Oct 6, 2019 · Filters which work upon multiple inputs sync by timestamp i.e. in overlay filter, the filter will overlay overlay input with timestamp 5.0 upon ...
This document describes filters, sources, and sinks provided by the libavfilter library. 2 Filtering Introduction. Filtering in FFmpeg is enabled through the ...
Mar 14, 2018 · PTS is presentation timestamp, the time at which the frame ought to be presented i.e. shown. If you divide each frame's timestamp by 2 (0 ...
Sep 7, 2023 · Speeding up/slowing down video. The speed of a video stream can be changed by changing the presentation timestamp (PTS) of each video frame.
Dec 1, 2020 · Use the setpts (set presentation timestamp) video filter ( -vf ). The argument to the setpts filter is a formula for how to set the timestamp.
Sep 7, 2023 · Description. I found a strange behavior in setpts filter: sometimes when I use it to speed up a video it inserts more frames than expected.
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May 27, 2024 · So I want to take input video, select every 2500th frame and output the result at 60 fps. For some reason the above produces video that is 60 ...
Dec 25, 2020 · I'm trying to change the frame rate (and thus duration) of a video with no audio stream. My video is 23 seconds long @ constant 30 fps but I ...
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Summary of the bug: fps filter use current_pts to duplicate frames at end, but current_pts > last pts after setpts filter and fps insert too many frames at ...
Duration: 4:12
Posted: Aug 1, 2019
Posted: Aug 1, 2019