Re: [FFmpeg-user] Comparing audio to sync video

2018-12-18 Thread Joshua Grauman
On Tue, 18 Dec 2018, Carl Zwanzig wrote: 2018-12-18 12:36 GMT+01:00, Joshua Grauman : I have two video cameras recording an event 30 minutes long.[...] The audio won't be exactly identical as they are two different cameras, different mics, different locations, but they are both recording a

Re: [FFmpeg-user] Comparing audio to sync video

2018-12-18 Thread Joshua Grauman
Yes, exactly. Thanks for the mathematical name for what I'm trying to do. I don't necessarily need to do it in ffmpeg, so I found this, which should be easy to adapt for my needs (includes sample C code). http://paulbourke.net/miscellaneous/correlate Josh I have two video cameras recordin

Re: [FFmpeg-user] Comparing audio to sync video

2018-12-18 Thread Michael Koch
I have two video cameras recording an event 30 minutes long. I hit start on the two cameras at different times. I would like to figure out a command-line script that can basically diff the audio to figure out the difference between the start times and align the videos. The audio won't be exac

Re: [FFmpeg-user] Comparing audio to sync video

2018-12-18 Thread Carl Zwanzig
On 12/18/2018 10:27 AM, Carl Eugen Hoyos wrote: 2018-12-18 12:36 GMT+01:00, Joshua Grauman : I have two video cameras recording an event 30 minutes long.[...] The audio won't be exactly identical as they are two different cameras, different mics, different locations, but they are both recordin

Re: [FFmpeg-user] Comparing audio to sync video

2018-12-18 Thread Carl Eugen Hoyos
2018-12-18 12:36 GMT+01:00, Joshua Grauman : > I have two video cameras recording an event 30 minutes long. I hit start > on the two cameras at different times. I would like to figure out a > command-line script that can basically diff the audio to figure out the > difference between the start tim

[FFmpeg-user] Comparing audio to sync video

2018-12-18 Thread Joshua Grauman
Hi all, I have two video cameras recording an event 30 minutes long. I hit start on the two cameras at different times. I would like to figure out a command-line script that can basically diff the audio to figure out the difference between the start times and align the videos. The audio won't