cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % M M PPPP EEEEE GGGG % |
| 7 | % MM MM P P E G % |
| 8 | % M M M PPPP EEE G GG % |
| 9 | % M M P E G G % |
| 10 | % M M P EEEEE GGGG % |
| 11 | % % |
| 12 | % % |
| 13 | % Read/Write MPEG Image Format % |
| 14 | % % |
| 15 | % Software Design % |
cristy | de984cd | 2013-12-01 14:49:27 +0000 | [diff] [blame] | 16 | % Cristy % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 17 | % July 1999 % |
| 18 | % % |
| 19 | % % |
Cristy | f6ff9ea | 2016-12-05 09:53:35 -0500 | [diff] [blame] | 20 | % Copyright 1999-2017 ImageMagick Studio LLC, a non-profit organization % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 21 | % dedicated to making software imaging solutions freely available. % |
| 22 | % % |
| 23 | % You may not use this file except in compliance with the License. You may % |
| 24 | % obtain a copy of the License at % |
| 25 | % % |
Cristy | f19d414 | 2017-04-24 11:34:30 -0400 | [diff] [blame^] | 26 | % https://www.imagemagick.org/script/license.php % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 27 | % % |
| 28 | % Unless required by applicable law or agreed to in writing, software % |
| 29 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 30 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 31 | % See the License for the specific language governing permissions and % |
| 32 | % limitations under the License. % |
| 33 | % % |
| 34 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 35 | % |
| 36 | % |
| 37 | */ |
| 38 | /* |
| 39 | Include declarations. |
| 40 | */ |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 41 | #include "MagickCore/studio.h" |
| 42 | #include "MagickCore/blob.h" |
| 43 | #include "MagickCore/blob-private.h" |
| 44 | #include "MagickCore/constitute.h" |
| 45 | #include "MagickCore/delegate.h" |
| 46 | #include "MagickCore/exception.h" |
| 47 | #include "MagickCore/exception-private.h" |
| 48 | #include "MagickCore/geometry.h" |
| 49 | #include "MagickCore/image.h" |
| 50 | #include "MagickCore/image-private.h" |
| 51 | #include "MagickCore/layer.h" |
| 52 | #include "MagickCore/list.h" |
| 53 | #include "MagickCore/log.h" |
| 54 | #include "MagickCore/magick.h" |
| 55 | #include "MagickCore/memory_.h" |
| 56 | #include "MagickCore/resource_.h" |
| 57 | #include "MagickCore/quantum-private.h" |
| 58 | #include "MagickCore/static.h" |
| 59 | #include "MagickCore/string_.h" |
| 60 | #include "MagickCore/module.h" |
| 61 | #include "MagickCore/transform.h" |
| 62 | #include "MagickCore/utility.h" |
cristy | 18c6c27 | 2011-09-23 14:40:37 +0000 | [diff] [blame] | 63 | #include "MagickCore/utility-private.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 64 | |
| 65 | /* |
| 66 | Forward declarations. |
| 67 | */ |
| 68 | static MagickBooleanType |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 69 | WriteMPEGImage(const ImageInfo *,Image *,ExceptionInfo *); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 70 | |
| 71 | /* |
| 72 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 73 | % % |
| 74 | % % |
| 75 | % % |
cristy | aded326 | 2009-10-24 22:47:02 +0000 | [diff] [blame] | 76 | % I s A V I % |
| 77 | % % |
| 78 | % % |
| 79 | % % |
| 80 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 81 | % |
| 82 | % IsAVI() returns MagickTrue if the image format type, identified by the |
| 83 | % magick string, is Audio/Video Interleaved file format. |
| 84 | % |
| 85 | % The format of the IsAVI method is: |
| 86 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 87 | % size_t IsAVI(const unsigned char *magick,const size_t length) |
cristy | aded326 | 2009-10-24 22:47:02 +0000 | [diff] [blame] | 88 | % |
| 89 | % A description of each parameter follows: |
| 90 | % |
| 91 | % o magick: compare image format pattern against these bytes. |
| 92 | % |
| 93 | % o length: Specifies the length of the magick string. |
| 94 | % |
| 95 | */ |
| 96 | static MagickBooleanType IsAVI(const unsigned char *magick,const size_t length) |
| 97 | { |
| 98 | if (length < 4) |
| 99 | return(MagickFalse); |
| 100 | if (memcmp(magick,"RIFF",4) == 0) |
| 101 | return(MagickTrue); |
