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* avutil/attributes: add support for clang in AV_NOWARN_DEPRECATEDJames Almer2022-03-16
| | | | | Reviewed-by: Martin Storsjö <martin@martin.st> Signed-off-by: James Almer <jamrial@gmail.com>
* avutil/attributes: Fix too many warning: false is not defined [-Wundef]Limin Wang2020-05-30
| | | | | | Reviewed-by: James Almer <jamrial@gmail.com> Reviewed-by: Hendrik Leppkes <h.leppkes@gmail.com> Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
* Use gcc/clang builtins for av_sat_(add|sub)_64_c if available.Dale Curtis2020-05-27
| | | | | Signed-off-by: Dale Curtis <dalecurtis@chromium.org> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* Merge commit '8e2346154e6d58b733fd20326ce706f82fd91b3e'James Almer2017-10-21
|\ | | | | | | | | | | | | * commit '8e2346154e6d58b733fd20326ce706f82fd91b3e': libavutil: Hook up the rest of the gcc specific attributes to clang as well Merged-by: James Almer <jamrial@gmail.com>
| * libavutil: Hook up the rest of the gcc specific attributes to clang as wellMartin Storsjö2017-03-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hook up all attributes that don't have a MSVC specific version at the moment. See f637046d313 for details. These don't seem to be critical for building with clang in MSVC mode though, and thus haven't been hooked up until now. These seem to build fine with as old clang as 3.3 at least. (clang 3.3 disguises itself as gcc 4.2 normally, so all of these have been used for clang before, except for av_cold.) The clang version numbers themselves are useless for detecting what attributes are available, since Apple's clang builds use a completely different versioning (presenting itself as e.g. clang 8.0 instead of 3.8). Signed-off-by: Martin Storsjö <martin@martin.st>
* | Merge commit '3aa9c523e9cf4f4a5e239ac737281e096c884907'James Almer2017-10-21
|\| | | | | | | | | | | | | * commit '3aa9c523e9cf4f4a5e239ac737281e096c884907': libavutil: Define the noreturn attribute for clang in MSVC mode as well Merged-by: James Almer <jamrial@gmail.com>
| * libavutil: Define the noreturn attribute for clang in MSVC mode as wellMartin Storsjö2017-03-21
| | | | | | | | | | | | | | | | | | | | | | This is a follow-up to f637046d313. Without the noreturn attribute set, avconv_opt.c fails to build after d2e6dd32a44 with the error "control may reach end of non-void function". By making sure the noreturn attribute is set properly, this compiles as intended. Signed-off-by: Martin Storsjö <martin@martin.st>
* | Merge commit 'f637046d3134a331e4b5a7243ac3dfb92735b8a5'Clément Bœsch2017-02-02
|\| | | | | | | | | | | | | * commit 'f637046d3134a331e4b5a7243ac3dfb92735b8a5': libavutil: Always use some GCC style attributes on clang Merged-by: Clément Bœsch <cboesch@gopro.com>
| * libavutil: Always use some GCC style attributes on clangMartin Storsjö2016-07-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clang normally disguises as GCC (defining __GNUC__), and thus get all the normal GCC specific attributes. Clang can also work as a drop-in replacement for MSVC, and in these cases, it doesn't define __GNUC__, but defines _MSC_VER instead. Even in these setups, it still supports the GCC style attributes, thus use them, especially where there isn't any MSVC specific version, or where the MSVC specific version doesn't work on clang (for DECLARE_ASM_CONST). Signed-off-by: Martin Storsjö <martin@martin.st>
* | avutil/attributes: add av_warn_unused_resultGanesh Ajjanagadde2015-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | GCC 3.4 introduced an attribute warn_unused_result to warn when a programmer discards the return value. Applying this judiciously across the codebase can help in fixing a lot of problems. At a high level, functions which return error codes should always be checked. More concretely, consider the functions ff_add_format and the like in avfilter/formats.h. A quick examination shows that a large portion of libavfilter fails to handle the associated errors, usually AVERROR(ENOMEM). The above example was where I observed the utility of this, but it should be useful in many places across the code base. Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
* | avutil/attributes: add AV_GCC_VERSION_AT_MOSTJames Almer2015-09-18
| | | | | | | | | | Reviewed-by: Michael Niedermayer <michaelni@gmx.at> Signed-off-by: James Almer <jamrial@gmail.com>
* | avutil/attributes: Add () to protect the AV_GCC_VERSION_AT_LEAST() argumentsMichael Niedermayer2015-02-17
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | Merge commit '5858a67f135a7395c548482c73cf3d39bcdd3022'Michael Niedermayer2013-11-03
|\| | | | | | | | | | | | | * commit '5858a67f135a7395c548482c73cf3d39bcdd3022': attributes: disable flatten on llvm/clang Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * attributes: disable flatten on llvm/clangVittorio Giovara2013-11-03
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* | lavu/attributes: Don't define av_restrictAlex Smith2013-09-21
| | | | | | | | | | | | This is always defined in config.h. Original patch by Derek Buitenhuis.
