| Size prediction tests with DivX |
- All the tests are done with full movies.
- For each movie tested you can find number of frames, fps and DivX 5 options used (snip size in this tests is always 14).
- For each test a size prediction was made, using 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 100% of the movie (note: at 100% the predicted video size is perfect, i only don't take in account the Avi overhead).
- For each run you can find the predicted size value and the error from predicted size at 100%.
- For each test you can find the final average error.
- For some of the tests a real 1-pass quality based encode was made (to show the difference from the predicted size at 100%: the Avi overhead).
01
| Source: 160561 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 2.0 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 50 | | Maximum quantizer: | 12 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | No | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 1,223,018,966 | 2,064,667 | 0.17% | | 2% | 1,232,559,954 | 7,476,321 | 0.61% | | 3% | 1,235,192,941 | 10,109,308 | 0.83% | | 4% | 1,235,345,723 | 10,262,090 | 0.84% | | 5% | 1,218,909,507 | 6,174,126 | 0.50% | | 6% | 1,240,399,287 | 15,315,654 | 1.25% | | 7% | 1,221,517,462 | 3,566,171 | 0.29% | | 8% | 1,216,274,236 | 8,809,397 | 0.72% | | 9% | 1,218,951,783 | 6,131,850 | 0.50% | | 10% | 1,229,567,785 | 4,484,152 | 0.37% | | Average error: | 0.61% | | 100% | 1,225,083,633 | 0 | 0.00% | | Predicted video size at 100%: | 1,225,083,633 | | | Final AVI size: | 1,229,025,280 | | | Difference: | 3,941,647 | (this is the AVI overhead) |
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02
| Source: 137828 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 3 | | Max Keyframe interval: | 300 | | Scene change threshold %: | 50 | | Maximum quantizer: | 12 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | Yes | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 783,069,898 | 48,017,813 | 6.53% | | 2% | 761,464,426 | 26,412,341 | 3.59% | | 3% | 753,548,863 | 18,496,778 | 2.52% | | 4% | 751,999,508 | 16,947,423 | 2.31% | | 5% | 734,590,367 | 461,718 | 0.06% | | 6% | 741,718,723 | 6,666,638 | 0.91% | | 7% | 733,290,969 | 1,761,116 | 0.24% | | 8% | 742,112,040 | 7,059,955 | 0.96% | | 9% | 743,267,494 | 8,215,409 | 1.12% | | 10% | 733,075,730 | 1,976,355 | 0.27% | | Average error: | 1.85% | | 100% | 735,052,085 | 0 | 0.00% |
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03
| Source: 163647 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 4.0 | | Max Keyframe interval: | 75 | | Scene change threshold %: | 50 | | Maximum quantizer: | 2 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | No | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 638,154,414 | 31,780,777 | 4.74% | | 2% | 682,498,380 | 12,563,189 | 1.88% | | 3% | 666,717,249 | 3,217,942 | 0.48% | | 4% | 669,256,086 | 679,105 | 0.10% | | 5% | 651,227,058 | 18,708,133 | 2.79% | | 6% | 670,708,742 | 773,551 | 0.12% | | 7% | 656,110,110 | 13,825,081 | 2.06% | | 8% | 665,353,020 | 4,582,171 | 0.68% | | 9% | 665,824,512 | 4,110,679 | 0.61% | | 10% | 663,518,625 | 6,416,566 | 0.96% | | Average error: | 1.44% | | 100% | 669,935,191 | 0 | 0.00% |
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04
| Source: 146022 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 4.0 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 50 | | Maximum quantizer: | 2 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | No | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 664,442,631 | 62,575,691 | 8.61% | | 2% | 710,222,944 | 16,795,378 | 2.31% | | 3% | 702,277,230 | 24,741,092 | 3.40% | | 4% | 736,151,281 | 9,132,959 | 1.26% | | 5% | 726,749,419 | 268,903 | 0.04% | | 6% | 714,988,086 | 12,030,236 | 1.65% | | 7% | 731,912,469 | 4,894,147 | 0.67% | | 8% | 725,790,153 | 1,228,169 | 0.17% | | 9% | 722,917,858 | 4,100,464 | 0.56% | | 10% | 722,750,943 | 4,267,379 | 0.59% | | Average error: | 1.93% | | 100% | 727,018,322 | 0 | 0.00% |
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05
