GSTREAMER RECORDING LIVE STREAMING

[shanmugamsundar]

hi all,

I am using imx535 qsb , in that i interface a camera application and i need to record the live streaming video to the server, now the camera is streaming but i cant able to record it, can any one help me.

Thanks

shan

[shanmugamsundar]

hi parrish,

          i had recorded the live streaming video by using the following command

COMMAND1:

gst-launch udpsrc port=5000 caps ="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)6, config=(string)000001b006000001b59113000001000000012000c888800f528045a14103, payload=(int)96, ssrc=(guint)424830278, clock-base=(guint)2874253685, seqnum-base=(guint)43950" ! gstrtpjitterbuffer ! rtpmp4vdepay ! tee name=mpgvideo ! queue ! ffdec_mpeg4 ! ffmpegcolorspace ! videoscale ! autovideosink  mpgvideo. ! queue ! ffdec_mpeg4 ! ffmpegcolorspace  ! avimux ! filesink location=mympg.mp4

NOTE: In command 1 we just decode the video and storing to the server PC in this method the size of the video is too large

for eg: size of 1 min video is 2gb

COMMAND2:

gst-launch udpsrc port=5000 caps ="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)6, config=(string)000001b006000001b59113000001000000012000c888800f528045a14103, payload=(int)96, ssrc=(guint)424830278, clock-base=(guint)2874253685, seqnum-base=(guint)43950" ! gstrtpjitterbuffer ! rtpmp4vdepay ! tee name=mpgvideo ! queue ! ffdec_mpeg4 ! ffmpegcolorspace ! videoscale ! autovideosink  mpgvideo. ! queue ! ffdec_mpeg4 ! ffmpegcolorspace ! ffenc_mpeg4  ! avimux ! filesink location=my1mpg.mp4

NOTE: In this command we encoding the video coming form the camera. In this method the video occupies less storage

for eg: for 1min video it occupies 7mb

I need to record the video without encoding and i need the space occupied by the video want to be less, is there any possible method ? if it so can you help me

thanks,

shan

[jparrish88]

The only thing that I have to offer is that you could try looking through each plugins parameters by executing a gst-inspect. For example: gst-inspect filesink

Will show you parameters like location. If you do the same for the ffenc_mpeg4 you should be able to find different parameters that will help you accomplish what you want (obviously this will take some testing).

[BrilliantovKiri]

You can use GStreamer, e.g.:
<capture_block > ! avimux ! filesink

Capture block depend on stream type, e.g.:

udpsrc multicast-group=224.1.4.6 port=5000 ! caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, payload=(int)96, encoding-name=(string)H264" ! rtph264depay ! avimux ! filesink

[shanmugamsundar]

hi Kirill Brilliantov

       thanks for your reply

             i am using gstreamer only  in that i achieved the live streaming, the live video is streaming in gst-launch window, i want to record that video and store into the server, now i am using the following command for live streaming

NOTE: in this command the video is streaming but not recording to the particular location or folder, what i want to do for recording this live video simultaneously?

COMMAND:

IN TARGET BOARD

gst-launch  mfw_v4lsrc fps-n=30 capture-width=1280 capture-height=720 capture-mode=4  ! queue ! mfw_vpuencoder codec-type=0 ! rtpmp4vpay ! udpsink host=192.168.0.50 port=5000

IN THE SERVER PC:

gst-launch udpsrc port=5000 caps ="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)6, config=(string)000001b006000001b59113000001000000012000c888800f528045a14103, payload=(int)96, ssrc=(guint)424830278, clock-base=(guint)2874253685, seqnum-base=(guint)43950" ! gstrtpjitterbuffer ! rtpmp4vdepay ! ffdec_mpeg4 ! ffmpegcolorspace ! videoscale ! autovideosink

thanks

shan

[jparrish88]

Hi Shanmugam,

What you would want to do is look into using the tee plugin.

tee allows you to do a 1-N translation.

For instance your stream would look something like this (I haven't tested this, but I think it would work):

gst-launch udpsrc port=5000 caps ="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)6, config=(string)000001b006000001b59113000001000000012000c888800f528045a14103, payload=(int)96, ssrc=(guint)424830278, clock-base=(guint)2874253685, seqnum-base=(guint)43950" ! gstrtpjitterbuffer ! rtpmp4vdepay ! tee name=mpgvideo ! ffdec_mpeg4 ! ffmpegcolorspace ! videoscale ! autovideosink .mpgvideo ! queue ! filesink location=mympg.mpg

This way you could RX video, save the compressed version and output raw video to the screen.

[shanmugamsundar]

Hi jparrish,

       I tried your command but its not working it shows the error message

WARNING: erroneous pipeline: could not link autovideosink0 to queue0

thanks

shan

[jparrish88]

Try

gst-launch udpsrc port=5000 caps ="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)MP4V-ES, profile-level-id=(string)6, config=(string)000001b006000001b59113000001000000012000c888800f528045a14103, payload=(int)96, ssrc=(guint)424830278, clock-base=(guint)2874253685, seqnum-base=(guint)43950" ! gstrtpjitterbuffer ! rtpmp4vdepay ! tee name=mpgvideo ! queue ! ffdec_mpeg4 ! ffmpegcolorspace ! videoscale ! autovideosink .mpgvideo ! queue ! filesink location=mympg.mpg

Again, I don't have a way to run this, sorry.

[shanmugamsundar]

hi parrish,

agian same problem reflects

WARNING: erroneous pipeline: could not link autovideosink0 to queue1

the autovideosink could not able to link the queue and also the another sink

[LeonardoSandova]

Please check the tee documentation to double check the correct usage (I think the autovideosink mpgvideo. instead of autovideosink .mpgvideo) . Also, when the pipeline is not 'linking', it means that there is a mismatch between caps (a src cap and a sync cap), so I recommend to start running your pipeline just with the source element (in your case, the udpsrc), then add one by one the rest of the elements; this way, you will find out which element is not linking correctly. Also, you can use the built-in debug capabilities in GSTREAMER, you can either add the parameter '-v' or '--gst-debug=*<element name>*:5', that way you get more info what the error means.

[BrilliantovKiri]

Hello, shanmugamsundar

As I see you output video on screen, gstreamer element autovideosink. Please try my example for write strean in file, important elements - avimux and filesink, avimux pack input data in AVI, filesink write intput to file.

[LeonardoSandova]

I am not sure if this helps, but take a look of this document

https://community.freescale.com/docs/DOC-93804

It is camera streaming BUT under a i.MX6Q platform.