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Old 22nd April 2018, 03:07   #1  |  Link
iSeries
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Blank video

Hi,

I'd like to create a bluray audio disc, wondered how I go about creating a blank (black) video track with x264?
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Old 22nd April 2018, 03:37   #2  |  Link
raffriff42
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x264 can't generate video, so you will need some other software (maybe a GUI like Movie Studio, or an ffmpeg command, or an AviSynth script).

What software do you know and use now? Knowing that, someone here can tell you the best way for you to create a blank track.

For example, ffmpeg (stolen from here)
Code:
ffmpeg -f lavfi -i color=c=black:s=640x480 -i audio.ogg -c:v libx264 -tune stillimage -pix_fmt yuv420p -shortest -c:a aac -b:a 128k output-with-audio.mp4
Avisynth (off top of head, not tested)
Code:
## 2 hours of black
BlankClip(width=640, height=480, fps=30000, fps_denominator=1001, pixel_type="YV12", length=30*60*60*2)

## add audio
AudioDub(DirectShowSource("audio.ogg"))

## trim to audio duration
AudioTrim(0.0, length=AudioDuration)
The AviSynth script could be opened in any compatible encoding software (too many to list here - like I said, what do you use now?)
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Old 22nd April 2018, 23:25   #3  |  Link
iSeries
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Ffmpeg worked perfect, thanks
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