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Search: Posts Made By: Sagittaire
Forum: Video Encoding and Conversion 07-31-2007, 07:42 AM
Replies: 1
Views: 644
Posted By Sagittaire
FFMPEG: News from Libavcodec for MPEG2

I make new test with Libavcodec (with mencoder frontend but you can use ffmpeg/ffvfw/ffshow too).

- New vbv correction: Libavcodec make always vbv compliant stream now with all setting.
- New...
Forum: Video Encoding and Conversion 07-18-2007, 11:47 AM
Replies: 9
Views: 914
Posted By Sagittaire
I speak about only real image here. ...

I speak about only real image here.




Yes 3100 Kbps is a good bitrate for 720*576 resolution: with medium compressibility source, quality will be always good if you use a good MPEG2 encoder.
...
Forum: Video Encoding and Conversion 07-18-2007, 07:13 AM
Replies: 9
Views: 914
Posted By Sagittaire
Well it's 1000 Kbps video encoding with 320*416...

Well it's 1000 Kbps video encoding with 320*416 real resolution -> imply 3100 Kbps for 720*576 real resolution with the same bits/pixel.
Forum: Video Encoding and Conversion 06-19-2006, 06:40 AM
Replies: 14
Views: 818
Posted By Sagittaire
Well 2200 is average bitrate for this movie. IMO...

Well 2200 is average bitrate for this movie. IMO MPEG2 use certainely very higher local bitrate for this specific scene. But don't forget that for very complexe and long high motion scence (like fire...
Forum: Video Encoding and Conversion 05-27-2006, 11:16 AM
Replies: 10
Views: 929
Posted By Sagittaire
I make visual test with CCE and HCEnc and notch...

I make visual test with CCE and HCEnc and notch work not really good in multipass mode : these encoder use higher ratio/offset for bframe and inter matrix for Notch is really too agressive for that...
Forum: Video Encoding and Conversion 05-26-2006, 08:35 AM
Replies: 10
Views: 929
Posted By Sagittaire
Notch is optimized matrix for TMPGEnc but...

Notch is optimized matrix for TMPGEnc but certainely not for all MPEG2 encoder. TMPGEnc in CQ mode use very constant macroblock quantizer (for I,P and B and for inter/intra block) but not CCE. Notch...
Forum: Video Encoding and Conversion 04-17-2006, 04:22 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
Actually I think that friendly user Open Source...

Actually I think that friendly user Open Source encoder like HCEnc or QEnc produce compliant stream. More difficult with Mencoder (bitrate restriction) but it's possible for medium/low bitrate and I...
Forum: Video Encoding and Conversion 04-17-2006, 09:58 AM
Replies: 112
Views: 5,981
Posted By Sagittaire
If you want I can make that too but it's really...

If you want I can make that too but it's really useless particulary for Philips SAP (old or new) simply because DVD-Video Verifier v1.5.0 from Philips itself say "compliant stream". But I make...
Forum: Video Encoding and Conversion 04-16-2006, 05:06 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
Well You say always "Mencoder can't make...

Well You say always "Mencoder can't make compliant stream". I say "I think that Mencoder can make complaint stream and I will try to prove that".

- I post my profil CLI and my procedure encoding...
Forum: Video Encoding and Conversion 04-16-2006, 01:44 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
You say "use this particular SAP for your test"....

You say "use this particular SAP for your test". I use this SAP and my stream play very well. IMO I can make test with all these old SAP too if you want ... but result will be always the same simply...
Forum: Video Encoding and Conversion 04-08-2006, 10:39 AM
Replies: 112
Views: 5,981
Posted By Sagittaire
Well in fact your previous problem for mencoder...

Well in fact your previous problem for mencoder was:
- Overflow problem
- Motion vector range problem

1) Overflow problem
My multipass profil solve this problem only for medium/low bitrate...
Forum: Video Encoding and Conversion 04-06-2006, 02:30 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
Well first result for Pionner: - Pioneer...

Well first result for Pionner:

- Pioneer DV-380 : Seem OK
- Pioneer DV-444 : Seem OK
- Pioneer DV-454 : Seem OK
- Pioneer DV-575 : Seem OK

I can't find tester for DVR-220 ... :oops:
Forum: Video Encoding and Conversion 03-29-2006, 02:20 AM
Replies: 112
Views: 5,981
Posted By Sagittaire
yes hank315 (as always) done good solution. but...

yes hank315 (as always) done good solution. but hank315 is MPEG2 dev ... it's really easy for him.

quantiser linear non-linear
0 (forbidden)
1 2 1
2 4 2
3 6 3
4 8 4...
Forum: Video Encoding and Conversion 03-28-2006, 07:36 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
I will test that with my "mencoder low bitrate...

