Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-25 Thread Farhad Mohammadi Majd 
at 2018 Mar 15 15:42:32, Adi Marvillo (adi5 at gmx.at) wrote:
> This is your command:
> *ffmpeg -i ./dump.stream -g 25 -keyint_min 3 -vf -aspect "16:9" -map
> v
> -c:v libx264 -map a -c:a copy ./output.mkv
> *ffprobe doesn't show a subtitle stream, don't know where it is... as
> much as I know subtitles are streams as well. Let us know when you
> find
> out.CU

Thanks for trying to help me but this is the second time your command
is wrong, some options are wrong, I don't known what options, anyway
the important issue is that I don't want to transcode it.

at 2018 Mar 8 22:49:17, Nicolas George (george at nsup.org) wrote:
> FFmpeg can read them, but it cannot put them into anything useful at
> this time. MEncoder can extract them.

thanks, I searched the WWW and it seems there are many documentation
about it, I will try to do that later.

good luck and bye
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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-15 Thread Nicolas George 
Matt Zagrabelny (2018-03-15):
> Is there any significant difference between dvd2concat and mplayer
> -dumpstream dvd://TITLE

With the result of mplayer -dumpstream, you will need to adjust the
probe size and duration to catch the subtitles.

Regards,

-- 
  Nicolas George


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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-15 Thread Matt Zagrabelny 
Hi Nicolas,

On Thu, Mar 15, 2018 at 3:06 PM, Nicolas George  wrote:

> Moritz Barsnick (2018-03-15):
> >   $ ffmpeg -i Downloads/TV/VTS_03_1.VOB -c copy -f null -
>
> Please stop giving that bad advice. Never access VOB files in DVD video
> structure directly.
>
> Use tools/dvd2concat, it takes care of subtitles too.
>

Is there any significant difference between dvd2concat and mplayer
-dumpstream dvd://TITLE

?

Thanks!

-m
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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-15 Thread Nicolas George 
Moritz Barsnick (2018-03-15):
>   $ ffmpeg -i Downloads/TV/VTS_03_1.VOB -c copy -f null -

Please stop giving that bad advice. Never access VOB files in DVD video
structure directly.

Use tools/dvd2concat, it takes care of subtitles too.

Regards,

-- 
  Nicolas George


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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-15 Thread Hans Carlson 

On Thu, 15 Mar 2018, Moritz Barsnick wrote:


On Thu, Mar 15, 2018 at 09:18:01 -0700, Carl Zwanzig wrote:

On 3/15/2018 9:05 AM, Moritz Barsnick wrote:

AFAIU, MPEG-PS can contain streams which appear later. (Same for
MPEG-TS, I think.) Perhaps the subtitle streams aren't visible at t=0.


That is my experience- often a subtitle stream itself won't appear until
time for the first one to appear;


Here's an example:

 $ ffmpeg -i Downloads/TV/VTS_03_1.VOB -c copy -f null -
 ...
 Input #0, mpeg, from 'Downloads/TV/VTS_03_1.VOB':
 ...
 Stream #0:3[0x22]: Subtitle: dvd_subtitle
 Stream #0:4[0x21]: Subtitle: dvd_subtitle
 Stream #0:5[0x23]: Subtitle: dvd_subtitle
 ...
 [mpeg @ 0xb086980] New subtitle stream 0:6 at pos:5179406 and DTS:5.28s

Note the subtitle streams 0:3 to 0:5, and the message when 0:6 appears.


(Can be highly annoying, but there it is.)


Indeed, in the given example, I can't map 0:6, no matter the "-ss" I give:


The way to "fix" this is to specify a large analyzeduration/probesize, eg:

  $ ffmpeg -analyzeduration 100M -probesize 100M -i movie.vob ...

Exactly how large depends on where the first subtitle appears within each 
subtitle stream.  I've used values of 2G (and even larger) in order to see 
some subtitles that only appear much later in the movie.  This is 
especially true for movies that use a separate subtitle stream for 
"forced" foreign language.  In other words, an hour into the movie the 
"aliens" are first encountered and they speak in an unintelligible 
language that appears translated as a subtitle on stream 0:10.  Within 5 
mins they somehow learn English and no other subtitles appear for the rest 
of the movie.  So, stream 0:10 only contains a few subtitles right in the 
middle.


In the above example, try using increasingly larger values for 
analyzeduration/probesize until 0:6 shows up with the following command. 
(No other options, just want to see the input streams.  You could also use 
ffprobe if you prefer.)


