Seconde méthode automatique de pilotage
As a reminder, this method will only work if you have successfully sent the “video” request to the encoder server, asking it to transmit the audio channel (see above).
- In the H264/H265 box control section of the PlutoDVB Controller page, enter the IP address of your encoder so that PlutoDVB can send the optimum parameters to the encoding box. Indeed after having entered the parameters of your DATV broadcast, PlutoDVB will determine the characteristics of the stream that the encoder will have to send. These parameters are in particular the definition (size) of the image, the frame rate automatically calculated from your configuration indicated in the Modulator part.
- In the Modulator section, enter your callsign and the usual characteristics of your DATV transmission: Frequency, Mode, Symbal Rate, FEC. Apply your settings by clicking on the Apply Settings button.
- Launch VLC (VideoLan). Open the network stream (Media Menu Open Network Stream or CTRL-N) of what the box is able to encode. The channel to connect is the Main stream which is numbered zero, by typing rtsp://192.168.1.120:554/live/0 in VLC
The resolution of the displayed image corresponds to the one that will be sent by the encoder to the PlutoSDR. It is determined by a PlutoDVB script (strategy.sh), depending on the bitrate of the encoded stream (and thus directly from your SR and FEC).
The resolution of the image corresponds to this table.
Video Rate Resolution W (px) Resolution H (px) Audio Video Rate (fps) < 100 k 384 216 32 k x1 10 < 200 k 384 216 32 k x1 15 < 250 k 576 324 32 k x1 15 < 400 k 768 432 32 k x2 25 < 1200 k 1280 720 64 k x 2 25 >= 1200 k 1920 1080 64 k x 2 25
To display the definition, and check the codec used, do CTRL-J