* | Merge commit '33b88f2a4ae54d5397c45e39a5326289ebdc7747'Michael Niedermayer2013-09-20
|\| | | | | | | | | | | | | * commit '33b88f2a4ae54d5397c45e39a5326289ebdc7747': msvc/icl: Use __declspec(noinline) Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * msvc/icl: Use __declspec(noinline)Alex Smith2013-09-20
| | | | | | | | Signed-off-by: Martin Storsjö <martin@martin.st>
| * msvc/icl: Use __declspec(deprecated)Alex Smith2013-09-20
| | | | | | | | | | | | | | | | | | | | | | Prior to this on msvc/icl there was no handling of deprecated functions and the deprecated warning was disabled. After enabling there are a number of warnings relating to the CRT and the use of the non-secure versions of several functions. Defining _CRT_SECURE_NO_WARNINGS silences these warnings. Signed-off-by: Martin Storsjö <martin@martin.st>
* | lavu: provide msvc implementation of attribute_deprecatedKirill Gavrilov2013-09-06
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | lavu: disable av_uninit for clangPaul B Mahol2012-07-16
| | | | | | | | | | | | | | | | This silence bunch of useless warnings like: libavformat/mpeg.c:393:37: warning: variable 'dvdaudio_substream_type' is uninitialized when used within its own initialization [-Wuninitialized] Signed-off-by: Paul B Mahol <onemda@gmail.com>
* | Merge remote-tracking branch 'qatar/master'Michael Niedermayer2012-07-04
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * qatar/master: cosmetics: Consistently use C-style comments with multiple inclusion guards anm: fix a few Doxygen comments misc typo and wording fixes attributes: add av_noreturn attributes: drop pointless define guards configure: do not disable av_always_inline with --enable-small flvdec: initial stream switch support avplay: fix write on freed memory for rawvideo snow: remove a VLA used for edge emulation x86: lavfi: fix gradfun/yadif build with mmx/sse disabled snow: remove the runs[] VLA. snow: Check mallocs at init flacdec: remove redundant setting of avctx->sample_fmt Conflicts: ffplay.c libavcodec/h264.c libavcodec/snow.c libavcodec/snow.h libavcodec/snowdec.c libavcodec/snowenc.c libavformat/flvdec.c libavutil/attributes.h tools/patcheck Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * attributes: add av_noreturnReinhard Tartler2012-07-03
| | | | | | | | | | | | | | Also use it in the declaration of the various exit_program implementations in avtools. inspired by a clang-scan report.
| * attributes: drop pointless define guardsReinhard Tartler2012-07-03
| | | | | | | | the av_-prefixed attributes must not be defined outside of this file
* | Merge remote-tracking branch 'qatar/master'Michael Niedermayer2012-06-30
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * qatar/master: dsputilenc_mmx: split assignment of ff_sse16_sse2 to SSE2 section. dnxhdenc: add space between function argument type and comment. x86: fmtconvert: add special asm for float_to_int16_interleave_misc_* attributes: Add a definition of av_always_inline for MSVC cmdutils: Pass the actual chosen encoder to filter_codec_opts os_support: Add fallback definitions for stat flags os_support: Rename the poll fallback function to ff_poll network: Check for struct pollfd os_support: Don't compare a negative number against socket descriptors os_support: Include all the necessary headers for the win32 open function x86: vc1: fix and enable optimised loop filter Conflicts: cmdutils.c cmdutils.h ffmpeg.c ffplay.c libavformat/os_support.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * attributes: Add a definition of av_always_inline for MSVCRonald S. Bultje2012-06-30
| | | | | | | | Signed-off-by: Martin Storsjö <martin@martin.st>
* | attributes: move av_restrict fallback from internal to attributesMichael Niedermayer2012-06-17
| | | | | | | | | | | | This should fix --enable-hardcoded-tables Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | enable C99-external_inline for iclJ. Bohl2012-06-17
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | revert "extern inline" usageMichael Niedermayer2012-06-15
| | | | | | | | | | | | | | | | | | as it breaks ICC: libavcodec/libavcodec.a(snowenc.o): In function `encode_q_branch': /home/fate/x86_64-linux-gnu-icc-2011.4.191/src/libavcodec/snowenc.c:405: undefined reference to `ff_epzs_motion_search' /home/fate/x86_64-linux-gnu-icc-2011.4.191/src/libavcodec/snowenc.c:414: undefined reference to `ff_get_mb_score' Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | new attribute "extern inline" (fixing linker error with ff_get_mb_score and ↵J. Bohl2012-06-15
| | | | | | | | | | | | ff_get_mb_score) Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | avutil: add av_noreturnMichael Niedermayer2011-11-11
| | | | | | | | Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
* | lavu/attributes: introduce AV_NOWARN_DEPRECATED.Nicolas George2011-09-25
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* | Merge remote-tracking branch 'qatar/master'Michael Niedermayer2011-06-24
