[Newbie] gst-launch1.0 - trying to get DVB-T working.

soylent soylent.tv at gmail.com
Sun Nov 24 05:07:27 PST 2013


Now i got the audio part working as well with:

gst-launch-1.0 --gst-debug-level=4 dvbsrc adapter=0 inversion=AUTO
modulation=AUTO trans-mode=AUTO bandwidth=8 frequency=514000000
pids=423:433:443 code-rate-lp=AUTO code-rate-hp=AUTO guard=AUTO
hierarchy=AUTO ! tsdemux name=demux demux. ! queue max-size-buffers=0
max-size-time=0 ! decodebin ! videoconvert ! xvimagesink demux. ! queue
max-size-buffers=0 max-size-time=0 ! decodebin ! audioconvert ! alsasink

It is perfect and also have audio/video sync.

I'm getting difficulties settings the caps ... i neet it to have RGB raw
audio/video in WebcamStudio.

I try this one:

gst-launch-1.0 --gst-debug-level=4 dvbsrc adapter=0 inversion=AUTO
modulation=AUTO trans-mode=AUTO bandwidth=8 frequency=514000000
pids=423:433:443 code-rate-lp=AUTO code-rate-hp=AUTO guard=AUTO
hierarchy=AUTO ! tsdemux name=demux demux. ! queue max-size-buffers=0
max-size-time=0 ! decodebin ! videoconvert ! videoscale ! videorate !
video/x-raw, framerate=25/1, width=320, height=240, depth=24, bpp=24,
blue_mask=255, green_mask=65280, red_mask=16711680 ! xvimagesink sync=false
demux. ! queue max-size-buffers=0 max-size-time=0 ! decodebin ! audioconvert
! audioresample !
audio/x-raw,rate=44100,channels=2,signed=true,width=16,depth=16,endianness=4321
! alsasink sync=false

but i got an error (sorry too debug messages start confusing me) and the
pipe doesn't start at all, and if i try this one:

gst-launch-1.0 --gst-debug-level=4 dvbsrc adapter=0 inversion=AUTO
modulation=AUTO trans-mode=AUTO bandwidth=8 frequency=514000000
pids=423:433:443 code-rate-lp=AUTO code-rate-hp=AUTO guard=AUTO
hierarchy=AUTO ! tsdemux name=demux demux. ! queue max-size-buffers=0
max-size-time=0 ! decodebin ! video/x-raw, framerate=\(fraction\)25/1,
width=320, height=240, depth=24, bpp=24, blue_mask=255, green_mask=65280,
red_mask=16711680 ! videoconvert ! xvimagesink sync=false demux. ! queue
max-size-buffers=0 max-size-time=0 ! decodebin ! audioconvert !
audio/x-raw,rate=44100,channels=2,signed=true,width=16,depth=16,endianness=4321
! alsasink sync=false

i got <mpeg2dec0 decoding error>.

Hope someone can help me a little.

karl





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