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• ffmpeg conversion .dav to any video files

  22 février 2017, par Marcello Galvão

  I am trying for days to convert .dav file (file generated by dvrs [image recorders]). I have tried several variations with ffmpeg and can not succeed.

  Command and console output :

  $ ffmpeg -i input.dav -codec:v libx264 -crf 23 -preset medium -codec:a libfdk_aac -vbr 4 -movflags faststart -vf scale=-1:720,format=yuv420p output.mp4
  
  ffmpeg version 2.8 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
  
    configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libdcadec --enable-libfreetype --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvo-aacenc --enable-libvidstab
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Input #0, h264, from 'input.Dav':
  
    Duration: N/A, bitrate: N/A
  
      Stream #0:0: Video: h264 (Baseline), yuv420p, 704x480, 25 fps, 25 tbr, 1200k tbn, 50 tbc
  
  Codec AVOption vbr (VBR mode (1-5)) specified for output file #0 (output.mp4) has not been used for any stream. The most likely 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 @ 0x2d99e00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  [libx264 @ 0x2d99e00] profile High, level 3.1
  
  [libx264 @ 0x2d99e00] 264 - core 142 r2491 24e4fed - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=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_pskip=1 chroma_qp_offset=-2 threads=3 lookahead_threads=1 sliced_threads=0 nr=0 decimate=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=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      encoder         : Lavf56.40.101
  
      Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1056x720, q=-1--1, 25 fps, 12800 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc56.60.100 libx264
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  frame=   58 fps=0.0 q=28.0 size=      93kB time=00:00:00.36 bitrate=2124.9kbits/s    
  
  frame=   76 fps= 71 q=28.0 size=     178kB time=00:00:01.08 bitrate=1347.6kbits/s    
  
  frame=   94 fps= 58 q=28.0 size=     275kB time=00:00:01.80 bitrate=1251.3kbits/s    
  
  frame=  106 fps= 50 q=28.0 size=     393kB time=00:00:02.28 bitrate=1412.9kbits/s    
  
  frame=  122 fps= 46 q=28.0 size=     504kB time=00:00:02.92 bitrate=1413.9kbits/s    
  
  frame=  138 fps= 43 q=28.0 size=     586kB time=00:00:03.56 bitrate=1348.4kbits/s    
  
  frame=  153 fps= 41 q=28.0 size=     676kB time=00:00:04.16 bitrate=1330.4kbits/s    
  
  [h264 @ 0x3348440] Frame num change from 35 to 162
  
  [h264 @ 0x3348440] decode_slice_header error
  
  frame=  166 fps= 39 q=28.0 size=     785kB time=00:00:04.68 bitrate=1374.8kbits/s    
  
  frame=  179 fps= 38 q=28.0 size=     894kB time=00:00:05.20 bitrate=1407.9kbits/s    
  
  frame=  191 fps= 36 q=28.0 size=    1010kB time=00:00:05.68 bitrate=1457.0kbits/s    
  
  frame=  206 fps= 36 q=28.0 size=    1137kB time=00:00:06.28 bitrate=1482.7kbits/s    
  
  frame=  222 fps= 35 q=28.0 size=    1229kB time=00:00:06.92 bitrate=1455.2kbits/s    
  
  frame=  239 fps= 35 q=28.0 size=    1327kB time=00:00:07.60 bitrate=1430.8kbits/s    
  
  frame=  258 fps= 35 q=28.0 size=    1409kB time=00:00:08.36 bitrate=1380.4kbits/s    
  
  frame=  273 fps= 35 q=28.0 size=    1496kB time=00:00:08.96 bitrate=1367.5kbits/s    
  
  frame=  288 fps= 34 q=28.0 size=    1599kB time=00:00:09.56 bitrate=1370.3kbits/s    
  
  frame=  301 fps= 34 q=28.0 size=    1730kB time=00:00:10.08 bitrate=1405.7kbits/s    
  