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * qatar/master: doxygen: Consistently use '@' instead of '\' for Doxygen markup. Use av_printf_format to check the usage of printf style functions Add av_printf_format, for marking printf style format strings and their parameters ARM: enable thumb for Cortex-M* CPUs nsvdec: Propagate error values instead of returning 0 in nsv_read_header(). build: remove SRC_PATH_BARE variable build: move basic rules and variables to main Makefile build: move special targets to end of main Makefile lavdev: improve feedback in case of invalid frame rate/size vfwcap: prefer "framerate_q" over "fps" in vfw_read_header() v4l2: prefer "framerate_q" over "fps" in v4l2_set_parameters() fbdev: prefer "framerate_q" over "fps" in device context bktr: prefer "framerate" over "fps" for grab_read_header() ALSA: implement channel layout for playback. alsa: support unsigned variants of already supported signed formats. alsa: add support for more formats. ARM: allow building in Thumb2 mode Conflicts: common.mak doc/APIchanges libavcodec/vdpau.h libavdevice/alsa-audio-common.c libavdevice/fbdev.c libavdevice/libdc1394.c libavutil/avutil.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * Add av_printf_format, for marking printf style format strings and their ↵Martin Storsjö2011-06-23
| | | | | | | | | | | | parameters Signed-off-by: Martin Storsjö <martin@martin.st>
* | Merge remote-tracking branch 'newdev/master'Michael Niedermayer2011-03-24
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * newdev/master: avio: make udp_set_remote_url/get_local_port internal. asfdec: also subtract preroll when reading simple index object matroskaenc: remove a variable that's unused after bc17bd9. avio: cosmetics - nicer vertical alignment. Remove unnecessary icc version checks Disable 'attribute "foo" ignored' warnings from icc rtsp: Don't use a locale dependent format string Add xd55 codec tag for XDCAM HD422 720p25 CBR files. configure: get libavcodec version from new version.h header lavc: move the version macros to a new installed header. matroskaenc: simplify get_aac_sample_rates by using ff_mpeg4audio_get_config Do not use format string "%0.3f" for RTSP Range field. Add apply_window_int16() to DSPContext with x86-optimized versions and use it in the ac3_fixed encoder. Document usage of import libraries created by dlltool configure: Set the correct lib target for arm/wince dlltool fate: simplify regression-funcs.sh fate: add support for multithread testing Conflicts: libavformat/rtspdec.c libavutil/attributes.h libavutil/internal.h libavutil/mem.h Merged-by: Michael Niedermayer <michaelni@gmx.at>
| * Remove unnecessary icc version checksMans Rullgard2011-03-23
| | | | | | | | | | | | | | | | With unknown attribute warnings disabled, these checks are no longer needed. Removing them improves readability while having no effect on generated code. Signed-off-by: Mans Rullgard <mans@mansr.com>
| * Replace FFmpeg with Libav in licence headersMans Rullgard2011-03-19
| | | | | | | | Signed-off-by: Mans Rullgard <mans@mansr.com>
| * Rename attribute_used to av_used and move it to attributes.hMans Rullgard2011-01-31
| | | | | | | | | | | | This is consistent with most of the other attribute macros. Signed-off-by: Mans Rullgard <mans@mansr.com>
* | Use macro __INTEL_COMPILER instead of __ICC.Carl Eugen Hoyos2011-03-02
| | | | | | | | | | | | __ICC is not supported on all platforms, this is an Intel documentation bug that is supposed to be fixed in a future release. (Intel issue 612289)
* | Rename attribute_used to av_used and move it to attributes.hMans Rullgard2011-01-31
|/ | | | | | | This is consistent with most of the other attribute macros. Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit 365e3c7878e4e821d5dec922d2d51f92ce13f926)
* Intel C compiler 12.0 does not suport these attributes: may_alias, ↵Carl Eugen Hoyos2010-11-10
| | | | | | force_align_arg_pointer and alloc_size. Originally committed as revision 25716 to svn://svn.ffmpeg.org/ffmpeg/trunk
* av_alias is an attribute and belongs to attributes.hMichael Niedermayer2010-05-13
| | | | | | | | | also attributes.h is public and external api and can thus not depend on configure tested compiler support thus this part is removed. A different solution must be found if this breaks for some compiler which i hope it does not. Originally committed as revision 23115 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Remove explicit filename from Doxygen @file commands.Diego Biurrun2010-04-20
| | | | | | | | Passing an explicit filename to this command is only necessary if the documentation in the @file block refers to a file different from the one the block resides in. Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk
* av_builtin_constant_p()Michael Niedermayer2010-04-02
| | | | Originally committed as revision 22770 to svn://svn.ffmpeg.org/ffmpeg/trunk
* Move gcc attribute macros to new header libavutil/attributes.hMåns Rullgård2010-03-08
Originally committed as revision 22346 to svn://svn.ffmpeg.org/ffmpeg/trunk
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