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added ability to sync video with capture #60

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added ability to sync video with capture #60

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83 changes: 53 additions & 30 deletions src/CCapture.js
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Original file line number Diff line number Diff line change
Expand Up @@ -707,22 +707,28 @@ function CCapture( settings ) {
return _performanceTime;
};

function hookCurrentTime() { 
if( !this._hooked ) {
this._hooked = true;
this._hookedTime = this.currentTime || 0;
this.pause();
media.push( this );
}
return this._hookedTime + _settings.startTime;
};

try {
Object.defineProperty( HTMLVideoElement.prototype, 'currentTime', { get: hookCurrentTime } )
Object.defineProperty( HTMLAudioElement.prototype, 'currentTime', { get: hookCurrentTime } )
} catch (err) {
_log(err);
}
if (_settings.syncVideo) {
_settings.syncVideo.pause();
_settings.syncVideo.addEventListener('seeked', _callCallbacks);
}
else {
function hookCurrentTime() { 
if( !this._hooked ) {
this._hooked = true;
this._hookedTime = this.currentTime || 0;
this.pause();
media.push( this );
}
return this._hookedTime + _settings.startTime;
};

try {
Object.defineProperty( HTMLVideoElement.prototype, 'currentTime', { get: hookCurrentTime } )
Object.defineProperty( HTMLAudioElement.prototype, 'currentTime', { get: hookCurrentTime } )
} catch (err) {
_log(err);
}
}

}

Expand Down Expand Up @@ -757,6 +763,12 @@ function CCapture( settings ) {
window.Date.prototype.getTime = _oldGetTime;
window.Date.now = _oldNow;
window.performance.now = _oldPerformanceNow;

if (_settings.syncVideo) {
_settings.syncVideo.removeEventListener('seeked', _callCallbacks);
_settings.syncVideo.play();
_callCallbacks();
}
}

function _updateTime() {
Expand Down Expand Up @@ -847,21 +859,8 @@ function CCapture( settings ) {
}

}

function _process() {

var step = 1000 / _settings.framerate;
var dt = ( _frameCount + _intermediateFrameCount / _settings.motionBlurFrames ) * step;

_time = _startTime + dt;
_performanceTime = _performanceStartTime + dt;

media.forEach( function( v ) {
v._hookedTime = dt / 1000;
} );

_updateTime();
_log( 'Frame: ' + _frameCount + ' ' + _intermediateFrameCount );
function _callCallbacks() {

for( var j = 0; j < _timeouts.length; j++ ) {
if( _time >= _timeouts[ j ].triggerTime ) {
Expand All @@ -886,6 +885,30 @@ function CCapture( settings ) {
} );
_requestAnimationFrameCallbacks = [];

}

function _process() {

var step = 1000 / _settings.framerate;
var dt = ( _frameCount + _intermediateFrameCount / _settings.motionBlurFrames ) * step;

_time = _startTime + dt;
_performanceTime = _performanceStartTime + dt;

media.forEach( function( v ) {
v._hookedTime = dt / 1000;
} );

_updateTime();
_log( 'Frame: ' + _frameCount + ' ' + _intermediateFrameCount );

if (_settings.syncVideo) {
_settings.syncVideo.currentTime += step / 1000;
}
else {
_callCallbacks();
}

}

function _save( callback ) {
Expand Down