Re: [FFmpeg-user] FFplay toggle subtitles on / off?

[Michael Castellon]

ffplay: add ass support
https://github.com/cus/ffmpeg/tree/ffplayass

or use other player, for example mplayer
j and J -> Toggle subtitle visibility.


Good luck.

On Wed, Jan 29, 2020 at 1:28 PM Micael Silva  wrote:

> On Wed, 29 Jan 2020, 08:53 Michael Koch, 
> wrote:
>
> > Does FFplay have a keyboard shortcut to toggle the subtitles on / off
> > while playing?
> > In the documentation I found only "t" for cycling the subtitle channel.
> > I'm asking because I have a MP4 file with subtitles, created with FFmpeg.
> > The subtitles are visible in VLC player, but not in FFplay.
> >
> > Below is the console output.
> >
> > C:\Users\mKoch\Desktop>c:\ffmpeg\ffmpeg -i test.mp4 -i subtitle.srt -c:v
> > copy -c
> > :a copy -c:s mov_text -metadata:s:s:0 language=ger -y out2.mp4
> > ffmpeg version git-2020-01-26-5e62100 Copyright (c) 2000-2020 the FFmpeg
> > develop
> > ers
> >built with gcc 9.2.1 (GCC) 20200122
> >configuration: --enable-gpl --enable-version3 --enable-sdl2
> > --enable-fontconfi
> > g --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d
> > --enable-libb
> > luray --enable-libfreetype --enable-libmp3lame
> > --enable-libopencore-amrnb --enab
> > le-libopencore-amrwb --enable-libopenjpeg --enable-libopus
> > --enable-libshine --e
> > nable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame
> > --enable
> > -libvpx --enable-libwavpack --enable-libwebp --enable-libx264
> > --enable-libx265 -
> > -enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib
> > --enable-gmp --enab
> > le-libvidstab --enable-libvorbis --enable-libvo-amrwbenc
> > --enable-libmysofa --en
> > able-libspeex --enable-libxvid --enable-libaom --enable-libmfx
> > --enable-ffnvcode
> > c --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec
> > --enable-dxva2 -
> > -enable-avisynth --enable-libopenmpt --enable-amf
> >libavutil  56. 38.100 / 56. 38.100
> >libavcodec 58. 67.100 / 58. 67.100
> >libavformat58. 36.100 / 58. 36.100
> >libavdevice58.  9.103 / 58.  9.103
> >libavfilter 7. 71.100 /  7. 71.100
> >libswscale  5.  6.100 /  5.  6.100
> >libswresample   3.  6.100 /  3.  6.100
> >libpostproc55.  6.100 / 55.  6.100
> > Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'test.mp4':
> >Metadata:
> >  major_brand : isom
> >  minor_version   : 512
> >  compatible_brands: isomiso2mp41
> >  encoder : Lavf58.35.102
> >Duration: 00:00:06.57, start: 0.00, bitrate: 12352 kb/s
> >  Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v /
> > 0x7634706D), yuv420p
> > , 1920x1080 [SAR 1:1 DAR 16:9], 12216 kb/s, 30 fps, 30 tbr, 15360 tbn,
> > 30 tbc (d
> > efault)
> >  Metadata:
> >handler_name: VideoHandler
> >timecode: 03:47:26:21
> >  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
> > stereo, flt
> > p, 128 kb/s (default)
> >  Metadata:
> >handler_name: SoundHandler
> >  Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s
> >  Metadata:
> >handler_name: TimeCodeHandler
> >timecode: 03:47:26:21
> > Input #1, srt, from 'subtitle.srt':
> >Duration: N/A, bitrate: N/A
> >  Stream #1:0: Subtitle: subrip
> > Output #0, mp4, to 'out2.mp4':
> >Metadata:
> >  major_brand : isom
> >  minor_version   : 512
> >  compatible_brands: isomiso2mp41
> >  encoder : Lavf58.36.100
> >  Stream #0:0(eng): Video: mpeg4 (Simple Profile) (mp4v /
> > 0x7634706D), yuv420p
> > , 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 12216 kb/s, 0.03 fps, 30 tbr,
> > 15360 tbn,
> >   15360 tbc (default)
> >  Metadata:
> >handler_name: VideoHandler
> >timecode: 03:47:26:21
> >  Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
> > stereo, flt
> > p, 128 kb/s (default)
> >  Metadata:
> >handler_name: SoundHandler
> >  Stream #0:2(ger): Subtitle: mov_text (tx3g / 0x67337874)
> >  Metadata:
> >encoder : Lavc58.67.100 mov_text
> > Stream mapping:
> >Stream #0:0 -> #0:0 (copy)
> >Stream #0:1 -> #0:1 (copy)
> >Stream #1:0 -> #0:2 (subrip (srt) -> mov_text (native))
> > Press [q] to stop, [?] for help
> > frame=  197 fps=0.0 q=-1.0 Lsize=9903kB time=00:00:06.53
> > bitrate=12417.0kbit
> > s/s speed=69.8x
> > video:9793kB audio:102kB subtitle:0kB other streams:0kB global
> > headers:0kB muxin
> > g overhead: 0.080009%
> >
> >
> >
> > ffmpeg and ffplay natively works with bitmap subtitles format. Subrip
> will
> > not work unless thru a filter that renders it, which is out of scope of
> the
> > "t" shortcut
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Re: [FFmpeg-user] Fwd: coding video for some old Sony

