21:04
I'm trying to concat 4 mp4 files. I'm using the command below but not able to concat
ffmpeg -i new1.mp4 -i new2.mp4 -i new3.mp4 -i new4.mp4 -filter_complex concat=n=4:v=1:a=1 output.mp4
Getting this error :
Input link in1:v0 parameters (size 640x640, SAR 16:9) do not match the corresponding output link in0:v0 parameters (640x640, SAR 427:240)
All four vides has the same codec and same size (640x640) and the same bitrate (30)
What I am doing (...)
20:56
I want to read the metadata in media files and then save that metadata in a text/xml file, so that I can later insert that data in my database. I would prefer to use ffmpeg.
Also is the same thing possible with MediaInfo?? I know I can get the metadata for individual tracks using MediaInfo, but I would want to automate it; as in whenever a new media file is found, read its metadata and then store it in a txt/xml file.
Or, is there any other tool/utility/API that I can use for (...)
19:43
I have a question about storing the output of a screen recording using FFmpeg.
Currently, I want to use the:
ffmpeg -video_size 1024x768 -framerate 25 -f x11grab -i :0.0 output.mp4
command to grab a screen recording on a remote Linux machine, where I am connecting to the Linux machine using ssh on my PC.
I was wondering, would it be possible to save output.mp4 onto my local machine after ending the screen recording instead of on the remote Linux machine? Or to a different location instead of the Linux machine in general?
I am new to Linux and using ssh, (...)
07:33
i'm new to FFmpeg, i'm trying to learn how to encode images to an mp4 using a stream.
But even tough i can generate a playable file, my file is "broken", it does does past 1sec, and if i check it's data with ffmpeg i can see that it's duration is accordly wrong with the kb/s fps value
Duration: 00:00:00.01 .... 2635232 kb/s, 15463.09 fps.
ffmpeg -i 25_5.mp4 -f ffmetadata 25_5.txt
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '25_5.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: (...)
01:53
Android Camera2 records video from multiple cameras, adds real-time timestamps to the frames captured by each camera, and finally composites the multiple videos into a single video file. does Android's native interface support these features? Do I have to user FFMPEG to handle the frames captured by each camera