Per MS documentation, there is a MPEG 1 and 2 Video Decoder bundled with Windows 8 which is compatible with Media Foundation. I have written a Source Reader for DVD, MPEG2 and MPEG1 and started testing.
In my pipeline, right around the MFEnumEx, I get a reference to an instance of a decoder found on the system. As soon as I try to activate the object I receive SL_E_LICENSE_FILE_NOT_INSTALLED. I encountered this message before when I was writing a wrapper for MPEG4. MPEG 4 encoder gave me the same thing.
Based on Google searches, I ended up at with link and directed the users to run the command: DISM /Online /Cleanup-Image /RestoreHealth
It seems this fixed the MPEG 4 encoder issue. Not sure what is happening. I ran TopoEdit.exe and tried adding Microsoft MPEG Video Decoder and the node fails with the same error.
I am wondering if anyone encountered the same issue? Any resolutions? I really don't want to write a decoder at this point.
I tested this on another PC at work and I am getting the same result. Both OS are 8.1 64bit.
Well, I found the issue.
http://www.infoworld.com/article/2616896/microsoft-windows/update--windows-8-won-t-be-able-to-play-dvds.html
Per the link above starting with Windows 8, DVD (MPEG 2 Decoder) is not included by default. It is a purchasable feature. This means no default DVD playback support for free. We purchased a copy for Surface Pro that we have at the company and it cost 10 bucks. Not a big deal. I wish they mentioned this in their documentation. It also appears that the feature is not purchasable/addable in 8.X Enterprise. Windows Media Center which contains the decoder was dropped from both Enterprise and Server 2012.
Related
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.
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.
What is the way to create a new player for that kind of extensions?
"Linktivity stopped support on this app, http://linktivity.com even disappeared from the web..."
It seems they were bought out by Mitel Software so now everything is under the Mitel brand name.
"I just want to find a way to manipulate this file extension, a new good player for mobile and computer"
To open/edit those .lrec files with modern software you'll have to look at their :
Collaboration products.
Unified Communication products.
I tried :
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).
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.
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.
Also any of your existing AVI files should be converted with FFmpeg to MP4.
You can download FFmpeg for Windows here (just the big blue button, ignore other options).
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:
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.
After some research, I found that Media Player Classic can play .lrec files. I don't know, if this helps you a bit.
For a own video player for your company, you would need the encoding infos or a decoder directly from Inter-Tel since they own the licences, without it you can't create one.
Edit: Deprecated info see comments.
I'm trying to sideload Lollipop onto my Nexus 5 from the OTA zip file.
At this point, the adb recognizes the device after I plug in the USB cable, and spits out the serial number.
As I understand the instructions for sideloading, once I get to this point, I just need to reboot into recovery mode, (which works as expected) and then bypass the red exclamation point icon using "volume up and power" simultaneously. That works too.
At the point where the screen on the Nexus 5 says, "Now send the package you want to apply to the device with 'adb sideload <filename>' I type "adb sideload + the OTA image file name", which I renamed for convenience". The file is in the platform-tools folder.
At which point the command window reports: error: device not found
So... the device is seen by the adb, but somehow is no longer found after the device reboots in recovery mode.
I've replaced all the usb drivers, enabled usb debugging and developer mode on the Nexus device. I've tried this in windows 7 and also in Linux (both from the android sdk tool kit and from an installation of Eclipse). I'm unable to get the adb to talk to the Nexus 5.
I read the android-windows usb inf file, and there is no section specifically for the Nexus 5, but I added a line under the "generic android" section with USB\VID_18D1&PID_D001 as has been suggested elsewhere for people who couldn't get the OS to see their nexus at all. My issue is not that the OS can't see it... and the adb sees it, too, until I try to sideload the OTA file in Recovery Mode.
Anyone else having this issue, or better yet... any ideas on how to solve it?
Thanks
It turns out that I had not enabled USB debugging before I tried to do this using Linux Ubuntu / Eclipse / Android SDK. So my problem was really a windows USB driver problem, I guess (though I can't be sure, since windows did see the device until I tried to transfer the file. Maybe that message was really conveying a permissions problem, too...)
I rebooted into Ubuntu and tried again and was able to transfer the update file. The only hitch I encountered at that point was to issue the sideload command as root. I didn't do that the first time I tried it, and got a message about lacking permissions.
I suspect the posted reply with a link to a universal USB inf file would have worked, but, though I'm grateful for the tip, I can't testify to that, since I managed to transfer the file without Windows.
Thanks to all who looked at this and especially to Alex P., for posting a possible solution. FW
IW, I'm glad to have finally been able to do this, but for anyone struggling to get Lollipop ahead of the OTA update... well, it's nice, but hardly worth a lot of effort.
Based on what I read here, in order to install CF version 2 on my handheld device, I should copy over one of the cab files here:
...but which one?
The device in question is a Symbol 3090, which currently has only CF version 1.0.3316.00 (1.0 SP2) installed. The OS version of the device is 05.00.1400
The device CPU is presumably 'ARMV4I' as a similar device (Motorola 3190) says that it is equipped with such.