[Michael Castellon]

For audio, please try 128k standard.
ffmpeg -strict experimental -i input.mp4 -vcodec libxvid -threads 8 -s
624x352 -g 400 -dia_size 514 -bf 1 -b:v 1200k -trellis 2 -aspect 1.860
-level 5.1 -r 25 -acodec libmp3lame output.mp4
look

On Wed, Sep 4, 2019 at 4:06 PM Kieran O Leary 
wrote:

> On Wed, 4 Sep 2019, 20:19 Erik Dobák,  wrote:
>
> > On Tue, 3 Sep 2019 at 18:01, Michael Castellon <
> castellonmich...@gmail.com
> > >
> > wrote:
> >
> > > maybe bitrate,
> > > please try a short video so you don't get tired.
> > > this scale for old tv (crt), 640x480
> > > ffmpeg -strict experimental -i input.mp4 -vcodec libxvid -threads 8 -s
> > > 624x352 -g 400 -dia_size 514 -bf 1 -b:v 1200k -trellis 2 -aspect 1.860
> > > -level 5.1 -r 25 -acodec libmp3lame -ab 128k -ac 2 -async 1 -y
> output.avi
> > > or,
> > > ffmpeg -strict experimental -i input.mp4 -vcodec libxvid -threads 3 -s
> > > 624x352 -g 400 -dia_size 514 -bf 1 -b:v 816k -trellis 2 -aspect 1.860
> > > -level 5.1 -r 25 -acodec libmp3lame -ab 128k -ac 2 -async 1 -y
> output.mp4
> > >
> > > look..
> > >
> > >
> > > On Sun, Sep 1, 2019 at 12:33 PM Erik Dobák 
> wrote:
> > >
> > > > the catch22 original did not work. all my attempts to convert it
> > resulted
> > > > also in a non working video.
> > > > E
> > > >
> > > > On Sun, 1 Sep 2019 at 19:22, Kieran O Leary <
> kieran.o.le...@gmail.com>
> > > > wrote:
> > > >
> > > > > Did that catch-22 example you posted work or not? You never
> > specified..
> > > > >
> > > > > K
> > > > > ___
> > > > > ffmpeg-user mailing list
> > > > > ffmpeg-user@ffmpeg.org
> > > > > https://ffmpeg.org/mailman/listinfo/ffmpeg-user
> > > > >
> > > > > To unsubscribe, visit link above, or email
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> > > >
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> >
> > ok here i can report some sort of success:
> >
> > i created these 3 videos according to your hints:
> >
> > catch22bv1200.avi
> > catch22bv1200.mp4
> > catch22bv816.mp4
> >
> > the mp4 play fine the video (no sound but i can care about this later)
> > but the catch22bv1200.avi does not play at all despite the fact that i
> just
> > changed the extension of the output file in the command you have sent me.
> >
>
> Do both play fine? Please post full command line and terminal output of
> this successful file. And the same for the avi that does not work.
>
> Best,
>
> Kieran
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Re: [FFmpeg-user] Fwd: coding video for some old Sony

