Bug#822555: ffmpeg: please compile with --enable-libtesseract

[Bálint Réczey]

Hi Sebastian,

2016-09-24 21:56 GMT+02:00 Sebastian Ramacher <sramacher at debian.org>:
> Hi
>
> On 2016-09-07 03:33:38, Bálint Réczey wrote:
>> Control: tags -1 confirmed patch
>>
>> Hi Jan,
>>
>> 2016-04-25 12:43 GMT+02:00 Jan Gerber <j at mailb.org>:
>> > Package: ffmpeg
>> > Version: 7:3.0.1-3
>> > Severity: wishlist
>> >
>> > Dear Maintainer,
>> >
>> > FFmpeg 3.0 introduced a new ocr filter that depends on libtesseract.
>> > Would be nice to see this enabled in Debian.
>>
>> I have prepared a patch which may be enough.
>> It needs testing however. Sebastian, what do you think?
>
> I'm not a huge fan of adding more -extra flavors [1], but the patch looks okayish.
> The dh_auto_build-arch override may need to be updated, though.

It seems to still work well since libavfilter is recompiled properly.
The package also works, it performs OCR.

I have tested it using the image and script from here:
http://ffmpeg-users.933282.n4.nabble.com/How-to-use-ocr-filter-td4672454.html

ffprobe -show_entries frame_tags=lavfi.ocr.text -f lavfi -i "movie=img.png,ocr"

One also need to install tesseract-ocr-eng to make it work.

Pushing the commit to ffmpeg.git.

Cheers,
Balint