| 102 | return(MagickFalse); |
| 103 | } |
| 104 | |
| 105 | /* |
| 106 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 107 | % % |
| 108 | % % |
| 109 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 110 | % I s M P E G % |
| 111 | % % |
| 112 | % % |
| 113 | % % |
| 114 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 115 | % |
| 116 | % IsMPEG() returns MagickTrue if the image format type, identified by the |
| 117 | % magick string, is MPEG. |
| 118 | % |
| 119 | % The format of the IsMPEG method is: |
| 120 | % |
| 121 | % MagickBooleanType IsMPEG(const unsigned char *magick,const size_t length) |
| 122 | % |
| 123 | % A description of each parameter follows: |
| 124 | % |
| 125 | % o magick: compare image format pattern against these bytes. |
| 126 | % |
| 127 | % o length: Specifies the length of the magick string. |
| 128 | % |
| 129 | */ |
| 130 | static MagickBooleanType IsMPEG(const unsigned char *magick,const size_t length) |
| 131 | { |
| 132 | if (length < 4) |
| 133 | return(MagickFalse); |
| 134 | if (memcmp(magick,"\000\000\001\263",4) == 0) |
| 135 | return(MagickTrue); |
| 136 | return(MagickFalse); |
| 137 | } |
| 138 | |
| 139 | /* |
| 140 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 141 | % % |
| 142 | % % |
| 143 | % % |
| 144 | % R e a d M P E G I m a g e % |
| 145 | % % |
| 146 | % % |
| 147 | % % |
| 148 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 149 | % |
| 150 | % ReadMPEGImage() reads an binary file in the MPEG video stream format |
| 151 | % and returns it. It allocates the memory necessary for the new Image |
| 152 | % structure and returns a pointer to the new image. |
| 153 | % |
| 154 | % The format of the ReadMPEGImage method is: |
| 155 | % |
| 156 | % Image *ReadMPEGImage(const ImageInfo *image_info, |
| 157 | % ExceptionInfo *exception) |
| 158 | % |
| 159 | % A description of each parameter follows: |
| 160 | % |
| 161 | % o image_info: the image info. |
| 162 | % |
| 163 | % o exception: return any errors or warnings in this structure. |
| 164 | % |
| 165 | */ |
| 166 | static Image *ReadMPEGImage(const ImageInfo *image_info, |
| 167 | ExceptionInfo *exception) |
| 168 | { |
| 169 | #define ReadMPEGIntermediateFormat "pam" |
| 170 | |
| 171 | Image |
| 172 | *image, |
| 173 | *images; |
| 174 | |
| 175 | ImageInfo |
| 176 | *read_info; |
| 177 | |
| 178 | MagickBooleanType |
| 179 | status; |
| 180 | |
| 181 | /* |
| 182 | Open image file. |
| 183 | */ |
| 184 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 185 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 186 | if (image_info->debug != MagickFalse) |
| 187 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 188 | image_info->filename); |
| 189 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 190 | assert(exception->signature == MagickCoreSignature); |
cristy | 9950d57 | 2011-10-01 18:22:35 +0000 | [diff] [blame] | 191 | image=AcquireImage(image_info,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 192 | status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception); |
| 193 | if (status == MagickFalse) |
| 194 | { |
| 195 | image=DestroyImageList(image); |
| 196 | return((Image *) NULL); |
| 197 | } |
| 198 | (void) CloseBlob(image); |
| 199 | (void) DestroyImageList(image); |
| 200 | /* |
| 201 | Convert MPEG to PAM with delegate. |
| 202 | */ |
| 203 | read_info=CloneImageInfo(image_info); |
cristy | 9950d57 | 2011-10-01 18:22:35 +0000 | [diff] [blame] | 204 | image=AcquireImage(image_info,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 205 | (void) InvokeDelegate(read_info,image,"mpeg:decode",(char *) NULL,exception); |
| 206 | image=DestroyImage(image); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 207 | (void) FormatLocaleString(read_info->filename,MagickPathExtent,"%s.%s", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 208 | read_info->unique,ReadMPEGIntermediateFormat); |
| 209 | images=ReadImage(read_info,exception); |
| 210 | (void) RelinquishUniqueFileResource(read_info->filename); |
| 211 | read_info=DestroyImageInfo(read_info); |
| 212 | return(images); |
| 213 | } |
| 214 | |
| 215 | /* |
