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#!/usr/bin/perl -w |
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|
3 |
# amv.pl |
4 |
# |
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# 07/19/07 19:21:39 CEST Dobrica Pavlinusic <dpavlin@rot13.org> |
6 |
# |
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# Various useful links used to produce this: |
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# http://www.moviecodec.com/topics/15431p1.html |
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# http://en.wikipedia.org/wiki/RIFF_(File_format) |
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# http://www.obrador.com/essentialjpeg/HeaderInfo.htm |
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# http://lists.helixcommunity.org/pipermail/datatype-dev/2005-January/001886.html |
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# http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm |
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|
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use strict; |
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|
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use Data::Dump qw/dump/; |
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use Carp qw/confess/; |
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use File::Path; |
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use Getopt::Long; |
20 |
|
21 |
my $dump_amv = 0; |
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my $dump_video = 0; |
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my $dump_jpeg = 0; |
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my $dump_audio = 0; |
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my $debug = 0; |
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my $verbose = 0; |
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my $dump_dir = '/tmp/dump/'; |
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my $dump_avi = "dump.avi"; |
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my $no_jpeg_header = 0; |
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my $jpeg_q = 100; |
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my $jpegtran; |
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|
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GetOptions( |
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"dump-amv!" => \$dump_amv, |
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"dump-video!" => \$dump_video, |
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"dump-jpeg!" => \$dump_jpeg, |
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"dump-audio!" => \$dump_audio, |
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"debug!" => \$debug, |
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"dump-dir=s" => \$dump_dir, |
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"no-jpeg-headers!" => \$no_jpeg_header, |
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"jpegtran=s" => \$jpegtran, |
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"verbose!" => \$verbose, |
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); |
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|
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my $path = shift @ARGV || die "usage: $0 movie.amv\n"; |
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|
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# by default, flip frames |
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#$jpegtran = '-flip vertical' unless defined($jpegtran); |
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|
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rmtree $dump_dir if -e $dump_dir; |
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mkpath $dump_dir || die "can't create $dump_dir: $!"; |
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|
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open(my $fh, '<', $path) || die "can't open $path: $!"; |
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|
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# offset in file |
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my $o = 0; |
57 |
|
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# shared data hash |
59 |
my $d; |
60 |
|
61 |
sub hex_dump { |
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my ( $bytes, $offset ) = @_; |
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return unless $bytes; |
