Can I directly get H.264 and MP2 or MP3 from a C930e webcam?

Question

I start the audio streaming with:

ffmpeg \
    -f alsa -i hw:1,0 -acodec mp2 -b:a 128k http://127.0.0.1:8090/wallaudio.ffm

and I can see that it will encode the PCM S16LE to MP2:

Stream mapping:
  Stream #0:0 -> #0:0 (pcm_s16le (native) -> mp2 (native))

Similarly, I start the video streaming with

ffmpeg \
    -f video4linux2 -s 1920x1080 -r 5 -re -i /dev/video0 -input_format mjpeg \
    -vcodec libx264 -bf 1 http://127.0.0.1:8090/wall.ffm                                          

and I can see that again it will transform the data from rawvideo to MP4:

Stream mapping:
  Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))

Is there a way to setup the camera (probably via v4l2-ctl?) so instead of raw data, I get data compressed by the camera and forward that with an ... -vcodec copy -acodec copy ... instead of having to encode (which makes the server go rather slow and makes the video quite choppy).