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Commit Graph

47 Commits

Author SHA1 Message Date
Devin Heitmueller
85c62b48e9 avcodec/bytestream: fix warnings with signed/unsigned compare in bytestream.h
When including the header in decklink_enc.cpp it would be fed
through the C++ compiler rather than the C compiler, which has
more strict warnings when comparing signed/unsigned values.

Make the local variables unsigned to match the arguments they are
being passed for those functions.

Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>
2023-04-02 21:31:05 +02:00
Andreas Rheinhardt
94dc3385e4 avcodec/bytestream: Add unchecked bytestream2 peek functions
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
2020-09-26 20:38:30 +02:00
Andreas Rheinhardt
7f96325bc4 bytestream: Make get_bytes_left compatible with overread
bytestream2_get_bytes_left returns an unsigned int; as a result,
it returns big positive numbers if an overread already happened,
making it unsuitable for scenarios where one wants to allow this
in a controlled way (because the buffer is actually padded so that
no segfaults can happen). So change it to return an ordinary int.

Also, bytestream2_get_bytes_left_p has been modified in the same way.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2020-03-06 00:58:31 +01:00
James Almer
a1a80a6c9c avcodec/bytestream: check for AV_HAVE_BIGENDIAN instead of HAVE_BIGENDIAN
No need to include config.h for HAVE_BIGENDIAN when libavutil/avconfig.h
is already included.
2017-03-23 14:26:44 -03:00
Michael Niedermayer
98c7f9741e Merge commit '86eee85daddb682fa072c2e2657c90a514b855e3'
* commit '86eee85daddb682fa072c2e2657c90a514b855e3':
  bytestream2: set the reader to the end when reading more than available

Merged-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-12 21:13:07 +02:00
Anton Khirnov
86eee85dad bytestream2: set the reader to the end when reading more than available
This prevents possible infinite loops with the calling code along the
lines of while (bytestream2_get_bytes_left()) { ... }, where the reader
does not advance.

CC: libav-stable@libav.org
2015-07-12 18:15:39 +02:00
Michael Niedermayer
31876ea620 Merge commit '5748faf291fec297ef25d81962b52b3438f54278'
* commit '5748faf291fec297ef25d81962b52b3438f54278':
  bytestream: add bytestream2_copy_buffer() functions

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-04-13 02:06:47 +02:00
Justin Ruggles
5748faf291 bytestream: add bytestream2_copy_buffer() functions
This is basically an overread/overwrite-safe memcpy between a
GetByteContext and a PutByteContext.

CC:libav-stable@libav.org
2014-04-12 14:49:08 -04:00
Paul B Mahol
de9d2705f6 bytestream: add functions for accessing size of buffer
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>

CC:libav-stable@libav.org
2014-04-12 14:49:08 -04:00
Michael Niedermayer
c17dd513e7 bytestream2_init: assert that buf_size is valid
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-06-21 00:58:41 +02:00
Michael Niedermayer
55c49afc42 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  yuv4mpeg: return proper error codes.
  Give all anonymously typedeffed structs in headers a name
  fate: Add parseutils test
  parseutils-test: Drop random colors from parsing test
  vf_pad/scale: use double precision for aspect ratios.
  build: error on variable-length arrays
  ppc: swscale: rework yuv2planeX_altivec()
  ppc: fmtconvert: kill VLA in float_to_int16_interleave_altivec()
  x86: dsputil: kill VLA in gmc_mmx()
  libspeexenc: Updated commentary to reflect recent changes
  libspeexenc: Add an option for enabling DTX
  doc/APIchanges: fill in missing dates and hashes.
  lavr: bump major to 1 and declare it stable.
  lavr: change the type of the data buffers to uint8_t**.
  lavc: deprecate the audio resampling API.

Conflicts:
	cmdutils.h
	configure
	doc/APIchanges
	ffplay.c
	libavcodec/dwt.h
	libavcodec/libspeexenc.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavformat/asf.h
	tests/fate/libavutil.mak
	tests/ref/fate/parseutils

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-06 13:45:08 +02:00
Diego Biurrun
e4cbf7529b Give all anonymously typedeffed structs in headers a name
Anonymous structs cannot be forward declared and have no benefit.
2012-10-06 09:27:11 +02:00
Paul B Mahol
0ee5be4ee4 bytestream: add functions for accessing size of buffer
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-03-21 03:05:19 +01:00
Michael Niedermayer
bae053fca4 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  fate: make compare() function compatible with POSIX bc
  Update Janne's email address.
  APIchanges: Replace Subversion revision numbers by Git hashes.
  bytestream: Eliminate one level of pointless macro indirection.
  xwd: convert to bytestream2.
  vqavideo: port to bytestream2 API
  Read preset files with suffix .avpreset
  prores: allow user to set fixed quantiser
  lavf: remove some disabled code.
  lavf: only set average frame rate for video.
  lavf: remove a pointless check.
  avcodec: add XBM encoder

