105 Commits

Author SHA1 Message Date
Timothy Gu
1ae4b1e09d mem: Extend and edit Doxygen 2016-08-21 13:22:15 -07:00
Timothy Gu
ec234ccea4 mem: Order function prototypes semantically 2016-08-02 15:17:31 -07:00
Zhao Zhili
450cf400fc avutil/mem: fix wrong comment
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2016-07-18 22:52:36 +02:00
Michael Niedermayer
fc91eeab0b avutil/mem: Add av_fast_mallocz()
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-11-18 22:05:16 +01:00
Ganesh Ajjanagadde
cf52ae003b avutil/mem: add av_warn_unused_result
This adds av_warn_unused_result to functions whose return codes need to
be checked.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-10-16 19:53:55 -04:00
Michael Niedermayer
c8571c61ec Merge commit '8ddc32629a6d6be77256694c9e322dde134609f3'
* commit '8ddc32629a6d6be77256694c9e322dde134609f3':
  mem: add av_strndup() for duplicating substrings

Conflicts:
	libavutil/mem.c
	libavutil/mem.h
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-14 00:29:06 +02:00
Anton Khirnov
8ddc32629a mem: add av_strndup() for duplicating substrings 2014-08-13 17:24:18 +00:00
Michael Niedermayer
8f6d36b3cb avutil/mem: document NULL related saftey of av_freep()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-08-04 02:34:54 +02:00
Lukasz Marek
cd50a44beb lavu/mem: add av_dynarray_add_nofree function
av_dynarray_add_nofree function have similar functionality
as existing av_dynarray_add, but it doesn't deallocate memory
on fails.

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
2014-03-29 09:48:48 +01:00
Michael Niedermayer
7c888ae746 Merge commit 'cce3e0a49f0dd030262c28d9c53de0bd2fd909c4'
* commit 'cce3e0a49f0dd030262c28d9c53de0bd2fd909c4':
  Move av_fast_{m,re}alloc from lavc to lavu.

Conflicts:
	libavcodec/avcodec.h
	libavcodec/utils.c
	libavutil/mem.c
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-11-14 15:04:04 +01:00
Anton Khirnov
cce3e0a49f Move av_fast_{m,re}alloc from lavc to lavu. 2013-11-14 09:42:22 +01:00
Michael Niedermayer
3fcc2684e4 Merge commit 'b284e1ffe343d6697fb950d1ee517bafda8a9844'
* commit 'b284e1ffe343d6697fb950d1ee517bafda8a9844':
  mem: do not check for negative size

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-10-26 21:49:04 +02:00
Vittorio Giovara
b284e1ffe3 mem: do not check for negative size
size_t is guaranteed to be unsigned

Signed-off-by: Anton Khirnov <anton@khirnov.net>
2013-10-26 09:05:56 +02:00
Michael Niedermayer
c74c3fb142 Merge commit '3feb3d6ce4be0a09a9f8f13d613bed25b523b6e7'
* commit '3feb3d6ce4be0a09a9f8f13d613bed25b523b6e7':
  mem: Introduce av_reallocp

Conflicts:
	doc/APIchanges
	libavutil/mem.c
	libavutil/mem.h
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-17 11:06:26 +02:00
Luca Barbato
3feb3d6ce4 mem: Introduce av_reallocp 2013-09-16 19:36:37 +02:00
Michael Niedermayer
61b3b58720 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  mem: Document the non-compatibility of av_realloc() and av_malloc()

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-15 11:57:02 +02:00
Diego Biurrun
9997a812e7 mem: Document the non-compatibility of av_realloc() and av_malloc() 2013-09-14 17:38:01 +02:00
Michael Niedermayer
92424a45d0 Merge commit 'b634b36fcebfe16b837b6c4044f5d5cb99a75040'
* commit 'b634b36fcebfe16b837b6c4044f5d5cb99a75040':
  mem: Improve documentation wording and spelling

Conflicts:
	libavutil/mem.c
	libavutil/mem.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-06 12:05:02 +02:00
Diego Biurrun
b634b36fce mem: Improve documentation wording and spelling 2013-09-05 12:38:43 +02:00
Michael Niedermayer
1c10e89c51 Merge commit 'b4ec7a5fee644ad9882e10c097817b65447b8e55'
* commit 'b4ec7a5fee644ad9882e10c097817b65447b8e55':
  mem: Document the av_realloc family of functions properly

