August 2006 - MEncoder-users - lists.mplayerhq.hu

Inverse telecine? framerate from 120000/1001 to 24000/1001
by Munzuk 13 Sep '06

13 Sep '06

Hi, Anime raws... Not sure of what I'm talking about, but I think that "inverse telecine" (whatever that means) is what I'm looking for. Have tried pullup and filmdint filters, maybe the best result till now was with filmdint=io=120000/1001:24000/1001:fast=0,softskip. But some scenes, which aren't very good even in the raw file, are still bad. Please help.

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PHP cannot execute some encoding commands
by Ko Ko 11 Sep '06

11 Sep '06

Hi When I use this command with PHP exec function it works fine. mplayer -ss 5 -frames 5 -vo jpeg:outdir=$outdir:quality=100 -contrast 20 test.avi After executing I got the 5 jpeg images from test.avi file in the output directory that I specified. But when I use this command with PHP mplayer -frames 5 -vo jpeg:outdir=$outdir:quality=100 -contrast 20 test.mpg It doesn't produce any jpeg images from test.mp file. I try out the same set of command on my Fedora itself as root or normal user it is manage to create output directory and produce the jpeg images. I have no idea why PHP command won't execute this command correctly. Can anyone help me with this? =( Regards, Leo Reality starts with Dream --------------------------------- Want to be your own boss? Learn how on Yahoo! Small Business.

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CPU utilization during encoding
by David Liontooth 06 Sep '06

06 Sep '06

I've been using the same script (below) for a year and a half, and chose this combination of parameters because it gave me a steady CPU utilization per card of 30%. Recently the CPU utilization has become variable, going between the low 20s to the high 70 and even above. Since I use two and even three cards in a machine, this means I now get lots of dropped frames. What changed in mencoder -- and is there something I can do to get a constant CPU utilization? mencoder -tv driver=v4l2:device=/dev/video1:fps=30000/1001:chanlist=us-cable:\ audiorate=32000:adevice=/dev/dsp1:input=0:amode=1:normid=4 -ffourcc DIVX -ovc \ lavc -oac mp3lame -lameopts cbr:br=128 -endpos $TIM -o $DIR/$FIL.avi tv:// > /dev/null Cheers, Dave

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avi cut with mencoder not playable by mplayer
by Christian Obst 01 Sep '06

01 Sep '06

Hi! I am trying to cut off the first few minutes of a DVB recording from TV with mencoder using the following command: mencoder -ss 4:49 -o movie-cut.avi movie.avi -oac copy -ovc copy mencoder processes fine and returns no errors. But when I try to play movie-cut.avi with mplayer, it just aborts with the following message: ------------------------------------------------------------------------ MPlayer 1.0pre8-4.1.2 (C) 2000-2006 MPlayer Team CPU: Intel(R) Celeron(R) M processor 1.50GHz (Family: 6, Model: 13, Stepping: 8) CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1 Compiled with runtime CPU detection. Linux RTC init error in ioctl (rtc_irqp_set 1024): Permission denied Try adding "echo 1024 > /proc/sys/dev/rtc/max-user-freq" to your system startup scripts. Opening joystick device /dev/input/js0 Can't open joystick device /dev/input/js0: No such file or directory Can't init input joystick Setting up LIRC support... mplayer: could not connect to socket mplayer: No such file or directory Failed to open LIRC support. You will not be able to use your remote control. Playing movie-cut.avi. AVI file format detected. AVI: ODML: Building ODML index (2 superindexchunks). VIDEO: [] 544x576 24bpp 25.000 fps 2114.6 kbps (258.1 kbyte/s) Clip info: Software: MEncoder 1.0pre8-4.1.2 ========================================================================== Opening audio decoder: [mp3lib] MPEG layer-2, layer-3 AUDIO: 48000 Hz, 2 ch, s16le, 192.0 kbit/12.50% (ratio: 24000->192000) Selected audio codec: [mp3] afm: mp3lib (mp3lib MPEG layer-2, layer-3) ========================================================================== open: No such file or directory Couldn't open: /dev/mga_vid open: No such file or directory Couldn't open: /dev/mga_vid [VO_TDFXFB] This driver only supports the 3Dfx Banshee, Voodoo3 and Voodoo 5. ========================================================================== Opening video decoder: [mpegpes] MPEG 1/2 Video passthrough VDec: vo config request - 544 x 576 (preferred colorspace: Mpeg PES) Could not find matching colorspace - retrying with -vf scale... Opening video filter: [scale] The selected video_out device is incompatible with this codec. Try adding the scale filter, 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)) ========================================================================== alsa-init: using device default alsa: 48000 Hz/2 channels/4 bpf/65536 bytes buffer/Signed 16 bit Little Endian AO: [alsa] 48000Hz 2ch s16le (2 bytes per sample) Starting playback... FATAL: Could not initialize video filters (-vf) or video output (-vo). alsa-uninit: pcm closed Exiting... (End of file) --------------------------------------------------------------------------- The original movie.avi was created with the command mencoder dvb://MyChannel -oac copy -ovc copy -o movie.avi What am I doing wrong? mplayer is version 1.0-pre8. Thanks for any help, Christian -- -o) /\\ Message void if penguin violated _\_V Don't mess with the penguin