Conflicts:
	Changelog
	cmdutils.c
	cmdutils.h
	doc/APIchanges
	libavcodec/Makefile
	libavcodec/avcodec.h
	libavcodec/version.h
	libavcodec/vqavideo.c
	libavformat/img2enc.c
	libavformat/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-03-18 23:39:42 +01:00
Diego Biurrun
f03183d9a8 bytestream: Eliminate one level of pointless macro indirection. 2012-03-18 16:07:32 +01:00
Michael Niedermayer
67235dfa1d Merge remote-tracking branch 'qatar/master'
* qatar/master:
  h264: stricter reference limit enforcement.
  h264: increase reference poc list from 16 to 32.
  xa_adpcm: limit filter to prevent xa_adpcm_table[] array bounds overruns.
  snow: check reference frame indices.
  snow: reject unsupported chroma shifts.
  Add ffvhuff encoding and decoding regression test
  anm: convert to bytestream2 API
  bytestream: add more unchecked variants for bytestream2 API
  jvdec: unbreak video decoding
  jv demux: set video stream duration
  fate: add pam image regression test

Conflicts:
	libavcodec/adpcm.c
	libavcodec/anm.c
	libavcodec/h264.c
	libavcodec/mpegvideo.h
	libavcodec/snowdec.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-03-15 01:27:10 +01:00
Paul B Mahol
f1ce053cd0 bytestream: add more unchecked variants for bytestream2 API
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
2012-03-14 13:23:07 -07:00
Michael Niedermayer
8c6ebab747 Merge remote-tracking branch 'qatar/master'
* qatar/master: (26 commits)
  eac3dec: replace undefined 1<<31 with INT32_MIN in noise generation
  yadif: specify array size outside DECLARE_ALIGNED
  prores: specify array size outside DECLARE_ALIGNED brackets.
  WavPack demuxer: set packet duration
  tta: use skip_bits_long()
  mxfdec: Ignore the last entry in Avid's index table segments
  mxfdec: Sanity-check SampleRate
  mxfdec: Handle small EditUnitByteCount
  mxfdec: Consider OPAtom files that do not have exactly one EC to be OP1a
  mxfdec: Don't crash in mxf_packet_timestamps() if current_edit_unit overflows
  mxfdec: Zero nb_ptses in mxf_compute_ptses_fake_index()
  mxfdec: Sanity check PreviousPartition
  mxfdec: Never seek back in local sets and KLVs
  mxfdec: Move the current_partition check inside mxf_read_header()
  mxfdec: Fix infinite loop in mxf_packet_timestamps()
  mxfdec: Check eof_reached in mxf_read_local_tags()
  mxfdec: Check for NULL component
  mxfdec: Make sure mxf->nb_index_tables > 0 in mxf_packet_timestamps()
  mxfdec: Make sure x < index_table->nb_ptses
  build: Add missing directories to DIRS declarations.
  ...

Conflicts:
	doc/build_system.txt
	doc/fate.texi
	libavfilter/x86/yadif_template.c
	libavformat/mxfdec.c
	libavutil/Makefile
	tests/fate/audio.mak
	tests/fate/prores.mak
	tests/fate/screen.mak
	tests/fate/video.mak
	tests/ref/fate/bethsoft-vid
	tests/ref/fate/cscd
	tests/ref/fate/dfa4
	tests/ref/fate/nuv
	tests/ref/fate/vp8-sign-bias
	tests/ref/fate/wmv8-drm
	tests/ref/lavf/gxf

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-10 01:20:07 +01:00
Aneesh Dogra
ab9ae40152 bytestream: K&R formatting cosmetics
Signed-off-by: Diego Biurrun <diego@biurrun.de>
2012-02-09 11:37:14 +01:00
Michael Niedermayer
18d0a16fc9 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  swscale: make yuv2yuv1 use named registers.
  h264: mark h264_idct_add8_10 with number of XMM registers.
  swscale: fix V plane memory location in bilinear/unscaled RGB/YUYV case.
  vp8: always update next_framep[] before returning from decode_frame().
  avconv: estimate next_dts from framerate if it is set.
  avconv: better next_dts usage.
  avconv: rename InputStream.pts to last_dts.
  avconv: reduce overloading for InputStream.pts.
  avconv: rename InputStream.next_pts to next_dts.
  avconv: rework -t handling for encoding.
  avconv: set encoder timebase for subtitles.
  pva-demux test: add -vn
  swscale: K&R formatting cosmetics for SPARC code
  apedec: allow the user to set the maximum number of output samples per call
  apedec: do not unnecessarily zero output samples for mono frames
  apedec: allocate a single flat buffer for decoded samples
  apedec: use sizeof(field) instead of sizeof(type)
  swscale: split C output functions into separate file.
  swscale: Split C input functions into separate file.
  bytestream: Add bytestream2 writing API.

