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| 1 | /** |
1 | /** |
| 2 | * IPMA video frame extractor by Daniel Marschall, ViaThinkSoft (C) 2022 |
2 | * IPMA video frame extractor by Daniel Marschall, ViaThinkSoft (C) 2022 |
| 3 | * Supports codecs IPMA and IP20 |
3 | * Supports codecs IPMA and IP20 |
| 4 | * Revision: 2022-01-15 |
4 | * Revision: 2022-01-16 |
| 5 | * License: Apache 2.0 |
5 | * License: Apache 2.0 |
| 6 | **/ |
6 | **/ |
| 7 | 7 | ||
| 8 | #define VERSION "2022-01-15" |
8 | #define VERSION "2022-01-16" |
| 9 | 9 | ||
| 10 | #define _CRT_SECURE_NO_WARNINGS |
10 | #define _CRT_SECURE_NO_WARNINGS |
| 11 | // #define VISUAL_STUDIO_TEST |
11 | // #define VISUAL_STUDIO_TEST |
| 12 | 12 | ||
| 13 | #include <windows.h> |
13 | #include <windows.h> |
| Line 376... | Line 376... | ||
| 376 | AVIStreamRelease(pStream1); |
376 | AVIStreamRelease(pStream1); |
| 377 | AVIFileRelease(pFile); |
377 | AVIFileRelease(pFile); |
| 378 | return false; |
378 | return false; |
| 379 | } |
379 | } |
| 380 | 380 | ||
| - | 381 | // Note that for 2 files, bi.biSizeImage is wrong (much too small!) |
|
| - | 382 | // LB05M08.AVI: biSizeImage (10598) != rectWidth * rectHeight (27492) |
|
| - | 383 | // TY06M12.AVI: biSizeImage (1274) != rectWidth * rectHeight (8058) |
|
| 381 | int bufsiz_uncompressed = pstrf->bi.biSizeImage; |
384 | //int bufsiz_uncompressed = pstrf->bi.biSizeImage; |
| 382 | int bufsiz_compressed = pstrf->bi.biSizeImage * 1000; // for some reason, compressed can sometimes be larger than uncompressed, so we multiply by 1000 |
- | |
| 383 | if (bufsiz_uncompressed != (asi1.rcFrame.right - asi1.rcFrame.left) * (asi1.rcFrame.bottom - asi1.rcFrame.top)) { |
385 | int bufsiz_uncompressed = (asi1.rcFrame.right - asi1.rcFrame.left) * (asi1.rcFrame.bottom - asi1.rcFrame.top); |
| - | 386 | ||
| - | 387 | // theoretically, compressed can sometimes be larger than uncompressed, so we multiply by 10 |
|
| 384 | printf("WARNING: biSizeImage != rectWidth * rectHeight\n"); |
388 | int bufsiz_compressed = bufsiz_uncompressed * 10; |
| 385 | } |
389 | |
| 386 | unsigned char* buffer_uncompressed = (unsigned char*)malloc(bufsiz_uncompressed); |
390 | unsigned char* buffer_uncompressed = (unsigned char*)malloc(bufsiz_uncompressed); |
| 387 | if (buffer_uncompressed == NULL) return false; |
391 | if (buffer_uncompressed == NULL) return false; |
| 388 | unsigned char* buffer_compressed = (unsigned char*)malloc(bufsiz_compressed); |
392 | unsigned char* buffer_compressed = (unsigned char*)malloc(bufsiz_compressed); |
| 389 | if (buffer_compressed == NULL) return false; |
393 | if (buffer_compressed == NULL) return false; |
| 390 | 394 | ||