Moritz Barsnick wrote:
On Tue, Sep 15, 2015 at 22:50:54 +0100, Kieran O Leary wrote:
https://en.wikipedia.org/wiki/DVD-Video#Data_rate states: "...a
maximum of 9.80 Mbit/s can be used for video alone..."
I would recommend not declaring a bitrate at all if using -target
ntsc-dvd. You are using a preset for NTSC DVDs which is already
declaring various average/min/max bitrates within the DVD spec. I
think the PAL preset averages about 6Mbits per second from my
experience and produces very nice looking images.
Totally agree.
Just for info: For the ntsc-dvd target, ffmpeg sets the max rate at
9000000.
Only use target for progressive though - it will make a mess of
interlaced especially when the source is 422.
Maybe an "i" suffix on all the targets should be considered that scales
interl=1 and adds ilme/idct. Or maybe a warning only to
use -target on progressive/deinterlaced content would be easier :-)
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