The avconv changes are due to massive regressions and bugs not merged yet.

Conflicts:
	ffmpeg.c
	libavcodec/vp8.c
	libswscale/swscale.c
	libswscale/x86/swscale_template.c
	tests/fate/demux.mak
	tests/ref/lavf/asf
	tests/ref/lavf/avi
	tests/ref/lavf/mkv
	tests/ref/lavf/mpg
	tests/ref/lavf/nut
	tests/ref/lavf/ogg
	tests/ref/lavf/rm
	tests/ref/lavf/ts
	tests/ref/seek/lavf_avi
	tests/ref/seek/lavf_mkv
	tests/ref/seek/lavf_rm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-02-08 05:53:35 +01:00
Aneesh Dogra
db7d45237a bytestream: Add bytestream2 writing API.
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-02-06 18:56:13 -05:00
Michael Niedermayer
4640da7e58 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  sgidec: Use bytestream2 functions to prevent buffer overreads.
  cosmetics: Move static and inline attributes to more standard places.
  configure: provide libavfilter/version.h header to get_version()
  swscale: change yuv2yuvX code to use cpuflag().
  libx264: Don't leave max_b_frames as -1 if the user didn't set it
  FATE: convert output to rgba for the targa tests which currently output pal8
  fate: add missing reference files for targa tests in 9c2f9b0e2
  FATE: enable the 2 remaining targa conformance suite tests
  targa: add support for rgb555 palette
  FATE: fix targa tests on big-endian systems

Conflicts:
	libavcodec/sgidec.c
	libavcodec/targa.c
	libswscale/x86/output.asm
	tests/fate/image.mak

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-15 01:16:54 +01:00
Aneesh Dogra
4cd0bdae9a sgidec: Use bytestream2 functions to prevent buffer overreads.
The patch also adds several bytestream macros to deal with native endian.

Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2012-01-14 12:35:53 -05:00
Michael Niedermayer
6a56f4e634 Merge remote-tracking branch 'qatar/master'
* qatar/master:
  flicvideo: fix invalid reads
  vorbis: Avoid some out-of-bounds reads
  vqf: add more known extensions
  cabac: remove unused function renorm_cabac_decoder
  h264: Only use symbols from the SVQ3 decoder under proper conditionals.
  add bytestream2_tell() and bytestream2_seek() functions
  parsers: initialize MpegEncContext.slice_context_count to 1
  spdifenc: use special alignment for DTS-HD length_code

Conflicts:
	libavcodec/flicvideo.c
	libavcodec/h264.c
	libavcodec/mpeg4video_parser.c
	libavcodec/vorbis.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-07 02:30:27 +01:00
Justin Ruggles
6e8bf6db48 add bytestream2_tell() and bytestream2_seek() functions 2012-01-05 23:36:36 -05:00
Michael Niedermayer
7f83db3124 Merge remote-tracking branch 'qatar/master'
* qatar/master: (46 commits)
  mtv: Make sure audio_subsegments is not 0
  v4l2: use V4L2_FMT_FLAG_EMULATED only if it is defined
  avconv: add symbolic names for -vsync parameters
  flvdec: Fix compiler warning for uninitialized variables
  rtsp: Fix compiler warning for uninitialized variable
  ulti: convert to new bytestream API.
  swscale: Use standard multiple inclusion guards in ppc/ header files.
  Place some START_TIMER invocations in separate blocks.
  v4l2: list available formats
  v4l2: set the proper codec_tag
  v4l2: refactor device_open
  v4l2: simplify away io_method
  v4l2: cosmetics
  v4l2: uniform and format options
  v4l2: do not force interlaced mode
  avio: exit early in fill_buffer without read_packet
  vc1dec: fix invalid memory access for small video dimensions
  rv34: fix invalid memory access for small video dimensions
  rv34: joint coefficient decoding and dequantization
  avplay: Don't call avio_set_interrupt_cb(NULL)
  ...