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-04 13:57:01 +02:00
Luca Barbato
b4ec7a5fee mem: Document the av_realloc family of functions properly
realloc() does not accept pointers from memalign().
2013-09-04 10:56:41 +02:00
Michael Niedermayer
30b491f1c9 Merge commit '3b4feac1ec14f861bdd7f494f288f4d8dd7f449e'
* commit '3b4feac1ec14f861bdd7f494f288f4d8dd7f449e':
  movenc: Keep track of the allocated size for the cluster array
  mem: Add av_realloc_array and av_reallocp_array

Conflicts:
	doc/APIchanges
	libavformat/movenc.c
	libavutil/mem.c
	libavutil/mem.h
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-06-05 11:19:16 +02:00
Martin Storsjö
fc962d4e7a mem: Add av_realloc_array and av_reallocp_array
These help avoiding overflows and simplify error handling.

Signed-off-by: Martin Storsjö <martin@martin.st>
2013-06-04 15:04:08 +03:00
Stefano Sabatini
e3984166a4 lavu/mem: add av_dynarray2_add()
Based on a patch by Clément Bœsch.

See thread:
From: Clément Bœsch <ubitux@gmail.com>
Subject: [FFmpeg-devel] [PATCH 1/5] lavu: add av_dynarray_alloc_elem().
Date: Sun, 14 Apr 2013 03:07:54 +0200
2013-05-13 13:52:31 +02:00
Stefano Sabatini
eeb9a4928d lavu/mem.h: fix typo 2013-05-10 10:32:59 +02:00
Stefano Sabatini
ee9794ed20 lavu/mem: fix potential int overflow and crash in av_dynarray_add()
Also extend documentation accordingly.
2013-05-08 01:39:12 +02:00
Stefano Sabatini
c773adee3f lavu/mem: extend documentation for av_dynarray_add()
In particular, mention the fact that the amortized element addition cost
is constant.
2013-05-08 01:39:12 +02:00
Michael Niedermayer
89b5039ff2 avutil/mem: add av_memdup()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-02 13:44:05 +02:00
Michael Niedermayer
aa604e8e33 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  avutil: Make LZO decoder code configure-time selectable
  avutil: Move memcpy_backptr() to mem.c
  configure: detect parisc64 automatically
  configure: detect ppc64 automatically
  configure: detect mips64 automatically
  configure: generalise 64-bit test
  smoothstreamingenc: Don't assume streams start from timestamp 0

Conflicts:
	configure
	libavutil/Makefile
	libavutil/lzo.c
	libavutil/lzo.h
	libavutil/mem.c
	libavutil/mem.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-25 13:15:58 +02:00
Diego Biurrun
5bac2d0c30 avutil: Move memcpy_backptr() to mem.c
The function is used elsewhere and does not belong with the LZO code.
2012-10-25 11:36:57 +02:00
Michael Niedermayer
6912e7a008 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  configure: Group math functions into a separate variable
  avutil/mem: K&R formatting cosmetics
  avutil/lzo: K&R formatting cosmetics

Conflicts:
	configure
	libavutil/mem.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-20 13:18:59 +02:00
Diego Biurrun
5532cf3178 avutil/mem: K&R formatting cosmetics 2012-10-20 02:34:29 +02:00
Mans Rullgard
8c5ed7a66a mem: fix typo in check for __ICC
Signed-off-by: Mans Rullgard <mans@mansr.com>
2012-09-10 00:07:26 +01:00
Michael Niedermayer
c581cb4e4f Merge remote-tracking branch 'qatar/master'
* qatar/master:
  Fix even more missing includes after the common.h removal
  build: Factor out rangecoder dependencies to CONFIG_RANGECODER
  build: Factor out error resilience dependencies to CONFIG_ERROR_RESILIENCE
  x86: avcodec: Consistently name all init files
  Add more missing includes after removing the implicit common.h
  Add some more missing includes after removing the implicit common.h
  Don't include common.h from avutil.h
  rtmp: Automatically compute the hash for SWFVerification

