[FFmpeg-devel] [PATCH] imlib2's rgb.txt

[Ramiro Ribeiro Polla]

Michael Niedermayer wrote:
> Hi
>
> On Mon, Jun 11, 2007 at 01:28:31PM -0300, Ramiro Ribeiro Polla wrote:
>   
>> Ramiro Ribeiro Polla wrote:
>>     
>>> Michael Niedermayer wrote:
>>>   
>>>       
>>>> Hi
>>>>
>>>> On Mon, Jun 11, 2007 at 09:06:34AM +0200, V?ctor Paesa wrote:
>>>>   
>>>>     
>>>>         
>>>>> Hi,
>>>>>
>>>>>     
>>>>>       
>>>>>           
>>>>>> Attached patch adds another location for the imlib2 vhook to search for
>>>>>> rgb.txt.
>>>>>> It's a relative path instead of an absolute path, good for Windows,
>>>>>> where X11 isn't installed.
>>>>>>
>>>>>> Even though vhooks should go away soon, it's nice for the next filter
>>>>>> system to support this too, so this patch is also informative for
>>>>>> whoever writes the next imlib2 filter.
>>>>>>       
>>>>>>         
>>>>>>             
>>>>> The patch is also useful for POSIX systems that don't have X11 installed, or
>>>>> have it installed in unusual directories.
>>>>>     
>>>>>       
>>>>>           
>>>> would it not make more sense to allow the user to specifiy the file path?
>>>>
>>>>   
>>>>     
>>>>         
>>> Yes, it would.
>>> Also, it would make sense to add hex value support like drawtext.
>>>
>>> How about this:
>>> - add -rgb parameter to specify rgb.txt file
>>>       
>
> probably ok
>
>
>   
>>> - remove the 2 default paths for rgb.txt (ok?)
>>>       
>
> i think some default should be kept somewhere
>
>
>   
>>> - copy ParseColor (from drawtext.c), or put function in some shared 
>>> file. (does lav* have a function for parsing hex colors?)
>>>   
>>>       
>> Answering my own question, ffmpeg.c does that in opt_pad_color.
>> Can it be moved to a library as av_parse_color 
>>     
>
> yes
> though please look at AVOption & av_eval() maybe we can use some of that
> code it would be a cool to be able to rather pass an expression which would
> change the color over time ...
>
>
>   

This is interesting. Used with output_example's video, you get quite a 
psychedelic output =).
Patch attached (and then another commit to reindent).

Ramiro Polla
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