Many compilers need special flags to compile *.h files as regular
source code, if they will do so at all. Rather than hoping all
compilers will have such a flag and adding mappings for it, create
wrapper .c files for test building single headers.
This allows using the regular rule for compiling C files without the
need for special flags, and it also provides proper dependency tracking
for these objects.
Signed-off-by: Mans Rullgard <mans@mansr.com>
When streaming live streams using the Akamai, Edgecast or Limelight CDN,
players cannot simply connect to the live stream. Instead, they have to
subscribe to it, by sending an FC Subscribe call to the server.
Signed-off-by: Martin Storsjö <martin@martin.st>
Some compilers do not support the Q/R modifiers used to access
the low/high parts of a 64-bit register pair. Check for this
and disable all uses of it when not supported.
Fixes bug #337.
Signed-off-by: Mans Rullgard <mans@mansr.com>
It appears that something goes wrong in old nasm versions when the
%+ operator is used in the last argument of a macro invocation and
this argument is tested with %ifdef within the macro. This patch
rearranges the macro arguments such that the %+ operator is never
used in the last argument.
nasm does not support 'CPU foonop' directives. This adds a configure
test for the directive and uses it only if supported.
Signed-off-by: Mans Rullgard <mans@mansr.com>
yasm tolerates mismatch between movd/movq and source register size,
adjusting the instruction according to the register. nasm is more
strict.
Signed-off-by: Mans Rullgard <mans@mansr.com>
This installs libraries using the proper names and locations,
generates an import lib for the DLL, and drops no longer needed
linker flags.
Signed-off-by: Mans Rullgard <mans@mansr.com>
This simplifies adding extra flags for individual programs
and also allows more than one object file per program.
Signed-off-by: Mans Rullgard <mans@mansr.com>
The check is bogus since the nuv frameheader is already skipped
and the (decompressed) RTjpeg header is checked.
This reverts commit f6afacdb3b.
CC: libav-stable@libav.org
At this place, the normal way of initializing a struct works
fine, there's no need for a struct literal.
Signed-off-by: Martin Storsjö <martin@martin.st>
If there was a failure inflating, or reinitializing
the zstream, the current frame's buffer would be lost.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
In the GNU assembler, a relational expression, bizarrely, has the
value -1 if true, whereas in Apple's it is +1. This patch makes
sure the correct expression is used in both cases.
Signed-off-by: Mans Rullgard <mans@mansr.com>
The clang integrated assembler does not support pre-UAL syntax,
while gcc requires pre-UAL syntax for ARM code. A patch[1] for
clang to support the old syntax as well has been ignored since
January.
This patch chooses the syntax appropriate for each compiler,
allowing both to build the code. Notably, this change allows
building for iphone with the latest Apple Xcode update.
[1] http://llvm.org/bugs/show_bug.cgi?id=11855
Signed-off-by: Mans Rullgard <mans@mansr.com>
Refactoring mmx2/mmxext YASM code with cpuflags will force renames.
So switching to a consistent naming scheme beforehand is sensible.
The name "mmxext" is more official and widespread and also the name
of the CPU flag, as reported e.g. by the Linux kernel.
For left HFYU prediction, we predict from the buffer buf+1 using 8- or
16-byte reads. This means that aligning the buffer by 16 bytes is in
itself not sufficient, because if the width itself is 16- or 8-byte
aligned, the buffer will not be padded, and thus a read of size 16 at
buf+1 will overflow boundaries at the right edge. Padding the buffer by
1 byte is sufficient to not overflow its boundaries.
Fixes bug 342.
This makes add_hfyu_left_prediction_sse4() handle sources that are not
16-byte aligned in its own function rather than by proxying the call to
add_hfyu_left_prediction_ssse3(). This fixes a crash on Win64, since the
sse4 version clobberes xmm6, but the ssse3 version (which uses MMX regs)
does not restore it, thus leading to XMM clobbering and RSP being off.
Fixes bug 342.
The scaling process for obtaining direct MVs from co-located field MVs
is the same for interlaced field and progressive pictures.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
In VC-1 interlaced field pictures, chroma motion vectors can extend beyond
picture boundary even if luma vectors are bounded. The problem shows up
only for hpel interpolated MVs, and may be due to the way motion vectors
are scaled / cropped.
Thanks to Konstantin Shishkov for suggesting the fix. This fixes
long-known segfaults in MC-VC1.ts from videolan streams archive.
Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>
Diego Biurrun
Mans Rullgard
Samuel Pitoiset
Derek Buitenhuis
Anton Khirnov
Yaakov Selkowitz
Justin Ruggles
Janne Grunau
Martin Storsjö
Reinhard Tartler
Ronald S. Bultje
Sean McGovern
Mashiat Sarker Shakkhar