Hi guys im trying to setup Gstreamer between my Pi and a windows computer. My comands are:
Pi:
~ raspivid -n -w 1280 -h 720 -b 1000000 -fps 15 -t 0 -o - | gst-launch-1.0 -v fdsrc ! h264parse ! rtph264pay config-interval=10 pt=96 ! udpsink host=[IP] port=9000
PC:
gst-launch-1.0 -v udpsrc port=9000 caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264" ! rtph264depay ! avdec_h264 ! videoconvert ! autovideosink sync=f
I get the error:
sudo: /home/pi: command not found
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
ERROR: from element /GstPipeline:pipeline0/GstH264Parse:h264parse0: No valid frames found before end of stream
Additonal debug info:
gst_base_parse_sink_event_default (): /GstPipeline:pipeline0/GstH264Parse:h264parse0
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...
Any help would be great thanks!!
(He just omitted the sudo in the line, but he actually typed it).
His home directory is /home/pi, and ~expands to /home/pi.
~ raspivid -n -w 1280 -h 720 -b 1000000 -fps 15 -t 0 -o -
expands to
/home/pi raspivid -n -w 1280 -h 720 -b 1000000 -fps 15 -t 0 -o -
Thus the "command not found", since /home/pi is not an executable. The result of this erroneous command is piped to gst-launch-1.0 and, of course, there are no valid frames!
Related
I am using the following ffmpeg command to inject an rtmp stream to mediasoup.
ffmpeg \
-re \
-v info \
-stream_loop -1 \
-i rtmp://3.126.121.45:1935/live/stream \
-map 0:a:0 \
-acodec libopus -ab 128k -ac 2 -ar 48000 \
-map 0:v:0 \
-c:v libvpx -minrate 2500k -maxrate 2500k -b:v 2500k -r 30 -g 60 -max_delay 0 -bf 0 -deadline realtime -cpu-used 1 \
-f tee \
"[select=a:f=rtp:ssrc=11111111:payload_type=101]rtp://52.29.30.225:41299?rtcpport=40612&pkt_size=1300|[select=v:f=rtp:ssrc=22222222:payload_type=102]rtp://52.29.30.225:44083?rtcpport=48791&pkt_size=1300"
But the video seems to freeze randomly and plays again. Any idea how I can fix this? Tried the solution given here and here with no luck.
Update: Seems like it is the problem of RTP retransmission when some packets are lost. Unfortunately, ffmpeg doesn't fare well with RTP streaming as mentioned here. Meaning ffmpeg doesn't support retransmission mechanism like nack, pli etc. So considering gstreamer instead as suggested in the mediasoup discourse discussion.
Based on the gStreamer Tutorial 3 for Android i'm trying to implement a UDP connection.
On the server side i have a raspberry pi with the following line to start the server.
raspivid -t 0 -hf -n -h 480 -w 640 -fps 15 -b 2000000 -o - | gst-launch-1.0 -v fdsrc ! h264sparse ! rtph264pay config-interval=10 pt=96! gdppay ! udpsink host=192.168.1.1 port=5000
On the receiver side i have the tutorial 3 in which i changed the pipeline to the following line.
>data->pipeline = gst_parse_launch("udpsrc port=5000 caps=\"application/x-rtp, media=video, clock-rate=90000, payload=96\" ! rtph264depay ! h264parse ! avdec_h264 ! videoconvert ! autovideosink", &error);
I also included the following plugins:
>$(GSTREAMER_PLUGINS_CORE) $(GSTREAMER_PLUGINS_PLAYBACK) $(GSTREAMER_PLUGINS_CODECS) $(GSTREAMER_PLUGINS_CODECS_RESTRICTED) $(GSTREAMER_PLUGINS_NET) $(GSTREAMER_PLUGINS_SYS)
When i start the app there is a blackscreen with no video or audio.
In Logcat i get an error that H264 and AAC mapping is not possible.
Maybe i have to include sprop-parameter-sets?
And if i have to, how can i easily do that with the right syntax?
On the server side you use rtph264pay and gdppay. You should remove gdppay.
Hej!
