Hi,
I have a Sony camera that records AVCHD 1920x1080 29.97 interlaced tff level 4.0 with ac3 audio.
I want to store family memories to DVD (don't have a BD writer right now).
It seems like the nicest way to watch them is in front of the big screen and saving them as AVCHD would ensure that the player will show it.
MP4 works fine via laptop and HDMI.
Realistically I (we) probably won't even watch these once in the next 5 years anyway, archive lossless then?
What to do?
Anyway, does ffmpeg do a 2-pass with -x264opts bluray-compat=1:etc
I get a "constant rate-factor is incompatible with 2pass"
ffmpeg -i cut.avs -preset veryslow -tune film -level 4.0 -top 1 -c:v libx264 -x264opts bluray-compat=1:<bunch of stuff>: pass=1 -an -y -f rawvideo NUL && ^
ffmpeg -i cut.avs -preset veryslow -tune film -level 4.0 -top 1 -c:v libx264 -x264opts bluray-compat=1:<bunch of stuff>: pass=2 -ab 256k -acodec ac3 -ac 2 out.264
Help with my command line please if that is the issue.
Thank you
edit- there is no space after <bunch of stuff>:
without the space, the forum gives me
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You need to set an average target bitrate. E.g. -b:v 5000k
OR not use 2 pass.
https://trac.ffmpeg.org/wiki/Encode/H.264 -
Great, thank you, I will give it a try.
If I used crf, I would use a value of 18.
What would be a good target bitrate if I have :vbv-maxrate=15000:vbv-bufsize=15000 in my x264opts? -
It's not clear why you're converting them at all. Sony Video cameras record AVCHD files, usually in an MTS container that should play as-is.
If you want to re-wrap to .mp4 you can us a simple ffmpeg command like
-i myfile.MTS -vcodec copy -acodec copy myfile.mp4
Why lose quality? -
- My sister Ann's brother
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