Bug 210932 – getUserMedia returns OverConstrained on Jitsi

• Component: WebRTC
• Status: RESOLVED FIXED

[Philippe Normand]

Because of this block of code: https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/platform/mediastream/RealtimeVideoCaptureSource.cpp#L267

Any reason why lower-resolutions presets are not checked?

Jitsi requires 1280x720 at 30fps but because of that, if my webcam doesn't support this, similar lower presets (same aspect-ratio) are dimissed. I don't understand why :)

[Philippe Normand]

That's one of the reasons Jitsi (meet.jit.si) doesn't work well currently on Safari. It would be great to fix it, as it's quite widely used nowadays.

[youenn fablet]

So, you would like WebKit to upsample?
This seems sad but is doable...
Maybe we should bring that issue to Jitsi.

[Philippe Normand]

Well, I think that upsampled video is better than no video at all :)

[Philippe Normand]

https://github.com/jitsi/jitsi-meet/issues/5425

[Philippe Normand]

Another likely reproducer: https://test.webrtc.org

[Jaya]

Hey there, I am a Jitsi developer. We do use ideal constraints so I am surprised you are running into this issue.
Here is the link to the line of code - https://github.com/jitsi/lib-jitsi-meet/blob/master/modules/RTC/RTCUtils.js#L56
Can you pls provide me more details about the issue ? The github issue referenced in the above comment is a meta issue for all camera related bugs, I wasn't able to dig up your particular issue. Thank you !

[Philippe Normand]

These are the constraints Jitsi currently requires for me:

audioConstraints {"mandatoryConstraints":{},"advancedConstraints":[]} videoConstraints {"mandatoryConstraints":{"width":{"min":320,"max":1280,"ideal":1280},"height":{"min":180,"max":720,"ideal":720},"facingMode":{"exact":[],"ideal":["user"]}},"advancedConstraints":[]}

This is a JSON internal serialization of the constraints... I can submit a patch if such feature is considered useful for logging.

[Jaya]

Created attachment 397461 [details]
gUM constraints

[youenn fablet]

Seems like constraints that are ok, min is 320x280, ideal is 1280x720.
I am not sure how we are hitting OverConstrained here.

[youenn fablet]

navigator.mediaDevices.getUserMedia({video : {width:{"min":320,"max":1280,"ideal":1280},height:{"min":180,"max":720,"ideal":720}, facingMode: "user"} }) works for me locally.

[Philippe Normand]

(In reply to youenn fablet from comment #10)
> navigator.mediaDevices.getUserMedia({video :
> {width:{"min":320,"max":1280,"ideal":1280},height:{"min":180,"max":720,
> "ideal":720}, facingMode: "user"} }) works for me locally.

What's your MBP model?
On a early 2013 MBP, the gUM fails on Jitsi, I suppose because my webcam doesn't handle 720p at 30fps.

[youenn fablet]

Mine is more recent but I am not sure it matters because Safari should process these constraints just fine as Lon as the web cam can provide 320x180.

Can you try Safari Tech Preview maybe?

[Philippe Normand]

Created attachment 397465 [details]
failing gUM

This is on Safari TP.

[Philippe Normand]

navigator.mediaDevices.getUserMedia({video:{}}) works though ;)

[youenn fablet]

(In reply to Philippe Normand from comment #14)
> navigator.mediaDevices.getUserMedia({video:{}}) works though ;)

Can you play a little bit with the constraints and reduce as much as possible?
We should probably add a console log error message with the failing constraint.

[Philippe Normand]

Any non-empty video constraint fails, basically. Even this: {video : {height:{"min":180}}}. The only working one I found so far is {video:{}}.

[Philippe Normand]

Created attachment 397477 [details]
gUM works in Chrome

[Eric Carlson]

What does this produce:

(async () => {
  try {
    const filter = ({width, height}) => ({width, height});
    const stream = await navigator.mediaDevices.getUserMedia({video:{}});
    const [track] = stream.getVideoTracks();
    console.log(`Capabilities: ${JSON.stringify(filter(track.getCapabilities()), null, 2)}`);
    console.log(`Settings: ${JSON.stringify(filter(track.getSettings()), null, 2)}`);
  } catch(e) {
    console.log(e);
  }
})();

[Philippe Normand]

[Log] Capabilities: {
  "width": {
    "max": 1280,
    "min": 1
  },
  "height": {
    "max": 720,
    "min": 1
  }
}
[Log] Settings: {
  "width": 640,
  "height": 480
}

[Philippe Normand]

Created attachment 397504 [details]
gUM probe

[Philippe Normand]

(In reply to Philippe Normand from comment #19)
> [Log] Capabilities: {
>   "width": {
>     "max": 1280,
>     "min": 1
>   },
>   "height": {
>     "max": 720,
>     "min": 1
>   }
> }
> [Log] Settings: {
>   "width": 640,
>   "height": 480
> }

Same on Chrome BTW. So is this a bug in the end?

