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99147312ce
Get rid of pr dependency and write the columns strictly alphabetical without page size considerations (POSIX specifies 66 lines as default). Setting the page size via pr's -l option was considered, but as there is issue #5680 which wants to avoid pr mainly because it's not in busybox, we chose to replace pr instead. Before pr would attempt to write pages, thus if a page boundary was reached, the output looked confusing as one couldn't see there was a new page and the alphabetical order was disrupted when scanning down one of the columns. This change is based on a shell implementation submitted before by Yejun. Possible differences to the current version using pr: 1. pr implementations should truncate items to not overflow columns; depending on how it's done not truncating shall be better IMHO. 2. pr implementations might balance columns differently; we use minimum number of lines and might end up not using all columns or might have lesser entries in the last column(s) 3. we use spaces only for padding the columns; at least the GNU pr version on my system also by default stuffs in tabs in addition to a single space in between columns. I don't see that this behaviour is demanded by POSIX, though I might be very well overlooking things. Anyway for our use case I can't see a need for having the additional tabs, or why it would be better compared to padding with spaces only. Fixes output for sizes with width < column width, too. Fixes remaining part of ticket #5680 Contributor: Guo, Yejun <yejun.guo@intel.com>
FFmpeg README
FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides a mean to alter decoded Audio and Video through chain of filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements 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,ismindexandqt-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.