From: Stuart Henderson <stu@spacehopper.org>
Subject: Re: graphics/ffmpeg: Fix drawtext filter
To: Alex Tsang <alextsang@live.com>
Cc: "ports@openbsd.org" <ports@openbsd.org>
Date: Tue, 20 May 2025 11:41:00 +0100

ok.

On 2025/05/20 10:28, Alex Tsang wrote:
> Hi Brad, ports,
> 
> After upgrading to OpenBSD 7.7 I notice that the drawtext filter in FFmpeg no
> longer works.
> 
> For example:
> 
> ffmpeg -i input.jpeg -vf "drawtext=fontsize=20:fontcolor=Red:fontfile='/usr/X11R6/lib/X11/fonts/TTF/DejaVuSans.ttf':text='test'" output.jpeg
> 
> The expected behaviour is to generate a new image file output.jpeg with the text
> "test" in red on top-left corner. At the time of writing, running the command
> gives the following error:
> 
> [AVFilterGraph @ 0xe9320c9fc00] No such filter: 'drawtext'
> [vost#0:0/mjpeg @ 0xe9320c9b400] Error initializing a simple filtergraph
> 
> Looking at the manpage of ffmpeg-filters [0], regarding the drawtext filter, it
> says:
> 
> To enable compilation of this filter, you need to configure FFmpeg with
> "--enable-libfreetype" and "--enable-libharfbuzz". To enable default font
> fallback and the font option you need to configure FFmpeg with
> "--enable-libfontconfig". To enable the text_shaping option, you need to
> configure FFmpeg with "--enable-libfribidi".
> 
> In the Makefile, all options are set, except "--enable-libharfbuzz". I can
> confirm that the harfbuzz-11.0.0 package is installed on the computer, though.
> 
> This patch was prepared by Brad, I tested it on OpenBSD 7.7 amd64. I can see the 
> image file being generated as expected.
> 
> [0]: https://ffmpeg.org/ffmpeg-filters.html#drawtext-1
> 
> Ok?
> 
> Index: graphics/ffmpeg/Makefile
> ===================================================================
> RCS file: /cvs/ports/graphics/ffmpeg/Makefile,v
> diff -u -p -r1.244 Makefile
> --- graphics/ffmpeg/Makefile	20 Mar 2025 08:48:34 -0000	1.244
> +++ graphics/ffmpeg/Makefile	20 May 2025 07:11:56 -0000
> @@ -2,7 +2,7 @@ COMMENT=	audio/video converter and strea
>  
>  V=		6.1.2
>  DISTNAME=	ffmpeg-${V}
> -REVISION=	1
> +REVISION=	2
>  EPOCH=		1
>  CATEGORIES=	graphics multimedia
>  SITES=		https://ffmpeg.org/releases/
> @@ -27,11 +27,11 @@ MAINTAINER=	Brad Smith <brad@comstyle.co
>  PERMIT_PACKAGE=	Yes
>  
>  WANTLIB += SDL2 X11 Xext Xv aom ass bz2 c crypto dav1d fontconfig
> -WANTLIB += freetype fribidi gsm iconv lzma m mp3lame opus pthread
> -WANTLIB += sndio speex ssl theoradec theoraenc v4l2 va va-drm
> -WANTLIB += va-x11 vidstab vorbis vorbisenc vpx webp webpmux x264
> -WANTLIB += x265 xcb xcb-shape xcb-shm xcb-xfixes xml2 xvidcore z
> -WANTLIB += zimg
> +WANTLIB += freetype fribidi gsm harfbuzz iconv lzma m mp3lame opus
> +WANTLIB += pthread sndio speex ssl theoradec theoraenc v4l2 va
> +WANTLIB += va-drm va-x11 vidstab vorbis vorbisenc vpx webp webpmux
> +WANTLIB += x264 x265 xcb xcb-shape xcb-shm xcb-xfixes xml2 xvidcore
> +WANTLIB += z zimg
>  
>  COMPILER=	base-clang ports-gcc
>  COMPILER_LANGS=	c
> @@ -52,6 +52,7 @@ LIB_DEPENDS=	archivers/bzip2 \
>  		audio/speex \
>  		audio/gsm \
>  		converters/libiconv \
> +		devel/harfbuzz \
>  		devel/sdl2 \
>  		graphics/libwebp \
>  		graphics/zimg \
> @@ -120,6 +121,7 @@ CONFIGURE_ARGS+=--enable-shared \
>  		--enable-libfreetype \
>  		--enable-libfribidi \
>  		--enable-libgsm \
> +		--enable-libharfbuzz \
>  		--enable-libmp3lame \
>  		--enable-libopus \
>  		--enable-libspeex \
>