9 |
# http://en.wikipedia.org/wiki/RIFF_(File_format) |
# http://en.wikipedia.org/wiki/RIFF_(File_format) |
10 |
# http://www.obrador.com/essentialjpeg/HeaderInfo.htm |
# http://www.obrador.com/essentialjpeg/HeaderInfo.htm |
11 |
# http://lists.helixcommunity.org/pipermail/datatype-dev/2005-January/001886.html |
# http://lists.helixcommunity.org/pipermail/datatype-dev/2005-January/001886.html |
12 |
|
# http://mpgedit.org/mpgedit/mpeg_format/mpeghdr.htm |
13 |
|
# http://wiki.multimedia.cx/index.php?title=IMA_ADPCM |
14 |
|
|
15 |
use strict; |
use strict; |
16 |
|
|
19 |
use File::Path; |
use File::Path; |
20 |
use Getopt::Long; |
use Getopt::Long; |
21 |
|
|
22 |
my $dump = 0; |
my $dump_amv = 0; |
23 |
|
my $dump_video = 0; |
24 |
|
my $dump_jpeg = 0; |
25 |
|
my $dump_audio = 0; |
26 |
my $debug = 0; |
my $debug = 0; |
27 |
|
my $verbose = 0; |
28 |
my $dump_dir = '/tmp/dump/'; |
my $dump_dir = '/tmp/dump/'; |
29 |
my $dump_avi = "dump.avi"; |
my $dump_avi = "dump.avi"; |
30 |
my $no_jpeg_header = 0; |
my $no_jpeg_header = 0; |
31 |
my $jpeg_q = 100; |
my $jpeg_q = 100; |
32 |
|
my $jpegtran; |
33 |
|
|
34 |
GetOptions( |
GetOptions( |
35 |
"dump!" => \$dump, |
"dump-amv!" => \$dump_amv, |
36 |
|
"dump-video!" => \$dump_video, |
37 |
|
"dump-jpeg!" => \$dump_jpeg, |
38 |
|
"dump-audio!" => \$dump_audio, |
39 |
"debug!" => \$debug, |
"debug!" => \$debug, |
40 |
"dump-dir=s" => \$dump_dir, |
"dump-dir=s" => \$dump_dir, |
41 |
"no-jpeg-headers!" => \$no_jpeg_header, |
"no-jpeg-headers!" => \$no_jpeg_header, |
42 |
|
"jpegtran=s" => \$jpegtran, |
43 |
|
"verbose!" => \$verbose, |
44 |
); |
); |
45 |
|
|
46 |
my $path = shift @ARGV || die "usage: $0 movie.amv\n"; |
my $path = shift @ARGV || die "usage: $0 movie.amv\n"; |
47 |
|
|
48 |
|
# by default, flip frames |
49 |
|
$jpegtran = '-flip vertical' unless defined($jpegtran); |
50 |
|
|
51 |
rmtree $dump_dir if -e $dump_dir; |
rmtree $dump_dir if -e $dump_dir; |
52 |
mkpath $dump_dir || die "can't create $dump_dir: $!"; |
mkpath $dump_dir || die "can't create $dump_dir: $!"; |
53 |
|
|
54 |
|
$| = 1; |
55 |
|
|
56 |
open(my $fh, '<', $path) || die "can't open $path: $!"; |
open(my $fh, '<', $path) || die "can't open $path: $!"; |
57 |
|
|
58 |
# offset in file |
# offset in file |
62 |
my $d; |
my $d; |
63 |
|
|
64 |
sub hex_dump { |
sub hex_dump { |
|
return unless $dump; |
|
|
|
|
65 |
my ( $bytes, $offset ) = @_; |
my ( $bytes, $offset ) = @_; |
66 |
return unless $bytes; |
return unless $bytes; |
67 |
|
|
103 |
my $r_len = length($bytes); |
my $r_len = length($bytes); |
104 |
confess "read $r_len bytes, expected $len" if $len != $r_len; |
confess "read $r_len bytes, expected $len" if $len != $r_len; |
105 |
|
|
106 |
hex_dump( $bytes ); |
if ( $dump_amv ) { |
107 |
|
print "## raw $len bytes\n"; |
