[Live-devel] input from microphone and camera
Ross Finlayson
finlayson at live555.com
Mon Apr 24 15:22:16 PDT 2006
>I plan to stream input from microphone(user willl talk into the mike) and
>a camera(Creative NX - I think its output is in I420/RGB frame format).
>
>I am not sure what kind of format this audio input will have. Do I have to
>write a class or can I use an existing class(AC3,AMR etc) from the
>liveMedia/LiveMedia directory?
The "LIVE555 Streaming Media" code does not include any codec (i.e.,
encoding or decoding) software. Therefore, if you want to stream
audio, you will either need to stream raw PCM audio from your input
device, or else write your own filter class to encode this to some
other (lower-bandwidth) format.
>Also for the camera input, are there any existing classes in the
>liveMedia/liveMedia directory that can be used for I420 frames or should I
>write my own class?
No, there's currently no support for the "uncompressed video" RTP
payload format. Again, you would need to write your own filter class
to encode this to (e.g.) MPEG-4 video.
Ross Finlayson
Live Networks, Inc. (LIVE555.COM)
<http://www.live555.com/>
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