  frame=  318 fps= 34 q=28.0 size=    1807kB time=00:00:10.76 bitrate=1376.0kbits/s    
  
  frame=  336 fps= 34 q=28.0 size=    1873kB time=00:00:11.48 bitrate=1336.3kbits/s    
  
  frame=  358 fps= 34 q=28.0 size=    1938kB time=00:00:12.36 bitrate=1284.4kbits/s    
  
  frame=  378 fps= 34 q=28.0 size=    1995kB time=00:00:13.16 bitrate=1242.1kbits/s    
  
  frame=  398 fps= 35 q=28.0 size=    2053kB time=00:00:13.96 bitrate=1204.5kbits/s    
  
  frame=  415 fps= 35 q=28.0 size=    2115kB time=00:00:14.64 bitrate=1183.4kbits/s    
  
  frame=  434 fps= 35 q=28.0 size=    2165kB time=00:00:15.40 bitrate=1151.4kbits/s    
  
  frame=  454 fps= 35 q=28.0 size=    2220kB time=00:00:16.20 bitrate=1122.8kbits/s    
  
  frame=  470 fps= 35 q=28.0 size=    2279kB time=00:00:16.84 bitrate=1108.5kbits/s    
  
  frame=  489 fps= 35 q=28.0 size=    2350kB time=00:00:17.60 bitrate=1093.9kbits/s    
  
  frame=  505 fps= 35 q=28.0 size=    2410kB time=00:00:18.24 bitrate=1082.5kbits/s    
  
  frame=  515 fps= 34 q=28.0 size=    2534kB time=00:00:18.64 bitrate=1113.5kbits/s    
  
  frame=  531 fps= 34 q=28.0 size=    2668kB time=00:00:19.28 bitrate=1133.8kbits/s    
  
  frame=  547 fps= 34 q=28.0 size=    2782kB time=00:00:19.92 bitrate=1144.2kbits/s    
  
  frame=  565 fps= 34 q=28.0 size=    2925kB time=00:00:20.64 bitrate=1160.9kbits/s    
  
  frame=  581 fps= 34 q=28.0 size=    3043kB time=00:00:21.28 bitrate=1171.3kbits/s    
  
  frame=  595 fps= 34 q=28.0 size=    3136kB time=00:00:21.84 bitrate=1176.1kbits/s    
  
  frame=  611 fps= 34 q=28.0 size=    3240kB time=00:00:22.48 bitrate=1180.5kbits/s    
  
  frame=  630 fps= 34 q=28.0 size=    3351kB time=00:00:23.24 bitrate=1181.2kbits/s    
  
  frame=  651 fps= 34 q=28.0 size=    3451kB time=00:00:24.08 bitrate=1174.1kbits/s    
  
  frame=  675 fps= 34 q=28.0 size=    3528kB time=00:00:25.04 bitrate=1154.2kbits/s    
  
  frame=  700 fps= 35 q=28.0 size=    3612kB time=00:00:26.04 bitrate=1136.2kbits/s    
  
  frame=  724 fps= 35 q=28.0 size=    3701kB time=00:00:27.00 bitrate=1122.9kbits/s    
  
  frame=  747 fps= 35 q=28.0 size=    3808kB time=00:00:27.92 bitrate=1117.4kbits/s    
  
  frame=  768 fps= 35 q=28.0 size=    3884kB time=00:00:28.76 bitrate=1106.4kbits/s    
  
  frame=  799 fps= 36 q=28.0 size=    3983kB time=00:00:30.00 bitrate=1087.6kbits/s    
  
  frame=  834 fps= 36 q=28.0 size=    4052kB time=00:00:31.40 bitrate=1057.1kbits/s    
  
  frame=  868 fps= 37 q=28.0 size=    4097kB time=00:00:32.76 bitrate=1024.5kbits/s    
  
  frame=  894 fps= 37 q=28.0 size=    4141kB time=00:00:33.80 bitrate=1003.6kbits/s    
  