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|
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my $old_o; |
66 |
if (defined($offset)) { |
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$old_o = $o; |
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$o = $offset; |
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} |
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|
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my $ascii = $bytes; |
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$ascii =~ s/\W/./gs; |
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my $hex = uc( unpack('h*', $bytes) ); |
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$hex =~ s/(..)/$1 /g; |
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# calculate number of characters for offset |
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#my $d = length( sprintf("%x",length($bytes)) ); |
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my $d = 4; |
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my $prefix = '#.'; |
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while ( $hex =~ s/^((?:\w\w\s){1,16})// ) { |
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printf "$prefix %0${d}x | %-48s| %s\n", $o, $1, substr( $ascii, 0, 16 ); |
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$prefix = '##'; |
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if ( length($ascii) >= 16 ) { |
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$ascii = substr( $ascii, 16 ); |
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$o += 16; |
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} else { |
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$o += length($ascii); |
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last; |
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} |
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} |
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|
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$o = $old_o if $old_o; |
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} |
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|
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sub x { |
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my ($len,$format) = @_; |
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|
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my $bytes; |
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read($fh, $bytes, $len); |
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|
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my $r_len = length($bytes); |
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confess "read $r_len bytes, expected $len" if $len != $r_len; |
102 |
|
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if ( $dump_amv ) { |
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print "## raw $len bytes\n"; |
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hex_dump( $bytes ); |
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} |
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|
108 |
if ( $bytes eq 'AMV_END_' ) { |
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print "> end of file marker AMV_END_\n" if $dump_video; |
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$d->{eof}++; |
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return; |
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} |
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|
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if ( $format ) { |
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my @data = unpack($format, $bytes); |
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print "## unpacked = ",dump(@data),"\n" if $debug; |
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return @data; |
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} else { |
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return $bytes; |
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} |
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} |
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|
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sub next_part { |
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my ( $expected_part, $expected_len, $skip ) = @_; |
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my ( $part, $len ) = x(8,'A4V'); |