I'm trying to set up the following:
I have a GoPro Session 5 which streams from udp://10.5.5.9:8554
I have a raspberry pi 3 that is connected to the GoPro's wifi hotspot
I'd like to stream from the GoPro via the rpi over 4g to a Gstreamer viewer (in this case QGroundControl) on another computer with a static ip.
I can get this working by means of this tool:
https://github.com/KonradIT/gopro-py-api
and this command:
ffmpeg -f mpegts -i udp://10.5.5.9:8554 -map 0:0 -c copy -f rtp
udp://94.234.203.109:5000
Now I'd like to see if I can get better performance using Gstreamer.
I'm trying the following:
#!/bin/bash
gst-launch-1.0 -v \
rtpbin name=rtpbin \
udpsrc uri=udp://10.5.5.9:8554 \
! queue \
! avenc_h264_omx bitrate=500000 \
! "video/x-h264,profile=high" \
! h264parse \
! queue max-size-bytes=10000000 \
! rtph264pay pt=96 config-interval=1 \
! rtpbin.send_rtp_sink_0 rtpbin.send_rtp_src_0 \
! udpsink port=5000 host=94.234.203.109 ts-offset=0 name=vrtpsink
rtpbin.send_rtcp_src_0 \
! rtpbin.recv_rtcp_sink_0
And get this error:
Setting pipeline to PAUSED ...
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstUDPSrc:udpsrc0: Could not get/set settings from/on resource.
Additional debug info:
gstudpsrc.c(1548): gst_udpsrc_open (): /GstPipeline:pipeline0/GstUDPSrc:udpsrc0: bind failed: Error binding to address: Cannot assign requested address
Setting pipeline to NULL ...
Freeing pipeline ...
Can someone spare me some knowledge? Thanks!
Im trying to stream video from a Raspberry Pi (on Raspbian) to a Windows 7 PC like in this video: https://www.youtube.com/watch?v=lNvYanDLHZA
I have a Logitech C270 connected to the Raspberry Pi, and have managed to stream webcam video over TCP using:
gst-launch v4l2src device=/dev/video0 ! \
'video/x-raw-yuv,width=640,height=480' ! \
x264enc pass=qual quantizer=20 tune=zerolatency ! \
rtph264pay ! tcpsink host=$pi_ip port=5000
from my Pi. Receive this using VLC works, but with a 3 sec delay.
I want to do this over UDP to get a shorter delay (correct me if I'm wrong). But cannot for the life of me figure it out. I have tried following:
gst-launch-1.0 v4l2src device=/dev/video0 ! \
'video/x-raw-yuv,width=640,height=480' ! \
x264enc pass=qual quantizer=20 tune=zerolatency ! \
rtph264pay ! udpsink host=$pc_ip port=1234
and
gst-launch-1.0 udpsrc port=1234 ! \
"application/x-rtp, payload=127" ! \
rtph264depay ! ffdec_h264 ! fpsdisplaysink sync=false text-overlay=false
For the Pi and PC side, respectively (taken from
Webcam streaming using gstreamer over UDP)
but with no luck. (tried to change the video/x-raw-yuv to fit 1.0 version but still without luck)
Any hints would be highly appreciated!
Edit
With the raspi camera (not the webcam) the following works:
Windows batch script:
#echo off
cd C:\gstreamer\1.0\x86_64\bin
gst-launch-1.0 -e -v udpsrc port=5000 ! application/x-rtp, payload=96 !
rtpjitterbuffer ! rtph264depay ! avdec_h264 ! fpsdisplaysink sync=false
text-overlay=false
Raspberry Pi Bash Script:
#!/bin/bash
clear
raspivid -n -t 0 -rot 270 -w 960 -h 720 -fps 30 -b 6000000 -o - | gst-
launch-1.0 -e -vvvv fdsrc ! h264parse ! rtph264pay pt=96 config-interval=5 !
