| /* libFLAC++ - Free Lossless Audio Codec library |
| * Copyright (C) 2002 Josh Coalson |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library 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 |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public |
| * License along with this library; if not, write to the |
| * Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| * Boston, MA 02111-1307, USA. |
| */ |
| |
| #ifndef FLACPP__METADATA_H |
| #define FLACPP__METADATA_H |
| |
| #include "FLAC/metadata.h" |
| |
| // =============================================================== |
| // |
| // Full documentation for the metadata interface can be found |
| // in the C layer in include/FLAC/metadata.h |
| // |
| // =============================================================== |
| |
| /** \file include/FLAC++/metadata.h |
| * |
| * \brief |
| * This module provides classes for creating and manipulating FLAC |
| * metadata blocks in memory, and three progressively more powerful |
| * interfaces for traversing and editing metadata in FLAC files. |
| * |
| * See the detailed documentation for each interface in the |
| * \link flacpp_metadata metadata \endlink module. |
| */ |
| |
| /** \defgroup flacpp_metadata FLAC++/metadata.h: metadata interfaces |
| * \ingroup flacpp |
| * |
| * \brief |
| * This module provides classes for creating and manipulating FLAC |
| * metadata blocks in memory, and three progressively more powerful |
| * interfaces for traversing and editing metadata in FLAC files. |
| * |
| * The behavior closely mimics the C layer interface; be sure to read |
| * the detailed description of the |
| * \link flac_metadata C metadata module \endlink. |
| */ |
| |
| |
| namespace FLAC { |
| namespace Metadata { |
| |
| // ============================================================ |
| // |
| // Metadata objects |
| // |
| // ============================================================ |
| |
| /** \defgroup flacpp_metadata_object FLAC++/metadata.h: metadata object classes |
| * \ingroup flacpp_metadata |
| * |
| * This module contains classes representing FLAC metadata |
| * blocks in memory. |
| * |
| * The behavior closely mimics the C layer interface; be |
| * sure to read the detailed description of the |
| * \link flac_metadata_object C metadata object module \endlink. |
| * |
| * Any time a metadata object is constructed or assigned, you |
| * should check is_valid() to make sure the underlying |
| * ::FLAC__StreamMetadata object was able to be created. |
| * |
| * \warning |
| * When the get_*() methods of any metadata object method |
| * return you a const pointer, DO NOT disobey and write into it. |
| * Always use the set_*() methods. |
| * |
| * \{ |
| */ |
| |
| /** Base class for all metadata block types. |
| */ |
| class Prototype { |
| protected: |
| //@{ |
| /** Constructs a copy of the given object. This form |
| * always performs a deep copy. |
| */ |
| Prototype(const Prototype &); |
| Prototype(const ::FLAC__StreamMetadata &); |
| Prototype(const ::FLAC__StreamMetadata *); |
| //@} |
| |
| /** Constructs an object with copy control. When \a copy |
| * is \c true, behaves identically to |
| * FLAC::Metadata::Prototype::Prototype(const ::FLAC__StreamMetadata *object). |
| * When \a copy is \c false, the instance takes ownership of |
| * the pointer and the ::FLAC__StreamMetadata object will |
| * be freed by the destructor. |
| * |
| * \assert |
| * \code object != NULL \endcode |
| */ |
| Prototype(::FLAC__StreamMetadata *object, bool copy); |
| |
| //@{ |
| /** Assign from another object. Always performs a deep copy. */ |
| void operator=(const Prototype &); |
| void operator=(const ::FLAC__StreamMetadata &); |
| void operator=(const ::FLAC__StreamMetadata *); |
| //@} |
| |
| /** Deletes the underlying ::FLAC__StreamMetadata object. |
| */ |
| virtual void clear(); |
| |
| ::FLAC__StreamMetadata *object_; |
| public: |
| /** Deletes the underlying ::FLAC__StreamMetadata object. |
| */ |
| virtual ~Prototype(); |
| |
| //@{ |
| /** Check for equality, performing a deep compare by following pointers. */ |
| inline bool operator==(const Prototype &) const; |
| inline bool operator==(const ::FLAC__StreamMetadata &) const; |
| inline bool operator==(const ::FLAC__StreamMetadata *) const; |
| //@} |
| |
| //@{ |
| /** Check for inequality, performing a deep compare by following pointers. */ |
| inline bool operator!=(const Prototype &) const; |
| inline bool operator!=(const ::FLAC__StreamMetadata &) const; |
| inline bool operator!=(const ::FLAC__StreamMetadata *) const; |
| //@} |
| |
| friend class SimpleIterator; |
| friend class Iterator; |
| |
| /** Returns \c true if the object was correctly constructed |
| * (i.e. the underlying ::FLAC__StreamMetadata object was |
| * properly allocated), else \c false. |
| */ |
| inline bool is_valid() const; |
| |
| /** Returns \c true if this block is the last block in a |
| * stream, else \c false. |
| * |
| * \assert |
| * \code is_valid() \endcode |
| */ |
| bool get_is_last() const; |
| |
| /** Returns the type of the block. |
| * |
| * \assert |
| * \code is_valid() \endcode |
| */ |
| ::FLAC__MetadataType get_type() const; |
| |
| /** Returns the stream length of the metadata block. |
| * |
| * \note |
| * The length does not include the metadata block header, |
| * per spec. |
| * |
| * \assert |
| * \code is_valid() \endcode |
| */ |
