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• Use ffmpeg to cut mkv file [migrated]

  16 avril 2014, par Chk0nDanger

  I tried to cut MKV video file by following command in Linux mint 16.

  ffmpeg -i input.mkv -vcodec copy -acodec copy -ss 00:39:05 -t 00:03:03 out.mkv

  output :

  ffmpeg version 0.8.10-6:0.8.10-0ubuntu0.13.10.1, Copyright (c) 2000-2013 the Libav developers
  
    built on Feb  6 2014 20:53:28 with gcc 4.8.1
  
  *** THIS PROGRAM IS DEPRECATED ***
  
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  
  [matroska,webm @ 0x1774be0] max_analyze_duration reached
  
  [matroska,webm @ 0x1774be0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, matroska,webm, from 'input.mkv':
  
    Duration: 00:58:35.63, start: 0.000000, bitrate: N/A
  
      Stream #0.0(eng): Video: h264 (High), yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn, 50 tbc (default)
  
      Stream #0.1(eng): Audio: aac, 48000 Hz, stereo, s16 (default)
  
      Stream #0.2(eng): Subtitle: [0][0][0][0] / 0x0000
  
  Output #0, matroska, to 'out2.mkv':
  
      Stream #0.0(eng): Video: [0][0][0][0] / 0x0000, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 90k tbn, 25 tbc (default)
  
      Stream #0.1(eng): Audio: aac, 48000 Hz, stereo (default)
  
      Stream #0.2(eng): Subtitle: ass, 200 kb/s
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #0.1 -> #0.1
  
    Stream #0.2 -> #0.2
  
  Decoder (codec id 94210) not found for input stream #0.2

  It shows an error. I tried changing options but still can not cut the file.
  Is there simplest way to cut mkv file on Linux ?

• How to convert Lagarith .avi videos to MP4 using WinFF

  24 avril 2014, par Moein

  I have a bunch of .avi videos encoded with Lagarith codec. We would like to convert them in to a lossless .MP4 format so that they could be easily played on html. I want to keep video specifications remain the same if it’s possible and just convert the video to MP4.

  I tried WinFF and also some manually written FFmpeg codes [without any specific reference to the Lagarith codec] but they all create a video which is not playable (neither with Windows Player nor with the HTML5 player). Also, FFmpeg returns exceptions like bellow.

  Edit :
  Here is the FFmpeg code generated by WinFF, this code gives me the following Exception :

  "C:\Program Files\WinFF\ffmpeg.exe" -y -i "C:\Desktop\Videos\input.avi" -f mp4 -r 29.97 -vcodec libx264 -preset slow -vf scale=640:480 -b:v 1000k -aspect 4:3 -flags +loop -cmp chroma -b:v 1250k -maxrate 1500k -bufsize 4M -bt 256k -refs 1 -bf 3 -coder 1 -me_method umh -me_range 16 -subq 7 -partitions +parti4x4+parti8x8+partp8x8+partb8x8 -g 250 -keyint_min 25 -level 30 -qmin 10 -qmax 51 -qcomp 0.6 -trellis 2 -sc_threshold 40 -i_qfactor 0.71 -acodec libvo_aacenc -b:a 112k -ar 48000 -ac 2 "C:\Desktop\Videos\output.mp4"

  ---

  

  2nd Edit :
  Here is the entire exception that I receive :

      C:\Users\Desktop\Videos>"c:\Program Files\ffmpeg\bin\ffmpeg.exe" -y -i 300
  
  4_KDSmall-08_02_2013-11_43_34_415.avi -crf 26 -vcodec libx264 -pix_fmt yuv420p -
  
  acodec libvo_aacenc -ac 1 -ar 16000 -b:a 32000 3004_KDSmall-08_02_2013-11_43_34_
  
  415.mp4
  
  ffmpeg version N-62439-g5e379cd Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Apr 13 2014 22:08:47 with gcc 4.8.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
  
  e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
  
  ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
  
  ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
  
  eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
  
  cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
  
  ack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable
  
  -zlib
  
    libavutil      52. 76.100 / 52. 76.100
  
    libavcodec     55. 58.103 / 55. 58.103
  
    libavformat    55. 37.100 / 55. 37.100
  
    libavdevice    55. 13.100 / 55. 13.100
  
    libavfilter     4.  4.100 /  4.  4.100
  
    libswscale      2.  6.100 /  2.  6.100
  
    libswresample   0. 18.100 /  0. 18.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, avi, from '3004_KDSmall-08_02_2013-11_43_34_415.avi':
  
