The /home/test directory has max righs 0777....
The odd thing is that melt seems to be unable to start processing the video. It
stays on 0 position.
But when I enter 'l" on my keyboard, I go on the next frame with success. melt
goes from 0 to the last frame of the video (correctly calculated my melt). But
still do not generates an output video.
I even tried:
melt colour:red in=0 out=50 -consumer avformat:/home/test/vidred.mpg
s=320x240
... but same result: melt is launched, it stays on 0 position, and no file is
generated!
I spend the whole week looking for a solution. When I finally find it, I can't
even make it work :(
So frustrating!
Le 22 mars 2010 à 16:50, Rob Canning a écrit :
> Brice Vercoustre said :
>> Ok the problem is that melt launch correctly, but the "Current Postiion"
>> stays at 0, and any testme.avi never comes.
>>
>> melt /home/test/video.dv -filter greyscale -consumer avformat:testme.mpeg
>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>> |1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|
>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>> +---------------------------------------------------------------------+
>> | H = back 1 minute, L = forward 1 minute |
>> | h = previous frame, l = next frame |
>> | g = start of clip, j = next clip, k = previous clip |
>> | 0 = restart, q = quit, space = play |
>> +---------------------------------------------------------------------+
>> Current Position: 0
>>
>> (And then nothing happen until I enter "q" for example)
>> (no testme.mpeg in /home/test/ directory)
>
>
>>
>>
>> Do you think I can have a problem with my MLT install on my Ubuntu server?
>
> no clue i am afraid - you have permissions to write to /home/test ?
> rob
>
>>
>> Best Regards,
>> Brice Vercoustre
>>
>>
>> Le 22 mars 2010 à 16:01, Rob Canning a écrit :
>>
>>> Brice Vercoustre said :
>>>> Hi Rob,
>>>>
>>>> Thank you for your help!
>>>>
>>>> I tried your commend (the one at the bottom of this mail) and I still get
>>>> the same screen:
>>>>
>>>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>>>> |1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|
>>>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>>>> +---------------------------------------------------------------------+
>>>> | H = back 1 minute, L = forward 1 minute |
>>>> | h = previous frame, l = next frame |
>>>> | g = start of clip, j = next clip, k = previous clip |
>>>> | 0 = restart, q = quit, space = play |
>>>> +---------------------------------------------------------------------+
>>>> Current Position: 0
>>>>
>>>> On this screen I have to be behind my computer and press "l" or "space" or
>>>> whatever makes melt run... And that's the point: how can I launch the
>>>> command line from a script (.sh or php) SERVER SIDE so that melt can work
>>>> alone and treat the video. In other words, how can I make it work
>>>> automatically?
>>>
>>> no you dont - for example
>>>
>>> melt videos/theapple.avi -filter greyscale -consumer avformat:testme.mpeg
>>> [mpeg1video @ 0x8857d60]interlacing not supported by codec
>>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>>> |1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|
>>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>>> +---------------------------------------------------------------------+
>>> | H = back 1 minute, L = forward 1 minute |
>>> | h = previous frame, l = next frame |
>>> | g = start of clip, j = next clip, k = previous clip |
>>> | 0 = restart, q = quit, space = play |
>>> +---------------------------------------------------------------------+
>>> Current Position: 824
>>>
>>> this will start doing its job without any user interaction.
>>>
>>>
>>>> At the end, where can I found the testme.avi video to publish it for my
>>>> students?
>>>
>>> where you run the script from.
>>>
>>> or like this:
>>> melt videos/theapple.avi -filter greyscale -consumer
>>> avformat:/home/me/path/to/some/dir/testme.mpeg
>>>
>>>>
>>>> Thank you so much ;-)
>>>>
>>>> Best Regards,
>>>> Brice Vercoustre
>>>>
>>>> Le 22 mars 2010 à 14:12, Rob Canning a écrit :
>>>>
>>>>> Brice Vercoustre said :
>>>>>> Hi all,
>>>>>>
>>>>>> I'm currently searching for a server side solution that would be able to
>>>>>> handle picture-in-picture processing (insert a video thumbnail into
>>>>>> another video).