| 216 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 217 | % % |
| 218 | % % |
| 219 | % % |
| 220 | % R e g i s t e r M P E G I m a g e % |
| 221 | % % |
| 222 | % % |
| 223 | % % |
| 224 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 225 | % |
| 226 | % RegisterMPEGImage() adds attributes for the MPEG image format to |
| 227 | % the list of supported formats. The attributes include the image format |
| 228 | % tag, a method to read and/or write the format, whether the format |
| 229 | % supports the saving of more than one frame to the same file or blob, |
| 230 | % whether the format supports native in-memory I/O, and a brief |
| 231 | % description of the format. |
| 232 | % |
| 233 | % The format of the RegisterMPEGImage method is: |
| 234 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 235 | % size_t RegisterMPEGImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 236 | % |
| 237 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 238 | ModuleExport size_t RegisterMPEGImage(void) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 239 | { |
| 240 | MagickInfo |
| 241 | *entry; |
| 242 | |
Cristy | b066eae | 2017-01-20 09:15:54 -0500 | [diff] [blame] | 243 | entry=AcquireMagickInfo("MPEG","3GP","Media Container"); |
| 244 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 245 | entry->flags^=CoderBlobSupportFlag; |
| 246 | entry->flags|=CoderSeekableStreamFlag; |
| 247 | (void) RegisterMagickInfo(entry); |
| 248 | entry=AcquireMagickInfo("MPEG","3G2","Media Container"); |
| 249 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 250 | entry->flags^=CoderBlobSupportFlag; |
| 251 | entry->flags|=CoderSeekableStreamFlag; |
| 252 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 253 | entry=AcquireMagickInfo("MPEG","AVI","Microsoft Audio/Visual Interleaved"); |
cristy | aded326 | 2009-10-24 22:47:02 +0000 | [diff] [blame] | 254 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 255 | entry->magick=(IsImageFormatHandler *) IsAVI; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 256 | entry->flags^=CoderBlobSupportFlag; |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 257 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 258 | entry=AcquireMagickInfo("MPEG","MKV","Multimedia Container"); |
cristy | a3d8142 | 2015-04-03 13:00:33 +0000 | [diff] [blame] | 259 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 260 | entry->encoder=(EncodeImageHandler *) WriteMPEGImage; |
| 261 | entry->magick=(IsImageFormatHandler *) IsMPEG; |
| 262 | entry->flags^=CoderBlobSupportFlag; |
cristy | a3d8142 | 2015-04-03 13:00:33 +0000 | [diff] [blame] | 263 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 264 | entry=AcquireMagickInfo("MPEG","MOV","MPEG Video Stream"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 265 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 266 | entry->encoder=(EncodeImageHandler *) WriteMPEGImage; |
| 267 | entry->magick=(IsImageFormatHandler *) IsMPEG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 268 | entry->flags^=CoderBlobSupportFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 269 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 270 | entry=AcquireMagickInfo("MPEG","MPEG","MPEG Video Stream"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 271 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 272 | entry->encoder=(EncodeImageHandler *) WriteMPEGImage; |
| 273 | entry->magick=(IsImageFormatHandler *) IsMPEG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 274 | entry->flags^=CoderBlobSupportFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 275 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 276 | entry=AcquireMagickInfo("MPEG","MPG","MPEG Video Stream"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 277 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 278 | entry->encoder=(EncodeImageHandler *) WriteMPEGImage; |
