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  1. Terminus

    Joined:
    Jun 6, 2016
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    I had to post the obligatory 'point of interest' video with music and flash video hosted on youtube. I really need about 5-6 more secondary batteries and more day time. So far linux has been the most important tool for my work with the DJI 4. I have been using arm-based computers to work with the micro sd cards and ubuntu with ffmpeg to mix the video and audio. I use transmageddon to convert MOV to flv. (flash video)



    I'd like to say a lot more but I am much too new to really say anything of import. I do know that I corrupted the FAT32 filesystem on a 32GB card recently and had to save it under linux. I was using a mv(1) operation and from now on I will use a cp(1) operation instead.

    2016-06-12

    I had a filesystem error when trying to copy some video off the micro sd card to an ssd in one of the Cubie board servers here. When trying to get a directory listing of the micro sd card it also appeared to be empty after the initial error. I thought I had lost everything!

    My card was on sdd.

    # beginning of example
    root@master:/master/tmp/point_of_interest# dosfsck -w -r -l -a -v -t /dev/sdd1
    dosfsck 3.0.13 (30 Jun 2012)
    dosfsck 3.0.13, 30 Jun 2012, FAT32, LFN
    Checking we can access the last sector of the filesystem
    Boot sector contents:
    System ID "MSWIN4.1"
    Media byte 0xf8 (hard disk)
    512 bytes per logical sector
    32768 bytes per cluster
    1124 reserved sectors
    First FAT starts at byte 575488 (sector 1124)
    2 FATs, 32 bit entries
    3906560 bytes per FAT (= 7630 sectors)
    Root directory start at cluster 2 (arbitrary size)
    Data area starts at byte 8388608 (sector 16384)
    976512 data clusters (31998345216 bytes)
    63 sectors/track, 255 heads
    8192 hidden sectors
    62513152 sectors total

    Checking file /
    Checking file /DCIM
    Checking file /MISC
    Checking file /DCIM/.
    Checking file /DCIM/..
    Checking file /DCIM/100MEDIA
    Checking file /DCIM/100MEDIA/.
    Checking file /DCIM/100MEDIA/..
    Checking file /DCIM/100MEDIA/DJI_0001.MOV
    Checking file /DCIM/100MEDIA/DJI_0002.MOV
    Checking file /DCIM/100MEDIA/DJI_0003.JPG
    Checking file /MISC/.
    Checking file /MISC/..
    Checking file /MISC/IDX
    Checking file /MISC/THM
    Checking file /MISC/LOG
    Checking file /MISC/XCODE
    Checking file /MISC/wifi.conf (WIFI~1.CON)
    Checking file /MISC/IDX/.
    Checking file /MISC/IDX/..
    Checking file /MISC/IDX/idx00 (IDX00)
    Checking file /MISC/IDX/idx01 (IDX01)
    /MISC/IDX/idx00
    File size is 267275 bytes, cluster chain length is > 294912 bytes.
    Truncating file to 267275 bytes.
    /MISC/IDX/idx01
    File size is 267195 bytes, cluster chain length is > 294912 bytes.
    Truncating file to 267195 bytes.
    Checking file /MISC/THM/.
    Checking file /MISC/THM/..
    Checking file /MISC/THM/100
    Checking file /MISC/THM/100/.
    Checking file /MISC/THM/100/..
    Checking file /MISC/THM/100/DJI_0001.THM
    Checking file /MISC/THM/100/DJI_0002.THM
    Checking file /MISC/LOG/.
    Checking file /MISC/LOG/..
    Checking file /MISC/XCODE/.
    Checking file /MISC/XCODE/..
    Checking for bad clusters.

    Reclaiming unconnected clusters.
    Checking free cluster summary.
    Free cluster summary uninitialized (should be 826106)
    Auto-setting.
    Performing changes.
    /dev/sdd1: 16 files, 150406/976512 clusters
    root@master:/master/tmp/point_of_interest#

    # end of example
     
  2. DroneDestination

    Joined:
    Jan 15, 2016
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    Why is the video so pixelated, even when at 4K?? The quality is terrible
     
    Santiego likes this.
  3. Terminus

    Joined:
    Jun 6, 2016
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    That is a low resolution flash video. I don't really need the video to be high resolution for that demonstration.
     
  4. Terminus

    Joined:
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    Here is a higher-resolution video. The source took over 6-hours to upload.