Tags » Audio/video

Creating primitive subtitle (SubRip/.srt) file from scratch

I had a video I wanted to add a few subtitles lines here and there, without much effort. I ran:

$ apt-cache search subtitle editor
aegisub - Advanced subtitle editor
aegisub-l10n - Aegisub language packages
gaupol - subtitle editor for text-based subtitle files
libsubtitleeditor-dev - subtitleeditor lib - development files
libsubtitleeditor0 - subtitleeditor lib - runtime files
subtitleeditor - Graphical subtitle editor with sound waves representation
python-aeidon - reading, writing and manipulating text-based subtitle files
gnome-subtitles - Subtitle editor for the GNOME Desktop environment… 315 more words

Creating an mp4 with black screen and silent audio (with ffmpeg)

Assuming you have a  black PNG image named blck.png, you can make it a mp4 video:

ffmpeg -loop 1 -i blck.png -t 900 -r 1 -c:v libx264 blck.mp4… 73 more words

Integrity commissioner to restore faith in city hall: Mayor

By Evan Matthews

Conspiracies and conflicts of interest have plagued Winnipeg’s City Hall for the better part of the last 10 years, experts agree, but will the City of Winnipeg’s newest position create a more open and honest municipal government? 1,230 more words


Concatenating mp4 videos (with ffmpeg)

mp4 cannot be concatenated directly. But fmpeg (and so avconv I guess) can by the way of intermediary mpeg transport streams.

Here’s a dirty bash script that does that assuming you want to concat files named like MYFILE-1.mp4 MYFILE-2.mp4. 96 more words


Samsung UN48JU6500 48" Class 4K UHD Smart LED TV, - Bundle With HDMI 1.4 Audio/Video Cable 6 Feet

With 4K UHD resolution you’ll enjoy a picture with 4X the detail of Full HD. Watch and play your way with the advanced Samsung Smart TV platform that lets you quickly and easily access your favorite content. 13 more words