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1080i TS -> 720p x264
by Jon Ferguson 31 Aug '06

31 Aug '06

I am trying to convert a 1080i ts stream to 720p x264. What I have done is created a fifo to conserve disk space. I startup mencoder like so, mencoder inputfile.ts -vf filmdinit,softskip,scale=1280:720 -ofps 24000/1001 -of rawvideo -ovc raw -vf swapuv -nosound -o /tmp/stream.yuv Then I use the x264 binary like so x264 -p 1 -b 3 --b-pyramid -r 8 -w -m 6 --b-rdo --mixed-refs -bime -t 2 --fps 24000/1001 --no-fast-pskip -A all --progress --threads 3 -o outputfile.nosound.mkv /tmp/stream.yuv 1280x720 The output is garbled. Without using scale it works as expected. According to the man page scale also does yuv->bgr conversion. I think this might be the problem. Is there a way to prevent it from converting to bgr or am I way of base?

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Writing multipart jpegs (mpjpeg) with mencoder?
by Stefan Neufeind 31 Aug '06

31 Aug '06

Hi, not too many people seem to have done this so far :-) But I've read that ffmpeg supports output of a "multipart-stream" of jpeg-images - a.k.a. mpjpeg. Unfortunately I didn't manage to give correct commandline options to make it usable from ffmpeg or even better mencoder. Could somebody give a clue for a correct commandline? The string "mpjpeg" is present in the mencoder-binary - so I guess it's somehow possible. I tried (without success) with: mencoder input.mp4 -ovc lavc -lavcopts vcodec=mpjpeg -o abc or mencoder input.mp4 -ovc lavc -lavcopts format=mpjpeg -o abc or similar. Regards, Stefan

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wmv -> mpeg A-V Sync Loss/Jump
by H.Edeler 30 Aug '06

