All Questions
19
questions
0
votes
1
answer
234
views
ffmpeg concat without reencoding keeps audio in one order but not the other
So I took a video and cut it two ways, one with reencoding and one
without reencoding, call them R and C (cut). Im trying to do
concatenation without reencoding, and I'm able to concat the video in
...
1
vote
1
answer
257
views
ffmpeg cut, fade and concat causes the video to get stuck
I'm trying to add "fade out" effect to a long video. One method I explored is cutting video at the end before few seconds, adding the fade out effect to the second split and concat both the ...
0
votes
1
answer
84
views
ffmpeg concatenated audio not present in the output
I'm trying to concatenate two audio files and add it to a video file but the output does not contain the audio.
I can see the duration of the output video is the sum of the two audio. But the audio is ...
1
vote
0
answers
160
views
Multiple Audio Trim with multiple channels of audio ffmpeg
I am looking for a way to trim a single video with 4 channels of audio in multiple places and then concat the pieces together maintaining the 4 audio channel trims as well.
I have the following ffmpeg ...
- 11
2
votes
1
answer
2k
views
Invalid file index 3 in filtergraph description -- FFMPEG
I am trying to concat 3 videos and give effetcs using FFMPEG. My below script is giving error.
I am not able to understand what is the issue. Which index i am missing.
Script below:
ffmpeg -i D:\...
- 121
1
vote
1
answer
584
views
Issue in Video when giving effects to multiple videos using FFMPEG
I am facing issue when giving effects to multiple video using FFMPEG using script below:
ffmpeg -i Episode10_2952.mp4 -i Episode10_3507.mp4 -i Episode10_RmvAdVi_1_5645.mp4 -i Episode10_RmvAdVi_1_9226....
- 121
0
votes
1
answer
2k
views
FFMPEG Concat result audio delay
I am editing some old homemade videos and I would like to split the files (~2h long, 60 GB) to smaller chunks ~10-15 min long for archiving on different media.
Currently I am testing merge/...
1
vote
1
answer
1k
views
concat video and images, and add audio with ffmpeg, but video output skips several images and console returns audio errors
I need to concatenate one video and many images, and add audio. I do not need a particular file format, but I prefer a one-step method without unecessary re-encoding.
I tried with the following ...
- 131
0
votes
1
answer
765
views
ffmpeg: concat filter does not work
I'm trying to concat multiple (Proof of concept: 2) mp3 files using ffmpeg and the concat filter with the following command:
ffmpeg -i "file1.mp3" -i "file2.mp3" -filter_complex [0:a:0][1:a:0]concat=...
- 1,551
0
votes
1
answer
549
views
Is there a way to tell ffmpeg "encode file A with format settings of file B?"
I know I could use ffprobe and then parse the text file to get the codec info of file B, but is there a simpler way?
Goal: I want to append a few seconds of silence to hundreds of audio files (who ...
- 1
6
votes
1
answer
5k
views
Crossfade many audio files into one with FFmpeg?
Using FFmpeg, I am trying to combine many audio files into one long one, with a crossfade between each of them. To keep the numbers simple, let's say I have 10 input files, each 5 minutes, and I want ...
- 63
1
vote
1
answer
527
views
FFMPEG Concat Silence & 10 Channel WAV
I am trying to join together using concat some silence which is generated, and then a WAV file. This works fine when the WAV is mono, stereo, etc. - but goes wrong when we have 10 channels of audio;
...
- 11
7
votes
1
answer
4k
views
FFmpeg concatenate audio and offset parts between each other
I figured out how I can concatenate multiple audio files with complex filter, but struggling with offsetting audio in result file. Say, I want to add a gap of 1 seconds silence between each ...
- 73
4
votes
1
answer
4k
views
Concatenate videos with/without audio stream
I have multiple videos in folder, but when first of all hasn't audio stream, audio disappear in concatenated video. Concatenated video is correct if first video has audio stream. How can I concatenate ...
- 143
0
votes
1
answer
3k
views
ffmpeg filter_complex concat does not include audio
I've managed to put together an ffmpeg filter complex which:
Scales an FBI warning (fbi.mp4) to the size ($w:$h) of a training video (train.mp4).
Pads the FBI warning so it's centered.
Concats the ...
