-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Syed,
test 2 should be completely transparent and thus you shouldn't lose quality. The input bitrate of the video is below 1Mb/s, so for a pure loopback test I can't imagine this going wrong. Are you sure that the sending VLC does *not* decode the video into something with a much higher bitrate. Also make sure you don't use throttle in between. Greetings, Marcus On 20.02.2014 11:32, Syed Aqeel Raza wrote: > Hi > > > I am trying to stream a video over a wireless network using UDP > protocol. For that, I started tests in the following sequence: > > > Test 1: VLC ---- VLC > > > Test 2: VLC ---- Gnuradio (using udp source and udp sink blocks > only) ---- VLC > > > Test 3: VLC ---- Gnuradio (with a complete communication model > (e.g. mod/demod)) ---- VLC > > > Test 4: VLC ---- Gnuradio ---- USRPs (multiple) ---- VLC > > > Test 1 completed successfully and the streamed video quality is > perfect at the receiver end. Whereas, in test 2, test 3 and test 4 > I've successfully got the streamed video at the receiver end but > the quality is not good (it's even more degraded when shift to the > higher test levels). During the testing a warning message appeared > on gnuradio console i.e. Too much data; packet loss. > > > I tried to resolve this issue by adjusting the factors like > payload size and sampling rate but nothing works. The flowcharts > and the video are attached here for reference. > > > Furthermore, can anyone give me a hint that how can I check the > parameters like throughput, packet delay and SNR. > > > Kindly assist me and point out the mistake I've made, waiting for > earliest reply. Thanks. > > > Regards, Syed Aqeel Raza > > > > _______________________________________________ Discuss-gnuradio > mailing list Discuss-gnuradio@gnu.org > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQEcBAEBAgAGBQJTBxjSAAoJEAFxB7BbsDrLzxcH/ip3m6F2ls0itx95IlN2qov0 f3etC7XX0XgF91uO9XwpLSdjsIjGaXz8G7Yc7zKCkrcBL9xVuYl/xpqHKwxy2gWL /FoROdlioZ7Nr/xWkuMTsRAJQgx/VIVWLSoSutdT4Bc7fc4z6lcosPDQ/ShUziw9 IZnfPfX2Wumh1QkOKkcIYxTjyIL1tqi6X2T3LrfHC3FBc2g3JL90xPFlc4hXfMHM 0zwkXNiSAVZxzRgbW5mHolygU80AvrP529B2mHD9hoiJfDTGLDvyxmsrU2E2Pc2Y GCnIJ5bHQBENcemYeGceKtRsd9MO7TV9RyTOR4q2ghhIn1z2W+WFMvY4JwRG800= =gDsk -----END PGP SIGNATURE----- _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