| 279 | entry->magick=(IsImageFormatHandler *) IsMPEG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 280 | entry->flags^=CoderBlobSupportFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 281 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 282 | entry=AcquireMagickInfo("MPEG","MP4","MPEG-4 Video Stream"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 283 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 284 | entry->encoder=(EncodeImageHandler *) WriteMPEGImage; |
| 285 | entry->magick=(IsImageFormatHandler *) IsMPEG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 286 | entry->flags^=CoderBlobSupportFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 287 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 288 | entry=AcquireMagickInfo("MPEG","M2V","MPEG Video Stream"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 289 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 290 | entry->encoder=(EncodeImageHandler *) WriteMPEGImage; |
| 291 | entry->magick=(IsImageFormatHandler *) IsMPEG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 292 | entry->flags^=CoderBlobSupportFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 293 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 294 | entry=AcquireMagickInfo("MPEG","M4V","Raw MPEG-4 Video"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 295 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 296 | entry->encoder=(EncodeImageHandler *) WriteMPEGImage; |
| 297 | entry->magick=(IsImageFormatHandler *) IsMPEG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 298 | entry->flags^=CoderBlobSupportFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 299 | (void) RegisterMagickInfo(entry); |
dirk | 06b627a | 2015-04-06 18:59:17 +0000 | [diff] [blame] | 300 | entry=AcquireMagickInfo("MPEG","WMV","Windows Media Video"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 301 | entry->decoder=(DecodeImageHandler *) ReadMPEGImage; |
| 302 | entry->encoder=(EncodeImageHandler *) WriteMPEGImage; |
| 303 | entry->magick=(IsImageFormatHandler *) IsMPEG; |
dirk | 08e9a11 | 2015-02-22 01:51:41 +0000 | [diff] [blame] | 304 | entry->flags^=CoderBlobSupportFlag; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 305 | (void) RegisterMagickInfo(entry); |
| 306 | return(MagickImageCoderSignature); |
| 307 | } |
| 308 | |
| 309 | /* |
| 310 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 311 | % % |
| 312 | % % |
| 313 | % % |
| 314 | % U n r e g i s t e r M P E G I m a g e % |
| 315 | % % |
| 316 | % % |
| 317 | % % |
| 318 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 319 | % |
| 320 | % UnregisterMPEGImage() removes format registrations made by the |
| 321 | % BIM module from the list of supported formats. |
| 322 | % |
| 323 | % The format of the UnregisterBIMImage method is: |
| 324 | % |
| 325 | % UnregisterMPEGImage(void) |
| 326 | % |
| 327 | */ |
| 328 | ModuleExport void UnregisterMPEGImage(void) |
| 329 | { |
| 330 | (void) UnregisterMagickInfo("WMV"); |
cristy | a3d8142 | 2015-04-03 13:00:33 +0000 | [diff] [blame] | 331 | (void) UnregisterMagickInfo("MOV"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 332 | (void) UnregisterMagickInfo("M4V"); |
| 333 | (void) UnregisterMagickInfo("M2V"); |
| 334 | (void) UnregisterMagickInfo("MP4"); |
| 335 | (void) UnregisterMagickInfo("MPG"); |
| 336 | (void) UnregisterMagickInfo("MPEG"); |
cristy | a3d8142 | 2015-04-03 13:00:33 +0000 | [diff] [blame] | 337 | (void) UnregisterMagickInfo("MKV"); |
cristy | f34a145 | 2009-10-24 22:29:27 +0000 | [diff] [blame] | 338 | (void) UnregisterMagickInfo("AVI"); |
Cristy | b066eae | 2017-01-20 09:15:54 -0500 | [diff] [blame] | 339 | (void) UnregisterMagickInfo("3G2"); |
| 340 | (void) UnregisterMagickInfo("3GP"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 341 | } |
| 342 | |
| 343 | /* |
| 344 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 345 | % % |
| 346 | % % |
| 347 | % % |
| 348 | % W r i t e M P E G I m a g e % |
| 349 | % % |
| 350 | % % |
| 351 | % % |
| 352 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 353 | % |
| 354 | % WriteMPEGImage() writes an image to a file in MPEG video stream format. |
| 355 | % Lawrence Livermore National Laboratory (LLNL) contributed code to adjust |
| 356 | % the MPEG parameters to correspond to the compression quality setting. |
| 357 | % |
| 358 | % The format of the WriteMPEGImage method is: |
