[MPlayer-users] Help ripping old DVD showing errors

[Jonathan Crowther]

Stephane,

DVD was made by my father on an old home DVD player/recorder. Dad is dead. The video is of a cine film made by his father in 1920s, including my father as a baby. Value is subjective, but I may need to go back to the VHS tapes or the celluloid films if this fails me, to recover family history.

I cannot find a place talking about how to fix elapsed time; would welcome if you can find.

It may be the metadata written by the DVD player in 2005 failing modern requirements, not the actual video format.

However, a complete dummy guessing...

If I use "-identify" then I get title lengths:
ID_DVD_TITLE_1_LENGTH=602.400
ID_DVD_TITLE_2_LENGTH=1721.280
ID_DVD_TITLE_3_LENGTH=503.520
ID_DVD_TITLE_4_LENGTH=131.040
ID_DVD_TITLE_5_LENGTH=1010.880
ID_DVD_TITLE_6_LENGTH=3259.200

... but later bits like:
libdvdread: Get key for /VIDEO_TS/VTS_06_1.VOB at 0x00118310
libdvdread: Elapsed time 0
libdvdread: Found 6 VTS's
libdvdread: Elapsed time 0

I see:

MPEG-PS file format detected.

But this Windows port has this error output:

Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 59.55.103 (internal)
[mpeg2video @ 029e3ee0]Requested frame threading with a custom get_buffer2() implementation which is not marked as thread safe. This is not supported anymore, make your callback thread-safe.
Selected video codec: [ffmpeg2] vfm: ffmpeg (FFmpeg MPEG-2)

Although worrying, thread safeness does not usually have non-random impacts (thread timing usually makes output unreliable in a random way, or leads to crashes).

Thanks,
Jonathan 🚂

________________________________
From: MPlayer-users <mplayer-users-bounces at mplayerhq.hu> on behalf of Stephane Ascoet <stephaneascoet at free.fr>
Sent: Saturday, July 8, 2023 5:47 AM
To: mplayer-users at mplayerhq.hu <mplayer-users at mplayerhq.hu>
Subject: Re: [MPlayer-users] Help ripping old DVD showing errors

Jonathan Crowther 08/07/2023 11:00:
>
> I realize this is a very old DVD (maybe 20 years) using really old formats.
>

Hi, old formats? If it's a DVD-video, it uses standard MPEG-2 enconding, like
all of them!
I don't know about m$ OSes, but under GNU/Linux I remember seeing in VLC and/or
MPlayer man pages that there is an option to correct a broken timeline in a
video file.
What the content of the DVD? Does it desserve the effort?

--
Sincerely, Stephane Ascoet
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