Terje J. Hanssen wrote:
Hi List,
I'm a new user here and want suggestions for "best" ffmpeg syntax to
transcode PAL 576i DV source files to compliant SD-BD_x264m2ts and/or
SD-BD_mpeg2.m2ts.
The AVCHD-SD specification is possibly something that could be used
https://en.wikipedia.org/wiki/AVCHD#Specifications
My purpose is to
- archive this on 25GB-50GB BD-R discs in an suited format for future
editing
- keep the source quality at relative high bit-rate (i.e AVC at 15 Mbps
or MPEG-2 (I-frame?) at 25 Mbps)
- playback compliance with BD-players.
- keep by copy the DV LPCM audio if possible.
Working with interlaced content can be tricky, keep your masters even
if you think the blu-rays are OK at first sight.
The closest samples as references I've found for encoding Blu-ray are
these:
1) with x264 (video only)
http://www.x264bluray.com/home/576i-pal
Which does do an interlaced encode - but tff.
It's possible DV is bff so you would need to check what your content is.
2) with ffmpeg
http://forum.videohelp.com/threads/365667-FFmpeg-best-settings-to-encode-Blu-Ray?p=2332049&viewfull=1#post2332049
Not suitable for interlaced content.
I want suggestions how to possibly "merge" relevant parameters from 1)
x264 into 2) ffmpeg syntax ?
ffmpeg can use -x264-params tp pass things to libx264 just an example
pasted from old notes which doesn't mean it's correct and of course it's
for 709HD content with abnormally low bitrate.
-vcodec libx264 -b:v 10000k -preset veryslow -tune film -level 4.1
-x264-params
"bluray-compat=1:vbv-maxrate=11000:vbv-bufsize=30000:keyint=30:open-gop=1:slices=4:tff=1:colorprim=bt709:transfer=bt709:colormatrix=bt709:sar='1:1'"
3) As a first attempt I tried to apply 2) mostly as is, but didn't
succeed to get LPCM audio copied:
ffplay and VLC can playback the out video file SD-BD_x264.m2ts without
Audio.
As lpcm doesn't work maybe truehd? ISTR there was a gsoc project to encode.
_______________________________________________
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
http://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
