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<scxml datamodel="ecmascript">
<script src="http://uscxml.tk.informatik.tu-darmstadt.de/scripts/dump.js" />
<script>
//<![CDATA[
function clone(item) {
if (!item) { return item; } // null, undefined values check
var types = [ Number, String, Boolean ],
result;
// normalizing primitives if someone did new String('aaa'), or new Number('444');
types.forEach(function(type) {
if (item instanceof type) {
result = type( item );
}
});
if (typeof result == "undefined") {
if (Object.prototype.toString.call( item ) === "[object Array]") {
result = [];
item.forEach(function(child, index, array) {
result[index] = clone( child );
});
} else if (typeof item == "object") {
// testing that this is DOM
if (item.nodeType && typeof item.cloneNode == "function") {
var result = item.cloneNode( true );
} else if (!item.prototype) { // check that this is a literal
if (item instanceof Date) {
result = new Date(item);
} else {
// it is an object literal
result = {};
for (var i in item) {
result[i] = clone( item[i] );
}
}
} else {
// depending what you would like here,
// just keep the reference, or create new object
if (false && item.constructor) {
// would not advice to do that, reason? Read below
result = new item.constructor();
} else {
result = item;
}
}
} else {
result = item;
}
}
return result;
}
//]]>
</script>
<datamodel>
<data id="modelDir" />
<data id="requests">{}</data>
</datamodel>
<state id="start">
<onentry>
<log expr="modelDir" />
</onentry>
<invoke type="osgconvert" id="osgvonvert.frame">
<param name="threads" expr="1" />
<finalize>
<script>
requests[_event.data.context].job.renderedFrames++;
</script>
<!-- osgconverter will copy its send request for the reply so these are still available -->
<send target="#_ffmpeg" event="render.frame">
<param name="frame" expr="_event.data.content.bmp" />
<param name="context" expr="_event.data.context" />
</send>
<if cond="requests[_event.data.context].job.renderedFrames >= requests[_event.data.context].job.totalFrames">
<send target="#_ffmpeg" event="render.end">
<param name="context" expr="_event.data.context" />
</send>
</if>
</finalize>
</invoke>
<invoke type="ffmpeg" id="ffmpeg">
<finalize>
<script>
// dump(_event);
</script>
<send target="#_parent" event="render.done">
<param name="context" expr="_event.data.context" />
<param name="movie" expr="_event.data.movie" />
<param name="mimetype" expr="_event.data.mimetype" />
<param name="filename" expr="_event.data.filename" />
</send>
<script>
// free up job in requests
requests[_event.data.context] = undefined;
</script>
</finalize>
</invoke>
<state id ="idle">
<!-- <onentry>
<script>
print("Invokers:");
dump(_invokers['ffmpeg']);
</script>
</onentry> -->
<transition event="http.post" target="idle" cond="
_event.data.pathComponent.length == 2 &&
_event.data.pathComponent[1] === 'movie'">
<!--
Something to encode just arrived.
Interpolate pose information and send each frame to the osg converter.
The finalize of the osgconverter will send the images to ffmpeg whose
finalize will trigger the response.