[Michael Castellon]

maybe bitrate,
please try a short video so you don't get tired.
this scale for old tv (crt), 640x480
ffmpeg -strict experimental -i input.mp4 -vcodec libxvid -threads 8 -s
624x352 -g 400 -dia_size 514 -bf 1 -b:v 1200k -trellis 2 -aspect 1.860
-level 5.1 -r 25 -acodec libmp3lame -ab 128k -ac 2 -async 1 -y output.avi
or,
ffmpeg -strict experimental -i input.mp4 -vcodec libxvid -threads 3 -s
624x352 -g 400 -dia_size 514 -bf 1 -b:v 816k -trellis 2 -aspect 1.860
-level 5.1 -r 25 -acodec libmp3lame -ab 128k -ac 2 -async 1 -y output.mp4

look..


On Sun, Sep 1, 2019 at 12:33 PM Erik Dobák  wrote:

> the catch22 original did not work. all my attempts to convert it resulted
> also in a non working video.
> E
>
> On Sun, 1 Sep 2019 at 19:22, Kieran O Leary 
> wrote:
>
> > Did that catch-22 example you posted work or not? You never specified..
> >
> > K
> > ___
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> >
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Re: [FFmpeg-user] (no subject)

[Michael Castellon]

Ok.
I understand.

Thanks.



On Fri, Aug 23, 2019 at 6:23 PM Carl Eugen Hoyos  wrote:

> Am Sa., 24. Aug. 2019 um 00:16 Uhr schrieb Michael Castellon
> :
> >
> > FFmpeg users, please you help.
> >
> > ffplay -devices
>
> ffplay uses sdl for output, none of the FFmpeg "devices".
>
> Carl Eugen
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[FFmpeg-user] (no subject)

[Michael Castellon]

FFmpeg users, please you help.

ffplay -devices

Devices:
 D. = Demuxing supported
 .E = Muxing supported
 --
 DE alsaALSA audio output
 DE fbdev   Linux framebuffer
 D  lavfi   Libavfilter virtual input device
 DE oss OSS (Open Sound System) playback
  E sdl,sdl2SDL2 output device
 DE sndio   sndio audio playback
 DE video4linux2,v4l2 Video4Linux2 output device
 D  x11grab X11 screen capture, using XCB
  E xv  XV (XVideo) output device

But how do I know that output I am using?
For example, I am needing to force output
audio: sndio
video: xv

Thanks.
Michael.
Regards
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Re: [FFmpeg-user] Fwd: coding video for some old Sony

[Michael Castellon]

maybe, video or audio quality .
please try,
ffmpeg -i input.avi -c:v mpeg4 -vtag xvid -qscale:v 5 -c:a libmp3lame
-qscale:a 5 output.avi

maybe, the resolution
-vf scale=720:480:decrease

information for divx player,
https://trac.ffmpeg.org/wiki/Encode/MPEG-4

luck...