    Duration: 00:15:00.00, start: 0.000000, bitrate: 328 kb/s
  
      Stream #0:0: Video: lagarith (LAGS / 0x5347414C), rgb24, 320x244, 326 kb/s,
  
  7.50 tbr, 7.50 tbn, 7.50 tbc
  
  Codec AVOption b (set bitrate (in bits/s)) specified for output file #0 (3004_KD
  
  Small-08_02_2013-11_43_34_415.mp4) has not been used for any stream. The most li
  
  kely reason is either wrong type (e.g. a video option with no video streams) or
  
  that it is a private option of some encoder which was not actually used for any
  
  stream.
  
  [libx264 @ 0000000004288320] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  AVX
  
  [libx264 @ 0000000004288320] profile High, level 1.2
  
  [libx264 @ 0000000004288320] 264 - core 142 r2409 d6b4e63 - H.264/MPEG-4 AVC cod
  
  ec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 r
  
  ef=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed
  
  _ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pski
  
  p=1 chroma_qp_offset=-2 threads=12 lookahead_threads=1 sliced_threads=0 nr=0 dec
  
  imate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b
  
  _adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=
  
  7 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=26.0 qcomp=0.6
  
  0 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to '3004_KDSmall-08_02_2013-11_43_34_415.mp4':
  
    Metadata:
  
      encoder         : Lavf55.37.100
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 320x24
  
  4, q=-1--1, 15360 tbn, 7.50 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (lagarith -> libx264)
  
  Press [q] to stop, [?] for help
  
  frame= 1024 fps=0.0 q=27.0 size=      17kB time=00:02:08.80 bitrate=   1.1kbits/
  
  frame= 1947 fps=1943 q=27.0 size=     234kB time=00:04:11.86 bitrate=   7.6kbits
  
  frame= 2695 fps=1794 q=27.0 size=     659kB time=00:05:51.60 bitrate=  15.4kbits
  
  frame= 3971 fps=1983 q=27.0 size=     680kB time=00:08:41.73 bitrate=  10.7kbits
  
  frame= 5256 fps=2101 q=27.0 size=     702kB time=00:11:33.06 bitrate=   8.3kbits
  
  frame= 6074 fps=2023 q=27.0 size=    1018kB time=00:13:22.13 bitrate=  10.4kbits
  
  frame= 6343 fps=1810 q=27.0 size=    1625kB time=00:13:58.00 bitrate=  15.9kbits
  
  frame= 6588 fps=1644 q=27.0 size=    2247kB time=00:14:30.66 bitrate=  21.1kbits
  
  [lagarith @ 0000000004378fc0] Unsupported Lagarith frame type: 0x24
  
  [lagarith @ 00000000043796c0] Unsupported Lagarith frame type: 0x38
  
  [lagarith @ 000000000437a700] Unsupported Lagarith frame type: 0x4c
  
  [lagarith @ 000000000437d740] Unsupported Lagarith frame type: 0x60
  
  [lagarith @ 000000000437e760] Unsupported Lagarith frame type: 0x74
  
  [lagarith @ 0000000007fcb800] Unsupported Lagarith frame type: 0x88
  
  [lagarith @ 0000000007fcc820] Unsupported Lagarith frame type: 0x9c
  
  [lagarith @ 0000000007fd0860] Unsupported Lagarith frame type: 0xb0
  
  Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
  
  
  
  [lagarith @ 0000000007fd0ce0] Unsupported Lagarith frame type: 0xc4
  
  Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
  
  
  
  [lagarith @ 0000000004378fc0] Unsupported Lagarith frame type: 0xd8
  
  Error while decoding stream #0:0: Not yet implemented in FFmpeg, patches welcome
  
  
  
