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 |
|
|
14 |
use strict; |
use strict; |
15 |
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|
20 |
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|
21 |
my $dump = 0; |
my $dump = 0; |
22 |
my $debug = 0; |
my $debug = 0; |
23 |
|
my $verbose = 0; |
24 |
my $dump_dir = '/tmp/dump/'; |
my $dump_dir = '/tmp/dump/'; |
25 |
my $dump_avi = "dump.avi"; |
my $dump_avi = "dump.avi"; |
26 |
my $no_jpeg_header = 0; |
my $no_jpeg_header = 0; |
27 |
my $jpeg_q = 100; |
my $jpeg_q = 100; |
28 |
my $jpegtran = '-flip vertical'; |
my $jpegtran; |
29 |
|
|
30 |
GetOptions( |
GetOptions( |
31 |
"dump!" => \$dump, |
"dump!" => \$dump, |
32 |
"debug!" => \$debug, |
"debug!" => \$debug, |
33 |
"dump-dir=s" => \$dump_dir, |
"dump-dir=s" => \$dump_dir, |
34 |
"no-jpeg-headers!" => \$no_jpeg_header, |
"no-jpeg-headers!" => \$no_jpeg_header, |
35 |
"jpegtran=s" => \$jpegtran |
"jpegtran=s" => \$jpegtran, |
36 |
|
"verbose!" => \$verbose, |
37 |
); |
); |
38 |
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|
39 |
my $path = shift @ARGV || die "usage: $0 movie.amv\n"; |
my $path = shift @ARGV || die "usage: $0 movie.amv\n"; |
40 |
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|
41 |
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# by default, flip frames |
42 |
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#$jpegtran = '-flip vertical' unless defined($jpegtran); |
43 |
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|
44 |
rmtree $dump_dir if -e $dump_dir; |
rmtree $dump_dir if -e $dump_dir; |
45 |
mkpath $dump_dir || die "can't create $dump_dir: $!"; |
mkpath $dump_dir || die "can't create $dump_dir: $!"; |
121 |
if ( $expected_len ) { |
if ( $expected_len ) { |
122 |
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; |
123 |
} |
} |
124 |
printf "<< %s - %d 0x%x bytes\n", $part, $len, $len; |
printf "## next_part %s - %d 0x%x bytes\n", $part, $len, $len if $debug; |
125 |
x($len) if $skip; |
x($len) if $skip; |
126 |
return $len; |
return $len; |
127 |
} |
} |
149 |
return $out; |
return $out; |
150 |
} |
} |
151 |
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|
152 |
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sub mp3_frame { |
153 |
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my $frame = join('', |
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# Frame sync (all bits set) |
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1 x 11 . |
156 |
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# MPEG Audio version ID |
157 |
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# 00 - MPEG Version 2.5 (unofficial) |
158 |
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# 01 - reserved |
159 |
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# 10 - MPEG Version 2 (ISO/IEC 13818-3) |
160 |
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# 11 - MPEG Version 1 (ISO/IEC 11172-3) |
161 |
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1,0, |
162 |
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# Layer description |
163 |
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# 00 - reserved |
164 |
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# 01 - Layer III |
165 |
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# 10 - Layer II |
166 |
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# 11 - Layer I |
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0,1, |
168 |
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# Protection bit |
169 |
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# 0 - Protected by CRC (16bit crc follows header) |
170 |
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# 1 - Not protected |
171 |
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0, |
172 |
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# Bitrate index |
173 |
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0,0,0,0, |
174 |
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# Sampling rate frequency index (22050) |
175 |
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0,0, |
