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19th May 2011, 15:29 | #21 | Link |
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Basically I wanted to have easy to edit files. Seeking in Sony Vegas should be slightly faster for example. Maybe I'm wrong but I think that decoder has to fill in whole buffer before decoding selected frame.
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20th May 2011, 05:56 | #23 | Link | |
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I tested Matrox codecs and the only ones that worked with my HD sources (1920x1080i) were the uncompressed codecs: not useful. Saludos By ALEX-KID |
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20th May 2011, 09:41 | #24 | Link | |
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21st May 2011, 16:44 | #25 | Link |
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Did someone already compared AVC-INTRA vs VP8-INTRA, i guess this could be really interesting also over several generations and in terms of speed
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all my compares are riddles so please try to decipher them yourselves :) It is about Time Join the Revolution NOW before it is to Late ! http://forum.doom9.org/showthread.php?t=168004 Last edited by CruNcher; 21st May 2011 at 16:53. |
22nd May 2011, 01:33 | #26 | Link | |
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23rd May 2011, 22:04 | #27 | Link | |
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libavcodec is the fastest VP8 decoder at now.
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24th May 2011, 04:58 | #28 | Link | |
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Besides, - ffdshow can decode VP8 through VfW - as a last resort, one can always remux VP8 in AVI and use AVISource() Last edited by space1999; 24th May 2011 at 05:29. |
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9th June 2011, 23:13 | #29 | Link | |
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I did two tests with the suggestion made by CruNcher: h.264 vs WebM. h.264: used x264 (r1995) with the command line provided by Atak_Snajpera. Code:
x264.exe "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\test.avs" --tff --bitrate 50000 --vbv-bufsize 5000 --vbv-maxrate 50000 --preset superfast --tune fastdecode --keyint 1 --ssim --output "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\GALV.mkv" Code:
ffmpeg.exe -i "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\test.avs" -y -b 50000k "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\GALV.webm" Code:
5759 frames, 29.97 fps, 1920x1080i X264 36.88 fps, 50 mbps SSIM: Structural Similarity Index Metric 0.23 Average SSIM= 88.66771698 FFMPEG VP8 ~ 2 fps, 23.9 mbps SSIM: Structural Similarity Index Metric 0.23 Average SSIM= 85.55319214 I think that WebM could be a candidate for intermediate codec when it gets faster encode times. This shouldn't be difficult considering it's a less complex format than h.264 (Or am I wrong?) Saludos By ALEX-KID |
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9th June 2011, 23:47 | #30 | Link |
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SSIM = 88.66771698 doesn't sound quite good enough for intermediate video, although I haven't used the AviSynth implementation on interlaced video. Anyway, I'd drop those VBV limits and use --crf 10 (or lower), and maybe pick a slower preset than superfast.
WebM might become an alternative at some point, but your test doesn't show how far it is. You compared x264 with very fast settings, intra-frame encoding, 50 mbps bitrate against WebM with slow settings, inter-frame encoding and 25 Mbps bitrate. Last edited by nm; 9th June 2011 at 23:51. |
10th June 2011, 04:57 | #31 | Link | |
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11th June 2011, 08:46 | #32 | Link |
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a PSNR of @ least 50 is generally ok for intermediate purposes and visually loss less SSIM most probably would be quite high in the 9x range 0.98-0.99 i guess so 50-70-100 Mbit/s seems to be a good base, and then look @ the decrease over 10 generations
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all my compares are riddles so please try to decipher them yourselves :) It is about Time Join the Revolution NOW before it is to Late ! http://forum.doom9.org/showthread.php?t=168004 Last edited by CruNcher; 11th June 2011 at 09:07. |
14th June 2011, 14:50 | #34 | Link |
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better to use q1, low coef matrix (flat 8), ME=1, VHQ=0 with only Iframe. Intermediate codec must have the best possible quality with high speed.
