[FFmpeg-user] Copying a EIA-608 subtitle stream in an m4v

Carl Eugen Hoyos ceffmpeg at gmail.com
Fri Mar 27 19:23:15 EET 2020

Am Fr., 27. März 2020 um 17:58 Uhr schrieb Dan Smith via ffmpeg-user
<ffmpeg-user at ffmpeg.org>:

> To restate my goal clearly: I want to process some m4v files,
> removing an unwanted "cover art" image appearing as mjpeg
> streams.

Just to clarify in case it is necessary:
FFmpeg never "removes" anything from a file, when you
so stream copy with ffmpeg, a new file is created with
new (and most likely) different features than the input
file (except for the media content).

MP4Box may or may not be able to do what you want.

For future questions:
Please never provide an excerpt of the console output,
always post the command line you tested together with
the complete, uncut console output.

And finally:
The fact that movtext is supported in mov but not in the
ipad output format sounds like a bug.

Carl Eugen

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