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ParameterRequiredDescription
formatNo

Parameter values are "mp4", "hls".

Video can be received in the original format (without recompression) via HLS protocols. HLS protocol supports only H.264 format.

The "mp4" player allows to receive the original video in H.264 and H.265. In all other cases the server recompresses it to MJPEG format.  

Note
titleImportant!

If video is requested in the format that differs from the original one, then recompression will be performed, therefore, Server load will increase.


w, hNo

w – frame width, h – frame height.

Info
titleNote

If h and w values are more than size of original video, the video will be received with original size.

Zooming out of width and height is available only discretely - in 2, 4, 8 times, etc. If specified sizes are not corresponding to 1/2, 1/4 etc. of original video size, the video will be received with size divisible by the original video size close to specified values.


Note
titleImportant!

The mp4 video is transferred without scaling.


frNo

fps.

Note
titleImportant!

This parameter is relevant only for MJPEG video.


enable_token_auth No

Get signed links to video streams.

enable_token_auth - enable authorization by token =1.

valid_token_hours - signature validation time (in hours). The maximum value is a week. The default value is 12 hours.

valid_token_hoursNo

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HTML
<script type="text/javascript" src="https://asciinema.org/a/98881.js" id="asciicast-98881" async></script>

HLS video

HLS protocol video can be received in the original format only. The following parameters are in use when receiving HLS protocol video:

ParameterRequiredDescription
keep_aliveNoTime in seconds in which the stream is to be kept alive. 
hls_timeNoThe segment length in seconds. 
hls_list_sizeNoThe maximum number of playlist entries. If set to 0 the list file will contain all the segments.
hls_wrapNoThe number after which the segment filename number wraps. If set to 0 the number will be never wrapped.

Sample request:

GET http://127.0.0.1:80/live/media/SERVER1/DeviceIpint.23/SourceEndpoint.video:0:0?format=hls&keep_alive=60

Sample response:

Code Block
{
    "keep_alive_seconds": 60,
    "keep_alive_url": "/live/media/hls/keep?stream_id=7e9d8c93-80e2-4521-9a54-cb854fe3cd2d",
    "stop_url": "/live/media/hls/stop?stream_id=7e9d8c93-80e2-4521-9a54-cb854fe3cd2d",
    "stream_url": "/hls/7e9d8c93-80e2-4521-9a54-cb854fe3cd2d/playout.m3u8"
}


ParameterDescription
keep_alive_secondsTime in seconds in which the stream is to be kept alive. 
keep_alive_url The url to keep the stream alive.
stop_urlThe url to stop the stream.
stream_urlThe url to access the list of segments.


Note
titleImportant!
HLS protocol video becomes available in several seconds after getting the response.

To playback video via HLS protocol use the stream_url parameter from the response as follows:

ffplay "http://root:root@10.0.12.65:80/hls/c83b48d5-2ab7-49eb-91ef-593f808d4e51/playout.m3u8"

RTSP video

RTSP protocol video is sent in the original format only.

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