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return unless $len; |
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confess "not $expected_part but $part" if $expected_part ne $part; |
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if ( $expected_len ) { |
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confess "expected $expected_len bytes for $part got $len" if $len != $expected_len; |
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} |
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printf "## next_part %s - %d 0x%x bytes\n", $part, $len, $len if $debug; |
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x($len) if $skip; |
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return $len; |
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} |
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|
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sub quality { |
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my @table = @_; |
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die "quantization matrice needs to have 64 bytes!" if $#table != 63; |
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|
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my $in = join('', map { chr($_) } @table ); |
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my $out; |
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|
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foreach my $t ( @table ) { |
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$t = int( ( $t * $jpeg_q ) / 100 ); |
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$t = 255 if $t > 255; |
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$out .= chr($t); |
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} |
148 |
|
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if ( $dump_video ) { |
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print "## quantization table original\n"; |
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hex_dump( $in ); |
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print "## quantization table for $jpeg_q %\n"; |
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hex_dump( $out ); |
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} |
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|
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return $out; |
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} |
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|
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sub mp3_frame { |
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my $frame = join('', |
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# Frame sync (all bits set) |
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1 x 11 . |
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# MPEG Audio version ID |
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# 00 - MPEG Version 2.5 (unofficial) |
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# 01 - reserved |
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# 10 - MPEG Version 2 (ISO/IEC 13818-3) |
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# 11 - MPEG Version 1 (ISO/IEC 11172-3) |
168 |
1,0, |
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# Layer description |
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# 00 - reserved |
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# 01 - Layer III |
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# 10 - Layer II |
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# 11 - Layer I |
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0,1, |
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# Protection bit |
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# 0 - Protected by CRC (16bit crc follows header) |
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# 1 - Not protected |
178 |
0, |
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# Bitrate index |
180 |
0,0,0,0, |
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# Sampling rate frequency index (22050) |
182 |
0,0, |
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# Padding bit |
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# 0 - frame is not padded |
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# 1 - frame is padded with one extra slot |
186 |
0, |
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# Private bit |
188 |
0, |