| unsigned get_length() const; |
| |
| /** Sets the "is_last" flag for the block. When using the iterators |
| * it is not necessary to set this flag; they will do it for you. |
| * |
| * \assert |
| * \code is_valid() \endcode |
| */ |
| void set_is_last(bool); |
| private: |
| /** Private and undefined so you can't use it. */ |
| Prototype(); |
| |
| // These are used only by Iterator |
| bool is_reference_; |
| inline void set_reference(bool x) { is_reference_ = x; } |
| }; |
| |
| inline bool Prototype::operator==(const Prototype &object) const |
| { return (bool)::FLAC__metadata_object_is_equal(object_, object.object_); } |
| |
| inline bool Prototype::operator==(const ::FLAC__StreamMetadata &object) const |
| { return (bool)::FLAC__metadata_object_is_equal(object_, &object); } |
| |
| inline bool Prototype::operator==(const ::FLAC__StreamMetadata *object) const |
| { return (bool)::FLAC__metadata_object_is_equal(object_, object); } |
| |
| inline bool Prototype::operator!=(const Prototype &object) const |
| { return !operator==(object); } |
| |
| inline bool Prototype::operator!=(const ::FLAC__StreamMetadata &object) const |
| { return !operator==(object); } |
| |
| inline bool Prototype::operator!=(const ::FLAC__StreamMetadata *object) const |
| { return !operator==(object); } |
| |
| inline bool Prototype::is_valid() const |
| { return 0 != object_; } |
| |
| /** Create a deep copy of an object and return it. */ |
| Prototype *clone(const Prototype *); |
| |
| |
| /** STREAMINFO metadata block. |
| */ |
| class StreamInfo : public Prototype { |
| public: |
| StreamInfo(); |
| |
| //@{ |
| /** Constructs a copy of the given object. This form |
| * always performs a deep copy. |
| */ |
| inline StreamInfo(const StreamInfo &object): Prototype(object) { } |
| inline StreamInfo(const ::FLAC__StreamMetadata &object): Prototype(object) { } |
| inline StreamInfo(const ::FLAC__StreamMetadata *object): Prototype(object) { } |
| //@} |
| |
| /** Constructs an object with copy control. See |
| * Prototype(::FLAC__StreamMetadata *object, bool copy). |
| * |
| * \assert |
| * \code object != NULL \endcode |
| */ |
| inline StreamInfo(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { } |
| |
| ~StreamInfo(); |
| |
| //@{ |
| /** Assign from another object. Always performs a deep copy. */ |
| inline void operator=(const StreamInfo &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); } |
| //@} |
| |
| //@{ |
| /** Check for equality, performing a deep compare by following pointers. */ |
| inline bool operator==(const StreamInfo &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); } |
| //@} |
| |
| //@{ |
| /** Check for inequality, performing a deep compare by following pointers. */ |
| inline bool operator!=(const StreamInfo &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); } |
| //@} |
| |
| unsigned get_min_blocksize() const; |
| unsigned get_max_blocksize() const; |
| unsigned get_min_framesize() const; |
| unsigned get_max_framesize() const; |
| unsigned get_sample_rate() const; |
| unsigned get_channels() const; |
| unsigned get_bits_per_sample() const; |
| FLAC__uint64 get_total_samples() const; |
| const FLAC__byte *get_md5sum() const; |
| |
| void set_min_blocksize(unsigned value); |
| void set_max_blocksize(unsigned value); |
| void set_min_framesize(unsigned value); |
| void set_max_framesize(unsigned value); |
| void set_sample_rate(unsigned value); |
| void set_channels(unsigned value); |
| void set_bits_per_sample(unsigned value); |
| void set_total_samples(FLAC__uint64 value); |
| void set_md5sum(const FLAC__byte value[16]); |
| }; |
| |
| /** PADDING block. |
| */ |
| class Padding : public Prototype { |
| public: |
| Padding(); |
| inline Padding(const Padding &object): Prototype(object) { } |
| inline Padding(const ::FLAC__StreamMetadata &object): Prototype(object) { } |
| inline Padding(const ::FLAC__StreamMetadata *object): Prototype(object) { } |
| inline Padding(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { } |
| ~Padding(); |
| |
| inline void operator=(const Padding &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); } |
| |
| inline bool operator==(const Padding &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); } |
| inline bool operator!=(const Padding &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); } |
| |
| void set_length(unsigned length); |
| }; |
| |
| /** APPLICATION block. |
| */ |
| class Application : public Prototype { |
| public: |
| Application(); |
| inline Application(const Application &object): Prototype(object) { } |
| inline Application(const ::FLAC__StreamMetadata &object): Prototype(object) { } |
| inline Application(const ::FLAC__StreamMetadata *object): Prototype(object) { } |
| inline Application(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { } |
| ~Application(); |
| |
| inline void operator=(const Application &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); } |
| |
| inline bool operator==(const Application &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); } |
| inline bool operator!=(const Application &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); } |
| |
| const FLAC__byte *get_id() const; |
| const FLAC__byte *get_data() const; |
| |
| void set_id(const FLAC__byte value[4]); |
| bool set_data(const FLAC__byte *data, unsigned length); // this form always copies |
| bool set_data(FLAC__byte *data, unsigned length, bool copy); |
