Fire event when everything is loaded and player is really ready

[jasoncorso]

User request to have an event fired when all data is loaded from the server and video can really begin playing (with annotations).

[benjaminpkane]

Bump. Labels are not rendering for single frame media fragments. These asynchronous calls I've linked below are likely part of the problem. I will look into this more when time permits. Labels are being flagged as processed after issuing the asynchronous functions. There is no guarantee that the labels are actually loaded with the current approach.

player51/src/js/renderer.js

Line 317 in 05fc2a1

waitUntil(() => (typeof(this.canvasWidth) != 'undefined' &&

player51/src/js/renderer.js

Line 349 in 05fc2a1

waitUntil(() => (typeof(this.canvasWidth) != 'undefined' &&

The following labels will not be rendered when given the clip range [0, 0].

{
    "filename": "sample.mp4",
    "frames": {
        "1": {
            "frame_number": 1,
            "objects": {
                "objects": [
                    {
                        "label": "vehicle",
                        "bounding_box": {
                            "top_left": {
                                "x": 0.5090277777777777,
                                "y": 0.49027777777777776
                            },
                            "bottom_right": {
                                "x": 0.5506944444444445,
                                "y": 0.5666666666666667
                            }
                        },
                        "index": 1,
                        "frame_number": 1,
                        "attrs": {
                            "attrs": [
                                {
                                    "type": "eta.core.data.CategoricalAttribute",
                                    "name": "color",
                                    "value": "silver",
                                    "confidence": 1
                                }
                            ]
                        }
                    }
                ]
            }
        }
    }
}

[lethosor]

I'd suggest basing any testing/fixes on the cleanup branch - there are some fixes there for edge conditions, maybe related to that