These could be used for reference counting, or for keeping track of
decoding progress in references in multithreaded decoders.
Support is provided by gcc/msvc/suncc intrinsics, with a fallback using
pthread mutexes.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
The escape API will be useful to perform escaping programmatically, which
is required when crafting argument strings, and will be used for context
printing as well.
This is based on the ffescape tool code, with a few extensions and fixes.
As far as I can tell the code should not change behaviour
depending on locale in any of these places.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
* commit '9d4da474f5f40b019cb4cb931c8499deee586174':
lls: move to the private namespace
Conflicts:
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'f935aca44c674d30e3ed940ef73bbad1228a5855':
av_memcpy_backptr: avoid an infinite loop for back = 0
4xm: check the return value of read_huffman_tables().
Conflicts:
libavcodec/4xm.c
libavutil/mem.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The "CentaurHauls family 6 model 9 stepping 8" family of CPUs
(flags: fpu vme de pse tsc msr cx8 sep mtrr pge mov pat mmx fxsr sse
up rng rng_en ace ace_en) SIGILLs on long nop codes.
Signed-off-by: Martin Storsjö <martin@martin.st>
internal.h doesn't need to include cpu.h anymore since
the relevant code was moved to x86/emms.h
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '4db96649ca700db563d9da4ebe70bf9fc4c7a6ba':
avutil: Ensure that emms_c is always defined, even on non-x86
configure: Move MinGW CPPFLAGS setting to libc section, where it belongs
avutil: Move emms code to x86-specific header
Conflicts:
configure
libavutil/internal.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
lavu: avoid clashing definition of E
doc: developer: Add a note about reserved system name space
Conflicts:
libavutil/internal.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '62a43d30cc3b9b2460f2c926beb522df32493625':
crc: Move static data table from header to .c file
avcodec/rectangle: Remove nonsense assert
Conflicts:
libavcodec/rectangle.h
libavutil/crc_data.h
The assert is not removed as the assert ensures clear and easy
to debug failures instead of undefined behavior in case of
misalignment.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '375ef6528c9dd2db7f9881e232cb0ec3aa16970d':
libfdk-aacenc: Actually check for upper bounds of cutoff
arm: Fall back to runtime cpu feature detection via /proc/cpuinfo
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The "CPU: CentaurHauls family 6 model 9 stepping 8" family of CPUs
(flags: fpu vme de pse tsc msr cx8 sep mtrr pge mov pat mmx fxsr sse
up rng rng_en ace ace_en) SIGILLs on long nop codes.
Change-Id: I7e7c52a2191006df30a9aadbc40d481a1db89106
On recent android versions, /proc/self/auxw is unreadable
(unless the process is running running under the shell uid or
in debuggable mode, which makes it hard to notice). See
http://b.android.com/43055 and
https://android-review.googlesource.com/51271 for more information
about the issue.
This makes sure e.g. neon optimizations are enabled at runtime in
android apps even when built in release mode, if configured to
use the runtime detection.
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
Memory passed to av_realloc must come from malloc,
calloc or realloc, and not e.g. memalign. realloc(3):
The realloc() function changes the size of the memory block pointed to
by ptr to size bytes. (...) Unless ptr is NULL, it must have been
returned by an earlier call to malloc(), calloc() or realloc().
The issue has been found by debugallocation, a part of google-perftools:
http://code.google.com/p/gperftools/ .
This makes fate pass when using LD_PRELOAD-ed debugallocation.
See also earlier discussion
http://ffmpeg.org/pipermail/ffmpeg-devel/2013-January/137234.html
Signed-off-by: Paweł Hajdan, Jr <phajdan@google.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This makes sure that the restrict keyword is mapped to whatever
keyword the compiler prefers/supports. This fixes building on MSVC
(and possibly on GCC 2.x as well).
Signed-off-by: Martin Storsjö <martin@martin.st>
Now, nellymoserenc and aacenc no longer depends on dsputil. Independent
of this patch, wmaprodec also does not depend on dsputil, so I removed
it from there also.
The function is known to be missing in at least one target (MSVC).