  [lagarith @ 00000000043796c0] Unsupported Lagarith frame type: 0xec
  
  frame= 6750 fps=1524 q=-1.0 Lsize=    2881kB time=00:14:59.73 bitrate=  26.2kbit
  
  s/s
  
  video:2802kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
  
  overhead: 2.842291%
  
  [libx264 @ 0000000004288320] frame I:29    Avg QP: 8.05  size:  2113
  
  [libx264 @ 0000000004288320] frame P:1874  Avg QP:11.85  size:   799
  
  [libx264 @ 0000000004288320] frame B:4847  Avg QP:13.60  size:   270
  
  [libx264 @ 0000000004288320] consecutive B-frames:  1.3%  6.0%  8.6% 84.1%
  
  [libx264 @ 0000000004288320] mb I  I16..4: 82.8%  4.8% 12.4%
  
  [libx264 @ 0000000004288320] mb P  I16..4:  0.2%  0.2%  0.3%  P16..4:  5.5%  4.9
  
  %  5.0%  0.0%  0.0%    skip:84.0%
  
  [libx264 @ 0000000004288320] mb B  I16..4:  0.0%  0.0%  0.1%  B16..8:  2.9%  2.2
  
  %  1.4%  direct: 0.7%  skip:92.7%  L0:55.4% L1:38.8% BI: 5.8%
  
  [libx264 @ 0000000004288320] 8x8 transform intra:13.7% inter:12.4%
  
  [libx264 @ 0000000004288320] coded y,uvDC,uvAC intra: 21.9% 42.5% 34.9% inter: 2
  
  .7% 5.4% 4.8%
  
  [libx264 @ 0000000004288320] i16 v,h,dc,p: 81%  9%  8%  2%
  
  [libx264 @ 0000000004288320] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 14% 49%  2%  3%
  
   4%  3%  2%  2%
  
  [libx264 @ 0000000004288320] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 14% 34%  4%  4%
  
   5%  4%  4%  3%
  
  [libx264 @ 0000000004288320] i8c dc,h,v,p: 72% 12% 12%  4%
  
  [libx264 @ 0000000004288320] Weighted P-Frames: Y:0.1% UV:0.1%
  
  [libx264 @ 0000000004288320] ref P L0: 42.5%  5.1% 29.3% 23.0%
  
  [libx264 @ 0000000004288320] ref B L0: 52.8% 37.8%  9.5%
  
  [libx264 @ 0000000004288320] ref B L1: 82.3% 17.7%
  
  [libx264 @ 0000000004288320] kb/s:25.50

  Any body could help me easily doing this conversion ?

• FFmpeg Libraries : How Do I Convert a Video to 4 Level Grayscale Video at 160x100 Pixels and as Raw Data

  15 avril 2014, par pimathbrainiac

  This seems like an odd question, so I am going to start from the beginning :

  I am a calculator programmer, specifically a Ti-89 programmer, and I'm trying to make a video player for it. I have the code for the calculator side done already, but I need to be able to convert video to a specific format that works as follows :

  Each frame is 4 level grayscale, where there are 2 bytes for every 8 horizontal pixels, a "back," or dark byte, and a "front," or light byte. Basically, every frame is 2 monochrome binary images, with the first byte of the first one is followed by the first byte of the second one, so data is stored as follows :

  FB(front buffer)[1],BB(back buffer)[1],FB[2],BB[2], etc...

  Here's how the display works : (defining 0 as white and 3 as black, with 1 and 2 being in-between shades)
  Each front buffer bit is worth 1, so if the front buffer were displayed with nothing in the back buffer, the "1" (or true) bits would show up as light gray pixels. These are then added to the back buffer bits, which are worth 2 (so if the back buffer were displayed with nothing in the front buffer, the "1" (or true) bits would show up as dark gray pixels) to get :

  "0" bit on either buffer = white pixel (0+0=0)

  "1" bit on front buffer but not back buffer = light gray pixel (1+0=1)

  "1" bit on back buffer but not front buffer = dark gray pixel (0+2=2)

  "1" bit on both buffers = black pixel (1+2=3)

  I have this down calculator-side, but I need to know : 1) How to convert the video to a specific framerate using the libs 2) How to convert these frames to 4-level grayscale at 160x100 pixels and 3) How to save these frames as raw data in the format I described. Thank you in advance for your answer(s).