22 |
my $path = shift @ARGV || die "usage: $0 movie.amv\n"; |
my $path = shift @ARGV || die "usage: $0 movie.amv\n"; |
23 |
|
|
24 |
my $dump_dir = '/tmp/dump/'; |
my $dump_dir = '/tmp/dump/'; |
25 |
if ( ! -e $dump_dir ) { |
rmtree $dump_dir if -e $dump_dir; |
26 |
mkpath $dump_dir || die "can't create $dump_dir: $!"; |
mkpath $dump_dir || die "can't create $dump_dir: $!"; |
|
} |
|
27 |
|
|
28 |
open(my $fh, '<', $path) || die "can't open $path: $!"; |
open(my $fh, '<', $path) || die "can't open $path: $!"; |
29 |
|
|
163 |
0,0, # X,Y thumbnail |
0,0, # X,Y thumbnail |
164 |
). |
). |
165 |
#------------------------------------------------------------------ |
#------------------------------------------------------------------ |
166 |
"\xFF\xDB". # Define Quantization table marker |
"\xFF\xC0". # Start of frame |
|
"\x00\x43". # len |
|
|
"\x00". # the precision and the quantization table index |
|
|
"\x00" x 64 . |
|
|
#------------------------------------------------------------------ |
|
|
"\xFF\xC0". # Start of frame |
|
167 |
pack("ncnncc9", |
pack("ncnncc9", |
168 |
17, # len |
17, # len |
169 |
8, # sample precision in bits |
8, # sample precision in bits |
170 |
120,160, # X,Y size |
120,160, # X,Y size |
171 |
3, # number of components |
3, # number of components |
172 |
1,0x22,0, # Component ID, H+V sampling factors, Quantization table number |
1,0x21,0, # Component ID, H+V sampling factors, Quantization table number |
173 |
2,0x11,0, |
2,0x11,1, |
174 |
3,0x11,0, |
3,0x11,1, |
175 |
). |
). |
176 |
#------------------------------------------------------------------ |
#------------------------------------------------------------------ |
177 |
|
"\xFF\xDB". # Define Quantization table marker |
178 |
|
"\x00\x84". # len |
179 |
|
"\x00". # 8 bit values, (byte) table 0 |
180 |
|
"\x10\x0B\x0C\x0E\x0C". |
181 |
|
"\x0A\x10\x0E\x0D\x0E". |
182 |
|
"\x12\x11\x10\x13\x18". |
183 |
|
"\x28\x1A\x18\x16\x16". |
184 |
|
"\x18\x31\x23\x25\x1D". |
185 |
|
"\x28\x3A\x33\x3D\x3C". |
186 |
|
"\x39\x33\x38\x37\x40". |
187 |
|
"\x48\x5C\x4E\x40\x44". |
188 |
|
"\x57\x45\x37\x38\x50". |
189 |
|
"\x6D\x51\x57\x5F\x62". |
190 |
|
"\x67\x68\x67\x3E\x4D". |
191 |
|
"\x71\x79\x70\x64\x78". |
192 |
|
"\x5C\x65\x67\x63". |
193 |
|
"\x01". # 8 bit values, (byte) table 1 |
194 |
|
"\x11\x12\x12\x18\x15". |
195 |
|
"\x18\x2F\x1A\x1A\x2F". |
196 |
|
"\x63\x42\x38\x42\x63". |
197 |
|
"\x63\x63\x63\x63\x63". |
198 |
|
"\x63\x63\x63\x63\x63". |
199 |
|
"\x63\x63\x63\x63\x63". |
200 |
|
"\x63\x63\x63\x63\x63". |
201 |
|
"\x63\x63\x63\x63\x63". |
202 |
|
"\x63\x63\x63\x63\x63". |
203 |
|
"\x63\x63\x63\x63\x63". |
204 |
|
"\x63\x63\x63\x63\x63". |
205 |
|
"\x63\x63\x63\x63\x63". |
