* cigaes/master: lavu: add myself as dynarray.h maintainer. ffmpeg: sub2video: send a last blank frame before closing. tools: add dvd2concat. lavf/concatdec: allow to match streams by id. Merged-by: Michael Niedermayer <michaelni@gmx.at>pull/64/head
Michael Niedermayer
11 years ago
commit
3788b8dbe6
5 changed files with 237 additions and 17 deletions
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#!/usr/bin/env perl |
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# Copyright (c) 2014 Nicolas George |
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# |
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# This file is part of FFmpeg. |
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# |
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# FFmpeg is free software; you can redistribute it and/or |
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# modify it under the terms of the GNU Lesser General Public License |
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# as published by the Free Software Foundation; either |
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# version 2.1 of the License, or (at your option) any later version. |
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# |
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# FFmpeg is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU Lesser General Public License for more details. |
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# |
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# You should have received a copy of the GNU Lesser General Public License |
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# along with FFmpeg; if not, write to the Free Software Foundation, Inc., |
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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=head1 NAME |
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dvd2concat - create a concat script for a DVD title |
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=head1 SYNOPSIS |
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tools/dvd2concat I<path/to/dvd/structure> > I<file.concat> |
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=head1 DESCRIPTION |
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This script uses B<lsdvd> to produce concat script for a DVD title. |
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The resulting script can be used to play the DVD using B<ffplay>, to |
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transcode it using B<ffmpeg> or any other similar use. |
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I<path/to/dvd/structure> is the path to the DVD structure hierarchy; it |
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normally contains a directory named B<VIDEO_TS>. It must not be encrypted |
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with CSS. |
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I<file.concat> is the output file. It can be used a input to ffmpeg. |
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It will require the B<-safe 0> option. |
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=cut |
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use strict; |
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use warnings; |
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use Getopt::Long ":config" => "require_order"; |
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use Pod::Usage; |
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my $title; |
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GetOptions ( |
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"help|usage|?|h" => sub { pod2usage({ -verbose => 1, -exitval => 0 }) }, |
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"manpage|m" => sub { pod2usage({ -verbose => 2, -exitval => 0 }) }, |
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"title|t=i" => \$title, |
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) and @ARGV == 1 or pod2usage({ -verbose => 1, -exitval => 1 }); |
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my ($path) = @ARGV; |
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my $lsdvd_message = |
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"Make sure your lsdvd version has the two following patches applied:\n" . |
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"http://sourceforge.net/p/lsdvd/feature-requests/1/\n" . |
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"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=603826\n"; |
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my $lsdvd = do { |
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open my $l, "-|", "lsdvd", "-Op", "-x", $path |
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or die "You need to install lsdvd for this script to work.\n$lsdvd_message"; |
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local $/; |
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<$l>; |
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}; |
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my %lsdvd = eval $lsdvd; |
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die $@ if $@; |
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if (!defined $title) { |
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$title = $lsdvd{longest_track}; |
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warn "Using longest title $title\n"; |
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} |
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my $track = $lsdvd{track}[$title - 1] |
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or die "Title $title does not exist (1-", scalar(@{$lsdvd{track}}), ")\n"; |
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my $vts_base = sprintf "%s/VIDEO_TS/VTS_%02d_", $path, $track->{vts}; |
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my @frag; |
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for my $i (1 .. 9) { |
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my $file = sprintf "%s%d.VOB", $vts_base, $i; |
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my $size = -s $file or last; |
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push @frag, { file => $file, size => $size >> 11 }; |
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} |
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my $concat = "ffconcat version 1.0\n"; |
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$concat .= "\nstream\nexact_stream_id 0x1E0\n"; |
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for my $audio (@{$track->{audio}}) { |
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$concat .= "\nstream\nexact_stream_id " . $audio->{streamid} . "\n"; |
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} |
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for my $subp (@{$track->{subp}}) { |
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$concat .= "\nstream\nexact_stream_id " . $subp->{streamid} . "\n"; |
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} |
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for my $cell (@{$track->{cell}}) { |
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my $off = $cell->{first_sector}; |
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die "Your lsdvd version does not print cell sectors.\n$lsdvd_message" |
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unless defined $off; |
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my $size = $cell->{last_sector} + 1 - $cell->{first_sector}; |
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my $frag = 0; |
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while ($frag < @frag) { |
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last if $off < $frag[$frag]->{size}; |
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$off -= $frag[$frag++]->{size}; |
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} |
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die "Cell beyond VOB data\n" unless $frag < @frag; |
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my $cur_off = $off; |
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my $cur_size = $size; |
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my @files; |
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while ($cur_size > $frag[$frag]->{size} - $cur_off) { |
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push @files, $frag[$frag]->{file}; |
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$cur_size -= $frag[$frag]->{size} - $cur_off; |
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$cur_off = 0; |
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die "Cell end beyond VOB data\n" unless ++$frag < @frag; |
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} |
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push @files, $frag[$frag]->{file}; |
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my $file = @files == 1 ? $files[0] : "concat:" . join("|", @files); |
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my $start = $off << 11; |
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my $end = ($off + $size) << 11; |
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$file = "subfile,,start,${start},end,${end},,:$file"; |
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my $dur = int(1000 * $cell->{length}); |
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$concat .= sprintf "\nfile '%s'\nduration %02d:%02d:%02d.%03d\n", $file, |
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int($dur / 3600000), int($dur / 60000) % 60, int($dur / 1000) % 60, |
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$dur % 1000; |
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} |
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print $concat; |
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