| 359 | % |
| 360 | % MagickBooleanType WriteMPEGImage(const ImageInfo *image_info, |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 361 | % Image *image,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 362 | % |
| 363 | % A description of each parameter follows. |
| 364 | % |
| 365 | % o image_info: the image info. |
| 366 | % |
| 367 | % o image: The image. |
| 368 | % |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 369 | % o exception: return any errors or warnings in this structure. |
| 370 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 371 | */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 372 | static MagickBooleanType CopyDelegateFile(const char *source, |
| 373 | const char *destination) |
| 374 | { |
| 375 | int |
| 376 | destination_file, |
| 377 | source_file; |
| 378 | |
| 379 | MagickBooleanType |
| 380 | status; |
| 381 | |
| 382 | register size_t |
| 383 | i; |
| 384 | |
| 385 | size_t |
| 386 | length, |
| 387 | quantum; |
| 388 | |
| 389 | ssize_t |
| 390 | count; |
| 391 | |
| 392 | struct stat |
| 393 | attributes; |
| 394 | |
| 395 | unsigned char |
| 396 | *buffer; |
| 397 | |
| 398 | /* |
| 399 | Return if destination file already exists and is not empty. |
| 400 | */ |
| 401 | assert(source != (const char *) NULL); |
| 402 | assert(destination != (char *) NULL); |
| 403 | status=GetPathAttributes(destination,&attributes); |
cristy | f201ba6 | 2015-07-05 13:54:28 +0000 | [diff] [blame] | 404 | if ((status != MagickFalse) && (attributes.st_size > 0)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 405 | return(MagickTrue); |
| 406 | /* |
| 407 | Copy source file to destination. |
| 408 | */ |
cristy | 18c6c27 | 2011-09-23 14:40:37 +0000 | [diff] [blame] | 409 | destination_file=open_utf8(destination,O_WRONLY | O_BINARY | O_CREAT,S_MODE); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 410 | if (destination_file == -1) |
| 411 | return(MagickFalse); |
cristy | 18c6c27 | 2011-09-23 14:40:37 +0000 | [diff] [blame] | 412 | source_file=open_utf8(source,O_RDONLY | O_BINARY,0); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 413 | if (source_file == -1) |
| 414 | { |
| 415 | (void) close(destination_file); |
| 416 | return(MagickFalse); |
| 417 | } |
| 418 | quantum=(size_t) MagickMaxBufferExtent; |
cristy | f201ba6 | 2015-07-05 13:54:28 +0000 | [diff] [blame] | 419 | if ((fstat(source_file,&attributes) == 0) && (attributes.st_size > 0)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 420 | quantum=(size_t) MagickMin((double) attributes.st_size, |
| 421 | MagickMaxBufferExtent); |
| 422 | buffer=(unsigned char *) AcquireQuantumMemory(quantum,sizeof(*buffer)); |
| 423 | if (buffer == (unsigned char *) NULL) |
| 424 | { |
| 425 | (void) close(source_file); |
| 426 | (void) close(destination_file); |
| 427 | return(MagickFalse); |
| 428 | } |
| 429 | length=0; |
| 430 | for (i=0; ; i+=count) |
| 431 | { |
| 432 | count=(ssize_t) read(source_file,buffer,quantum); |
| 433 | if (count <= 0) |
| 434 | break; |
| 435 | length=(size_t) count; |
| 436 | count=(ssize_t) write(destination_file,buffer,length); |
| 437 | if ((size_t) count != length) |
| 438 | break; |
| 439 | } |
| 440 | (void) close(destination_file); |
| 441 | (void) close(source_file); |
| 442 | buffer=(unsigned char *) RelinquishMagickMemory(buffer); |
| 443 | return(i != 0 ? MagickTrue : MagickFalse); |
| 444 | } |
| 445 | |
| 446 | static MagickBooleanType WriteMPEGImage(const ImageInfo *image_info, |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 447 | Image *image,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 448 | { |
| 449 | #define WriteMPEGIntermediateFormat "jpg" |
| 450 | |
| 451 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 452 | basename[MagickPathExtent], |
| 453 | filename[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 454 | |
| 455 | double |
| 456 | delay; |
| 457 | |
| 458 | Image |
| 459 | *coalesce_image; |
| 460 | |
| 461 | ImageInfo |
| 462 | *write_info; |
| 463 | |
| 464 | int |
| 465 | file; |
| 466 | |
| 467 | MagickBooleanType |
| 468 | status; |
| 469 | |
| 470 | register Image |
