[FFmpeg-trac] #7662(avfilter:closed): When using video filter fps, provide an option to retain actual pts, and pts_time for frames
FFmpeg
trac at avcodec.org
Thu Jan 10 13:28:21 EET 2019
#7662: When using video filter fps, provide an option to retain actual pts, and
pts_time for frames
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Reporter: vishal733 | Owner:
Type: defect | Status: closed
Priority: normal | Component: avfilter
Version: git-master | Resolution: invalid
Keywords: fps | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
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Comment (by vishal733):
That's not the way to look at it..
Steps:
i) First skip frames at 0.125125, 0.166833
ii) Pick frame at 0.208542 (Frame n=0 output from fps filter)
iii) Skip frames at 0.25025, 0.291958, 0.333667, 0.375375, 0.417083,
0.458792, 0.5005, 0.542208, 0.583917, 0.625625, 0.667333
iv) Pick frame at 0.709042 (Frame n=1 output from fps filter)
The frames skipped are based upon the fps value given to fps filter.
Now fps filteradditionally resets the pts_time in step (ii), and step(iv)
to 0, and 0.5 respectively (which qualifies as a cfr output from fps
filter, as intended by this filter)
Whereas what I need is for fps filter to not reset the pts_time in
step(ii), and step(iv). That's what I meant by unaltered pts_time. (maybe
even this will qualify as a cfr, and not really a vfr!)
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Ticket URL: <https://trac.ffmpeg.org/ticket/7662#comment:12>
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