[Eric Carlson]

(In reply to Philippe Normand from comment #21)
> 
> Same on Chrome BTW. So is this a bug in the end?

It is definitely a bug if all non-empty video constraint fail.

[Philippe Normand]

FWIW this isn't specific to the Mac port. Also happens in GTK.

[Philippe Normand]

This yields no result in Safari TP:

(async () => {
  for (let w = 1280; w > 0; w -= 10) {
    for (let h = 720; h > 0; h -= 10) {
      try {
        let stream = await navigator.mediaDevices.getUserMedia({
          video: {
            width: {
              "min": w,
              "max": 1280,
              "ideal": w
            },
            height: {
              "min": h,
              "max": 720,
              "ideal": h
            }
          }
        });
        console.log("Success " + w + "x" + h);
      } catch (err) {}
    }
  }
  console.log("Done");
})();

[Ribero]

Same situation in my context running:

(async () => {
  try {
    const filter = ({width, height}) => ({width, height});
    const stream = await navigator.mediaDevices.getUserMedia({video:{}});
    const [track] = stream.getVideoTracks();
    console.log(`Capabilities: ${JSON.stringify(filter(track.getCapabilities()), null, 2)}`);
    console.log(`Settings: ${JSON.stringify(filter(track.getSettings()), null, 2)}`);
  } catch(e) {
    console.log(e);
  }
})();

with: 

MacBook Pro (Retina, mid-2012), macOS 10.14.6 / Safari 13.1 and 13.1.1 :

[Log] Capabilities: {
  "width": {
    "max": 1280,
    "min": 1
  },
  "height": {
    "max": 720,
    "min": 1
  }
}
[Log] Settings: {
  "width": 640,
  "height": 480
}

iMac (Retina 4K, 21.5-inch, 2017), macOS 10.14.6 / Safari 13.1 and 13.1.1:

[Log] Capabilities: {
  "width": {
    "max": 1280,
    "min": 1
  },
  "height": {
    "max": 720,
    "min": 1
  }
}
[Log] Settings: {
  "width": 640,
  "height": 480
}

and with an antique Mac Pro (beginning 2008), macOS 10.13.6 (17G66), Safari 13.0.4 (13608.4.9.1.4) + iSight :

[Log] Capabilities: {
  "width": {
    "max": 640,
    "min": 1
  },
  "height": {
    "max": 480,
    "min": 1
  }
}
[Log] Settings: {
  "width": 640,
  "height": 480
}

[Jaya]

Any chance of this getting fixed ? We have more Jitsi users complaining about this issue. Specifying only ideal constraint and not specifying min/max values for width/height seem to work for some of the cases.

[Radar WebKit Bug Importer]

<rdar://problem/64403675>

[youenn fablet]

Philippe, if you have time to build WebKit Tot with https://bugs.webkit.org/show_bug.cgi?id=213643 applied on your laptop, that might help. Or we can wait for STP to pick up this change.

[Philippe Normand]

(In reply to youenn fablet from comment #28)
> Philippe, if you have time to build WebKit Tot with
> https://bugs.webkit.org/show_bug.cgi?id=213643 applied on your laptop, that
> might help. Or we can wait for STP to pick up this change.

I'm not sure this will help, that patch doesn't log the call site I referred to in comment 0, afaics.

[youenn fablet]

(In reply to Philippe Normand from comment #0)
> Because of this block of code:
> https://trac.webkit.org/browser/webkit/trunk/Source/WebCore/platform/
> mediastream/RealtimeVideoCaptureSource.cpp#L267
> 
> Any reason why lower-resolutions presets are not checked?

We do not want to super-sample in general.

> Jitsi requires 1280x720 at 30fps but because of that, if my webcam doesn't
> support this, similar lower presets (same aspect-ratio) are dimissed. I
> don't understand why :)

It asks for 1280x720 but these are ideal constraints so normally, if it cannot be met, it should not result in an error.

[youenn fablet]

> I'm not sure this will help, that patch doesn't log the call site I referred
> to in comment 0, afaics.

It should log which constraint is failing and if this is a video wifth/height/frame rate constraint, the video presets available.