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# Channel Mode |
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# 00 - Stereo |
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# 01 - Joint stereo (Stereo) |
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# 10 - Dual channel (2 mono channels) |
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# 11 - Single channel (Mono) |
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1,1, |
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# Mode extension (Only if Joint stereo) |
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0,0, |
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# Copyright |
198 |
0, |
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# Original |
200 |
0, |
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# Emphasis |
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# 00 - none |
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# 01 - 50/15 ms |
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# 10 - reserved |
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# 11 - CCIT J.17 |
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0,0, |
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); |
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|
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die "frame must have 32 bits, not ", length($frame), " for $frame" if length($frame) != 32; |
210 |
|
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my $bits = pack("b32", $frame); |
212 |
|
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die "packed bits must be 4 bytes, not $bits" if length($bits) != 4; |
214 |
|
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my $t = $frame; |
216 |
$t =~ s/(.{8})/$1 /g; |
217 |
warn "## mp3 frame frame = $t\n"; |
218 |
|
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return $bits; |
220 |
} |
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|
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my @subframes; |
223 |
my $frame_nr = 1; |
224 |
|
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# how many subframes to join into single frame? |
226 |
my $join_subframes = 0; |
227 |
|
228 |
sub mkjpg { |
229 |
my ($data) = @_; |
230 |
|
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confess "no SOI marker in data" if substr($data,0,2) ne "\xFF\xD8"; |
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confess "no EOI marker in data" if substr($data,-2,2) ne "\xFF\xD9"; |
233 |
$data = substr($data,2,-2); |
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|
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if ( $#subframes < ( $join_subframes - 1 ) ) { |
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push @subframes, $data; |
237 |
print "## saved $frame_nr/", $#subframes + 1, " subframe of ", length($data), " bytes\n" if $debug; |
238 |
return; |
239 |
} |
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|
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my $w = $d->{amvh}->{width} || die "no width?"; |
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my $h = $d->{amvh}->{height} || confess "no height?"; |
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|
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my $header = |
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# Start of Image (SOI) marker |
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"\xFF\xD8". |
247 |
# JFIF marker |
248 |
"\xFF\xE0". |
249 |
pack("nZ5CCCnnCC", |
250 |
16, # length |
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'JFIF', # identifier (JFIF) |
252 |
1,1, # version |
253 |
0, # units (none) |
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1,1, # X,Y density |
255 |
0,0, # X,Y thumbnail |
256 |
). |
257 |
"\xFF\xFE". |
258 |
"\x00\x3CCREATOR: amv dumper (compat. IJG JPEG v62), quality = 100\n". |
259 |
# quantization table (quaility=100%) |
260 |
"\xFF\xDB". |
261 |
"\x00\x43". |
262 |
# 8 bit values, table 1 |
263 |
"\x00". |
264 |
quality( |
265 |
0x10, 0x0B, 0x0C, 0x0E, 0x0C, 0x0A, 0x10, 0x0E, |
266 |
0x0D, 0x0E, 0x12, 0x11, 0x10, 0x13, 0x18, 0x28, |
267 |
0x1A, 0x18, 0x16, 0x16, 0x18, 0x31, 0x23, 0x25, |
268 |
0x1D, 0x28, 0x3A, 0x33, 0x3D, 0x3C, 0x39, 0x33, |
269 |
0x38, 0x37, 0x40, 0x48, 0x5C, 0x4E, 0x40, 0x44, |
270 |
0x57, 0x45, 0x37, 0x38, 0x50, 0x6D, 0x51, 0x57, |
271 |
0x5F, 0x62, 0x67, 0x68, 0x67, 0x3E, 0x4D, 0x71, |
272 |
0x79, 0x70, 0x64, 0x78, 0x5C, 0x65, 0x67, 0x63, |
