February 2010 - MEncoder-users - lists.mplayerhq.hu

Help with MPG video encoding
by Walter Belhaven 20 Apr '13

20 Apr '13

Hi, I've got a question on how to get the best possible MPG encoding of a movie source, "at any price" so to speak -- i.e., as many bits as the encoder needs to get the highest possible video quality. It appears to me that the MPG encoding process is introducing artifacts that are present regardless of the amount of "free reign" I give to the encoder with respect to quantization, bitrate, and the like. My bottom line question is thus: "Are these artifacts inherent in MPG encoding, or am I just not twiddling the knobs and dials on the encoder correctly?" Here's all the details ... My source is a mixed hard- and soft-telecined "movie" at 1080/60i that I'm trying to tanscode to 480/24p, soft telecined to 480/60i, for ultimate burning to an NTSC DVD-Video. When I use mencoder to inverse telecine, crop out the crud, expand back to the original letterbox ratio (it's 2.35:1, not 16/9), and 'encode' the video with HUFFYUV (422P), the resulting video looks stunning, with no 'blocking' artifacts to speak of. This, of course, is as expected. But when I encode the video in MPG2 or MPG4, even with vqscale=1 or vqscale=2, I see sometimes severe blocking in the resulting video. Is this because the chroma is being subsampled vertically and horizontally (4:2:0), or is it because 'vqscale' is (perhaps necessary but) not sufficient to get "maximum quality at any price" encoding? Thanks, WB ____________________________________________________________________________________ Be a PS3 game guru. Get your game face on with the latest PS3 news and previews at Yahoo! Games. http://videogames.yahoo.com/platform?platform=120121

3 9

B-frames and GOP with MPEG-2 for DVD
by Nicolas Hesler 16 Apr '11

16 Apr '11

Can anyone offer any input to the following command line? I've been trying to refine for the highest possible quality of MPEG-2 while staying DVD compliant. The source is 24fps. (Note: format=mpeg2, because format=dvd does not work with Adobe Encore 2.0). From what I understand, keeping GOP open, improves quality. Is this true? Is it 100% DVD compliant? Do I want to introduce B frames in my encoding? (The vb_strategy part of my command line is currently useless, right?) If parts of my video are reaching into 9-10 Mbs bitrate, would it beneficial to introduce B-Frames? Will it improve quality? (This is probably a stupid question) Are the sync issues with bframes only relevant to mpeg4 or lavf? mencoder -oac lavc -ovc lavc -of mpeg -mpegopts format=mpeg2:tsaf:telecine / -vf scale=720:480,harddup -mc 0 -noskip -srate 48000 -af lavcresample=48000:0:2 -lavcopts / vcodec=mpeg2video:vrc_buf_size=1835:vrc_maxrate=7000:vbitrate=6000:keyint=12 / :trell:mbd=2:precmp=2:subcmp=2:cmp=2:dia=-10:predia=-10:cbp:mv0:vqmin=1:lmin=1 / :dc=10:vpass=1:vb_strategy=2:acodec=ac3:abitrate=224:aspect=16/9:vstrict=0 -ofps 24000/1001 -o $output $input

12 43

yadif: what does "spatial interlacing check" mean?
by Christian Ebert 29 Jun '10

29 Jun '10

Hi, TFM say about the 2 and 3 options for yadif that they "skip spatial interlacing check". What does this mean exactly? What's the better way to go if I want better quality regardless of encoding time? And would recommendations differ if I use yadif in connection with mcdeint? TIA c -- \black\trash movie _C O W B O Y_ _C A N O E_ _C O M A_ Ein deutscher Western/A German Western -->> http://www.blacktrash.org/underdogma/ccc.html -->> http://www.blacktrash.org/underdogma/ccc-en.html

3 3

Re: [MEncoder-users] Need help fixing/decoding a recovered h264 file
by Marc MERLIN 03 Mar '10

