Not processing the whole video

[SamriddhiJain]

Is there any limit to the size of video to be processed? I'm using the scenedetect scenedetect --input GOPR1631.MP4 -d content -df 4 command and it seems like it is processing only 26 frames.
[PySceneDetect] Detecting scenes (content mode)... [PySceneDetect] Parsing video GOPR1631.MP4... [PySceneDetect] Video Resolution / Framerate: 1280 x 720 / 29.970 FPS [PySceneDetect] Subsampling Enabled (4x, Resolution = 320 x 180) Verify that the above parameters are correct (especially framerate, use --force-fps to correct if required). [PySceneDetect] Processing complete, found 0 scenes in video. [PySceneDetect] Processed 26 frames in 38.6 secs (avg. 0.7 FPS).

The video I'm using is of size 4GB and am pretty sure it quite a large number frames. It is working fine with videos of relatively small sizes (few MBs) whereas when used for big videos it is processing only 26 frames. Currently I have no clue why is it so, am I missing some parameter? Thanks!

[Breakthrough]

Hi @SamriddhiJain interesting, the command you're using looks fine to me, so it should certainly be processing more than just 26 frames.

Could you give me a bit more details about your system? Are you on a 32-bit or 64-bit OS?

[SamriddhiJain]

@Breakthrough I'm working on ubuntu 14.04 64 bit. I'm facing this issue while using a 4GB file, whereas when I sliced first 2 minutes of the video and used it, then it is processing all the frames correctly.

[Breakthrough]

@SamriddhiJain interesting, I would recommend you try wrapping it in a different container. My suggestion is to use mkvmerge (part of mkvtoolnix) to "convert" your video MP4 to MKV, and see if that solves the issue.

Sometimes ffmpeg/libav can be picky when it comes to improper MP4 headers, so if that doesn't work, you may have to split your video up into smaller chunks manually, or re-encode the original source file if that's feasible. Let me know how you make out, and if you're comfortable, feel free to upload a sample video that you can't process, that I can have a deeper look at.

[Breakthrough]

Closing issue until further information is provided. Feel free to add a comment to this issue at any time, or open a new one.