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
x86: dsputil: Drop some unused macro definitions
x86: Add a Yasm-based emms() replacement
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'd633d12b2cc999cee3ac25bf9a810fe7ff03726d':
x86inc: Add cvisible macro for C functions with public prefix
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ef5d41a5534b65f03d02f2e11a503ab8416bfc3b':
x86inc: Rename "program_name" to "private_prefix"
configure: Run SHFLAGS through ldflags_filter()
Conflicts:
configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This provides a fallback when building with Yasm enabled, but neither
inline assembly, nor the _mm_empty intrinsic are available or enabled.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
The new name is more descriptive and will allow defining a separate
public prefix for externally visible library symbols.
Signed-off-by: Diego Biurrun <diego@biurrun.de>
* qatar/master:
lavc: Move vector_fmul_window to AVFloatDSPContext
rtpdec_mpeg4: Check the remaining amount of data before reading
Conflicts:
libavcodec/dsputil.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '0eecafc948b74c247ebbc59f18f508db5d590d0b':
configure: Make the new srtp protocol depend on the rtp protocol
lavf: Add a fate test for the SRTP functions
lavu: Add a fate test for the HMAC API
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'dae1d507af94261bafd3b11549884e5d1eca590e':
x86: Add PAVGB macro to abstract pavgb/pavgusb instruction via cpuflags
vf_fps: add final flushed frames to the dropped frame count
rv34_parser: Adjust #if for disabling individual parsers
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '094a7405e5d8463d7d167d893e04934ec1a84ecd':
x86: ABSB: port to cpuflags
sdp: Include SRTP crypto params if using the srtp protocol
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'ab2ad8bd56882c0ea160b154e8b836eb71abc49d':
lavf: Add functions for SRTP decryption/encryption
lavu: Add an API for calculating HMAC (RFC 2104)
Conflicts:
doc/APIchanges
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'd8c772de53d29afb1bada88afa859fce8489c668':
nutdec: Always return a value from nut_read_timestamp()
configure: Make warnings from -Wreturn-type fatal errors
x86: ABS2: port to cpuflags
vdpau: Remove av_unused attribute from function declaration
h264: fix ff_generate_sliding_window_mmcos() prototype.
Conflicts:
configure
libavformat/nutdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* qatar/master:
Add version bump and APIchanges entry for Add AV_PIX_FMT_VDPAU.
pixfmt: add picture format for VDPAU
Conflicts:
doc/APIchanges
libavutil/pixfmt.h
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '5b4dfbffc258f90a7d2540d21209ac23afcf7cd0':
x86: ABS1: port to cpuflags
v210x: cosmetics, reformat
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Some old gnu assemblers fail to assemble qdadd correctly
Ideally we should check this at build time, but better to
check at run time than mysteriously failing.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '6dd93ee6f1b050ad7c4b247899e83efa293ee405':
hlsenc: check append_entry return value
hlsenc: use the basename to generate the list entries
avstring: add av_basename and av_dirname
Conflicts:
Changelog
doc/APIchanges
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '418693bdc5edad72b0d055f741931612d797eb05':
lavc: rewrite and extend AVFrame doxy
opt: avoid segfault in av_opt_next() if the class does not have an option list
ttadec: fix last frame handling when seeking
alacdec: do not be too strict about the extradata size
Conflicts:
libavcodec/alac.c
libavcodec/avcodec.h
libavcodec/tta.c
libavutil/opt.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This is required because there are some "holes" in the list for
compatibility with the fork.
The commit also removes the now unecessary check from cmdutils.