  frame=  914 fps= 37 q=28.0 size=    4234kB time=00:00:34.60 bitrate=1002.5kbits/s    
  
  frame=  933 fps= 37 q=28.0 size=    4363kB time=00:00:35.36 bitrate=1010.8kbits/s    
  
  frame=  954 fps= 37 q=28.0 size=    4442kB time=00:00:36.20 bitrate=1005.3kbits/s    
  
  frame=  976 fps= 37 q=28.0 size=    4510kB time=00:00:37.08 bitrate= 996.3kbits/s    
  
  frame=  994 fps= 37 q=28.0 size=    4579kB time=00:00:37.80 bitrate= 992.3kbits/s    
  
  frame= 1010 fps= 37 q=28.0 size=    4663kB time=00:00:38.44 bitrate= 993.7kbits/s    
  
  frame= 1030 fps= 37 q=28.0 size=    4734kB time=00:00:39.24 bitrate= 988.3kbits/s    
  
  frame= 1043 fps= 37 q=28.0 size=    4843kB time=00:00:39.76 bitrate= 997.9kbits/s    
  
  frame= 1065 fps= 37 q=28.0 size=    5021kB time=00:00:40.64 bitrate=1012.1kbits/s    
  
  frame= 1092 fps= 38 q=28.0 size=    5052kB time=00:00:41.72 bitrate= 991.9kbits/s    
  
  frame= 1118 fps= 38 q=28.0 size=    5129kB time=00:00:42.76 bitrate= 982.6kbits/s    
  
  frame= 1145 fps= 38 q=28.0 size=    5185kB time=00:00:43.84 bitrate= 968.8kbits/s    
  
  frame= 1174 fps= 38 q=28.0 size=    5214kB time=00:00:45.00 bitrate= 949.1kbits/s    
  
  frame= 1202 fps= 39 q=28.0 size=    5256kB time=00:00:46.12 bitrate= 933.7kbits/s    
  
  frame= 1220 fps= 39 q=28.0 size=    5341kB time=00:00:46.84 bitrate= 934.1kbits/s    
  
  frame= 1236 fps= 38 q=28.0 size=    5432kB time=00:00:47.48 bitrate= 937.2kbits/s    
  
  [h264 @ 0x2d68ca0] A non-intra slice in an IDR NAL unit.
  
  [h264 @ 0x2d68ca0] decode_slice_header error
  
  frame= 1252 fps= 38 q=28.0 size=    5552kB time=00:00:48.12 bitrate= 945.2kbits/s    
  
  frame= 1269 fps= 38 q=28.0 size=    5666kB time=00:00:48.80 bitrate= 951.2kbits/s    
  
  frame= 1286 fps= 38 q=28.0 size=    5773kB time=00:00:49.48 bitrate= 955.7kbits/s    
  
  frame= 1302 fps= 38 q=28.0 size=    5908kB time=00:00:50.12 bitrate= 965.7kbits/s    
  
  frame= 1324 fps= 38 q=28.0 size=    6011kB time=00:00:51.00 bitrate= 965.6kbits/s    
  
  frame= 1349 fps= 38 q=28.0 size=    6103kB time=00:00:52.00 bitrate= 961.4kbits/s    
  
  frame= 1373 fps= 38 q=28.0 size=    6200kB time=00:00:52.96 bitrate= 959.1kbits/s    
  
  frame= 1399 fps= 39 q=28.0 size=    6284kB time=00:00:54.00 bitrate= 953.3kbits/s    
  
  frame= 1424 fps= 39 q=28.0 size=    6388kB time=00:00:55.00 bitrate= 951.5kbits/s    
  
  frame= 1447 fps= 39 q=28.0 size=    6492kB time=00:00:55.92 bitrate= 951.1kbits/s    
  
  frame= 1476 fps= 39 q=28.0 size=    6530kB time=00:00:57.08 bitrate= 937.2kbits/s    
  
  frame= 1503 fps= 39 q=28.0 size=    6580kB time=00:00:58.16 bitrate= 926.8kbits/s    
  
  frame= 1518 fps= 39 q=28.0 size=    6709kB time=00:00:58.76 bitrate= 935.4kbits/s    
  
  frame= 1542 fps= 39 q=28.0 size=    6835kB time=00:00:59.72 bitrate= 937.6kbits/s    
  