Conflicts:
	configure
	doc/APIchanges
	doc/examples/decoding_encoding.c
	libavcodec/Makefile
	libavcodec/assdec.c
	libavcodec/audio_frame_queue.c
	libavcodec/avpacket.c
	libavcodec/dv_profile.c
	libavcodec/dwt.c
	libavcodec/libtheoraenc.c
	libavcodec/rawdec.c
	libavcodec/rv40dsp.c
	libavcodec/tiff.c
	libavcodec/tiffenc.c
	libavcodec/v210dec.h
	libavcodec/vc1dsp.c
	libavcodec/x86/Makefile
	libavfilter/asrc_anullsrc.c
	libavfilter/avfilter.c
	libavfilter/buffer.c
	libavfilter/formats.c
	libavfilter/vf_ass.c
	libavfilter/vf_drawtext.c
	libavfilter/vf_fade.c
	libavfilter/vf_select.c
	libavfilter/video.c
	libavfilter/vsrc_testsrc.c
	libavformat/version.h
	libavutil/audioconvert.c
	libavutil/error.h
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-08-16 16:20:30 +02:00
Martin Storsjö
1d9c2dc89a Don't include common.h from avutil.h
Signed-off-by: Martin Storsjö <martin@martin.st>
2012-08-15 22:32:06 +03:00
Michael Niedermayer
fbe02459dc Merge remote-tracking branch 'qatar/master'
* qatar/master:
  configure: Check for CommandLineToArgvW
  vc1dec: Do not use random pred_flag if motion vector data is skipped
  vp8: Enclose pthread function calls in ifdefs
  snow: refactor code to work around a compiler bug in MSVC.
  vp8: Include the thread headers before using the pthread types
  configure: Check for getaddrinfo in ws2tcpip.h, too
  vp8: implement sliced threading
  vp8: move data from VP8Context->VP8Macroblock
  vp8: refactor decoding a single mb_row
  doc: update api changes with the right commit hashes
  mem: introduce av_malloc_array and av_mallocz_array

Conflicts:
	configure
	doc/APIchanges
	libavcodec/vp8.c
	libavutil/mem.h
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-16 01:32:52 +02:00
Luca Barbato
f3e5e6f05b mem: introduce av_malloc_array and av_mallocz_array
Both function ease allocating large arrays implementing the overflow
check inside it.
2012-07-14 20:07:25 +02:00
Michael Niedermayer
5a8e994287 mem: add av_max_alloc() to limit the maximum amount that may be allocated in one piece
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-25 18:55:43 +01:00
Michael Niedermayer
0b9a69f244 Merge remote-tracking branch 'qatar/master'
* qatar/master: (22 commits)
  aacdec: Fix PS in ADTS.
  avconv: Consistently use PIX_FMT_NONE.
  dsputil: use cpuflags in x86 emu_edge_core
  dsputil: use movups instead of movdqu in ff_emu_edge_core_sse()
  wma: initialize prev_block_len_bits, next_block_len_bits, and block_len_bits.
  mov: Remove some redundant and obsolete comments.
  Add libavutil/mathematics.h #includes for INFINITY
  doxy: structure libavformat groups
  doxy: introduce an empty structure in libavcodec
  doxy: provide a start page and document libavutil
  doxy: cleanup pixfmt.h
  regtest: split video encode/decode tests into individual targets
  ARM: add explicit .arch and .fpu directives to asm.S
  pthread: do not touch has_b_frames
  avconv: cleanup the transcoding loop in output_packet().
  avconv: split subtitle transcoding out of output_packet().
  avconv: split video transcoding out of output_packet().
  avconv: split audio transcoding out of output_packet().
  avconv: reindent.
  avconv: move streamcopy-only code out of decoding loop.
  ...

Conflicts:
	avconv.c
	libavcodec/aaccoder.c
	libavcodec/pthread.c
	libavcodec/version.h
	libavutil/audioconvert.h
	libavutil/avutil.h
	libavutil/mem.h
	tests/ref/vsynth1/dv
	tests/ref/vsynth1/mpeg2thread
	tests/ref/vsynth2/dv
	tests/ref/vsynth2/mpeg2thread

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-11-23 04:02:17 +01:00
Luca Barbato
757cd8d876 doxy: provide a start page and document libavutil
Introduce a basic layout, the subpages are currently left empty.

Split libavutil in multiple groups as example of the structure
2011-11-22 17:16:02 +01:00
Nicolas George
5cd754bca2 Introduce av_realloc_f.
av_realloc_f helps avoiding memory-leaks in typical uses of realloc.