176 |
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# Padding bit |
177 |
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# 0 - frame is not padded |
178 |
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# 1 - frame is padded with one extra slot |
179 |
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0, |
180 |
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# Private bit |
181 |
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0, |
182 |
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# Channel Mode |
183 |
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# 00 - Stereo |
184 |
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# 01 - Joint stereo (Stereo) |
185 |
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# 10 - Dual channel (2 mono channels) |
186 |
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# 11 - Single channel (Mono) |
187 |
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1,1, |
188 |
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# Mode extension (Only if Joint stereo) |
189 |
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0,0, |
190 |
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# Copyright |
191 |
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0, |
192 |
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# Original |
193 |
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0, |
194 |
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# Emphasis |
195 |
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# 00 - none |
196 |
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# 01 - 50/15 ms |
197 |
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# 10 - reserved |
198 |
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# 11 - CCIT J.17 |
199 |
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0,0, |
200 |
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); |
201 |
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|
202 |
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die "frame must have 32 bits, not ", length($frame), " for $frame" if length($frame) != 32; |
203 |
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204 |
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my $bits = pack("b32", $frame); |
205 |
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|
206 |
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die "packed bits must be 4 bytes, not $bits" if length($bits) != 4; |
207 |
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|
208 |
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my $t = $frame; |
209 |
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$t =~ s/(.{8})/$1 /g; |
210 |
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warn "## mp3 frame frame = $t\n"; |
211 |
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|
212 |
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return $bits; |
213 |
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} |
214 |
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|
215 |
my @subframes; |
my @subframes; |
216 |
my $frame_nr = 1; |
my $frame_nr = 1; |
217 |
|
|
227 |
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|
228 |
if ( $#subframes < ( $join_subframes - 1 ) ) { |
if ( $#subframes < ( $join_subframes - 1 ) ) { |
229 |
push @subframes, $data; |
push @subframes, $data; |
230 |
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; |
231 |
return; |
return; |
232 |
} |
} |
233 |
|
|
361 |
my $frame = join('', @subframes ) . $data; |
my $frame = join('', @subframes ) . $data; |
362 |
@subframes = (); |
@subframes = (); |
363 |
|
|
364 |
my $path = sprintf("$dump_dir/%04d.jpg", $frame_nr++ ); |
my $path = sprintf("$dump_dir/%04d.jpg", $frame_nr ); |
365 |
|
|
366 |
my $fh; |
my $fh; |
367 |
if ( $jpegtran ) { |
if ( $jpegtran ) { |
376 |
print $fh $frame || die "can't write raw jpeg $path: $!"; |
print $fh $frame || die "can't write raw jpeg $path: $!"; |
377 |
} |
} |
378 |
close $fh || die "can't close $path: $!"; |
close $fh || die "can't close $path: $!"; |
379 |
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; |
