Helmut Tessarek wrote:
On 28.08.12 4:53 , Raimund Steger wrote:
Is this against current ffmpeg git head?
Can you send me the patch you're trying?
Yes, it is ffmpeg git head.
I've tried to add it in the main function and also in the avfilter code that
initializes fontconfig. (see patches.tar)
OK, I tried your ffmpeg.c.patch, with a configuration in the directory
./fontconfig;
(1) with vf_ass -- seems OK:
sun2:video_encoding)truss \
-topen -ulibc,libfontconfig:setenv,Fc\* \
ffmpeg -i in.avi -vf ass=$HOME/tmp/test.ass out.avi
[...]
/1@1: -> libc:setenv()
/1@1: <- libc:setenv() = 0
[...]
ffmpeg version N-43970-g6c06b56 Copyright (c) 2000-2012 the FFmpeg
developers
built on Aug 28 2012 23:39:01 with gcc 4.5.2 (GCC)
[...]
/1@1: -> libfontconfig:FcConfigCreate()
/1@1: <- libfontconfig:FcConfigCreate() = 0x80a0da8
/1@1: -> libfontconfig:FcConfigParseAndLoad()
/1: open("/home/rs/tmp/video_encoding/fontconfig/fonts.conf",
O_RDONLY) = 5
/1:
open("/home/rs/tmp/video_encoding/fontconfig/conf.d/20-fix-globaladvance
[...]
(2) with vf_drawtext -- seems OK as well:
sun2:video_encoding)truss \
-topen -ulibc,libfontconfig:setenv,Fc\* \
ffmpeg -i in.avi -vf \
drawtext='text=foo:r=25:x=(w-tw)/2:y=h-(2*lh):fontcolor=white' \
out.avi
[...]
/1@1: -> libc:setenv()
/1@1: <- libc:setenv() = 0
[...]
/1@1: -> libfontconfig:FcInitLoadConfigAndFonts()
/1: open("/home/rs/tmp/video_encoding/fontconfig/fonts.conf",
O_RDONLY) = 5
/1:
open("/home/rs/tmp/video_encoding/fontconfig/conf.d/20-fix-globaladvance.conf",
O_RDONLY) = 7
[...]
I also checked (2) with some bogus config file in ./fontconfig that
mapped all requests to a single very recognizable font to be sure, and
it worked.
So I think your patch is OK. I have to say that I didn't link
statically, but I'd be surprised if that made a difference.
I trust you have checked that ffmpeg enabled fontconfig for vf_drawtext
with "egrep 'FONTCONFIG|FREETYPE' config.mak"?
Raimund
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