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Commit Graph

103 Commits

Author SHA1 Message Date
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
Mans Rullgard
820818a330 Remove unnecessary icc version checks
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>
2011-03-23 12:39:58 +00:00
Mans Rullgard
2912e87a6c Replace FFmpeg with Libav in licence headers
Signed-off-by: Mans Rullgard <mans@mansr.com>
2011-03-19 13:33:20 +00:00