a7329e5fc2
x86: get_cpu_flags: add necessary ifdefs around function body
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ff_get_cpu_flags_x86() requires cpuid(), which is conditionally defined
elsewhere in the file. Surrounding the function body with ifdefs allows
building even when cpuid is not defined. An empty cpuflags mask is
returned in this case.
2012-10-04 19:29:14 +02:00
f6fbce761e
x86: Drop CPU detection intrinsics
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Now that there is CPU detection in YASM, there will always be one of
inline or external assembly enabled, which obviates the need to fall
back on CPU detection through compiler intrinsics.
2012-10-04 19:29:14 +02:00
1f6d86991f
x86: Add YASM implementations of cpuid and xgetbv from x264
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This allows detecting CPU features with builds that have neither
gcc inline assembly nor the right compiler intrinsics enabled.
2012-10-04 19:29:14 +02:00
54b243141e
x86: cpu: Break out test for cpuid capabilities into separate function
2012-10-04 18:09:21 +02:00
cc5e9e5ff0
x86: ff_get_cpu_flags_x86(): Avoid a pointless variable indirection
2012-10-04 17:58:42 +02:00
cd15b7c03d
samplefmt: make av_samples_alloc() initialize the data to silence.
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Right now the buffer is zeroed, which does not represent silence for U8(P).
2012-10-04 08:05:21 +02:00
f0fce9f33e
xtea: Test inplace decryption
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Based on test code by: Giorgio Vazzana <mywing81@gmail.com>
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-10-03 19:19:53 +03:00
b434500431
xtea: Fix CBC decryption when src==dst
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-10-03 19:19:49 +03:00
ca074cc313
xtea: Factorize testing into a separate function
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Based on a patch by Michael Niedermayer.
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-10-03 19:19:37 +03:00
05e209c04c
Allow use of strncpy()
...
There are cases where strncpy() does exactly what is required.
A blanket ban forces more convoluted solutions to be used in those
cases and has been a cause of bugs.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-10-03 14:36:51 +01:00
75366a504d
blowfish: Add more tests
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Test inplace ECB, normal CBC and inplace CBC encryption/decryption.
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-10-03 16:05:54 +03:00
87f023f2c0
blowfish: Fix CBC decryption with dst==src
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-10-03 16:05:23 +03:00
0cc9a64b92
blowfish: Factorize testing into a separate function
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-10-03 16:05:05 +03:00
51a15ed740
ARM: use numeric ID for Tag_ABI_align_preserved
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Some old assemblers still in use do not support named tags.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-10-03 11:49:55 +01:00
1ca3b62b10
ARM: bswap: drop armcc version of av_bswap16()
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This function causes several versions of armcc to miscompile code,
and the performance impact is small.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-10-02 19:47:56 +01:00
5e826fd65e
ARM: set Tag_ABI_align_preserved in all asm files
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All our ARM asm preserves alignment so setting this attribute
in a common location is simpler. This removes numerous warnings
when linking with armcc.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-10-02 19:47:56 +01:00
7bda4ed780
ARM: fix Thumb PIC on Apple
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LDR with register offset and PC as base register is not available in
the Thumb instruction set so the addition must be done separately.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-10-02 13:12:33 +01:00
11d4e92ed9
avformat: Remove non-compiling and/or silly commented-out printf/av_log statements
2012-10-01 10:24:28 +02:00
8995d34972
ARM: use 2-operand syntax for ADD Rd, PC in Apple PIC code
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The Apple assembler refuses to assemble the 3-operand form
in Thumb2 even though it is valid syntax.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-09-21 07:07:58 +01:00
cdb7db5acd
ARM: align PIC offset pools to 4 bytes
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When building Thumb2 code, the end of a function, where the PIC
offsets are placed, need not be aligned. Although the values
are only accessed with instructions allowing unaligned addresses,
keeping them aligned is preferable.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-09-21 07:07:58 +01:00
a27a690fac
ARM: swap source operands in some add instructions
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This allows using a 16-bit opcode when generating Thumb2 code.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-09-20 17:07:18 +01:00
7689eea49a
flacdsp: arm optimised lpc filter
2012-09-15 23:54:21 +01:00
8919fee7d2
lavu/audioconvert: add a second low frequency channel.
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Can be used by DTS-HD, TrueHD and E-AC-3, among others.
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-09-12 18:26:53 -04:00
8c5ed7a66a
mem: fix typo in check for __ICC
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-09-10 00:07:26 +01:00
e0c6cce447
x86: Replace checks for CPU extensions and flags by convenience macros
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This separates code relying on inline from that relying on external
assembly and fixes instances where the coalesced check was incorrect.