| }; |
| |
| /** SEEKTABLE block. |
| */ |
| class SeekTable : public Prototype { |
| public: |
| SeekTable(); |
| inline SeekTable(const SeekTable &object): Prototype(object) { } |
| inline SeekTable(const ::FLAC__StreamMetadata &object): Prototype(object) { } |
| inline SeekTable(const ::FLAC__StreamMetadata *object): Prototype(object) { } |
| inline SeekTable(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { } |
| ~SeekTable(); |
| |
| inline void operator=(const SeekTable &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); } |
| |
| inline bool operator==(const SeekTable &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); } |
| inline bool operator!=(const SeekTable &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); } |
| |
| unsigned get_num_points() const; |
| ::FLAC__StreamMetadata_SeekPoint get_point(unsigned index) const; |
| |
| void set_point(unsigned index, const ::FLAC__StreamMetadata_SeekPoint &point); |
| bool insert_point(unsigned index, const ::FLAC__StreamMetadata_SeekPoint &point); |
| bool delete_point(unsigned index); |
| |
| bool is_legal() const; |
| }; |
| |
| /** VORBIS_COMMENT block. |
| */ |
| class VorbisComment : public Prototype { |
| public: |
| /** XXX class VorbisComment::Entry |
| */ |
| class Entry { |
| public: |
| Entry(); |
| Entry(const char *field, unsigned field_length); |
| Entry(const char *field_name, const char *field_value, unsigned field_value_length); |
| Entry(const Entry &entry); |
| void operator=(const Entry &entry); |
| |
| virtual ~Entry(); |
| |
| virtual bool is_valid() const; |
| |
| unsigned get_field_length() const; |
| unsigned get_field_name_length() const; |
| unsigned get_field_value_length() const; |
| |
| ::FLAC__StreamMetadata_VorbisComment_Entry get_entry() const; |
| const char *get_field() const; |
| const char *get_field_name() const; |
| const char *get_field_value() const; |
| |
| bool set_field(const char *field, unsigned field_length); |
| bool set_field_name(const char *field_name); |
| bool set_field_value(const char *field_value, unsigned field_value_length); |
| protected: |
| bool is_valid_; |
| ::FLAC__StreamMetadata_VorbisComment_Entry entry_; |
| char *field_name_; |
| unsigned field_name_length_; |
| char *field_value_; |
| unsigned field_value_length_; |
| private: |
| void zero(); |
| void clear(); |
| void clear_entry(); |
| void clear_field_name(); |
| void clear_field_value(); |
| void construct(const char *field, unsigned field_length); |
| void construct(const char *field_name, const char *field_value, unsigned field_value_length); |
| void compose_field(); |
| void parse_field(); |
| }; |
| |
| VorbisComment(); |
| inline VorbisComment(const VorbisComment &object): Prototype(object) { } |
| inline VorbisComment(const ::FLAC__StreamMetadata &object): Prototype(object) { } |
| inline VorbisComment(const ::FLAC__StreamMetadata *object): Prototype(object) { } |
| inline VorbisComment(::FLAC__StreamMetadata *object, bool copy): Prototype(object, copy) { } |
| ~VorbisComment(); |
| |
| inline void operator=(const VorbisComment &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata &object) { Prototype::operator=(object); } |
| inline void operator=(const ::FLAC__StreamMetadata *object) { Prototype::operator=(object); } |
| |
| inline bool operator==(const VorbisComment &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata &object) const { return Prototype::operator==(object); } |
| inline bool operator==(const ::FLAC__StreamMetadata *object) const { return Prototype::operator==(object); } |
| inline bool operator!=(const VorbisComment &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata &object) const { return Prototype::operator!=(object); } |
| inline bool operator!=(const ::FLAC__StreamMetadata *object) const { return Prototype::operator!=(object); } |
| |
| unsigned get_num_comments() const; |
| Entry get_vendor_string() const; // only the Entry's field name should be used |
| Entry get_comment(unsigned index) const; |
| |
| bool set_vendor_string(const Entry &entry); // only the Entry's field name will be used |
| bool set_comment(unsigned index, const Entry &entry); |
| bool insert_comment(unsigned index, const Entry &entry); |
| bool delete_comment(unsigned index); |
| }; |
| |
| /* \} */ |
| |
| |
| // ============================================================ |
| // |
| // Level 0 |
| // |
| // ============================================================ |
| |
| /** \defgroup flacpp_metadata_level0 FLAC++/metadata.h: metadata level 0 interface |
| * \ingroup flacpp_metadata |
| * |
| * \brief |
| * XXX |
| * |
| * Detailed XXX. |
| * |
| * \{ |
| */ |
| |
| bool get_streaminfo(const char *filename, StreamInfo &streaminfo); |
| |
| /* \} */ |
| |
| |
| // ============================================================ |
| // |
| // Level 1 |
| // |
| // ---------------------------------------------------------- |
| // |
| // The flow through the iterator in the C++ layer is similar |
| // to the C layer: |
| // |
| // * Create a SimpleIterator instance |
| // * Check SimpleIterator::is_valid() |
| // * Call SimpleIterator::init() and check the return |
| // * Traverse and/or edit. Edits are written to file |
| // immediately. |
| // * Destroy the SimpleIterator instance |
| // |
| // ---------------------------------------------------------- |
| // |
| // The ownership of pointers in the C++ layer follows that in |
