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Rostislav Pehlivanov a94cb36ab2 vc2enc_dwt: pad the temporary buffer by the slice size

Since non-Haar wavelets need to look into pixels outside the frame, we
need to pad the buffer. The old factor of two seemed to be a workaround
that fact and only padded to the left and bottom. This correctly pads
by the slice size and as such reduces memory usage and potential
exploits.
Reported by Liu Bingchang.

Ideally, there should be no temporary buffer but the encoder is designed
to deinterleave the coefficients into the classical wavelet structure
with the lower frequency values in the top left corner.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
(cherry picked from commit 3228ac730c11eca49d5680d5550128e397061c85)

2017-11-09 02:10:56 +00:00

compat

compat/cuda/ptx2c: strip CR from each line

2017-08-30 11:20:34 +02:00

doc

Update versions for 3.4 release

2017-10-15 02:30:15 +02:00

ffbuild

build: prevent SDL2 from polluting global cflags and extralibs

2017-10-09 21:41:11 -03:00

fftools

ffmpeg.c: Fallback to duration_dts, when duration_pts can't be determined.

2017-10-15 01:43:23 +02:00

libavcodec

vc2enc_dwt: pad the temporary buffer by the slice size

2017-11-09 02:10:56 +00:00

libavdevice

Bump minor versions for branching 3.4

2017-10-11 01:23:47 +02:00

libavfilter

Bump minor versions for branching 3.4

2017-10-11 01:23:47 +02:00

libavformat

Bump minor versions for branching 3.4

2017-10-11 01:23:47 +02:00

libavresample

Bump minor versions for branching 3.4

2017-10-11 01:23:47 +02:00

libavutil

lavu/arm: Check for have_vfp_vm instead of !have_vfpv3 for float_dsp_vfp

2017-10-23 13:31:37 +02:00

libpostproc

Bump minor versions for branching 3.4

2017-10-11 01:23:47 +02:00

libswresample

Bump minor versions for branching 3.4

2017-10-11 01:23:47 +02:00

libswscale

Bump minor versions for branching 3.4

2017-10-11 01:23:47 +02:00

presets

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tests

fate: update fate-api reference files after 71e2ec017a

2017-10-09 22:46:07 -03:00

tools

tools/ismindex: remove unused header

2017-10-01 18:19:14 -03:00

.gitattributes

fate: add SCC test

2017-01-27 17:06:42 +01:00

.gitignore

build: add support for building .cu files via nvcc

2017-05-15 11:46:50 +02:00

.travis.yml

build: Prefer NASM assembler over YASM

2017-06-21 17:00:30 -03:00

Changelog

Update versions for 3.4 release

2017-10-15 02:30:15 +02:00

configure

configure: force erroring out in check_disable_warning() if an option doesn't exists

2017-10-13 20:57:38 -03:00

CONTRIBUTING.md

Add CONTRIBUTING.md

2016-09-18 10:02:13 +01:00

COPYING.GPLv2

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COPYING.GPLv3

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COPYING.LGPLv2.1

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COPYING.LGPLv3

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CREDITS

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INSTALL.md

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LICENSE.md

Merge commit '4fef648d10bf3bcfd4b8fa5755c1128966a2427c'

2017-03-15 22:07:47 +01:00

MAINTAINERS

MAINTAINERS: change the decklink maintainer to myself

2017-10-04 22:44:42 +02:00

Makefile

Makefile: generate stripped CLI tools directly instead of copying unstripped ones first

2017-10-10 19:45:14 +02:00

README.md

Add CONTRIBUTING.md

2016-09-18 10:02:13 +01:00

RELEASE

Update versions for 3.4 release

2017-10-15 02:30:15 +02:00

RELEASE_NOTES

add release notes based on release 3.3

2017-10-11 03:11:33 +02:00

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

libavcodec provides implementation of a wider range of codecs.
libavformat implements streaming protocols, container formats and basic I/O access.
libavutil includes hashers, decompressors and miscellaneous utility functions.
libavfilter provides a mean to alter decoded Audio and Video through chain of filters.
libavdevice provides an abstraction to access capture and playback devices.
libswresample implements audio mixing and resampling routines.
libswscale implements color conversion and scaling routines.

Tools

ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
ffplay is a minimalistic multimedia player.
ffprobe is a simple analysis tool to inspect multimedia content.
ffserver is a multimedia streaming server for live broadcasts.
Additional small tools such as aviocat, ismindex and qt-faststart.

Documentation

The offline documentation is available in the doc/ directory.

The online documentation is available in the main website and in the wiki.

Examples

Coding examples are available in the doc/examples directory.

License

FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.

Contributing

Patches should be submitted to the ffmpeg-devel mailing list using git format-patch or git send-email. Github pull requests should be avoided because they are not part of our review process and will be ignored.

Languages

C 90.4%

Assembly 7.7%

Makefile 1.3%

C++ 0.2%

Objective-C 0.2%

Other 0.1%