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Apply PlayReady workaround for all Windows browsers #129

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Apply PlayReady workaround for all Windows browsers #129

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15 changes: 13 additions & 2 deletions src/utils/playready-workaround.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -19,6 +19,17 @@ import {
} from './mp4-tools';
import type { LevelDetails } from '../loader/level-details';

function isWindows(): boolean {
const uaData = (navigator as { userAgentData?: { platform?: string } })
.userAgentData;
if (uaData?.platform) {
return uaData.platform.toLowerCase() === 'windows';
}
return (
!!navigator.platform && navigator.platform.toLowerCase().includes('win')
);
}

/**
* Applies a PlayReady DRM workaround to level details.
*
Expand Down Expand Up @@ -168,7 +179,7 @@ export function fakeEncryption(initSegment: Uint8Array) {
// not clear why this is necessary on Xbox One, but it seems to be evidence
// of another bug in the firmware implementation of MediaSource & EME.
// TODO: needs more tests
if (navigator.userAgent.match(/Edge?\//)) {
if (isWindows()) {
newEntries.push(encEntry);
newEntries.push(entry);
} else {
Expand Down Expand Up @@ -266,7 +277,7 @@ export function fakeEncryption(initSegment: Uint8Array) {
// patched one, otherwise video element throws following error:
// CHUNK_DEMUXER_ERROR_APPEND_FAILED: Sample encryption info is not
// available.
if (navigator.userAgent.match(/Edge?\//)) {
if (isWindows()) {
return appendUint8Array(modifiedInitSegment, initSegment);
} else {
return modifiedInitSegment;
Expand Down
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