-->
<script>
//<![CDATA[
dump(_event);
var pathDelim = ':'; // we need to flatten directories - this will seperate them in filenames
// store event
var job = {};
job.event = _event;
job.framesPerSec = 25;
job.lengthInSec = _event.data.content.data.movieLength;
job.format = _event.data.content.data.format;
job.height = _event.data.content.data.height;
job.width = _event.data.content.data.width;
job.keyFrames = _event.data.content.data.frames;
job.frames = [];
job.totalFrames = job.lengthInSec * job.framesPerSec
job.renderedFrames = 0;
// sanitize
if (job.height % 2)
job.height++;
if (job.width % 2)
job.width++;
// calculate overall relative length
var totalRelLength = 0;
for (var index in job.keyFrames) {
totalRelLength += job.keyFrames[index].relFrameLength;
}
var framesToRelLength = job.totalFrames / totalRelLength;
// create frames
for (var kfIndex = 0; job.keyFrames[kfIndex]; kfIndex++) {
var nextPose = false;
if (job.keyFrames[kfIndex + 1]) {
nextPose = job.keyFrames[kfIndex + 1].pose;
}
var keyFrame = job.keyFrames[kfIndex];
keyFrame.file = keyFrame.imagePath.substr(1);
keyFrame.modelFile = keyFrame.file + ".osgb";
keyFrame.modelFile = keyFrame.modelFile.replace(/\//g, pathDelim);
keyFrame.modelFile = modelDir + '/' + keyFrame.modelFile;
var currentPose = keyFrame.pose;
var thisFrames = Math.round(keyFrame.relFrameLength * framesToRelLength);
var startTransitionAt = Math.round((100 - keyFrame.relTransitionLength) * 0.01 * thisFrames);
var transitionFrames = thisFrames - startTransitionAt;
//print("---------------------\n");
//print("lengthInSec: " + job.lengthInSec + "\n");
//print("totalFrames: " + job.totalFrames + "\n");
//print("thisFrames for " + kfIndex + ": " + thisFrames + "\n");
//print("startTransitionAt for " + kfIndex + ": " + startTransitionAt + "\n");
//print("transitionFrames for " + kfIndex + ": " + transitionFrames + "\n");
for (var frameIndex = 0; frameIndex < thisFrames && job.frames.length <= job.totalFrames; frameIndex++) {
var frame = clone(keyFrame);
if (frameIndex > startTransitionAt && nextPose) {
var transitionProgress = (frameIndex - startTransitionAt) / transitionFrames;
frame.pose.pitch += (nextPose.pitch - frame.pose.pitch) * transitionProgress;
frame.pose.roll += (nextPose.roll - frame.pose.roll) * transitionProgress;
frame.pose.yaw += (nextPose.yaw - frame.pose.yaw) * transitionProgress;
frame.pose.x += (nextPose.x - frame.pose.x) * transitionProgress;
frame.pose.y += (nextPose.y - frame.pose.y) * transitionProgress;
frame.pose.z += (nextPose.z - frame.pose.z) * transitionProgress;
frame.pose.zoom += (nextPose.zoom - frame.pose.zoom) * transitionProgress;
//print("#########################\n");
//print("Transition at: " + frameIndex + " \ Progress: " + transitionProgress + "\n");
//print("Interpolated pose:\n")
//dump(frame.pose);
}
job.frames.push(frame);
}
}
job.totalFrames = job.frames.length;
requests[_event.origin] = {};
requests[_event.origin].job = job;
//]]>
</script>
<send target="#_ffmpeg" event="render.start" idlocation="requests[_event.origin].sendId">
<param name="context" expr="_event.origin" />
<param name="format" expr="requests[_event.origin].job.format" />
<param name="width" expr="requests[_event.origin].job.width" />
<param name="height" expr="requests[_event.origin].job.height" />
</send>
<foreach array="requests[_event.origin].job.frames" item="frame" index="index">
<send target="#_osgvonvert.frame">
<param name="format" expr="'bmp'" />
<!-- param name="dest" expr="'/Users/sradomski/Desktop/ctrl/' + index + '.bmp'" / -->
<param name="source" expr="frame.modelFile" />
<param name="pitch" expr="frame.pose.pitch" />
<param name="roll" expr="frame.pose.roll" />
<param name="yaw" expr="frame.pose.yaw" />
<param name="zoom" expr="frame.pose.zoom" />
<param name="x" expr="frame.pose.x" />
<param name="y" expr="frame.pose.y" />
<param name="z" expr="frame.pose.z" />
<param name="width" expr="requests[_event.origin].job.width" />
<param name="height" expr="requests[_event.origin].job.height" />
<param name="autorotate" expr="frame.pose.autorotate" />
<param name="context" expr="_event.origin" />
</send>
</foreach>
</transition>
<transition event="http.get" target="idle" cond="
_event.data.pathComponent.length == 3 &&
_event.data.pathComponent[1] === 'movie' &&
_event.data.pathComponent[2] === 'codecs'">
<log expr="_invokers['ffmpeg']" />
<send target="#_parent" event="send.codecs">
<param name="context" expr="_event.origin" />
<param name="codecs" expr="_invokers['ffmpeg']" />
</send>
</transition>
</state>
</state>
</scxml>
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