| 471 | *p; |
| 472 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 473 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 474 | i; |
| 475 | |
| 476 | size_t |
cristy | aff6d80 | 2011-04-26 01:46:31 +0000 | [diff] [blame] | 477 | count, |
| 478 | length, |
| 479 | scene; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 480 | |
| 481 | unsigned char |
| 482 | *blob; |
| 483 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 484 | /* |
| 485 | Open output image file. |
| 486 | */ |
| 487 | assert(image_info != (const ImageInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 488 | assert(image_info->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 489 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 490 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 491 | if (image->debug != MagickFalse) |
| 492 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
cristy | 3a37efd | 2011-08-28 20:31:03 +0000 | [diff] [blame] | 493 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 494 | assert(exception->signature == MagickCoreSignature); |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 495 | status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 496 | if (status == MagickFalse) |
| 497 | return(status); |
| 498 | (void) CloseBlob(image); |
| 499 | /* |
cristy | e9ae811 | 2009-09-21 16:17:49 +0000 | [diff] [blame] | 500 | Write intermediate files. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 501 | */ |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 502 | coalesce_image=CoalesceImages(image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 503 | if (coalesce_image == (Image *) NULL) |
| 504 | return(MagickFalse); |
| 505 | file=AcquireUniqueFileResource(basename); |
| 506 | if (file != -1) |
| 507 | file=close(file)-1; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 508 | (void) FormatLocaleString(coalesce_image->filename,MagickPathExtent,"%s", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 509 | basename); |
| 510 | count=0; |
| 511 | write_info=CloneImageInfo(image_info); |
cristy | 386d8ba | 2015-02-25 02:45:59 +0000 | [diff] [blame] | 512 | *write_info->magick='\0'; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 513 | for (p=coalesce_image; p != (Image *) NULL; p=GetNextImageInList(p)) |
| 514 | { |
| 515 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 516 | previous_image[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 517 | |
| 518 | blob=(unsigned char *) NULL; |
| 519 | length=0; |
| 520 | scene=p->scene; |
| 521 | delay=100.0*p->delay/MagickMax(1.0*p->ticks_per_second,1.0); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 522 | for (i=0; i < (ssize_t) MagickMax((1.0*delay+1.0)/3.0,1.0); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 523 | { |
| 524 | p->scene=count; |
| 525 | count++; |
| 526 | status=MagickFalse; |
| 527 | switch (i) |
| 528 | { |
| 529 | case 0: |
| 530 | { |
| 531 | Image |
| 532 | *frame; |
| 533 | |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 534 | (void) FormatLocaleString(p->filename,MagickPathExtent,"%s%.20g.%s", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 535 | basename,(double) p->scene,WriteMPEGIntermediateFormat); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 536 | (void) FormatLocaleString(filename,MagickPathExtent,"%s%.20g.%s", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 537 | basename,(double) p->scene,WriteMPEGIntermediateFormat); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 538 | (void) FormatLocaleString(previous_image,MagickPathExtent, |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 539 | "%s%.20g.%s",basename,(double) p->scene, |
cristy | f2faecf | 2010-05-28 19:19:36 +0000 | [diff] [blame] | 540 | WriteMPEGIntermediateFormat); |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 541 | frame=CloneImage(p,0,0,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 542 | if (frame == (Image *) NULL) |
| 543 | break; |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 544 | status=WriteImage(write_info,frame,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 545 | frame=DestroyImage(frame); |
