141 lines
3.5 KiB
C++
141 lines
3.5 KiB
C++
/*
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* Copyright (C) 2003-2012 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef MPD_FLAC_METADATA_H
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#define MPD_FLAC_METADATA_H
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#include "gcc.h"
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#include "FLACIOHandle.hxx"
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#include <FLAC/metadata.h>
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#include <assert.h>
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class FLACMetadataChain {
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FLAC__Metadata_Chain *chain;
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public:
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FLACMetadataChain():chain(::FLAC__metadata_chain_new()) {}
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~FLACMetadataChain() {
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::FLAC__metadata_chain_delete(chain);
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}
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explicit operator FLAC__Metadata_Chain *() {
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return chain;
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}
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bool Read(const char *path) {
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return ::FLAC__metadata_chain_read(chain, path);
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}
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bool Read(FLAC__IOHandle handle, FLAC__IOCallbacks callbacks) {
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return ::FLAC__metadata_chain_read_with_callbacks(chain,
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handle,
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callbacks);
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}
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bool Read(input_stream *is) {
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return Read(::ToFLACIOHandle(is), ::GetFLACIOCallbacks(is));
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}
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bool ReadOgg(const char *path) {
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return ::FLAC__metadata_chain_read_ogg(chain, path);
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}
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bool ReadOgg(FLAC__IOHandle handle, FLAC__IOCallbacks callbacks) {
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return ::FLAC__metadata_chain_read_ogg_with_callbacks(chain,
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handle,
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callbacks);
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}
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bool ReadOgg(input_stream *is) {
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return ReadOgg(::ToFLACIOHandle(is), ::GetFLACIOCallbacks(is));
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}
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gcc_pure
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FLAC__Metadata_ChainStatus GetStatus() const {
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return ::FLAC__metadata_chain_status(chain);
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}
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gcc_pure
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const char *GetStatusString() const {
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return FLAC__Metadata_ChainStatusString[GetStatus()];
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}
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void Scan(const struct tag_handler *handler, void *handler_ctx);
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};
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class FLACMetadataIterator {
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FLAC__Metadata_Iterator *iterator;
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public:
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FLACMetadataIterator():iterator(::FLAC__metadata_iterator_new()) {}
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FLACMetadataIterator(FLACMetadataChain &chain)
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:iterator(::FLAC__metadata_iterator_new()) {
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::FLAC__metadata_iterator_init(iterator,
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(FLAC__Metadata_Chain *)chain);
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}
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~FLACMetadataIterator() {
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::FLAC__metadata_iterator_delete(iterator);
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}
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bool Next() {
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return ::FLAC__metadata_iterator_next(iterator);
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}
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gcc_pure
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FLAC__StreamMetadata *GetBlock() {
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return ::FLAC__metadata_iterator_get_block(iterator);
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}
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};
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struct tag_handler;
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struct tag;
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struct replay_gain_info;
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static inline unsigned
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flac_duration(const FLAC__StreamMetadata_StreamInfo *stream_info)
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{
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assert(stream_info->sample_rate > 0);
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return (stream_info->total_samples + stream_info->sample_rate - 1) /
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stream_info->sample_rate;
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}
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bool
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flac_parse_replay_gain(struct replay_gain_info *rgi,
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const FLAC__StreamMetadata *block);
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bool
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flac_parse_mixramp(char **mixramp_start, char **mixramp_end,
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const FLAC__StreamMetadata *block);
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void
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flac_vorbis_comments_to_tag(struct tag *tag,
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const FLAC__StreamMetadata_VorbisComment *comment);
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void
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flac_scan_metadata(const FLAC__StreamMetadata *block,
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const struct tag_handler *handler, void *handler_ctx);
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#endif
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