This adds a _fixed suffix to the fixed-point versions of things
with both float and fixed-point variants. This makes it more
consistent with other dual-implementation things, e.g. fft.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Arguments for variable size instructions are added to many macros, along
with other various changes. The x86util.asm code was ported from x264.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
This builds the float and fixed-point versions of dct32 separately
instead of #including the file in dct.c and mpegaudiodec.c.
Signed-off-by: Mans Rullgard <mans@mansr.com>
These macros are no longer needed after the s32 output was removed.
Change the relevant code to use av_clip_int16() instead of using
explicit limits.
Signed-off-by: Mans Rullgard <mans@mansr.com>
The size-32 DCT_II has a special implementation which doesn't use
the normal tables. Skipping allocation of these in this case saves
some memory.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Surround memset and ff_vp8_dct_cat_prob by X() in order to fix iOS build
Includes patch by Luca Barbato <lu_zero@gentoo.org>.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This allows the values to be used without changing C code and is closer to how
the other DEBUG flags work.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Format detection and internal frame initialization is moved to a
separate init_image() function, which is called when all the tags have
been read, and so both BitsPerSample and SamplesPerPixel information
has been collected.
This fixes decoding of the file 11.tiff from roundup issue #1925.
Based on a patch by Kostya Shishkov <kostya.shishkov@gmail.com>.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
int/unsigned is the natural memory access type for CPUs, using sized types
for temporary variables, counters and similar just increases code size and
can possibly cause a slowdown.
Adding _POSIX_C_SOURCE to CPPFLAGS globally produces all sorts of problems
since it causes certain system functions to be hidden on some (BSD) systems.
The solution is to only add the flag on systems that really require it, i.e.
glibc-based ones.
This change makes BSD systems compile out-of-the-box without the need for
adding specific flags manually. It also allows dropping a number of flags
set manually on a file-per-file basis, but were only present to work around
breakage introduced by the presence of _POSIX_C_SOURCE.
Also add _XOPEN_SOURCE to CPPFLAGS for glibc systems. We use XSI extensions
in several places already, so it is preferable to define it globally instead
of littering source files with individual #defines only needed for glibc.
On cygwin, math.h needs to be included before float.h because of a bug
in the system headers. Including libavutil/libm.h first works around
this issue.
Longer discussion of the topic:
http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/128582
Mans Rullgard
Daniel Kang
Gil Pedersen
Diego Biurrun
Justin Ruggles
Martin Aumüller
Reimar Döffinger
Michael Niedermayer
Aurelien Jacobs
Tomas Härdin
Stefano Sabatini
Baptiste Coudurier
Jason Garrett-Glaser
Anatoly Nenashev
Ronald S. Bultje
Anton Khirnov
Reinhard Tartler
Alex Converse
Oskar Arvidsson