206 |
|
"\x63\x63\x63\x63". |
207 |
|
#------------------------------------------------------------------ |
208 |
# huffman("\x00"). # 0 DC |
# huffman("\x00"). # 0 DC |
209 |
huffman("\x01"). # 1 DC |
# huffman("\x01"). # 1 DC |
210 |
# huffman("\x10"). # 0 AC |
# huffman("\x10"). # 0 AC |
211 |
# huffman("\x11"). # 1 AC |
# huffman("\x11"). # 1 AC |
212 |
#------------------------------------------------------------------ |
#------------------------------------------------------------------ |
213 |
|
# Define huffman table (section B.2.4.1) |
214 |
|
"\xFF\xC4". # Marker |
215 |
|
"\x00\x1F". # Length (31 bytes) |
216 |
|
"\x00". # DC, (byte) table 0 |
217 |
|
"\x00\x01\x05\x01\x01". |
218 |
|
"\x01\x01\x01\x01\x00". |
219 |
|
"\x00\x00\x00\x00\x00". |
220 |
|
"\x00\x00\x01\x02\x03". |
221 |
|
"\x04\x05\x06\x07\x08". |
222 |
|
"\x09\x0A\x0B". |
223 |
|
# Define huffman table (section B.2.4.1) |
224 |
|
"\xFF\xC4". # Marker |
225 |
|
"\x00\xB5". # Length (181 bytes) |
226 |
|
"\x10". # AC, (byte) table 0 |
227 |
|
"\x00\x02\x01\x03\x03". |
228 |
|
"\x02\x04\x03\x05\x05". |
229 |
|
"\x04\x04\x00\x00\x01". |
230 |
|
"\x7D\x01\x02\x03\x00". |
231 |
|
"\x04\x11\x05\x12\x21". |
232 |
|
"\x31\x41\x06\x13\x51". |
233 |
|
"\x61\x07\x22\x71\x14". |
234 |
|
"\x32\x81\x91\xA1\x08". |
235 |
|
"\x23\x42\xB1\xC1\x15". |
236 |
|
"\x52\xD1\xF0\x24\x33". |
237 |
|
"\x62\x72\x82\x09\x0A". |
238 |
|
"\x16\x17\x18\x19\x1A". |
239 |
|
"\x25\x26\x27\x28\x29". |
240 |
|
"\x2A\x34\x35\x36\x37". |
241 |
|
"\x38\x39\x3A\x43\x44". |
242 |
|
"\x45\x46\x47\x48\x49". |
243 |
|
"\x4A\x53\x54\x55\x56". |
244 |
|
"\x57\x58\x59\x5A\x63". |
245 |
|
"\x64\x65\x66\x67\x68". |
246 |
|
"\x69\x6A\x73\x74\x75". |
247 |
|
"\x76\x77\x78\x79\x7A". |
248 |
|
"\x83\x84\x85\x86\x87". |
249 |
|
"\x88\x89\x8A\x92\x93". |
250 |
|
"\x94\x95\x96\x97\x98". |
251 |
|
"\x99\x9A\xA2\xA3\xA4". |
252 |
|
"\xA5\xA6\xA7\xA8\xA9". |
253 |
|
"\xAA\xB2\xB3\xB4\xB5". |
254 |
|
"\xB6\xB7\xB8\xB9\xBA". |
255 |
|
"\xC2\xC3\xC4\xC5\xC6". |
256 |
|
"\xC7\xC8\xC9\xCA\xD2". |
257 |
|
"\xD3\xD4\xD5\xD6\xD7". |
258 |
|
"\xD8\xD9\xDA\xE1\xE2". |
259 |
|
"\xE3\xE4\xE5\xE6\xE7". |
260 |
|
"\xE8\xE9\xEA\xF1\xF2". |
261 |
|
"\xF3\xF4\xF5\xF6\xF7". |
262 |
|
"\xF8\xF9\xFA". |
263 |
|
# Define huffman table (section B.2.4.1) |
264 |
|
"\xFF\xC4". # Marker |
265 |
|
"\x00\x1F". # Length (31 bytes) |
266 |
|
"\x01". # DC, (byte) table 1 |
267 |
|
"\x00\x03\x01\x01\x01". |
268 |
|
"\x01\x01\x01\x01\x01". |
269 |
|
"\x01\x00\x00\x00\x00". |
270 |
|
"\x00\x00\x01\x02\x03". |
271 |
|
"\x04\x05\x06\x07\x08". |
272 |
|
"\x09\x0A\x0B". |
273 |
|
# Define huffman table (section B.2.4.1) |
274 |
|
"\xFF\xC4". # Marker |
275 |
