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jmac698 · 16th March 2006, 17:10

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, 17:10	#204 \| Link
jmac698 Registered User Join Date: Jan 2006 Posts: 1,867	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.