Joining wmv files

[RedWolf]

If anybody can't solve the problems below but knows of another way to join wmvs, please let me know.

Here's the situation. I'm trying to use hjsplit to join multiple wmvs together. I appended the necessary numbers to the end of their extensions (e.g. myfile.wmv.001). Everything appears to work fine (that is, I can locate the first .001 file and wait a minute for it to say it has finished joining). The final file is approximately 500 MB, like it should be, however! when I open the final file, the video is equivalent to only the last wmv file joined, i.e. the file is 500 MB but I can only watch the last minute or so (It should be about 16 minutes long)

I have tried joining only the first two files together, but that gives the same result: the file size is accurate, but the video itself only shows the last wmv added.

The reason I'm using hjsplit instead of Windows Movie Maker is because WMM doesn't work either for more unknown reasons, telling me to check if the original source files are still available, the saving location is still available, and there is enough free disk space, even though the source files haven't moved, the saving location should be available, and there is more than enough free disk space.

[hotaru]

mencoder?

i'm pretty sure this should do it:

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mencoder -oac copy -ovc copy -of lavf -lavfopts format=asf myfile.wmv.001 myfile.wmv.002 -o myfile.wmv

basically your problem is like this:
you have several small boxes (asf container files) with small blocks (video and audio streams) in them. you want to combine the small blocks into one big block and then put it into a single large box. using hjsplit (or cat or the windows "copy" command with "+") is like gluing the small boxes together. the result is about the same size as what you want, but not what you want.

mencoder knows enough about the formats involved to take the streams out of their containers and combine them, and then make a new container to put the result in.

[mrbaggins]

Download and try WMM2?

[RedWolf]

hotaru:
That sounds like it may work. I downloaded mplayer from their site, but I can't seem to find mencoder anywhere... where would I find that?

mrbaggins:
I am using WMM2. Sorry for the misunderstanding.

[hotaru]

hotaru:
That sounds like it may work. I downloaded mplayer from their site, but I can't seem to find mencoder anywhere... where would I find that?

it should be included with mplayer. look for mencoder.exe in the same folder as mplayer.exe.

[Emu*]

Won't WMM unencode and reencode everything, rather than just gluing the containers together? JPEG fuzz etc?

[RedWolf]

hotaru:
That sounds like it may work. I downloaded mplayer from their site, but I can't seem to find mencoder anywhere... where would I find that?

it should be included with mplayer. look for mencoder.exe in the same folder as mplayer.exe.

Nope, not there. The one I downloaded from here was the second one under Source and Binaries, in case you want to have a look yourself.

[hotaru]

hotaru:
That sounds like it may work. I downloaded mplayer from their site, but I can't seem to find mencoder anywhere... where would I find that?

it should be included with mplayer. look for mencoder.exe in the same folder as mplayer.exe.

Nope, not there. The one I downloaded from here was the second one under Source and Binaries, in case you want to have a look yourself.

ah, i guess they changed some things since the last time i downloaded it... try the third or fourth one.

[RedWolf]

hotaru:
That sounds like it may work. I downloaded mplayer from their site, but I can't seem to find mencoder anywhere... where would I find that?

it should be included with mplayer. look for mencoder.exe in the same folder as mplayer.exe.

Nope, not there. The one I downloaded from here was the second one under Source and Binaries, in case you want to have a look yourself.

ah, i guess they changed some things since the last time i downloaded it... try the third or fourth one.

Ah, ok, you were right, I've both mplayer.exe and mencoder.exe now. Do I have to have the folder in a particular place or with a particular name? because the command line still isn't recognizing "mencoder".

[hotaru]

Do I have to have the folder in a particular place or with a particular name? because the command line still isn't recognizing "mencoder".

you have to either have it in some folder that's in your "PATH" environment variable (you can set the path variable in control panel, how to do it depends on what version of windows you're using)... or you can just specify the whole path... for example, if the folder you put it in is C:\Program Files\MPlayer, you'd do this:

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"C:\Program Files\MPlayer\mencoder -oac copy -ovc copy -of lavf -lavfopts format=asf myfile.wmv.001 myfile.wmv.002 -o myfile.wmv

also, i just downloaded that third one to a windows machine here (because it has a much faster processor than any of my *nix machines) to convert some videos and it seems to have some issues with libavformat that the fourth one doesn't have, so you may need to use that one...

[RedWolf]

Alright, excellent, it works perfectly. Thank you so much for your help.

[rajuk]

I need to combine two wmv files in my project. I am getting an exception here. I know last reply was years back . I still believe the person who succeeded in getting this done will receive my post and provide me a solution. Thanks in advance


C:\Documents and Settings\rajuk\Desktop\mencoder>mencoder -oac copy -ovc copy -o
f lavf -lavfopts format=asf 1.wmv.001 2.wmv.001 -o 6p.wmv
MEncoder 1.0rc1-3.4.2 (C) 2000-2006 MPlayer Team
CPU: Pentium(R) Dual-Core CPU E5400 @ 2.70GHz (Family: 6, Model: 23, Step
ping: 10)
CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
parse error at line 22
success: format: 0 data: 0x0 - 0x2a09
ASF file format detected.
[asfheader] Video stream found, -vid 1
ASF: No video stream found.
Video stream is mandatory!

Exiting...


with warm regards
raju

[phlip]

Two points: first, can you play the two files separately with mplayer? It's looking like it might be having trouble reading them. Also, I'm not sure if you can use -oac copy and -ovc copy when you're working with multiple sources... it probably depends on the codec being used. You may need to pick an actual encoder.