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James <wireless@×××××××××××.com> [14-06-07 17:52]: |
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> <meino.cramer <at> gmx.de> writes: |
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> |
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> |
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> > the Logitech c920 HD Pro webcam is able to deliver 1920xq080x30fps |
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> > (H.264). |
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> |
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> Some interesting notes and comments at the bottom of this page: |
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> |
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> http://www.ideasonboard.org/uvc/ |
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> |
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> |
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> Also, in the past, I have found the best comments on various camera |
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> hardware in the relevant kernel driver. Sometimes that is a unique |
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> driver, other times it is a unified kernel driver for a similar group |
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> of video cameras. Sometimes you can go way back to where the kernel |
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> driver for a given video camera first appeared (got supported) in the linux |
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> kernel for detailed information on the limitations of a given piece |
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> of hardware. Often, the poorer performance on Linux, was intentionally |
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> due to the actions of the manufacturer, particular on max frame rate, |
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> bit minipulations and other key parameter settings of the cameras. Once |
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> folks learned the protocols (decoded them) on windows, they would make |
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> those adjustments with windows software and reverse engineer the |
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> driver software so as to be able to support various linux drivers. |
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> |
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> Logitech is very reasonable (at least compared to other vendors) but even |
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> there newer hardware rarely works with the best of a given feature set, |
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> until the product has been out for a while. If not, Logitech should |
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> have a published interface specification so and to make reverse engineering |
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> not necessary? |
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> |
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> Dunno know the specifics on the model your listing, as I've been out |
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> of that 'game' for a while now, but all those tigers still have the same |
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> stripes.... |
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> |
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> Good hunting! |
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> hth, |
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> James |
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> |
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> |
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> |
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> |
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|
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Hi, |
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|
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I've git "somethiong" working for me: |
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With vlc "Capture device" and a lot of setting I am able |
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to wath and record if wanted the stream of the c920. |
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BUT |
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There is big delay between audio and video (audio delayed) |
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and a smaller delay between reality and strem (which doesn't |
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matter in my case). |
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|
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How can I fix the delay between video and audio? |
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|
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Best regards, |
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mcc |
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