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changelog
This is an informal changelog, a summary of changes in each release.  Particulary important for developers is the precise description of changes to the library interfaces.
FLAC 1.1.2
General:
Sped up decoding by a few percent overall.
Sped up encoding when not using LPC (i.e. when using
flac
options
-0
,
-1
,
-2
, or
-l 0
).
Fixed a decoding bug that could cause sync errors with some ID3v1-tagged FLAC files.
Added
documentation.html#metaflac
HTML documentation for metaflac
.
FLAC format:
(none)
Ogg FLAC format:
(none)
flac:
New option
documentation.html#flac_options_input_size
--input-size
to manually specify the input size when encoding raw samples from stdin.
metaflac:
(none)
plugins:
Added support for HTTP streaming in XMMS plugin.
NOTE
: there is a
http://bugs.xmms.org/show_bug.cgi?id=2038
bug
in the XMMS mpg123 plugin that hijacks FLAC streams; to fix it you will need to add the '.flac' extension to the list of exceptions in
Input/mpg123/mpg123.c:is_our_file()
in the XMMS sources and recompile.
build system:
(none)
libraries:
libFLAC: Sped up Rice block decoding in the bitbuffer, resulting in decoding speed gains of a few percent.
libFLAC: Sped up encoding when not using LPC (i.e.
max_lpc_order == 0
).
libFLAC: Trailing NUL characters maintained on Vorbis comment entries so they can be treated like C strings.
libFLAC: More FLAC tag (i.e. Vorbis comment) validation.
libFLAC: Fixed a bug in the logic that determines the frame or sample number in a frame header; the bug could cause sync errors with some ID3v1-tagged FLAC files.
libFLAC, libOggFLAC: Can now be compiled to use only integer instructions, including encoding.  The decoder is almost completely integer anyway but there were a couple places that needed a fixed-point replacement.  There is no fixed-point version of LPC analysis yet, so if libFLAC is compiled integer-only, the encoder will behave as if the max LPC order is 0 (i.e. used fixed predictors only).  LPC decoding is supported in all cases as it always was integer-only.
Interface changes:
libFLAC:
Changed:
Metadata object interface now maintains a trailing NUL on Vorbis comment entries for convenience.
Changed:
Metadata object interface now validates all Vorbis comment entries on input and returns false if an entry does not conform to the Vorbis comment spec.
Added
FLAC__format_vorbiscomment_entry_name_is_legal()
Added
FLAC__format_vorbiscomment_entry_value_is_legal()
Added
FLAC__format_vorbiscomment_entry_is_legal()
Added
FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair()
Added
FLAC__metadata_object_vorbiscomment_entry_to_name_value_pair()
Changed
the signature of FLAC__metadata_object_vorbiscomment_entry_matches(): the first argument is now
FLAC__StreamMetadata_VorbisComment_Entry entry
(was
const FLAC__StreamMetadata_VorbisComment_Entry *entry
), i.e.
entry
is now pass-by-value.
libFLAC++:
Changed:
Metadata object interface now maintains a trailing NUL on Vorbis comment values for convenience.
Changed:
Metadata object interface now validates all Vorbis comment entries on input and returns false if an entry does not conform to the Vorbis comment spec.
Changed:
All Metadata objects' operator=() methods now return a reference to themselves.
Added
methods to FLAC::Metadata::VorbisComment::Entry for setting comment values from null-terminated strings:
Entry(const char *field)
Entry(const char *field_name, const char *field_value)
bool set_field(const char *field)
bool set_field_value(const char *field_value)
Changed
the signature of FLAC::Metadata::VorbisComment::get_vendor_string() and FLAC::Metadata::VorbisComment::set_vendor_string() to use a UTF-8, NUL-terminated string
const FLAC__byte *
for the vendor string instead of
FLAC::Metadata::VorbisComment::Entry
.
Added
FLAC::Metadata::*::assign() to all Metadata objects.
