May 2011 - ffmpeg-user - lists.ffmpeg.org

decoding subtitles
by Kirill Gavrilov 01 May '11

01 May '11

Hi, this moment I'm trying to understand how should I parse subtitles using FFmpeg libraries. I call avcodec_decode_subtitle() and investigate results in AVSubtitleRectstructure. Each time I got SUBTITLE_ASS type (even for STR subtitles), .text field is empty and .ass field filled as "ASS/SSA compatible event line" like this: Dialogue: 0,0:37:01.26,0:37:03.16,Default,,0000,0000,0000,,He couldn't have gone far. I found some basic description for ASS format but via AVSubtitleRect I got only Dialogue events and no any Format description. So I can not retrieve even text because Text field position is unknown for me (it should be last but delimiter , can be used in text). Could someone explain me how should I retrieve Format for ASS subtitles given by FFmpeg? Bitmap subtitles currently out-of-interest for me. Thanks! ----------------------------------------------- Kirill Gavrilov, Software designer.

2 1

Re: [FFmpeg-user] Copyright issues iFFmpeg
by Johannes Frotscher 01 May '11

01 May '11

I do not have a problem, it is not my development work of decades getting sold out for nothing, I do not care much just as to inform you what illegal practices are going on. A mere GUI for a solid program it is, precisely the point, you cannot sell software which uses the main functionality of another software and effectively braking the license agreement and copyright originator. It is therefore an infringement and making money of it, the GNU and EEF foundations would not be very pleased with it. I thought FFmpeg was OpenSource, but what do I care, do what you want, I have no problem. Its yours to do what ever you want with it. Bye

3 3

Re: [FFmpeg-user] Copyright issues iFFmpeg
by Johannes Frotscher 01 May '11

01 May '11

And I just found on the ffmpeg website itself lol on the big heading of "Legal": http://www.ffmpeg.org/legal.html "Q: Is it perfectly alright to incorporate the whole FFmpeg core into my own commercial product? A: You might have a problem here. There have been cases where companies have used FFmpeg in their products. These companies found out that once you start trying to make money from patented technologies, the owners of the patents will come after their licensing fees. Notably, MPEG LA is vigilant and diligent about collecting for MPEG-related technologies."

1 0

Copyright issues iFFmpeg
by Johannes Frotscher 01 May '11

01 May '11

Hi there, I was just checking whether the team is aware that someone is corrupting the GPL and selling this software for profit of $10, $15 $23.32: http://www.macupdate.com/app/mac/35846/iffmpeg http://www.macupdate.com/app/mac/8988/ffmpegx http://www.macupdate.com/app/mac/21888/visualhub According to copyright law, if a software uses another backend software, and it makes up the main part of the software in order to function, that software cannot be incorporated without prior consent to the originators of the backend license agreement. They have been doing that for quite sometime, some as far as almost 10 years. And I don't understand why nothing happened over these years. Plus what is the Hall of Shame for on the ffmpeg website? Yours Jack

2 1