127 lines
4 KiB
Perl
Executable file
127 lines
4 KiB
Perl
Executable file
#!/usr/bin/env perl
|
|
|
|
# Copyright (c) 2014 Nicolas George
|
|
#
|
|
# This file is part of FFmpeg.
|
|
#
|
|
# FFmpeg is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU Lesser General Public License
|
|
# as published by the Free Software Foundation; either
|
|
# version 2.1 of the License, or (at your option) any later version.
|
|
#
|
|
# FFmpeg is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
# GNU Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with FFmpeg; if not, write to the Free Software Foundation, Inc.,
|
|
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
=head1 NAME
|
|
|
|
dvd2concat - create a concat script for a DVD title
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
tools/dvd2concat I<path/to/dvd/structure> > I<file.concat>
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
This script uses B<lsdvd> to produce concat script for a DVD title.
|
|
The resulting script can be used to play the DVD using B<ffplay>, to
|
|
transcode it using B<ffmpeg> or any other similar use.
|
|
|
|
I<path/to/dvd/structure> is the path to the DVD structure hierarchy; it
|
|
normally contains a directory named B<VIDEO_TS>. It must not be encrypted
|
|
with CSS.
|
|
|
|
I<file.concat> is the output file. It can be used as an input to ffmpeg.
|
|
It will require the B<-safe 0> option.
|
|
|
|
=cut
|
|
|
|
use strict;
|
|
use warnings;
|
|
use Getopt::Long ":config" => "require_order";
|
|
use Pod::Usage;
|
|
|
|
my $title;
|
|
|
|
GetOptions (
|
|
"help|usage|?|h" => sub { pod2usage({ -verbose => 1, -exitval => 0 }) },
|
|
"manpage|m" => sub { pod2usage({ -verbose => 2, -exitval => 0 }) },
|
|
"title|t=i" => \$title,
|
|
) and @ARGV == 1 or pod2usage({ -verbose => 1, -exitval => 1 });
|
|
my ($path) = @ARGV;
|
|
|
|
my $lsdvd_message =
|
|
"Make sure your lsdvd version has the two following patches applied:\n" .
|
|
"http://sourceforge.net/p/lsdvd/feature-requests/1/\n" .
|
|
"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=603826\n";
|
|
|
|
my $lsdvd = do {
|
|
open my $l, "-|", "lsdvd", "-Op", "-x", $path
|
|
or die "You need to install lsdvd for this script to work.\n$lsdvd_message";
|
|
local $/;
|
|
<$l>;
|
|
};
|
|
my %lsdvd = eval $lsdvd;
|
|
die $@ if $@;
|
|
|
|
if (!defined $title) {
|
|
$title = $lsdvd{longest_track};
|
|
warn "Using longest title $title\n";
|
|
}
|
|
my $track = $lsdvd{track}[$title - 1]
|
|
or die "Title $title does not exist (1-", scalar(@{$lsdvd{track}}), ")\n";
|
|
my $vts_base = sprintf "%s/VIDEO_TS/VTS_%02d_", $path, $track->{vts};
|
|
my @frag;
|
|
for my $i (1 .. 9) {
|
|
my $file = sprintf "%s%d.VOB", $vts_base, $i;
|
|
my $size = -s $file or last;
|
|
push @frag, { file => $file, size => $size >> 11 };
|
|
}
|
|
|
|
my $concat = "ffconcat version 1.0\n";
|
|
$concat .= "\nstream\nexact_stream_id 0x1E0\n";
|
|
for my $audio (@{$track->{audio}}) {
|
|
$concat .= "\nstream\nexact_stream_id " . $audio->{streamid} . "\n";
|
|
}
|
|
for my $subp (@{$track->{subp}}) {
|
|
$concat .= "\nstream\nexact_stream_id " . $subp->{streamid} . "\n";
|
|
}
|
|
for my $cell (@{$track->{cell}}) {
|
|
my $off = $cell->{first_sector};
|
|
die "Your lsdvd version does not print cell sectors.\n$lsdvd_message"
|
|
unless defined $off;
|
|
my $size = $cell->{last_sector} + 1 - $cell->{first_sector};
|
|
|
|
my $frag = 0;
|
|
while ($frag < @frag) {
|
|
last if $off < $frag[$frag]->{size};
|
|
$off -= $frag[$frag++]->{size};
|
|
}
|
|
die "Cell beyond VOB data\n" unless $frag < @frag;
|
|
my $cur_off = $off;
|
|
my $cur_size = $size;
|
|
my @files;
|
|
while ($cur_size > $frag[$frag]->{size} - $cur_off) {
|
|
push @files, $frag[$frag]->{file};
|
|
$cur_size -= $frag[$frag]->{size} - $cur_off;
|
|
$cur_off = 0;
|
|
die "Cell end beyond VOB data\n" unless ++$frag < @frag;
|
|
}
|
|
push @files, $frag[$frag]->{file};
|
|
my $file = @files == 1 ? $files[0] : "concat:" . join("|", @files);
|
|
my $start = $off << 11;
|
|
my $end = ($off + $size) << 11;
|
|
$file = "subfile,,start,${start},end,${end},,:$file";
|
|
|
|
my $dur = int(1000 * $cell->{length});
|
|
$concat .= sprintf "\nfile '%s'\nduration %02d:%02d:%02d.%03d\n", $file,
|
|
int($dur / 3600000), int($dur / 60000) % 60, int($dur / 1000) % 60,
|
|
$dur % 1000;
|
|
}
|
|
|
|
print $concat;
|