Improve handling where FFmpeg may call the provided file reader with
AVSEEK_SIZE repeatedly, when file size is not likely to change between
repeated calls. This prevents repeated seek operations that would
otherwise be required to probe the file size each time.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Buffer up to 5 milliseconds of audio, or at minimum 1024 samples, each
call. Also pre-allocate the buffer, rather than using a stack buffer.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
The Vorbis, Opus, MAD MPEG, and especially the FFmpeg inputs needed to
have their metadata update intervals severely reduced, to reduce CPU
usage, especially on files with lots of tags. Interval reduced to only
once per second.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
readAudio now returns an AudioChunk object directly, and all inputs have
been changed to accomodate this. Also, input and converter processing
have been altered to better work with this.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
This redesign completely changes how tags are stored in memory. Now all
arbitrary tag names are supported, where possible. Some extra work will
be needed to support arbitrary tags with TagLib, such as replacing it
with a different library.
Translation pending for a couple of strings.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Now read all metadata and signal it, and also support pre-buffering
a small block of sample frames if there is embedded artwork, since the
embedded artwork must be handled by the sample decode function.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Where TagLib is not being employed, use FFmpeg to read tags where
possible. This allows reading tags from files like IFF. It reads it
through properties, otherwise allowing tag readers to function like
usual.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
Implement support for DFF, WSD, and IFF formats, and all DSD formats
carried within, using our own DSD decimation method instead of relying
on FFmpeg to do it.
Fixes#165
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
This implements channel masks for inputs where applicable, namely the
CoreAudio decoder, FFmpeg, FLAC, and WavPack. All others will still use
guessing from the channel number.
Signed-off-by: Christopher Snowhill <kode54@gmail.com>