[Philippe Normand]

Starting MiniBrowser.
RealtimeVideoCaptureSource::bestSupportedSizeAndFrameRate failed supporting constraints 1280 720 30.000000
VideoPreset of size (2304,1536) and type 2
VideoPreset frame rate range [2.000000, 2.000000]
VideoPreset of size (2304,1296) and type 2
VideoPreset frame rate range [2.000000, 2.000000]
VideoPreset of size (1920,1080) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset of size (1600,896) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset of size (1280,720) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset of size (960,720) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset of size (1024,576) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset of size (800,600) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset of size (864,480) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset of size (800,448) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (640,480) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (640,360) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (432,240) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (352,288) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (320,240) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (320,180) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (176,144) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (160,120) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (160,90) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
Video capture was requested but no device was found amongst 1 devices
IntConstraint 1, min 320, max 1280, exact -1, ideal 1280
IntConstraint 2, min 180, max 720, exact -1, ideal 720
MediaConstraint 5 of type 4
RealtimeVideoCaptureSource::bestSupportedSizeAndFrameRate failed supporting constraints 1280 720 30.000000
VideoPreset of size (2304,1536) and type 2
VideoPreset frame rate range [2.000000, 2.000000]
VideoPreset of size (2304,1296) and type 2
VideoPreset frame rate range [2.000000, 2.000000]
VideoPreset of size (1920,1080) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset of size (1600,896) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset of size (1280,720) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset of size (960,720) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset of size (1024,576) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset of size (800,600) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset of size (864,480) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset of size (800,448) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (640,480) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (640,360) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (432,240) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (352,288) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (320,240) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (320,180) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (176,144) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (160,120) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (160,90) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
Video capture was requested but no device was found amongst 1 devices
IntConstraint 1, min 320, max 1280, exact -1, ideal 1280
IntConstraint 2, min 180, max 720, exact -1, ideal 720
MediaConstraint 10 of type 4

[Philippe Normand]

That's GTK on my linux workstation, with a logitech C920 webcam.

[Philippe Normand]

$ gst-device-monitor-1.0 Video/Source
Probing devices...


Device found:

	name  : HD Pro Webcam C920
	class : Video/Source
	caps  : video/x-raw, format=(string)YUY2, width=(int)2304, height=(int)1536, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)2/1;
	        video/x-raw, format=(string)YUY2, width=(int)2304, height=(int)1296, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)2/1;
	        video/x-raw, format=(string)YUY2, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction)5/1;
	        video/x-raw, format=(string)YUY2, width=(int)1600, height=(int)896, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)960, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)1024, height=(int)576, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)800, height=(int)600, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)864, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)800, height=(int)448, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)432, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)352, height=(int)288, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)320, height=(int)180, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)176, height=(int)144, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)160, height=(int)120, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-raw, format=(string)YUY2, width=(int)160, height=(int)90, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)1600, height=(int)896, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)960, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)1024, height=(int)576, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)800, height=(int)600, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)864, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)800, height=(int)448, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)432, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)352, height=(int)288, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)320, height=(int)180, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)176, height=(int)144, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)160, height=(int)120, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        image/jpeg, width=(int)160, height=(int)90, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1920, height=(int)1080, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1600, height=(int)896, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1280, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)960, height=(int)720, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)1024, height=(int)576, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)800, height=(int)600, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)864, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)800, height=(int)448, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)640, height=(int)480, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)640, height=(int)360, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)432, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)352, height=(int)288, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)320, height=(int)240, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)320, height=(int)180, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)176, height=(int)144, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)160, height=(int)120, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	        video/x-h264, stream-format=(string)byte-stream, alignment=(string)au, width=(int)160, height=(int)90, pixel-aspect-ratio=(fraction)1/1, framerate=(fraction){ 30/1, 24/1, 20/1, 15/1, 10/1, 15/2, 5/1 };
	properties:
		device.path = /dev/video0
		udev-probed = false
		device.api = v4l2
		v4l2.device.driver = uvcvideo
		v4l2.device.card = "HD\ Pro\ Webcam\ C920"
		v4l2.device.bus_info = usb-0000:00:14.0-1
		v4l2.device.version = 329235 (0x00050613)
		v4l2.device.capabilities = 2225078273 (0x84a00001)
		v4l2.device.device_caps = 69206017 (0x04200001)
	gst-launch-1.0 v4l2src ! ...

[Philippe Normand]

I suppose this failure is kinda expected because the webcam doesn't support 1280x720@30 for raw video. But it would be nice to fallback to a smaller resolution.

I can't test on my MBP now, I'll wait the Safari TP update.

[youenn fablet]

Thanks,

The issue might be that the width can go from 144 to 2304, so 1280 is fine, but frame rate cannot follow, hence the issue.
I guess the issue is ideal constraints are not handled properly.

