How to encode to interlaced with ffmpeg libx264?

[Atak_Snajpera]

My ffmpeg command line
"ffmpeg.exe" -i "E:\pal.mts" -vcodec libx264 -preset superfast -tune fastdecode -threads 0 -b 50000000 -r 25.000 -x264opts keyint=1:tff -ab 384000 "C:\temp\video.mp4"

and i get this
http://www.picamatic.com/show/2011/06/06/10/01/7609703_641x484.png

I used latest builds from http://ffmpeg.zeranoe.com/builds/

PS. I also tried tff=1 and interlaced=1

[poisondeathray]

I haven't tested it but apparently you need to add --nal-hrd --vbv-buffersize --vbv-maxrate

i don't know if "buffersize" is a typo for vbv-bufsize as the CLI version

see this thread
http://doom10.org/index.php?topic=1757.0

[Atak_Snajpera]

Thanks for your help!

Proper command line for interlaced looks like this
"ffmpeg.exe" -i "E:\pal.mts" -vcodec libx264 -preset superfast -tune fastdecode -threads 0 -b 50000000 -r 25.000 -flags +ildct+ilme -x264opts keyint=1:nal-hrd=vbr:vbv-bufsize=5000:vbv-maxrate=50000:tff=1 -ab 384000 "C:\temp\video.mp4"

[Atak_Snajpera]

BTW Does anybody know where can I find multithreaded ffmpeg builds?

[Chikuzen]

Multi-threaded AVC decoder has already been committed both ffmpeg/libav.
http://git.libav.org/?p=libav.git;a=commit;h=6a9c85944427e3c4355bce67d7f677ec69527bff

latest builds are here.
http://win32.libav.org/

[LoRd_MuldeR]

BTW Does anybody know where can I find multithreaded ffmpeg builds?

Shouldn't any recent build be multi-threaded (we are talking about the decoders, right?), since the 'MT' branch has been merged?

Recent FFmpeg builds can be found here, for examples:
http://ffmpeg.zeranoe.com/builds/

[Atak_Snajpera]

Is this normal that on my Q6600@3ghz I have no more that 65% of cpu utilization

latest builds from http://ffmpeg.zeranoe.com/builds/
"ffmpeg/ffmpeg.exe" -i "E:\pal.mts" -vcodec libx264 -preset superfast -tune fastdecode -threads 0 -b 50000000 -r 25.000 -flags +ildct+ilme -x264opts keyint=1:nal-hrd=vbr:vbv-bufsize=5000:vbv-maxrate=50000:tff=1 -acodec copy "C:\temp\video.mp4"

http://www.picamatic.com/show/2011/06/07/02/31/7610883_1375x816.png

PS. Also ffplay.exe does not EXCEED 25% (1 core) while playing.
http://www.picamatic.com/show/2011/06/07/02/51/7610899_607x211.png

[Chikuzen]

"ffmpeg/ffmpeg.exe" -threads 4 -i "E:\pal.mts" -vcodec libx264 -preset superfast -tune fastdecode -threads 0 ...

[Atak_Snajpera]

Thanks!