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0 votes
0 answers
19 views

How to create a video encoding ladder for any aspect ratio?

For a given video uploaded by a user, I need to create three versions of it to cover standard definition (SD), high definition (HD), full high definition (FHD), and ultra high definition (UHD e.g. 4K)....
0 votes
1 answer
560 views

ffmpeg - cut without reencoding and strange behaviour: application provided duration is out of range for mov/mp4 format

In Ubuntu 18.04 I quite often used the following command for trimming part of the video without re encoding (which means without any quality loss). ffmpeg -ss 00:06:00 -i DSCF5984.MOV -t 00:07:00 -c ...
0 votes
1 answer
349 views

How to convert home movie DVDs to .mpeg files?

My wife brought me a box of DVDs with her home movies from her life before me. I would like to store the contents permanently on our Linux home server alongside 100,000 jpg files and some more recent ...
61 votes
1 answer
138k views

Downloading m3u8 videos [closed]

I am trying to download video from a .m3u8 livestream video format. How can I download m3u8 videos using software on my personal computer such as ffmpeg, youtube-dl, VLC, etc? M3U is a computer file ...
0 votes
0 answers
1k views

Ffmpeg hardware acceleration unsupported formats betwen transpose and auto_scaler_0

I am trying to develop a transoding service which makes use of nvidia hardware acceleration capabilities ( The gpu used in this process is a Tesla T4); I want to generate a mpeg-dash playlist for my ...
0 votes
1 answer
55 views

How to autocaption a video?

I want to play videos and autocation them. I have some training videos and I want to see speech to text like what we have in youtube.(to show text under the video) I don’t want to upload files ...
0 votes
2 answers
418 views

Streaming with Canon XA10, Black Magic Intensity Shuttle, and StreamLabs OBS on Windows 10

I am attempting to Live Stream with my Canon XA10 using a BlackMagic Intensity Shuttle and StreamLabs OBS. I can't seem to get a picture in either the BM Desktop Video, BM Media Express, or OBS. I ...
3 votes
3 answers
2k views

Stream video from a computer to a tablet

I would like to watch presentations and college videos I have on my computer, from my tablet. There are almost a hundred of GB in videos, so I would like to watch them in streaming from my computer. ...
1 vote
0 answers
716 views

FFmpeg HLS single file playback is broken when encryption enabled

HLS files generated with encryption enabled and the single segment (byte range) option result in videos that are unplayable. The same videos play without issue when encryption is not utilized. Here ...
1 vote
1 answer
2k views

ffmpeg to fix video playback speed without re-encoding?

What's the best way to fix incorrect timestamps on a network camera using ffmpeg? Running the camera in h264 mode with a 1fps correctly produces duration=1.000: ffmpeg -hide_banner -rtsp_transport ...
1 vote
1 answer
1k views

ffmpeg - waveform.png: Invalid argument

I'm trying to use ffmpeg on Synology NAS with DSM 6.2 to create waveform of my mp4 files. ffmpeg -i aaa.mp4 -lavfi showwavespic=split_channels=1:s=1024x800 waveform.png [NULL @ 0x24271e0] Unable to ...
0 votes
1 answer
584 views

How can I create a stream of my screen on a Windows computer for another device on my network?

I want to view what is seen on my Windows laptop screen on my tv, which is connected to a device running enigma 2, "screen mirroring". There are no software or plugins that will work on the device for ...
1 vote
0 answers
4k views

How can I increase volume for HD mp4 files with ffmpeg?

I am converting videos using FFmpeg on Linux. Videos are 1080p at first and I convert 1080p to h264 720p and 360p. Also if videos are 360p I`m converting them to h264 360p. The problem is when ...
3 votes
1 answer
2k views

How to efficiently create a best-palette gif from a video portion straight from the web

I've been using for some time this couple of commands to convert a video segment to an animated gif, having ffmpeg calculate the best palette for it: ffmpeg -ss $START -i $IN_FILE -t $LENGTH -vf "fps=...
4 votes
1 answer
3k views

How to split video files upon detected change in resolution? (ie. recorded streams containing multiple widths)

I have many video files (flv/mp4) that change resolution mid-stream (720p/1080p/640). I would like to use something like ffmpeg to automatically detect the change in resolution and split the videos ...

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