Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On Sun, 2006-09-10 at 12:13 +0100, Uwe Thiem wrote: On 29 August 2006 11:55, Iain Buchanan wrote: On Mon, 2006-08-28 at 14:16 +0100, Uwe Thiem wrote: === begin script === #! /bin/sh BITRATE=730 INFILE=dvd:// [snip] that seems to capture from dvd though? I may [not] have mentioned that I'm capturing from video camera through kino to raw dv files. I'm happy with the mpeg2 format for storing on HD. Obviously, you have to adjust INFILE (can also be a real file) oh, I should read the whole post first! and OUTFILE. You should set br to 128 for music movies. Play with BITRATE for higher quality or smaller file size. Beware that it takes *ages* but look at the result! I'll play with it. Ian, did you ever got around to try out the x264 stuff? not yet, it's on my todo list! There's too much happening right now... I will post back with success/failure! -- Iain Buchanan iaindb at netspace dot net dot au I'd give my right arm to be ambidextrous. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On 29 August 2006 11:55, Iain Buchanan wrote: On Mon, 2006-08-28 at 14:16 +0100, Uwe Thiem wrote: === begin script === #! /bin/sh BITRATE=730 INFILE=dvd:// [snip] that seems to capture from dvd though? I may [not] have mentioned that I'm capturing from video camera through kino to raw dv files. I'm happy with the mpeg2 format for storing on HD. Obviously, you have to adjust INFILE (can also be a real file) oh, I should read the whole post first! and OUTFILE. You should set br to 128 for music movies. Play with BITRATE for higher quality or smaller file size. Beware that it takes *ages* but look at the result! I'll play with it. Ian, did you ever got around to try out the x264 stuff? Uwe -- Mark Twain: I rather decline two drinks than a German adjective. http://www.SysEx.com.na -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On 29 August 2006 11:55, Iain Buchanan wrote: On Mon, 2006-08-28 at 14:16 +0100, Uwe Thiem wrote: Maybe, the scale is wrong for you. How many frame lines do your originals have? ummm blue :P ie. I wouldn't have a clue... how do I tell (not an expert here). If you start mplayer from the command line, doesn't it tell you? Uwe -- Mark Twain: I rather decline two drinks than a German adjective. http://www.SysEx.com.na -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On Mon, 2006-08-28 at 14:16 +0100, Uwe Thiem wrote: On 28 August 2006 13:39, Iain Buchanan wrote: On Fri, 2006-08-11 at 08:21 +0100, Uwe Thiem wrote: On 10 August 2006 23:06, Iain Buchanan wrote: Hi all, I'm trying out mencoder to try a few different codecs and formats for 1. dvd authoring and 2. just compressing to keep on my HD. For DVDs, try this: mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd \ -vf scale=720:576,harddup -srate 48000 -af lavcresample=48000 \ -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:\ vbitrate=5000:keyint=15:acodec=ac3:abitrate=192:aspect=4/3 \ -ofps 25 -o outfile.mpeg infile wow! I just got around to trying that a couple of days ago and it produces great output: fast, small file size, and no noticeable difference in quality between the mpeg and the original dv! (I watched many different clips many times over to make sure! on TV and on my LCD) But: the mpeg doesn't seem to scale right. My laptop display is 1680x1050, and hence the original dv output (4:3) has black edges on each side, but the converted mpeg plays stretched, so that everybody looks fat! Is this just a _player_ issue, or is it a problem with the encoding of the mpeg itself? I noticed the command line has aspect=4/3 in it already, which is the aspect of the original dv file... Maybe, the scale is wrong for you. How many frame lines do your originals have? ummm blue :P ie. I wouldn't have a clue... how do I tell (not an expert here). I tried without the aspect option and the aspect seems to be correct again. I actually overlooked compressing to keep on my HD in your original post. For that purpose, try: === begin script === #! /bin/sh BITRATE=730 INFILE=dvd:// [snip] that seems to capture from dvd though? I may [not] have mentioned that I'm capturing from video camera through kino to raw dv files. I'm happy with the mpeg2 format for storing on HD. Obviously, you have to adjust INFILE (can also be a real file) oh, I should read the whole post first! and OUTFILE. You should set br to 128 for music movies. Play with BITRATE for higher quality or smaller file size. Beware that it takes *ages* but look at the result! I'll play with it. thanks again! -- Iain Buchanan iaindb at netspace dot net dot au Luck, that's when preparation and opportunity meet. -- P.E. Trudeau -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On Fri, 2006-08-11 at 08:21 +0100, Uwe Thiem wrote: On 10 August 2006 23:06, Iain Buchanan wrote: Hi all, I'm trying out mencoder to try a few different codecs and formats for 1. dvd authoring and 2. just compressing to keep on my HD. For DVDs, try this: mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd \ -vf scale=720:576,harddup -srate 48000 -af lavcresample=48000 \ -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:\ vbitrate=5000:keyint=15:acodec=ac3:abitrate=192:aspect=4/3 \ -ofps 25 -o outfile.mpeg infile wow! I just got around to trying that a couple of days ago and it produces great output: fast, small file size, and no noticeable difference in quality between the mpeg and the original dv! (I watched many different clips many times over to make sure! on TV and on my LCD) But: the mpeg doesn't seem to scale right. My laptop display is 1680x1050, and hence the original dv output (4:3) has black edges on each side, but the converted mpeg plays stretched, so that everybody looks fat! Is this just a _player_ issue, or is it a problem with the encoding of the mpeg itself? I noticed the command line has aspect=4/3 in it already, which is the aspect of the original dv file... many thanks! -- Iain Buchanan iaindb at netspace dot net dot au The first 90% of a project takes 90% of the time, the last 10% takes the other 90% of the time. -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On 8/28/06, Iain Buchanan [EMAIL PROTECTED] wrote: On Fri, 2006-08-11 at 08:21 +0100, Uwe Thiem wrote: For DVDs, try this: mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd \ -vf scale=720:576,harddup -srate 48000 -af lavcresample=48000 \ -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:\ vbitrate=5000:keyint=15:acodec=ac3:abitrate=192:aspect=4/3 \ -ofps 25 -o outfile.mpeg infile Note that this is for a PAL DVD - if you want NTSC you need to change to -vf scale=720:480 and set the -ofps to 24/10001 or 30/10001 (the first for movies, second for tv shows) But: the mpeg doesn't seem to scale right. My laptop display is 1680x1050, and hence the original dv output (4:3) has black edges on each side, but the converted mpeg plays stretched, so that everybody looks fat! You could try dropping the -aspect option from the mencoder command line and let mplayer calculate the aspect itself, it's normally pretty good at that. -- Calvin Walton -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On Mon, 2006-08-28 at 22:09 +0930, Iain Buchanan wrote: On Fri, 2006-08-11 at 08:21 +0100, Uwe Thiem wrote: On 10 August 2006 23:06, Iain Buchanan wrote: Hi all, I'm trying out mencoder to try a few different codecs and formats for 1. dvd authoring and 2. just compressing to keep on my HD. For DVDs, try this: mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd \ -vf scale=720:576,harddup -srate 48000 -af lavcresample=48000 \ -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:\ vbitrate=5000:keyint=15:acodec=ac3:abitrate=192:aspect=4/3 \ -ofps 25 -o outfile.mpeg infile wow! I just got around to trying that a couple of days ago and it produces great output: fast, small file size, and no noticeable difference in quality between the mpeg and the original dv! (I watched many different clips many times over to make sure! on TV and on my LCD) sorry about replying to my own post, but I just wanted to get one thing clear: before I go and delete all my original .dv files, can anyone see any problem with this encoding method? thanks! -- Iain Buchanan iaindb at netspace dot net dot au I used to work in a fire hydrant factory. You couldn't park anywhere near the place. -- Steven Wright -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On 28 August 2006 14:35, Calvin Walton wrote: Note that this is for a PAL DVD - if you want NTSC you need to change to -vf scale=720:480 and set the -ofps to 24/10001 or 30/10001 (the first for movies, second for tv shows) NTSC has different frame rates for different *content*? How strange ... Uwe -- Mark Twain: I rather decline two drinks than a German adjective. http://www.SysEx.com.na -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On 8/28/06, Uwe Thiem [EMAIL PROTECTED] wrote: On 28 August 2006 14:35, Calvin Walton wrote: Note that this is for a PAL DVD - if you want NTSC you need to change to -vf scale=720:480 and set the -ofps to 24/10001 or 30/10001 (the first for movies, second for tv shows) NTSC has different frame rates for different *content*? How strange ... It doesn't, but our DVDs have extra interpolated frames inserted to get the frame rate up to 30fps, and generally removing these extra frames actually improves the quality of the encoding. Of course PAL countries don't have this problem...you just play the movie 4% faster! -Richard -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
On 10 August 2006 23:06, Iain Buchanan wrote: Hi all, I'm trying out mencoder to try a few different codecs and formats for 1. dvd authoring and 2. just compressing to keep on my HD. For DVDs, try this: mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=dvd \ -vf scale=720:576,harddup -srate 48000 -af lavcresample=48000 \ -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=9800:\ vbitrate=5000:keyint=15:acodec=ac3:abitrate=192:aspect=4/3 \ -ofps 25 -o outfile.mpeg infile Uwe -- Mark Twain: I rather decline two drinks than a German adjective. http://www.SysEx.com.na -- gentoo-user@gentoo.org mailing list
[gentoo-user] mencoder did nothing all night at 100% CPU!