  [h264 @ 0x3348440] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
  
  [h264 @ 0x3348440] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)
  
  frame= 1568 fps= 39 q=28.0 size=    6958kB time=00:01:00.76 bitrate= 938.1kbits/s    
  
  frame= 1596 fps= 39 q=28.0 size=    7006kB time=00:01:01.88 bitrate= 927.5kbits/s    
  
  frame= 1619 fps= 39 q=28.0 size=    7096kB time=00:01:02.80 bitrate= 925.6kbits/s    
  
  frame= 1646 fps= 40 q=28.0 size=    7152kB time=00:01:03.88 bitrate= 917.2kbits/s    
  
  frame= 1671 fps= 40 q=28.0 size=    7205kB time=00:01:04.88 bitrate= 909.8kbits/s    
  
  frame= 1698 fps= 40 q=28.0 size=    7268kB time=00:01:05.96 bitrate= 902.7kbits/s    
  
  frame= 1725 fps= 40 q=28.0 size=    7328kB time=00:01:07.04 bitrate= 895.5kbits/s    
  
  frame= 1752 fps= 40 q=28.0 size=    7382kB time=00:01:08.12 bitrate= 887.7kbits/s    
  
  frame= 1779 fps= 40 q=28.0 size=    7433kB time=00:01:09.20 bitrate= 879.9kbits/s    
  
  frame= 1803 fps= 40 q=28.0 size=    7580kB time=00:01:10.16 bitrate= 885.1kbits/s    
  
  frame= 1827 fps= 41 q=28.0 size=    7643kB time=00:01:11.12 bitrate= 880.4kbits/s    
  
  frame= 1852 fps= 41 q=28.0 size=    7703kB time=00:01:12.12 bitrate= 875.0kbits/s    
  
  frame= 1879 fps= 41 q=28.0 size=    7751kB time=00:01:13.20 bitrate= 867.4kbits/s    
  
  frame= 1899 fps= 41 q=28.0 size=    7840kB time=00:01:14.00 bitrate= 867.9kbits/s    
  
  frame= 1918 fps= 41 q=28.0 size=    7946kB time=00:01:14.76 bitrate= 870.7kbits/s    
  
  frame= 1938 fps= 41 q=28.0 size=    8046kB time=00:01:15.56 bitrate= 872.3kbits/s    
  
  frame= 1959 fps= 41 q=28.0 size=    8134kB time=00:01:16.40 bitrate= 872.1kbits/s    
  
  frame= 1978 fps= 41 q=28.0 size=    8227kB time=00:01:17.16 bitrate= 873.5kbits/s    
  
  frame= 1997 fps= 41 q=28.0 size=    8322kB time=00:01:17.92 bitrate= 874.9kbits/s    
  
  frame= 2022 fps= 41 q=28.0 size=    8390kB time=00:01:18.92 bitrate= 870.9kbits/s    
  
  [h264 @ 0x2d64180] concealing 1320 DC, 1320 AC, 1320 MV errors in I frame
  
  [mp4 @ 0x2cdb900] Starting second pass: moving the moov atom to the beginning of the file
  
  frame= 2041 fps= 40 q=-1.0 Lsize=    8657kB time=00:01:21.56 bitrate= 869.5kbits/s    
  
  video:8633kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.275387%
  
  [libx264 @ 0x2d99e00] frame I:9     Avg QP:18.32  size: 48212
  
  [libx264 @ 0x2d99e00] frame P:698   Avg QP:22.05  size:  9056
  
  [libx264 @ 0x2d99e00] frame B:1334  Avg QP:27.18  size:  1562
  
  [libx264 @ 0x2d99e00] consecutive B-frames: 10.6%  5.0%  5.4% 79.0%
  
  [libx264 @ 0x2d99e00] mb I  I16..4: 18.4% 57.3% 24.2%
  
  [libx264 @ 0x2d99e00] mb P  I16..4:  5.3%  8.2%  1.0%  P16..4: 26.3%  9.1%  4.0%  0.0%  0.0%    skip:46.0%
  
