Support for camera channels

[AlbertoLopSie]

Hi Renier,
I noted you are using the camera local IP and port got from py-ezviz to build a RTSP MRL.

ha-ezviz/custom_components/ezviz_cloud/camera.py

Lines 118 to 124 in 031c5f0

	if camera["serial"] in conf_cameras:
	camera_username = conf_cameras[camera["serial"]][CONF_USERNAME]
	camera_password = conf_cameras[camera["serial"]][CONF_PASSWORD]
	camera_rtsp_stream = f"rtsp://{camera_username}:{camera_password}@{camera['local_ip']}:{local_rtsp_port}"
	_LOGGER.debug(
	"Camera %s source stream: %s", camera["serial"], camera_rtsp_stream
	)

You are using the default camera channel MRL syntax;

rtsp://admin:<PASSWORD>@<IP-ADDR>:<PORT>

However, If you used the form:

rtsp://admin:<PASSWORD>@<IP-ADDR>:<PORT>/Streaming/Channels/10x

You would be able to access additional channels supported by many EzViz cameras. For example, my CS-CV206 Mini-O camera supports 2 channels:

$ ffprobe -hide_banner rtsp://admin:<PASSWORD>@<IP-ADDR>:554/Streaming/Channels/101
Input #0, rtsp, from 'rtsp://admin:<PASSWORD>@192.168.1.243:554/Streaming/Channels/101':
  Metadata:
    title           : Media Presentation
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: h264 (Main), yuvj420p(pc, bt709, progressive), 1920x1080, 14.99 tbr, 90k tbn, 180k tbc
    Stream #0:1: Audio: aac (LC), 16000 Hz, mono, fltp

$ ffprobe -hide_banner rtsp://admin:<PASSWORD>@<IP-ADDR>:554/Streaming/Channels/102
Input #0, rtsp, from 'rtsp://admin:<PASSWORD>@<IP-ADDR>:554/Streaming/Channels/102':
  Metadata:
    title           : Media Presentation
  Duration: N/A, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: h264 (Main), yuvj420p(pc, bt709, progressive), 768x432, 14.99 tbr, 90k tbn, 180k tbc
    Stream #0:1: Audio: aac (LC), 16000 Hz, mono, fltp

As you can see, Channel 1 (101) produces a 1920x1080 video stream and channel 2 (102) a 768x432 one.

Second (LoRes) channel is suitable for displaying into a card in the Lovelace UI while the HiRes channel could be used to feed a Chromecast on a HDTV.

Not all cameras support more than one channel (C3A doesn't) because is supposed you will connect to only one channel at a time (to save battery I guess) and you would need to use an API call to set the default channel resolution before.

Info about channel support can be obtained from the JSON responses py-ezviz API call uses.

It would be a matter of generating one HA camera per channel to be able to get all them on HA. To make it simple, a config variable in ezviz_cloud.yaml could set the upper limit (channels: 2, for example) absence of that key would produce a single channel HA camera.

Hope it helps!!

[RenierM26]

Hi AlbertoLopSie,

I've added an ffmpeg arguments option to the integration. This will allow you to add /Streaming/Channels/101 or 102 to the end of the rtsp string. The rtsp string will also show under device attributes to make troubleshooting easier.

I'm still hoping I can find a "subchannel supported" string from the api to automate this.

[RenierM26]

This can now be set per camera on the last two versions.