Added
bool FLAC::Metadata::get_tags(const char *filename, VorbisComment &tags)
libOggFLAC:
(none)
libOggFLAC++:
(none)
FLAC 1.1.1
General:
Ogg FLAC seeking now works
New optimizations almost double the decoding speed on PowerPC (e.g. Mac G4/G5)
A native OS X release thanks to updated Project Builder and autotools files
FLAC format:
Made invalid the metadata block type 127 so that audio frames can always be distinguished from metadata by seeing 0xff as the first byte.  (This was also required for the Ogg FLAC mapping.)
Ogg FLAC format:
First official FLAC->Ogg bitstream mapping standardized (see new
ogg_mapping.html
FLAC-to-Ogg mapping specification
).  See the documentation for the
documentation.html#flac_options_ogg
--ogg
switch about having to re-encode older Ogg FLAC files.
flac:
Print an error when output file already exists instead of automatically overwriting.
New option
documentation.html#flac_options_force
-f
(
--force
)
to force overwriting if the output file already exists.
New option
documentation.html#flac_options_cue
--cue
to select a specific section to decode using cuesheet track/index points.
New option
documentation.html#flac_options_totally_silent
--totally-silent
to suppress all output.
New (but undocumented) option
--apply-replaygain-which-is-not-lossless
which applies ReplayGain to the decoded output.  See
http://www.hydrogenaudio.org/forums/index.php?showtopic=17293&st=11
this thread
for usage and caveats.
When encoding to Ogg FLAC, use a random serial number (instead of 0 as was done before) when a serial number is not specified.
When encoding multiple Ogg FLAC streams,
--serial-number
or random serial number sets the first number, which is then incremented for subsequent streams (before, the same serial number was used for all streams).
Decoder no longer exits with an error when writing to stdout and the pipe is broken.
Better explanation of common error messages.
Default extension when writing AIFF files is .aif (before, it was .aiff).
Write more common representation of SANE numbers in AIFF files.
Bug fix: calculating ReplayGain on 48kHz streams.
Bug fix: check for supported block alignments in WAVE files.
Bug fix: "offset" field in AIFF SSND chunk properly handled.
Bug fix:
http://sourceforge.net/tracker/index.php?func=detail&aid=679166&group_id=13478&atid=113478
#679166
: flac doesn't respect RIFF subchunk padding byte.
Bug fix:
http://sourceforge.net/tracker/index.php?func=detail&aid=828391&group_id=13478&atid=113478
#828391
: --add-replay-gain segfaults.
Bug fix:
http://sourceforge.net/tracker/index.php?func=detail&aid=851155&group_id=13478&atid=113478
#851155
: Can't seek to position in flac file.
Bug fix:
http://sourceforge.net/tracker/index.php?func=detail&aid=851756&group_id=13478&atid=113478
#851756
: flac --skip --until reads entire file.
Bug fix:
http://sourceforge.net/tracker/index.php?func=detail&aid=877122&group_id=13478&atid=113478
#877122
: problem parsing cuesheet with CATALOG entry.
Bug fix:
http://sourceforge.net/tracker/index.php?func=detail&aid=896057&group_id=13478&atid=113478
#896057
: parsing ISRC number from cuesheet.
metaflac:
Renamed the tag editing options as follows (the
...-vc-...
options still work but are deprecated):
--show-vc-vendor
becomes
--show-vendor-tag
--show-vc-field
becomes
--show-tag
--remove-vc-all
becomes
--remove-all-tags
--remove-vc-field
becomes
--remove-tag
--remove-vc-firstfield
becomes
--remove-first-tag
--set-vc-field
becomes
--set-tag
--import-vc-from
becomes
--import-tags-from
--export-vc-to
becomes
--export-tags-to
Better explanation of common error messages.
Bug fix: calculating ReplayGain on 48kHz streams.
Bug fix: incorrect numbers when printing seek points.
plugins:
Speed optimization in ReplayGain synthesis.
Speed optimization in XMMS playback.
Support for big-endian architectures in XMMS plugin.
Removed support for ID3 tags.
Bug fix: make hard limiter default to off in XMMS plugin.
Bug fix: stream length calculation bug in XMMS plugin, debian bug #200435;
http://sourceforge.net/mailarchive/forum.php?thread_id=2733072&forum_id=6312
see also
.
