Overlaying text on video with required angle using FFMPEG -

-

i trying overlay text on video using ffmpeg. able overlay text bellow command.

ffmpeg -i input1.mp4 -filter_complex "[0:v]transpose=2[anticlockwiserotated];[anticlockwiserotated]drawtext=fontfile=../../public/fonts/roboto-regular-webfont.ttf: text='test text':x=100: y=50: fontsize=36: fontcolor=white:[textapplied];[textapplied]transpose=1" output_video.mp4

it allowing me overlay horizontally or vertically only.

but want append angle 45 degrees.

for if modify command as

ffmpeg -i input1.mp4 -filter_complex "[0:v]rotate=45*pi/180[anticlockwiserotated];[anticlockwiserotated]drawtext=fontfile=../../public/fonts/roboto-regular-webfont.ttf: text='test text':x=100: y=50: fontsize=36: fontcolor=white:[textapplied];[textapplied]rotate=315*pi/180" output_video.mp4

by getting overlay video as:

enter image description here

because in first rotating video 45 degrees, appending text , bringing original position. loosing borders.

please suggest me best way overlay text required angle on video.

thanks in advance.

basic method generate text on blank canvas, alpha layer text, rotating result , overlaying on main video.

in command below, a should replaced angle. co-ordinates drawtext used in overlay instead. depending on length of text, of may clipped if you've rotated anticlockwise. check , adjust y offset accordingly.

ffmpeg -i input1.mp4 -filter_complex          "color=black:100x100[c];          [c][0]scale2ref[ct][mv];          [ct]setsar=1,drawtext=fontfile=../../public/fonts/roboto-regular-webfont.ttf:              text='test text':fontsize=36:fontcolor=white,split[text][alpha];          [text][alpha]alphamerge,rotate=a:ow=rotw(a):oh=roth(a):c=black@0[txta];          [mv][txta]overlay=x='min(0,-h*sin(a))+100':y='min(0,w*sin(a))+50':shortest=1"       output_video.mp4

Comments

Post a Comment

Popular posts from this blog

sql - invalid in the select list because it is not contained in either an aggregate function -

-
i can't figure out rewrite sql statement avoid error below msg 8120, level 16, state 1, line 26 column 'staffmember.staffmemberid' invalid in select list because not contained in either aggregate function or group clause. sql statment select (select [dbo].[udf_readstaffmemberbasic](sm.staffmemberid) xml path ('staffmembersummary'), root ('items'), type ), count(sm.staffmemberid) totalresults, ceiling(cast(count(sm.staffmemberid) decimal)/ @pagesize) totalpages staffmember sm inner join staffmembertoadditionalrole ar on sm.staffmemberid = ar.staffmemberid (sm.firstname '%' + @name + '%' or sm.surname '%' + @name + '%') , (@floorid null or sm.floorid = @floorid) , (@directorateid null or sm.directorateid = @directorateid) , (@additionalroleid null or ar.additionalroleid = @additionalroleid) order sm.staffmemberid offset @page * @pagesize rows fe...
Read more

Angularjs unit testing - ng-disabled not working when adding text to textarea -

-
i trying test angularjs component using karma, mocha, power-assert. have textarea , button in component, button disabled based on length of text in textarea. when run component in browser works perfectly. can't figure out how test functionality. here's bit of code. inquiryform.js function inquiryform($scope) { // plan add logic here } angular.module('myapp').component('inquiryform', { controller: inquiryform, controlleras: 'inquiryform', templateurl: 'inquiryform.html' }); inquiryform.html <div class="contact"> <div>thanks contacting us.</div> <form> <textarea ng-model="inquiryform.inquirytext" name=""></textarea> <input type="submit" value="send" ng-disabled="!inquiryform.inquirytext.length"> </form> </div> inquiryformtest.js describe('inquiry form ', () => { let $r...
Read more

How to start daemon on android by adb -

-
can me please, head swollen... i trying run daemon on android emu/device command: adb -s <device_name> shell su -c /dir/daemon <port_number> but nothink happens, , no errors! if do: adb -s <device> shell and form shell cmdline: su -c /dir/daemon <port_number> than work fine. try use shell-script , run: adb -s <device_name> shell sh su -c /dir/script.sh <port_number> and try generate script qt code port number , use: adb -s <device_name> shell sh su -c /dir/script.sh but not helped... problem if enter adb shell previous run daemon - work. problem on different device/emu/iso_image different command format not work. example: adb -s <device_name> shell su -c /dir/daemon <port_number> // work @ emu, not @ iso and vice: adb -s <device_name> shell su -c "/dir/daemon <port_number>" // work @ iso etc. everybody can answer what's matter? sorry english adb shell su -c ...
Read more