380 |
} |
} |
381 |
|
|
382 |
my ( $riff, $amv ) = x(12, 'Z4x4Z4'); |
my ( $riff, $amv ) = x(12, 'Z4x4Z4'); |
383 |
die "$path not RIFF but $riff" if $riff ne 'RIFF'; |
die "$path not RIFF but $riff" if $riff ne 'RIFF'; |
384 |
die "$path not AMV but $amv" if $amv ne 'AMV '; |
die "$path not AMV but $amv" if $amv ne 'AMV '; |
385 |
|
|
386 |
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my $apath = "$dump_dir/audio.wav"; |
387 |
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open(my $audio_fh, '>', $apath) || die "can't open audio file $apath: $!"; |
388 |
|
|
389 |
|
print $audio_fh pack 'a4Va4a4VvvVVv4', ( |
390 |
|
# header 'RIFF', size |
391 |
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'RIFF',-1, |
392 |
|
# type: 'WAVE' |
393 |
|
'WAVE', |
394 |
|
'fmt ',0x14, |
395 |
|
# format: DVI (IMA) ADPCM Wave Type |
396 |
|
0x11, |
397 |
|
# channels |
398 |
|
1, |
399 |
|
# samples/sec |
400 |
|
22050, |
401 |
|
# avg. bytes/sec (for esimation) |
402 |
|
11567, |
403 |
|
# block align (size of block) |
404 |
|
0x800, |
405 |
|
# bits per sample (mono data) |
406 |
|
4, |
407 |
|
# cbSize (ADPCM with 7 soefficient pairs) |
408 |
|
2, |
409 |
|
# nSamplesPerBlock |
410 |
|
# (((nBlockAlign - (7 * nChannels)) * 8) / (wBitsPerSample * nChannels)) + 2 |
411 |
|
0x0ff9, |
412 |
|
); |
413 |
|
|
414 |
|
print $audio_fh pack 'a4VVa4V', ( |
415 |
|
# time length of the data in samples |
416 |
|
'fact',4, |
417 |
|
220500, |
418 |
|
# |
419 |
|
'data',-1, |
420 |
|
); |
421 |
|
|
422 |
|
my $riff_header_len = tell($audio_fh); |
423 |
|
|
424 |
while ( ! defined($d->{eof}) ) { |
while ( ! defined($d->{eof}) ) { |
425 |
my ( $list, $name ) = x(12,'A4x4A4'); |
my ( $list, $name ) = x(12,'A4x4A4'); |
426 |
die "not LIST but $list" if $list ne 'LIST'; |
die "not LIST but $list" if $list ne 'LIST'; |
427 |
print "< $list * $name\n"; |
print "< $list * $name\n" if $verbose; |
428 |
|
|
429 |
if ( $name eq 'hdrl' ) { |
if ( $name eq 'hdrl' ) { |
430 |
|
|
457 |
|
|
458 |
my $len = next_part( '00dc' ); |
my $len = next_part( '00dc' ); |
459 |
last unless $len; |
last unless $len; |
460 |
printf "<< %s 00dc - frame %d jpeg %d 0x%x bytes\n", $name, $frame, $len, $len; |
printf "<< %s 00dc - part %d jpeg %d 0x%x bytes\n", $name, $frame, $len, $len if $verbose; |
461 |
mkjpg( x($len) ); |
mkjpg( x($len) ); |
462 |
|
|
463 |
$len = next_part( '01wb', 0, 1 ); |
$len = next_part( '01wb' ); |
464 |
printf "<< %s 01wb - frame %d audio %d 0x%x bytes\n", $name, $frame, $len, $len; |
printf "<< %s 01wb - part %d audio %d 0x%x bytes\n", $name, $frame, $len, $len if $verbose; |
465 |
|
|
466 |
|
my $audio_frame = x( $len ); |
467 |
|
|
468 |
|
# remove 8 bytes of something |
469 |
|
$audio_frame = substr( $audio_frame, 8 ); |
470 |
|
|
471 |
|
if ( length($audio_frame) % 2 == 0 ) { |
472 |
|
print "#### even sized frame!"; |
473 |
|
# $audio_frame = substr( $audio_frame, 0, -1 ); |
474 |
|
} |
475 |
|
|
476 |
|
if ( $dump ) { |
477 |
|
print "#### dumping audio frame ", length($audio_frame), " bytes\n"; |
478 |
|
hex_dump( $audio_frame ); |
479 |
|
} |
480 |
|
|
481 |
|
# print $audio_fh mp3_frame; |
482 |
|
print $audio_fh $audio_frame || die "can't write audio frame in $apath: $!"; |
483 |
|
|
484 |
|
$frame_nr++; |
485 |
}; |
}; |
486 |
|
|
487 |
} else { |
} else { |
492 |
my $cmd = "ffmpeg -i $dump_dir/%04d.jpg -r 16 -y $dump_avi"; |
my $cmd = "ffmpeg -i $dump_dir/%04d.jpg -r 16 -y $dump_avi"; |
493 |
system($cmd) == 0 || die "can't convert frames to avi using $cmd: $!"; |
system($cmd) == 0 || die "can't convert frames to avi using $cmd: $!"; |
494 |
|
|
495 |
|
my $size = tell($audio_fh); |
496 |
|
warn "## wav file size: $size\n"; |
497 |
|
|
498 |
|
seek( $audio_fh, 4, 0 ); |
499 |
|
print $audio_fh pack("V", $size - 8); |
500 |
|
seek( $audio_fh, $riff_header_len - 4, 0 ); |
501 |
|
print $audio_fh pack("V", $size - $riff_header_len); |
502 |
|
|
503 |
|
close($audio_fh) || die "can't close audio file $apath: $!"; |
504 |
|
|
505 |
|
print ">>>> created $frame_nr frames $dump_avi ", -s $dump_avi, " and $apath ", -s $apath, "\n"; |