How can encode by these codes?

[yasinaslan16]

When 407 and 709 are uploaded to Youtube they have the same (wrong) contrast.

Download the videos from Youtube and play them locally. I think you'll find the contrast is fine.

I check the contrast from the downloaded videos.

If your wish is to use a different color space for h.264 then x264 VUI need to be also modified - replace 709 by bt470bg i.e. colorprim=bt470bg:transfer=bt470bg:colormatrix=bt4 70bg , side to this you may wish to disable VUI signalization for full quantization range - currently this is: fullrange=on where it can be: fullrange=off for 16-235 luma sample values and 16 - 240 chroma sample values.

This worked !

Same contrast and colours when it's upload to Youtube !

@SET x264opts="deblock=2,3:bframes=2:bitrate=19000:vbv-maxrate=25000:vbv-bufsize=31250:colorprim=bt709:transfer=bt709:colormatrix=bt709:fullrange=off:level=5.1:keyint=151:keyint_min=150:scenecut=-1:nal-hrd=vbr:force-cfr=1:qpmin=4:cabac=1:nr=500:threads=auto:no-psnr:no-ssim"
@ffmpeg -threads %NUMBER_OF_PROCESSORS%*1.5 -i %1 -c:a copy -c:v libx264 -preset veryfast -tune fastdecode -profile:v high -x264opts %x264opts% -x264-params %x264opts% -vf "xbr=4,scale=iw/2:-2:sws_flags=spline:sws_dither=a_dither,colormatrix=bt601:bt709,format='pix_fmts=yuv420p'" -movflags faststart -y -f mp4 %1_YTaa.mp4
@pause

Hi,

firstly, sorry my bad english...

Where I can use these codes? I downloaded x264vfw and paste your code to Extra command line on x264vfw. Then run VirtualDub and configure. I paste this code again. Result ERROR ...

[sneaker]

You cannot use ffmpeg commands in x264vfw. You can use VirtulDub's "alias" and "convert format" filters if you want to convert the color matrix.

Like that for BT.709 to BT.601:

[Attachment 35244 - Click to enlarge]

Then e.g. "--colormatrix bt470bg" as an extra command for x264vfw. But I don't know what Youtube expects nor if it cares at all about color matrix metadata.

[yasinaslan16]

You cannot use ffmpeg commands in x264vfw. You can use VirtulDub's "alias" and "convert format" filters if you want to convert the color matrix.

Like that for BT.709 to BT.601:

[Attachment 35244 - Click to enlarge]

Then e.g. "--colormatrix bt470bg" as an extra command for x264vfw. But I don't know what Youtube expects nor if it cares at all about color matrix metadata.

Thanks for answer.

But I want to use all parametres in this code ..

@SET x264opts="deblock=2,3:bframes=2:bitrate=19000:vbv-maxrate=25000:vbv-bufsize=31250:colorprim=bt709:transfer=bt709:colormatrix=bt709:fullrange=off:level=5.1:keyint=151:keyint_min=150:scenecut=-1:nal-hrd=vbr:force-cfr=1:qpmin=4:cabac=1:nr=500:threads=auto:no-psnr:no-ssim"
@ffmpeg -threads %NUMBER_OF_PROCESSORS%*1.5 -i %1 -c:a copy -c:v libx264 -preset veryfast -tune fastdecode -profile:v high -x264opts %x264opts% -x264-params %x264opts% -vf "xbr=4,scale=iw/2:-2:sws_flags=spline:sws_dither=a_dither,colormatrix=bt601:bt709,format='pix_fmts=yuv420p'" -movflags faststart -y -f mp4 %1_YTaa.mp4
@pause

I search and this code for ffmpeg .. And I downloaded x64 static on http://ffmpeg.zeranoe.com/builds/

But I read articles and watch videos but I cant find how can use this codes..

I have to learn it. If you have time .. Could you explain by ScreenShots pls if you have time

[racer-x]

This will work, I just tested it out. You'll have to edit the path to your ffmpeg 64-bit.

SET PATH="C:\FFMpeg\64-bit"
@SET x264opts="deblock=2,3:bframes=2:bitrate=19000:vbv-maxrate=25000:vbv-bufsize=31250:colorprim=bt709:transfer=bt709:colormatrix=bt709:fullrange=off:level=5.1:keyint=151:keyint_min=150:scenecut=-1:nal-hrd=vbr:force-cfr=1:qpmin=4:cabac=1:nr=500:threads=auto:no-psnr:no-ssim"
for %%a in ("*.mp4") do ffmpeg -i "%%a" -c:v libx264 -preset veryfast -tune fastdecode -profile:v high -x264opts %x264opts% -x264-params %x264opts% -vf "xbr=4,scale=iw/2:-2:sws_flags=spline:sws_dither=a_dither,colormatrix=bt601:bt709,format='pix_fmts=yuv420p'" -movflags faststart -c:a copy -f mp4 "%%a_YTaa.mp4"

pause

And here is the test encode:

[yasinaslan16]

This will work, I just tested it out. You'll have to edit the path to your ffmpeg 64-bit.

SET PATH="C:\FFMpeg\64-bit"
@SET x264opts="deblock=2,3:bframes=2:bitrate=19000:vbv-maxrate=25000:vbv-bufsize=31250:colorprim=bt709:transfer=bt709:colormatrix=bt709:fullrange=off:level=5.1:keyint=151:keyint_min=150:scenecut=-1:nal-hrd=vbr:force-cfr=1:qpmin=4:cabac=1:nr=500:threads=auto:no-psnr:no-ssim"
for %%a in ("*.mp4") do ffmpeg -i "%%a" -c:v libx264 -preset veryfast -tune fastdecode -profile:v high -x264opts %x264opts% -x264-params %x264opts% -vf "xbr=4,scale=iw/2:-2:sws_flags=spline:sws_dither=a_dither,colormatrix=bt601:bt709,format='pix_fmts=yuv420p'" -movflags faststart -c:a copy -f mp4 "%%a_YTaa.mp4"

pause

And here is the test encode:

I dont know how use ffmpeg ? I find this code and I download ffmeg but I dont know use ... Can you teach me , How can I use this code ..

Edit: I found this video and l learned. https://www.youtube.com/watch?v=FHtQfmXv_Ek

Thanks to all ..