Plain Green image returned on some android devices #331
Description
Some android devices (Infinix phones in particular) only get a plain green/black image returned as base64Data in Webcam.snap.
The issue as it turns out was caused by canvas.toDataURL. The way around it was first use canvas.toBlob, then use a FileReader to read the blob as readAsDataURL (ie base64). In brief, in snap, I replaced
user_callback(
user_canvas ? null : canvas.toDataURL('image/' + params.image_format, params.jpeg_quality / 100 ),
canvas,
context
);
with
if(!user_canvas){
canvas.toBlob(function(data){
var reader = new FileReader();
reader.readAsDataURL(data);
reader. {
user_callback(reader.result,canvas,context);
}
}, 'image/' + params.image_format, params.jpeg_quality / 100);
}else{
user_callback(null,canvas,context);
}
This issue has forced me to revisit every userMedia code i every wrote and update it to drop canvas.toDataURL