Conflicts:
	Changelog
	avconv.c
	doc/APIchanges
	doc/indevs.texi
	libavcodec/adxenc.c
	libavcodec/dnxhdenc.c
	libavcodec/h264.c
	libavdevice/v4l2.c
	libavformat/flvdec.c
	libavformat/mtv.c
	libswscale/utils.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-05 02:03:12 +01:00
Ronald S. Bultje
89d26797f5 ulti: convert to new bytestream API. 2012-01-04 10:57:37 -08:00
Michael Niedermayer
3be1a4ba9a Merge remote-tracking branch 'qatar/master'
* qatar/master:
  lavc: always align height by 32 pixel
  raw: add 10bit YUV definitions
  nut: support 10bit YUV
  mpegvideo_enc: separate declarations and statements
  oma: make header compile standalone
  vp3: Reorder some functions to fix VP3 build with Theora disabled.
  build: fix standalone compilation of ADX encoder
  build: fix standalone compilation of ADPCM decoders
  build: fix standalone compilation of mpc7/mpc8 decoders
  4xm: Use bytestream2 functions to prevent overreads
  bytestream: add a new set of bytestream functions with overread checking
  mpegts: Suppress invalid timebase warnings on DMB streams.
  mpegts: Fix typo in handling sections in the PMT.
  vc1dec: Use the right pointer type for the tmp pointer

Conflicts:
	libavcodec/4xm.c
	libavcodec/utils.c
	libavcodec/vc1dec.c
	libavcodec/vp3.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2011-12-21 03:40:53 +01:00
Aneesh Dogra
fd22616c59 bytestream: add a new set of bytestream functions with overread checking
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
2011-12-20 13:17:03 -05:00
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
Diego Biurrun
c60208e7a1 Directly #include some required headers.
Originally committed as revision 16780 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-25 19:11:10 +00:00
Diego Biurrun
6a5d31ac25 Fix build: Add intreadwrite.h and bswap.h #includes where necessary.
Originally committed as revision 16556 to svn://svn.ffmpeg.org/ffmpeg/trunk
2009-01-11 22:19:48 +00:00
Stefano Sabatini
987903826b Globally rename the header inclusion guard names.
Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.'  to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".

Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-08-31 07:39:47 +00:00
Diego Biurrun
245976da2a Use full path for #includes from another directory.
Originally committed as revision 13098 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-05-09 11:56:36 +00:00
Michael Niedermayer
7993df6527 consts
I have underestimated this a little, and these are just some ...

Originally committed as revision 11708 to svn://svn.ffmpeg.org/ffmpeg/trunk
2008-02-01 03:26:31 +00:00
Måns Rullgård
3c3f7ce15a whitespace cosmetics
Originally committed as revision 9524 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-07-07 20:50:29 +00:00
Måns Rullgård
a7b67850f4 add 64-bit bytestream read/write functions
Originally committed as revision 9523 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-07-07 20:50:27 +00:00
Måns Rullgård
99545457bf include all prerequisites in header files
Originally committed as revision 9344 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-06-16 22:59:13 +00:00
Panagiotis Issaris
91a2974ee9 Remove unneeded semicolon.
Originally committed as revision 9316 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-06-15 08:16:24 +00:00
Alex Beregszaszi
c6e3365c81 add little endian 24bit read/write
Originally committed as revision 8270 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-06 13:05:38 +00:00
Baptiste Coudurier
895c2c005e add bytestream_get/put_be24 functions
Originally committed as revision 8217 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-03-04 02:51:33 +00:00
Michael Niedermayer
7d4495dafe simplify and remove useless index in AV_W*
Originally committed as revision 7852 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-02-06 19:10:17 +00:00
Alex Beregszaszi
fead30d444 rename BE/LE_8/16/32 to AV_RL/B_8/16/32
Originally committed as revision 7587 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-01-19 22:12:59 +00:00
Måns Rullgård
849f10351d rename always_inline to av_always_inline and move to common.h
Originally committed as revision 7256 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-12-08 00:35:08 +00:00
Baptiste Coudurier
e68e5ab0cf add bytestream big endian 16/32 writing functions
Originally committed as revision 7200 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-12-01 14:01:50 +00:00
Baptiste Coudurier
93481fe5fe change gif muxer to simple gif encoder
Originally committed as revision 6874 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-11-02 23:13:34 +00:00
Baptiste Coudurier
06d392a7cc change gif demuxer to gif decoder
Originally committed as revision 6760 to svn://svn.ffmpeg.org/ffmpeg/trunk
2006-10-22 15:05:03 +00:00