[FFmpeg-user] momentary overlay using ffmpeg

[tarun singhal]

On Mon, May 19, 2014 at 1:54 PM, tarun singhal <tsinghal18 at gmail.com> wrote:

>
> On Mon, May 19, 2014 at 1:32 PM, tarun singhal <tsinghal18 at gmail.com>wrote:
>
>> Hi Group,
>>
>> When using overlay or drawtext filter, I see that it applies overlay/text
>> over complete length of video.
>> I have a requirement where I want to put an overlay or draw text on
>> source video, but the overlay should appear only from lets says start time
>> code: 00:02:00 and should remain there till 00:02:10
>>
>> So, basically having overlay only for 10 seconds in the source video?
>>
>> Is this possible to do with ffmpeg?
>>
>>
>> Regards,
>> Tarun Singhal
>>
>>
>>  I was able to figure out the command to do Draw text for momentarily-
> Below is the sample command might come handy. Working to get Overlay
> working like this
>
> ffmpeg -i output.mpg -s 640x360 -filter_complex
> "drawtext=fontfile=stocky.ttf:text=test:timecode='00\:00\:00\:00':r=25:fontsize=50:x=(w-tw)/2:y=h-(2*lh):fontcolor=black:enable='if(gte(t,10),lte(t,20))'"
> -acodec copy -r 30 check.mpg
>
>
> Couldnt found for Overlay filter :( . enable doesnt works with overlay
filter. any help?