Media ignored, logs 'codec DUMMY is not supported'

I've noticed that Resolve silently ignores certain input media (mts) when importing into the media page. They just don't show up as thumbnails, and if I try and try them from explorer into the timelines, they also are ignored, shown as the circle-with-line through it. This is on Win10, Studio 17 beta.

When I dug deeper, I noticed these were being logged in ResolveDebug.txt with one common message substring: "codec DUMMY is not supported". The files play just in various other tools, and ffmpeg can read them...

I *believe* what all these file share in common is that I at one points used ffmpeg to trim them many years ago... I do have a workaround which is to just remux them into another container such as mp4, i.e.:

ffmpeg -i 20160602-101024.m2ts -c copy 20160602-101024.mp4

...but this is somewhat cumbersome because there are hundreds, and one has to rely on auditing Resolve logs to find the bad ones..

So TWO requests:

1) BMD team, can you provide some signal in the Resolve UI that media is being ignored? And a way to list them, maybe by opening a log viewer window? Or just show the thumbnail but 'media offline'.

2) Can the media reader be adjusted perhaps to read these? I can provide sample files, if this isn't already a known issue.

Here's detail from ResolveDebug.txt:

Code: Select all

[0x000030ec] | IO                   | ERROR | 2021-01-12 03:55:29,765 | Failed to open video file <S:\xx\Video\2016\20160602-101024.m2ts> for decoding, error: <File does not exist, or file format is not recognizable.>

[0x000030ec] | IO                   | ERROR | 2021-01-12 03:55:29,765 | Failed to read video track information from file <20160602-101024.m2ts> in S:\xx\Video\2016, track 0: codec DUMMY is not supported

Here what ffmpeg thinks:

Code: Select all

C:\Users\Ken>ffmpeg -i 20160602-101024.m2ts
ffmpeg version N-90065-g8a8d0b319a Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7.2.0 (GCC)
... (removed configure line)
Input #0, mpegts, from '20160602-101024.m2ts':
  Duration: 00:05:00.03, start: 1.400000, bitrate: 29334 kb/s
  Program 1
    Metadata:
      service_name    : Service01
      service_provider: FFmpeg
    Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
    Stream #0:1[0x101]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 192 kb/s


Thanks! -Ken

TWO requests:

There is a separate forum for Feature Requests.

viewforum.php?f=33

Best practice is to search first, to see if someone already asked. If not, post one idea per thread with a very brief description of the idea in the thread's title.