  $ ffmpeg -analyzeduration 10M -probesize 10M -i Downloads/TV/VTS_03_1.VOB
  $ ffmpeg -analyzeduration 100M -probesize 100M -i Downloads/TV/VTS_03_1.VOB
  $ ffmpeg -analyzeduration 500M -probesize 500M -i Downloads/TV/VTS_03_1.VOB
  $ ffmpeg -analyzeduration 1G -probesize 1G -i Downloads/TV/VTS_03_1.VOB

You can try different values for analyzeduration and probesize, but I seem 
to recall they both have to be "large enough".  They don't need to be the 
SAME value, just large enough for their respective purposes.  Where 
analyzeduration is TIME (micro-secs) and probesize is SIZE (bytes).  The 
algorithm appears to stop analyzing/probing when either of the limits is 
reached, so both need to be sufficiently large.

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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-15 Thread Moritz Barsnick 
On Thu, Mar 15, 2018 at 09:18:01 -0700, Carl Zwanzig wrote:
> On 3/15/2018 9:05 AM, Moritz Barsnick wrote:
> > AFAIU, MPEG-PS can contain streams which appear later. (Same for
> > MPEG-TS, I think.) Perhaps the subtitle streams aren't visible at t=0.
> 
> That is my experience- often a subtitle stream itself won't appear until 
> time for the first one to appear;

Here's an example:

  $ ffmpeg -i Downloads/TV/VTS_03_1.VOB -c copy -f null -
  ffmpeg version N-90214-gdd3f1e3 Copyright (c) 2000-2018 the FFmpeg developers
built with icc (ICC) 14.0.3 20140422
configuration: --prefix=/usr/new/tools/video/install/ffmpeg/2018-03-04 
--cc=icc --cxx=icpc --enable-gpl --enable-version3 --enable-nonfree 
--disable-shared --enable-gnutls --enable-libcdio --enable-libfreetype 
--enable-libx264 --enable-libvpx --enable-libmp3lame --enable-openal 
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtwolame 
--enable-librtmp --enable-libass --enable-libv4l2 --enable-libvidstab 
--enable-libfdk-aac --enable-libsmbclient --enable-libzvbi 
--enable-libtesseract --enable-libzmq --enable-libopus --enable-libcodec2
libavutil  56.  8.100 / 56.  8.100
libavcodec 58. 13.102 / 58. 13.102
libavformat58. 10.100 / 58. 10.100
libavdevice58.  2.100 / 58.  2.100
libavfilter 7. 12.100 /  7. 12.100
libswscale  5.  0.102 /  5.  0.102
libswresample   3.  0.101 /  3.  0.101
libpostproc55.  0.100 / 55.  0.100
  Input #0, mpeg, from 'Downloads/TV/VTS_03_1.VOB':
Duration: 00:00:31.55, start: 0.28, bitrate: 8357 kb/s
  Stream #0:0[0x1bf]: Data: dvd_nav_packet
  Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top first), 
720x576 [SAR 64:45 DAR 16:9], 8000 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
  Stream #0:2[0x80]: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
  Stream #0:3[0x22]: Subtitle: dvd_subtitle
  Stream #0:4[0x21]: Subtitle: dvd_subtitle
  Stream #0:5[0x23]: Subtitle: dvd_subtitle
  Output #0, null, to 'pipe:':
Metadata:
  encoder : Lavf58.10.100
  Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, top first), 720x576 
[SAR 64:45 DAR 16:9], q=2-31, 8000 kb/s, 25 fps, 25 tbr, 90k tbn, 90k tbc
  Stream #0:1: Audio: ac3, 48000 Hz, stereo, fltp, 192 kb/s
  Stream mapping:
Stream #0:1 -> #0:0 (copy)
Stream #0:2 -> #0:1 (copy)
  Press [q] to stop, [?] for help
  [mpeg @ 0xb086980] New subtitle stream 0:6 at pos:5179406 and DTS:5.28s
  frame=  791 fps=0.0 q=-1.0 Lsize=N/A time=00:00:31.56 bitrate=N/A speed=57.8x
  video:30898kB audio:740kB subtitle:0kB other streams:0kB global headers:0kB 
muxing overhead: unknown

Note the subtitle streams 0:3 to 0:5, and the message when 0:6 appears.

> (Can be highly annoying, but there it is.)

Indeed, in the given example, I can't map 0:6, no matter the "-ss" I give:

  Stream map '0:6' matches no streams.

Perhaps it only appears for one packet, and I can't navigate exactly to that 
one.

