Questions tagged [concatenation]

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Concatenate H.264 raw but basic streams without reencoding or quality loss

How does one go about concatenating several H.264 raw streams into one without reencoding or quality loss? The streams lacked any advanced features and represented contuous recording. There is no ...
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17 views

How to put a trailer clip in the middle of the main video with FFMPEG?

I have two videos of the same format encoded with the same codecs. I want trailer.mkv to be played after n minutes in the middle of main.mkv. After playing trailer.mkv, the rest of the main.mkv will ...
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14 views

How to concatenate videos with different number of streams?

I have two video files (.mov), first one contains only video stream and the second one contains both video and audio streams. Is it possible to concatenate them? I have tried using ffmpeg but it doesn'...
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29 views

Unsupported input video format "matroska,webm"

I would like to use ffmpeg-concat, but I get this error: (django-con-video) guettli@yoga15:~/django-con-video$ ./node_modules/.bin/ffmpeg-concat -t circleopen -d 750 -o out.mp4 *mkv ffmpeg-concat: 123....
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ffmpeg problems with tpad filter

I'm working with multiple filters using ffmpeg's -filter_complex, and I'm running into some weird problems using the tpad filter to add padding. I'm running ffmpeg 4.4 on a Mac. Issue with tpad and -...
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68 views

ffmpeg: concat without temp files?

Is it possible to concat without temp files using ffmpeg? eg; # nice ffmpeg -v error -f concat \ -ss "52.519" -copyts -to "53.153" -i in.mkv \ -ss "53.186" -copyts -...
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128 views

Does ffmpeg concat demuxer update the position of the moov atom if present in each video file?

Years ago I asked this question on: stackoverflow about correct syntax using the ffmpeg Concat demuxer to join mp4 files together. One question I hadn't thought to ask at the time was, when joining ...
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37 views

concat a/v desync (only in MPC-HC)

I'm concatenating .ts chunks intended for an HLS player into a single .mp4 video. Unlike in other questions these chunks possess same stream properties, However, some chunks have audio stream shorter ...
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64 views

ffmpeg - concatenate files, BUT strip the last few frames from the end of each one

I am trying to find the best way to automatically concatenate a large number of files that have been recorded with an overlap within them. In the process of 'glueing' the video files together, to get ...