| // the C layer, i.e. |
| // * The objects returned by get_block() are yours to |
| // modify, but changes are not reflected in the FLAC file |
| // until you call set_block(). The objects are also |
| // yours to delete; they are not automatically deleted |
| // when passed to set_block() or insert_block_after(). |
| // |
| // ============================================================ |
| |
| /** \defgroup flacpp_metadata_level1 FLAC++/metadata.h: metadata level 1 interface |
| * \ingroup flacpp_metadata |
| * |
| * \brief |
| * XXX |
| * |
| * Detailed XXX. |
| * |
| * \{ |
| */ |
| |
| /** XXX class SimpleIterator |
| */ |
| class SimpleIterator { |
| public: |
| /** XXX class SimpleIterator::Status |
| */ |
| class Status { |
| public: |
| inline Status(::FLAC__Metadata_SimpleIteratorStatus status): status_(status) { } |
| inline operator ::FLAC__Metadata_SimpleIteratorStatus() const { return status_; } |
| inline const char *as_cstring() const { return ::FLAC__Metadata_SimpleIteratorStatusString[status_]; } |
| protected: |
| ::FLAC__Metadata_SimpleIteratorStatus status_; |
| }; |
| |
| SimpleIterator(); |
| virtual ~SimpleIterator(); |
| |
| bool init(const char *filename, bool preserve_file_stats = false); |
| |
| bool is_valid() const; |
| Status status(); |
| bool is_writable() const; |
| |
| bool next(); |
| bool prev(); |
| |
| ::FLAC__MetadataType get_block_type() const; |
| Prototype *get_block(); |
| bool set_block(Prototype *block, bool use_padding = true); |
| bool insert_block_after(Prototype *block, bool use_padding = true); |
| bool delete_block(bool use_padding = true); |
| |
| protected: |
| ::FLAC__Metadata_SimpleIterator *iterator_; |
| void clear(); |
| }; |
| |
| /* \} */ |
| |
| |
| // ============================================================ |
| // |
| // Level 2 |
| // |
| // ---------------------------------------------------------- |
| // |
| // The flow through the iterator in the C++ layer is similar |
| // to the C layer: |
| // |
| // * Create a Chain instance |
| // * Check Chain::is_valid() |
| // * Call Chain::read() and check the return |
| // * Traverse and/or edit with an Iterator or with |
| // Chain::merge_padding() or Chain::sort_padding() |
| // * Write changes back to FLAC file with Chain::write() |
| // * Destroy the Chain instance |
| // |
| // ---------------------------------------------------------- |
| // |
| // The ownership of pointers in the C++ layer follows that in |
| // the C layer, i.e. |
| // * The objects returned by Iterator::get_block() are |
| // owned by the iterator and should not be deleted. |
| // When you modify the block, you are directly editing |
| // what's in the chain and do not need to call |
| // Iterator::set_block(). However the changes will not |
| // be reflected in the FLAC file until the chain is |
| // written with Chain::write(). |
| // |
| // * When you pass an object to Iterator::set_block(), |
| // Iterator::insert_block_before(), or |
| // Iterator::insert_block_after(), the iterator takes |
| // ownership of the block and it will be deleted with the |
| // chain. |
| // |
| // ============================================================ |
| |
| /** \defgroup flacpp_metadata_level2 FLAC++/metadata.h: metadata level 2 interface |
| * \ingroup flacpp_metadata |
| * |
| * \brief |
| * XXX |
| * |
| * Detailed XXX. |
| * |
| * \{ |
| */ |
| |
| /** XXX class Chain |
| */ |
| class Chain { |
| public: |
| /** XXX class Chain::Status |
| */ |
| class Status { |
| public: |
| inline Status(::FLAC__Metadata_ChainStatus status): status_(status) { } |
| inline operator ::FLAC__Metadata_ChainStatus() const { return status_; } |
| inline const char *as_cstring() const { return ::FLAC__Metadata_ChainStatusString[status_]; } |
| protected: |
| ::FLAC__Metadata_ChainStatus status_; |
| }; |
| |
| Chain(); |
| virtual ~Chain(); |
| |
| friend class Iterator; |
| |
| bool is_valid() const; |
| Status status(); |
| |
| bool read(const char *filename); |
| bool write(bool use_padding = true, bool preserve_file_stats = false); |
| |
| void merge_padding(); |
| void sort_padding(); |
| |
| protected: |
| ::FLAC__Metadata_Chain *chain_; |
| virtual void clear(); |
| }; |
| |
| /** XXX class Iterator |
| */ |
| class Iterator { |
| public: |
| Iterator(); |
| virtual ~Iterator(); |
| |
| bool is_valid() const; |
| |
| void init(Chain &chain); |
| |
| bool next(); |
| bool prev(); |
| |
| ::FLAC__MetadataType get_block_type() const; |
| Prototype *get_block(); |
| bool set_block(Prototype *block); |
| bool delete_block(bool replace_with_padding); |
| bool insert_block_before(Prototype *block); |
| bool insert_block_after(Prototype *block); |
| |
| protected: |
| ::FLAC__Metadata_Iterator *iterator_; |
| virtual void clear(); |
| }; |
| |
| /* \} */ |
| |
| }; |
| }; |
| |
| #endif |
| #if 0 |
| Prototype *clone(const Prototype *object) |
| { |
| FLAC__ASSERT(0 != object); |
| |
| const StreamInfo *streaminfo = dynamic_cast<const StreamInfo *>(object); |
| const Padding *padding = dynamic_cast<const Padding *>(object); |
| const Application *application = dynamic_cast<const Application *>(object); |
| const SeekTable *seektable = dynamic_cast<const SeekTable *>(object); |
| const VorbisComment *vorbiscomment = dynamic_cast<const VorbisComment *>(object); |
| |
| if(0 != streaminfo) |
| return new StreamInfo(*streaminfo); |