108 |
|
hex_dump( $bytes ); |
109 |
|
} |
110 |
|
|
111 |
if ( $bytes eq 'AMV_END_' ) { |
if ( $bytes eq 'AMV_END_' ) { |
112 |
print "> end of file marker AMV_END_\n" if $dump; |
print "> end of file marker AMV_END_\n" if $dump_video; |
113 |
$d->{eof}++; |
$d->{eof}++; |
114 |
return; |
return; |
115 |
} |
} |
123 |
} |
} |
124 |
} |
} |
125 |
|
|
126 |
|
# my $len = next_part( 'boob' ); |
127 |
|
# my ( $len, $part ) = next_part(); |
128 |
|
|
129 |
sub next_part { |
sub next_part { |
130 |
my ( $expected_part, $expected_len, $skip ) = @_; |
my ( $expected_part, $expected_len, $skip ) = @_; |
131 |
my ( $part, $len ) = x(8,'A4V'); |
my ( $part, $len ) = x(8,'A4V'); |
132 |
return unless $len; |
return unless $len; |
133 |
confess "not $expected_part but $part" if $expected_part ne $part; |
confess "not $expected_part but $part" if $expected_part && $expected_part ne $part; |
134 |
if ( $expected_len ) { |
if ( $expected_len ) { |
135 |
confess "expected $expected_len bytes for $part got $len" if $len != $expected_len; |
confess "expected $expected_len bytes for $part got $len" if $len != $expected_len; |
136 |
} |
} |
137 |
printf "<< %s - %d 0x%x bytes\n", $part, $len, $len; |
printf "## next_part %s - %d 0x%x bytes\n", $part, $len, $len if $debug; |
138 |
x($len) if $skip; |
x($len) if $skip; |
139 |
|
return ( $len, $part ) if wantarray; |
140 |
return $len; |
return $len; |
141 |
} |
} |
142 |
|
|
153 |
$out .= chr($t); |
$out .= chr($t); |
154 |
} |
} |
155 |
|
|
156 |
if ( $dump ) { |
if ( $dump_video ) { |
157 |
print "## quantization table original\n"; |
print "## quantization table original\n"; |
158 |
hex_dump( $in ); |
hex_dump( $in ); |
159 |
print "## quantization table for $jpeg_q %\n"; |
print "## quantization table for $jpeg_q %\n"; |
178 |
|
|
179 |
if ( $#subframes < ( $join_subframes - 1 ) ) { |
if ( $#subframes < ( $join_subframes - 1 ) ) { |
180 |
push @subframes, $data; |
push @subframes, $data; |
181 |
print "## saved $frame_nr/", $#subframes + 1, " subframe of ", length($data), " bytes\n"; |
print "## saved $frame_nr/", $#subframes + 1, " subframe of ", length($data), " bytes\n" if $debug; |
182 |
return; |
return; |
183 |
} |
} |
184 |
|
|
|
my $path = sprintf("$dump_dir/%04d.jpg", $frame_nr++ ); |
|
|
|
|
|
open(my $fh, '>', $path) || die "can't create $path: $!"; |
|
|
|
|
185 |
my $w = $d->{amvh}->{width} || die "no width?"; |
my $w = $d->{amvh}->{width} || die "no width?"; |
186 |
my $h = $d->{amvh}->{height} || confess "no height?"; |
my $h = $d->{amvh}->{height} || confess "no height?"; |
187 |
|
|
304 |
0, # Ah, Ai (not used) |
0, # Ah, Ai (not used) |
305 |
); |
); |
306 |
|
|
307 |
if ( $dump ) { |
if ( $dump_jpeg ) { |
308 |
print "## created JPEG header...\n"; |
print "## created JPEG header...\n"; |
309 |
