This uses explicit memory copying to read and write pointer to pointers
of arbitrary object types. This works provided that the architecture
uses the same representation for all pointer types (the previous code
made that assumption already anyway).
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
This avoids a potential conflict with the equally named function from XOPEN
It also could reduce confusion in debugger backtraces
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '728685f37ab333ca35980bd01766c78d197f784a':
Add a side data type for audio service type.
Conflicts:
doc/APIchanges
libavcodec/avcodec.h
libavcodec/version.h
libavutil/frame.h
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '0e6c7dfa650e8b0497bfa7a06394b7a462ddc33a':
lavu: add planar 16 bit and 8 bit rgb with alpha
Conflicts:
libavutil/pixdesc.c
libavutil/pixfmt.h
libavutil/version.h
See: e6d4e68755
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Move the lavc/imgconvert functions and rename them as follows:
avpicture_get_size -> av_image_get_buffer_size()
avpicture_fill -> av_image_fill_arrays()
avpicture_layout -> av_image_copy_to_buffer()
The new functions have an align parameter, which allows to define the
linesize alignment assumed in the buffer (which is set or read).
The names of the functions are consistent with the lavu/samples API
(av_samples_get_buffer_size(), av_samples_fill_arrays()).
A redundant check has been dropped from av_image_fill_arrays().
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
Signed-off-by: Supraja Meedinti <supraja0493@gmail.com>
Previous version of this patch reviewed-by: Giorgio Vazzana <mywing81@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Supraja Meedinti <supraja0493@gmail.com>
Previous version reviewed-by: Giorgio Vazzana <mywing81@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The error path frees all side data, but forgets to reset the side data
count. This can blow up later in av_frame_unref() and free_side_data().
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '780cd20b00a69e26bbfffbb8eec16fbe999ea793':
aarch64: Use .data.rel.ro for const data with relocations
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'f963f80399deb1a2b44c1bac3af7123e8a0c9e46':
arm: Use .data.rel.ro for const data with relocations
Conflicts:
configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'fbd6c97f9ca858140df16dd07200ea0d4bdc1a83':
lavu: fix memory leaks by using a mutex instead of atomics
Conflicts:
libavutil/buffer.c
The atomics code is left in place as a fallback for synchronization in the
absence of p/w32 threads. Our ABI did not requires applications to
only use threads (and matching ones) to what libavutil was build with
Our code also was not affected by the leak this change fixes, though
no question the atomics based implementation is not pretty at all.
First and foremost the code must work, being pretty comes after that.
If this causes problems, for example when libavutil is used by multiple
applications each using a different kind of threading system then the
default possibly has to be changed to the uglier atomics.
See: cea3a63ba3
Merged-by: Michael Niedermayer <michaelni@gmx.at>
The buffer pool has to atomically add and remove entries from the linked
list of available buffers. This was done by removing the entire list
with a CAS operation, working on it, and then setting it back again
(using a retry-loop in case another thread was doing the same thing).
This could effectively cause memory leaks: while a thread was working on
the buffer list, other threads would allocate new buffers, increasing
the pool's total size. There was no real leak, but since these extra
buffers were not needed, but not free'd either (except when the buffer
pool was destroyed), this had the same effects as a real leak. For some
reason, growth was exponential, and could easily kill the process due
to OOM in real-world uses.
Fix this by using a mutex to protect the list operations. The fancy
way atomics remove the whole list to work on it is not needed anymore,
which also avoids the situation which was causing the leak.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Also add no-op fallbacks when threading is disabled.
This helps keeping the code clean if Libav is compiled for targets
without threading. Since we assume that no threads of any kind are used
in such configurations, doing nothing is ok by definition.
Based on a patch by wm4 <nfxjfg@googlemail.com>.
Ensures that the header include order is such that winsock2.h is always
included before windows.h or that windows.h does not include winsock.h.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '9326d64ed1baadd7af60df6bbcc59cf1fefede48':
Share the utf8 to wchar conversion routine between lavf and lavu
Conflicts:
libavformat/os_support.h
libavutil/file_open.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
This doesn't add any dependency on library internals, since this
only is a static inline function that gets built into each of the
calling functions - this is only to reduce the code duplication.
Signed-off-by: Martin Storsjö <martin@martin.st>
* commit '277ff7f5dc134f1c2dfc4ea0ef3540340482e3d2':
lavu: move internal define to the only places where it is used
Conflicts:
libavcodec/h264_cabac.c
libavutil/internal.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Function allows to create string containing object's serialized options.
Such string may be passed back to av_set_options_string() in order to restore options.
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
In general this commit prepares opt tests to be added to fate.
The commit set some non-zero defaults for test options.
It allows to check if defaults are really set.
Added printing of default values.
