Changes between Version 12 and Version 13 of Capture/Webcam


Ignore:
Timestamp:
Apr 6, 2014, 10:34:54 AM (5 years ago)
Author:
thilo.borgmann
Comment:

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  • Capture/Webcam

    v12 v13  
    6363v4l2-ctl -c <option>=<value>
    6464}}}
     65
     66== Mac ==
     67
     68Mac users can use the "qtkit" input device for grabbing integrated iSight cameras as well as cameras connected via USB or !FireWire.
     69QTKit is available on Mac OS X 10.4 (Tiger) and later.
     70
     71 
     72=== QTKit ===
     73
     74To list the supported capture devices, connected to the machine:
     75{{{
     76ffmpeg -f qtkit -list_devices true -i ""
     77}}}
     78
     79To use the default device which is usually the first device in the listing the user can either use an empty name string or "default":
     80{{{
     81ffmpeg -f qtkit -i "" out.mpg
     82}}}
     83or
     84{{{
     85ffmpeg -f qtkit -i "default" out.mpg
     86}}}
     87
     88To use one of these devices for capturing the user has to specifiy either the name of the device or the index shown in the device listing.
     89Abbreviations using just the beginning of the device name are possible. Thus, to capture form a device named "Integrated iSight-camera":
     90{{{
     91ffmpeg -f qtkit -i "Integrated" out.mpg
     92}}}
     93
     94To use the device's index provide the index either as the input or use the -video_device_index option that will override any given input name:
     95So
     96{{{
     97ffmpeg -f qtkit -i "2" out.mpg
     98}}}
     99and
     100{{{
     101ffmpeg -f qtkit -video_device_index 2 -i "default" out.mpg
     102}}}
     103will use the device with the index 2 ignoring the default device in the second case.