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1st March 2006, 23:52 | #201 | Link |
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TMPGEnc converts it to RGB24 for you. Thus TMPSource also delivers RGB24. TMPGEnc uses fcc coefficients (=Rec.601) for the YV12->RGB24 (and vice versa) conversion.
Code:
TMPsource("yourtprfile") converttoyv12() So the script: Code:
TMPsource("yourtprfile") converttoyv12() ColorMatrix(d2v="xxx.d2v") |
15th March 2006, 10:18 | #203 | Link | |
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16th March 2006, 17:10 | #204 | Link |
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colormatrix partly obsoleted
I did some research, and bbmpeg can set the coefficients in advanced settings. Now you just set it the same as your source. If you have dvb/s or hdtv, set rec709, for cap set rec601, and for properly made xvid set rec601.
Only one problem, bbmpg is an older program and we need to increase the motion vector length, and apply some good matrices. I found that freeenc (based on libavcodec) has no option for color coefficients. Ideally we need the option in restream, to set the whole stream to a coefficient. There is one more problem of different coefficients in one stream, and the only solution so far is colormatrix. Use the coeff. of the main movie in the bbmpg settings, and use colormatrix with hints to convert 601->709 when 601 appears. |
16th March 2006, 17:40 | #205 | Link | |
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16th March 2006, 17:54 | #206 | Link |
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ffmpeg research
I see nothing in
http://ffmpeg.sourceforge.net/ffmpeg-doc.html#SEC9 relating to color coefficients. Any other ideas? Also http://mplayerhq.hu/~michael/ffmpeg-...ncContext.html Has a lot of info, I don't think it's there but I'm not sure. |
29th March 2006, 01:57 | #207 | Link |
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i read trough most parts of the thread. since a hdtv transport stream i recorded showed nothing in gspot i had to determine which coefficents were used. so i loaded the avs script into virtualdub took a screenshot and did the same with the mpeg in mpc. then i compared. i found that when i used colormatrix the result was more a match. now after encoding with x264 and nero digital avc the colors were to bright and i have to do the encode all over again. isnt there a way to determine for shure if to use colormatrix or not?
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29th March 2006, 09:47 | #208 | Link | |
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1st April 2006, 21:59 | #210 | Link | |
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20th April 2006, 03:48 | #212 | Link | |
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2nd May 2006, 04:11 | #218 | Link | ||
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Hi, I have a quick question!
Is it necessary to use colormatrix right after source, before ivtc? (I just remebemer someone saying that filter won't do anything if it didn't come right after the source..) I'm trying to encode something using "tivtc mkv-vfr" method and I can't use colormatrix, since I keep getting an error about clip being not matched, or something like this: Quote:
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I would appreciated it if someone would confirm this. Thanks in advance!! |
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2nd May 2006, 09:31 | #219 | Link | ||
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2nd May 2006, 10:20 | #220 | Link |
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It's a special function of the tfm 2-pass file, it errors out if you don't use exactly the same filters before tfm as you did on the first pass. tdec has the same check. Colormatrix should have no effect, but tfm's trying to protect against random changes that render the stats useless.
To disable the check, all you have to do is remove the "crc=" section from the beginning of the stats files. (Leave the other info though!) Colormatrix will still have an effect where it is now, though. It just won't be able to use hints to decide when it actually needs to be used, it'll just affect every frame (which is usually correct). |
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