hex_dump( $header, 0 ); |
hex_dump( $header, 0 ); |
310 |
} |
} |
312 |
my $frame = join('', @subframes ) . $data; |
my $frame = join('', @subframes ) . $data; |
313 |
@subframes = (); |
@subframes = (); |
314 |
|
|
315 |
|
my $path = sprintf("$dump_dir/%04d.jpg", $frame_nr ); |
316 |
|
|
317 |
|
my $fh; |
318 |
|
if ( $jpegtran ) { |
319 |
|
open($fh, '|-', "jpegtran $jpegtran > $path") || die "can't create $path: $!"; |
320 |
|
} else { |
321 |
|
open($fh, '>', $path) || die "can't create $path: $!"; |
322 |
|
} |
323 |
|
|
324 |
if ( ! $no_jpeg_header ) { |
if ( ! $no_jpeg_header ) { |
325 |
print $fh $header, $frame, "\xFF\xD9" || die "can't write jpeg $path: $!"; |
print $fh $header . $frame . "\xFF\xD9" || die "can't write jpeg $path: $!"; |
326 |
} else { |
} else { |
327 |
print $fh $frame || die "can't write raw jpeg $path: $!"; |
print $fh $frame || die "can't write raw jpeg $path: $!"; |
328 |
} |
} |
329 |
close $fh || die "can't close $path: $!"; |
close $fh || die "can't close $path: $!"; |
330 |
print ">> created $frame_nr ", $no_jpeg_header ? 'raw' : '', " jpeg $path ", -s $path, " bytes\n"; |
print ">> created $frame_nr ", $no_jpeg_header ? 'raw' : '', " jpeg $path ", -s $path, " bytes\n" if $verbose; |
331 |
|
} |
332 |
|
|
333 |
|
# |
334 |
|
# IMA ADPCM decoder |
335 |
|
# |
336 |
|
|
337 |
|
my @index_adjust = ( -1, -1, -1, -1, 2, 4, 6, 8 ); |
338 |
|
|
339 |
|
my @step_size = ( |
340 |
|
7, 8, 9, 10, 11, 12, 13, 14, 16, 17, |
341 |
|
19, 21, 23, 25, 28, 31, 34, 37, 41, 45, |
342 |
|
50, 55, 60, 66, 73, 80, 88, 97, 107, 118, |
343 |
|
130, 143, 157, 173, 190, 209, 230, 253, 279, 307, |
344 |
|
337, 371, 408, 449, 494, 544, 598, 658, 724, 796, |
345 |
|
876, 963, 1060, 1166, 1282, 1411, 1552, 1707, 1878, 2066, |
346 |
|
2272, 2499, 2749, 3024, 3327, 3660, 4026, 4428, 4871, 5358, |
347 |
|
5894, 6484, 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899, |
348 |
|
15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794, 32767 |
349 |
|
); |
350 |
|
|
351 |
|
my $pred_val = 0; |
352 |
|
my $step_idx = 0; |
353 |
|
|
354 |
|
# This code is "borrowed" from the ALSA library |
355 |
|
# http://www.alsa-project.org |
356 |
|
|
357 |
|
sub adpcm_decode_sample { |
358 |
|
my $code = shift; |
359 |
|
|
360 |
|
my $pred_diff; # Predicted difference to next sample |
361 |
|
my $step; # holds previous step_size value |
362 |
|
|
363 |
|
# Separate sign and magnitude |
364 |
|
my $sign = $code & 0x8; |
365 |
|
$code &= 0x7; |
366 |
|
|
367 |
|
# Computes pred_diff = (code + 0.5) * step / 4, |
368 |
|
# but see comment in adpcm_coder. |
369 |
|
|
370 |
|
$step = $step_size[$step_idx] || die "no step_size[$step_idx]"; |
371 |
|
|
372 |
|
# Compute difference and new predicted value |
373 |
|
$pred_diff = $step >> 3; |
374 |
|
my $i = 0x4; |