On Mon, Aug 19, 2019 at 2:32 PM Erik Dobák  wrote:

> On Mon, 19 Aug 2019 at 18:48, Michael Castellon <
> castellonmich...@gmail.com>
> wrote:
>
> > please try.
> >
> > ffmpeg -i input.mp4 -c:v mpeg4 -vtag xvid output.avi
> >
> > good luck
> >
> > On Tue, Aug 13, 2019 at 3:20 PM Erik Dobák  wrote:
> >
> > > On Tue, 13 Aug 2019 at 12:07, Carl Eugen Hoyos 
> > wrote:
> > >
> > > > Am Mo., 12. Aug. 2019 um 18:54 Uhr schrieb Erik Dobák <
> > > > erik.do...@gmail.com>:
> > > > >
> > > > > sorry for mixing this up. it should be:
> > > > >
> > > > > playing fine:
> > > > > Disenchantment.S01E01.720p.WEB-DL.x264.avi
> > > > > Monty_Python_s_The_Meaning_Of_Life
> > > > >
> > > > > not playing fine:
> > > > > catch22
> > > > > eels
> > > > > life of Brian
> > > >
> > > > That does not make the mail significantly more readable.
> > > >
> > > > It appears that this is a resolution or aspect ratio issue,
> > > > feel free to post the command lines including complete,
> > > > uncut console output of current FFmpeg git head with
> > > > different resolutions.
> > > >
> > > > As said, global motion compensation may also be relevant.
> > > >
> > > > > i have checked the output myself but can not see any reason why
> the 3
> > > > > should not play fine on the TV. after some interweb reasearch i
> found
> > > > some
> > > > > posts about Sony blocking watermarked videos on their products. it
> > > might
> > > > be
> > > > > the case here. but that would be beyond the ffmpeg topic i guess.
> > > >
> > > > This is very, very unlikely, even more so for re-encoded videos.
> > > >
> > > > Please find out what top-posting means and avoid it here.
> > > >
> > > > Carl Eugen
> > > >
> > > i will investigate now the ratio as possible cause of my pirated
> content
> > > playback problem. will let you know the outcome in a few days.
> > > thank you.
> > >
> > > E
> > > ___
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> > >
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>
>
> no i did try that codec before.
> E
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Re: [FFmpeg-user] Fwd: coding video for some old Sony

[Michael Castellon]

please try.

ffmpeg -i input.mp4 -c:v mpeg4 -vtag xvid output.avi

good luck

On Tue, Aug 13, 2019 at 3:20 PM Erik Dobák  wrote:

> On Tue, 13 Aug 2019 at 12:07, Carl Eugen Hoyos  wrote:
>
> > Am Mo., 12. Aug. 2019 um 18:54 Uhr schrieb Erik Dobák <
> > erik.do...@gmail.com>:
> > >
> > > sorry for mixing this up. it should be:
> > >
> > > playing fine:
> > > Disenchantment.S01E01.720p.WEB-DL.x264.avi
> > > Monty_Python_s_The_Meaning_Of_Life
> > >
> > > not playing fine:
> > > catch22
> > > eels
> > > life of Brian
> >
> > That does not make the mail significantly more readable.
> >
> > It appears that this is a resolution or aspect ratio issue,
> > feel free to post the command lines including complete,
> > uncut console output of current FFmpeg git head with
> > different resolutions.
> >
> > As said, global motion compensation may also be relevant.
> >
> > > i have checked the output myself but can not see any reason why the 3
> > > should not play fine on the TV. after some interweb reasearch i found
> > some
> > > posts about Sony blocking watermarked videos on their products. it
> might
> > be
> > > the case here. but that would be beyond the ffmpeg topic i guess.
> >
> > This is very, very unlikely, even more so for re-encoded videos.
> >
> > Please find out what top-posting means and avoid it here.
> >
> > Carl Eugen
> >
> i will investigate now the ratio as possible cause of my pirated content
> playback problem. will let you know the outcome in a few days.
> thank you.
>
> E
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Re: [FFmpeg-user] Extracting opus frames from webm/mkv

[Michael Castellon]

ffmpeg -i video.mp4 -vn -acodec libopus audio.opus



On Sun, Aug 18, 2019 at 3:12 PM Dziku  wrote:

> Hello,
>
> I have webm files with only opus encoded audio track that I'm streaming
> through a voice chat that requires opus encoded packets as input. So far
> I've been using ffmpeg to convert the webms with opus audio to ogg
> containers and then use my own code to extract opus packets from ogg, which
> is obviously inefficient, because webms already contain the very same opus
> packets.
>
> I would like to extract opus encoded packets so that I can directly serve
> them to the voice chat. Is it possible to achieve with ffmpeg cli or any of
> its C libraries?
>
> Best regards,
> Adam Nowak
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Re: [FFmpeg-user] ffplay, display subtitles

[Michael Castellon]

Ted,
Thank you very much.

