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GUACAMOLE-346: Playback must take into account that seeking is asynchronous.

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This commit is contained in:
Michael Jumper
2017-07-15 16:12:21 -07:00
parent b325eb8139
commit 23cf840ba6
1 changed files with 21 additions and 19 deletions
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40
guacamole-common-js/src/main/webapp/modules/SessionRecording.js
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@@ -415,32 +415,34 @@ Guacamole.SessionRecording = function SessionRecording(tunnel) {
var continuePlayback = function continuePlayback() { var continuePlayback = function continuePlayback() {
// Advance to next frame // Advance to next frame
seekToFrame(currentFrame + 1); seekToFrame(currentFrame + 1, function playbackSeekComplete() {
// If frames remain after advancing, schedule next frame // If frames remain after advancing, schedule next frame
if (currentFrame + 1 < frames.length) { if (currentFrame + 1 < frames.length) {
// Pull the upcoming frame // Pull the upcoming frame
var next = frames[currentFrame + 1]; var next = frames[currentFrame + 1];
// Calculate the real timestamp corresponding to when the next // Calculate the real timestamp corresponding to when the next
// frame begins // frame begins
var nextRealTimestamp = next.timestamp - startVideoTimestamp + startRealTimestamp; var nextRealTimestamp = next.timestamp - startVideoTimestamp + startRealTimestamp;
// Calculate the relative delay between the current time and // Calculate the relative delay between the current time and
// the next frame start // the next frame start
var delay = Math.max(nextRealTimestamp - new Date().getTime(), 0); var delay = Math.max(nextRealTimestamp - new Date().getTime(), 0);
// Advance to next frame after enough time has elapsed // Advance to next frame after enough time has elapsed
playbackTimeout = window.setTimeout(function frameDelayElapsed() { playbackTimeout = window.setTimeout(function frameDelayElapsed() {
continuePlayback(); continuePlayback();
}, delay); }, delay);
} }
// Otherwise stop playback // Otherwise stop playback
else else
recording.pause(); recording.pause();
});
}; };