access_output_udp debug: packet has been sent too late

[ilyasdeen]

Hi,

I am trying to stream out a mpeg2 stream using rtsp. I am using vlc in windows platform and the command I use in the stream output dialog is:
:sout=#rtp{dst=10.80.104.69,port=554,sdp=rtsp://10.80.104.117:554/birds.ts}

however in the messages i keep getting this messages:

access_output_udp debug: mmh, packets in the past (38518)
access_output_udp debug: packet has been sent too late (37834)
access_output_udp debug: packet has been sent too late (32834)
access_output_udp debug: packet has been sent too late (27834)
access_output_udp debug: packet has been sent too late (22834)
access_output_udp debug: mmh, packets in the past (38620)
access_output_udp debug: packet has been sent too late (48834)
access_output_udp debug: packet has been sent too late (45198)
access_output_udp debug: packet has been sent too late (41562)
access_output_udp debug: packet has been sent too late (37925)
access_output_udp debug: packet has been sent too late (34289)
access_output_udp debug: packet has been sent too late (30653)
access_output_udp debug: packet has been sent too late (27016)
access_output_udp debug: packet has been sent too late (23380)
access_output_udp debug: mmh, packets in the past (38750)
access_output_udp debug: packet has been sent too late (44834)
access_output_udp debug: packet has been sent too late (41758)
access_output_udp debug: packet has been sent too late (38681)
access_output_udp debug: packet has been sent too late (35604)
access_output_udp debug: packet has been sent too late (32527)
access_output_udp debug: packet has been sent too late (29450)
access_output_udp debug: packet has been sent too late (26373)
access_output_udp debug: packet has been sent too late (23296)
access_output_udp debug: packet has been sent too late (20219)
access_output_udp debug: mmh, packets in the past (38750)

could someone explain to me what it means? In my vlc client when I try to play it..the stream is jerky...
Thanks for the help guys!

[wang]

Hi !!!

Indeed, rtsp protocol permit to synchronize stream when you receive packets, with your clock system... Shortly, Pictures embedded clock informations wich have to be synchronized with your internal client's clock.

If sync failed, you have some display trouble......

I don't really know, how you can solve this problem, maybe by changing your fps stream.......

I wish you god luck, and don't forget to post the solution if you get it....

[Guest]

how can I change the fps of the stream?

[ilyasdeen]

this is the full messages log i get...


main debug: adding playlist item `C:\7100\ServerProgram\birds.ts' ( C:\7100\ServerProgram\birds.ts )
main debug: creating new input thread
main debug: set input option: sout to #rtp{dst=10.80.104.69,port=554,sdp=rtsp://10.80.104.117:554/birds.ts}
main debug: waiting for thread completion
main debug: thread 4168 (input) created at priority 1 (src/input/input.c:230)
main debug: stream=`rtp'
main debug: looking for sout stream module: 1 candidate
main debug: set sout option: sout-rtp-dst to 10.80.104.69
main debug: set sout option: sout-rtp-port to 554
main debug: set sout option: sout-rtp-sdp to rtsp://10.80.104.117:554/birds.ts
main: creating httpd
main debug: net: listening to 10.80.104.117 port 554
main debug: thread 4276 (httpd host thread) created at priority 0 (src/misc/httpd.c:1189)
main debug: using sout stream module "stream_out_rtp"
main warning: drive letter C: found in source
main debug: `C:\7100\ServerProgram\birds.ts' gives access `' demux `' path `C:\7100\ServerProgram\birds.ts'
main debug: creating demux: access='' demux='' path='C:\7100\ServerProgram\birds.ts'
main debug: looking for access_demux module: 1 candidate
main debug: creating access '' path='C:\7100\ServerProgram\birds.ts'
main debug: looking for access2 module: 5 candidates
vcd debug: trying .cue file: C:\7100\ServerProgram\birds.cue
access_file debug: opening file `C:\7100\ServerProgram\birds.ts'
main debug: using access2 module "access_file"
main debug: pre buffering
main debug: received first data for our buffer
main debug: prebuffering done 1408981 bytes in 0s - 22192 kbytes/s
main debug: creating demux: access='' demux='' path='C:\7100\ServerProgram\birds.ts'
main debug: looking for demux2 module: 40 candidates
main debug: using demux2 module "ts"
main debug: looking for a subtitle file in C:\7100\ServerProgram\
ts debug: DEMUX_SET_GROUP 0 00000000
main debug: starting in synch mode
main debug: `C:\7100\ServerProgram\birds.ts' successfully opened
ts debug: PATCallBack called
ts debug: new PAT ts_id=16 version=0 current_next=1
ts debug: * number=10 pid=64
ts debug: PMTCallBack called
ts debug: new PMT program number=10 version=0 pid_pcr=34
ts debug: * es pid=34 type=2 fcc=mpgv
main debug: selecting program id=10
main debug: looking for packetizer module: 17 candidates
main debug: using packetizer module "packetizer_mpegvideo"
main debug: stream out mode -> no decoder thread
ts debug: * es pid=33 type=3 fcc=mpga
main debug: looking for packetizer module: 17 candidates
main debug: using packetizer module "mpeg_audio"
main debug: stream out mode -> no decoder thread
packetizer_mpegvideo debug: Size 720x576 fps=25.000
packetizer_mpegvideo debug: need a starting pts/dts
main debug: adding a new input
main debug: looking for sout access module: 1 candidate
main debug: set sout option: sout-udp-raw to (null)
main debug: looking for network module: 1 candidate
main debug: using network module "ipv4"
main debug: unlocking module "ipv4"
main debug: thread 4408 (sout write thread) created at priority 15 (udp.c:293)
access_output_udp debug: udp access output opened(10.80.104.69:1232)
main debug: using sout access module "access_output_udp"
stream_out_rtp debug: access out udp{raw}:10.80.104.69:1232
stream_out_rtp debug: maximum RTP packet size: 1450 bytes
main warning: trying to send non-dated packet to stream output!
mpeg_audio debug: MPGA channels:2 samplerate:48000 bitrate:128
main debug: adding a new input
main debug: looking for sout access module: 1 candidate
main debug: set sout option: sout-udp-raw to (null)
main debug: looking for network module: 1 candidate
main debug: using network module "ipv4"
main debug: unlocking module "ipv4"
main debug: thread 4464 (sout write thread) created at priority 15 (udp.c:293)
access_output_udp debug: udp access output opened(10.80.104.69:1230)
main debug: using sout access module "access_output_udp"
stream_out_rtp debug: access out udp{raw}:10.80.104.69:1230
stream_out_rtp debug: maximum RTP packet size: 1450 bytes
access_output_udp debug: packet has been sent too late (1590941000)
access_output_udp debug: packet has been sent too late (1590936000)
access_output_udp debug: packet has been sent too late (1590931000)
access_output_udp debug: packet has been sent too late (1590926000)
access_output_udp debug: packet has been sent too late (1590921000)
access_output_udp debug: packet has been sent too late (1590916000)
access_output_udp debug: packet has been sent too late (1590911000)

main warning: trying to send non-dated packet to stream output!

I recieve this warning message which states that i am trying to send non-dated packet. can anyone explain what it means?