273 |
). |
274 |
"\xFF\xDB". |
275 |
"\x00\x43". |
276 |
# 8 bit values, table 1 |
277 |
"\x01". |
278 |
quality( |
279 |
0x11, 0x12, 0x12, 0x18, 0x15, 0x18, 0x2F, 0x1A, |
280 |
0x1A, 0x2F, 0x63, 0x42, 0x38, 0x42, 0x63, 0x63, |
281 |
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
282 |
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
283 |
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
284 |
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
285 |
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
286 |
0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, |
287 |
). |
288 |
# start of frame |
289 |
"\xFF\xC0". |
290 |
pack("ncnncc9", |
291 |
17, # len |
292 |
8, # sample precision in bits |
293 |
$h,$w, # X,Y size |
294 |
3, # number of components |
295 |
1,0x22,0, # Component ID, H+V sampling factors, Quantization table number |
296 |
2,0x11,1, |
297 |
3,0x11,1, |
298 |
). |
299 |
# Define huffman table (section B.2.4.1) |
300 |
"\xFF\xC4". # Marker |
301 |
"\x00\x1F". # Length (31 bytes) |
302 |
"\x00". # DC luminance, table 0 |
303 |
"\x00\x01\x05\x01\x01\x01\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00". |
304 |
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B". |
305 |
# Define huffman table (section B.2.4.1) |
306 |
"\xFF\xC4". # Marker |
307 |
"\x00\xB5". # Length (181 bytes) |
308 |
"\x10". # AC luminance, table 0 |
309 |
"\x00\x02\x01\x03\x03\x02\x04\x03\x05\x05\x04\x04\x00\x00\x01\x7D". |
310 |
"\x01\x02\x03\x00\x04\x11\x05\x12". |
311 |
"\x21\x31\x41\x06\x13\x51\x61\x07\x22\x71\x14\x32". |
312 |
"\x81\x91\xA1\x08\x23\x42\xB1\xC1\x15\x52\xD1\xF0". |
313 |
"\x24\x33\x62\x72\x82\x09\x0A\x16\x17\x18\x19\x1A". |
314 |
"\x25\x26\x27\x28\x29\x2A\x34\x35\x36\x37\x38\x39". |
315 |
"\x3A\x43\x44\x45\x46\x47\x48\x49\x4A\x53\x54\x55". |
316 |
"\x56\x57\x58\x59\x5A\x63\x64\x65\x66\x67\x68\x69". |
317 |
"\x6A\x73\x74\x75\x76\x77\x78\x79\x7A\x83\x84\x85". |
318 |
"\x86\x87\x88\x89\x8A\x92\x93\x94\x95\x96\x97\x98". |
319 |
"\x99\x9A\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xAA\xB2". |
320 |
"\xB3\xB4\xB5\xB6\xB7\xB8\xB9\xBA\xC2\xC3\xC4\xC5". |
321 |
"\xC6\xC7\xC8\xC9\xCA\xD2\xD3\xD4\xD5\xD6\xD7\xD8". |
322 |
"\xD9\xDA\xE1\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9\xEA". |
323 |
"\xF1\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\xFA". |
324 |
# Define huffman table (section B.2.4.1) |
325 |
"\xFF\xC4". # Marker |
326 |
"\x00\x1F". # Length (31 bytes) |
327 |
"\x01". # DC chrominance, table 1 |
328 |
"\x00\x03\x01\x01\x01\x01\x01\x01\x01\x01\x01\x00". |
329 |
"\x00\x00\x00\x00". |
330 |
"\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0A\x0B". |
331 |
#/* Define huffman table (section B.2.4.1) */ |
332 |
"\xFF\xC4". # Marker |
333 |
"\x00\xB5". # Length (181 bytes) |
334 |
"\x11". # AC chrominance, table 1 |
335 |
"\x00\x02\x01\x02\x04\x04\x03\x04\x07\x05\x04\x04". |
336 |
"\x00\x01\x02\x77". |
337 |
"\x00\x01\x02\x03\x11\x04\x05\x21". |
338 |
"\x31\x06\x12\x41\x51\x07\x61\x71\x13\x22\x32\x81". |
339 |
"\x08\x14\x42\x91\xA1\xB1\xC1\x09\x23\x33\x52\xF0". |
340 |
"\x15\x62\x72\xD1\x0A\x16\x24\x34\xE1\x25\xF1\x17". |
341 |
"\x18\x19\x1A\x26\x27\x28\x29\x2A\x35\x36\x37\x38". |
342 |
"\x39\x3A\x43\x44\x45\x46\x47\x48\x49\x4A\x53\x54". |
343 |
"\x55\x56\x57\x58\x59\x5A\x63\x64\x65\x66\x67\x68". |
344 |
"\x69\x6A\x73\x74\x75\x76\x77\x78\x79\x7A\x82\x83". |
345 |
"\x84\x85\x86\x87\x88\x89\x8A\x92\x93\x94\x95\x96". |
346 |
"\x97\x98\x99\x9A\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9". |
347 |
"\xAA\xB2\xB3\xB4\xB5\xB6\xB7\xB8\xB9\xBA\xC2\xC3". |
348 |
"\xC4\xC5\xC6\xC7\xC8\xC9\xCA\xD2\xD3\xD4\xD5\xD6". |
349 |
"\xD7\xD8\xD9\xDA\xE2\xE3\xE4\xE5\xE6\xE7\xE8\xE9". |
350 |
"\xEA\xF2\xF3\xF4\xF5\xF6\xF7\xF8\xF9\xFA". |
351 |
# Start of Scan marker |
352 |
"\xFF\xDA". |
353 |
pack("nC10", |
354 |
12, # length |
355 |
3, # number of components |
356 |
1,0x00, # Scan 1: use DC/AC huff tables 0/0 |
357 |
2,0x11, # Scan 2: use DC/AC huff tables 1/1 |
358 |
3,0x11, # Scan 3: use DC/AC huff tables 1/1 |
359 |
0,0x3f, # Ss, Se |
360 |
0, # Ah, Ai (not used) |
361 |
); |
362 |
|
363 |
if ( $dump_jpeg ) { |
364 |
print "## created JPEG header...\n"; |
365 |
hex_dump( $header, 0 ); |
366 |
} |
367 |
|
368 |
my $frame = join('', @subframes ) . $data; |
369 |
@subframes = (); |
370 |
|
371 |
my $path = sprintf("$dump_dir/%04d.jpg", $frame_nr ); |
372 |
|
373 |
my $fh; |
374 |
if ( $jpegtran ) { |
375 |