  [libx264 @ 0x2d99e00] mb B  I16..4:  0.2%  0.1%  0.0%  B16..8: 20.6%  1.8%  0.3%  direct: 0.8%  skip:76.2%  L0:38.8% L1:57.6% BI: 3.6%
  
  [libx264 @ 0x2d99e00] 8x8 transform intra:56.1% inter:75.9%
  
  [libx264 @ 0x2d99e00] coded y,uvDC,uvAC intra: 35.0% 44.9% 12.4% inter: 6.5% 8.1% 0.2%
  
  [libx264 @ 0x2d99e00] i16 v,h,dc,p: 34% 40%  3% 22%
  
  [libx264 @ 0x2d99e00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 36% 26% 16%  3%  4%  4%  5%  4%  4%
  
  [libx264 @ 0x2d99e00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 41% 10%  2%  4%  4%  5%  3%  3%
  
  [libx264 @ 0x2d99e00] i8c dc,h,v,p: 47% 24% 24%  5%
  
  [libx264 @ 0x2d99e00] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 0x2d99e00] ref P L0: 72.8% 10.0% 13.7%  3.5%
  
  [libx264 @ 0x2d99e00] ref B L0: 90.8%  7.9%  1.2%
  
  [libx264 @ 0x2d99e00] ref B L1: 96.5%  3.5%
  
  [libx264 @ 0x2d99e00] kb/s:866.17

• ffmpeg not converting entire file

  9 février 2015, par Yay295

  I’m trying to convert a .tak file to .flac, but ffmpeg stops converting before the end (with no error message).

  >ffmpeg -i CDImage.tak CDImage.flac
  
  ffmpeg version N-69659-gc0367f7 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.9.2 (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-libbs2b --enable-libcaca --
  
  enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
  
  modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
  
  b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
  
  r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
  
  able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
  
   --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
  
  libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enab
  
  le-zlib
  
    libavutil      54. 18.100 / 54. 18.100
  
    libavcodec     56. 21.102 / 56. 21.102
  
    libavformat    56. 19.100 / 56. 19.100
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5.  9.104 /  5.  9.104
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  1.100 /  1.  1.100
  
    libpostproc    53.  3.100 / 53.  3.100
  
  Guessed Channel Layout for  Input Stream #0.0 : stereo
  
  Input #0, tak, from 'CDImage.tak':
  
    Duration: 00:17:35.95, start: 0.000000, bitrate: 1013 kb/s
  
      Stream #0:0: Audio: tak, 44100 Hz, 2 channels, s16p
  
  Output #0, flac, to 'CDImage.flac':
  
    Metadata:
  
      encoder         : Lavf56.19.100
  
      Stream #0:0: Audio: flac, 44100 Hz, stereo, s16, 128 kb/s
  
      Metadata:
  
        encoder         : Lavc56.21.102 flac
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (tak (native) -> flac (native))
  
  Press [q] to stop, [?] for help
  
  size=   83540kB time=00:10:54.19 bitrate=1046.1kbits/s
  
  video:0kB audio:83532kB subtitle:0kB other streams:0kB global headers:0kB muxing
  
   overhead: 0.009689%

  As you can see, the input file is 17:35.95, but ffmpeg is only converting 10:54.19 of it. Does anyone know what’s going on here ?

  edit : I tried it with a different tak file and got the same result. Only 27 minutes of a 50 minute tak was converted to flac. I get the exact same output file times when converting to wav, so I’m guessing it must either be something with the tak files I have, or with ffmpeg’s tak decoder.

