On 2021-02-27 03:29, Carl Eugen Hoyos wrote:
Am Sa., 27. Feb. 2021 um 06:34 Uhr schrieb Mark Filipak (ffmpeg)
<markfili...@bog.us>:
Question: Why would testsrc.mpg have been created with non-zero timestamp for
frame 0?
Nothing in the MPEG specification requires the first frame to have
a timestamp of 0, so whatever the design decision was, it is not
wrong.
Hi, Carl Eugen, thank you.
I created testsrc.mpg via this script command:
ffmpeg -f lavfi -i testsrc=duration=5:size=1280x720:rate=30000/1001 testsrc.mpg
The 1st PTS is 48003 -- I don't have a tool with which I can confirm this at the bit level, but it's
what ffprobe reports. Why would ffmpeg do that?
And do you know why this:
ffmpeg -i testsrc.mpg -codec copy testsrc.mkv
fails?
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