| else if(0 != padding) |
| return new Padding(*padding); |
| else if(0 != application) |
| return new Application(*application); |
| else if(0 != seektable) |
| return new SeekTable(*seektable); |
| else if(0 != vorbiscomment) |
| return new VorbisComment(*vorbiscomment); |
| else { |
| FLAC__ASSERT(0); |
| return 0; |
| } |
| } |
| |
| // |
| // StreamInfo |
| // |
| |
| StreamInfo::StreamInfo(): |
| Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_STREAMINFO), /*copy=*/false) |
| { } |
| |
| StreamInfo::~StreamInfo() |
| { } |
| |
| unsigned StreamInfo::get_min_blocksize() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.stream_info.min_blocksize; |
| } |
| |
| unsigned StreamInfo::get_max_blocksize() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.stream_info.max_blocksize; |
| } |
| |
| unsigned StreamInfo::get_min_framesize() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.stream_info.min_framesize; |
| } |
| |
| unsigned StreamInfo::get_max_framesize() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.stream_info.max_framesize; |
| } |
| |
| unsigned StreamInfo::get_sample_rate() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.stream_info.sample_rate; |
| } |
| |
| unsigned StreamInfo::get_channels() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.stream_info.channels; |
| } |
| |
| unsigned StreamInfo::get_bits_per_sample() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.stream_info.bits_per_sample; |
| } |
| |
| FLAC__uint64 StreamInfo::get_total_samples() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.stream_info.total_samples; |
| } |
| |
| const FLAC__byte *StreamInfo::get_md5sum() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.stream_info.md5sum; |
| } |
| |
| void StreamInfo::set_min_blocksize(unsigned value) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(value >= FLAC__MIN_BLOCK_SIZE); |
| FLAC__ASSERT(value <= FLAC__MAX_BLOCK_SIZE); |
| object_->data.stream_info.min_blocksize = value; |
| } |
| |
| void StreamInfo::set_max_blocksize(unsigned value) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(value >= FLAC__MIN_BLOCK_SIZE); |
| FLAC__ASSERT(value <= FLAC__MAX_BLOCK_SIZE); |
| object_->data.stream_info.max_blocksize = value; |
| } |
| |
| void StreamInfo::set_min_framesize(unsigned value) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(value < (1u < FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN)); |
| object_->data.stream_info.min_framesize = value; |
| } |
| |
| void StreamInfo::set_max_framesize(unsigned value) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(value < (1u < FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN)); |
| object_->data.stream_info.max_framesize = value; |
| } |
| |
| void StreamInfo::set_sample_rate(unsigned value) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(FLAC__format_sample_rate_is_valid(value)); |
| object_->data.stream_info.sample_rate = value; |
| } |
| |
| void StreamInfo::set_channels(unsigned value) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(value > 0); |
| FLAC__ASSERT(value <= FLAC__MAX_CHANNELS); |
| object_->data.stream_info.channels = value; |
| } |
| |
| void StreamInfo::set_bits_per_sample(unsigned value) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(value >= FLAC__MIN_BITS_PER_SAMPLE); |
| FLAC__ASSERT(value <= FLAC__MAX_BITS_PER_SAMPLE); |
| object_->data.stream_info.bits_per_sample = value; |
| } |
| |
| void StreamInfo::set_total_samples(FLAC__uint64 value) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(value < (1u << FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN)); |
| object_->data.stream_info.total_samples = value; |
| } |
| |
| void StreamInfo::set_md5sum(const FLAC__byte value[16]) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(0 != value); |
| memcpy(object_->data.stream_info.md5sum, value, 16); |
| } |
| |
| |
| // |
| // Padding |
| // |
| |
| Padding::Padding(): |
| Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_PADDING), /*copy=*/false) |
| { } |
| |
| Padding::~Padding() |
| { } |
| |
| void Padding::set_length(unsigned length) |
| { |
| FLAC__ASSERT(is_valid()); |
| object_->length = length; |
| } |
| |
| |
| // |
| // Application |
| // |
| |
| Application::Application(): |
| Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_APPLICATION), /*copy=*/false) |
| { } |
| |
| Application::~Application() |
| { } |
| |
| const FLAC__byte *Application::get_id() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.application.id; |
| } |
| |
| const FLAC__byte *Application::get_data() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.application.data; |
| } |
| |
| void Application::set_id(const FLAC__byte value[4]) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(0 != value); |
| memcpy(object_->data.application.id, value, 4); |
| } |
| |
| bool Application::set_data(const FLAC__byte *data, unsigned length) |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_object_application_set_data(object_, (FLAC__byte*)data, length, true); |
| } |
| |
| bool Application::set_data(FLAC__byte *data, unsigned length, bool copy) |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_object_application_set_data(object_, data, length, copy); |
| } |
| |
| |
| // |
| // SeekTable |
| // |
| |
| SeekTable::SeekTable(): |
| Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_SEEKTABLE), /*copy=*/false) |
| { } |
| |
| SeekTable::~SeekTable() |