UPDATE
Based on what I see here when I click "this link" here:
-- OR -- If you have Windows Mobile 5 or newer on your device, click this link and save the file to the desktop of your computer.
...it seems "NETCFv2.wm.armv4i.cab" is probably the best choice.
Any refutations?
UPDATE 2
I copied the file I reckoned to be the one, and clicked it on the device, but:
What in Sam L. Clemens' illustrious memory is going on here?!?
UPDATE 3
I then copied over the other file from the link above, which was slightly different (2.12MB as opposed to 2.14MB, for one thing), and tried to run it, and got the same err msg as above.
UPDATE 4
Trying to install from the last link, I see:
UPDATE 5
Actually, it turns out that what I might really need is to install CF version 1 after a cold boot of the device...but I don't know if version 1 of CF is still available. That's the only version the existing .exe will run on, but my PC only has cab files for versions 2 and 3.5...???
UPDATE 6
In the most recent version of the .exe (builds and compiles, but won't run on either device), it has three, count 'em three mscorlibs in its References area; the versions are:
1.0.5000.0
2.0.0.0
3.5.0.0
They all have the same public key token (the same as shown in the screen shot)
The only other multi-reference is System, which has both version 2 and 3.5
AND, below System.Xml, there are three coredll.dlls, albeit spelled differently:
coredll.dll
CoreDll.dll
CoreDll.DLL
(no info for any of them...???)
UPDATE 7
I copied NETCFv2.wce4.ARMV4.cab to the 3090.
I 2-clicked it on the device, but got this:
And so, I retreated (selected "No").
Thus continue unabated the travails of an accidental handheld developer.
UPDATE 8
The project is set to Framework Version == v2.0, Platform == Windows CE, Target Device == Windows Mobile 6 Classic Emulator (one of the few emulator choices I have), and the output shows that it is ARMV4i that is being deployed:
Deploying '%CSIDL_PROGRAM_FILES%\Microsoft SQL Server Compact Edition\v3.5\Devices\wce500\ARMV4i
\sqlce.ppc.wce5.armv4i.CAB'
Deploying '%CSIDL_PROGRAM_FILES%\Microsoft SQL Server Compact Edition\v3.5\Devices\wce500\ARMV4i
\sqlce.repl.ppc.wce5.armv4i.CAB'
Deploying '%CSIDL_PROGRAM_FILES%\Microsoft SQL Server Compact Edition\v3.5\Devices\wce500\ARMV4i
\sqlce.dev.enu.ppc.wce5.armv4i.CAB'
Deploying 'C:\Program Files (x86)\Motorola EMDK for .NET\v2.8\SDK\Smart Devices\wce500\armv4i\symbol.all.arm.cab'
And when I run the .exe in the emulator, it fails with, "Error - An unexpected error has occurred in Platypus.exe
Select Quit and restart this program, or select Details for more information.
This application requires a newer version of the MS .NET Compact Framework than the version installed on this device."
Selecting the "Details" button augments the mental anguish with, "TypeLoadException
This application requires a newer version of the MS .NET Compact Framework than the version installed on this device."
Assuming your are using the WinCE 4.2 version of the 3090 (it comes in 4.2 and 5.0), you should proceed with the install using NETCFv2.wce4.ARMV4.cab. "The program is not compatible..." message is a warning only, and not a very smart one. There is even a way to edit the cab to remove that warning if you wanted to, though my memory fails me on the exact way to do it. I've had to do it to allow a silent install before (otherwise the nag screen gets in your way).
First you need to figure out what version of CE you are running. You can find this by going to System Properties. Also while you are in System Properties note what processor you are running ( arm, mips ...). If you are running windows ce 4.2 or higher you will pick a cab file out of the wce400 folder. If you are running windows CE 5.0 or higher you will pick a cab file out of the wce500 folder. Note you can't install .net 2.0 on windows ce 4.1 or lower, according to Microsoft documentation, however, I have noticed that the minimum version setting on the cab files is 4.0, so you might be able to hack it.
Like I said before on also the System Properties page is the type of processor you are using. From that select the appropriate sub-folder in either wce400 or wce500. In most of the folders for each processor there should be only one cab file. If there is more than one cab file see if the file name contains wm for windows mobile, wce for windows ce, or ppc for pocket PC and pick the one most appropriate for you.
You can also take the guess work out of this whole process by creating an ini file with the fallowing text and using ceappmgn.exe to pick and install the right cab file for you.
