October 2011 - MEncoder-users - lists.mplayerhq.hu

27 Apr '13

Hi, I wanted to combine 12 flash video files (from youtube) into a single avi file. So I did cat at Zachar*.flv > Zach_all.flv $ mencoder Zach_all.flv -o Zach_all.avi -forceidx -ovc copy -oac pcm The output shows skipping frames, and missing aspect information, as you see below. What do I need to do to fix that, so thet when I am transcoding into .avi, I do not get these skips and missing aspect info? MEncoder SVN-r31628-4.4.5 (C) 2000-2010 MPlayer Team success: format: 0 data: 0x0 - 0x8378f0a libavformat file format detected. [flv @ 0x92d07a0] Estimating duration from bitrate, this may be inaccurate [lavf] stream 0: video (h264), -vid 0 [lavf] stream 1: audio (aac), -aid 0 VIDEO: [H264] 480x270 0bpp 29.917 fps 119.2 kbps (14.5 kbyte/s) [V] filefmt:44 fourcc:0x34363248 size:480x270 fps:29.917 ftime:=0.0334 ========================================================================== Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding) AUDIO: 44100 Hz, 2 ch, s16le, 49.5 kbit/3.51% (ratio: 6184->176400) Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio)) ========================================================================== videocodec: framecopy (480x270 0bpp fourcc=34363248) Writing header... ODML: Aspect information not (yet?) available or unspecified, not writing vprp header. Writing header... ODML: Aspect information not (yet?) available or unspecified, not writing vprp header. Pos: 0.7s 21f ( 0%) 14.38fps Trem: 0min 0mb A-V:0.067 [0:1411] Skipping frame! Pos: 1.1s 33f ( 0%) 18.45fps Trem: 0min 0mb A-V:0.068 [150:1411] Skipping frame! Pos: 6.0s 182f ( 0%) 38.81fps Trem: 65min 1014mb A-V:0.067 [148:1411] Skipping frame! Pos: 23.5s 706f ( 0%) 43.90fps Trem: 70min 1142mb A-V:0.067 [106:1411] Skipping frame! Pos: 38.4s 1153f ( 0%) 44.83fps Trem: 68min 1147mb A-V:0.067 [113:1411] Skipping frame! Pos: 57.4s 1723f ( 0%) 44.84fps Trem: 66min 1117mb A-V:0.068 [124:1411] Skipping frame! Pos: 76.9s 2306f ( 1%) 44.36fps Trem: 65min 1089mb A-V:0.067 [128:1411] Skipping frame! Pos: 98.4s 2950f ( 1%) 44.17fps Trem: 65min 1092mb A-V:0.067 [126:1411] Skipping frame! Pos: 117.5s 3522f ( 1%) 43.68fps Trem: 65min 1086mb A-V:0.067 [128:1411] Skipping frame! Pos: 132.5s 3972f ( 2%) 43.76fps Trem: 66min 1092mb A-V:0.067 [127:1411] Skipping frame! Pos: 153.7s 4608f ( 2%) 44.14fps Trem: 66min 1104mb A-V:0.067 [126:1411] Skipping frame! Pos: 173.1s 5190f ( 2%) 43.84fps Trem: 68min 1133mb A-V:0.067 [120:1411] Skipping frame! Pos: 190.3s 5705f ( 3%) 44.08fps Trem: 67min 1122mb A-V:0.067 [121:1411] Skipping frame! Pos: 211.7s 6347f ( 3%) 43.80fps Trem: 66min 1114mb A-V:0.068 [124:1411] Skipping frame! Pos: 228.7s 6856f ( 3%) 43.84fps Trem: 66min 1113mb A-V:0.067 [124:1411] Skipping frame! Pos: 248.1s 7436f ( 4%) 44.06fps Trem: 65min 1110mb A-V:0.067 [125:1411] Skipping frame! Pos: 265.3s 7954f ( 4%) 43.82fps Trem: 66min 1120mb A-V:0.067 [123:1411] Skipping frame!