open($fh, '|-', "jpegtran $jpegtran > $path") || die "can't create $path: $!"; |
376 |
} else { |
377 |
open($fh, '>', $path) || die "can't create $path: $!"; |
378 |
} |
379 |
|
380 |
if ( ! $no_jpeg_header ) { |
381 |
print $fh $header . $frame . "\xFF\xD9" || die "can't write jpeg $path: $!"; |
382 |
} else { |
383 |
print $fh $frame || die "can't write raw jpeg $path: $!"; |
384 |
} |
385 |
close $fh || die "can't close $path: $!"; |
386 |
print ">> created $frame_nr ", $no_jpeg_header ? 'raw' : '', " jpeg $path ", -s $path, " bytes\n" if $verbose; |
387 |
} |
388 |
|
389 |
my ( $riff, $amv ) = x(12, 'Z4x4Z4'); |
390 |
die "$path not RIFF but $riff" if $riff ne 'RIFF'; |
391 |
die "$path not AMV but $amv" if $amv ne 'AMV '; |
392 |
|
393 |
my $apath = "$dump_dir/audio.wav"; |
394 |
open(my $audio_fh, '>', $apath) || die "can't open audio file $apath: $!"; |
395 |
|
396 |
print $audio_fh pack 'a4Va4a4VvvVVv4', ( |
397 |
# header 'RIFF', size |
398 |
'RIFF',-1, |
399 |
# type: 'WAVE' |
400 |
'WAVE', |
401 |
'fmt ',0x14, |
402 |
# format: DVI (IMA) ADPCM Wave Type |
403 |
0x11, |
404 |
# channels |
405 |
1, |
406 |
# samples/sec |
407 |
22050, |
408 |
# avg. bytes/sec (for esimation) |
409 |
11567, |
410 |
# block align (size of block) |
411 |
0x800, |
412 |
# bits per sample (mono data) |
413 |
4, |
414 |
# cbSize (ADPCM with 7 soefficient pairs) |
415 |
2, |
416 |
# nSamplesPerBlock |
417 |
# (((nBlockAlign - (7 * nChannels)) * 8) / (wBitsPerSample * nChannels)) + 2 |
418 |
0x0ff9, |
419 |
); |
420 |
|
421 |
print $audio_fh pack 'a4VVa4V', ( |
422 |
# time length of the data in samples |
423 |
'fact',4, |
424 |
220500, |
425 |
# |
426 |
'data',-1, |
427 |
); |
428 |
|
429 |
my $riff_header_len = tell($audio_fh); |
430 |
|
431 |
while ( ! defined($d->{eof}) ) { |
432 |
my ( $list, $name ) = x(12,'A4x4A4'); |
433 |
die "not LIST but $list" if $list ne 'LIST'; |
434 |
print "< $list * $name\n" if $verbose; |
435 |
|
436 |
if ( $name eq 'hdrl' ) { |
437 |
|
438 |
my $len = next_part( 'amvh', hex(38) ); |
439 |
|
440 |
my @names = ( qw/ms_per_frame width height fps ss mm hh/ ); |
441 |
my $h; |
442 |
map { |
443 |
my $v = $_; |
444 |
my $n = shift @names || die "no more names?"; |
445 |
$h->{$n} = $v; |
446 |
} x($len, 'Vx28VVVx8CCv'); |
447 |
|
448 |
printf "## %s %d*%d %s fps (%d ms/frame) %02d:%02d:%02d\n", |
449 |
$path, |
450 |
$h->{width}, $h->{height}, $h->{fps}, $h->{ms_per_frame}, |
451 |
$h->{hh}, $h->{mm}, $h->{ss}; |
452 |
|
453 |
$d->{amvh} = $h; |
454 |
|
455 |
} elsif ( $name eq 'strl' ) { |
456 |
|
457 |
next_part( 'strh', 0, 1 ); |
458 |
next_part( 'strf', 0, 1 ); |
459 |
|
460 |
} elsif ( $name eq 'movi' ) { |
461 |
|
462 |
while (1) { |
463 |
my $frame = $d->{movi}++; |
464 |
|
465 |
my $len = next_part( '00dc' ); |
466 |
last unless $len; |
467 |
printf "<< %s 00dc - part %d jpeg %d 0x%x bytes\n", $name, $frame, $len, $len if $verbose; |
468 |
mkjpg( x($len) ); |
469 |
|
470 |
$len = next_part( '01wb' ); |
471 |
printf "<< %s 01wb - part %d audio %d 0x%x bytes\n", $name, $frame, $len, $len if $verbose; |
472 |
|
473 |
my $audio_frame = x( $len ); |
474 |
|
475 |
if ( $dump_audio ) { |
476 |
printf "#### dumping audio frame %d 0x%x bytes\n", length($audio_frame), length($audio_frame); |
477 |
hex_dump( $audio_frame ); |
478 |
} |
479 |
|
480 |
# remove 8 bytes of something |
481 |
$audio_frame = substr( $audio_frame, 8 ); |
482 |
|
483 |
if ( length($audio_frame) % 2 == 0 ) { |
484 |
print "#### even sized frame!"; |
485 |
# $audio_frame = substr( $audio_frame, 0, -1 ); |
486 |
} |
487 |
|
488 |
# print $audio_fh mp3_frame; |
489 |
print $audio_fh $audio_frame || die "can't write audio frame in $apath: $!"; |
490 |
|
491 |
$frame_nr++; |
492 |
}; |
493 |
|
494 |
} else { |
495 |
die "unknown $list $name"; |
496 |
} |
497 |
} |
498 |
|
499 |
my $cmd = "ffmpeg -i $dump_dir/%04d.jpg -r 16 -y $dump_avi"; |
500 |
system($cmd) == 0 || die "can't convert frames to avi using $cmd: $!"; |
501 |
|
502 |
my $size = tell($audio_fh); |
503 |
warn "## wav file size: $size\n"; |
504 |
|
505 |
seek( $audio_fh, 4, 0 ); |
506 |
print $audio_fh pack("V", $size - 8); |
507 |
seek( $audio_fh, $riff_header_len - 4, 0 ); |
508 |
print $audio_fh pack("V", $size - $riff_header_len); |
509 |
|
510 |
close($audio_fh) || die "can't close audio file $apath: $!"; |
511 |
|
512 |
print ">>>> created $frame_nr frames $dump_avi ", -s $dump_avi, " and $apath ", -s $apath, "\n"; |