| <!DOCTYPE html> |
| |
| <html> |
| <script> |
| |
| var result; |
| |
| function success(keySystemAccess) { |
| result = 'supported'; |
| } |
| |
| function failure(error) { |
| result = error.name; |
| } |
| |
| function isKeySystemSupported(keySystem) { |
| // requestMediaKeySystemAccess() checks for video/mp4 support, so this |
| // is only available if proprietary codecs are enabled. |
| navigator |
| .requestMediaKeySystemAccess( |
| keySystem, |
| [ |
| { |
| videoCapabilities : |
| [ {contentType : 'video/mp4; codecs=avc1.4D000C'} ] |
| } |
| ]) |
| .then(success, failure); |
| } |
| |
| function areProprietaryCodecsSupported() { |
| var video = document.createElement('video'); |
| return video.canPlayType('video/mp4; codecs=avc1'); |
| } |
| |
| </script> |
| </html> |