(In reply to Philippe Normand from comment #32)
> Starting MiniBrowser.
> RealtimeVideoCaptureSource::bestSupportedSizeAndFrameRate failed supporting
> constraints 1280 720 30.000000
> VideoPreset of size (2304,1536) and type 2
> VideoPreset frame rate range [2.000000, 2.000000]
> VideoPreset of size (2304,1296) and type 2
> VideoPreset frame rate range [2.000000, 2.000000]
> VideoPreset of size (1920,1080) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset of size (1600,896) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset of size (1280,720) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset of size (960,720) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset of size (1024,576) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset of size (800,600) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset of size (864,480) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset of size (800,448) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (640,480) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (640,360) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (432,240) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (352,288) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (320,240) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (320,180) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (176,144) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (160,120) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (160,90) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> Video capture was requested but no device was found amongst 1 devices
> IntConstraint 1, min 320, max 1280, exact -1, ideal 1280
> IntConstraint 2, min 180, max 720, exact -1, ideal 720
> MediaConstraint 5 of type 4
> RealtimeVideoCaptureSource::bestSupportedSizeAndFrameRate failed supporting
> constraints 1280 720 30.000000
> VideoPreset of size (2304,1536) and type 2
> VideoPreset frame rate range [2.000000, 2.000000]
> VideoPreset of size (2304,1296) and type 2
> VideoPreset frame rate range [2.000000, 2.000000]
> VideoPreset of size (1920,1080) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset of size (1600,896) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset of size (1280,720) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset of size (960,720) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset of size (1024,576) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset of size (800,600) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset of size (864,480) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset of size (800,448) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (640,480) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (640,360) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (432,240) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (352,288) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (320,240) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (320,180) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (176,144) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (160,120) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> VideoPreset of size (160,90) and type 2
> VideoPreset frame rate range [5.000000, 5.000000]
> VideoPreset frame rate range [7.500000, 7.500000]
> VideoPreset frame rate range [10.000000, 10.000000]
> VideoPreset frame rate range [15.000000, 15.000000]
> VideoPreset frame rate range [20.000000, 20.000000]
> VideoPreset frame rate range [24.000000, 24.000000]
> VideoPreset frame rate range [30.000000, 30.000000]
> Video capture was requested but no device was found amongst 1 devices
> IntConstraint 1, min 320, max 1280, exact -1, ideal 1280
> IntConstraint 2, min 180, max 720, exact -1, ideal 720
> MediaConstraint 10 of type 4

[youenn fablet]

In bool RealtimeMediaSource::supportsSizeAndFrameRate, we select width, height and frameRate independently and then try to apply them jointly.
If it fails jointly, we are failing, but we should not with ideal constraints.

[Philippe Normand]

Created attachment 402875 [details]
WIP

This crude patch works:

Starting MiniBrowser.
RealtimeVideoCaptureSource::bestSupportedSizeAndFrameRate failed supporting constraints 1280 720 30.000000
VideoPreset of size (2304,1536) and type 2
VideoPreset frame rate range [2.000000, 2.000000]
VideoPreset of size (2304,1296) and type 2
VideoPreset frame rate range [2.000000, 2.000000]
VideoPreset of size (1920,1080) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset of size (1600,896) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset of size (1280,720) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset of size (960,720) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset of size (1024,576) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset of size (800,600) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset of size (864,480) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset of size (800,448) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (640,480) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (640,360) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (432,240) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (352,288) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (320,240) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (320,180) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (176,144) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (160,120) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]
VideoPreset of size (160,90) and type 2
VideoPreset frame rate range [5.000000, 5.000000]
VideoPreset frame rate range [7.500000, 7.500000]
VideoPreset frame rate range [10.000000, 10.000000]
VideoPreset frame rate range [15.000000, 15.000000]
VideoPreset frame rate range [20.000000, 20.000000]
VideoPreset frame rate range [24.000000, 24.000000]
VideoPreset frame rate range [30.000000, 30.000000]

[youenn fablet]

Created attachment 403353 [details]
Patch

[Philippe Normand]

Nice, I confirm this works here on Linux in Jitsi. I'd give a r+ but you didn't ask for it :)

[youenn fablet]

(In reply to Philippe Normand from comment #40)
> Nice, I confirm this works here on Linux in Jitsi. I'd give a r+ but you
> didn't ask for it :)

Here it is!

[Philippe Normand]

Comment on attachment 403353 [details]
Patch

Thanks, Youenn :)

[EWS]

Committed r263844: <https://trac.webkit.org/changeset/263844>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 403353 [details].

[Philippe Normand]

Works on Safari TP as well, btw :)