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Janne Grunau [Sun, 25 Nov 2012 21:42:07 +0000 (22:42 +0100)]
mpegvideo: allocate scratch buffers after linesize is known
Since we can't know which stride a custom get_buffer() implementation is
going to use we have to allocate this scratch buffers after the linesize
is known. It was pretty safe for 8 bit per pixel pixel formats since we
always allocated memory for up to 16 bits per pixel. It broke hoever
with cmdutis.c's alloc_buffer() and high pixel bit depth since it
allocated larger edges than mpegvideo expected.
Fixes fuzzed sample nasa-8s2.ts_s244342.
Michael Niedermayer [Sun, 18 Nov 2012 17:46:05 +0000 (18:46 +0100)]
ff_h264_direct_ref_list_init: fix B slice check.
Fixes null pointer dereference.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Janne Grunau [Mon, 17 Dec 2012 20:36:05 +0000 (21:36 +0100)]
h264: increase dist_scale_factor for up to 32 references
Compute dist_scale_factor_field only for MBAFF since that is the only
case in which it is used.
Diego Biurrun [Fri, 7 Dec 2012 15:07:51 +0000 (16:07 +0100)]
misc typo, style and wording fixes
Diego Biurrun [Sun, 2 Dec 2012 22:32:41 +0000 (23:32 +0100)]
configure: formatting cosmetics
Michael Niedermayer [Thu, 6 Oct 2011 20:54:00 +0000 (22:54 +0200)]
h264: use mbaff ref indices in fill_colmap() only for mbaff references
Prevents writing beyond array bounds.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
Janne Grunau [Sat, 15 Dec 2012 21:21:23 +0000 (22:21 +0100)]
h264: prevent decoding of slice NALs in extradata
It is not posible to call get_buffer during frame-mt codec
initialization. Libavformat might pass huge amounts of data as
extradata after parsing broken files. The 'extradata' for the fuzzed
sample sample_varPAR_s5374_r001-02.avi is 2.8M large and contains
multiple slices.
Derek Buitenhuis [Sun, 16 Dec 2012 20:29:12 +0000 (15:29 -0500)]
doxy: Clarify what avpriv_set_pts_info does
The "pts for a given stream" was nonsensical.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Diego Biurrun [Wed, 12 Dec 2012 15:55:35 +0000 (16:55 +0100)]
au: Reorder code so that both muxer and demuxer are under #ifdefs
This reduces code size when either piece has been disabled.
Diego Biurrun [Sun, 16 Dec 2012 22:19:39 +0000 (23:19 +0100)]
fate: Move RALF test into lossless audio group
Diego Biurrun [Sun, 9 Dec 2012 12:35:21 +0000 (13:35 +0100)]
cosmetics: Use consistent names for multiple inclusion guards.
Hendrik Leppkes [Sun, 16 Dec 2012 08:52:35 +0000 (09:52 +0100)]
avresample: use valid log context in mixing functions
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
Justin Ruggles [Fri, 30 Nov 2012 01:58:05 +0000 (20:58 -0500)]
lavr: remove automatic context close/open for resampling compensation
It adds unnecessary complication for insignificant usability improvement.
The user really should know if they'll need resampling compensation before
opening the context.
Note that only the documentation has changed. The current functionality will
still work until the next major bump.
Justin Ruggles [Fri, 30 Nov 2012 01:49:36 +0000 (20:49 -0500)]
lavr: only save/restore the mixing matrix if mixing is being done
Martin Storsjö [Wed, 12 Dec 2012 14:59:45 +0000 (16:59 +0200)]
rtpdec_vp8: Cosmetics: Fix bad alignment/indentation
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Fri, 3 Apr 2009 15:08:07 +0000 (18:08 +0300)]
rtpenc: Allow including a SDES/CNAME block in RTCP SR packets
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Sun, 9 Dec 2012 23:10:42 +0000 (01:10 +0200)]
rtpenc_vp8: Include the picture number in VP8 packets
This makes it easier for receivers to decide what to do if data
is lost.
Refactor calculating the max payload size, to avoid hardcoding the
header size in too many places, reducing the number of lines that
have to be touched if the header is adjusted further.
Signed-off-by: Martin Storsjö <martin@martin.st>
Janne Grunau [Fri, 14 Dec 2012 20:08:24 +0000 (21:08 +0100)]
h264: fix memleak on error during SPS parsing
Introduced in
d7d6efe42b0d.
