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Quick tip to extract subtitles from mp4 with the tool MP4Box available on OSX/Linux
. In OSX, we use brew to install MP4Box.
When installed, type the next to get info from the video file:
MP4Box -info input.mp4
Track # 4 Info - TrackID 4 - TimeScale 1000
Media Duration 02:23:33.789 - Indicated Duration 02:23:33.789
Media Info: Language "Spanish; Castilian (spa)" - Type "sbtl:tx3g" - 204 samples
Unknown Text Stream
Size 1280 x 80 - Translation X=0 Y=455 - Layer -1
RFC6381 Codec Parameters: tx3g
Alternate Group ID 2
All samples are sync
Example of a subtitle's track
Now we look for the Track we want to extract (with the type sbtl:tx3g). If there are several, look for "samples" which are the lines that has the subtitle file. If the sample number are short, you are generally forced subtitles with important content as names, other languages ... Now we pass the ID of the track to the next instruction:
MP4Box -srt Input.mp4
MP4Box -srt 4 input.mp4 # Example
I've tried manage with my project PiKISS this week. I want to present it in the next Meet up and teach how you don't have to use the terminal for some tasks. I did not know that I would find such outdated scripts, so I've begun to review all of them one by one (and there are a few). While I still pecking code, I leave you with the best of the best in the Pi World this week. Are you ready?...
Hurry up!: For a limited time
With this practical guide, you'll discover how you can transform your Raspberry Pi into a powerful media center. Using Raspbmc (based on the XBMC distribution), you'll be shown how you can deploy and configure your own media center, including coverage of all the essentials from controlling your device with a TV remote or smartphone, to the creation and customization of your very own media library (including the conversion of any existing collection). You'll even be able to stream multimedia from your devices or directly from the Internet!
The next Wednesday, 14 September you have an appointment in the Meet up at Psykia Social Technology. I'll give you a talk about PiKISS used to automate the installation of software.
When I was working in a office, I thought of a system for monitoring and to know where
the hell my boss was. This hosted project on Github uses a Pi Zero to know a MAC localization. It use Arp to scan and locate IPs and the platform Initial state to monitoring data visually. As a programming language, Python.
Link: github.com > pi-sensor-free-presence-detector
Bernardo delivering the Raspberry Pi 3 to me
Yesterday we had a meet up with Bernardo Ronquillo who show us some tools for the Raspberry PI. We talked about his course Learning to build intelligent robots where you can build a modular robot based on ROS. On the way, I was lucky to win a Raspberry Pi 3.
Today is Friday and we have dozen of interesting articles that I would like to share with you. I have compiled some of them in the weekly section of Pi World!... Engage!