375 |
|
while( $i ) { |
376 |
|
if ($code & $i) { |
377 |
|
$pred_diff += $step; |
378 |
|
} |
379 |
|
$i >>= 1; |
380 |
|
$step >>= 1; |
381 |
|
} |
382 |
|
$pred_val += $sign ? -$pred_diff : $pred_diff; |
383 |
|
|
384 |
|
# Clamp output value |
385 |
|
if ($pred_val > 32767) { |
386 |
|
$pred_val = 32767; |
387 |
|
} elsif ($pred_val < -32768) { |
388 |
|
$pred_val = -32768; |
389 |
|
} |
390 |
|
|
391 |
|
# Find new step_size index value |
392 |
|
$step_idx += $index_adjust[$code]; |
393 |
|
|
394 |
|
if ($step_idx < 0) { |
395 |
|
$step_idx = 0; |
396 |
|
} elsif ($step_idx > 88) { |
397 |
|
$step_idx = 88; |
398 |
|
} |
399 |
|
return $pred_val; |
400 |
} |
} |
401 |
|
|
402 |
|
my $au_path = "$dump_dir/sound.au"; |
403 |
|
open(my $au_fh, '>', $au_path) || die "can't open $au_path: $!"; |
404 |
|
print $au_fh pack 'a4N5', ( |
405 |
|
# magic |
406 |
|
'.snd', |
407 |
|
# data offset |
408 |
|
24, |
409 |
|
# data size |
410 |
|
-1, |
411 |
|
# encoding - 16-bit linear PCM |
412 |
|
3, |
413 |
|
# sample rate |
414 |
|
22050, |
415 |
|
#channels |
416 |
|
1, |
417 |
|
); |
418 |
|
|
419 |
|
sub audio_frame { |
420 |
|
my $data = shift || die "no data?"; |
421 |
|
|
422 |
|
my ( $origin, $index, $bytes ) = unpack 'ssL', substr($data,0,8); |
423 |
|
|
424 |
|
$pred_val = $origin; |
425 |
|
$step_idx = $index; |
426 |
|
|
427 |
|
my $size = 0; |
428 |
|
|
429 |
|
foreach my $b ( map { ord($_) } split(//, substr($data,8)) ) { |
430 |
|
print $au_fh pack 'n', adpcm_decode_sample( $b >> 4 ); |
431 |
|
print $au_fh pack 'n', adpcm_decode_sample( $b & 15 ); |
432 |
|
$size += 2; |
433 |
|
} |
434 |
|
|
435 |
|
warn "length isn't corrent $bytes != $size" if $bytes != $size; |
436 |
|
} |
437 |
|
|
438 |
|
# |
439 |
|
# read AMV file |
440 |
|
# |
441 |
|
|
442 |
my ( $riff, $amv ) = x(12, 'Z4x4Z4'); |
my ( $riff, $amv ) = x(12, 'Z4x4Z4'); |
443 |
die "$path not RIFF but $riff" if $riff ne 'RIFF'; |
die "$path not RIFF but $riff" if $riff ne 'RIFF'; |
444 |
die "$path not AMV but $amv" if $amv ne 'AMV '; |
die "$path not AMV but $amv" if $amv ne 'AMV '; |
445 |
|
|
446 |
|
my $fps = 16; |
447 |
|
my $duration; |
448 |
|
|
449 |
while ( ! defined($d->{eof}) ) { |
while ( ! defined($d->{eof}) ) { |
450 |
my ( $list, $name ) = x(12,'A4x4A4'); |
my ( $list, $name ) = x(12,'A4x4A4'); |
451 |
die "not LIST but $list" if $list ne 'LIST'; |
die "not LIST but $list" if $list ne 'LIST'; |
452 |
print "< $list * $name\n"; |
print "< $list * $name\n" if $verbose; |
453 |
|
|
454 |
if ( $name eq 'hdrl' ) { |
if ( $name eq 'hdrl' ) { |
455 |
|
|
463 |
$h->{$n} = $v; |
$h->{$n} = $v; |
464 |
} x($len, 'Vx28VVVx8CCv'); |
} x($len, 'Vx28VVVx8CCv'); |
465 |
|
|
466 |
printf "## %s %d*%d %s fps (%d ms/frame) %02d:%02d:%02d\n", |
$duration = sprintf('%02d:%02d:%02d', $h->{hh}, $h->{mm}, $h->{ss} ); |