Janne Grunau [Fri, 14 Dec 2012 22:22:55 +0000 (23:22 +0100)]
h264-mt: handle NAL_DPAs before calling ff_thread_finish_setup
Since a NAL_DPA can start a new frame it has to be handled before
ff_thread_finish_setup is called.
Justin Ruggles [Fri, 14 Dec 2012 02:18:15 +0000 (21:18 -0500)]
lavr: move AudioMix struct definition to audio_mix.c
Luca Barbato [Fri, 14 Dec 2012 08:55:04 +0000 (09:55 +0100)]
vp56: release frames on error
Fixes CVE-2012-2783
CC: libav-stable@libav.org
Luca Barbato [Fri, 14 Dec 2012 07:22:06 +0000 (08:22 +0100)]
vp56: make parse_header return standard error codes
Returning 0 for failure is misleading.
CC: libav-stable@libav.org
Anton Khirnov [Thu, 13 Dec 2012 18:38:20 +0000 (19:38 +0100)]
ivi_common: check that scan pattern is set before using it.
Fixes CVE-2012-2791.
CC: libav-stable@libav.org
Anton Khirnov [Thu, 13 Dec 2012 18:31:42 +0000 (19:31 +0100)]
ivi_common: use proper logging context in ivi_decode_blocks().
Anton Khirnov [Thu, 13 Dec 2012 18:25:52 +0000 (19:25 +0100)]
ivi_common: make some functions and tables static.
Justin Ruggles [Thu, 13 Dec 2012 23:30:20 +0000 (18:30 -0500)]
asyncts: ignore min_delta only if first_pts is set
Justin Ruggles [Thu, 13 Dec 2012 18:20:51 +0000 (13:20 -0500)]
asyncts: merge two conditions
Janne Grunau [Thu, 13 Dec 2012 21:42:11 +0000 (22:42 +0100)]
x86inc: fully concatenate tokens to fix macro expansion for nasm
Fixes build errors with nasm introduced in
6f40e9f070f7 for stack
memory alignment. Noticed by BugMaster.
Janne Grunau [Sun, 9 Dec 2012 18:19:51 +0000 (19:19 +0100)]
h264: initialize frame-mt context copies properly
Janne Grunau [Wed, 12 Dec 2012 15:42:05 +0000 (16:42 +0100)]
mpegvideo: treat delayed pictures as used
This requires to move the avcodec_default_free_buffers() call to
ff_MPV_common_end() since otherwise delayed pictures would get freed
during a size change.
Janne Grunau [Wed, 12 Dec 2012 15:36:20 +0000 (16:36 +0100)]
lavc: set frame parameters after decoding only if necessary
Direct rendering capable decoders call get_buffer() which will set the
frame parameters.
Prevents frames with wrong parameters when a decoder outputs delayed
frames after a resolution or pixel format change.
Janne Grunau [Fri, 16 Nov 2012 00:12:40 +0000 (01:12 +0100)]
h264: set parameters from SPS whenever it changes
Fixes a crash in the fuzzed sample sample_varPAR.avi_s26638 with
alternating bit depths.
Justin Ruggles [Thu, 13 Dec 2012 16:55:40 +0000 (11:55 -0500)]
asyncts: cosmetics: reindent
Justin Ruggles [Wed, 12 Dec 2012 18:19:16 +0000 (13:19 -0500)]
doc: improve documentation for the asyncts filter first_pts option
Note the time base for the option. Add an additional example description.
Justin Ruggles [Tue, 11 Dec 2012 22:36:09 +0000 (17:36 -0500)]
asyncts: fix the asyncts behavior when using the first_pts option
Currently it will do padding, but it does not properly handle
start-of-stream trimming as documented.
Justin Ruggles [Wed, 12 Dec 2012 18:26:57 +0000 (13:26 -0500)]
asyncts: use clipped delta value when setting resample compensation
The max_comp option is supposed to limit maximum compensation, but
currently the clipped value is not actually used.
Justin Ruggles [Wed, 12 Dec 2012 18:10:13 +0000 (13:10 -0500)]
asyncts: fix flushing of final samples at EOF
Luca Barbato [Thu, 13 Dec 2012 15:20:19 +0000 (16:20 +0100)]
vp6: properly fail on unsupported feature
Interlacing is not supported at all and mismanaged down the normal
codepaths causing possible buffer management issues.