• ffmpeg using exec() output must be realtime

  5 janvier 2015, par gadss

  Hi I am suing windows and linux OS and I am using php for uploading videos, using ffmpeg I can convert videos to other file type. in commandline I can convert and thru php code, but I have problem in displaying the output executed data in my php, it cannot be done in echo this is my code. :

  $webm = 'ffmpeg -i c:\xampp\htdocs\vidcon\video.mp4 -acodec libvorbis -aq 5 -ac 2 -qmax 25 -threads 2 c:\xampp\htdocs\vidcon\new\myvideo.webm';
  
      echo exec ($webm); 

  but when I run it, it doesn’t have any display.. what I want to display is like this... something like a progress in converting the video displaying in php...

  ffmpeg version N-68810-g75cc57f Copyright (c) 2000-2014 the FFmpeg developers
 built on Jan  1 2015 22:02:35 with gcc 4.9.2 (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-libbs2b --enable-libcaca --
enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
libx265 --enable-libxavs --enable-libxvid --enable-lzma --enable-decklink --enab
le-zlib
 libavutil      54. 15.100 / 54. 15.100
 libavcodec     56. 19.100 / 56. 19.100
 libavformat    56. 16.102 / 56. 16.102
 libavdevice    56.  3.100 / 56.  3.100
 libavfilter     5.  6.100 /  5.  6.100
 libswscale      3.  1.101 /  3.  1.101
 libswresample   1.  1.100 /  1.  1.100
 libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'c:\xampp\htdocs\vidcon\video.mp4':
 Metadata:
   major_brand     : mp42
   minor_version   : 0
   compatible_brands: mp42mp41isomavc1
   creation_time   : 2014-03-04 20:25:21
 Duration: 00:02:33.09, start: 0.000000, bitrate: 2661 kb/s
   Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709)
, 1280x720 [SAR 1:1 DAR 16:9], 2499 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 t
bc (default)
   Metadata:
     creation_time   : 2014-03-04 20:25:21
     handler_name    : L-SMASH Video Handler
     encoder         : AVC Coding
   Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, flt
p, 160 kb/s (default)
   Metadata:
     creation_time   : 2014-03-04 20:25:21
     handler_name    : L-SMASH Audio Handler
[libvpx @ 0292c560] v1.3.0
Output #0, webm, to 'c:\xampp\htdocs\vidcon\new\myvideo2.webm':
 Metadata:
   major_brand     : mp42
   minor_version   : 0
   compatible_brands: mp42mp41isomavc1
   encoder         : Lavf56.16.102
   Stream #0:0(und): Video: vp8 (libvpx), yuv420p, 1280x720 [SAR 1:1 DAR 16:9],
q=-1-25, 200 kb/s, 29.97 fps, 1k tbn, 29.97 tbc (default)
   Metadata:
     creation_time   : 2014-03-04 20:25:21
     handler_name    : L-SMASH Video Handler
     encoder         : Lavc56.19.100 libvpx
   Stream #0:1(und): Audio: vorbis (libvorbis), 48000 Hz, stereo, fltp (default
)
   Metadata:
     creation_time   : 2014-03-04 20:25:21
     handler_name    : L-SMASH Audio Handler
     encoder         : Lavc56.19.100 libvorbis
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> vp8 (libvpx))
 Stream #0:1 -> #0:1 (aac (native) -> vorbis (libvorbis))
Press [q] to stop, [?] for help
frame=   12 fps=0.0 q=0.0 size=       5kB time=00:00:00.40 bitrate=  97.1kbits/s
frame=   22 fps= 21 q=0.0 size=       5kB time=00:00:00.73 bitrate=  52.9kbits/s
frame=   31 fps= 19 q=0.0 size=     153kB time=00:00:01.03 bitrate=1213.8kbits/s
frame=   41 fps= 19 q=0.0 size=     153kB time=00:00:01.36 bitrate= 917.5kbits/s

  does anyone had an idea about my case ? thanks in advance...