Moritz
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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-15 Thread Carl Zwanzig 

On 3/15/2018 9:05 AM, Moritz Barsnick wrote:

AFAIU, MPEG-PS can contain streams which appear later. (Same for
MPEG-TS, I think.) Perhaps the subtitle streams aren't visible at t=0.


That is my experience- often a subtitle stream itself won't appear until 
time for the first one to appear; could be a couple of minutes. (Can be 
highly annoying, but there it is.)


Later,

z!
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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-15 Thread Moritz Barsnick 
On Thu, Mar 15, 2018 at 14:42:32 +0100, Adi Marvillo wrote:
> > Input #0, mpeg, from 'stream.dump':
> >   Duration: 01:16:44.93, start: 0.040033, bitrate: 5392 kb/s
> > Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top
> > first), 720x480 [SAR 32:27 DAR 16:9], 29.67 fps, 59.94 tbr, 90k tbn,
> > 59.94 tbc
> > Stream #0:1[0x80]: Audio: ac3, 
> > It is odd that mediainfo can't report anything about this file, even
> > after changing its suffix to mpeg or vob.
> >
> > When I play it with MPV/SMplayer I can disable or select one from two
> > available subtitles.

> This is your command:
> *ffmpeg -i ./dump.stream -g 25 -keyint_min 3 -vf -aspect "16:9" -map v
> -c:v libx264 -map a -c:a copy ./output.mkv
> *ffprobe doesn't show a subtitle stream, don't know where it is... as
> much as I know subtitles are streams as well. Let us know when you find
> out.CU

AFAIU, MPEG-PS can contain streams which appear later. (Same for
MPEG-TS, I think.) Perhaps the subtitle streams aren't visible at t=0.

The ffmpeg command given by Adi should report appearing streams while
parsing.

Moritz
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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-15 Thread Farhad Mohammadi Majd 
at 2018 Mar 13 18:19:45, Adi Marvillo wrote:

> I can't support you with anything with this information. Please
> provide
> [code] ffprobe stream.dump [/code]. Look the used ffmpeg codecs
> (libx264) up in the Documentation. cheers

[code]
$ ffprobe stream.dump 
ffprobe version 3.2.10-1~deb9u1 Copyright (c) 2007-2018 the FFmpeg
developers
  built with gcc 6.3.0 (Debian 6.3.0-18) 20170516
  configuration: --prefix=/usr --extra-version='1~deb9u1' --
toolchain=hardened --libdir=/usr/lib/i386-linux-gnu --
incdir=/usr/include/i386-linux-gnu --enable-gpl --disable-stripping --
enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --
enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libcdio --enable-libebur128 --enable-libflite --enable-
libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme
--enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-
libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --
enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex
--enable-libssh --enable-libtheora --enable-libtwolame --enable-
libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --
enable-libx265 --enable-libxvid --enable-libzmq --enable-libzvbi --
enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-
libdc1394 --enable-libiec61883 --enable-chromaprint --enable-frei0r --
enable-libopencv --enable-libx264 --enable-shared
  libavutil  55. 34.101 / 55. 34.101
  libavcodec 57. 64.101 / 57. 64.101
  libavformat57. 56.101 / 57. 56.101
  libavdevice57.  1.100 / 57.  1.100
  libavfilter 6. 65.100 /  6. 65.100
  libavresample   3.  1.  0 /  3.  1.  0
  libswscale  4.  2.100 /  4.  2.100
  libswresample   2.  3.100 /  2.  3.100
  libpostproc54.  1.100 / 54.  1.100
Input #0, mpeg, from 'stream.dump':
  Duration: 01:16:44.93, start: 0.040033, bitrate: 5392 kb/s
Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p(tv, top
first), 720x480 [SAR 32:27 DAR 16:9], 29.67 fps, 59.94 tbr, 90k tbn,
59.94 tbc
Stream #0:1[0x80]: Audio: ac3, 
[/code]

It is odd that mediainfo can't report anything about this file, even
after changing its suffix to mpeg or vob.

When I play it with MPV/SMplayer I can disable or select one from two
available subtitles.