Added more cases for testing av_set_options_string
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
The emulation is unused and causes compilation trouble on systems
where fminf() is defined in <math.h> but missing from libm.
This should fix compilation on Debian powerpcspe.
* commit '4981baf9b803f3c4866b2e97fdadb008c62dc7ad':
avstring: Mark some character handling functions av_const
Merged-by: Michael Niedermayer <michaelni@gmx.at>
__sync built-ins are considered legacy and will be deprecated.
These new memory model aware built-ins have been available since GCC 4.7.0
Use them by default when available except for __atomic_compare_exchange_n(),
which is slower, and is instead implemented as a fallback for when and if gcc
removes the legacy __sync built-ins.
Reviewed-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: James Almer <jamrial@gmail.com>
* commit '82ee7d0dda0fec8cdb670f4e844bf5c2927ad9de':
Use gmtime_r instead of gmtime and localtime_r instead of localtime
Conflicts:
libavformat/mov.c
libavformat/mxfenc.c
libavformat/wtvdec.c
libavutil/parseutils.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '3f8f1c6ff24ee858eb5b0bf47ef6d4605299a87e':
lavu: Provide fallbacks for gmtime_r and localtime_r
Conflicts:
configure
Merged-by: Michael Niedermayer <michaelni@gmx.at>
gmtime isn't thread safe in general. In msvcrt (which lacks gmtime_r),
the buffer used by gmtime is thread specific though.
One call to localtime is left in avconv_opt.c, where thread safety
shouldn't matter (instead of making avconv depend on the libavutil
internal header).
Signed-off-by: Martin Storsjö <martin@martin.st>
This allows writing most code as if they always are is available.
These are ok to use from other libraries even though it's not a
public header, since they only provide an inline declaration, and
doesn't add an actual dependency on lavu internals. (This can be
considered more a build system compatibility fallback than a
libavutil feature.)
Signed-off-by: Martin Storsjö <martin@martin.st>
Since av_gettime() is used in a number of places where actual
real time clock is required, the monotonic clock introduced in
ebef9f5a5 would have consequences that are hard to handle. Instead
split it into a separate function that can be used in the cases
where only relative time is desired.
On platform where no monotonic clock is available, the difference
between the two av_gettime functions is not clear, and one could
mistakenly use the relative clock where an absolute one is
required. Therefore add an offset, to make it evident that the
time returned from av_gettime_relative never is actual current
real time, even though it is based on av_gettime.
Based on a patch by Olivier Langlois.
Signed-off-by: Martin Storsjö <martin@martin.st>
av_match_list() is only used for whitelists, fix it so it works with
multi-named formats like "mov,mp4,m4a,3gp,3g2,mj2"
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '04ccd584a70fad4ebb29ca340d704970ff313cbc':
pixfmt: mark further reserved values
Conflicts:
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'c732c62cee43f651775af5547cff99d418248542':
doc: expand description for some color properties
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Add CODEC_FLAG2_SKIP_MANUAL (exposed as "skip_manual"), which makes
the decoder export sample skip information via side data, instead
of applying it automatically. The format of the side data is the
same as AV_PKT_DATA_SKIP_SAMPLES, but since AVPacket and AVFrame
side data constants overlap, AV_FRAME_DATA_SKIP_SAMPLES needs to
be introduced.
This is useful for applications which want to do the timestamp
calculations manually, or which actually want to retrieve the
padding.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This avoids several failures on fate.ffmpeg.org, and thus makes real
bugs easier to spot
Reviewed-by: James Darnley <james.darnley@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Add the feature test macro which is required for building with the
musl toolchain.
The feature test macro _XOPEN_SOURCE = 600 provides the XSI-compliant
version of strerror_r().
Signed-off-by: Jörg Krause <jkrause@posteo.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Unfortunately this was not explicitly documented and thus
might be risky.
But all uses I could find in FFmpeg and one in VLC had a memleak
in these cases, and I could not find any that relied on the previous
behaviour.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
~560 → ~500 decicycles
This is following the comments from Michael in
https://ffmpeg.org/pipermail/ffmpeg-devel/2014-August/160599.html
Using 2 registers for accumulator didn't help. On the other hand,
some re-ordering between the movs and psadbw allowed going ~538 to ~500.
The reasoning behind this addition is that various third party
applications are interested in getting some motion information out of a
video "for free" when it is available.
It was considered to export other information as well (such as the intra
information about the block, or the quantization) but the structure
might have ended up into a half full-generic, half full of codec
specific cruft. If more information is necessary, it should either be
added in the "flags" field of the AVMotionVector structure, or in
another side-data.
This commit also includes an example exporting them in a CSV stream.
