The VideoLAN Forums

You have prolly found some bugs. Could you share your sample file and your transcoding options, so I can open trac tickets? OK, I couldn't find a link to the original file, and uploading 50 MB will not make anyone happy, but I've taken a 7 second clip (473 kB) and it has essentially the same proble...

There is tool called Mediainfo which should tell you more about mediafiles. Mediainfo tells me this: Audio ID : 1 Format : AAC Format/Info : Advanced Audio Codec Format version : Version 4 Format profile : LC Format settings, SBR : No Codec ID : 40 Duration : 7mn 58s Bit rate mode : Variable Bit ra...

When playing the video in VLC does "Tools >> Codec Information..." read the same info/values, and in the "Statistics" tab are the bitrates around the same? Arite. I had already deleted the 1GB video, so I decided to recreate it using the same command line string and the same ver...

Bitrates are too high or wrong codecs are used.

The sout string I specified on the command line contains these bitrate/codec parameters:

• vcodec=mp4v
• vb=800
• acodec=mp4a
• ab=128

Maybe version 1.0.0 has defected codecs or some bitrate defaults I can't override?

VLC 1.0.0-git builds can be found in the "trunk" directories of the nightlies. The set the sout-mux-caching value just add e.g.: --sout-mux-caching 5000 Where 5000 is the caching value in ms. Arite. Well, the new version (1.0.0-git-20090316-2305) did it, sort of. First of all, adding the ...

Well the Steam Output section of the GUI has be reworked for 1.0.0 and (as of a few days/weeks ago) didn't work too well - I think it has improved now though. If it doesn't then yes, try the commandline. The syntax: vlc -vvv INPUT --sout "SOUT_STRING" Should work fine (where SOUT_STRING i...

Worth trying a nightly build anyway: http://nightlies.videolan.org/ Sout might not work very well though ATM - try via commandline if GUI does work properly with transcoding. Arite. OK, I tried with the latest nightly (0.9.9-rc2-20090321-0104) and got the same result: audio only. I also tried with ...

main error: cannot add a new stream (unsupported while muxing to this format). You can try increasing sout-mux-caching value Sounds like a bug. Have you tested 1.0.0 test builds? No, do you think that would help? I mean, has the team solved a bug like this for the 1.0.0 builds? If nobody has submit...

^ Those messages are from FFmpeg presumably - post VLC's messages ("Tools >> Messages..." and set "Verbosity Level" to 2).

Arite.

Yes, I posted the log from VLC two posts above that one.

Well, I can tell you that another ffmpeg-based encoder managed to transcode the file. With the parameters ffmpeg -f mp4 -b 500k -r 30 -acodec libfaac -ab 128k -ar 48000 -ac 2 -s 480x270 this gave an output video that works fine. The output of the process was: Seems stream 0 codec frame rate differs ...

Open Tools -> Messages... (set Verbosity to 2) before you try the conversion and when it is done, paste the messages here. Here is the log. It's quite big -- I hope it scrolls. qt4 debug: MRL passed to the Sout: C:\Infile.flv qt4 debug: Sout mrl :sout=#transcode{vcodec=mp4v,vb=800,scale=1,width=480...

I have a flash (flv) video file that plays fine in VLC media player (version 0.9.4 on Windows XP). When I try to convert it to an mp4 file (with MPEG-4 encoding), I get a file that has only audio. No corrupted video or anything, it's really just audio: the file is about 2 MB instead of the original ...

That helped, thanks.

I can't get the controls to appear during fullscreen viewing. Version 0.9.4, Windows XP. Strange thing is, they were there the very first time I viewed a flv file. I clicked a few buttons, it all worked, then I clicked the "turn off sound" thing and the controls disappeared and haven't com...