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  1. Hi!

    I'm an experienced user who would appreciate some insight into what's going on with this baffling MP4 file that I've been having considerable difficulty working with. It plays in (Windows) VLC, but I need to edit it. However, although the edit process seems to work correct (and produces no error messages), after rendering the results (Smart-rendered or otherwise), the output is catastrophically bad! For one thing, although the source file is 11.4 G, the resulting file can be as small as about 250 M and usually only the audio will play.


    I've tried several video tools to try to process it: TMPGenc Video Mastering Works 7, TMPGenc MPEG Smart Renderer 5, Handbrake, WonderFox Soft HD Video Converter Factory Pro, VSDC Video Converter, VSDC Pro Video Edtor, and I've also tried using VLC to convert/save the file. None of them have worked, but none of them have produced any error messages.


    What the heck is going on with this file?


    I've uploaded the original 11.3 GB file here: https://gofile.io/d/3MlQcO


    It won't play from there; you'll have to download it, I'm afraid. I would have preferred to upload only a portion of that file, but since all attempts at editing it down have failed, I had no choice but to upload the whole thing. One of the main edits I want to make on this file is to remove the handful of "blank" regions that would have held commercials if the video were to be broadcast, but that's not the only change I wish to make.


    I would be very grateful for any assistance you can provide!
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  2. Try posting a MediaInfo report (View -> Text, Ctrl+A to copy, then paste into a post), That may provide some hints. Do the same for one of your failed conversions too.
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  3. Allgemein
    Vollständiger Name : Problem File - MST3K - Attack of The The Eye Creatures.mp4
    Format : MPEG-4
    Format-Profil : Base Media
    Codec-ID : isom (isom/iso2/avc1/mp41)
    Dateigröße : 10,5 GiB
    Dauer : 1 h 35 min
    Modus der Gesamtbitrate : variabel
    Gesamte Bitrate : 15,7 Mb/s
    Kodierendes Programm : Lavf58.20.100

    Video
    ID : 1
    Format : AVC
    Format/Info : Advanced Video Codec
    Format-Profil : High@L3.1
    Format-Einstellungen : CABAC / 4 Ref Frames
    Format-Einstellungen für CABAC : Ja
    Format-Einstellungen für RefFrames : 4 frames
    Codec-ID : avc1
    Codec-ID/Info : Advanced Video Coding
    Dauer : 1 h 35 min
    Source duration : 2s 232 ms
    Bitrate : 15,5 Mb/s
    Breite : 712 Pixel
    Höhe : 472 Pixel
    Bildseitenverhältnis : 4:3
    Modus der Bildwiederholungsrate : konstant
    Bildwiederholungsrate : 59,940 FPS
    Color space : YUV
    Chroma subsampling : 4:2:0
    Bit depth : 8 bits
    Scantyp : progressiv
    Bits/(Pixel*Frame) : 0.768
    Stream-Größe : 10,4 GiB (98%)
    Source stream size : 10,4 GiB (98%)
    verwendete Encoder-Bibliothek : x264 core 155 r2917 0a84d98
    Kodierungseinstellungen : cabac=1 / ref=2 / deblock=1:0:0 / analyse=0x3:0x113 / me=hex / subme=6 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-2 / threads=3 / lookahead_threads=1 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=300 / keyint_min=30 / scenecut=40 / intra_refresh=0 / rc_lookahead=30 / rc=crf / mbtree=1 / crf=5.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / ip_ratio=1.40 / aq=1:1.00
    Color range : Limited
    Transfer characteristics : BT.601
    Matrix coefficients : BT.601
    mdhd_Duration : 5754432
    Codec configuration box : avcC

    Audio
    ID : 2
    Format : AAC LC
    Format/Info : Advanced Audio Codec Low Complexity
    Codec-ID : mp4a-40-2
    Dauer : 1 h 35 min
    Bitraten-Modus : variabel
    Bitrate : 256 kb/s
    maximale Bitrate : 384 kb/s
    Kanäle : 2 Kanäle
    Channel layout : L R
    Samplingrate : 48,0 kHz
    Bildwiederholungsrate : 46,875 FPS (1024 SPF)
    Compression mode : Lossy
    Stream-Größe : 176 MiB (2%)
    Default : Ja
    Alternate group : 1
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  4. Might be a problem with the headers, try whether it helps to simply remux the file to .mkv using MKVToolnix before feeding it to other applications.
    users currently on my ignore list: deadrats, Stears555
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  5. Try to load your video into my clever FFmpeg-GUI; maybe you can process it with it, or cut a 10 sec sample and post this here.
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  6. I downloaded the entire video, then used Handbrake to recompress it. There were no problems.