CC: libav-stable@libav.org
Alex Converse [Wed, 12 Dec 2012 01:26:10 +0000 (17:26 -0800)]
aacdec: Fix an off-by-one overwrite when switching to LTP profile from MAIN.
Found-by: pawlkt
CC: libav-stable@libav.org
Ronald S. Bultje [Wed, 12 Dec 2012 19:00:22 +0000 (20:00 +0100)]
x86inc: fix stack alignment on win64
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Tue, 11 Dec 2012 22:01:29 +0000 (00:01 +0200)]
rtpproto: Remove unused defines
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Tue, 11 Dec 2012 19:42:32 +0000 (21:42 +0200)]
rtpdec_mpeg4: Cosmetic cleanup
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Tue, 11 Dec 2012 18:23:50 +0000 (20:23 +0200)]
rtpdec: Cosmetic cleanup of the header
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Tue, 11 Dec 2012 16:24:46 +0000 (18:24 +0200)]
rtpdec: Get rid of a useless _s suffix on a struct name
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Tue, 11 Dec 2012 16:50:10 +0000 (18:50 +0200)]
rtpdec/enc: Remove outdated/useless/misleading comments
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Tue, 11 Dec 2012 17:57:18 +0000 (19:57 +0200)]
rtpdec: Improve some comments
The previous comment about the buffer was wildly inaccurate and
misleading.
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Tue, 11 Dec 2012 17:35:03 +0000 (19:35 +0200)]
rtpdec: Remove unused context variables
These stem from back when both the rtp muxer and rtp depacketizing
shared the same struct.
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Tue, 11 Dec 2012 16:58:59 +0000 (18:58 +0200)]
rtpdec: Limit writing to the buffer size
This fixes potential buffer overwrites.
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Wed, 12 Dec 2012 09:27:03 +0000 (11:27 +0200)]
svq1: Fix building with -DDEBUG
Signed-off-by: Martin Storsjö <martin@martin.st>
Anton Khirnov [Sat, 8 Dec 2012 09:11:13 +0000 (10:11 +0100)]
svq1: return meaningful error codes.
Anton Khirnov [Sat, 8 Dec 2012 09:04:56 +0000 (10:04 +0100)]
lavc: replace some forgotten instances of PixelFormat with AVPixelFormat
Anton Khirnov [Fri, 7 Dec 2012 18:58:20 +0000 (19:58 +0100)]
svq1: unmacroify macros used only once.
Anton Khirnov [Fri, 7 Dec 2012 16:10:01 +0000 (17:10 +0100)]
svq1: deMpegEncContextize
This decoder is quite simple and none of the MpegEncContext complexity
is actually needed.
Justin Ruggles [Tue, 11 Dec 2012 20:56:17 +0000 (15:56 -0500)]
lavr: fix segfault due to overlooked change needed in
14758e3
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Ronald S. Bultje [Sun, 9 Dec 2012 00:12:38 +0000 (16:12 -0800)]
x86inc: support stack mem allocation and re-alignment in PROLOGUE
Use this in VP8/H264-8bit loopfilter functions so they can be used if
there is no aligned stack (e.g. MSVC 32bit or ICC 10.x).
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Justin Ruggles [Thu, 29 Nov 2012 19:53:04 +0000 (14:53 -0500)]
lavr: temporarily store custom matrix in AVAudioResampleContext
This allows AudioMix to be treated the same way as other conversion contexts
and removes the requirement to allocate it at the same time as the
AVAudioResampleContext.
The current matrix get/set functions are split between the public interface
and AudioMix private functions.
Justin Ruggles [Thu, 29 Nov 2012 19:59:19 +0000 (14:59 -0500)]
lavr: clarify documentation for avresample_get/set_matrix()
Justin Ruggles [Mon, 10 Dec 2012 17:48:18 +0000 (12:48 -0500)]
swfdec: cosmetics: fix indentation
Justin Ruggles [Mon, 10 Dec 2012 17:44:09 +0000 (12:44 -0500)]
swfdec: do better validation of tag length
Avoids trying to read a packet with 0 or negative size.
Avoids a potential infinite loop due to seeking backwards.
Partially based on a patch by Michael Niedermayer.
