HLS Live streaming

lamegeorge · September 27, 2018, 1:38pm

Hi Guys,

I wish to live stream camera feed on ios app. I have found the following command for running the streaming server. The command is the following :

gst-launch-1.0 videotestsrc is-live=true ! x264enc ! mpegtsmux ! hlssink max-files=5

However, I am unable to find the existing threads to figure out how the URL needs to be formed on client side.

Currently I am forming the URL as suggested in https://devtalk.nvidia.com/default/topic/992525/jetson-tx1/no-video-for-hls-on-ios/1

http://192.168.1.36:8000/playlist.m3u8

but it doesn’t seem to work. I have replaced the IP with the IP of server.

Please help me out. Please let me know how to form the URL.

Thanks

DaneLLL · September 28, 2018, 2:10am

Please check
1 If x264enc outputs h264 stream wit AU delimiter
2 Run ‘python -m SimpleHTTPServer’ on TX1
3 Open http://192.168.1.36:8000/playlist.m3u8 on iOS Safari

The URL looks good. The issue should be lack of AU demiliter, or HTTP server is not running.

lamegeorge · September 28, 2018, 7:44am

Hi DaneLLL,

Thanks for your response. Just to be clear I am experimenting using TX2. When I run the command, I get the following dumps:

playlist.m3u8
segment%04d.ts files
wAUD.h264

By “If x264enc outputs h264 stream wit AU delimiter” do you mean #3 ?

My final objective is to stream live camera feed.

I am able to get the command to work by running server. I think that was the issue. However, I am not sure how to stream live feed from camera. Could you please help me with the gstreamer commandline?

I replaced videotestsrc by nvcamerasrc as follows:

gst-launch-1.0 nvcamerasrc sensor-id=0 ! x264enc ! mpegtsmux ! hlssink max-files=5

However, I am getting the following error :

WARNING: erroneous pipeline: could not link nvcamerasrc0 to x264enc0

Please let me know how to proceed.

Thanks

DaneLLL · September 28, 2018, 8:49am

Hi,
x264enc is SW encoder in gstreamer:
https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-ugly-plugins/html/gst-plugins-ugly-plugins-x264enc.html
It enables AU demiliter by default.

We verify below steps on r28.2.1/TX2 and it works:

// generate video files and playlist
$ gst-launch-1.0 videotestsrc num-buffers=300 ! 'video/x-raw,width=1280,height=720' ! x264enc ! mpegtsmux ! hlssink
// You should see
-rw-rw-r--  1 nvidia nvidia     155 Sep 28 08:28 playlist.m3u8
// and
-rw-rw-r--  1 nvidia nvidia 2738032 Sep 28 08:28 segment00000.ts

// run http server
$ python -m SimpleHTTPServer
Serving HTTP on 0.0.0.0 port 8000 ...

// Open link on iPhone 6 Safari
http://<TX2_IP_ADDR>:8000/playlist.m3u8

lamegeorge · September 28, 2018, 9:14am

Hi DaneLLL,

Thanks for your response. This seems to work. How should I use the same for ‘nvcamerasrc’ instead of videotestsrc ?

Thanks.

DaneLLL · September 28, 2018, 1:06pm

Please refer to user guide and set insert-aud to true.
https://developer.nvidia.com/embedded/dlc/l4t-accelerated-gstreamer-guide-28-2-ga

lamegeorge · October 1, 2018, 5:25am

Hi DaneLLL,

Thanks for the help. I tried the following command:

gst-launch-1.0 nvcamerasrc fpsRange="30.0 30.0" sensor-id=0 ! 'video/x-raw(memory:NVMM), width=(int)1280, height=(int)720, format=(string)I420, framerate=(fraction)30/1' ! omxh264enc bitrate=1000000 insert-aud=true ! video/x-h264, profile=baseline  ! hlssink max-files=5

I get the following output on terminal running SimpleHTTPServer:

Serving HTTP on 0.0.0.0 port 8000 ...
10.33.55.11 - - [01/Oct/2018 05:19:25] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:19:25] "GET /segment00000.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:19:40] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:19:40] "GET /segment00001.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:19:56] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:19:56] "GET /segment00002.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:20:11] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:20:11] "GET /segment00003.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:20:26] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:20:26] "GET /segment00004.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:20:41] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:20:41] "GET /segment00005.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:20:56] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:20:56] "GET /segment00006.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:21:12] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:21:12] "GET /segment00007.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:21:27] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:21:27] "GET /segment00008.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:21:42] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:21:42] "GET /segment00009.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:21:57] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:21:57] "GET /segment00010.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:22:12] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:22:12] "GET /segment00011.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:22:27] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:22:27] "GET /segment00012.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:22:42] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:22:42] "GET /segment00013.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:22:58] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:22:58] "GET /segment00014.ts HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:23:13] "GET /playlist.m3u8 HTTP/1.1" 200 -
10.33.55.11 - - [01/Oct/2018 05:23:13] "GET /segment00015.ts HTTP/1.1" 200 -

However, I am unable to see the stream on 10.33.55.11 machine. I am using VLC media player to receive the stream on 10.33.55.11 machine. I am also unable to find wAUD.h264 file being dumped.

Please let me know where I am going wrong.

Thanks.

DaneLLL · October 1, 2018, 5:45am

Looks like mpegtsmux is absent.

lamegeorge · October 1, 2018, 5:57am

Hi DaneLLL,

Thanks a lot for the help. It works.

jamesnewton · June 23, 2023, 12:06am

When I do this, it runs for about 10 seconds, then says

Got EOS from element "pipeline0".
Execution ended after 0:00:11.766280053
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

DaneLLL · June 26, 2023, 6:25am

Hi,

This is expected since it generates 300-frame content with the setting num-buffers=300
If you need more video data, please change the setting.

system · July 10, 2023, 6:26am

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