It working...

Michael.
Regards.


On Thu, Aug 15, 2019 at 9:42 PM Ted Park  wrote:

> >> On Tue, Aug 13, 2019 at 3:44 PM Marton Balint  wrote:
> >>
> >> FFplay has currently no support for non-bitmap subtitles. I have a patch
> >> on github which adds ASS support if you are interested.
> >>
> >> https://github.com/cus/ffmpeg/tree/ffplayass
> >>
> > On Aug 13, 2019, at 5:59 PM, Michael Castellon <
> castellonmich...@gmail.com> wrote:
> >
> > Hello Marton,
> >
> > Thanks you for information.
> > Bitmap subtitles is ok for me.
> >
> > I compile with libraries ass
> > $./configure --enable-libass
> >
> > Now, for subtitles srt, I found  this command,
> > ffplay -vf subtitles=input.srt input.mp4
> > and this works.
> >
> > but how to view the stream of subtitle from mkv files
> > for example
> > Stream #0:3(spa)
> >
> > I tested.
> > ffplay -sst 3 input.mkv
> > but not works.
> > error: Stream specifier 3 does not match any subtitle stream
> >
>
> Oh, right. I just assumed subtitles meant text-based for some reason…
> Bitmap subtitles won’t work. Closed captions and teletype doesn’t work
> either. (Afaik)
>
> What does it say the subtitle codec is? You should post the output of your
> command.
>
> If it is text based, ffplay -vf subtitles=input.mkv input.mkv should work.
> I don’t think the -sst option ever worked in ffplay.
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Re: [FFmpeg-user] ffplay, display subtitles

[Michael Castellon]

Hello Ted,
Thanks you for information.

I compile with libass
$./configure --enable-libass

But now, how to display the stream of subtitle from mkv files
for example Stream #0:3(spa)
I tested.
$ffplay -sst 3 input.mkv
but not works.
Error: Stream specifier 3 does not match any subtitle stream

Please your help.

Thank you.
Michael.
Regards.

On Tue, Aug 13, 2019 at 2:17 PM Ted Park  wrote:

> > Libraries:
> > libxv-dev/stable,now 2:1.0.11-1 amd64 [installed]  --  X11 Video
> extension
> > library (development headers)
> > libsdl2-dev/stable,now 2.0.9+dfsg1-1 amd64 [installed]  --  Simple
> > DirectMedia Layer development files
> > libvdpau-dev/stable,now 1.1.1-10 amd64 [installed]  --  Video Decode and
> > Presentation API for Unix (development files)
> > libva-dev/stable,now 2.4.0-1 amd64 [installed] --  Video Acceleration
> (VA)
> > API for Linux -- development files
> > libfreetype6-dev/stablibvdpau-dev/stable,now 1.1.1-10 amd64 [installed]
> --
> > FreeType 2 font engine, development files
>
> You need to get libass, and recompile.
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Re: [FFmpeg-user] ffplay, display subtitles

[Michael Castellon]

Hello Marton,

Thanks you for information.
Bitmap subtitles is ok for me.

I compile with libraries ass
$./configure --enable-libass

Now, for subtitles srt, I found  this command,
ffplay -vf subtitles=input.srt input.mp4
and this works.

but how to view the stream of subtitle from mkv files
for example
 Stream #0:3(spa)

I tested.
ffplay -sst 3 input.mkv
but not works.
error: Stream specifier 3 does not match any subtitle stream

Please your help.