    Code:
    General
    Complete name                            : problemfile.mp4
    Format                                   : MPEG-4
    Format profile                           : Base Media / Version 2
    Codec ID                                 : mp42 (isom/iso2/avc1/mp41)
    File size                                : 563 MiB
    Duration                                 : 1 h 35 min
    Overall bit rate                         : 820 kb/s
    Encoded date                             : UTC 2020-11-17 19:15:52
    Tagged date                              : UTC 2020-11-17 19:15:52
    Writing application                      : HandBrake 1.2.2 2019022300
    
    Video
    ID                                       : 1
    Format                                   : AVC
    Format/Info                              : Advanced Video Codec
    Format profile                           : Main@L4
    Format settings                          : CABAC / 4 Ref Frames
    Format settings, CABAC                   : Yes
    Format settings, Reference frames        : 4 frames
    Codec ID                                 : avc1
    Codec ID/Info                            : Advanced Video Coding
    Duration                                 : 1 h 35 min
    Bit rate                                 : 642 kb/s
    Width                                    : 624 pixels
    Height                                   : 472 pixels
    Display aspect ratio                     : 4:3
    Frame rate mode                          : Variable
    Frame rate                               : 59.940 (60000/1001) FPS
    Minimum frame rate                       : 59.920 FPS
    Maximum frame rate                       : 59.960 FPS
    Color space                              : YUV
    Chroma subsampling                       : 4:2:0
    Bit depth                                : 8 bits
    Scan type                                : Progressive
    Bits/(Pixel*Frame)                       : 0.036
    Stream size                              : 441 MiB (78%)
    Writing library                          : x264 core 157 r2935 545de2f
    Encoding settings                        : cabac=1 / ref=1 / deblock=1:0:0 / analyse=0x1:0x111 / me=hex / subme=2 / psy=1 / psy_rd=1.00:0.00 / mixed_ref=0 / me_range=16 / chroma_me=1 / trellis=0 / 8x8dct=0 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=0 / threads=15 / lookahead_threads=3 / sliced_threads=0 / nr=0 / decimate=1 / interlaced=0 / bluray_compat=0 / constrained_intra=0 / bframes=3 / b_pyramid=2 / b_adapt=1 / b_bias=0 / direct=1 / weightb=1 / open_gop=0 / weightp=1 / keyint=600 / keyint_min=60 / scenecut=40 / intra_refresh=0 / rc_lookahead=10 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=20000 / vbv_bufsize=25000 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
    Encoded date                             : UTC 2020-11-17 19:15:52
    Tagged date                              : UTC 2020-11-17 19:15:52
    Color range                              : Limited
    Color primaries                          : BT.601 NTSC
    Transfer characteristics                 : BT.709
    Matrix coefficients                      : BT.601
    Codec configuration box                  : avcC
    
    Audio
    ID                                       : 2
    Format                                   : AAC LC
    Format/Info                              : Advanced Audio Codec Low Complexity
    Codec ID                                 : mp4a-40-2
    Duration                                 : 1 h 35 min
    Bit rate mode                            : Constant
    Bit rate                                 : 161 kb/s
    Channel(s)                               : 2 channels
    Channel layout                           : L R
    Sampling rate                            : 48.0 kHz
    Frame rate                               : 46.875 FPS (1024 SPF)
    Compression mode                         : Lossy
    Stream size                              : 110 MiB (20%)
    Title                                    : Stereo
    Default                                  : Yes
    Alternate group                          : 1
    Encoded date                             : UTC 2020-11-17 19:15:52
    Tagged date                              : UTC 2020-11-17 19:15:52
    I also used AviSynth to read the video+audio and compressed with ffmpeg. There were no problems there either.
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