Uninitialized coefficients were being used to generate exponents, some
of which actually ended up in the final stream. Even though, they were
just extra exponents that are not used by any decoder, it is still
better to have consistent output for testing. This also fixes valgrind
errors.
Since image initialization was moved after tag parsing, the
palette needs to be specified in the context and then copied
to the allocated image in init_image().
Fixes a regression with TIFF images that have palette data,
trac issue #230, file Test_Flate_8bpp.tif.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
On Blu-ray colors are stored in the order YCrCb (and not YCbCr) as mentioned in the specifications:
see System Description Blu-ray Disc Read-Only Format, 9.14.4.2.2.1 Palette Definition Segment
When decoding a Blu-ray subtitle, the colors were incorrectly set.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
On DVD and HD-DVD colors are stored in the order YCrCb (and not YCbCr) as mentioned in the specifications:
see DVD Specifications for Read-Only Disc / Part 3, 4.3 Program Chain Information (7) PGC_SP_PLT
see DVD Specifications for High Definition Disc, 5.2 Navigation for Standard Content (11) PGC_SDSP_PLT
see DVD Specifications for High Definition Disc, 5.2 Navigation for Standard Content (12) PGC_HDSP_PLT
see DVD Specifications for High Definition Disc, 5.5 Presentation Data (4) SET_COLOR2
When decoding a DVD or HD-DVD subtitle, the colors were incorrectly set.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Channel coupling is an optional AC-3 feature that increases quality by
combining high frequency information from multiple channels into a
single channel. The per-channel high frequency information is sent with
less accuracy in both the frequency and time domains. This allows more
bits to be used for lower frequencies while preserving enough
information to reconstruct the high frequencies.
If done before, some parameters aren't known yet.
With svq3/rtp, initializing before some parameters are known
can lead to calling av_malloc(0), which on OS X currently returns
broken pointers.
Fixes memory leaks which are the result of overwriting already-initialized
MDCT contexts during context reinitialization, e.g. in valgrind
fate-aac-latm_000000001180bc60.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
When backing up the top-left border, check that the top-left
(rather than left) MB indeed does belong to our slice. If it
doesn't, backing up has no positive effect but may accidentally
interfere with other threads writing in the same space.
Fixes occasional one-off effects when enabling slice-MT.
The prototype should use the same typedefs as the definition, or it
will fail where int32_t is not int (DOS apparently).
Signed-off-by: Mans Rullgard <mans@mansr.com>
This is consistent with how all other table generation programs are named.
Moreover this ensures that the cos table generation program is correctly
deleted when cleaning the tree.
This collapses the make rules for the trig tables into a pattern
rule. Based on a patch by Diego, modified to avoid using fragile
make constructs and allow future addition of fixed-point sin tables.
Signed-off-by: Mans Rullgard <mans@mansr.com>
These structs are only used in mpegaudiodec.c, so move them there
and remove no longer needed #include lines from mpegaudio.h.
Signed-off-by: Mans Rullgard <mans@mansr.com>
This separation allows these functions to be used in a cleaner
fashion from other codecs (e.g. qdm2) and simplifies creating
optimised versions of them.
Signed-off-by: Mans Rullgard <mans@mansr.com>
This function is not needed since 721d6f2dc5 removed the DCT table
allocations for the configuration used here.
Signed-off-by: Mans Rullgard <mans@mansr.com>
