* commit 'c0a49077ea4ff3a0ad30b9e33f1bb06ba9112aaa':
asfdec: add more checks for size left in asf packet buffer
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
Allow writing an empty channel mask into the wave format header. Useful
if the input file contains an unknown channel layout.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
The recent commits change the value slightly. Even though it's
within the threshold it's better to risk as little as possible
especially when different systems, processors, FPUs and compilers
are involved.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Since TNS was fixed with the recent commits retweak the values
so it's more frequently used.
Still not enabled by default yet, though it's possible that it
will be made enabled by default in the near future.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
This commit was made possible with the earlier commits since the
new quantization method basically means we're working always with
unsigned values. The specifications mention to use compression when
the first 2 bits are identical but they didn't mention if this should
happen before or after the conversion to signed values. Actually
they said nothing about conversion to signed values.
With this commit, coefficient compression usually always happens
which saves a lot of space, especially at extremely low bitrates
and doesn't change the quality at all.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
This finally (and again) gets rid of basically everything the
specifications say about how TNS should be done. The main
problem used to be that a single filter was used for all
coefficients which despite being explicitly recommended by
the specifications usually sounds wrong, therefore it's
a corner case in the current TNS implementation.
This commit also changes the coefficient bit size, as apparently
it's better to use lower precision in case the windows are eight
short. This is apparently what fdk_aac uses, looking at the bit
stream and makes sense. Also the order when 8 SHORT windows happen
is important as 7 was too much and according to PSNR was worse
while 5 is just about correct.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Deprecate the now unused option, but temporarily retain the capability
to disable the now default behaviour.
Mention this change in the AVPacket documentation.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* commit 'b84675d63aaede8f6944b901250a10456c5477e6':
mmaldec: hack against buffering problems on broken input
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
Agatha Hu
Muhammad Faiz
Ganesh Ajjanagadde
Paul B Mahol
Michael Niedermayer
Alex Agranovsky
Rodger Combs
Carl Eugen Hoyos
Clément Bœsch
Peter Belkner
Hendrik Leppkes
Tobias Rapp
Alexandra Hájková
Rostislav Pehlivanov
Hendrik Schreiber
Vittorio Giovara