Bug fix: small memory leak in XMMS plugin.
build system:
ordinals.h
is now static, not a build-generated file anymore.
libraries:
libFLAC: PPC+Altivec optimizations of some decoder routines.
libFLAC: Make stream encoder encode the blocksize and sample rate in the frame header if at all possible (not in STREAMINFO), even if subset encoding was not requested.
libFLAC: Bug fix: fixed seek routine where infinite loop could happen when seeking past end of stream.
libFLAC, libFLAC++: added methods to skip single frames, useful for quickly finding frame boundaries (see interface changes below).
libOggFLAC, libOggFLAC++: New seekable-stream and file encoder and decoder APIs to match native FLAC APIs (see interface changes below).
Interface changes:
libFLAC:
Added
FLAC__metadata_get_tags()
Added
callback-based versions of metadata editing functions:
FLAC__metadata_chain_read_with_callbacks()
FLAC__metadata_chain_write_with_callbacks()
FLAC__metadata_chain_write_with_callbacks_and_tempfile()
FLAC__metadata_chain_check_if_tempfile_needed()
Added
decoder functions for skipping single frames, also useful for quickly finding frame boundaries:
FLAC__stream_decoder_skip_single_frame()
FLAC__seekable_stream_decoder_skip_single_frame()
FLAC__file_decoder_skip_single_frame()
Added
new required tell callback on seekable stream encoder:
FLAC__SeekableStreamEncoderTellStatus and FLAC__SeekableStreamEncoderTellStatusString[]
FLAC__SeekableStreamEncoderTellCallback
FLAC__seekable_stream_encoder_set_tell_callback()
Changed
FLAC__SeekableStreamEncoderState by adding FLAC__SEEKABLE_STREAM_ENCODER_TELL_ERROR
Changed
Tell callback is now required to initialize seekable stream encoder
Deleted
erroneous and unimplemented FLAC__file_decoder_process_remaining_frames()
libFLAC++:
Added
FLAC::Metadata::get_tags()
Added
decoder functions for skipping single frames, also useful for quickly finding frame boundaries:
FLAC::Decoder::Stream::skip_single_frame()
FLAC::Decoder::SeekableStream::skip_single_frame()
FLAC::Decoder::File::skip_single_frame()
Added
encoder functions for setting metadata:
FLAC::Encoder::Stream::set_metadata(FLAC::Metadata::Prototype **metadata, unsigned num_blocks)
FLAC::Encoder::SeekableStream::set_metadata(FLAC::Metadata::Prototype **metadata, unsigned num_blocks)
FLAC::Encoder::File::set_metadata(FLAC::Metadata::Prototype **metadata, unsigned num_blocks)
Added
new required tell callback on seekable stream encoder:
pure virtual FLAC::Encoder::SeekableStream::tell_callback()
Changed
Tell callback is now required to initialize seekable stream encoder
Deleted
the following methods:
FLAC::Decoder::Stream::State::resolved_as_cstring()
FLAC::Encoder::Stream::State::resolved_as_cstring()
libOggFLAC:
Added
OggFLAC__SeekableStreamDecoder interface
Added
OggFLAC__FileDecoder interface
Added
OggFLAC__SeekableStreamEncoder interface
Added
OggFLAC__FileEncoder interface
Added
OggFLAC__stream_decoder_get_resolved_state_string()
Added
OggFLAC__stream_encoder_get_resolved_state_string()
Added
OggFLAC__stream_encoder_set_metadata_callback()
Changed
OggFLAC__StreamDecoderState by adding OggFLAC__STREAM_DECODER_END_OF_STREAM
libOggFLAC++:
Added
OggFLAC::Decoder::SeekableStream interface
Added
OggFLAC::Decoder::File interface
Added
OggFLAC::Encoder::SeekableStream interface
Added
OggFLAC::Encoder::File interface
Added
OggFLAC::Decoder::Stream::get_resolved_state_string()
Added
OggFLAC::Encoder::Stream::get_resolved_state_string()
Added
pure virtual OggFLAC::Encoder::Stream::metadata_callback()
Copyright (c) 2004,2005  Josh Coalson
