* commit '096abfa15052977eed93f0b5e01afd2d47c53c1f':
parser: fix large overreads
bitstream: add get_bits64() to support reading more than 32 bits at once
arm: detect cpu features at runtime on Linux
Conflicts:
libavcodec/parser.c
libavformat/mpegts.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '7f2b3dcabd108926bde819ad574017f4161d1546':
configure: arm: check inline and external asm support for extensions
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'c6ebc9faa2210d7f36a3036c357f6f199520f575':
configure: add check_insn function
configure: clean up check_inline_asm and check_as functions
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'f0fe245bc31cf4fa3b3ed0240cd1ab6f0d5043ea':
configure: arm: set fast_clz and fast_unaligned in cpuflags section
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '9ebd45c2d58ad9241ad09718679f0cf7fb57da52':
configure: do not bypass cpuflags section if --cpu not given
dct-test: arm: indicate required cpu features for optimised funcs
snow: fix build after 594d4d5df3
arm: fix use of uninitialised value in ff_fft_fixed_init_arm()
avpicture: Don't assume a valid pix fmt in avpicture_get_size
Conflicts:
libavcodec/avpicture.c
libavcodec/snow.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This prevents undefined behaviour of signed left shift if the coded
value is larger than 2^31. Large values are most likely invalid and
caused errors or by feeding random.
Validate every use of svq3_get_ue_golomb() and changed the place there
the return value was compared with negative numbers. dirac.c was clean,
fixed rv30 and svq3.
Also remove a duplicate function in the MPEG-TS demuxer.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
This is consistent with usual ARM nomenclature as well as with the
VFPV3 and NEON symbols which both lack the ARM prefix.
Signed-off-by: Mans Rullgard <mans@mansr.com>
This allows compiling optimised functions for features not enabled
in the core build and selecting these at runtime if the system has
the necessary support.
Signed-off-by: Mans Rullgard <mans@mansr.com>
This tests instruction set support in both inline and external asm.
If both fail, the base config option is disabled.
Signed-off-by: Mans Rullgard <mans@mansr.com>
The check_insn function tests an instruction in both inline asm and
standalone assembly, and sets _external/_inline config properties
accordingly.
Signed-off-by: Mans Rullgard <mans@mansr.com>
These are properties of the targeted core and do not depend on
specific assembly support in the toolchain which if missing will
render the controlling options here disabled.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Probe for the toolchain default architecture version if no --cpu flag
is present or an unknown cpu is specified. Works with gcc, clang and
armcc.
This allows configuring based on the arch version even if it is not
explicitly specified to configure. It also causes an explicit -march
flag to be added to CFLAGS and ASFLAGS, which in turn lets us do
proper instruction set tests with the assembler.
Signed-off-by: Mans Rullgard <mans@mansr.com>
This will allow arch-specific ways of determining the target
variant when none is specified on the command line.
Signed-off-by: Mans Rullgard <mans@mansr.com>
The check_inline_asm function should check the actual C compiler,
not the one used for assembly files. Usually these are the same,
but they might be different, typically when using a compiler other
than gcc.
The check_as should, as its name suggests, test the type of input
the AS command is used with, i.e. a standalond assembly (.S) file.
Finally, check for gnu assembler using the modified check_as as
this reflects actual usage.
Signed-off-by: Mans Rullgard <mans@mansr.com>