03 Mar '10

On Fri, Feb 26, 2010 at 08:07:50PM +0100, Reimar Döffinger wrote: > To simplify my last mail: going by all the information you gave, testdisk > should not have the slightest problem restoring your file. To answer your later question, it's a 2GB SD card with FAT (not FAT32) Unfortunately it does. I tried testdisk first, but what happened was 1) I moved 2 videos off the card (which deleted them) 2) I then took 3 pictures on the card 3) later on my 2nd video got clobbered on my hard drive I know the 2nd video blocks are still on the card, but apparently not in contiguous order anymore. Testdisk only lets me undelete my 3 pictures, not the videos that are not in the directory entry anymore. The only way to get the 2nd video back is to scan the raw blocks and put them back together. > If it can't, find some other tool that can analyze FAT cluster chains, > the first cluster of your file obviously has not been overwritten, thus > at the very least the FAT still contains the data where the second cluster > of your file is. > PhotoRec just is the wrong tool for large data stored on FAT. testdisk documentation does say that it's the one of the 2 tools that can restore a file by scanning disk blocks if the file entry is gone. I looked at the testdisk documentation again and it does not seem like the right tool http://www.cgsecurity.org/wiki/TestDisk:_undelete_file_for_FAT (I also just tried testdisk 6.12-WIP, and didn't see any extra scan/undelete option) On Fri, Feb 26, 2010 at 09:33:03PM +0100, Reimar Döffinger wrote: > > > Well, the obvious question is: have you tried those undelete tools for FAT? > > > FAT contains a lot of redundant information and thus usually allows for rather > > > good recovery of "lost" data. > > > > I tried a few, > > Which? testdisk, photorec, photorecovery (windows), and cardrecovery (windows). photorecovery doesn't know how to handle MOV/AVC1 so it misses them cardrecovery did try to recover my MOV but got the wrong size and it won't play. Christophe is working on seeing if he can make photorecovery work in that case, but I think he's stalled. If you have a better tool and you'd be willing to give it a shot, the /dev/mmcblk0p1 image is here: ftp://ftp.merlins.org/sd (you'd have to put it on a 2GB sd card that's already partition and dd the file over /dev/mmcblk0p1) If you can somehow restore the video from there, I would be happy to make a donation for your time and/or the software you had to pay for (assuming it's commercial. I looked at a couple, but didn't really want to keep buying $40-$60 recovery software when I don't know they'll work here). > We are talking about FAT, right? FAT has no mechanisms to avoid fragmentation, > and for FAT32 the directories themselves are ordinary files, so it is never > very likely they are in order. I thought that on an empty filesystem, FAT would just allocate blocks in order, since why not? (and I do delete all the files before each recording, so the filesystem should be empty). > Not it is trivial for FAT. For every cluster of the file that was not overwritten the > FAT still contains the next cluster address. Oh, good. I'm not sure why photorecovery is having issues recovering then. > However if you didn't even write to the card since you deleted the file you would > just have had to replace one single byte (the first byte of the file name) to > "undelete" it. Yes, I know about ?ILE.MOV, but unfortunately at least that part isn't possible anymore, I did write 3 files on the card (about 10MB's worth which should only have overwritten the first 500MB video and not the second 500MB video I'm trying to get back). Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems & security .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/

4 10

-ss and -endpos cutting creates very visible h264 artifacts
by Marc MERLIN 02 Mar '10

02 Mar '10

I sometimes trim videos like this: mencoder -oac copy -ovc copy -ss 0 -endpos 4:00 source.avi -o dest.avi This worked fine until I started doing it with h264 encoded videos. Problem is that the first resulting keyframe isn't computed right and you get very visible artifacts like here: http://www.youtube.com/watch?v=AZJkFHWaTRI (see upper right of the picture for the first 10 seconds) I'm using SVN-r29237-4.4.1. Is there a fix to this problem? Thanks, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems & security .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/