2012-09-08 18:18:34 +02:00
7327525997
x86: float_dsp: fix ff_vector_fmac_scalar_avx() on Win64
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The SWAP macro does not work for explicit xmm/ymm usage, so instead just move
the scalar value from xmm2 to xmm0.
2012-09-07 14:49:10 -04:00
42e63ec8dc
avopt: fix examples to match the same style about default values as the actual code.
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-05 20:09:47 +03:00
4fa661a857
lavu: add snprintf(), vsnprint() and strtod() replacements for MS runtime.
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-05 17:07:30 +03:00
686a329395
avopt: Reorder the default_val struct, making i64 the first field
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Also mention this change in APIchanges.
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-04 23:16:11 +03:00
21bc440384
avopt: Explicitly store rational option defaults in .dbl
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-04 23:13:55 +03:00
e6153f173a
avopt: Store defaults for AV_OPT_TYPE_INT in the i64 union member
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-04 23:13:44 +03:00
d58dd4b5b5
avopt: Store defaults for AV_OPT_TYPE_FLAGS in the i64 union member
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-04 23:13:38 +03:00
124134e424
avopt: Store defaults for AV_OPT_TYPE_CONST in the i64 union member
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-09-04 23:13:32 +03:00
a684267076
pixdesc: cosmetics
2012-09-04 14:55:31 +02:00
f82c4fb27f
x86: Add convenience macros to check for CPU extensions and flags
2012-09-04 01:44:59 +02:00
17337f54c0
x86: Split inline and external assembly #ifdefs
2012-08-31 01:53:25 +02:00
a886b279a0
x86: cosmetics: Comment some #endifs for better readability
2012-08-30 18:50:33 +02:00
7a1944b907
vf_hqdn3d: x86 asm
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13% faster on penryn, 16% on sandybridge, 15% on bulldozer
Not simd; a compiler should have generated this, but gcc didn't.
2012-08-26 10:49:14 +00:00
4d7adec8bd
AVOptions: store defaults for INT64 options in int64 union member.
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Double does not have enough precision to represent all int64 numbers
exactly.
2012-08-24 11:25:06 +02:00
6092dafb5a
lavr: x86: optimized 6-channel s16 to fltp conversion
2012-08-23 20:10:57 -04:00
5b170c0bea
x86: remove FASTDIV inline asm
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GCC 4.3 and later do the right thing with the plain C code. Earlier
versions in 32-bit mode generate one extra instruction, needlessly
zeroing what would be the high half of the shifted value. At least
two gcc configurations miscompile the inline asm in some situations.
In 64-bit mode, all gcc versions generate imul r64, r64 followed by
shr. On Intel i7 and later, this imul is faster 32-bit mul. On
older Intel and all AMD, it is slightly slower. On Atom it is much
slower.
Considering where the FASTDIV macro is used, any overall negative
performance impact of this change should be negligible. If anyone
cares, they should file a bug against gcc and get the instruction
selection fixed.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-08-22 14:29:10 +01:00
66baa45801
configure: Drop fastdiv option
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There is no point in having the user disable any fastdiv macros.
Besides the condition implementation was broken and only disabled
the C implementation, but no platform specific assembly versions.
2012-08-22 01:02:18 +02:00
33e112847d
Add more missing includes after removing the implicit common.h
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-16 10:49:54 +03:00
70766c2182
Add some more missing includes after removing the implicit common.h
...
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-15 23:48:48 +03:00
1d9c2dc89a
Don't include common.h from avutil.h
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Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-15 22:32:06 +03:00
87fa05a0da
ARM: intmath: use native-size return types for clipping functions
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This avoids having the compiler redundantly mask the values to
the smaller size.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-08-13 14:51:52 +01:00
6c4975eaaf
libavutil: add saturating addition functions
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Fixed-point audio codecs often use saturating arithmetic, and
special instructions for these operations are common.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-08-13 01:03:10 +01:00
33de86db2b
dict: move struct AVDictionary definition to dict.c
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This makes struct AVDictionary fully opaque now that nothing
needs to access it directly any more.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-08-10 15:15:00 +01:00
987170cb9d
dict: add av_dict_count()
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This adds a function to retrieve the number of entries in a
dictionary and updates the places directly accessing what should
be an opaque struct to use this new function instead.
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-08-10 15:15:00 +01:00
0d735ca214
ARM: add missing "cc" clobber in av_clipl_int32_arm()
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Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-08-10 10:51:10 +01:00
Diego Biurrun
Anton Khirnov
Michael Niedermayer
Martin Storsjö
Mans Rullgard
Tim Walker
Justin Ruggles
Ronald S. Bultje
Luca Barbato
Loren Merritt