AS3 - 嵌入式 SWF 视频显示 TotalFrames == 0

发布于 2024-09-14 23:00:43 字数 1241 浏览 4 评论 0原文

我有一部 1 分钟长的电影，我想将其编译成 AS3 项目。该电影一开始是 MOV 格式，因此我使用 FFMpeg 将其转换为 FLV，然后再次使用 FFMpeg 将 FLV 转换为 SWF。

我使用 Embed 元数据将此影片嵌入到 AS3 二进制文件中：

[Embed(source="1.swf")]
private var _Vid:Class;

我有一个容器 Sprite，该影片将添加到其中。在添加之前，我将嵌入的影片投射为影片剪辑：

var vid:Object = new _Vid();
return vid as MovieClip;

当我将生成的影片剪辑添加到舞台时，它立即开始播放，并且似乎播放得很好。但是，当我检查影片剪辑的 TotalFrames 属性时，它返回 0。并且影片剪辑似乎没有响应对 stop 或 gotoAndStop 的调用。

我通过将影片嵌入到 Flash IDE 中的 SWF 中，然后以相同的方式嵌入结果，得到了同样的行为，所以看起来我将其添加到舞台的方式有些不正常。有什么想法吗？

编辑：根据产品的要求，as3 电影无法从外部文件加载视频。它必须被编译进去，这样播放的结果.swf就可以完全独立运行，而不必依赖其他外部文件。

编辑 2：经过进一步检查，产生的 MovieClip 实例

[Embed(source="1.swf")]
private var _Vid:Class;

var vid:Object = new _Vid();
return vid as MovieClip;

有一个属于 Loader 类的子对象，并且该子对象没有子对象。我尝试将孩子直接投射为 MovieClip 但无济于事。

编辑3：从我正在阅读的此处和此处，NetStream 对象的 10.1 api 公开了一个方法称为追加字节。我仍然需要进一步研究这一点，但我可以将 .flv 文件作为八位字节流嵌入，并将字节手动提供给 Net Stream 对象来播放视频。我将在几天后发布我的测试结果...

原文

I've got this 1 minute long movie that I want to compile into an AS3 project. The movie started out in MOV format, so I used FFMpeg to convert it to FLV, then again with FFMpeg from FLV to SWF.

I'm embedding this movie into the AS3 binary by using Embed metadata:

[Embed(source="1.swf")]
private var _Vid:Class;

I've got a container Sprite that this movie gets added to. Before it's added in, I cast the embedded movie as a MovieClip:

var vid:Object = new _Vid();
return vid as MovieClip;

When I add the resulting movie clip to the stage, it begins playing immediately and seems to play fine. However, when I check the totalFrames property of the movie clip, it returns 0. And the movie clip doesn't seem to respond to calls to stop or gotoAndStop.

I get this same behavior from embedding the movie into an SWF in the Flash IDE then embedding the result in the same manner, so it seems something is out of whack with the way I'm adding it to the stage. Any thoughts?

EDIT: As a requirement of the product, the as3 movie cannot load the video from an external file. It must be compiled in, so the resultant .swf that does the playing can operate completely on its own without having to rely on other external files.

EDIT 2: Upon further inspection, the MovieClip instance that results from:

[Embed(source="1.swf")]
private var _Vid:Class;

var vid:Object = new _Vid();
return vid as MovieClip;

has one child object which is of class Loader, and that child has no children. I tried casting the child directly as MovieClip but to no avail.

EDIT 3: From what I'm reading here and here, the 10.1 api for the NetStream object exposes a method called appendBytes. I still need to look further into this, but I could embed the .flv file as an octet stream and feed the bytes manually to the Net Stream object to play the video. I'll post the result of my tests in a few...

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才能让你更想念 2024-09-21 23:00:43

我最终将视频嵌入为二进制数据：

[Embed(source="1004.flv", mimeType="application/octet-stream")]

然后使用 NetStream.appendBytes() 将视频提供给连接到 Video 对象的 NetStream。这工作得非常好，并且 NetStream 可以暂停和重播。

I ended up embedding the video as binary data:

[Embed(source="1004.flv", mimeType="application/octet-stream")]

Then using NetStream.appendBytes() to feed the video to a NetStream that's hooked up to a Video object. This works beautifully, and the NetStream can be paused and replayed.

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