bluez-alsa as audio sink, print bluealsa: Missing RTP packet:

[wuzhe3377]

Hi:
1. bluealsa -i hci0 --profile=a2dp-sink
2. bluealsa-aplay -i hci0 -d bluetooth --profile-a2dp -vv 00:00:00:00:00:00
when phone connected to my device to playing music, after a period of time, there are the following
logs：
bluealsa: bluez.c:1034: Signal: PropertiesChanged: org.bluez.MediaTransport1
bluealsa: ctl.c:536: Client closed connection: 11
bluealsa: ctl.c:586: +-+-
bluealsa: io.c:110: FIFO endpoint has been closed: 14
bluealsa: transport.c:973: Closing PCM: 14
bluealsa: ctl.c:536: Client closed connection: 12
bluealsa: transport.c:973: Closing PCM: 14
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:565: New client accepted: 11
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:565: New client accepted: 12
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:318: PCM requested for 4C:7C:5F:99:3F:B6 type 1 stream 1
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:536: Client closed connection: 11
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:536: Client closed connection: 12
bluealsa: transport.c:973: Closing PCM: 15
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:565: New client accepted: 11
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:565: New client accepted: 12
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:318: PCM requested for 4C:7C:5F:99:3F:B6 type 1 stream 1
bluealsa: ctl.c:586: +-+-
bluealsa: bluez.c:609: Endpoint method call: org.bluez.MediaEndpoint1.ClearConfiguration()
bluealsa: transport.c:348: Freeing transport: A2DP Sink (SBC)
bluealsa: transport.c:847: Releasing transport: A2DP Sink (SBC)
bluealsa: transport.c:875: Closing BT: 13
bluealsa: transport.c:999: Exiting IO thread
bluealsa: transport.c:973: Closing PCM: 15
bluealsa: ctl.c:580: Emitting notification: 100 => 11
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:416: PCM close for 4C:7C:5F:99:3F:B6 type 1 stream 1
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:536: Client closed connection: 12
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:586: +-+-
bluealsa: bluez.c:609: Endpoint method call: org.bluez.MediaEndpoint1.SetConfiguration()
bluealsa: bluez.c:541: A2DP Sink (SBC) configured for device 4C:49:E3:32:7E:DB
bluealsa: bluez.c:543: Configuration: channels: 2, sampling: 44100
bluealsa: transport.c:675: State transition: 0 -> 0
bluealsa: ctl.c:580: Emitting notification: 1 => 11
bluealsa: ctl.c:586: +-+-
bluealsa: bluez.c:663: Endpoint already registered: /A2DP/SBC/Sink/2
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:565: New client accepted: 12
bluealsa: ctl.c:586: +-+-
bluealsa: ctl.c:318: PCM requested for 4C:49:E3:32:7E:DB type 1 stream 1
bluealsa: ctl.c:586: +-+-
bluealsa: bluez.c:1034: Signal: PropertiesChanged: org.bluez.MediaTransport1
bluealsa: transport.c:675: State transition: 0 -> 1
bluealsa: transport.c:821: New transport: 13 (MTU: R:900 W:1008)
bluealsa: bluez.c:1034: Signal: PropertiesChanged: org.bluez.MediaTransport1
bluealsa: transport.c:675: State transition: 1 -> 2
bluealsa: io.c:198: Starting IO loop: A2DP Sink (SBC)
bluealsa: transport.c:104: Created new IO thread: A2DP Sink (SBC)

bluealsa: Missing RTP packet: 26888 != 26887
bluealsa: Missing RTP packet: 28630 != 28629
bluealsa: Missing RTP packet: 29927 != 29926
bluealsa: Missing RTP packet: 30099 != 30098
bluealsa: Missing RTP packet: 30848 != 30847
bluealsa: Missing RTP packet: 31146 != 31145
bluealsa: Missing RTP packet: 31388 != 31387
bluealsa: Missing RTP packet: 31890 != 31889
bluealsa: Missing RTP packet: 32235 != 32234
bluealsa: Missing RTP packet: 32319 != 32318
bluealsa: Missing RTP packet: 32361 != 32360
bluealsa: Missing RTP packet: 32703 != 32702
bluealsa: Missing RTP packet: 34117 != 34116
bluealsa: Missing RTP packet: 35761 != 35760
bluealsa: Missing RTP packet: 35864 != 35863
bluealsa: Missing RTP packet: 35929 != 35928
bluealsa: Missing RTP packet: 36009 != 36008
bluealsa: Missing RTP packet: 36529 != 36528
bluealsa: Missing RTP packet: 37100 != 37099
bluealsa: Missing RTP packet: 37399 != 37398
bluealsa: Missing RTP packet: 38793 != 38792
bluealsa: Missing RTP packet: 39092 != 39091
bluealsa: Missing RTP packet: 39338 != 39337
bluealsa: Missing RTP packet: 40305 != 40304
bluealsa: Missing RTP packet: 41107 != 41106
bluealsa: Missing RTP packet: 41550 != 41549
bluealsa: Missing RTP packet: 41630 != 41629
bluealsa: Missing RTP packet: 41802 != 41801
bluealsa: Missing RTP packet: 41854 != 41853
bluealsa: Missing RTP packet: 43784 != 43783
bluealsa: Missing RTP packet: 45281 != 45280
bluealsa: Missing RTP packet: 45406 != 45405
bluealsa: Missing RTP packet: 45509 != 45508
bluealsa: Missing RTP packet: 46274 != 46273
bluealsa: Missing RTP packet: 47614 != 47613
bluealsa: Missing RTP packet: 47642 != 47641

Does anyone know what the printing problem is and how to solve it?

[arkq]

The "Missing RTP packet:" warning means, that there was a packet lost during receiving data from the BT source (connected BT device). The cause of it might be weak BT link (devices too wide apart), or high CPU usage by the bluealsa (if you are running bluealsa on a device with low computation power, see issue #21).

[arkq]

This issue is not related to the bluez-alsa per se, closing.