v4l2src

[Brian Quandt]

Generally speaking, Transport streams convey MPEG data, which is encoded in
the YUV colorspace.   Presently, you'll see MPEG1, 2, and MPEG4 (and it's
various flavours, including AVC/H264...)

Yes, the caps cause a negotiation with the camera to send what it's
supposed/can do


On Mon, Aug 6, 2012 at 1:05 PM, Chuck Crisler <ccrisler at mutualink.net>wrote:

> Thank you for the prompt reply. Your samples show using a caps filter,
> don't they? Does that cause the source filter to actually capture in the
> desired format, or does it convert what is captured to that format, or
> either, depending on the capabilities of the actual device? You said that
> mpeg is generally YUV. Does that mean that it won't contain H264? Can't you
> encapsulate H264 in mpegts?
>
> On Mon, Aug 6, 2012 at 3:46 PM, Brian Quandt <brian.quandt at gmail.com>wrote:
>
>> Generally by setting the caps in whatever language you are using.
>> Looking at some of the command line examples, you can see it getting set to
>> what they want....
>> http://www.noah.org/wiki/video_4_linux_2_notes
>>
>> mpegts or any mpeg is just about always YUV (420 mostly, but in higher
>> end encoders 422)
>>
>> On Mon, Aug 6, 2012 at 12:39 PM, Chuck Crisler <ccrisler at mutualink.net>wrote:
>>
>>> How do you specify the capture format and resolution on the V4L2src
>>> plugin? Where is the mpegts generated, or is it captured from the device in
>>> that format? Does the mpegts contain raw YUV/RGB data or is it encoded?
>>>
>>> Thank you!
>>> Chuck Crisler
>>>
>>> _______________________________________________
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>>> gstreamer-devel at lists.freedesktop.org
>>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>>
>>>
>>
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>>
>
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