I will test that with my "mencoder low bitrate profil" and I post result here.
Forum: Video Encoding and Conversion 03-28-2006, 04:58 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
Unfortunaly I format actually my system...

Unfortunaly I format actually my system (Motherboard out ... snif) but ffdshow is very recent version.

Anyway, linear or no linear, adaptative or not adaptative is not important. Linear...
Forum: Video Encoding and Conversion 03-27-2006, 11:28 AM
Replies: 112
Views: 5,981
Posted By Sagittaire
Well it's not my fault if Bitrate Viewer can't...

Well it's not my fault if Bitrate Viewer can't analyse correctly the MPEG2 stream. FFDShow or Impressionist MPEG2 analyser can make correct quantizer analysis ... :roll:

And yes actually...
Forum: Video Encoding and Conversion 03-26-2006, 08:17 AM
Replies: 112
Views: 5,981
Posted By Sagittaire
bug is confirmed by DBZ : Quantizer info from...

bug is confirmed by DBZ : Quantizer info from Bitrate Viewver are simply totaly false for all Libavcodec codec like Mencoder or QEnc ... :wink:
Forum: Video Encoding and Conversion 03-26-2006, 06:35 AM
Replies: 112
Views: 5,981
Posted By Sagittaire
1) Well unfurtunaly mencoder-cvs-20060323 seem...

1) Well unfurtunaly mencoder-cvs-20060323 seem buggy. This version drop first frame and broke multipass stat file.

Use previous versions like mencoder-cvs-20060321. Here mencoder/mpalayer package...
Forum: Video Encoding and Conversion 03-25-2006, 09:27 AM
Replies: 112
Views: 5,981
Posted By Sagittaire
well read my faq 1) first pass...

well read my faq





1) first pass at q6 (vqscale=3) done 2711 Kbps. If you want no underflow you must use less than 2700 Kbps for final bitrate.

2) you want for final bitrate 4000 Kbps
Forum: Video Encoding and Conversion 03-24-2006, 05:30 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
I will try to update profil: - VCD, SVCD, DVD...

I will try to update profil:
- VCD, SVCD, DVD profil
- PAL, NTSC profil
- progressive, telecine, interlaced profil
- Fast, normal, high and insame profil

Stream bug and quality optimisation
-...
Forum: Video Encoding and Conversion 03-24-2006, 12:49 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
IMO all ME speed improvement are good ... ...

IMO all ME speed improvement are good ...




I read your old Mencoder sub-forum: there was 2 problems:
- Motion Vector Range problem : solved with me-range setting
- Rate Control with...
Forum: Video Encoding and Conversion 03-24-2006, 08:24 AM
Replies: 112
Views: 5,981
Posted By Sagittaire
add −ofps 24000/1001 or −ofps 30000/1001 option ...

add −ofps 24000/1001 or −ofps 30000/1001 option

I test only PAL progressive source but it's possible to make interlaced encoding too (from lavc documentation ... but I don't test that)



...
Forum: Video Encoding and Conversion 03-22-2006, 04:31 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
- by first fast pass at Q6 : final bitrate must...

- by first fast pass at Q6 : final bitrate must be always inferior
- by compressibility test with modified source avs script
source=SelectRangeEvery(source, 300, 15) is 5% test...
Forum: Video Encoding and Conversion 03-21-2006, 07:40 PM
Replies: 112
Views: 5,981
Posted By Sagittaire
well try this: ...

well try this:
http://oss.netfarm.it/mplayer-win32.php

be carefull :

- final bitrate must be always inferior to fast first pass at q6. Ik you want know compressibility Q6 make little...
Forum: Audio Conversion 03-21-2006, 07:29 PM
Replies: 19
Views: 1,163
Posted By Sagittaire
My hear are good too ... last AAC HE V1 (from...

My hear are good too ... last AAC HE V1 (from Nero or CT) sound like 80-96 Kbps MP3.

64 Kbps AAC HE V1 sound like 128 MP3 CBR (latest lame build) for my hear.
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