Created attachment 264100 [details] [review]
Proposed patch (git diff origin)

Enable "dvbsrc" plugin to tune into a DVB-S2 signal by adding two new properties according to new Linux DVB S2API(version 5.10):

- DVBSRC_DELIVERY_SYSTEM
- DVBSRC_ROLLOFF


Reference:

http://linuxtv.org/downloads/v4l-dvb-apis/FE_GET_SET_PROPERTY.html#DTV-DELIVERY-SYSTEM


Files changed: gstdvbsrc.c, gstdvbsrc.h

Testing environment:

  Lubuntu, 3.8.0-32-generic kernel

  Multimedia controller: Philips Semiconductors SAA7146 (rev 01)
  Subsystem: Technotrend Systemtechnik GmbH S2-3200
  Kernel driver in use: budget_ci dvb

  GStreamer version: 1.3.0.1

  Astra 19 satellite 

Python testing output:

tune to: [HiB, v], mod:qpsk,  {'symbol-rate': 27500, 'polarity': 'v', 'modulation': 'qpsk', 'frequency': 11856000, 'delivery-system': 'dvb-s'}
===> Lock:  True

tune to: [LoB, H], mod:8PSK,  {'symbol-rate': 22000, 'polarity': 'H', 'modulation': '8PSK', 'frequency': 10773250, 'delivery-system': 'dvb-s2'}
===> Lock:  True

tune to: [LoB, H], mod:8PSK,  {'symbol-rate': 22000, 'polarity': 'H', 'frequency': 10773250, 'delivery-system': 'dvb-s2', 'modulation': '8PSK',  'rolloff': 20}
===> Lock:  True


gst-launch example:

gst-launch-1.0  dvbsrc  polarity="h" frequency=10773250 modulation=8PSK symbol-rate=22000  delivery-system=dvb-s2 ! tsdemux name=demux program-number=21100 ! video/x-h264 ! queue2 ! h264parse ! avdec_h264 ! videoconvert ! xvimagesink demux. ! audio/x-ac3 ! queue2  ! decodebin !  audioresample ! audioconvert ! alsasink