| { } |
| |
| unsigned SeekTable::get_num_points() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.seek_table.num_points; |
| } |
| |
| ::FLAC__StreamMetadata_SeekPoint SeekTable::get_point(unsigned index) const |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(index < object_->data.seek_table.num_points); |
| return object_->data.seek_table.points[index]; |
| } |
| |
| void SeekTable::set_point(unsigned index, const ::FLAC__StreamMetadata_SeekPoint &point) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(index < object_->data.seek_table.num_points); |
| ::FLAC__metadata_object_seektable_set_point(object_, index, point); |
| } |
| |
| bool SeekTable::insert_point(unsigned index, const ::FLAC__StreamMetadata_SeekPoint &point) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(index <= object_->data.seek_table.num_points); |
| return (bool)::FLAC__metadata_object_seektable_insert_point(object_, index, point); |
| } |
| |
| bool SeekTable::delete_point(unsigned index) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(index < object_->data.seek_table.num_points); |
| return (bool)::FLAC__metadata_object_seektable_delete_point(object_, index); |
| } |
| |
| bool SeekTable::is_legal() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_object_seektable_is_legal(object_); |
| } |
| |
| |
| // |
| // VorbisComment::Entry |
| // |
| |
| VorbisComment::Entry::Entry() |
| { |
| zero(); |
| } |
| |
| VorbisComment::Entry::Entry(const char *field, unsigned field_length) |
| { |
| zero(); |
| construct(field, field_length); |
| } |
| |
| VorbisComment::Entry::Entry(const char *field_name, const char *field_value, unsigned field_value_length) |
| { |
| zero(); |
| construct(field_name, field_value, field_value_length); |
| } |
| |
| VorbisComment::Entry::Entry(const Entry &entry) |
| { |
| FLAC__ASSERT(entry.is_valid()); |
| zero(); |
| construct((const char *)entry.entry_.entry, entry.entry_.length); |
| } |
| |
| void VorbisComment::Entry::operator=(const Entry &entry) |
| { |
| FLAC__ASSERT(entry.is_valid()); |
| clear(); |
| construct((const char *)entry.entry_.entry, entry.entry_.length); |
| } |
| |
| VorbisComment::Entry::~Entry() |
| { |
| clear(); |
| } |
| |
| bool VorbisComment::Entry::is_valid() const |
| { |
| return is_valid_; |
| } |
| |
| unsigned VorbisComment::Entry::get_field_length() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return entry_.length; |
| } |
| |
| unsigned VorbisComment::Entry::get_field_name_length() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return field_name_length_; |
| } |
| |
| unsigned VorbisComment::Entry::get_field_value_length() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return field_value_length_; |
| } |
| |
| ::FLAC__StreamMetadata_VorbisComment_Entry VorbisComment::Entry::get_entry() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return entry_; |
| } |
| |
| const char *VorbisComment::Entry::get_field() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return (const char *)entry_.entry; |
| } |
| |
| const char *VorbisComment::Entry::get_field_name() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return field_name_; |
| } |
| |
| const char *VorbisComment::Entry::get_field_value() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return field_value_; |
| } |
| |
| bool VorbisComment::Entry::set_field(const char *field, unsigned field_length) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(0 != field); |
| |
| clear_entry(); |
| |
| if(0 == (entry_.entry = (FLAC__byte*)malloc(field_length))) { |
| is_valid_ = false; |
| } |
| else { |
| entry_.length = field_length; |
| memcpy(entry_.entry, field, field_length); |
| (void) parse_field(); |
| } |
| |
| return is_valid_; |
| } |
| |
| bool VorbisComment::Entry::set_field_name(const char *field_name) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(0 != field_name); |
| |
| clear_field_name(); |
| |
| if(0 == (field_name_ = strdup(field_name))) { |
| is_valid_ = false; |
| } |
| else { |
| field_name_length_ = strlen(field_name_); |
| compose_field(); |
| } |
| |
| return is_valid_; |
| } |
| |
| bool VorbisComment::Entry::set_field_value(const char *field_value, unsigned field_value_length) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(0 != field_value); |
| |
| clear_field_value(); |
| |
| if(0 == (field_value_ = (char *)malloc(field_value_length))) { |
| is_valid_ = false; |
| } |
| else { |
| field_value_length_ = field_value_length; |
| memcpy(field_value_, field_value, field_value_length); |
| compose_field(); |
| } |
| |
| return is_valid_; |
| } |
| |
| void VorbisComment::Entry::zero() |
| { |
| is_valid_ = true; |
| entry_.length = 0; |
| entry_.entry = 0; |
| field_name_ = 0; |
| field_name_length_ = 0; |
| field_value_ = 0; |
| field_value_length_ = 0; |
| } |
| |
| void VorbisComment::Entry::clear() |
| { |
| clear_entry(); |
| clear_field_name(); |
| clear_field_value(); |
| is_valid_ = true; |
| } |
| |
| void VorbisComment::Entry::clear_entry() |
| { |
| if(0 != entry_.entry) { |
| free(entry_.entry); |
| entry_.entry = 0; |
| entry_.length = 0; |
| } |
| } |
| |
| void VorbisComment::Entry::clear_field_name() |
| { |
| if(0 != field_name_) { |
| free(field_name_); |
| field_name_ = 0; |
| field_name_length_ = 0; |
| } |
| } |
| |
| void VorbisComment::Entry::clear_field_value() |
| { |
| if(0 != field_value_) { |
| free(field_value_); |
| field_value_ = 0; |