| Source: 146022 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 4.0 | | Max Keyframe interval: | 75 | | Scene change threshold %: | 50 | | Maximum quantizer: | 2 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | No | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 664,442,631 | 79,250,968 | 10.66% | | 2% | 710,811,748 | 32,881,851 | 4.42% | | 3% | 704,217,795 | 39,475,804 | 5.31% | | 4% | 737,795,572 | 5,898,027 | 0.79% | | 5% | 730,380,737 | 13,312,862 | 1.79% | | 6% | 719,873,943 | 23,819,656 | 3.20% | | 7% | 737,553,309 | 6,140,290 | 0.83% | | 8% | 731,434,967 | 12,258,632 | 1.65% | | 9% | 729,554,987 | 14,138,612 | 1.90% | | 10% | 731,221,678 | 12,471,921 | 1.68% | | Average error: | 3.22% | | 100% | 743,693,599 | 0 | 0.00% | | Predicted video size at 100%: | 743,693,599 | | | Final AVI size: | 747,278,336 | | | Difference: | 3,584,737 | (this is the AVI overhead) |
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06
| Source: 196716 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 3 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 50 | | Maximum quantizer: | 12 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | Yes | | Psychovisual Enhancements: | Normal | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 584,178,855 | 44,182,827 | 7.03% | | 2% | 602,311,431 | 26,050,251 | 4.15% | | 3% | 619,845,256 | 8,516,426 | 1.36% | | 4% | 604,515,139 | 23,846,543 | 3.80% | | 5% | 612,636,397 | 15,725,285 | 2.50% | | 6% | 628,000,077 | 361,605 | 0.06% | | 7% | 612,514,849 | 15,846,833 | 2.52% | | 8% | 614,298,925 | 14,062,757 | 2.24% | | 9% | 618,892,351 | 9,469,331 | 1.51% | | 10% | 616,053,988 | 12,307,694 | 1.96% | | Average error: | 2.71% | | 100% | 628,361,682 | 0 | 0.00% |
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07
| Source: 196716 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 3 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 35 | | Maximum quantizer: | 12 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | Yes | | Psychovisual Enhancements: | Normal | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 579,646,016 | 47,849,395 | 7.63% | | 2% | 597,636,054 | 29,859,357 | 4.76% | | 3% | 615,218,400 | 12,277,011 | 1.96% | | 4% | 599,845,929 | 27,649,482 | 4.41% | | 5% | 608,342,154 | 19,153,257 | 3.05% | | 6% | 624,590,139 | 2,905,272 | 0.46% | | 7% | 609,102,972 | 18,392,439 | 2.93% | | 8% | 610,714,308 | 16,781,103 | 2.67% | | 9% | 616,345,420 | 11,149,991 | 1.78% | | 10% | 612,140,223 | 15,355,188 | 2.45% | | Average error: | 3.21% | | 100% | 627,495,411 | 0 | 0.00% | | Predicted video size at 100%: | 627,495,411 | | | Final AVI size: | 632,272,896 | | | Difference: | 4,777,485 | (this is the AVI overhead) |
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08
| Source: 256596 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 4 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 50 | | Maximum quantizer: | 12 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | Yes | | Use Bidirectional Encoding: | Yes | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 668,393,067 | 21,115,490 | 3.06% | | 2% | 700,151,259 | 10,642,702 | 1.54% | | 3% | 689,011,835 | 496,722 | 0.07% | | 4% | 710,198,181 | 20,689,624 | 3.00% | | 5% | 686,555,267 | 2,953,290 | 0.43% | | 6% | 691,309,304 | 1,800,747 | 0.26% | | 7% | 688,679,297 | 829,260 | 0.12% | | 8% | 697,975,227 | 8,466,670 | 1.23% | | 9% | 683,053,361 | 6,455,196 | 0.94% | | 10% | 683,111,770 | 6,396,787 | 0.93% | | Average error: | 1.16% | | 100% | 689,508,557 | 0 | 0.00% | | Predicted video size at 100%: | 689,508,557 | | | Final AVI size: | 695,740,416 | | | Difference: | 6,231,859 | (this is the AVI overhead) |
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09
| Source: 196093 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 5 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 50 | | Maximum quantizer: | 2 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | Yes | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 517,545,519 | 4,306,758 | 0.83% | | 2% | 508,062,133 | 13,790,144 | 2.64% | | 3% | 512,831,946 | 9,020,331 | 1.73% | | 4% | 521,580,523 | 271,754 | 0.05% | | 5% | 510,552,066 | 11,300,211 | 2.17% | | 6% | 522,989,928 | 1,137,651 | 0.22% | | 7% | 525,379,888 | 3,527,611 | 0.68% | | 8% | 523,421,138 | 1,568,861 | 0.30% | | 9% | 518,627,700 | 3,224,577 | 0.62% | | 10% | 516,549,365 | 5,302,912 | 1.02% | | Average error: | 1.02% | | 100% | 521,852,277 | 0 | 0.00% | | Predicted video size at 100%: | 521,852,277 | | | Final AVI size: | 526,616,576 | | | Difference: | 4,764,299 | (this is the AVI overhead) |
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10
