* Change replaygain analysis so it is able to handle 32-bit PCM
* Increase FLAC__REFERENCE_CODEC_MAX_BITS_PER_SAMPLE to 32
* Fix switch-case fallthrough
Decoding for 32-bit files is added, including the ability to decode
a 33-bit side subframe. However, residuals are assumed to be limited
to a 32-bit signed int, the encoder must make sure of this
libFLAC DLLs were exposing windows_unicode_filename.h functions
because flac and metaflac needed to set flac_internal_set_utf8_
filenames. Files windows_unicode_filename.{c/h} and
win_utf8_io.[c/h] are merged, and all non-utf8 parts are removed.
With this commit, the libFLAC DLL interface is the same as the
libFLAC interface of shared libraries on other platforms
... FLAC__stream_decoder_get_client_data. Also the function
definition was moved to its 'siblings'. This way, the function
fits better in the API with respect to naming.
Quite a lot of decoders have trouble streaming or seeking in a
file with frames that only consist of constant subframes because
of the large difference between the largest and smallest subframe.
To remedy this, this commit makes it possible to disable the use
of constant subframes for the last subframe in case all others are
constant with a new API function. This means the minimum bitrate
for a FLAC file encoded with this function used is raised to
1bit/sample (i.e. 48kbit/s for 48kHz material). This commit also
adds tests to the test suite
Now that many DACs support up to 768kHz, add support for these
sample rates to the encoder. Files produced with these sample rates
are already decodable by the reference decoder. Update documentation
and tests accordingly.
Doxygen sees '#' as a cross-reference, which this is not in this case. This will silence the following warning that pops up frequently when building with docs:
warning: explicit link request to 'defines' could not be resolved
The code shorthand tag was removed in include\FLAC\all.h to remain synonymous with other mentions of #define.
the issue is, flac and metaflac exes rely on flac_internal_???_utf8()
procedures from windows_unicode_filenames.c and there is no easy way
to exclude them from exports without breaking things. So export them
explicitly (they are exported anyway w/o this patch), but add a FIXME
note about the kludge in windows_unicode_filenames.c.
* Furthermore, use NDEBUG globally to detect the presence
of building with more debug output information.
AX_CHECK_ENABLE_DEBUG is easier to use, and nowadays
Gnome has also switched to it from its own custom solution.
Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
These fixes are in the public API, but FLAC would have been extremely
unlikely to work in any system where `unsigned` was not 32 bits.
Therefore we do not treat this as an API change.
Previously, it the write callback failed the error status
would be set to `FLAC__STREAM_DECODER_READ_FRAME`. Now it
gets set to `FLAC__STREAM_DECODER_WRITE_STATUS_ABORT`.
Patch-from: lvqcl <lvqcl.mail@gmail.com>
Adds two new apodization functions that seem to perform better than
the apodization functions currently in the codebase and fixes three
existing windows as well.
Its important to note that this patch only affects the encoder stage
that evaluates various possible predictors. Audio encoded with these
new windows will still decode with existing legacy decoders.
= Theory =
These functions are used to window the audio data at the predictor
stage. These news functions enable the use of only part of the signal
to generate a predictor. This helps because short transients can
introduce noise into the predictor. The predictor becomes very good
at prediciting one part of the signal, instead of mediocre for the
whole block.
Signed-off-by: Erik de Castro Lopo <erikd@mega-nerd.com>
* Replace _declspec with __declspec.
* Replace __wgetmainargs_ with __wgetmainargs_t and __wgetmainargs
with wgetmainargs because identifiers with leading underscores are
reserved for the compiler.
Patch-from: lvqcl <lvqcl.mail@gmail.com>
These were most arising from -Wenum-conversion where an enum of
one type was being assigned to a variable on another.
Originally reported by Lenny Maiorani <lenny@colorado.edu> on the
flac-dev mailing list.
