> >> The "video" was encoded by a hardware encoder, the "held frame" by
> >> x264, you cannot concatenate them.
> > When you say "cannot concatenate" do you mean with "-c copy" or not at all?
> Didn't you try without -c copy?
Yes, I tried both ways, and both produced invalid output. I'm not sure
2017-02-21 1:54 GMT+01:00 John Hawkinson :
>> The "video" was encoded by a hardware encoder, the "held frame" by
>> x264, you cannot concatenate them.
>
> When you say "cannot concatenate" do you mean with "-c copy" or not at all?
Didn't you try without -c copy?
You cannot use the concat demuxer
Thanks, Carl Eugen. It looks like -r ntsc is perhaps a more user-friendly
alias and produces the same output as -r 3/1001 (same md5 checksum).
> The "video" was encoded by a hardware encoder, the "held frame" by
> x264, you cannot concatenate them.
When you say "cannot concatenate" do you mea
2017-02-20 2:33 GMT+01:00 John A Hawkinson :
> pb3:test jhawk$ ffmpeg -loop 1 -i f1.png -t 3.933 -pix_fmt yuv420p -r 29.97
> h5.mp4
If you want ntsc framerate, you have to specify -r 3/1001
> So, now I want to concatenate the held frame (3.9 seconds) with the
> video (1.1 seconds). Their
I want to be clear -- I only gave my goal (stitching multiple videos
together) so you'd have context. I'm not asking for help with the
overall task, merely with the concatation problem. I don't mean to
sound ungreatful, and Erik, I've tried to answer all your questions,
even though they seem to be
Hi John,
just to make sure I get this right, are you trying to build an advanced
version of Vantage Camera Ingest? Have fun then... ;-)
Let's go trough this step by step to find out if your approach makes sense:
Obviously you're trying to concat recordings from a DSLR.
-> Why are there gaps in b
Hi:
I filed a bug yesterday and Cigaes suggested my problem wasn't
really a bug and I should seek out help here, so I'm doing so. (Would it
be better for me to try to do this in html email with some markup instead
of plain text? Sorry there's so much ffmpeg/ffprobe output involved.)
See https:
