diff --git a/tools/dvd2concat b/tools/dvd2concat new file mode 100755 index 0000000000..02371e0997 --- /dev/null +++ b/tools/dvd2concat @@ -0,0 +1,127 @@ +#!/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 > I + +=head1 DESCRIPTION + +This script uses B to produce concat script for a DVD title. +The resulting script can be used to play the DVD using B, to +transcode it using B or any other similar use. + +I is the path to the DVD structure hierarchy; it +normally contains a directory named B. It must not be encrypted +with CSS. + +I is the output file. It can be used a 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;