Hi,
I am trying to create a pipeline to stream AAC using rtp,
then using Darwin Streaming Server to relay it to a client’s quicktime
player. I am able to do this successfully with video (by itself) with the
following pipeline
gst-launch -v v4l2src always-copy=false
do-timestamp=true \
num-buffers=$(( 30 * 60 * 5 )) !
\
video/x-raw-yuv,
format=\(fourcc\)UYVY,
\
width=720, height=480, framerate=\(fraction\)30/1 ! \
TIVidenc1
codecName=h264enc engineName=codecServer \
rateControlPreset=2 bitRate=512000 iColorSpace=UYVY \
resolution=720x480 frameRate=30 !
\
rtph264pay
scan-mode=bytestream !
\
udpsink host=225.1.1.2
auto-multicast=true port=9010
Audio however seems to be a different beast. I’ve
found even when piping AAC to a filesink, in order for quicktime to play the
audio, I have to use qtmux or mp4mux after the encoding phase. When I
attempt to mimic my video pipeline for audio like the following:
gst-launch -v alsasrc device=hw:0,0 num-buffers=$((30*60*5))
! \
audio/x-raw-int,
endianness=1234 ! \
queue ! \
TIAudenc1
engineName=codecServer codecName=aacheenc ! \
qtmux ! \
rtpmp4vpay pt=96
! \
udpsink
host=225.1.1.2 port=9010 auto-multicast=true
The pipeline doesn’t play – I get errors linking
mp4mux to rtpmp4apay (caps don’t match). Using gst-inspect I see that
qtmux has only 1 src - video/quicktime, and when looking at the rtpmp4 plugins
none of them take that as a sink. So I’m unclear how I can stream the
audio with rtp. Is there a different mux I can use that doesn’t put out
video/quicktime, but still works with quicktime player? Or is there some other
plugins to use between qtmux and one of the rtpmp4[a,v,g]pay plugins that will
convert the caps to video/mpeg?
Thanks
eric
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