30 Aug '06

When converting some wmv to mpeg (for DVD) I run into A-V Sync problems. There is a little fault in the wmv. The wmv is playing with mplayer without sync problems. At appr. 40sec there is something lost - a gap in the vid (maybe some 0,5sec) (not really a gap, it plays continousily, but you feel, there is something lost). From there on it still plays in A-V sync to the end. The mpeg is in A-V sync first. From the very moment, the wmv has its fault, the mpeg is out of sync. The video may be 0,5sec leading to the audio from there on. Mencoder reports at 42,5sec a duplicate frame, which is shortly after the fault in the wmv. I played with -noskip, -mc=0, harddup without success. How can I manage to get the mpeg in sync? I don't understand why audiostream is reported to be longer than videostream. What is the function of the audio-preload option? I wonder if vid and audio in the wmv might be more than 0.4sec in distance due to the fault. So I thougt about increasing the audio-preload buffer size to e.g. 1.5. Strange thing MEncoder reports 0.4s independing on any change. NB See log herewith. This is only one example of A-V sync loss. I run into this thing very often when converting wmv's to mpg. So I should be lucky if you can give any suggestions. Hagen ***************************************************************************** E:\WMV test>mencoder.exe test.wmv -ovc lavc -ofps 25.000 -of mpeg -mpegopts form at=dvd -vf scale=720:576,harddup -lavcopts vcodec=mpeg2video:vrc_buf_size=1835:v rc_maxrate=3000:vbitrate=2000:keyint=15:acodec=ac3:abitrate=96:aspect=4/3 -oac l avc -srate 48000 -af lavcresample=48000 -af resample=48000:1:0 -o test.mpg MEncoder dev-CVS--3.4.5 (C) 2000-2006 MPlayer Team CPU: Advanced Micro Devices Duron/Athlon 4/MP/XP Palomino (Family: 6, Stepping: 2) CPUflags: Type: 6 MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 0 SSE2: 0 Compiled with runtime CPU detection. success: format: 0 data: 0x0 - 0x95b1c7 ASF file format detected. VIDEO: [WMV3] 720x576 24bpp 1000.000 fps 0.0 kbps ( 0.0 kbyte/s) [V] filefmt:6 fourcc:0x33564D57 size:720x576 fps:1000.00 ftime:=0.0010 ========================================================================== Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders AUDIO: 44100 Hz, 2 ch, s16le, 96.0 kbit/6.81% (ratio: 12005->176400) Selected audio codec: [ffwmav2] afm: ffmpeg (DivX audio v2 (FFmpeg)) ========================================================================== PACKET SIZE: 2048 bytes, deltascr: 43885 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: [scale w=720 h=576] ========================================================================== Opening video decoder: [dmo] DMO video codecs DMO dll supports VO Optimizations 0 1 DMO dll might use previous sample when requested GetOutput r=0x0 size:1244160 align:1 StreamCount r=0x0 1 1 Decoder supports the following formats: YV12 YUY2 UYVY YVYU RGB8 RGB555 RGB565 R GB24 RGB32 Decoder is capable of YUV output (flags 0x1b) VDec: vo config request - 720 x 576 (preferred colorspace: Packed YUY2) VDec: using Planar YV12 as output csp (no 0) Movie-Aspect is undefined - no prescaling applied. SwScaler: using unscaled Planar YV12 -> Planar YV12 special converter videocodec: libavcodec (720x576 fourcc=3267706d [mpg2]) Selected video codec: [wmv9dmo] vfm: dmo (Windows Media Video 9 DMO) ========================================================================== Limiting audio preload to 0.4s Increasing audio density to 4 Writing header... INITV: 0.200, 0.160, fps: 25.000 Pos: 0.8s 21f ( 2%) 0.00fps Trem: 0min 7mb A-V:0.080 [0:96] Skipping frame! Pos: 1.2s 32f ( 2%) 0.00fps Trem: 0min 12mb A-V:0.083 [2066:96] Skipping frame! Pos: 1.7s 44f ( 3%) 36.79fps Trem: 0min 9mb A-V:0.082 [1857:96] Skipping frame! Pos: 2.5s 65f ( 4%) 35.40fps Trem: 0min 12mb A-V:0.081 [1802:96] Skipping frame! Pos: 7.6s 194f (12%) 33.26fps Trem: 0min 13mb A-V:0.083 [1720:96] Skipping frame! Pos: 42.5s 1067f (66%) 32.59fps Trem: 0min 15mb A-V:-0.082 [1942:96] 1 duplicate frame(s)! [mpeg2video @ 009DCCD8]Warning: AVFrame.pts=? trying to guess (1063) Pos: 64.6s 1619f (100%) 32.64fps Trem: 0min 16mb A-V:-0.082 [1969:95] 1 duplicate frame(s)! [mpeg2video @ 009DCCD8]Warning: AVFrame.pts=? trying to guess (1616) Pos: 64.7s 1621f (100%) 32.63fps Trem: 0min 16mb A-V:-0.050 [1968:96] Flushing video frames Writing index... Overhead: 3.199% (71741776503252796 / 128071251872120864) Writing header... Video stream: 1968.542 kbit/s (246067 B/s) size: 15925508 bytes 64.720 secs 1621 frames Audio stream: 96.000 kbit/s (11999 B/s) size: 781824 bytes 65.152 secs