>>>>>>
>>>>>> The purpose of that is to generate educational videos of university
>>>>>> courses with a mix of both the teacher's screencast (main video) and
>>>>>> it's face (thumbnail video).
>>>>>>
>>>>>> I'm looking for a command line app that would let me create such a
>>>>>> video. The melt app really seems to do that, but I'm not sure I
>>>>>> understood the mechanism well. With my terminal, I've been able to
>>>>>> launch melt to do some editing on a video such as:
>>>>>>
>>>>>> melt a.dv -filter greyscale in=0 out=50
>>>>>>
>>>>>> Melt is launched at the 0 frame, I can go from frame to frame... Here is
>>>>>> the result:
>>>>>>
>>>>>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>>>>>> |1=-10| |2= -5| |3= -2| |4= -1| |5= 0| |6= 1| |7= 2| |8= 5| |9= 10|
>>>>>> +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+
>>>>>> +---------------------------------------------------------------------+
>>>>>> | H = back 1 minute, L = forward 1 minute |
>>>>>> | h = previous frame, l = next frame |
>>>>>> | g = start of clip, j = next clip, k = previous clip |
>>>>>> | 0 = restart, q = quit, space = play |
>>>>>> +---------------------------------------------------------------------+
>>>>>> Current Position: 0
>>>>>>
>>>>>>
>>>>>> But I really do not get how I can export the result into a new video. I
>>>>>> did not understood the -consumer logic, and how can I exploit it to save
>>>>>> the result into a new video.
>>>>>
>>>>> for example this:
>>>>>
>>>>> melt a.dv -filter greyscale -consumer libdv:testme.dv
>>>>> melt a.dv -filter greyscale -consumer avformat:testme.avi
>>>>>
>>>>> hth
>>>>>
>>>>> rob
>>>>>
>>>>>
>>>>>>
>>>>>> If I understand that part well, I'm sure I'll find how to make some
>>>>>> picture-in-picture processing.
>>>>>>
>>>>>> Thank you for helping me on this!
>>>>>>
>>>>>> Best Regards,
>>>>>> Brice Vercoustre.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> ------------------------------------------------------------------------------
>>>>>> Download Intel® Parallel Studio Eval
>>>>>> Try the new software tools for yourself. Speed compiling, find bugs
>>>>>> proactively, and fine-tune applications for parallel performance.
>>>>>> See why Intel Parallel Studio got high marks during beta.
>>>>>> http://p.sf.net/sfu/intel-sw-dev
>>>>>> _______________________________________________
>>>>>> Mlt-devel mailing list
>>>>>> [email protected]
>>>>>> https://lists.sourceforge.net/lists/listinfo/mlt-devel
>>>>>>
>>>>> --------------
>>>>> [email protected]
>>>>> rob.goto10.org
>>>>> --------------
>>>>>
>>>>
>>>>
>>>> ------------------------------------------------------------------------------
>>>> Download Intel® Parallel Studio Eval
>>>> Try the new software tools for yourself. Speed compiling, find bugs
>>>> proactively, and fine-tune applications for parallel performance.
>>>> See why Intel Parallel Studio got high marks during beta.
>>>> http://p.sf.net/sfu/intel-sw-dev
>>>> _______________________________________________
>>>> Mlt-devel mailing list
>>>> [email protected]
>>>> https://lists.sourceforge.net/lists/listinfo/mlt-devel
>>>>
>>> --------------
>>> [email protected]
>>> rob.goto10.org
>>> --------------
>>>
>>
>>
> --------------
> [email protected]
> rob.goto10.org
> --------------
>
------------------------------------------------------------------------------
Download Intel® Parallel Studio Eval
Try the new software tools for yourself. Speed compiling, find bugs
proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev
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