| 546 | break; |
| 547 | } |
| 548 | case 1: |
| 549 | { |
| 550 | blob=(unsigned char *) FileToBlob(previous_image,~0UL,&length, |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 551 | exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 552 | } |
| 553 | default: |
| 554 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 555 | (void) FormatLocaleString(filename,MagickPathExtent,"%s%.20g.%s", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 556 | basename,(double) p->scene,WriteMPEGIntermediateFormat); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 557 | if (length > 0) |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 558 | status=BlobToFile(filename,blob,length,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 559 | break; |
| 560 | } |
| 561 | } |
| 562 | if (image->debug != MagickFalse) |
| 563 | { |
| 564 | if (status != MagickFalse) |
| 565 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 566 | "%.20g. Wrote %s file for scene %.20g:",(double) i, |
| 567 | WriteMPEGIntermediateFormat,(double) p->scene); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 568 | else |
| 569 | (void) LogMagickEvent(CoderEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 570 | "%.20g. Failed to write %s file for scene %.20g:",(double) i, |
| 571 | WriteMPEGIntermediateFormat,(double) p->scene); |
| 572 | (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%s",filename); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 573 | } |
| 574 | } |
| 575 | p->scene=scene; |
| 576 | if (blob != (unsigned char *) NULL) |
| 577 | blob=(unsigned char *) RelinquishMagickMemory(blob); |
| 578 | if (status == MagickFalse) |
| 579 | break; |
| 580 | } |
| 581 | /* |
| 582 | Convert JPEG to MPEG. |
| 583 | */ |
| 584 | (void) CopyMagickString(coalesce_image->magick_filename,basename, |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 585 | MagickPathExtent); |
| 586 | (void) CopyMagickString(coalesce_image->filename,basename,MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 587 | GetPathComponent(image_info->filename,ExtensionPath,coalesce_image->magick); |
| 588 | if (*coalesce_image->magick == '\0') |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 589 | (void) CopyMagickString(coalesce_image->magick,image->magick,MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 590 | status=InvokeDelegate(write_info,coalesce_image,(char *) NULL,"mpeg:encode", |
cristy | 1e178e7 | 2011-08-28 19:44:34 +0000 | [diff] [blame] | 591 | exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 592 | (void) FormatLocaleString(write_info->filename,MagickPathExtent,"%s.%s", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 593 | write_info->unique,coalesce_image->magick); |
| 594 | status=CopyDelegateFile(write_info->filename,image->filename); |
| 595 | (void) RelinquishUniqueFileResource(write_info->filename); |
| 596 | write_info=DestroyImageInfo(write_info); |
| 597 | /* |
| 598 | Relinquish resources. |
| 599 | */ |
| 600 | count=0; |
| 601 | for (p=coalesce_image; p != (Image *) NULL; p=GetNextImageInList(p)) |
| 602 | { |
| 603 | delay=100.0*p->delay/MagickMax(1.0*p->ticks_per_second,1.0); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 604 | for (i=0; i < (ssize_t) MagickMax((1.0*delay+1.0)/3.0,1.0); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 605 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 606 | (void) FormatLocaleString(p->filename,MagickPathExtent,"%s%.20g.%s", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 607 | basename,(double) count++,WriteMPEGIntermediateFormat); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 608 | (void) RelinquishUniqueFileResource(p->filename); |
| 609 | } |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 610 | (void) CopyMagickString(p->filename,image_info->filename,MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 611 | } |
| 612 | (void) RelinquishUniqueFileResource(basename); |
| 613 | coalesce_image=DestroyImageList(coalesce_image); |
| 614 | if (image->debug != MagickFalse) |
| 615 | (void) LogMagickEvent(CoderEvent,GetMagickModule(),"exit"); |
| 616 | return(status); |
| 617 | } |