467 |
|
|
468 |
|
printf "## %s %d*%d %s fps (%d ms/frame) %s\n", |
469 |
$path, |
$path, |
470 |
$h->{width}, $h->{height}, $h->{fps}, $h->{ms_per_frame}, |
$h->{width}, $h->{height}, $h->{fps}, $h->{ms_per_frame}, |
471 |
$h->{hh}, $h->{mm}, $h->{ss}; |
$duration; |
472 |
|
|
473 |
$d->{amvh} = $h; |
$d->{amvh} = $h; |
474 |
|
$fps = $h->{fps}; |
475 |
|
|
476 |
} elsif ( $name eq 'strl' ) { |
} elsif ( $name eq 'strl' ) { |
477 |
|
|
480 |
|
|
481 |
} elsif ( $name eq 'movi' ) { |
} elsif ( $name eq 'movi' ) { |
482 |
|
|
483 |
while (1) { |
my $have_parts = 1; |
484 |
|
|
485 |
|
while ( $have_parts ) { |
486 |
my $frame = $d->{movi}++; |
my $frame = $d->{movi}++; |
|
|
|
|
my $len = next_part( '00dc' ); |
|
|
last unless $len; |
|
|
printf "<< %s 00dc - frame %d jpeg %d 0x%x bytes\n", $name, $frame, $len, $len; |
|
|
mkjpg( x($len) ); |
|
487 |
|
|
488 |
$len = next_part( '01wb', 0, 1 ); |
my $parts = 0; |
489 |
printf "<< %s 01wb - frame %d audio %d 0x%x bytes\n", $name, $frame, $len, $len; |
|
490 |
|
while ( $parts < 2 ) { |
491 |
|
|
492 |
|
my ( $len, $part ) = next_part(); |
493 |
|
|
494 |
|
if ( ! $len ) { |
495 |
|
$have_parts = 0; |
496 |
|
last; |
497 |
|
} |
498 |
|
|
499 |
|
if ( $part eq '00dc' ) { |
500 |
|
|
501 |
|
printf "<< %s 00dc - part %d jpeg %d 0x%x bytes\n", $name, $frame, $len, $len if $verbose; |
502 |
|
mkjpg( x($len) ); |
503 |
|
$parts++; |
504 |
|
|
505 |
|
} elsif ( $part eq '01wb' ) { |
506 |
|
printf "<< %s 01wb - part %d audio %d 0x%x bytes\n", $name, $frame, $len, $len if $verbose; |
507 |
|
|
508 |
|
my $audio_frame = x( $len ); |
509 |
|
|
510 |
|
if ( $dump_audio ) { |
511 |
|
printf "#### dumping audio frame %d 0x%x bytes\n", length($audio_frame), length($audio_frame); |
512 |
|
hex_dump( $audio_frame ); |
513 |
|
} |
514 |
|
|
515 |
|
# print $audio_fh mp3_frame; |
516 |
|
audio_frame( $audio_frame ); |
517 |
|
|
518 |
|
$parts++; |
519 |
|
} else { |
520 |
|
warn "unknown next part $part with $len bytes, skipping!"; |
521 |
|
} |
522 |
|
|
523 |
|
warn "## #$frame_nr $name $part has $parts parts\n" if $debug; |
524 |
|
} |
525 |
|
|
526 |
|
$frame_nr++; |
527 |
|
|
528 |
|
if ( $frame_nr % $fps == 0 ) { |
529 |
|
print "\n" if ( ( $frame_nr / $fps ) % 60 == 0 ); |
530 |
|
print "."; |
531 |
|
} |
532 |
}; |
}; |
533 |
|
|
534 |
} else { |
} else { |
536 |
} |
} |
537 |
} |
} |
538 |
|
|
539 |
my $cmd = "ffmpeg -i $dump_dir/%04d.jpg -r 16 -f $dump_avi"; |
my $cmd = "ffmpeg -r $fps -i $dump_dir/%04d.jpg -i $au_path -y $dump_avi"; |
540 |
system($cmd) == 0 || die "can't convert frames to avi using $cmd: $!"; |
system($cmd) == 0 || die "can't convert frames to avi using $cmd: $!"; |
541 |
|
|
542 |
|
print ">>>> created $frame_nr frames $dump_avi ", -s $dump_avi, "\n"; |