FLV joining possible?

[quantass]

Is there a simple app i can use to join 2 or more .FLV files. They have the same frame rate, dimensions, etc. I dont want any reprocessing of the file, just a clean join. Surprisngly i've found this to be very difficult to find; to me joinging means stripping the headers off files 2 and onward and modifying file 1's header to reflect the new video frames. Maybe im missing something when it comes to FLV, whereas every other format seems to do it the correct way. Then again maybe im just finding crappy flv joiners.

Thanks

[Baldrick]

I haven't not seen any such easy tool yet.

You could use flv extract, https://forum.videohelp.com/topic334748.html#1738560 , no conversion in the joining but I have no idea how you would multiplex it back from the avi to flv without conversion.

[Placio74]

You can try latest Avidemux build.

Of course if...

... They have the same frame rate, dimensions, etc. ...

And maybe soon Movica...

[Baldrick]

You can try latest Avidemux build.

It worked with a flv clip from youtube and Media Player Classic identifies the runtime correct. I will see if it works in a flash media player also.

[Baldrick]

It worked also. Avidemux is the ultimate toooooool.

[Placio74]

It worked also. Avidemux is the ultimate toooooool.

Yes. :P

I'm try Movica 0.6.1.5.

Beta 0.6:
...
New formats that are now supported
- Flash Video - using the open source tool flvtool
- RealMedia Video - using rmeditor from Real
...

Not see .flv extension in Join (Select file to join), but i'm add files manually.
Possible success (not for all FLV's).

[Seraph]

I have tried using Movica to do this

But it doesn't regonise FLV files on my hard drive

Any ideas?

[Placio74]

I have tried using Movica to do this

But it doesn't regonise FLV files on my hard drive

Any ideas?

Latest beta 0.6.2.1?

[Seraph]

I have version 0.6.1.5 - it says this is the most recent?

Where does version 0.6.2.1 come from?

[Placio74]

...
Where does version 0.6.2.1 come from?

Are you kidding?
Videohelp.com > Tools > Movica.
Or http://sourceforge.net/project/showfiles.php?group_id=169161

[Seraph]

Yep, ok, I've got that new version working now.

However, the Movica Player doesn't want to play newly joined videos, although I can play them on other flv players.

[Placio74]

...
However, the Movica Player doesn't want to play newly joined videos, although I can play them on other flv players.

Unfortunately Movica used WMP (DirectShow) to play.
You have installed FLV Splitter and ffdshow (with turn-on FLV1 and VP6F)?

[Seraph]

Yes, I have.

I can probably live with not be able to play my flvs in Movica.

However, more irritating, is that when playing my joined flv in FLVPLayer, the controls only work for the FIRST of the joined videos.
So you can't forward beyond the first video of the joined file - thus the time line only works for the first video of the joined file.

Any ideas why?

[Seraph]

bump.

[Baldrick]

Have you tried join with latest avidemux, http://mulder.dummwiedeutsch.de/home/?page=projects#avidemux ? Same problem or?

[Seraph]

I haven't

Can't seem to find a guide for 'joining flvs' for avidemux

Movica joins the vids fine - it just doesn't let me control the whole combined file.

[Seraph]

bump

[Placio74]

...
However, more irritating, is that when playing my joined flv in FLVPLayer, the controls only work for the FIRST of the joined videos.
So you can't forward beyond the first video of the joined file - thus the time line only works for the first video of the joined file.

I'm confrim for Flash Player and VLC.
Exclude FLV Splitter + ffdshow and some DirectShow player.

After join files in Avidemux - OK.
After join files in Movica and later remux used FFmpeg or Avidemux - OK.

Can't seem to find a guide for 'joining flvs' for avidemux

Simple.
Download latest Avidemux build.
Open first file,
File > Append next file,
choose container (Format) FLV,
Video & Audio is default Copy,
Save (type name new file and extension).

[Seraph]

Ok, got Avidemux to join now, and Avidemux fixes the Movica problem I mentioned above.

But, Avidemux has serious problems synchronising the sound, which runs 2-3 secs too late!

[Placio74]

...
But, Avidemux has serious problems synchronising the sound, which runs 2-3 secs too late!

Yes. But, it's concerns FLV with VFR (variable frame rate) - not all FLV's.
Unfortunately, at this moment...