THANKS
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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-13 Thread Adi Marvillo 
Am 2018-03-11 um 08:39 schrieb Farhad Mohammadi Majd:
> Al right, I did install both Mplayer and MEncoder.
>
> on 2018-03-08--12:01:13 Adi Marvillo wrote:
>
>> [code]
>> mplayer dvd://TITLE -dumpstream -dumpfile ~/media/movie.vob # be sure
>> to
>> select the correct TITLE - in this case it would be 1
> I test the command but it was unsuccessful because it is wrong, the
> switch "-dumpfile" should be removed, also there is no ~/media/
> directory by default, after fix the command, mplayer saved the whole
> DVD into "stream.dump" with all subtitles.
>
>> [code]
>> ffmpeg -i ~/media/movie.vob -g 25 -keyint_min 3 -map 0:v
>> -c:v libx264 -map 0:a -c:a copy  OUTPUTFILE.mkv
>> [/code]
> What does it do?
> on 2018 Mar 8 22:49:17 Nicolas George wrote:
>
>> MEncoder can extract them.
> Please explain how to do that.
>
> THANKS
>
> ==  OFF-TOPIC  ==
> The name of this film is "Home Movie (2008)"
>
> https://en.wikipedia.org/wiki/Home_Movie_(film)
>
> It is a good and odd horror film, I recommend to watch it.
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I can't support you with anything with this information. Please provide
[code] ffprobe stream.dump [/code]. Look the used ffmpeg codecs
(libx264) up in the Documentation. cheers
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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-11 Thread Farhad Mohammadi Majd 
Al right, I did install both Mplayer and MEncoder.

on 2018-03-08--12:01:13 Adi Marvillo wrote:

> [code]
> mplayer dvd://TITLE -dumpstream -dumpfile ~/media/movie.vob # be sure
> to
> select the correct TITLE - in this case it would be 1

I test the command but it was unsuccessful because it is wrong, the
switch "-dumpfile" should be removed, also there is no ~/media/
directory by default, after fix the command, mplayer saved the whole
DVD into "stream.dump" with all subtitles.

> [code]
> ffmpeg -i ~/media/movie.vob -g 25 -keyint_min 3 -map 0:v
> -c:v libx264 -map 0:a -c:a copy  OUTPUTFILE.mkv
> [/code]

What does it do?
on 2018 Mar 8 22:49:17 Nicolas George wrote:

> MEncoder can extract them.

Please explain how to do that.

THANKS

==  OFF-TOPIC  ==
The name of this film is "Home Movie (2008)"

https://en.wikipedia.org/wiki/Home_Movie_(film)

It is a good and odd horror film, I recommend to watch it.
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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-08 Thread Carl Eugen Hoyos 
2018-03-08 21:49 GMT+01:00, Nicolas George :
> Farhad Mohammadi Majd (2018-03-08):

>> I need to those dvd_subtitle(s). How to extract them?
>
> FFmpeg can read them, but it cannot put them into
> anything useful at this time.

That surprises me: I would have expected dvdsub conversion
to work fine. I believe some issues were fixed.

Carl Eugen
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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-08 Thread Nicolas George 
Farhad Mohammadi Majd (2018-03-08):
> $ ffmpeg -i VTS_01_1.VOB

Do not do that. Never access the VOB files in a DVD-video structure
directly, they do not contain only the title video data but also menus
and garbage. You can use tools/dvd2concat to extract only the parts of
the VOB file that matters. Or MPlayer to dump them into a file.

> I need to those dvd_subtitle(s). How to extract them?

FFmpeg can read them, but it cannot put them into anything useful at
this time. MEncoder can extract them.

Regards,

-- 
  Nicolas George


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Re: [FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-08 Thread Farhad Mohammadi Majd 
> I guess your DVD-Film is concatenated ...

The full film is consists of three files, this is the first file.

> in this case you have to extract the whole concatenated VOB with
> mplayer and dump it into a file before you can  apply ffmpeg

I don't have mplayer on the system, I have mpv instead, is it possible
to do that with MPV or ffmpeg itself? although installing mplayer is
not so hard but I prefer to do that with mpv or ffmpeg.

THANKS
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[FFmpeg-user] How to extract DVD subtitle from this VOB file?

2018-03-08 Thread Farhad Mohammadi Majd 
Hello, I have ffmpeg v3.2.9 on Debian v9.3

I have searched WWW for suitable command but none of them worked for
me, and ffmpeg is complex.

== My file ==
$ ffmpeg -i VTS_01_1.VOB
.
.
.
.
Input #0, mpeg, from 'VTS_01_1.VOB':
  Duration: 00:24:40.83, start: 0.040033, .
Stream #0:0[0x1bf]: Data: dvd_nav_packet
Stream #0:1[0x1e0]: Video: mpeg2video (Main), .
Stream #0:2[0x80]: Audio: .
Stream #0:3[0x21]: Subtitle: dvd_subtitle
Stream #0:4[0x20]: Subtitle: dvd_subtitle

=

I need to those dvd_subtitle(s). How to extract them?

THANKS
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