| field_value_length_ = 0; |
| } |
| } |
| |
| void VorbisComment::Entry::construct(const char *field, unsigned field_length) |
| { |
| if(set_field(field, field_length)) |
| parse_field(); |
| } |
| |
| void VorbisComment::Entry::construct(const char *field_name, const char *field_value, unsigned field_value_length) |
| { |
| if(set_field_name(field_name) && set_field_value(field_value, field_value_length)) |
| compose_field(); |
| } |
| |
| void VorbisComment::Entry::compose_field() |
| { |
| clear_entry(); |
| |
| if(0 == (entry_.entry = (FLAC__byte*)malloc(field_name_length_ + 1 + field_value_length_))) { |
| is_valid_ = false; |
| } |
| else { |
| memcpy(entry_.entry, field_name_, field_name_length_); |
| entry_.length += field_name_length_; |
| memcpy(entry_.entry + entry_.length, "=", 1); |
| entry_.length += 1; |
| memcpy(entry_.entry + entry_.length, field_value_, field_value_length_); |
| entry_.length += field_value_length_; |
| is_valid_ = true; |
| } |
| } |
| |
| void VorbisComment::Entry::parse_field() |
| { |
| clear_field_name(); |
| clear_field_value(); |
| |
| const char *p = (const char *)memchr(entry_.entry, '=', entry_.length); |
| |
| if(0 == p) |
| p = (const char *)entry_.entry + entry_.length; |
| |
| field_name_length_ = p - (const char *)entry_.entry; |
| if(0 == (field_name_ = (char *)malloc(field_name_length_ + 1))) { // +1 for the trailing \0 |
| is_valid_ = false; |
| return; |
| } |
| memcpy(field_name_, entry_.entry, field_name_length_); |
| field_name_[field_name_length_] = '\0'; |
| |
| if(entry_.length - field_name_length_ == 0) { |
| field_value_length_ = 0; |
| if(0 == (field_value_ = (char *)malloc(0))) { |
| is_valid_ = false; |
| return; |
| } |
| } |
| else { |
| field_value_length_ = entry_.length - field_name_length_ - 1; |
| if(0 == (field_value_ = (char *)malloc(field_value_length_))) { |
| is_valid_ = false; |
| return; |
| } |
| memcpy(field_value_, ++p, field_value_length_); |
| } |
| |
| is_valid_ = true; |
| } |
| |
| |
| // |
| // VorbisComment |
| // |
| |
| VorbisComment::VorbisComment(): |
| Prototype(FLAC__metadata_object_new(FLAC__METADATA_TYPE_VORBIS_COMMENT), /*copy=*/false) |
| { } |
| |
| VorbisComment::~VorbisComment() |
| { } |
| |
| unsigned VorbisComment::get_num_comments() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return object_->data.vorbis_comment.num_comments; |
| } |
| |
| VorbisComment::Entry VorbisComment::get_vendor_string() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return Entry((const char *)object_->data.vorbis_comment.vendor_string.entry, object_->data.vorbis_comment.vendor_string.length); |
| } |
| |
| VorbisComment::Entry VorbisComment::get_comment(unsigned index) const |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(index < object_->data.vorbis_comment.num_comments); |
| return Entry((const char *)object_->data.vorbis_comment.comments[index].entry, object_->data.vorbis_comment.comments[index].length); |
| } |
| |
| bool VorbisComment::set_vendor_string(const VorbisComment::Entry &entry) |
| { |
| FLAC__ASSERT(is_valid()); |
| // vendor_string is a special kind of entry |
| ::FLAC__StreamMetadata_VorbisComment_Entry vendor_string; |
| vendor_string.length = entry.get_field_name_length(); |
| vendor_string.entry = (FLAC__byte*)entry.get_field_name(); // we can cheat on const-ness because we make a copy below: |
| return (bool)::FLAC__metadata_object_vorbiscomment_set_vendor_string(object_, vendor_string, /*copy=*/true); |
| } |
| |
| bool VorbisComment::set_comment(unsigned index, const VorbisComment::Entry &entry) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(index < object_->data.vorbis_comment.num_comments); |
| return (bool)::FLAC__metadata_object_vorbiscomment_set_comment(object_, index, entry.get_entry(), /*copy=*/true); |
| } |
| |
| bool VorbisComment::insert_comment(unsigned index, const VorbisComment::Entry &entry) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(index <= object_->data.vorbis_comment.num_comments); |
| return (bool)::FLAC__metadata_object_vorbiscomment_insert_comment(object_, index, entry.get_entry(), /*copy=*/true); |
| } |
| |
| bool VorbisComment::delete_comment(unsigned index) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(index < object_->data.vorbis_comment.num_comments); |
| return (bool)::FLAC__metadata_object_vorbiscomment_delete_comment(object_, index); |
| } |
| |
| |
| // ============================================================ |
| // |
| // Level 0 |
| // |
| // ============================================================ |
| |
| bool get_streaminfo(const char *filename, StreamInfo &streaminfo) |
| { |
| FLAC__ASSERT(0 != filename); |
| |
| ::FLAC__StreamMetadata s; |
| |
| if(::FLAC__metadata_get_streaminfo(filename, &s)) { |
| streaminfo = s; |
| return true; |
| } |
| else |
| return false; |
| } |
| |
| |
| // ============================================================ |
| // |
| // Level 1 |
| // |
| // ============================================================ |
| |
| SimpleIterator::SimpleIterator(): |
| iterator_(::FLAC__metadata_simple_iterator_new()) |
| { } |
| |
| SimpleIterator::~SimpleIterator() |
| { |
| clear(); |
| } |
| |
| void SimpleIterator::clear() |
| { |
| if(0 != iterator_) |
| FLAC__metadata_simple_iterator_delete(iterator_); |
| iterator_ = 0; |
| } |
| |
| bool SimpleIterator::init(const char *filename, bool preserve_file_stats) |