Mans Rullgard [Fri, 7 Dec 2012 23:03:01 +0000 (23:03 +0000)]
Make LOCAL_ALIGNED syntactically similar on all systems
This changes the LOCAL_ALIGNED definition on systems where
DECLARE_ALIGNED is used so it matches the manual alignment
case, ensuring invalid use will not compile on x86 only to
fail on everything else.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Mans Rullgard [Mon, 10 Dec 2012 14:55:28 +0000 (14:55 +0000)]
build: fix 'clean' target
This fixes removal of TOOLS as well as HOSTPROGS declared in the
top-level Makefile. The clean target in common.mak needs to be
eval'd since the variables used within are reset for each library.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Carl Eugen Hoyos [Sun, 9 Dec 2012 09:24:16 +0000 (10:24 +0100)]
ZeroCodec: Flip output
The initial testing of the VFW binary codec was flawed,
likely due to an AviSynth bug.
Re-testing using VirtualDub and various professional editing
applications has revealed it should have been flipped.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Martin Storsjö [Sun, 9 Dec 2012 19:00:12 +0000 (21:00 +0200)]
rtpdec: Remove an outdated todo comment
This comment was added in
e309128f, in 2002, and has been brought
along since then more or less unmodified.
The first point of the todo was implemented in
dbf30963 in 2006,
the second one is not relevant to rtpdec.c (brought along from
rtp.c in
8eb793c4 in 2008) but would be more relevant to the
rtp muxer, although it isn't a good idea anyway.
Signed-off-by: Martin Storsjö <martin@martin.st>
Martin Storsjö [Sun, 9 Dec 2012 18:45:27 +0000 (20:45 +0200)]
rtpdec: Rename a static variable to normal naming conventions
Signed-off-by: Martin Storsjö <martin@martin.st>
Mans Rullgard [Sun, 9 Dec 2012 20:39:42 +0000 (20:39 +0000)]
sh4: dsputil: remove duplicate of ff_gmc_c()
This function is an exact duplicate of the generic one.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Mans Rullgard [Sun, 9 Dec 2012 13:28:44 +0000 (13:28 +0000)]
dsputil: remove unused macro WRAPPER8_16
This macro has never been used.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Mans Rullgard [Sun, 9 Dec 2012 17:34:14 +0000 (17:34 +0000)]
configure: fix automatic processing of _extralibs in check_deps
This fixes the automatic use of $foo_extralibs when feature foo
is enabled indirectly through a _select or _suggest.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Martin Storsjö [Wed, 5 Dec 2012 15:17:20 +0000 (17:17 +0200)]
libvpxenc: Support forcing keyframes
Signed-off-by: Martin Storsjö <martin@martin.st>
Mans Rullgard [Thu, 13 Sep 2012 18:40:03 +0000 (19:40 +0100)]
ac3dec: decode directly into output buffers
Signed-off-by: Mans Rullgard <mans@mansr.com>
Mans Rullgard [Thu, 13 Sep 2012 18:35:18 +0000 (19:35 +0100)]
ac3dec: make downmix() take array of pointers to channel data
Mans Rullgard [Tue, 11 Sep 2012 16:25:05 +0000 (17:25 +0100)]
ac3dec: output planar float only
Signed-off-by: Mans Rullgard <mans@mansr.com>
Janne Grunau [Sat, 8 Dec 2012 12:36:28 +0000 (13:36 +0100)]
svq3: make slice type value unsigned to match svq3_get_ue_golomb return type
Diego Biurrun [Fri, 7 Dec 2012 14:03:40 +0000 (15:03 +0100)]
configure: Have protocols select network code instead of depending on it
Martin Storsjö [Fri, 7 Dec 2012 13:50:17 +0000 (15:50 +0200)]
rtpdec: K&R formatting and spelling cosmetics
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Diego Biurrun [Fri, 7 Dec 2012 09:25:27 +0000 (10:25 +0100)]
cosmetics: Fix dropable --> droppable typo
Luca Barbato [Sun, 9 Dec 2012 03:15:45 +0000 (04:15 +0100)]
avio: K&R cosmetic formatting
Mans Rullgard [Fri, 7 Dec 2012 13:53:56 +0000 (13:53 +0000)]
lavf: fix arithmetic overflows in avformat_seek_file()
The values compared here can be more than INT64_MAX apart. Since the
difference is always positive, converting to uint64_t before subtracting
gives the correct result without overflows.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Janne Grunau [Sat, 8 Dec 2012 15:20:18 +0000 (16:20 +0100)]
mjpeg: initialize input padding after unescaped buffer to zero
Fixes valgrind --undef-value-errors=yes warnings caused by valid
overreads in the fate vsynth jpegls, cover-art-ape and cover-art-wv
tests.