This allows getting rid of the many, slightly differing, implementations
of basically the same thing.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
In order to support metadata being set as an option, it's necessary to be able
to set dictionaries as values.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
this allows disabling and enabling it
it also prevents crashes if vfpv3 and neon are disabled which previously
would have enabled the flag
And last but not least one can enable setend on cpus like cortex-a8 where
its fast but disabled by default
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
It was wrongly being exported and used by libavfilter.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This prevents a build failure when bumping.
the uses could easily be updated / removed, if people prefer.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'f4c444e17d137c786f0ed2da0e5943df505d5f9e':
Postpone API-incompatible changes until the next bump.
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Errors go to stderr, but the cpu stats are non error output for cputest
This fixes echoing the cpu test results
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The arrays are fairly large and could cause problems on some embedded systems
also they are not endian safe as they mix 32 and 8bit
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
The rationale is that you have a packed format in form
<greyscale sample> <alpha sample> <greyscale sample> <alpha sample>
and shortening greyscale to 'G' might make one thing about Greenscale instead.
An alias pixel format and color space name are provided for compatibility.
* commit 'bb41115d56930b9f5d59e79dca254d1201246967':
imgutils: Do not declare avpriv_set_systematic_pal2 in the public header
Conflicts:
libavutil/internal.h
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit 'a238b83b13640e3192d7d4aaad2242f13a9a84a1':
aarch64: use MACH-O const data asm directive in const macro
Merged-by: Michael Niedermayer <michaelni@gmx.at>
* commit '07d8fa58121be8fe315bd51ab760547fe209a745':
fate: add informative cpu test
Conflicts:
tests/fate/libavutil.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>
libavutil/cpu-test prints raw and effective cpu flags to STDERR. Detected
cpu flags can be useful for debugging fate errors.
No comparison of the result against a expected result since that would
require fate config specific references.
Up to four instructions less depending on function and instruction set.
Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '69e7336b8e16ee65226fc20381baf537f4b125e6':
avstring: Expose the simple name match function
Conflicts:
libavutil/avstring.c
libavutil/avstring.h
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Only 8-bit and 10-bit idct_dc() functions are included (adding others should be trivial).
Benchmarks on an Intel Core i5-4200U:
idct8x8_dc
SSE2 MMXEXT C
cycles 22 26 57
idct16x16_dc
AVX2 SSE2 C
cycles 27 32 249
idct32x32_dc
AVX2 SSE2 C
cycles 62 126 1375
Signed-off-by: James Almer <jamrial@gmail.com>
Reviewed-by: Mickaël Raulet <mraulet@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* commit '6869612f5c7d4d2f20f69a5658328a761deadb1c':
arm: Macroize the test for 'setend' CPU instruction support
Conflicts:
libavcodec/arm/h264dsp_init_arm.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>
I benchmarked the result by measuring the number of gperftools samples that
hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
specifically in butterflies_float_c() / ff_butterflies_float_vfp() for the
same sample AAC stream:
Before After
Mean StdDev Mean StdDev Confidence Change
Audio decode 1542.8 43.7 1470.5 41.5 100.0% +4.9%
butterflies_float 130.0 11.9 70.2 12.1 100.0% +85.2%
Signed-off-by: Martin Storsjö <martin@martin.st>
I benchmarked the result by measuring the number of gperftools samples that
hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
specifically in vector_fmul_window_c() / ff_vector_fmul_window_vfp() for the
same sample AAC stream:
Before After
Mean StdDev Mean StdDev Confidence Change
Audio decode 1598.2 47.4 1529.2 25.4 100.0% +4.5%
vector_fmul_window 244.0 22.1 188.9 22.3 100.0% +29.2%
Signed-off-by: Martin Storsjö <martin@martin.st>
I benchmarked the result by measuring the number of gperftools samples that
hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
specifically in butterflies_float_c() / ff_butterflies_float_vfp() for the
same sample AAC stream:
Before After
Mean StdDev Mean StdDev Confidence Change
Audio decode 1542.8 43.7 1470.5 41.5 100.0% +4.9%
butterflies_float 130.0 11.9 70.2 12.1 100.0% +85.2%
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
I benchmarked the result by measuring the number of gperftools samples that
hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
specifically in vector_fmul_window_c() / ff_vector_fmul_window_vfp() for the
same sample AAC stream:
Before After
Mean StdDev Mean StdDev Confidence Change
Audio decode 1598.2 47.4 1529.2 25.4 100.0% +4.5%
vector_fmul_window 244.0 22.1 188.9 22.3 100.0% +29.2%
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
MSVC does not allow passing file pointers between libs
This API can thus not work with MSVC and as it was very recently added
and its it was in no release its removial should not cause any problems
A better API will be implemented, but its not finished yet, this revert is
to avoid potentially blocking the release
Found-by: Hendrik Leppkes <h.leppkes@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
