[MEncoder-users] Making an AVI which delcares itself to be interlaced

[Grozdan Nikolov (openSUSE Linux)]

On Friday 21 March 2008 22:54, Andy Civil wrote:
> Hi
>
> I'm trying to make an xvid avi file which is interlaced. Although the
> following command works quite well, the resulting AVI doesn't seem to be
> LABELLED as interlaced (although the content clearly is). What this means
> is, then when I use this kind of file in another program, I have to specify
> for each one, that it's interlaced (which is a bind, when I have fifty or
> so to do).
>
> If I use "gspot" on the file produced here, it doesn't light up with either
> TFF or BFF flags.
>
> Any options I'm missing that could make the interlaced flag be on?

try...

-vf scale=720:480,harddup,phase=t,tinterlace=2

alternatively

-vf scale=720:480,harddup,tinterlace=4

since interlacing is added after scaling, there's no need to enable 
interlace-aware software scaling

also keep in mind that when interlacing, your frame rate will be halved. So if 
you interlace a 60p content (59.94 fps) it will become 30i (29.970 fps). You 
must use in this case the -ofps 30000/1001 options

>
> My command (copy/paste):
>
> I:\me\mencoder -oac mp3lame -lameopts preset=standard:fast -ovc xvid
> -xvidencopts
> trellis:quant_type=h263:vhq=2:me_quality=6:chroma_me:closed_gop:max_bframes
>=2:bitrate=10000000:interlacing=1 -vf scale=720:480:1,il=s,harddup -ofps
> 30000/1001 -o
> "XVID\20080215145859_i1_vils.m2t.avi" "20080215145859.m2t"
>
> Here's the start of my output:
> E:\Sony\2008-02-15>I:\me\mencoder -oac mp3lame -lameopts
> preset=standard:fast -o vc xvid -xvidencopts
> trellis:quant_type=h263:vhq=2:me_quality=6:chroma_me:closed
> _gop:max_bframes=2:bitrate=10000000:interlacing=1 -vf
> scale=720:480:1,il=s,hardd up -ofps 30000/1001 -o
> "XVID\20080215145859_i1_vils.m2t.avi" "20080215145859.m2t "
> MEncoder Sherpya-SVN-r25962-4.2.3 (C) 2000-2008 MPlayer Team
> CPU: Intel(R) Pentium(R) 4 CPU 2.40GHz (Family: 15, Model: 2, Stepping: 7)
> CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
> Compiled with runtime CPU detection.
> success: format: 0  data: 0x0 - 0x19af5d4
> TS file format detected.
> VIDEO MPEG2(pid=2064) AUDIO MPA(pid=2068) NO SUBS (yet)!  PROGRAM N. 100
> VIDEO:  MPEG2  1440x1080  (aspect 3)  29.970 fps  25000.0 kbps (3125.0
> kbyte/s) [V] filefmt:29  fourcc:0x10000002  size:1440x1080  fps:29.97 
> ftime:=0.0334
> ==========================================================================
> Opening audio decoder: [mp3lib] MPEG layer-2, layer-3
> AUDIO: 48000 Hz, 2 ch, s16le, 384.0 kbit/25.00% (ratio: 48000->192000)
> Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3)
> ==========================================================================
> xvid: using library version 1.1.3 (build xvid-1.1.3)
> Opening video filter: [expand osd=1]
> Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
> Opening video filter: [harddup]
> Opening video filter: [il=s]
> Opening video filter: [scale w=720 h=480 interlaced=1]
> ==========================================================================
> Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough
> VDec: vo config request - 1440 x 1080 (preferred colorspace: Mpeg PES)
> The selected video_out device is incompatible with this codec.
> Try appending the scale filter to your filter list,
> e.g. -vf spp,scale instead of -vf spp.
> VDecoder init failed :(
> Opening video decoder: [libmpeg2] MPEG 1/2 Video decoder libmpeg2-v0.4.0b
> Selected video codec: [mpeg12] vfm: libmpeg2 (MPEG-1 or 2 (libmpeg2))
> ==========================================================================
> MP3 audio selected.
> VDec: vo config request - 1440 x 1080 (preferred colorspace: Planar YV12)
> VDec: using Planar YV12 as output csp (no 0)
> Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
> SwScaler: reducing / aligning filtersize 9 -> 8
> SwScaler: reducing / aligning filtersize 9 -> 8
> SwScaler: reducing / aligning filtersize 10 -> 9
>
> Thks for any hints...

-- 
Regards