[FFmpeg-devel] [PATCH 00/12] I added text to bitmap subtitle conversion functionality!

[Paul B Mahol]

On Tue, May 3, 2022 at 6:13 PM Traian Coza <traian.coza at gmail.com> wrote:

> I added the possibility of converting text-based subtitle tracks (such as
> subrip or ass) to bitmap-based subtitle tracks (such as dvd_subtitle).
>
> I accomplished this by using libass, and basically using the code from
> vf_subtitles.c to render text subtitles and store the images in the
> AVSubtitle structure.
>
> Of course, this functionality will only work when ffmpeg is configured
> with --enable-libass.
>
>
Sorry but i think this needs to be in libavfilter instead of libavcodec.

And for libavfilter one needs to add proper, not hacky, subtitle support to
library.



> Traian Coza (12):
>   Implemented text to bitmap subtitles!
>   Render only when necessary
>   Retreive width and height from video stream!
>   Initialize ass library only once!
>   Cleaned up
>   Wrote proper headers
>   Close libass after using
>   Added standard headers
>   Rearranged files, all tests are passing!
>   Rearranged files, all tests are passing!
>   Added logging
>   Added more logging
>
>  fftools/Makefile         |   2 +
>  fftools/ffmpeg.c         |  35 ++++-
>  fftools/text_to_bitmap.c | 300 +++++++++++++++++++++++++++++++++++++++
>  fftools/text_to_bitmap.h |  37 +++++
>  libavcodec/avcodec.h     |   9 ++
>  5 files changed, 382 insertions(+), 1 deletion(-)
>  create mode 100644 fftools/text_to_bitmap.c
>  create mode 100644 fftools/text_to_bitmap.h
>
> --
> 2.34.1
>
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