Changes between Version 41 and Version 42 of DirectShow


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Timestamp:
Apr 14, 2015, 9:50:48 PM (4 years ago)
Author:
rogerdpack
Comment:

add note on copyts possibly useful

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  • DirectShow

    v41 v42  
    124124Basically if you're capturing from a live mic, the default behavior for this hardware device is to "buffer" 500ms (or 1000ms) worth of data, before it starts sending it down the pipeline.  This can introduce startup latency, so setting this to 50ms (msdn suggests 80ms) may be a better idea here.  The timestamps on the data will be right, it will just have added (unneeded) latency if you don't specify this.
    125125
     126==!Synchronizing==
     127
     128The "copyts" flag might be useful to helping streams keep their input timestamps.  Especially if you have multiple "-f dshow -i XXX -f dshow -i YYY" style inputs, the latter capture graph might get started up slightly after the former.  If you desire to have more than "2 inputs, one audio, one video" to increase synconicity please request so.
     129
    126130== !TroubleShooting ==
    127131