[FFmpeg-soc] [soc]: r1641 - libavfilter/TODO

[Vitor]

Hi

Robert Swain wrote:
> Hello,
> 
> On 22 Dec 2007, at 11:43, koorogi wrote:
>> Modified: libavfilter/TODO
>> ====================================================================== 
>> ========
>> --- libavfilter/TODO	(original)
>> +++ libavfilter/TODO	Sat Dec 22 12:43:44 2007
>> @@ -22,9 +21,8 @@ FILTER IDEAS:
>>  - port vhook filters
>>
>>  PROGRAMS:
>> -- make ffmpeg support filters - use filter graphs. allow simple  
>> chains
>> -  specified on the command line.  complex graphs may need a graph  
>> description
>> -  from a file.
>> +- make ffmpeg support filter graphs which can combine multiple  
>> input video
>> +  streams
> 
> Sorry if this is me not paying attention to the mailing lists enough  
> but has specification of graphs via a graph description file been  
> implemented? I definitely think that would be a nice feature. (c.f.  
> Avisynth)

Graphs are implemented, but it's not completely hooked at ffmpeg.c yet. 
If you do something like ffmpeg -vfilters graphfile=a.desc -i in1.avi -i 
in2.avi output.avi it will create one different graph for each input 
which cannot be linked together. You can't yet use the overlay filter to 
  add a logo, for example...

-Vitor