4 9

Need help fixing/decoding a recovered h264 file
by Marc MERLIN 26 Feb '10

26 Feb '10

I have an mp4/avc1 file I recovered from an sd card where it was deleted by mistake. I recovered the file by scanning the sd card for the file header and then copying 600MB's worth of blocks, which should cover the entire video length. Because the files get removed each time I copy them off, I was somehow hoping that the blocks were contiguous on the card, and not fragmented. Sample of the file I can't decode and re-encode: ftp://marc.merlins.org/sd_short.mov The problem is that the file I recovered isn't quite playable and I don't know h264/avc1 file formats well enough to see if there is an easy fix or if my file is just hosed and gone. I actually tried to take the h264 file header from the good file shown below and attach the possibly broken file to that, but didn't get far since I just don't know the h264 headers. Could someone who's familiar with that format have a quick look and maybe give me a hint of what I could do to get mencoder to read and re-encode/fix the file? If you can somehow help me fix the video, I would owe you *big* time. This is a good file in exactly the same format and resolution than the file I'm trying to recover (I truncated it at 12MB) ftp://marc.merlins.org/GOPR0001_short.MP4 STREAM: Description: File STREAM: Author: Albeu LAVF_check: QuickTime/MPEG-4/Motion JPEG 2000 format libavformat file format detected. ==> Found video stream: 0 [lavf] Video stream found, -vid 0 ======= VIDEO Format ====== biSize 103 biWidth 1280 biHeight 720 biPlanes 0 biBitCount 24 biCompression 828601953='avc1' biSizeImage 2764800 Unknown extra header dump: [1] [4d] [0] [28] [ff] [e1] [0] [30] [27] [4d] [0] [28] [9a] [62] [80] [a0] [b] [76] [2] [20] [0] [0 ] [20] [0] [1d] [4c] [1d] [c] [0] [3d] [a] [0] [1] [12] [a9] [5d] [e5] [c6] [86] [0] [1e] [85] [0] [0] [89] [54] [ae] [f2] [e1] [88] [45] [1e] [0] [0] [1] [0] [4] [28] [ee] [3c] [80] (...) VIDEO: [avc1] 1920x1080 24bpp 29.970 fps 0.0 kbps ( 0.0 kbyte/s) Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264) This is the file that I recreated by copying the blocks from the sd card: ftp://marc.merlins.org/sd.mov It's 600MB but you can get the shorter version if you just want to see the headers: ftp://marc.merlins.org/sd_short.mov mplayer can see the h264 header and the 1920x1080 size, but that's about it: STREAM: [file] sd.mov STREAM: Description: File STREAM: Author: Albeu STREAM: Comment: based on the code from ??? (probably Arpi) LAVF_check: QuickTime/MPEG-4/Motion JPEG 2000 format libavformat file format detected. stream_seek: WARNING! Can't seek to 0x25800000 ! [mov,mp4,m4a,3gp,3g2,mj2 @ 0x8fc69d0]Could not find codec parameters (Video: h264, 1920x1080) LAVF_header: av_find_stream_info() failed Checking for YUV4MPEG2 ASF_check: not ASF guid! Checking for REAL Checking for SMJPEG Checking for Nullsoft Streaming Video Checking for MOV ISO: Unknown File Type Major Brand: avc1 ISO: File Type Minor Version: 0 ISO: File Type Compatible Brand #0: avc1 ISO: File Type Compatible Brand #1: isom ISO: File Type Compatible Brand #2: ISO: File Type Compatible Brand #3: MOV: Movie header found! MOV: unknown chunk: p 930516780 stream_seek: WARNING! Can't seek to 0x377B8F2C ! MOV: missing data (mdat) chunk! Maybe broken file... Checking for VIVO header block 1 size: 0 AVS: avs_check_file - attempting to open file sd.mov AVS: File is too big, aborting... Checking for PVA Checking for MPEG-TS... TRIED UP TO POSITION 66160, FOUND 47, packet_size= 0, SEEMS A TS? 0 Checking for LMLM4 Stream Format Invalid packet in LMLM4 stream: ch=0 size=1718909288 LMLM4 Stream Format not found sync_mpeg_ps: seems to be ES/PES stream... MPEG Stream reached EOF ds_fill_buffer: EOF reached (stream: video) MPEG packet stats: p100: 3965 p101: 1 p1B6: 0 p12x: 0 sli: 1 a: 0 b: 0 c: 0 id : 0 sps: 0 pps: 0 PES: 51 MP3: 11688, synced: 0 sync_mpeg_ps: seems to be ES/PES stream... MPEG Stream reached EOF ds_fill_buffer: EOF reached (stream: video) MPEG packet stats: p100: 3964 p101: 1 p1B6: 0 p12x: 0 sli: 1 a: 0 b: 0 c: 0 id : 0 sps: 0 pps: 0 PES: 51 MP3: 11688, synced: 0 ==> Found video stream: 0 ds_fill_buffer: EOF reached (stream: video) LAVF_check: QuickTime/MPEG-4/Motion JPEG 2000 format libavformat file format detected. stream_seek: WARNING! Can't seek to 0x25800000 ! LAVF_header: av_find_stream_info() failed demux_aac_probe, failed to detect an AAC stream Thanks for any help you could provide, Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems & security .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/

3 3

Re: [MEncoder-users] Need help fixing/decoding a recovered h264 file
by Marc MERLIN 26 Feb '10

