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Aman Gupta fab3418cb9 avcodec/mediacodecdec: fix SEGV on modern nvidia decoders 
This code came originally from gstreamer, where it was added in [1]
as a work-around for the Tegra 3. (The alignment was changed in [2]
as a response to [3], from 32-bit to 16-bit).

gstreamer only used this workaround in the case where the decoder
didn't return a slice-height property, but when the code was copied
into avcodec the conditional got lost. This commit restores the guard
and prefers the slice-height from the decoder when it is available.

This fixes segfaults decoding 1920x1080 h264 and mpeg2 videos on the
NVidia SHIELD after upgrading to Android Oreo.

[1] a870e6a5c3
[2] 21ff3ae0b0
[3] https://bugzilla.gnome.org/show_bug.cgi?id=748867

Signed-off-by: Aman Gupta <aman@tmm1.net>
(cherry picked from commit 476fd6ba3a)
2018-08-03 11:07:31 -07:00
compat compat: remove in-tree NVidia headers 2018-02-27 16:22:12 +01:00
doc Update for 4.0.2 2018-07-18 14:04:51 +02:00
ffbuild Merge commit '17b6c7efb4' 2017-11-12 01:02:02 -03:00
fftools ffmpeg: fix -stream_loop with multiple inputs 2018-07-08 12:52:49 +02:00
libavcodec avcodec/mediacodecdec: fix SEGV on modern nvidia decoders 2018-08-03 11:07:31 -07:00
libavdevice avdevice/decklink_dec: unref packets on avpacket_queue_put error 2018-05-01 21:22:33 +02:00
libavfilter lavf/qsv: clone the frame which may be managed by framework 2018-04-23 22:56:18 +01:00
libavformat avformat/librtmp: fix returning EOF from Read/Write 2018-07-28 01:11:30 +02:00
libavresample avresample: remove deprecated attribute from the AVAudioResampleContext struct 2018-01-09 10:56:53 -03:00
libavutil avutil/common: Fix undefined behavior in av_clip_uintp2_c() 2018-06-15 22:31:13 +02:00
libpostproc Bump minor versions for branching release/4.0 2018-04-16 12:35:12 +02:00
libswresample swresample/arm: rename labels to fix xcode build error 2018-07-16 19:02:12 +02:00
libswscale Bump minor versions for branching release/4.0 2018-04-16 12:35:12 +02:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests avcodec/xwddec: fix palette alpha 2018-05-16 22:50:18 +02:00
tools lav*,tests: remove several register_all calls 2018-04-02 03:26:22 +01:00
.gitattributes fate: add SCC test 2017-01-27 17:06:42 +01:00
.gitignore Remove the ffserver program 2018-01-06 18:31:37 +00:00
.travis.yml Merge commit '4809781586' 2017-10-28 15:08:31 -03:00
Changelog Update for 4.0.2 2018-07-18 14:04:51 +02:00
configure configure: The eac3_core bitstream filter needs the ac3 parser. 2018-06-13 12:04:12 +02:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md
LICENSE.md Merge commit '4fef648d10' 2017-03-15 22:07:47 +01:00
MAINTAINERS MAINTAINERS: add myself to documentation section 2018-04-13 09:40:27 -08:00
Makefile Revert "lavd: add new API for iterating input and output devices" 2018-03-31 23:26:31 +01:00
README.md Remove the ffserver program 2018-01-06 18:31:37 +00:00
RELEASE Update for 4.0.2 2018-07-18 14:04:51 +02:00
RELEASE_NOTES add release notes based on release 3.4 2018-04-16 12:41:03 +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.
  • 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.