I'm posting just to c if any one can give me some better idea than what I've been trying so far
For some reason, rendering AVCHD 1920-1080 directly with Kdenlive gives bad results as something along the way sees many end/start frames the same or frozen.
Transcoding to other formats with Kdenlive doesn't give good render video quality for me, such as DNxHD.
So I reencode the MTS files to M2ts with ffmpeg -result: no more frozen frames after render. The rendered movie is smooth where clips are joined.
However, the rendered quality (mpeg2 12Mb) is not very pleasing -has blocky appearance close-up, and it's worse than direct MTS to mpeg2 12Mb rendering. I find it strange cos the m2ts is good quality, @ 40Mb.
I've tried rendering to mp4 and h264 formats, but no better.
How can I get a better render from the m2ts? for example, rendering to DVD PAL 16:9 VOB there is no blocky effect, just poorer Q at 8Mb.
I noticed that in that render profile there are the following extra flags: bufsize=1835008 packetsize=2048 muxrate=10080000
are any of these helping the VOB output to be smoother/not blocky?
grateful for any ideas