26 Feb '10

On Thu, Feb 25, 2010 at 08:05:29PM -0800, RC wrote: > On Wed, 24 Feb 2010 07:06:56 -0800 > Marc MERLIN <marc_mplayer(a)merlins.org> wrote: > > > Is there a way to get more debugging out of mplayer/mencoder to see > > where it's looking for headers and which one it's missing? > > As many repetitions of '-v' as you can stand to read through... I missed the other -v levels. Ok. Bad: Playing sd.mov. get_path('sub/') -> '/home/merlin/.mplayer/sub/' [file] File size is 629145600 bytes STREAM: [file] sd.mov STREAM: Description: File STREAM: Author: Albeu STREAM: Comment: based on the code from ??? (probably Arpi) seek to 0x0 s->pos=0 newpos=0 new_bufpos=0 buflen=0 LAVF_check: QuickTime/MPEG-4/Motion JPEG 2000 format libavformat file format detected. seek to 0x0 mp_seek(0xa0d57a0, 0, 65536) 32768=mp_read(0xa0d57a0, 0xa0d6db4, 32768), eof:0 32768=mp_read(0xa0d57a0, 0xa0d6db4, 32768), eof:0 32768=mp_read(0xa0d57a0, 0xa0d6db4, 32768), eof:0 mp_seek(0xa0d57a0, 175849, 0) seek to 0x2AEE9 s->pos=18000 newpos=2A800 new_bufpos=2AEE9 buflen=0 32768=mp_read(0xa0d57a0, 0xa0d6db4, 32768), eof:0 mp_seek(0xa0d57a0, 327680, 0) seek to 0x50000 s->pos=33000 newpos=50000 new_bufpos=50000 buflen=0 32768=mp_read(0xa0d57a0, 0xa0d6db4, 32768), eof:0 mp_seek(0xa0d57a0, 629145600, 0) seek to 0x25800000 s->pos=58000 newpos=25800000 new_bufpos=25800000 buflen=0 stream_seek: WARNING! Can't seek to 0x25800000 ! ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ seek to 0x58000 s->pos=0 newpos=58000 new_bufpos=58000 buflen=0 [mov,mp4,m4a,3gp,3g2,mj2 @ 0xa0df9d0]Could not find codec parameters (Video: h264, 1920x1080) This seems to show that I have at least one page of data that is incorrect. I suppose fixing it from here would not be trivial :-/ And for comparison, good: [file] File size is 11541980 bytes STREAM: [file] /var/www/Pix/new/GOPR0001_rca_goodvid_10s.MP4 STREAM: Description: File STREAM: Author: Albeu STREAM: Comment: based on the code from ??? (probably Arpi) seek to 0x0 s->pos=0 newpos=0 new_bufpos=0 buflen=0 LAVF_check: QuickTime/MPEG-4/Motion JPEG 2000 format libavformat file format detected. seek to 0x0 mp_seek(0x9fd37d0, 0, 65536) 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 mp_seek(0x9fd37d0, 360448, 0) seek to 0x58000 s->pos=58000 newpos=58000 new_bufpos=58000 buflen=0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 mp_seek(0x9fd37d0, 11541980, 0) seek to 0xB01DDC s->pos=60000 newpos=B01800 new_bufpos=B01DDC buflen=0 mp_seek(0x9fd37d0, 360456, 0) seek to 0x58008 s->pos=B01DDC newpos=58000 new_bufpos=58008 buflen=0 187532=mp_read(0x9fd37d0, 0xb4fe4020, 187532), eof:0 mp_seek(0x9fd37d0, 547988, 0) seek to 0x85C94 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 84426=mp_read(0x9fd37d0, 0xa022562, 84426), eof:0 mp_seek(0x9fd37d0, 697950, 0) seek to 0xAA65E 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 123448=mp_read(0x9fd37d0, 0xb4f08dc4, 123448), eof:0 mp_seek(0x9fd37d0, 854166, 0) seek to 0xD0896 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 190898=mp_read(0x9fd37d0, 0xb4ed22b6, 190898), eof:0 mp_seek(0x9fd37d0, 1208904, 0) seek to 0x127248 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 167346=mp_read(0x9fd37d0, 0xb4ea3d76, 167346), eof:0 mp_seek(0x9fd37d0, 1409018, 0) seek to 0x157FFA 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 32768=mp_read(0x9fd37d0, 0x9fd4de4, 32768), eof:0 mp_seek(0x9fd37d0, 0, 65536) ==> Found video stream: 0 [lavf] Video stream found, -vid 0 aspect= 1920*0/(1080*1) ======= VIDEO Format ====== biSize 103 biWidth 1920 biHeight 1080 biPlanes 0 biBitCount 24 biCompression 828601953='avc1' biSizeImage 6220800 Unknown extra header dump: [1] [4d] [0] [28] [ff] [e1] [0] [30] [27] [4d] [0] [28] [9a] [62] [80] [f0] [4] [4f] [cb] [80] [88] [0] [0] [1f] [48] [0] [7] [53] [7] [43] [0] [5] [b8] [e0] [0] [19] [bf] [d5] [de] [5c] [68] [60] [0] [b7] [1c] [0] [3] [37] [fa] [bb] [cb] [87] [c2] [21] [14] [58] [1] [0] [4] [28] [ee] [3c] [80] -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Microsoft is to operating systems & security .... .... what McDonalds is to gourmet cooking Home page: http://marc.merlins.org/

