Overlay while recording video?

Question

Overlay while recording video?

developerandroid123 opened this issue 8 years ago · 18 comments

developerandroid123 commented 8 years ago

Can we add overlay like text,image or video while recording ?

Answer 1 · 2017-06-23T11:00:21.000Z

Yes, please refer to #11

Answer 2 · 2017-06-23T11:05:06.000Z

I am not able to get any hint about overlay from #11

Answer 3 · 2017-11-25T10:02:52.000Z

i also want overlay

Answer 4 · 2017-11-27T01:22:14.000Z

You should search for FFmpeg feature for your need, like overlay.

Answer 5 · 2017-11-28T07:00:21.000Z

i read that documentation and code, now where should is i place it? in resumeRecording() function? im not getting it

Answer 6 · 2017-11-28T09:19:45.000Z

can anyone please help who successfully completed it?

Answer 7 · 2017-11-28T11:01:01.000Z

@CrazyOrr, needs your help
How do i implement following code in this project:

drawtext="fontsize=15:fontfile=FreeSerif.ttf:text=LONG_LINE:y=h-line_h:x=-50*t"

this is drawtext property of ffmpeg, how do i implement this?

after searching i found THIS.
but i dont know where to add this command in this project so that text will be added to video.

Thanks!

Answer 8 · 2017-11-29T01:30:46.000Z

Check out FFmpegFrameFilter used in VideoRecordThread, there are 'transpose' and 'crop' filters used in this project already as examples for you.

Answer 9 · 2017-12-05T05:59:20.000Z

Thanks for your response!!
I see in code, you apply filter like this :

`List<String> filters = new ArrayList<>();`
`String transpose = null;`

`transpose = "transpose=cclock"; //cclock is a filter`
`//then you add filter like this`
`filters.add(transpose);`

`FFmpegFrameFilter frameFilter = new FFmpegFrameFilter(TextUtils.join(",", filters),previewWidth, previewHeight);`

**Can I do same also for adding text? like :**

`List<String> filters = new ArrayList<>();`
`String drawtext = null;`

`drawtext = "drawtext=fontsize=15:fontfile=FreeSerif.ttf:text=LONG_LINE:y=h-line_h:x=-50*t";`
`//then apply text like this`
`filters.add(drawtext);`

`FFmpegFrameFilter frameFilter = new FFmpegFrameFilter(TextUtils.join(",", filters),previewWidth, previewHeight);`

**am I right? please help...**

Answer 10 · 2017-12-05T07:17:12.000Z

UPDATE
In drawtext documentation of ffmpeg they wrote that :

To enable compilation of this filter, you need to configure FFmpeg with --enable-libfreetype.

drawtext

Answer 11 · 2017-12-05T12:58:29.000Z

Yes, according to this, --enable-libfreetype has already been configured for building this FFmpeg library. If not so, try again with the latest version of JavaCV or build it by yourself.

Answer 12 · 2017-12-05T13:27:58.000Z

okay thanks, can you then please help where i place this code, i tried with code that i posted here but it results in force close.

Answer 13 · 2017-12-06T02:30:27.000Z

It crashes with Fatal signal 11 (SIGSEGV), code 1, fault addr 0x18 in tid 24319 now.
Refer to this issue of JavaCV.

Answer 14 · 2017-12-06T09:03:55.000Z

Same error for me and I didn't find any solution there. that issue is for building JavaCV with libfreetype but this project is already configured for that, its a confusion now

Answer 15 · 2017-12-07T07:31:24.000Z

got same error when use :
overlay
error:

android A/libc: Fatal signal 11 (SIGSEGV), code 1, fault addr 0x18 in tid 320 (Thread-24542)

Answer 16 · 2017-12-07T11:19:53.000Z

UPDATE:
I tried it with latest version of JAVACV by changing the version in dependencies and got the same error.
maybe I'm doing some syntax error I think.

Answer 17 · 2017-12-07T15:09:03.000Z

You can try the commands out by using FFmpeg on your computer.

Answer 18 · 2017-12-08T10:49:42.000Z

yes in command line its working fine, I tested in Ubuntu

List<String> filters = new ArrayList<>(); String transpose = null; transpose = "transpose=cclock"; //cclock is a filter //then you add filter like this filters.add(transpose); FFmpegFrameFilter frameFilter = new FFmpegFrameFilter(TextUtils.join(",", filters),previewWidth, previewHeight);