[CEAppManager]
Version = 1.0
Component = NETCF
[NETCF]
Description = .NET Compact Framework v2.0
CabFiles=wce400\armv4\NETCFv2.ppc.armv4.cab,wce400\armv4\NETCFv2.wce4.ARMV4.cab,wce400\mipsii\NETCFv2.wce4.MIPSII.cab,wce400\mipsiv\NETCFv2.wce4.MIPSIV.cab,wce400\sh4\NETCFv2.wce4.sh4.cab,wce400\x86\NETCFv2.wce4.x86.cab,wce500\armv4i\NETCFv2.wm.armv4i.cab,wce500\mipsii\NETCFv2.wce5.mipsii.cab,wce500\mipsiv\NETCFv2.wce5.mipsiv.cab,wce500\sh4\NETCFv2.wce5.sh4.cab,wce500\armv4i\NETCFv2.wce5.armv4i.cab
I am making a general question since I am a developer and I have no advance experience on video elaboration. I have to preparare a web application with the purpose to allow video files upload on our company server and then video elaboration by server, on user command. The purpose of the web application is to allow to the user to make some elaboration on video depending on user action launch from the web app:
(server has to ) convert video in different format(mp4, flv...)
extact keyframes from video and saves them in jpeg format
possibility to extract audio from video
automatic control of quality audio & video (black frames,silences detection)
change scene detection and keyframe extraction
.....
This what's my bosses wanted from the web based application (with the server support obviously), and I understand only the first 3 points of this list, the rest for me was arabic....
My question is: Which is the best and fastest server side application for this works, that can support multiple batch video conversions, from command line (comand line for php-soap-socket interaction or something else..)?
Is suitable Adobe Media Server for batch video conversion?
Which are adobe products that can be used for this purpose?
Note: I have experience with Indesign Server scripting programing (sending xml with php and soap call...), and I am looking to something similiar for video elaboration.
I will appreciate any answers.
THANKS ALL
I suggest you start with the open source project FFmpeg. You can call the program from the command line and via a series of arguments specify the desired output types, thumbnails, etc.
As an aside, when you start looking around at Video related projects (MediaShare for example) you will find they are all using FFmpeg for their video processing.
as Nathan suggested, FFMPEG is the first choice. Also you can check MEncoder
Just to elaborate:
1) (server has to ) convert video in different format(mp4, flv...)
both FFMPEG and mencoder do this well
2) extact keyframes from video and saves them in jpeg format
as I know it's impossible using command-line interface of FFMPEG, not sure about mencoder. However they can save all frames as separate images
3) possibility to extract audio from video
both FFMPEG and mencoder do this well
4) automatic control of quality audio & video (black frames,silences detection)
you need to code this, using FFMPEG libraries or mencoder
5) change scene detection and keyframe extraction
it's not clear what your boss imposes here
I tried lot of videos converting in server side using advance Xuggler API libraries.
Xuggler is a free open-source library for Java developers which can be used to uncompress,
manipulate, and compress recorded or live video in real time. Xuggler uses the very
powerful FFmpeg media handling libraries under the hood, essentially playing the role of a
java wrapper around them. It is the easy way to uncompress, modify, and re-compress any
media file (or stream) from Java.
WebLinks : 1) http://www.xuggle.com/ -official website
2) http://www.javacodegeeks.com/2011/02/introduction-xuggler-video-
manipulation.html - example
OK so Silverlight 4 is adding support for capturing from microphones (and webcams), however for this facility to be useful (in my case at least) I'd need to upload this captured data to a server to save.
The AudioCaptureDevice will record PCM audio on the client, and as we all know PCM is not the most efficient encoding... the data would be too large to upload uncompressed.
Ideally, I could encode this PCM stream to AAC right on the client, then upload that compressed stream to the server.
Something like this library, may be useful. However it doesn't support AAC.
(I'm choosing AAC because (unlike MP3) it is royalty-free to encode, and is supported by popular PMP devices.)
Any thoughts out there on the best way to accomplish this? All options are on the table: full-trust, Google Gears, etc...
Thanks for any help!
There's an audio codec out there called Speex AND Alden Torres ported the SPEEX algorithm to C#. So you have a full managed audio encoder. Here's the relevant blog post where he shows how to encode the audio from the mic with SPEEX. Read also the comments.
As the answer mentioned above Speex is a voice codec which is not really appropriate if you want to use it for music.
However, if you are still interested in Speex on Silverlight than you should take a look at NSpeex which is a port of an earlier version of Speex to C# and it also offers a Silverlight library.
I need to record a music in Silverlight (e.g. from the line-in) and save it on the server. It must be in a good quality (not like SPEEX). I will try to use a lame encoder on the client. It needs the lame_enc.dll that can be accessed by p-invoke. I will test if it is possible from the silverlight.
Do you know some alternatives? Maybe a good stream server (is it possible with wowza)?
You should know that AAC encoding is patent restricted as well. Check out the Wikipeadia article on it. If you want a free format, you should look into Vorbis or FLAC (or Speex).
If you're on a Windows 7 or Server 2008 R2 box, you might be able to use the SDK to encode AAC (http://msdn.microsoft.com/en-us/library/dd742785(v=VS.85).aspx).
Also, since you're forcing the client to do a bunch of work anyway, why not just zip it before you upload it -- I'm not a Silverlight person, so maybe that's not possible?