On Thu, 18 Jul 2019, Benjamin Turkus via ffmpeg-user wrote:
Hi All, I was hoping for some advice regarding the best way to sequence video filters when transcoding SD video to HD, de-interlacing, scaling, padding (pillar-box), etc. I know the order of filters is critical, but I haven't been able to determine if one way of doing this is better than another.
I think the general advice is that you should deinterlace first and then scale progressively.
Regards, Marton
Assuming 720x486 NTSC video, this is the best I came up with, though I am generally unsure about when to deinterlace when forcing interlaced-aware scaling. Any advice about filters, or anything else that comes up incidentally, would be greatly appreciated. Just looking for the best looking video here, and open to any ideas. ffmpeg -i mySD.mkv -c:v libx264 -pix_fmt yuv420p -b:v 8000000 -v:f "colormatrix=bt601:bt709, scale=1440:1080:interl=1:flags=lanczos, pad=1920:1080:240:0, yadif" -c:a aac -b:a 320000 -ar 48000 myHD.mp4 Thanks! -- Benjamin Turkus Assistant Manager, Audio and Moving Image Preservation Digital Collections Services The New York Public Library 40 Lincoln Center Plaza, New York, NY 10023 212.870.1609 | x21609 nypl.org _______________________________________________ ffmpeg-user mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
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