[MEncoder-users] Unplayable flv movies

[Ade]

Thanks for the quick reply Reimar.

On Wed Aug 29 13:09 , ReimarDöffinger
	<Reimar.Doeffinger at stud.uni-karlsruhe.de> sent:

> Hello,
> On Wed, Aug 29, 2007 at 12:36:33PM +0100, Ade wrote:
>> An example file is here:
>> http://67.19.246.210/flv/810567956-1.flv
>>mencoder command line was:
>> mencoder -ofps 15 810567956-1.wmv -of lavf -lavfopts format=flv -ovc  
>> lavc -lavcopts  
>> vcodec=flv:autoaspect:vbitrate=300:vqmin=2:vqmax=31:vme=5:mbd=1:subq=5:keyint=250  
>> -af resample=22050:0:0,channels=2 -oac mp3lame -lameopts  
>> cbr:br=64:aq=2:highpassfreq=-1:lowpassfreq=-1 -o 810567956-1.flv
>
> I don't believe you that this was the commandline used for the sample
> file.
> Or can you explain how this could end up in the sample file with above
> command:
> "
> Video stream:  791.730 kbit/s  (98966 B/s)  size: 1959532 bytes  19.800
> secs  497 frames
>
> Audio stream:   64.000 kbit/s  (7999 B/s)  size: 157988 bytes  19.749
> secs
> ===============
> Opening video decoder: [dmo] DMO video codecs
> Creating new registry
> DMO dl^@A at I8^@^@^@^@s VO Optimizations 0 1
> DMO dll might use previous sample when requested
> GetOutput r=0x0   size:1244160  align:1
> StreamCount r=0x0  1  1
> Decoder supports the following formats: YV12 YUY2 UYVY YVYU RGB8 RGB555
> RGB565 RGB24 RGB32
> "
Hmm, I can see the bitrates don't match at all for the video compared to  
the cmdline.

Anyway, further to my other discussion on the ffmpeg list I completely  
cleaned my system of old av libraries and recompiled from scratch.

In answer to your query I re-ran from the commandline the above  
(previously it was run from a batchfile) and once again produced the 2.1MB  
file here: http://67.19.246.210/flv/mencoder.flv
...but this time it plays fine through martijndevisser's flv player!

I have no answer as to what happened to the previous one, but that cmd was  
lifted from my batchfile. The only difference is the cleanse and recompile  
of the binaries. It seems odd that the size of the file is so similar. If  
the bitrate was far lower wouldn't the file be much smaller??

If you can shed anymore light on how those two files differ it would put  
my mind at ease. Also if you could point me at any analysis tools perhaps  
I can look myself to save you the trouble.

Many thanks for the help,
Ade

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