Splitting Nellymoser FLV (extracting raw Nelly Moser stream from FLV file)

(http://stream-recorder.com/forum/showthread.php?t=2902)

Splitting Nellymoser FLV (extracting raw Nelly Moser stream from FLV file)

Is there software (free, preferably) that can split FLV videos that have audio encoded with the nellymoser codec?

I know of software that can split FLV video that have MP3 audio, but I'd like to avoid having to convert the audio from live FLV recordings if possible.

Re: Splitting Nellymoser FLV?

What kind of programs have you tried to split flv files?

FLV Extract (Freeware/Windows) ?
Avidemux (Freeware/Windows) ?

Re: Splitting Nellymoser FLV?

So far:

FLVTool (2 or ++, can't recall which)
-I'm probably using it wrong, because I can't get it to work. It just spits out exact duplicates of my input file.

Avidemux
-It can't work with FLV's that use nellymoser audio.

Re: Splitting Nellymoser FLV (extracting raw Nelly Moser stream from FLV file)

There was a program for Linux at google code called nelly2pcm. It was removed from google code in response for compliant received from DMCA. You may try to find it on other web-sites.

nelly2pcm converts an flv sound file to a raw pcm file.

Creating an executable file for nelly2pcm:

Code:

$ tar -xjvf nelly2pcm.tar.bz2

$ cd nelly2pcm

$ make

cc -Wall -c -o nelly2pcm.o nelly2pcm.c

cc -Wall -c -o nelly.o nelly.c

cc -Wall -c -o nelly_tables.o nelly_tables.c

cc -Wall nelly2pcm.o nelly.o nelly_tables.o -lm -o nelly2pcm

Running nelly2pcm

Code:

$ ./nelly2pcm test.flv > test.raw

mono Nellymoser stream with 16-bit samples at 44kHz

This will create a raw NellyMoser sound file with no headers. Moreover it will output the characteristics of the Nellymoser stream that you will need in the next step.

To play this raw file you can use sox (apt-get install sox)

Code:

$ sox -r 44100 -c 1 -2 -s test.raw

If you can play the file (options must be correct), you can use sox to create a wav file which is essentially the same except that it has a header which contains all the settings (e.g. bitrate etc.)

Code:

$ sox -r 44100 -c 1 -2 -s test.raw test.wav

Re: Splitting Nellymoser FLV (extracting raw Nelly Moser stream from FLV file)

Quote:

Originally Posted by Stream Recorder (Post 7410)

Code:

$ tar -xjvf nelly2pcm.tar.bz2

$ cd nelly2pcm

$ make

cc -Wall -c -o nelly2pcm.o nelly2pcm.c

cc -Wall -c -o nelly.o nelly.c

cc -Wall -c -o nelly_tables.o nelly_tables.c

cc -Wall nelly2pcm.o nelly.o nelly_tables.o -lm -o nelly2pcm

Running nelly2pcm

Code:

$ ./nelly2pcm test.flv > test.raw

mono Nellymoser stream with 16-bit samples at 44kHz

Code:

$ sox -r 44100 -c 1 -2 -s test.raw

If you can play the file (options must be correct), you can use sox to create a wav file which is essentially the same except that it has a header which contains all the settings (e.g. bitrate etc.)

Code:

$ sox -r 44100 -c 1 -2 -s test.raw test.wav

I can not download nelly2pcm in google code

if you have nelly2pcm.tar.bz2 , please send me.

Re: Splitting Nellymoser FLV (extracting raw Nelly Moser stream from FLV file)

I can not download nelly from google, Would you like send me ,thanks anyway

Re: Splitting Nellymoser FLV (extracting raw Nelly Moser stream from FLV file)

You can use a VideoCharge Studio for it.

Soft allows split or join any video files (FLV also)!

It can split video withput re-encdoing