2 2

Green Screen
by Juan Salazar 25 Feb '10

25 Feb '10

Hi, I trying to create a avi movie from a series of jpg files with mencoder. The problem is that the resulting avi file is just green. There's nothing else. I'm running the Mencoder for OS X version 0.7.7 (0.7.7.) via command line using the application in /Applications/Mencoder OS X.app/Contents/Resources on Mac OSX 10.6.2. The output from my terminal is below. I would appreciate any help! $ mencoder "mf://*.jpg" -mf fps=10:type=jpg -ovc lavc -lavcopts vcodec=mpeg4 -oac copy -o output.avi Using GNU internationalization Original domain: messages Original dirname: /usr/local/share/locale Current domain: mplayer Current dirname: /usr/local/share/locale MEncoder dev-CVS-030602-20:55-3.1 (C) 2000-2003 Arpad Gereoffy (see DOCS) AltiVec found Reading /Users/jsalazar/.mplayer/codecs.conf: can't open '/Users/jsalazar/.mplayer/codecs.conf': No such file or directory Reading /usr/local/etc/mplayer/codecs.conf: can't open '/usr/local/etc/mplayer/codecs.conf': No such file or directory Using built-in default codecs.conf File not found: 'frameno.avi' Failed to open frameno.avi Reading config file /Users/jsalazar/.mplayer/mencoder: No such file or directory Unknown protocol 'mf' Unable to open URL: mf://*.jpg success: format: 16 data: 0x0 - 0x0 [demuxer] mf support. [mf] search expr: *.jpg [mf] number of files: 11 (44) [V] filefmt:16 fourcc:0x47504A49 size:0x0 fps:10.00 ftime:=0.1000 Opening video filter: [expand osd=1] Expand: -1 x -1, -1 ; -1 (-1=autodetect) osd: 1 ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffmjpeg] vfm:ffmpeg (FFmpeg MJPEG decoder) ========================================================================== Writing AVI header... VDec: vo config request - 515 x 417 (preferred csp: Planar 444P) Could not find matching colorspace - retrying with -vop scale... Opening video filter: [scale] VDec: using Planar 444P as output csp (no 0) Movie-Aspect is undefined - no prescaling applied. SwScaler: reducing / aligning filtersize 1 -> 1 SwScaler: reducing / aligning filtersize 9 -> 8 SwScaler: reducing / aligning filtersize 1 -> 1 SwScaler: reducing / aligning filtersize 9 -> 8 SwScaler: BICUBIC scaler, from Planar 444P to Planar YV12 using C videocodec: libavcodec (515x417 fourcc=58564944 [XVID]) New_Face failed. Maybe the font path is wrong. Please supply the text font file (~/.mplayer/subfont.ttf). subtitle font: load_sub_face failed. Pos: 1.1s 11f ( 0%) 0fps Trem: 0min 0mb A-V:0.000 [35:0] Writing AVI index... Fixing AVI header... Video stream: 35.273 kbit/s (4409 bps) size: 4850 bytes 1.100 secs 11 frames

4 3

mencoder - Skipping frame!
by Philip Rhoades 25 Feb '10

25 Feb '10

People, When I record from a USB video grabber using: mencoder-1.0-0.111.20091029svn.fc12.x86_64 and: /usr/bin/mencoder tv:// -tv driver=v4l2:width=640:height=480:device=/dev/video0:adevice=hw.0:alsa:forceaudio -ovc lavc -oac mp3lame -o out.avi I see lots of these: mencoder - Skipping frame! When replaying, the audio is fine but the video continually displays "catching up" rapid video to resync with the audio. Is it the "Skipping frame" errors causing this? Thanks, Phil. -- Philip Rhoades GPO Box 3411 Sydney NSW 2001 Australia E-mail: phil(a)pricom.com.au

3 2

decoding h264
by double 24 Feb '10

24 Feb '10

Hello, We have problems demuxing a H264/AAC video in a quicktime container. Using "libavformat" results in AV-desync: mplayer http://doppelbauer.name/editlist.mov [mov,mp4,m4a,3gp,3g2,mj2 @ 0x9a5d900]multiple edit list entries, a/v desync might occur, patch welcome The MPlayer mov-demuxer works much better, but can't decode the video-stream: mplayer -demuxer mov http://doppelbauer.name/editlist.mov [h264 @ 0x8a1a640]number of reference frames exceeds max (probably corrupt input), discarding one I can't see any issues on a windows machine (Quicktime player). Thanks a lot Marcus

3 2