Bug in aio-grab ?

  • Hi everybody


    i think there is a bug in aio-grab


    if you set A/V setting in the follow mode:


    Video Output: DVI
    Mode :1080i
    Refresh: 50Hz
    Display 4:3 content as : Pan&Scan
    Display >16:9 content as : Letterbox


    and you try to grab a video screenshot an error occour


    Code
    root@dm800:~# grab -v -r 720 -j 80
    AiO Dreambox Screengrabber v0.81
    
    
    Detected STB: Brcm7401
    Grabbing Video ...
    Bus error
    root@dm800:~#


    same problem with v0.81 and v0.83


    If you change Pan&Scan in Pillarbox, grab work fine


    any Idea?

  • probably too less memory, try it with a swapfile enabled

  • probably too less memory, try it with a swapfile enabled

    Hi Gutemine
    I found this problem on a dm800 PVR, i couldn't test on a 8000 or 7025 because i don't have a Box :smiling_face:
    I use Ghost git repo, and i found the problem on a pure CVS and on my image, i don't think is a memory problem, there was 50Mb free and 64Mb on swap during the test.
    Could you try to test on your dream?

    4 Mal editiert, zuletzt von Gianathem ()

  • I can not test it on my 7025 either, but the same Bus Error was reportet when people tested my screensaver dameon on 800s which is also based on the latest grab AiO code


    The problem was not reported on 8000s


    Ciao


    gutemine

  • Ciao,thank's for the report


    Now, we do wait DMM for a Patch :face_with_tongue:

  • Aio was written by Seddi and not DMM, so you are waiting in the wrong queue :smiling_face:

  • So just tried to reproduce the error here. I cant reproduce on my 8k, and I cant reproduce on my 800. But my 800 works with an older
    software version at the moment, didnt update for a long time :winking_face:


    Hmm ... "Bus Error" at this stage means we cant access the decoder memory, mostly its an alignment failure means the decoder chip doesnt
    report us the right memory address where the actual image is stored. So at this point there is nothing wrong inside the sourcecode. The address
    is always accessed the same way, so if there is a bug in the source it should not work with "pillarbox" as well. Maybe there is a bug inside the
    driver. So I will test again when I updated my 800 in the next days. Maybe I can reproduce the error there.

  • Hi seddi.


    The problem is present only if you set the box in this mode:


    Video Output: DVI
    Mode :1080i
    Refresh: 50Hz
    Display 4:3 content as : Pan&Scan
    Display >16:9 content as : Letterbox


    and you try to get a video screen-shot on a 4/3 channel.
    With HD channel and 16/9 channel no probelm.


    Bye

  • Was this buggy ever fixed? I am getting bus errors from time to time on my DM800 with AiO 0.82. I have a very recent CVS the DM800's flash. Switching TV channels seems to heal the issue for a while.


    Mamba

    __________________________________
    Dreambox 800/7020, 250 GB HDD, 100 Mbit Lan

  • It's the same with 0.83 taken from yesterday's CVS:


    root@dm800:/media/nas# ./grab
    AiO Dreambox Screengrabber v0.83


    Detected STB: Brcm7401
    Grabbing 32bit Framebuffer ...
    ... Framebuffer-Size: 1280 x 720
    Grabbing Video ...
    Bus error


    I was watching a 4:3 signal on my DM800.


    Mamba

    __________________________________
    Dreambox 800/7020, 250 GB HDD, 100 Mbit Lan