connection broken after two seconds

[tomakkermans]

hi, first of all, thank you very much for the work. It would be great if it worked!µ

So after setting the permissions and installing the dependencies, i run the ./all.sh script. First it asks for the pin code, and i can connect my android phone. For a brief moment, i then see the android screen and hear the audio on the RaspberryPI , but this quickly disappears and a new pin code is asked. Here the output from the terminal:

pi@raspberrypi:~ $ cd lazycast/ pi@raspberrypi:~/lazycast $ ./all.sh Selected interface 'p2p-wlan0-1' Available interfaces: p2p-wlan0-1 p2p-dev-wlan0 wlan0 already on p2p-wlan0-1 The display is ready PIN: 90554971 ---M1---> OPTIONS * RTSP/1.0 CSeq: 0 Require: org.wfa.wfd1.0

<-------- RTSP/1.0 200 OK CSeq: 1 \Public: org.wfa.wfd1.0, SET_PARAMETER, GET_PARAMETER

<---M2--- OPTIONS * RTSP/1.0 CSeq: 100 Require: org.wfa.wfd1.0

--------> RTSP/1.0 200 OK CSeq: 100 Public: org.wfa.wfd1.0, GET_PARAMETER, SET_PARAMETER, SETUP, PLAY, PAUSE, TEARDOWN

---M3---> GET_PARAMETER rtsp://localhost/wfd1.0 RTSP/1.0 CSeq: 1 Content-Length: 127 Content-Type: text/parameters

wfd_audio_codecs wfd_video_formats wfd_coupled_sink wfd_client_rtp_ports wfd_standby_resume_capability wd_initial_buffer

<-------- RTSP/1.0 200 OK CSeq: 2 Content-Type: text/parameters Content-Length: 485

wfd_client_rtp_ports: RTP/AVP/UDP;unicast 1028 0 mode=play wfd_audio_codecs: LPCM 00000002 00 wfd_video_formats: 00 00 02 04 0001FEFF 3FFFFFFF 00000FFF 00 0000 0000 00 none none wfd_3d_video_formats: none wfd_coupled_sink: none wfd_display_edid: none wfd_connector_type: 05 wfd_uibc_capability: input_category_list=GENERIC, HIDC;generic_cap_list=Keyboard, Mouse;hidc_cap_list=Keyboard/USB, Mouse/USB;port=none wfd_standby_resume_capability: none wfd_content_protection: none

---M4---> SET_PARAMETER rtsp://localhost/wfd1.0 RTSP/1.0 CSeq: 2 Session: 00000000 Content-Length: 249 Content-Type: text/parameters

wfd_audio_codecs: LPCM 00000002 00 wfd_video_formats: 00 00 02 04 00000080 00000000 00000000 00 0000 0000 00 none none wfd_presentation_URL: rtsp://192.168.173.80/wfd1.0/streamid=0 none wfd_client_rtp_ports: RTP/AVP/UDP;unicast 1028 0 mode=play

<-------- RTSP/1.0 200 OK CSeq: 3

---M5---> SET_PARAMETER rtsp://localhost/wfd1.0 RTSP/1.0 CSeq: 3 Session: 00000000 Content-Length: 27 Content-Type: text/parameters

wfd_trigger_method: SETUP

<-------- RTSP/1.0 200 OK CSeq: 4

<---M6--- SETUP rtsp://192.168.101.80/wfd1.0/streamid=0 RTSP/1.0 CSeq: 101 Transport: RTP/AVP/UDP;unicast;client_port=1028

--------> RTSP/1.0 200 OK CSeq: 101 Date: Tue, May 14 2019 06:15:39 GMT Session: 00000000 Transport: RTP/AVP/UDP;unicast;client_port=1028;server_port=19022

['RTSP/1.0 200 OK\r\nCSeq: 101\r\nDate: Tue, May 14 2019 06:15:39 GMT\r\nSession: 00000000\r\nTransport: RTP/AVP/UDP', 'unicast', 'client_port=1028', 'server_port=19022\r\n\r\n'] ['server_port=19022\r\n\r\n'] 19022 <---M7--- PLAY rtsp://192.168.101.80/wfd1.0/streamid=0 RTSP/1.0 CSeq: 102 Session: 00000000

--------> RTSP/1.0 200 OK CSeq: 102 Date: Tue, May 14 2019 06:15:39 GMT

---- Negotiation successful ---- idrport:42799 audiodest:0 oldcc 0 cc 4

PIN: 85127845 PIN: 42664680 PIN: 13581770 PIN: 49752687

[tomakkermans]

Nobody has this issue?! Its driving me nuts! :)

[homeworkc]

I would suggest testing different sources (like a Windows computer) and players (e.g., player_select = 1). Also try disable mouse/keyboard input (enable_mouse_keyboard = 0). From the log, the behavior is a bit weird. These lines: idrport:42799 audiodest:0 oldcc 0 cc 4 are the outputs of the player (i.e., the binary files). In a normal situation, the python script (d2.py) should print out more messages (like keep-alive messages, or, at the very least, a teardown message) after this. My guess is that the wifi is very crowded or the wifi card isn't working properly. (You use the built-in wifi, right?) You may also try modifying this line: https://github.com/homeworkc/lazycast/blob/db425d30a868b752c16e9e3dcd5ec3439a5c6db8/all.sh#L40 to sudo wpa_cli p2p_group_add persistent$perstr freq=<freq in MHz> where you can set the frequency to a different wifi channel in 2.4GHz or 5GHz bands. You may also try freq=2 or freq=5 to see whether the auto-selection does a better job.

[tomakkermans]

ok thanks for replying!, i'll try it asap (this evening); Is the program compatiable with wifi dongles? or written exclusively for (meant for) the built-in wifi?

[homeworkc]

It really depends on what chip the dongle uses. You can use WikiDevi to look up the IC part number. It should work without problems for some chips, but it may not work so smoothly for others. I only tested it on built-in wifi (3B and 3B+) chips.

[tomakkermans]

sadly.. no improvement. Changing the channel even caused my android phone to not detect any lazycast device in the list. But thanks for your suggestion. I'll try lazycast again in some months, hopefully with some better success! cheers