|
"\x00\xB5". # Length (181 bytes) |
276 |
|
"\x11". # AC, (byte) table 1 |
277 |
|
"\x00\x02\x01\x02\x04". |
278 |
|
"\x04\x03\x04\x07\x05". |
279 |
|
"\x04\x04\x00\x01\x02". |
280 |
|
"\x77\x00\x01\x02\x03". |
281 |
|
"\x11\x04\x05\x21\x31". |
282 |
|
"\x06\x12\x41\x51\x07". |
283 |
|
"\x61\x71\x13\x22\x32". |
284 |
|
"\x81\x08\x14\x42\x91". |
285 |
|
"\xA1\xB1\xC1\x09\x23". |
286 |
|
"\x33\x52\xF0\x15\x62". |
287 |
|
"\x72\xD1\x0A\x16\x24". |
288 |
|
"\x34\xE1\x25\xF1\x17". |
289 |
|
"\x18\x19\x1A\x26\x27". |
290 |
|
"\x28\x29\x2A\x35\x36". |
291 |
|
"\x37\x38\x39\x3A\x43". |
292 |
|
"\x44\x45\x46\x47\x48". |
293 |
|
"\x49\x4A\x53\x54\x55". |
294 |
|
"\x56\x57\x58\x59\x5A". |
295 |
|
"\x63\x64\x65\x66\x67". |
296 |
|
"\x68\x69\x6A\x73\x74". |
297 |
|
"\x75\x76\x77\x78\x79". |
298 |
|
"\x7A\x82\x83\x84\x85". |
299 |
|
"\x86\x87\x88\x89\x8A". |
300 |
|
"\x92\x93\x94\x95\x96". |
301 |
|
"\x97\x98\x99\x9A\xA2". |
302 |
|
"\xA3\xA4\xA5\xA6\xA7". |
303 |
|
"\xA8\xA9\xAA\xB2\xB3". |
304 |
|
"\xB4\xB5\xB6\xB7\xB8". |
305 |
|
"\xB9\xBA\xC2\xC3\xC4". |
306 |
|
"\xC5\xC6\xC7\xC8\xC9". |
307 |
|
"\xCA\xD2\xD3\xD4\xD5". |
308 |
|
"\xD6\xD7\xD8\xD9\xDA". |
309 |
|
"\xE2\xE3\xE4\xE5\xE6". |
310 |
|
"\xE7\xE8\xE9\xEA\xF2". |
311 |
|
"\xF3\xF4\xF5\xF6\xF7". |
312 |
|
"\xF8\xF9\xFA". |
313 |
|
#------------------------------------------------------------------ |
314 |
"\xFF\xDA". # Start of Scan marker |
"\xFF\xDA". # Start of Scan marker |
315 |
pack("nC11", |
pack("nC11", |
316 |
12, # length |
12, # length |
317 |
3, # number of components |
3, # number of components |
318 |
1,0, # components DC+AC table numbers |
1,0x00, # Scan 1: use DC/AC huff tables 0/0 |
319 |
2,17, |
2,0x11, # Scan 2: use DC/AC huff tables 1/1 |
320 |
3,17, |
3,0x11, # Scan 3: use DC/AC huff tables 1/1 |
321 |
0,63, # Ss, Se |
0,0x3f, # Ss, Se |
322 |
0,165, # Ah, Ai |
0, # Ah, Ai (not used) |
323 |
); |
); |
324 |
#------------------------------------------------------------------ |
#------------------------------------------------------------------ |
325 |
|
|
326 |
|
|
327 |
warn "## created JPEG header...", dump( $header ); |
if ( $dump ) { |
328 |
hex_dump( $header, 0 ); |
warn "## created JPEG header...\n"; |
329 |
|
hex_dump( $header, 0 ); |
330 |
|
} |
331 |
|
|
332 |
print $fh $header . $data || die "can't write frame into $path: $!"; |
print $fh $header || die "can't write header into $path: $!"; |
333 |
|
print $fh $data || die "can't write frame into $path: $!"; |
334 |
close $fh || die "can't close $path: $!"; |
close $fh || die "can't close $path: $!"; |
335 |
print ">> created $path ", -s $path, " bytes\n"; |
print ">> created $path ", -s $path, " bytes\n"; |
336 |
} |
} |