Luca Barbato [Sat, 8 Dec 2012 04:49:37 +0000 (05:49 +0100)]
img2: document the options available
Luca Barbato [Sat, 8 Dec 2012 05:14:41 +0000 (06:14 +0100)]
hls: improve options description
Luca Barbato [Sat, 8 Dec 2012 05:00:46 +0000 (06:00 +0100)]
hls: use a meaningful long name
Luca Barbato [Sat, 8 Dec 2012 04:32:00 +0000 (05:32 +0100)]
hls: add start_number option
Ronald S. Bultje [Fri, 7 Dec 2012 21:09:20 +0000 (13:09 -0800)]
h264: check for invalid zeros_left before writing
Prevent an invalid write into coeffs[scantable[-1]] if zeros_left
itself was an invalid VLC code (and thus -1).
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Janne Grunau [Fri, 30 Nov 2012 14:00:47 +0000 (15:00 +0100)]
golomb: use unsigned arithmetics in svq3_get_ue_golomb()
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.
Justin Ruggles [Wed, 5 Dec 2012 17:51:34 +0000 (12:51 -0500)]
x86: float_dsp: fix loading of the len parameter on x86-32
Josh Allmann [Fri, 7 Dec 2012 23:00:30 +0000 (00:00 +0100)]
takdec: fix initialisation of LOCAL_ALIGNED array
When LOCAL_ALIGNED uses manual alignment initialisation is not
possible.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
Mans Rullgard [Fri, 7 Dec 2012 22:13:57 +0000 (22:13 +0000)]
takdec: fix initialisation of LOCAL_ALIGNED array
When LOCAL_ALIGNED uses manual alignment initialisation is not
possible.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Paul B Mahol [Tue, 2 Oct 2012 13:43:19 +0000 (13:43 +0000)]
tak: demuxer, parser, and decoder
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
Michael Niedermayer [Wed, 3 Oct 2012 14:06:23 +0000 (16:06 +0200)]
parser: fix large overreads
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
Michael Niedermayer [Sun, 30 Sep 2012 00:39:55 +0000 (02:39 +0200)]
bitstream: add get_bits64() to support reading more than 32 bits at once
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>
Mans Rullgard [Wed, 5 Dec 2012 02:11:22 +0000 (02:11 +0000)]
arm: detect cpu features at runtime on Linux
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>
Mans Rullgard [Tue, 4 Dec 2012 23:29:34 +0000 (23:29 +0000)]
arm: rename ARMVFP config symbol to VFP
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>
Mans Rullgard [Mon, 3 Dec 2012 01:36:49 +0000 (01:36 +0000)]
configure: arm: make _inline arch ext symbols depend on inline_asm
This makes --disable-inline-asm work as expected.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Mans Rullgard [Sat, 1 Dec 2012 16:41:39 +0000 (16:41 +0000)]
arm: use HAVE*_INLINE/EXTERNAL macros for conditional compilation
These macros reflect the actual capabilities required here.
Signed-off-by: Mans Rullgard <mans@mansr.com>
Mans Rullgard [Sat, 1 Dec 2012 15:19:10 +0000 (15:19 +0000)]
configure: arm: check inline and external asm support for extensions
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>
Mans Rullgard [Sat, 1 Dec 2012 15:06:56 +0000 (15:06 +0000)]
configure: add check_insn function
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>
Mans Rullgard [Sat, 1 Dec 2012 13:19:05 +0000 (13:19 +0000)]
configure: clean up check_inline_asm and check_as functions
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>
Mans Rullgard [Mon, 3 Dec 2012 21:47:17 +0000 (21:47 +0000)]
configure: arm: set fast_clz and fast_unaligned in cpuflags section
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>
Mans Rullgard [Fri, 30 Nov 2012 21:14:25 +0000 (21:14 +0000)]
configure: arm: detect toolchain default arch version
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>
Mans Rullgard [Mon, 3 Dec 2012 19:21:42 +0000 (19:21 +0000)]
configure: do not bypass cpuflags section if --cpu not given
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>