[FFmpeg-user] Concatenating MP4 Problems

[Young Kim]

On Monday, November 5, 2012 at 11:56 PM, Carl Eugen Hoyos wrote:
> Young Kim <shadowing71 <at> gmail.com (http://gmail.com)> writes:
> 
> > Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), 
> > yuv420p, 848x480 [SAR 107:106 DAR 107:60], 799 kb/s, 
> > 29.97 fps, 29.97 tbr, 11988 tbn, 59.94 tbc
> > 
> 
> 
> > Stream #1:0(und): Video: h264 (High) (avc1 / 0x31637661), 
> > yuv420p, 848x480 [SAR 427:424 DAR 427:240], 420 kb/s, 
> > 23.98 fps, 23.98 tbr, 11988 tbn, 47.95 tbc
> > 
> 
> 
> You can only concatenate identical video streams, 
> these streams have a few differences.
> (I don't know if additional filters can help 
> you, I suspect you will have to re-encode.)
> 
Can you elaborate on what the differences here are? From what I understand, these videos I'm working with when through the exact same encoding process, so I'm not exactly sure how they would be any different.

- Young