacInput::Read, - FlacInput::Seek, - FlacInput::Tell, - FlacInput::Length, - FlacInput::Eof, - flac_write_cb, - flacMetadata, - FlacInput::Error, - data); -} - -static FLAC__StreamDecoderInitStatus -stream_init(FLAC__StreamDecoder *flac_dec, struct flac_data *data, bool is_ogg) -{ - return is_ogg - ? stream_init_oggflac(flac_dec, data) - : stream_init_flac(flac_dec, data); -} - -static void -flac_decode_internal(Decoder &decoder, - InputStream &input_stream, - bool is_ogg) -{ - FLAC__StreamDecoder *flac_dec; - - flac_dec = flac_decoder_new(); - if (flac_dec == nullptr) - return; - - struct flac_data data(decoder, input_stream); - - FLAC__StreamDecoderInitStatus status = - stream_init(flac_dec, &data, is_ogg); - if (status != FLAC__STREAM_DECODER_INIT_STATUS_OK) { - FLAC__stream_decoder_delete(flac_dec); - LogWarning(flac_domain, - FLAC__StreamDecoderInitStatusString[status]); - return; - } - - if (!flac_decoder_initialize(&data, flac_dec, 0)) { - FLAC__stream_decoder_finish(flac_dec); - FLAC__stream_decoder_delete(flac_dec); - return; - } - - flac_decoder_loop(&data, flac_dec, 0, 0); - - FLAC__stream_decoder_finish(flac_dec); - FLAC__stream_decoder_delete(flac_dec); -} - -static void -flac_decode(Decoder &decoder, InputStream &input_stream) -{ - flac_decode_internal(decoder, input_stream, false); -} - -static bool -oggflac_init(gcc_unused const config_param ¶m) -{ - return !!FLAC_API_SUPPORTS_OGG_FLAC; -} - -static bool -oggflac_scan_file(const char *file, - const struct tag_handler *handler, void *handler_ctx) -{ - FlacMetadataChain chain; - if (!chain.ReadOgg(file)) { - FormatDebug(flac_domain, - "Failed to read OggFLAC tags: %s", - chain.GetStatusString()); - return false; - } - - chain.Scan(handler, handler_ctx); - return true; -} - -static bool -oggflac_scan_stream(InputStream &is, - const struct tag_handler *handler, void *handler_ctx) -{ - FlacMetadataChain chain; - if (!chain.ReadOgg(is)) { - FormatDebug(flac_domain, - "Failed to read OggFLAC tags: %s", - chain.GetStatusString()); - return false; - } - - chain.Scan(handler, handler_ctx); - return true; -} - -static void -oggflac_decode(Decoder &decoder, InputStream &input_stream) -{ - if (ogg_codec_detect(&decoder, input_stream) != OGG_CODEC_FLAC) - return; - - /* rewind the stream, because ogg_codec_detect() has - moved it */ - input_stream.LockRewind(IgnoreError()); - - flac_decode_internal(decoder, input_stream, true); -} - -static const char *const oggflac_suffixes[] = { "ogg", "oga", nullptr }; -static const char *const oggflac_mime_types[] = { - "application/ogg", - "application/x-ogg", - "audio/ogg", - "audio/x-flac+ogg", - "audio/x-ogg", - nullptr -}; - -const struct DecoderPlugin oggflac_decoder_plugin = { - "oggflac", - oggflac_init, - nullptr, - oggflac_decode, - nullptr, - oggflac_scan_file, - oggflac_scan_stream, - nullptr, - oggflac_suffixes, - oggflac_mime_types, -}; - -static const char *const flac_suffixes[] = { "flac", nullptr }; -static const char *const flac_mime_types[] = { - "application/flac", - "application/x-flac", - "audio/flac", - "audio/x-flac", - nullptr -}; - -const struct DecoderPlugin flac_decoder_plugin = { - "flac", - nullptr, - nullptr, - flac_decode, - nullptr, - flac_scan_file, - flac_scan_stream, - nullptr, - flac_suffixes, - flac_mime_types, -}; |