Changes between Version 16 and Version 17 of Seeking


Ignore:
Timestamp:
Oct 2, 2014, 1:16:13 PM (5 years ago)
Author:
lkiesow
Comment:

-ss as input option should be safe to use with bitstream copy

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  • Seeking

    v16 v17  
    7474Note that you can use two different time unit formats: sexagesimal (`HOURS:MM:SS.MICROSECONDS`, as in `01:23:45.678`), or in seconds. If a fraction is used, such as `02:30.05`, this is interpreted as "5 100ths of a second", not as frame 5. For instance, `02:30.5` would be 2 minutes, 30 seconds, and a half a second, which would be the same as using `150.5` in seconds.
    7575
    76 == Doing a bitstream copy gives me a broken file? ==
     76== Seeking while doing a bitstream copy ==
    7777
    78 If you use `-ss` with `-c:v copy`, the resulting bitstream might end up being choppy, not playable, or out of sync with the audio stream, since `ffmpeg` is forced to only use/split on i-frames.
     78Using `-ss` as input option together with `-c:v copy` might not be accurate since `ffmpeg` is forced to only use/split on i-frames. Though it will—if possible—adjust the start time of the stream to a negative value to vompensate for that.