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• Decrypt or decode ultraviolet videos

  29 mai 2017, par argetlam5

  I was on Vudu because I have some Ultraviolet movies in my collection and I saw you could download them from their site for offline usage.

  The files on the computer from that download are an h264-2000.mp4 file and aac-256.mp4 file (along with a json subtitle file and some other meta data stuff). When I try to run them individually however nothing happens and when I try to convert to m4v with ffmpeg it fails.

  • Are these files encrypted so that only their video player can play it ?
  • Is there a way to combine all of these files that I’m just not aware of ?

  Vudu uses Adobe Air if that gives you any more information.

  Also, if it is encrypted, does that mean it’s illegal for me to try to be messing with these ? I thought since I bought the movie it would be fine to try. I know I could rip the movie with something like handbrake but the quality from Vudu & other Ultraviolet sites is really nice and my computer doesn’t have a bluray reader to try and rip from a bluray.

• Read streamlink m3u8 file using ffmpeg

  6 octobre 2020, par pi_

  I am using earthcam links for data collection purposes. My implementation works perfectly fine on local but gives me an OpenCV: image broken error on CentOS 7 system. As ffmpeg is used in the background for OpenCV, I want to directly use ffmpeg to read m3u8 file retrieved from streamlink in the following way.

  


  streams = streamlink.streams(stream_link)
q = list(streams.keys())[0]
stream = streams['%s' % q]
video_cap = cv2.VideoCapture(stream.url) ----> # Want to change this line to ffmpeg


  


  An example link that I am using in my problem is - Nyc_5th_Street

  


  Also, In addition, I just need the first frame of the m3u8 file every time I loop it in.

  


• Enabling mp4/mpeg4/avc playback in Qt 5.4 webengine on Ubuntu x64

  14 janvier 2016, par Thomas233

  i installed Qt 5.4.1 x64 on LUbuntu and created an app which uses the new QtWebEngine.

  I`m trying to display a html5 page with that component which is using the tag.
  All works fine except if I try to playback a mp4 video. The video area remains black. It works if I use other video types like webm/ogg as source.

  I know this is due to license restrictions, so that mp4 is deactivated by default in Ubuntu/Linux for Qt.

  What is needed in Qt to activate it to allow mp4 playback and on what do I have pay attention in case of license terms (I read that statically linking the library is allowed ?) ?

  I`ve already tried to copy over the x64 distribution of libffmpegsuo.so which is included in Chrome (2,2Mb) over to the Qt directory to /plugins/webengine/ and replaced that one that was already there (1,1 Mb) but it had no effect.
  In Chrome playback works fine btw.

  If you need more details like paths etc. please tell me.

  Thanks !