| Source: 188084 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 3.5 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 50 | | Maximum quantizer: | 12 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | Yes | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 645,433,698 | 35,462,353 | 5.81% | | 2% | 605,111,734 | 4,859,611 | 0.80% | | 3% | 609,417,299 | 554,046 | 0.09% | | 4% | 618,839,040 | 8,867,695 | 1.45% | | 5% | 611,429,993 | 1,458,648 | 0.24% | | 6% | 607,186,440 | 2,784,905 | 0.46% | | 7% | 618,306,178 | 8,334,833 | 1.37% | | 8% | 607,422,424 | 2,548,921 | 0.42% | | 9% | 617,086,665 | 7,115,320 | 1.17% | | 10% | 605,619,587 | 4,351,758 | 0.71% | | Average error: | 1.25% | | 100% | 609,971,345 | 0 | 0.00% |
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11
| Source: 185645 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 2 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 50 | | Maximum quantizer: | 12 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | No | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 1,904,734,100 | 38,646,568 | 2.07% | | 2% | 1,866,073,704 | 13,828 | 0.00% | | 3% | 1,850,615,171 | 15,472,361 | 0.83% | | 4% | 1,861,500,843 | 4,586,689 | 0.25% | | 5% | 1,854,651,412 | 11,436,120 | 0.61% | | 6% | 1,871,858,651 | 5,771,119 | 0.31% | | 7% | 1,854,548,021 | 11,539,511 | 0.62% | | 8% | 1,863,912,194 | 2,175,338 | 0.12% | | 9% | 1,872,485,396 | 6,397,864 | 0.34% | | 10% | 1,869,827,742 | 3,740,210 | 0.20% | | Average error: | 0.53% | | 100% | 1,866,087,532 | 0 | 0.00% | | Predicted video size at 100%: | 1,866,087,532 | | | Final AVI size: | 1,870,643,200 | | | Difference: | 4,555,668 | (this is the AVI overhead) |
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12
| Source: 195548 frames - 23.976 fps Snip size: 14 | | DivX options: | | Quantizer: | 3 | | Max Keyframe interval: | 240 | | Scene change threshold %: | 25 | | Maximum quantizer: | 12 | | Minimum quantizer: | 2 | | RC averaging period, frames: | 2000 | | RC reaction period, frames: | 10 | | Rate control down/up reaction: | 20 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | No | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 1,177,981,035 | 23,224,485 | 1.93% | | 2% | 1,255,431,080 | 54,225,560 | 4.51% | | 3% | 1,185,117,606 | 16,087,914 | 1.34% | | 4% | 1,211,669,221 | 10,463,701 | 0.87% | | 5% | 1,186,527,844 | 14,677,676 | 1.22% | | 6% | 1,176,979,744 | 24,225,776 | 2.02% | | 7% | 1,193,882,390 | 7,323,130 | 0.61% | | 8% | 1,167,661,185 | 33,544,335 | 2.79% | | 9% | 1,197,599,313 | 3,606,207 | 0.30% | | 10% | 1,206,530,448 | 5,324,928 | 0.44% | | Average error: | 1.60% | | 100% | 1,201,205,520 | 0 | 0.00% |
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13
| Source: 147197 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 2.0 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 50 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | Yes | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 469,438,658 | 47,508,942 | 9.19% | | 2% | 504,952,274 | 11,995,326 | 2.32% | | 3% | 533,881,500 | 16,933,900 | 3.28% | | 4% | 511,514,906 | 5,432,694 | 1.05% | | 5% | 515,702,637 | 1,244,963 | 0.24% | | 6% | 517,838,289 | 890,689 | 0.17% | | 7% | 524,024,486 | 7,076,886 | 1.37% | | 8% | 500,769,278 | 16,178,322 | 3.13% | | 9% | 514,850,030 | 2,097,570 | 0.41% | | 10% | 511,946,781 | 5,000,819 | 0.97% | | Average error: | 2.21% | | 100% | 516,947,600 | 0 | 0.00% | | Predicted video size at 100%: | 516,947,600 | | | Final AVI size: | 520,523,776 | | | Difference: | 3,576,176 | (this is the AVI overhead) |
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14
| Source: 147197 frames - 25.000 fps Snip size: 14 | | DivX options: | | Quantizer: | 3 | | Max Keyframe interval: | 250 | | Scene change threshold %: | 50 | | Use Quarter Pixel: | No | | Use GMC: | No | | Use Bidirectional Encoding: | No | | Psychovisual Enhancements: | None | | Pre Processing Source: | None | | Performance/quality: | Slowest | | Crop: | None | | Resize: | None |
| | Used % | Predicted video size | Error from predicted
size at 100% (in bytes) | Error from predicted
size at 100% (in %) | | 1% | 386,351,391 | 42,834,845 | 9.98% | | 2% | 416,138,941 | 13,047,295 | 3.04% | | 3% | 437,276,637 | 8,090,401 | 1.89% | | 4% | 426,045,400 | 3,140,836 | 0.73% | | 5% | 423,981,579 | 5,204,657 | 1.21% | | 6% | 427,558,762 | 1,627,474 | 0.38% | | 7% | 432,640,415 | 3,454,179 | 0.80% | | 8% | 416,884,426 | 12,301,810 | 2.87% | | 9% | 428,552,483 | 633,753 | 0.15% | | 10% | 422,560,016 | 6,626,220 | 1.54% | | Average error: | 2.26% | | 100% | 429,186,236 | 0 | 0.00% | | Predicted video size at 100%: | 429,186,236 | | | Final AVI size: | 432,799,744 | | | Difference: | 3,613,508 | (this is the AVI overhead) |
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