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Le Sagittaire ... ;-) 1- Ateme AVC or x264 2- VP7 or RV10 only for anime 3- XviD, DivX or WMV9 |
15th June 2011, 00:53 | #35 | Link |
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Some tests using XviD 1.3.2 (and its internal SSIM calculator)
Code:
Matrix CQ VHQ KeyInt Bytes XviD SSIM XviD DSSIM SSIM 0.25 Mbps EQM_EHR 2 1 240 2066947012 0.99756453 410.60 95.924313 61.31 FLAT8 2 1 240 2282251752 0.99719754 356.83 95.667952 67.70 EQM_EHR 2 0 240 2331591210 0.99705402 339.45 95.548083 69.16 FLAT8 2 0 240 2351546490 0.99704420 338.32 95.538876 69.75 EQM_EHR 2 0 1 2530233380 0.99758143 413.47 95.884627 75.06 EQM_EHR 2 1 1 2530233380 0.99758143 413.47 95.884627 75.06 FLAT8 2 0 1 4062787499 0.99728564 368.41 95.819092 120.52 FLAT8 2 1 1 4062787499 0.99728564 368.41 95.819092 120.52 EQM_EHR 1 1 240 4187715602 0.99925288 1,338.47 97.977496 124.22 EQM_EHR 1 0 1 4378203200 0.99907440 1,080.38 97.437817 129.87 EQM_EHR 1 1 1 4378203200 0.99907440 1,080.38 97.437817 129.87 FLAT8 1 1 240 4892268650 0.99971158 3,467.19 98.843035 145.12 EQM_EHR 1 0 240 5349473908 0.99987316 7,883.87 99.164567 158.68 FLAT8 1 0 240 5363731504 0.99987795 8,193.58 99.174940 159.11 FLAT8 1 0 1 5698372989 0.99954413 2,193.59 98.379881 169.03 FLAT8 1 1 1 5698372989 0.99954413 2,193.59 98.379881 169.03 Last edited by henryho_hk; 15th June 2011 at 15:55. Reason: SSIM Plugin 0.25 scores added |
15th June 2011, 15:26 | #37 | Link |
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"ffmpeg.exe" -threads 4 -i "E:\_Video_Samples\HDcam\00001.mts" -flags +ildct+ilme -b 50000000 -r 25.000 -vcodec libx264 -preset superfast -tune fastdecode -threads 4 -x264opts keyint=1:nal-hrd=vbr:vbv-bufsize=50000:vbv-maxrate=50000 -ab 512000 "C:\temp\AVC-INTRA.mp4" Decoding speed with libavcodec (1 thread) is ~55 fps
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16th June 2011, 21:28 | #38 | Link |
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Did some more tests, here is the info:
Code:
CLI CODEC/CODER BITRATE SPEED(fps) SSIM(v0.23) ------------------------------------------------------------- (1) x264 50 mbps 36.88 fps 88.66771698 (2) VP8(ffmpeg) 23.9 mbps ~2 fps 85.55319214 (3) x264 100 mbps 33.23 fps 95.32942963 (4) xvid_encraw 237 mbps 9.93 fps 96.94023053 (5) lagarith 235 mbps 35.30 fps 100.00000954 5759 frames, 29.97 fps, C2Q Q6600@2.4 GHz ------------------------------------------------ (1) x264.exe "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\test.avs" --tff --bitrate 50000 --vbv-bufsize 5000 --vbv-maxrate 50000 --preset superfast --tune fastdecode --keyint 1 --ssim --output "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\GALV.mkv" 36.88 fps, 50 mbps SSIM: Structural Similarity Index Metric 0.23 Average SSIM= 88.66771698 ------------------------------------------------ (2) ffmpeg.exe -i "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\test.avs" -y -b 50000k "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\GALV.webm" ~ 2 fps, 23.9 mbps SSIM: Structural Similarity Index Metric 0.23 Average SSIM= 85.55319214 ------------------------------------------------ (3) x264.exe "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\test.avs" --tff --bitrate 100000 --vbv-bufsize 20000 --vbv-maxrate 100000 --preset superfast --tune fastdecode --keyint 1 --output "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\GALV100.mkv" 33.23 fps, 100 mbps SSIM: Structural Similarity Index Metric 0.23 Average SSIM= 95.32942963 ------------------------------------------------ (4) xvid_encraw.exe -i "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\test.avs" -max_bframes 0 -cq 1 -quality 1 -vhqmode 0 -qmatrix "c:\Archivos de programa\K-Lite Codec Pack\Tools\Xvid_Quant_Matrices\Flat 8-16.xcm" -interlaced 2 -qtype 1 -threads 4 -o "c:\Documents and Settings\Alex-Kid\Mis documentos\Mis vídeos\GALV.avi" 9.93 fps 237 mbps SSIM: Structural Similarity Index Metric 0.23 Average SSIM= 96.94023053 ------------------------------------------------ (5) Lagarith (lossless, used as reference) 35.30 fps 235 mbps SSIM: Structural Similarity Index Metric 0.23 Average SSIM= 100.00000954 Does anyone know if well known Cineform has better values? Being a wavelet codec, could that be an advantage to achieve higher performance and quality? |
16th June 2011, 21:54 | #39 | Link |
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Could you try x264 without VBV and with CRF rate control instead of CBR, as suggested earlier:
--crf 8 --preset superfast --tune fastdecode --keyint 1 and also with slower settings: --crf 8 --preset veryfast --keyint 1 If you have time to play with it, adjust CRF so that you get a final bitrate close to 100 mbps. Then the result can be compared with your last numbers. Last edited by nm; 17th June 2011 at 01:06. |
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