5 28

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

Building MPlayer-MEncoder on Mac OS X since gcc 4.2 no longer works
by L. Lee 02 Nov '11

02 Nov '11

I tried to compile latest SVN MPlayer/MEncoder in Lion for the first time in about a month, and the built-in Mac developer tools don't seem to handle it anymore. The error is "Your binutils version is too old and not supported". I built gcc 4.6 with Fink and tried again, but now I get a series of errors such as: {standard input}:173:no such instruction: `vcvtsi2sd (%rdx), %xmm1,%xmm1' Can you suggest a way to compile it? Thanks. Laine Lee

4 10

Drastic changes in mencoder MPEG2 edl file support?
by al ansorge 25 Oct '11

25 Oct '11

I, too, have similar experience with the MPEG2 sync failing. In my case, I use the SUSE packman distribution, and starting about June or July of this year, the sync started failing. I don't know enough to know just what changed on my PC, but I do (or did) accept all suggested patches.

1 0

problems with x.264 from an IPTV stream
by Matija Grabnar 24 Oct '11

24 Oct '11

I'm using mplayer/mencoder from http://www.debian-multimedia.org. Upto about a month ago I was able to watch and record the iptv stream from SiOL TV on my debian machine, but now all I get is error messages like this: Stream not seekable! Stream not seekable! TS file format detected. Stream not seekable! VIDEO H264(pid=257) AUDIO MPA(pid=258) SUB Teletext(pid=770) PROGRAM N. 1 Stream not seekable! FPS seems to be: 25.000000 [V] filefmt:29 fourcc:0x10000005 size:720x576 fps:25.000 ftime:=0.0400 ========================================================================== Requested audio codec family [mpg123] (afm=mpg123) not available. Enable it at compilation. Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders AUDIO: 48000 Hz, 2 ch, floatle, 192.0 kbit/6.25% (ratio: 24000->384000) Selected audio codec: [ffmp2float] afm: ffmpeg (FFmpeg MPEG layer-1 and layer-2 audio) ========================================================================== Opening video filter: [expand osd=1] Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1 ========================================================================== Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264) ========================================================================== MP3 audio selected. [h264 @ 0xd54080]time_scale/num_units_in_tick invalid or unsupported (0/0) [h264 @ 0xd54080]sps_id out of range [h264 @ 0xd54080]non-existing SPS 0 referenced in buffering period [h264 @ 0xd54080]non-existing PPS 0 referenced [h264 @ 0xd54080]decode_slice_header error [h264 @ 0xd54080]no frame! Error while decoding frame! [h264 @ 0xd54080]non-existing PPS 0 referenced [h264 @ 0xd54080]decode_slice_header error [h264 @ 0xd54080]no frame! Error while decoding frame! [h264 @ 0xd54080]non-existing PPS 0 referenced [h264 @ 0xd54080]decode_slice_header error [h264 @ 0xd54080]no frame! Error while decoding frame! [h264 @ 0xd54080]non-existing PPS 0 referenced [h264 @ 0xd54080]decode_slice_header error [h264 @ 0xd54080]no frame! Error while decoding frame! [h264 @ 0xd54080]non-existing PPS 0 referenced [h264 @ 0xd54080]decode_slice_header error [h264 @ 0xd54080]no frame! Error while decoding frame! And I no longer get any frames in the capture - either watching with mplayer or trying to record with mencoder. (I understand the "stream not seekable" are not a problem, I had them when everything worked). I don't know if the SiOL people changed their codec, or if it was a change in mencoder/mplayer. Anybody have any hints on what I can do to be able to view/reencode the stream again?

3 3

Drastic changes in mencoder MPEG2 edl file support?
by Jim Lind 24 Oct '11

24 Oct '11

I'm attempting to duplicate the output of an mencoder build on my Mac with my Linux box. I've got an MPEG2 file that I'm attempting to cut up. mencoder MyTest.mpg -edl MyTest.edl -oac copy -ovc copy -of mpeg -o MyTestCut.mpeg On the Mac I show: MEncoder dev-SVN-r27545-4.0.1 (C) 2000-2008 MPlayer Team On the Linux box I show: MPlayer SVN-r34132 (C) 2000-2010 MPlayer Team The video output by the older Mac release is quite a bit larger than the Linux file. The Mac encoded video is also synced. Does anybody know off the top of their head if there was some drastic changes to the codebase that would affect this basic command? I know that a lot of code, obviously, should have changed in two years, but I am hoping there is a command on the newer release that will allow me to chop video the same way the old release did. It is possible that I have some kind of bad codecs or something on my linux box, but I'm doubtful. Thanks.

