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22nd September 2005, 01:44 | #41 | Link | ||
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I'm still intersted on figures from a newer P4 or A64. While the P3 numbers are relevent, a control would be nice. |
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16th October 2005, 17:34 | #42 | Link |
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ok i finally found the time to finalize the comparison
the following additions have been made: - ateme - videosoft - ffdshow with pentium3 specific compile flags (thx celtic_druid!) - elecard - values showing how the different decoders perform on specific coding tools (maybe gives devs a hint on what needs tuning) i hope you guys find it interesting
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16th October 2005, 18:05 | #43 | Link |
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The way you're computing decoder's efficiency for each tools is flawed : you have to measure the loss of time, not the loss of fps. Because losing 1sec on a 5 sec decoding time at 100 fps means a drop of 16.66 fps, while losing 1 sec on a 5 sec decoding time at 50 fps means a drop of 8.33 fps.
Enabling a feature almost always add a constant time, not a proportionnal fps loss. Also, do consider that incertitude on fps figures you're giving are at least 2 fps. Finally, what was the average quantizer of the clip you used ( out of curiosity, i think it might explain why ateme's decoder goes faster when deblocking -5 is enabled... )
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16th October 2005, 19:20 | #44 | Link | ||
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the ranking didnt change much, as most decoders perform in the same range (additionally there is the incertitude you mentioned) Quote:
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16th October 2005, 22:54 | #45 | Link |
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almost forgot to mention: another interesting thing i found was that ffdshow and/or libavcodec seems to have gotten slower since the last test
and that altough celtic_druid made a pentium3 specific build, which should give faster results than the old ffdshow build i used the first time (without p3 specific stuff) still the new ffdshow showed on not so few samples worse results than with the old version...
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23rd October 2005, 21:38 | #46 | Link |
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ok i now added info about interlacing support of the decoders:
ateme, nero and elecard support fields-only, paff and mbaff (also with i8x8 of the high profile) mainconcept theoretically does this too, but seems to be very buggy as it shows lots of artefacts with all modes moonlight supports fields-only and paff (also with i8x8 of the high profile), but shows artefacts with paff too videosoft supports fields-only libavcodec doesnt support interlacing at all
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Between the weak and the strong one it is the freedom which oppresses and the law that liberates (Jean Jacques Rousseau) I know, that I know nothing (Socrates) MPEG-4 ASP FAQ | AVC/H.264 FAQ | AAC FAQ | MP4 FAQ | MP4Menu stores DVD Menus in MP4 (guide) Ogg Theora | Ogg Vorbis use WM9 today and get Micro$oft controlling the A/V market tomorrow for free Last edited by bond; 23rd October 2005 at 21:47. |
29th October 2005, 06:11 | #48 | Link |
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There is. But teasing bond like that is a shame, since he only has a p3 866. But, of course, nothing prevents you from doing the test yourself.
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29th October 2005, 12:13 | #49 | Link |
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yep testing more and higher resolutions (i mainly tested D1) would be very interesting, but i am not the right one to talk to cause a pentium3 866mhz might not be representative at all for this
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31st October 2005, 14:58 | #50 | Link | |
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But yeah, like Manao said, there's nothing stopping you testing it yourself!
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1st November 2005, 02:47 | #52 | Link |
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So there are still some guys with PIII class CPU??? I'm not the only one ? On my PC (PIII 1Ghz) AVC decoding is really a pain, I've noticed a faster playback with vlc and mplayer, but it's not good enough to be watched (it lost audio sync).... I'will try elecard's decoder.
P.S.: maybe I'm really a bad boy, but why don't you include QuickTime 7 too in your tests (maybe because it su##s?)? |
1st November 2005, 04:15 | #53 | Link | |
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i will add the cqm test asap
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1st November 2005, 04:38 | #54 | Link | |
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Quicktime is consistently slower, also doesn't support high profile. (At least that's all I need to know. =p) |
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1st November 2005, 19:47 | #55 | Link | |||
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Using main profile with cabac, 3 reference frame and 3 b-frame (and alpha and beta deblocking +3) it works with a little of audio delay, but without skipping the audio or video frame. Now I've just made a little test without multiple reference frame and deblocking and 2 b-frame and it seems to work (but it was just 1:30 of video and audio). Anyone can suggest safe PIII settings (of course I will continue testing tonight)? Quote:
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21st November 2005, 11:26 | #56 | Link |
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Ateme vs Nero
I am permanently confused reading here about Ateme vs Nero:
Is it same or different codec? More over, it's written that it supports High Profile. I don't see any such options in Nero Recode |
21st November 2005, 11:30 | #57 | Link |
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I'd say once more to use search feature, but that piece of information is a little bit harder to find that the other one. Anyway :
* nero uses ateme's encoder, from december 2004 * nero doesn't use ateme's decoder. * both decoders support high profile * ateme's encoder from december 2004 doesn't support high profile ( hence nero's too )
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24th November 2005, 01:07 | #59 | Link |
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2 months past now should be time for a update
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24th November 2005, 01:36 | #60 | Link | |
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edit: of course if some producer sends me an unlimited copy of a tool, i will be so happy about it i will test it right away
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