udpsink host=***YOUR_PC_IP*** port=5000
But I cannot figure out how to use to webcam instead of the raspberry pi camera (i.e. v4l2src instead of raspivid) in the same manner
Edit 2
The following works, but is very slow and has a huge delay:
RPi
gst-launch-1.0 -vv -e v4l2src device=/dev/video0 \
! videoscale \
! "video/x-raw,width=400,height=200,framerate=10/1" \
! x264enc pass=qual quantizer=20 tune=zerolatency \
! h264parse \
! rtph264pay config-interval=5 pt=96 \
! udpsink host=$myip port=$myport
PC:
gst-launch-1.0 -e -v udpsrc port=5001 ! ^
application/x-rtp, payload=96 ! ^
rtpjitterbuffer ! ^
rtph264depay ! ^
avdec_h264 ! ^
autovideosink sync=false text-overlay=false
I now suspect that (thanks to hint from #Mustafa Chelik) that the huge lag is due to the fact that the raspberry pi has to encode the webcam video, while the raspberry pi video is already encoded, not sure if this makes sense though?
Found hints to the solution from http://www.z25.org/static/rd/videostreaming_intro_plab/
The following worked very well for streaming video from Logitech c270 on raspberry pi to a windows 7 pc:
PC side:
gst-launch-1.0 -e -v udpsrc port=5001 ! ^
application/x-rtp, encoding-name=JPEG,payload=26 ! ^
rtpjpegdepay ! jpegdec ! ^
autovideosink
RPi side:
gst-launch-1.0 -v v4l2src device=/dev/video0 \
! "image/jpeg,width=1280, height=720,framerate=30/1" \
! rtpjpegpay \
! udpsink host=$myip port=$myport
I suspect that it was the encoding of the webcam video to h264 that was too slow on the raspberry pi, however the webcamera already gave jpeg frames and thus no encoding was nescessary using "image/jpeg"
I have used for my webcamstream the MJPG-Streamer and get a 0,2 seconds delay.
http://wiki.ubuntuusers.de/MJPG-Streamer
And the advantage is that you can watch it with the webbrowser.
I have searched all over the place and have not found anyone using the videomixer function from gstreamer with the raspberry pi's raspivid.
I am trying to duplicate the raspivid output and merge them side by side and then eventually send a stream over tcp. But for right now I am just looking for some help with getting the videomixing to work.
The resulting video should be 1280x568 for my specific application and I do not care that there is any angle between the videos to create a "3d effect" because it is not required for the specific application I'm making.
I am using gstreamer 1.2 so the function call is gst-launch-1.0 and I can not use ffmpeg b/c I believe it has depricated, so I assume I would just use videoconvert to achieve the same result.
Im not sure if I should be using h264parse instead of decodebin. So here is what Ive got so far:
gst-launch-1.0 fdsrc | raspivid -t 0 -h 568 -w 640 -fps 25 -hf -b 2000000 -o - ! decodebin ! queue ! videoconvert ! videobox border-alpha=0 right=-640 ! videomixer name=mix ! videoconvert ! autovideosink fdsrc | raspivid -t 0 -h 568 -w 640 -fps 25 -hf -b 2000000 -o - ! decodebin ! queue ! videoconvert ! videobox border-alpha=0 left=-640 ! mix.
Im trying to model this based off these two sources(the raspivid command in the first link works for me):
http://www.raspberry-projects.com/pi/pi-hardware/raspberry-pi-camera/streaming-video-using-gstreamer
http://www.technomancy.org/gstreamer/playing-two-videos-side-by-side/
I know I am probably so far off but I am having a lot of difficulty finding examples of how to do this, especially with the raspivid function. I would greatly appreciate any help. Thank You.
You can find a exemple, with some explaination how to use videomixer using videomixer
Example of using videomixer combining 3 videos
Note: UNIX paths are used in this example
gst-launch-1.0 -e \
videomixer name=mix background=0 \
sink_1::xpos=0 sink_1::ypos=0 \
sink_2::xpos=200 sink_2::ypos=0 \
sink_3::xpos=100 sink_3::ypos=100 \
! autovideosink \
uridecodebin uri='file:///data/big_buck_bunny_trailer-360p.mp4' \
! videoscale \
! video/x-raw,width=200,height=100 \
! mix.sink_1 \
uridecodebin uri='file:///data/sintel_trailer-480p.webm' \
! videoscale \
! video/x-raw,width=200,height=100 \
! mix.sink_2 \
uridecodebin uri='file:///data/the_daily_dweebs-720p.mp4' \
! videoscale \
! video/x-raw,width=200,height=100 \
! mix.sink_3