1 0

mencoder finds duplicate start-frames in openRTSP MPEG4 captured avis
by ted morris 14 Oct '11

14 Oct '11

I updated this post with some more info I learned very recently -- This might be slightly 'off-topic' for the mencoder group and I have also cross posted in the live555 forum as well. Per problems below with capturing mpeg4 through RTP/RTSP packets with my Sony SNC-CH240 high res Net camera-- I discovered the issue is that there are vop start frames that are sent within the RTP payload immediately preceding vop I-frame group type frames. I looked at openRTSP code and what *might* be happening is that openRTSP is assigning a time-stamp to the start-frame type, then assigning the *next* timestamp to the I-frame. The source code in openRTSP indicates it can only handle one vop frame type per packet payload. :-? There appears to possibly be a dropped frame between the duplicate+ I-frame to preserve the desired framerate (15 fps). Also-- and I now know this for a fact -- the camera does not send any vop end-of-sequence frames; only continuous (!) vop start-frames. So I'm questioning if openRTSP can even handle streams like this or not. Would anyone out there be able to suggest or recommend RTSP capture software alternative that can run on linux to openRTSP? If there is a way to deduce if a frame is actually there but being tossed out during decoding the MPEG4 with mencoder, I would very much like to hear any suggestions from the group. Does mencoder currently utilize openRTSP libraries? thanks, ted

1 0

removing duplicate frames from avi mp4 source file
by ted morris 12 Oct '11

12 Oct '11

Greetings, I have these really big *.avi contained mp4 video files, that were originally captured via OpenRTSP/live555 @ 15 fps. (1970x1440). x 1 hr . mencoder determines that there are duplicate frames and then proceeds to encode the duplicates. Then, when playing back the video, the video has these annoying little pauses due to the duplicate frames -- and ofcourse makes the file larger than it should be (~3 GB). I tried the -noencodeduplicat option but I get the same result. I also use the -nosound option because the videos don't have audio.(nor do I want it). I would prefer to still use lavc (ffmpeg codec) for my processed avi file. Would anyone know a trick to get rid of the duplicate frames? thanks for any suggestions in advance, t

2 3

Re: [MEncoder-users] mencoder & images sequence from Raid disk problem
by yannick tholomier 08 Oct '11

08 Oct '11

The frames sequence is created from a several machine... Maybe Mencoder is reading the creating date to set the order into the movie? ======= le 2011-10-08, 03:20:49 vous écriviez: ======= >Hello, >I'm new here. > >I have a problem. >I'm using Mencoder to convert images sequence to movie. >Everything is fine except that: >when i'm using mencoder to convert image sequence from Raid disks, the converted movie is weird: All frames are randomly written inside the movie. I can't understand what order is that... (It is not a digits problem.) >No problem from a local drive. > >Please help me. >This problem appears at the end of a long developping... > >Thx, > >Tais. > >_______________________________________________ >MEncoder-users mailing list >MEncoder-users(a)mplayerhq.hu >https://lists.mplayerhq.hu/mailman/listinfo/mencoder-users > = = = = = = = = = ========= = = = = = = = = = = yannick tholomier ytholomier(a)free.fr 2011-10-08

1 0

Re: [MEncoder-users] mencoder & images sequence from Raid disk
by Angel 08 Oct '11

08 Oct '11

>Hello, >I'm new here. > >I have a problem. >I'm using Mencoder to convert images sequence to movie. >Everything is fine except that: >when i'm using mencoder to convert image sequence from Raid disks, the >converted movie is weird: All frames are randomly written inside the >movie. I can't understand what order is that... (It is not a digits >problem.) >No problem from a local drive. > >Please help me. >This problem appears at the end of a long developping... > >Thx, > >Tais. > What is your command line? Is it the same in both cases? If you are using something like "frame-*.png" to specify your images, then they could come out in a different order depending on your shell and/or filesystem ... I've seen date order and inode order before (and even in one weird case, a fs that gives you files in order least-fragmented first). That's the only thing I can think of where the underlying disk would make a difference. -- Sent from my Android phone with K-9. Please excuse my brevity.

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