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-28 18:13:52 +02:00
Nicolas George
b2600509fe Introduce av_size_mult.
av_size_mult helps checking for overflow when computing the size of a memory
area.

Signed-off-by: Nicolas George <nicolas.george@normalesup.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-28 18:13:52 +02:00
Laurent Aimar
ccecab4a0d Add av_calloc() helper.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-09-25 00:55:25 +02:00
Michael Niedermayer
042f9d62ca Merge remote-tracking branch 'qatar/master'
* qatar/master:
  configure: Automatically add more flags required on symbian
  mem.h: switch doxygen parameter order to match function prototype
  doxygen: replace @sa tag by the more readable but equivalent @see
  doxygen: use Doxygen markup for authors and web links where appropriate
  doxygen: do not include license boilerplate in Doxygen documentation
  ac3enc: Mark AVClasses const
  ffserver: Replace two loops with one loop.
  ffmpeg: Fix the check for experimental codecs
  swscale: extend mmx padding.
  swscale: clip unscaled colorspace conversion path.
  doxygen: misc consistency cosmetics
  doc: remove file name from @file directive in Doxygen usage example
  doxygen: consistently place brief description
  doxygen: place empty line between brief description and detailed description
  avformat_open_input(): Add braces to shut up gcc warning.

Conflicts:
	libavcodec/8svx.c
	libavcodec/tiff.c
	libavcodec/tiff.h
	libavcodec/vaapi_h264.c
	libavcodec/vorbis.c
	libavcodec/vorbisdec.c
	libavcodec/vp6.c
	libswscale/swscale_unscaled.c
	libswscale/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-07-15 17:51:09 +02:00
Diego Biurrun
66f6bab7ad mem.h: switch doxygen parameter order to match function prototype 2011-07-15 02:01:22 +02:00
Michael Niedermayer
ffb5a0d533 Merge commit '85770f2a2651497861ed938efcd0df3696ff5e45'
* commit '85770f2a2651497861ed938efcd0df3696ff5e45':
  AVOptions: make default_val a union, as proposed in AVOption2.
  Move ff_dynarray_add to lavu and make it public.
  lavf: remove duplicate assignment in avformat_alloc_context.
  lavf: use designated initializers for AVClasses.
  options: simplify av_find_opt by using av_next_option.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-05-01 00:26:05 +02:00
Anton Khirnov
35ceaa7376 Move ff_dynarray_add to lavu and make it public. 2011-04-29 17:34:56 +02:00
Michael Niedermayer
efb5fa79f5 Merge remote branch 'qatar/master'
* qatar/master: (37 commits)
  In avcodec_open(), set return code to an error value only when an error occurs instead of unconditionally at the start of the function.
  lavc: remove reference to opt.h from Makefile.
  prefer avio_check() over url_exist()
  avio: remove AVIO_* access symbols in favor of new AVIO_FLAG_* symbols
  lavu: remove misc disabled cruft
  lavu: remove FF_API_OLD_IMAGE_NAMES cruft
NOT PULLED  lavu: remove FF_API_OLD_EVAL_NAMES cruft
  lavc: remove misc disabled cruft.
  lavc: remove the FF_API_INOFFICIAL cruft.
  lavc: remove the FF_API_SET_STRING_OLD cruft.
  lavc: remove the FF_API_USE_LPC cruft.
  lavc: remove the FF_API_SUBTITLE_OLD cruft.
  lavc: remove the FF_API_VIDEO_OLD cruft.
  lavc: remove the FF_API_AUDIO_OLD cruft.
  lavc: remove the FF_API_OPT_SHOW cruft.
  lavc: remove the FF_API_MM_FLAGS cruft.
  lavf: remove misc disabled cruft.
  lavf: remove FF_API_INDEX_BUILT cruft
  lavf: remove FF_API_URL_CLASS cruft.
  lavf: remove FF_API_SYMVER cruft
  ...

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-04-20 04:48:23 +02:00
Anton Khirnov
490a022d86 lavu: remove misc disabled cruft 2011-04-19 19:04:28 +02:00
Michael Niedermayer
2fd41c9067 Merge remote-tracking branch 'newdev/master'
* 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>
2011-03-24 02:16:11 +01:00