Thank you.
Michael.
Regards





On Tue, Aug 13, 2019 at 3:44 PM Marton Balint  wrote:

>
>
> On Tue, 13 Aug 2019, Ted Park wrote:
>
> >> Libraries:
> >> libxv-dev/stable,now 2:1.0.11-1 amd64 [installed]  --  X11 Video
> extension
> >> library (development headers)
> >> libsdl2-dev/stable,now 2.0.9+dfsg1-1 amd64 [installed]  --  Simple
> >> DirectMedia Layer development files
> >> libvdpau-dev/stable,now 1.1.1-10 amd64 [installed]  --  Video Decode and
> >> Presentation API for Unix (development files)
> >> libva-dev/stable,now 2.4.0-1 amd64 [installed] --  Video Acceleration
> (VA)
> >> API for Linux -- development files
> >> libfreetype6-dev/stablibvdpau-dev/stable,now 1.1.1-10 amd64
> [installed]  --
> >> FreeType 2 font engine, development files
> >
> > You need to get libass, and recompile.
>
> FFplay has currently no support for non-bitmap subtitles. I have a patch
> on github which adds ASS support if you are interested.
>
> https://github.com/cus/ffmpeg/tree/ffplayass
>
> Regards,
> Marton
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Re: [FFmpeg-user] FFmpeg - openWRT -

[Michael Castellon]

Hi Phil,

Ready, I will test it.
libx264-dev / stable, now 2: 0.155.2917 + git0a84d98-2 amd64 [installed] -
development files for libx264

Now is compiling, i will let you know any question.

Thank you, so much.
Michael.
Regards

On Tue, Aug 13, 2019 at 12:01 PM Philip Chisholm  wrote:

> Hi
>
> Can you add libx264 to ffmpeg on openwrt.
>
> OS: openwrt
> Device: Linkit 7688 duo
> Architecture: mips 2kc
>
>
> ***
> Currently we can only get Flash (flv) to stream form device.
> Flash is bad for web...need to 'ok' browers - plus security issues...
>
> And from reading many discussions...we need libx264 to stream in other
> formats
>
> We want to be able to live stream from device to web - in other formats
> other than Flash (flv).
> Some format that will be ok for top browsers (and mobile apps iOS and
> Android).
> We think mpeg is ok - but you may know better...
> Suggestions?
>
> Thanks so much!!
>
> Phil
>
>
> Philip Chisholm
>
> Filzer
> 173 Ravenscraig Dr.
> Halifax, NS
> B3P 0B7
>
> Tel: (902) 450-7200
> www.filzer.com
>
>
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[FFmpeg-user] ffplay, display subtitles

[Michael Castellon]

Hello, my name is Michael Castellón.

I'm writing from Managua, Nicaragua.

I'm new in linux, and I'm interested to use your vast suite of libraries
open source and ffplay for media player.
Compile and run ffplay work very well, but it don't display the subtitles
of the file mkv.

It's possible display subtitles of an mkv in ffplay?

Linux information
Distro: Debian 10
kernel:  4.19.0-5-amd64

Libraries:
libxv-dev/stable,now 2:1.0.11-1 amd64 [installed]  --  X11 Video extension
library (development headers)
libsdl2-dev/stable,now 2.0.9+dfsg1-1 amd64 [installed]  --  Simple
DirectMedia Layer development files
libvdpau-dev/stable,now 1.1.1-10 amd64 [installed]  --  Video Decode and
Presentation API for Unix (development files)
libva-dev/stable,now 2.4.0-1 amd64 [installed] --  Video Acceleration (VA)
API for Linux -- development files
libfreetype6-dev/stablibvdpau-dev/stable,now 1.1.1-10 amd64 [installed]  --
 FreeType 2 font engine, development files

Sorry for my english, is not very good.
Thank you, very much.
Michael.
Regards.
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