创建用于移动设备的二进制文件扩展名阅读器 | 创建用于移动设备的二进制文件扩展名

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问题描述

这是一个古老的二进制文件扩展名，实际上是由Inter-Tel Web会议软件创建的视频文件.它包含录制视频和语音音频的屏幕，还可以捕获会议期间的键盘聊天记录，与会者和文档管理器窗口.它可以与Inter-Tel Collaboration Player一起播放，Inter-Tel Collaboration Player是Web会议软件包附带的独立应用程序.

It is an ancient binary file extension, actually a video file created by Inter-Tel Web Conference software. It contains a screen recording video and voice audio, and also can capture the keyboard chat log, attendees and the document manager window during a conference. It can be played with Inter-Tel Collaboration Player, a standalone application included with the Web Conference software package.

我现在正在尝试找到一种在移动设备上播放这些文件的方法，尽管Inter-Tel Collaboration Player提供了以AVI格式导出文件的功能，但我想知道如何为此制作命令行脚本，因为应用程序在Windows 7,8,10上存在很多问题，并且没有Mac OS版本.

What I am trying to do now is finding a way to play these files on mobile, although Inter-Tel Collaboration Player offers exporting the files in AVI format, I want to know how to make a command line script for that because the application have lots of problems with Windows 7,8,10 and don't have a Mac OS version.

为此类扩展程序创建新播放器的方法是什么?

What is the way to create a new player for that kind of extensions?

推荐答案

似乎它们被 Mitel Software 买断了，所以现在一切在Mitel品牌下.

It seems they were bought out by Mitel Software so now everything is under the Mitel brand name.

要使用现代软件打开/编辑那些 .lrec 文件，您必须查看它们的内容:

To open/edit those .lrec files with modern software you'll have to look at their :

协作产品.
统一通信产品.

Collaboration products.
Unified Communication products.

我尝试过:

与他们联系只是为了仔细检查事实，但是他们希望与销售人员进行实时电话交谈，因此这是不可行的.我本来会是假的潜在客户，但您可以提供一个实际问题(带有背景详细信息)，以查看他们是否可以解决.
还为Android下载了> MiCollab应用 ，但甚至在启动任何操作之前都需要登录详细信息(因此，仅检查PC中的 .lrec 文件是否会在Android中打开是没有进展的.)

To contact them just to double-check facts but they expect a realtime phone conversation with a salesperson so it wasn't an option. I'd be a fake potential customer, but you can provide a real-world issue (with background details) to see if they can solve it.
Also downloaded for Android the MiCollab app but it needs login details before even starting anything (so no progress to just check if an .lrec file from PC would open within Android).

导出视频以进行移动播放:
我已经尝试过桌面软件.不幸的是，它不接受外部命令，因此无法制作一个包含多个lrecs并返回多个AVI的脚本.

Export videos for mobile playback :
I've tried the desktop software. Unfortunately it does not accept external commands so there is no way to make a script that takes multiple lrecs and gives back multiple AVI.

唯一的选择是从 .lrec 字节中提取帧，并使用FFmpeg之类的工具将图像(因为似乎是作为帧进行图像抓取)组合成一个.MP4视频.然后可以在移动设备上播放MP4.

The only option is to extract frames from .lrec bytes and use a tool like FFmpeg to combine the images (since appears to do image grabs as frames) into one .MP4 video. MP4 is then playable on mobile devices.

所有现有的AVI文件也应使用FFmpeg转换为MP4.

Also any of your existing AVI files should be converted with FFmpeg to MP4.

您可以在此处下载 用于Windows的FFmpeg (蓝色按钮，请忽略其他选项.

You can download FFmpeg for Windows here (just the big blue button, ignore other options).

将ffmpeg.exe文件复制到诸如c:\ffmpeg之类的文件夹中，然后将avi放在该文件夹中.
现在打开命令提示符并执行cd C:\ffmpeg进入文件夹，然后键入:
ffmpeg -i filename.avi filename.mp4(将文件名替换为输入和输出的首选)
如果知道如何做，只需在控制面板PATH设置中包含ffmpeg.exe路径，即可从任何文件夹访问FFmpeg(无需将文件移动到其自己的文件夹).

Copy the ffmpeg.exe file to some folder like c:\ffmpeg and put your avi's there.
Now open Command prompt and do cd C:\ffmpeg to reach folder, then type :
ffmpeg -i filename.avi filename.mp4 (replace filename with preferred for input and output)
If you know how, just include ffmpeg.exe path to Control Panel PATH settings so that FFmpeg can be accessed from any folder (no need to move files to its own folder).

PS:
我仍在研究如何获取帧，这是一种不符合规范的格式(字节顺序为Big Endian，但输入值填充为Little Endian，然后不确定是否每两或四个反转一次字节cos，就像这样混合在一起，像素字节本身似乎具有压缩能力，但它不是JPEG，更像ZIP或类似的东西).到目前为止，仅已确认的字节用于视频宽度和视频高度.如果 .lrec 仅包含屏幕录像，这似乎是可行的.

PS:
I am still researching how to get the frames it's an akward format without the specs (bytes order is Big Endian but then entry values are filled as Little Endian, then also not sure whether to reverse every two or four bytes cos it's mixed up like that etc and the pixel bytes themselves seem to have compression but it's not JPEG more like ZIP or whatever). Only confirmed bytes so far are for video width and video height. It seems doable though if the .lrec only contains screen recordings.

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