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adding subtitles
by Mark Longridge 29 Aug '06

29 Aug '06

Hi folks, I successfully added subtitles to an mpeg video: mencoder file.mpg -o file.avi -oac copy -ovc lavc -lavcopts vcodec=mpeg4 -sub subtitle.srt It plays back fine on my linux box using mplayer but under windows using windows media player I only hear sound and no video. Here are some particulars about the original file: Playing file.mpg. MPEG-PS file format detected. VIDEO: MPEG1 352x240 (aspect 12) 29.970 fps 1150.0 kbps (143.8 kbyte/s) ========================================================================== Opening audio decoder: [mp3lib] MPEG layer-2, layer-3 AUDIO: 44100 Hz, 2 ch, s16le, 224.0 kbit/15.87% (ratio: 28000->176400) Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG layer-2, layer-3) Basically I want to do some video titling using linux tools but have some certainty that the end result will be watchable by windows users. Thanks in advance... Mark

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video size
by Andrew Collington 28 Aug '06

28 Aug '06

Hi, I'm just getting to grips with mencoder (and ffmpeg) and have a bit of an issues. When I join a 4.8MB .mov file and a 60K .mp4 video, it turns out to be a 10MB file! Any reason for this giant leap in file size? Looking at the details with ffmpeg, this is what the two files look like: Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'lc-intro-320x240.mp4': Duration: 00:00:03.0, start: 0.000000, bitrate: 157 kb/s Stream #0.0(und): Video: mpeg4, yuv420p, 320x240, 25.00 fps(r) Stream #0.1(und): Audio: aac, 44100 Hz, stereo Seems that stream 1 comes from film source: 749.00 (1498/2) -> 15.00 (15/1) Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '4-1156708550931399.mov': Duration: 00:02:10.6, start: 0.000000, bitrate: 295 kb/s Stream #0.0(eng): Audio: qdm2, 22050 Hz, stereo Stream #0.1(eng): Video: svq3, yuv420p, 320x240, 15.00 fps(r) and the output is: Input #0, avi, from 'output.avi': Duration: 00:02:12.6, start: 0.000000, bitrate: 619 kb/s Stream #0.0: Video: mpeg4, yuv420p, 320x240, 25.00 fps(r) Stream #0.1: Audio: aac, 44100 Hz, stereo, 87 kb/s The command I'm using is: mencoder lc-intro-320x240.mp4 4-1156708550931399.mov -o output.avi -oac lavc -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:trell:v4mv:turbo:autoaspect:acodec=aac:abitrate=192 Any way I can optimize this to have it more along the file size of the second input file (the 4.8MB file)? Many thanks!! Andy

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Re: [MEncoder-users] Mencoder h.264 incompatibility?
by Jim Driscoll 26 Aug '06

26 Aug '06

I create ipod Compatible Files with: -af volume=13:1 -aspect 16:9 -of lavf -lavfopts format=psp:i_certify_that_my_video_stream_does_not_use_b_frames -oac lavc -ovc lavc -lavcopts aglobal=1:vglobal=1:coder=1:vcodec=mpeg4:acodec=aac:vbitrate=640:abitrate=12 8 -vf scale=374:214,crop=368:208:3:3,pp=fa,harddup -info name="": -ofps 24000/1001 The volume is in there for DVD sources. And obviously this is for a 16:9 source. Mencoder doesn't seem to set the bit rate correctly for AAC when combined with h264 for ipods. If someone knows how to get aac and h264 to work with JUST Mencoder please reply. Change the mpeg4 to h264 and you have a PSP compatible file, OR you can add -srate 24000, but you can get higher quality audio on the PSP with h264. > I'm using mencoder to rip a dvd to the h.264 format (mp4 container for > ipod). The settings are configured for ipod, but when it encodes, the > ipod won't play video, it will only play the audio part. Can someone please post all options necessary for mencoder to create mp4-files which play on an iPod? I'd think that would be a valuable addition for the manual, too. Regards, -- Aaron "Optimizer" Digulla a.k.a. Philmann Dark "It's not the universe that's limited, it's our imagination. Follow me and I'll show you something beyond the limits." http://www.philmann-dark.de/

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