Found-by: wm4
* qatar/master:
aacdec: Fix an off-by-one overwrite when switching to LTP profile from MAIN.
x86inc: fix stack alignment on win64
rtpproto: Remove unused defines
Conflicts:
libavcodec/aacdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
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: Michael Niedermayer <michaelni@gmx.at>
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>
* qatar/master:
golomb: use unsigned arithmetics in svq3_get_ue_golomb()
x86: float_dsp: fix loading of the len parameter on x86-32
takdec: fix initialisation of LOCAL_ALIGNED array
takdec: fix initialisation of LOCAL_ALIGNED array
Conflicts:
libavcodec/rv30.c
libavcodec/svq3.c
libavcodec/takdec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* 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>
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>
* commit '9d5c62ba5b586c80af508b5914934b1c439f6652':
lavu/opt: do not filter out the initial sign character except for flags
eval: treat dB as decibels instead of decibytes
float_dsp: add vector_dmul_scalar() to multiply a vector of doubles
Conflicts:
libavutil/eval.c
tests/ref/fate/eval
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The description of AV_LOG_PANIC 100% matches what av_assert
does, while AV_LOG_FATAL does not really.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
This change requires the user to specify min and max value, and makes
possible to prevent the user to set AV_{SAMPLE,PIX}_FMT_NONE if
forbidden.
Add required ifdeffery in case of mixed libraries, when libavutil is
updated but not the other libraries.
This is a followup of 08d0969c14.
* qatar/master:
configure: Use headers in the check for _beginthreadex for w32threads
avutil: Use a configure check to enable windows console functions
avutil: Include io.h with a separate condition from windows console functions
Conflicts:
libavutil/log.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Not all versions of windows have the console color functions,
while io.h might be needed for isatty (which can be found in
unistd.h or io.h).
Signed-off-by: Martin Storsjö <martin@martin.st>
* qatar/master:
avutil: Include io.h with a separate condition from MapViewOfFile
cmdutils: Use a configure check for enabling CommandLineToArgvW
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Use the i64 field rather than the string value. Using a string to set a
default sample/pixel format is weird, also the new interface is more
consistent with the rest of the API.
This is technically an API break, but hopefully there are no applications
using this feature outside of FFmpeg. In order to save backward
compatibility with mixed libraries in case libavutil is updated but not
the other libraries, some ifdeffery hacks are added.
Note that the version check is only performed when class->version != 0,
since if it is not defined then we assume that no version was defined and
the class is not affected by the change.
We will luckily get rid of the hack at the next major bump.
The existence of MapViewOfFile isn't linked to the existence of
io.h.
Not all versions of windows have MapViewOfFile (in particular,
Windows Phone 8 and the "metro" windows 8 API subset don't),
while they still have io.h (and need it for open/read/close).
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit 'af7d13ee4a4bf8d708f9b0598abb8f6e22b76de1':
asink_nullsink: plug a memory leak.
x86: h264_idct: port to cpuflags
x86: cpu: Drop unused HAVE_RWEFLAGS condition
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '3c370f5abc55739a261534b9f9bdc739cedbbbb9':
riff: only warn on a bad INFO chunk code size instead of failing
configure: Add separate list for libraries and use where appropriate
x86: float_dsp: add SSE version of vector_fmul_scalar()
Conflicts:
configure
libavformat/riff.c
libavutil/x86/float_dsp.asm
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '284ea790d89441fa1e6b2d72d3c1ed6d61972f0b':
dsputil: move vector_fmul_scalar() to AVFloatDSPContext in libavutil
aacenc: use the correct output buffer
aacdec: fix signed overflows in lcg_random()
base64: fix signed overflow in shift
Conflicts:
libavcodec/dsputil.c
libavutil/base64.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Make the functions av_samples_fill_arrays, av_samples_alloc, and
avcodec_fill_audio_frame return a buffer size rather than 0 in case of
success. This will be enabled at the next libavutil major bump, in order
to preserve backward compatibility.
Returning the size allows to simplify the code, avoiding a few function
calls.
Preventing the use of discouraged or 'insecure' external functions
through defines in an internal header is not a good solution. The
header is not guaranteed to be included universally which makes
overlooking bad use of said functions during review more likely.
There are cases were those functions either are the most straight
forward solution or even have to be used. Using malloc or free is
required if the allocation or release is done by other libraries.
- Add special cases for offsets of 2, 3, or 4 bytes. This means the
offset is always >4 in the generic case, allowing 32-bit copies to
be used there.
- Don't use memcpy() for sizes less than 16 bytes.
Signed-off-by: Mans Rullgard <mans@mansr.com>