| { |
| FLAC__ASSERT(0 != filename); |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_simple_iterator_init(iterator_, filename, preserve_file_stats); |
| } |
| |
| bool SimpleIterator::is_valid() const |
| { |
| return 0 != iterator_; |
| } |
| |
| SimpleIterator::Status SimpleIterator::status() |
| { |
| FLAC__ASSERT(is_valid()); |
| return Status(::FLAC__metadata_simple_iterator_status(iterator_)); |
| } |
| |
| bool SimpleIterator::is_writable() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_simple_iterator_is_writable(iterator_); |
| } |
| |
| bool SimpleIterator::next() |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_simple_iterator_next(iterator_); |
| } |
| |
| bool SimpleIterator::prev() |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_simple_iterator_prev(iterator_); |
| } |
| |
| ::FLAC__MetadataType SimpleIterator::get_block_type() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return ::FLAC__metadata_simple_iterator_get_block_type(iterator_); |
| } |
| |
| Prototype *SimpleIterator::get_block() |
| { |
| FLAC__ASSERT(is_valid()); |
| return local::construct_block(::FLAC__metadata_simple_iterator_get_block(iterator_)); |
| } |
| |
| bool SimpleIterator::set_block(Prototype *block, bool use_padding) |
| { |
| FLAC__ASSERT(0 != block); |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_simple_iterator_set_block(iterator_, block->object_, use_padding); |
| } |
| |
| bool SimpleIterator::insert_block_after(Prototype *block, bool use_padding) |
| { |
| FLAC__ASSERT(0 != block); |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_simple_iterator_insert_block_after(iterator_, block->object_, use_padding); |
| } |
| |
| bool SimpleIterator::delete_block(bool use_padding) |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_simple_iterator_delete_block(iterator_, use_padding); |
| } |
| |
| |
| // ============================================================ |
| // |
| // Level 2 |
| // |
| // ============================================================ |
| |
| Chain::Chain(): |
| chain_(::FLAC__metadata_chain_new()) |
| { } |
| |
| Chain::~Chain() |
| { |
| clear(); |
| } |
| |
| void Chain::clear() |
| { |
| if(0 != chain_) |
| FLAC__metadata_chain_delete(chain_); |
| chain_ = 0; |
| } |
| |
| bool Chain::is_valid() const |
| { |
| return 0 != chain_; |
| } |
| |
| Chain::Status Chain::status() |
| { |
| FLAC__ASSERT(is_valid()); |
| return Status(::FLAC__metadata_chain_status(chain_)); |
| } |
| |
| bool Chain::read(const char *filename) |
| { |
| FLAC__ASSERT(0 != filename); |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_chain_read(chain_, filename); |
| } |
| |
| bool Chain::write(bool use_padding, bool preserve_file_stats) |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_chain_write(chain_, use_padding, preserve_file_stats); |
| } |
| |
| void Chain::merge_padding() |
| { |
| FLAC__ASSERT(is_valid()); |
| ::FLAC__metadata_chain_merge_padding(chain_); |
| } |
| |
| void Chain::sort_padding() |
| { |
| FLAC__ASSERT(is_valid()); |
| ::FLAC__metadata_chain_sort_padding(chain_); |
| } |
| |
| |
| Iterator::Iterator(): |
| iterator_(::FLAC__metadata_iterator_new()) |
| { } |
| |
| Iterator::~Iterator() |
| { |
| clear(); |
| } |
| |
| void Iterator::clear() |
| { |
| if(0 != iterator_) |
| FLAC__metadata_iterator_delete(iterator_); |
| iterator_ = 0; |
| } |
| |
| bool Iterator::is_valid() const |
| { |
| return 0 != iterator_; |
| } |
| |
| void Iterator::init(Chain &chain) |
| { |
| FLAC__ASSERT(is_valid()); |
| FLAC__ASSERT(chain.is_valid()); |
| ::FLAC__metadata_iterator_init(iterator_, chain.chain_); |
| } |
| |
| bool Iterator::next() |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_iterator_next(iterator_); |
| } |
| |
| bool Iterator::prev() |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_iterator_prev(iterator_); |
| } |
| |
| ::FLAC__MetadataType Iterator::get_block_type() const |
| { |
| FLAC__ASSERT(is_valid()); |
| return ::FLAC__metadata_iterator_get_block_type(iterator_); |
| } |
| |
| Prototype *Iterator::get_block() |
| { |
| FLAC__ASSERT(is_valid()); |
| Prototype *block = local::construct_block(::FLAC__metadata_iterator_get_block(iterator_)); |
| if(0 != block) |
| block->set_reference(true); |
| return block; |
| } |
| |
| bool Iterator::set_block(Prototype *block) |
| { |
| FLAC__ASSERT(0 != block); |
| FLAC__ASSERT(is_valid()); |
| bool ret = (bool)::FLAC__metadata_iterator_set_block(iterator_, block->object_); |
| if(ret) { |
| block->set_reference(true); |
| delete block; |
| } |
| return ret; |
| } |
| |
| bool Iterator::delete_block(bool replace_with_padding) |
| { |
| FLAC__ASSERT(is_valid()); |
| return (bool)::FLAC__metadata_iterator_delete_block(iterator_, replace_with_padding); |
| } |
| |
| bool Iterator::insert_block_before(Prototype *block) |
| { |
| FLAC__ASSERT(0 != block); |
| FLAC__ASSERT(is_valid()); |
| bool ret = (bool)::FLAC__metadata_iterator_insert_block_before(iterator_, block->object_); |
| if(ret) { |
| block->set_reference(true); |
| delete block; |
| } |
| return ret; |
| } |
| |
| bool Iterator::insert_block_after(Prototype *block) |
| { |
| FLAC__ASSERT(0 != block); |
| FLAC__ASSERT(is_valid()); |
| bool ret = (bool)::FLAC__metadata_iterator_insert_block_after(iterator_, block->object_); |
| if(ret) { |
| block->set_reference(true); |
| delete block; |
| } |
| return ret; |
| } |
| |
| }; |
| }; |
| #endif |