----- Original Message ----- From: "Carl Eugen Hoyos" <[email protected]>
To: <[email protected]>
Sent: Sunday, April 12, 2015 12:57 PM
Subject: Re: [FFmpeg-user] one encode, two outputs with different duration


Bouke (VideoToolShed <bouke <at> videotoolshed.com> writes:

ffmpeg.exe -threads 0 -i M:\Honig\02-02c.mxf
-filter_complex "scale=480x360" -vcodec mjpeg -qscale 4
-map_channel 0.1.0 -map_channel 0.2.0 -acodec pcm_s16le
-aspect 16:9 -timecode 01:00:00:00  -f avi -

The avi file you are writing is readable from the first
second on, why do you want to write a second file at
the same time?

Carl,

DOH, you're right! The AVI is readable, BUT, sadly not by QuickTime, and that is what i use as a player. I need a player that i can control externally, and my work heavilly relies on frame accurate searching / JKL style control, and accurate feedback on the current movie time. Sadly, I have not (yet) found another player that gives me this. (And that's really sad, as the performance of QT is highly behind...

|  ffmpeg.exe -i - -c copy -t 20
M:\Honig\02-02c_short.mov

... particularly if this file is not readable because
you chose mov.

But at least you've given me enough to have a workaround.
Encode, after the first duration has passed start a second instance with running encode as input, do a -i *.avi -t dur -c copy *.mov and all is fine.

Thanks!

Bouke


Carl Eugen

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