I'm trying to decide how best to save my home movies on to DVD to free
up the tapes for re-use. I think if I made the DVD's player-compliant
then I would lose resolution, so I'm looking at this simply as a file
If I simply save the files to DVD, I get 22 minutes per DVD, which is
okay, but will result in a big stack of them (especially since I like to
keep two copies just in case).
I'd like to use ffmpeg to compress the videos further with no more than
a trivial loss of quality. The bitrate would have to be at least halved
(to ~ 12000kb/s) for it to be worth while. What codec should I be
looking at? The obvious candidates seem to be x264 and XviD. Any obvious
quality tips, such as "use -flags +loop" and "use two-pass encoding"
would be most welcome.
ffmpeg says this about my file (sorry about the crappy wrapping):
I:\Plan Sony>\ffmpeg_stuff\ffmpeg.exe -i 20080213133737.m2t
FFmpeg version SVN-r11143, Copyright (c) 2000-2007 Fabrice Bellard, et al.
configuration: --enable-gpl --enable-pp --enable-swscaler
enable-liba52 --enable-avisynth --enable-libamr-nb --enable-libamr-wb
ibfaac --enable-libfaad --enable-libgsm --enable-libmp3lame
able-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid
libavutil version: 49.5.0
libavcodec version: 51.48.0
libavformat version: 52.1.0
built on Dec 3 2007 17:42:57, gcc: 4.2.2 (mingw32)
Input #0, mpegts, from '20080213133737.m2t':
Duration: 00:00:20.9, start: 272.379100, bitrate: 26427 kb/s
Stream #0.0[0x810]: Video: mpeg2video, yuv420p, 1440x1080 [PAR 4:3
, 25000 kb/s, 29.97 tb(r)
Stream #0.1[0x814]: Audio: mp2, 48000 Hz, stereo, 384 kb/s
Must supply at least one output file
(P.S. I can't find a windows binary for ffprobe anywhere - is there a
way to get ffmpeg to tell more about the file? It doesn't mention that
it's interlaced, for example. And if I use -v verbose, it actually gives
no info about the file at all!)