[Seraph]

ok, so no way around this then?


Any idea about the 'controls' problem in Movica?

[Placio74]

Any idea about the 'controls' problem in Movica?

I'm look into output file.
Movica (FLVTool) leave both headers and not change metadata info (play time, ...).
Well, after remux used FFmpeg (from command line) or Avidemux (but possible problems with VFR) stay only one header and change metadata.
Flash Player just read play time from metadata (not calculate) from first header.

[Seraph]

Is there an easy way then to change the Movica headers/metadata?, bearing in mind, Im not good at technical IT stuff!

[Placio74]

Use FLV Knife (GUI for FLVTool).
(Can use FLV Knife to cut FLVF's.)



FLV Splitter + ffdshow + DirectShow player = OK,
MPLayer = OK,
Flash Player = OK,
VLC = fail, can't play this file .


Well, Movica it's still beta and support for FLV is fresh.
I'm think it's bug - Movica use FLVTool too.
Waiting for next release...

[Seraph]

I tried FLV knife - but like others have reported, it asked for a missing file

To be honest, I'm a bit out of my depth with headers/metadata - I don't really understand it.

Guess I'll stick with Movica.

[Placio74]

I'm see new version Movica.
Unfortunately, still problem with correct metadata.

---

FLV Merge - it's simple command line tool.

FLVMerge.exe 1.flv 2.flv

Output file - merge.flv
And... metadata not correct.

At this site i'm find FLV2MKV (can join FLV's and mux to MKV) - it's mix FLV Extract and mkvmerge.

---

Other...
Instead FLV Knife can use FLV MetaData Injector.
(It work for me - Movica or FLV Merge > FLV MetaData Injector.)

At this site i'm find FLV MetaData Viewer.

And some other...
Latest VirtualDub can use API input plugins.
At this moment exist plugins for: MPEG-2, WMV, QuickTime (MOV, MP4, 3GP) and FLV.
VD + FLV plugin = can open FLV and recompress or only save to AVI.
(VD not support VFR.)
http://forums.virtualdub.org/index.php?&act=ST&f=7&t=14639

[movica]

Greetings from Movica.

Stumbled on this thread quite by accident and learnt of the trouble with the flv metadata. This is a problem for flv players. The directshow approach should not create problem in players in MPC, WMP, Movica, etc.

Have released a version of Movica today that will fix the problem for joins. Edits of flv were already updating the metadata.

Although I will now try and monitor this forum for Movica issues, please do not hesitate to file such problems on the Movica tracker on Sourceforge.

Movica will not detect this version automatically till Nov 14.

[Placio74]

Greetings. :P

Have released a version of Movica today that will fix the problem for joins. Edits of flv were already updating the metadata.

Confirmation, fixed.

This is a problem for flv players.

Hmm... not only - VLC.
But after used latest version Movica - no problem.

Thanks!

Probably some odd problems with slider (from first joined part to next) in SMPlayer.

[sdsumike619]

I just tried using Movica, with ffdshow and flvsplitter installed. And it won't open my FLV file =(

[snookie51]

I have joined quite a few flv files with considerable success combining the use of 2 command line utilities - flvmerge.exe and flvtools.exe. Although flvmerge alone will enable you to join flv files, it however does not check the integrity of the flv files to be joined. So, if any of the flv files has a flaw, the resultant merged file will likely not be able to play to its end. Another notable setback of flvmerge is its inability to readjust the timecode to the combined length of the video. To overcome these shortfalls, you will have to use flvtool2 which not only allows you to check file integrity but also corrects the timecode problem that is generated by flvmerge.

The entire procedure I use to combine flv files is as follows. It is a bit cumbersome but does produce very good results:

• 1. First, copy and paste flvmerge.exe and flvtool2.exe into the folder containing flv files to be joined.
  2. Enter Windows Command Line interpreter, ie Run followed by cmd and Enter.
  3. Change directory (CD) to the flv folder.
  4. Use flvtool2 to check integrity of flv files to be joined: Flvtool2 -D video1.flv. Repeat this for remaining flv files.
  5. Now join the flv files using Flvmerge: flvmerge video1.flv video2.flv .... videon.flv. The output video is named merge.flv by default.
  6. Readjust timecode of combined video: flvtool2 -U merge.flv

That's it.
Hope this helps.