Hi all, I'm trying out mencoder to try a few different codecs and formats for 1. dvd authoring and 2. just compressing to keep on my HD. This is what I tried last night: mencoder 2006.06.24_09-26-48.dv -o 2006.06.24_09-26-48.avi -ovc lavc -oac lavc that was ok, GREAT file size (original 350MB dv went down to 13MB), but crappy quality - I could see all the compression squares. Then I tried: mencoder 2006.06.24_09-26-48.dv -o 2006.06.24_09-26-48.avi -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:mv0:trell:v4mv:cbp:last_pred=3:predia=2:dia=2:vmax_b_frames=2:vb_strategy=1:precmp=2:cmp=2:subcmp=2:preme=2:qns=2 -oac lavc which was better quality, and still a great file size, but I could still see some quit noticeable compression artifacts. THEN I thought, well if I'm going to encode for DVD, lets try: $ mencoder 2006.06.24_09-26-48.dv -of mpeg -ovc lavc -lavcopts vcodec=mpeg2video -oac pcm -o 2006.06.24_09-26-48.mpeg which went straight to 100% CPU. I then went to bed, and when I got up in the morning 7 1/2 hours later, it was in the same spot at 100% cpu! The file size was 0 bytes. Heres the output: $ mencoder 2006.06.24_09-26-48.dv -of mpeg -ovc lavc -lavcopts vcodec=mpeg2video -oac pcm -o 2006.06.24_09-26-48.mpeg MEncoder 1.0pre8-3.4.6 (C) 2000-2006 MPlayer Team CPU: Intel(R) Pentium(R) 4 CPU 3.00GHz (Family: 15, Model: 2, Stepping: 9) MMX supported but disabled MMX2 supported but disabled CPUflags: Type: 15 MMX: 0 MMX2: 0 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1 Compiled with runtime CPU detection. 93 audio 211 video codecs success: format: 0 data: 0x0 - 0x15fd6500 RAWDV file format detected. VIDEO: [DVSD] 720x576 24bpp 25.000 fps0.0 kbps ( 0.0 kbyte/s) [V] filefmt:22 fourcc:0x44535644 size:720x576 fps:25.00 ftime:=0.0400 == Opening audio decoder: [libdv] Raw DV Audio Decoder AUDIO: 32000 Hz, 2 ch, s16le, 28800.0 kbit/2812.50% (ratio: 360-128000) Selected audio codec: [libdv] afm: libdv (raw DV audio decoder (libdv)) == PACKET SIZE: 2048 bytes, deltascr: 245760 Opening video filter: [expand osd=1] Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.00, round: 1 == Opening video decoder: [dshow] DirectShow video codecs Decoder supports the following YUV formats: YUY2 UYVY Decoder is capable of YUV output (flags 0x9) VDec: vo config request - 720 x 576 (preferred colorspace: Packed YUY2) [PP] Using codec's postprocessing, max q = 4. Could not find matching colorspace - retrying with -vf scale... Opening video filter: [scale] VDec: using Packed YUY2 as output csp (no 0) Movie-Aspect is undefined - no prescaling applied. SwScaler: BICUBIC scaler, from Packed YUY2 to Planar YV12 using C videocodec: libavcodec (720x576 fourcc=3267706d [mpg2]) Selected video codec: [qdv] vfm: dshow (Sony Digital Video (DV)) == Limiting audio preload to 0.4s. Increasing audio density to 4. Writing header... Killed (I killed it :) So, firstly, why didn't that work? And secondly, how should I encode if I want to write the movie to a DVD, and have really good quality (close to the original dv)? Lastly, how about storing on disk - what codec should I use there? As I said, I didn't like the quality of the first two attempts, so something a bit nicer, (at the expense of file size) would be good. Well, there are some big asks in this email - I appreciate anyone looking into it and offering tips. Thanks! (PS I've been reading: http://gentoo-wiki.com/HOWTO_Mencoder_Introduction_Guide http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-dvd-mpeg4.html#menc-feat-dvd-mpeg4-muxing-avi-limitations http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-enc-libavcodec.html http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-mpeg.html thanks.) -- Iain Buchanan iaindb at netspace dot net dot au Four fifths of the perjury in the world is expended on tombstones, women and competitors. -- Lord Thomas Dewar -- gentoo-user@gentoo.org mailing list
Re: [gentoo-user] mencoder did nothing all night at 100% CPU!
Iain Buchanan wrote: (I killed it :) So, firstly, why didn't that work? man mplayer -- exporting to MPEG is still not perfect. And secondly, how should I encode if I want to write the movie to a DVD, and have really good quality (close to the original dv)? Use ffmpeg. See the -target options. Steve -- gentoo-user@gentoo.org mailing list
