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"use strict";
/**
* This test aims to ensure that the media engine playback will recover from a
* crash and keep playing without any problem.
*/
add_task(async function setupTestingPref() {
await SpecialPowers.pushPrefEnv({
set: [
["media.wmf.media-engine.enabled", true],
["media.wmf.media-engine.channel-decoder.enabled", true],
],
});
});
const VIDEO_PAGE = GetTestWebBasedURL("file_video.html");
add_task(async function testPlaybackRecoveryFromCrash() {
info(`Create a tab and load test page`);
let tab = await BrowserTestUtils.openNewForegroundTab(
window.gBrowser,
"about:blank"
);
BrowserTestUtils.loadURIString(tab.linkedBrowser, VIDEO_PAGE);
await BrowserTestUtils.browserLoaded(tab.linkedBrowser);
await playVideo(tab);
info("Ensure video is running via the media engine framework");
await assertRunningProcessAndDecoderName(tab, {
expectedProcess: "Utility MF Media Engine CDM",
expectedDecoder: "media engine video stream",
});
const pidBeforeCrash = await getMFCDMProcessId();
await crashUtilityProcess(pidBeforeCrash);
info("The CDM process should be recreated which makes media keep playing");
await assertRunningProcessAndDecoderName(tab, {
expectedProcess: "Utility MF Media Engine CDM",
expectedDecoder: "media engine video stream",
});
const pidAfterCrash = await getMFCDMProcessId();
isnot(
pidBeforeCrash,
pidAfterCrash,
`new process ${pidAfterCrash} is not previous crashed one ${pidBeforeCrash}`
);
BrowserTestUtils.removeTab(tab);
});
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