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  • ffmpeg conversion .dav to any video files

    2 février 2021, 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


    


  • RTP packets detected as UDP

    8 juillet 2024, par fritz

    Here is what I am trying to do :

    



    WebRTC endpoint > RTP Endpoint > ffmpeg > RTMP server.


    



    This is what my SDP file looks like.

    



    var cm_offer = "v=0\n" +
              "o=- 3641290734 3641290734 IN IP4 127.0.0.1\n" +
              "s=nginx\n" +
              "c=IN IP4 127.0.0.1\n" +
              "t=0 0\n" +
              "m=audio 60820 RTP/AVP 0\n" +
              "a=rtpmap:0 PCMU/8000\n" +
              "a=recvonly\n" +
              "m=video 59618 RTP/AVP 101\n" +
              "a=rtpmap:101 H264/90000\n" +
              "a=recvonly\n";


    



    What's happening is that wireshark can detect the incoming packets at port 59618, but not as RTP packets but UDP packets. I am trying to capture the packets using ffmpeg with the following command :

    



    ubuntu@ip-132-31-40-100:~$ ffmpeg -i udp://127.0.0.1:59618 -vcodec copy stream.mp4
ffmpeg version git-2017-01-22-f1214ad Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --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-libfreetype --enable-gnutls --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-libvidstab --enable-libwavpack --enable-nvenc
  libavutil      55. 44.100 / 55. 44.100
  libavcodec     57. 75.100 / 57. 75.100
  libavformat    57. 63.100 / 57. 63.100
  libavdevice    57.  2.100 / 57.  2.100
  libavfilter     6. 69.100 /  6. 69.100
  libavresample   3.  2.  0 /  3.  2.  0
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100 


    



    All I get is a blinking cursor and The stream.mp4 file is not written to disk after I exit (ctrl+c).

    



    So can you help me figure out :

    



      

    1. why wireshark cannot detect the packets as RTP (I suspect it has something to do with SDP)

      2. 


    2. How to handle SDP answer when the RTP endpoint is pushing to ffmpeg which doesn't send an answer back.

      3. 


    



    Here is the entire code (hello world tutorial modified)

    



    /*
     * (C) Copyright 2014-2015 Kurento (http://kurento.org/)
     *
     * Licensed under the Apache License, Version 2.0 (the "License");
     * you may not use this file except in compliance with the License.
     * You may obtain a copy of the License at
     *
     *   http://www.apache.org/licenses/LICENSE-2.0
     *
     * Unless required by applicable law or agreed to in writing, software
     * distributed under the License is distributed on an "AS IS" BASIS,
     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     * See the License for the specific language governing permissions and
     * limitations under the License.
     */

    function getopts(args, opts)
    {
      var result = opts.default || {};
      args.replace(
          new RegExp("([^?=&]+)(=([^&]*))?", "g"),
          function($0, $1, $2, $3) { result[$1] = decodeURI($3); });

      return result;
    };

    var args = getopts(location.search,
    {
      default:
      {
        ws_uri: 'wss://' + location.hostname + ':8433/kurento',
        ice_servers: undefined
      }
    });

    function setIceCandidateCallbacks(webRtcPeer, webRtcEp, onerror)
    {
      webRtcPeer.on('icecandidate', function(candidate) {
        console.log("Local candidate:",candidate);

        candidate = kurentoClient.getComplexType('IceCandidate')(candidate);

        webRtcEp.addIceCandidate(candidate, onerror)
      });

      webRtcEp.on('OnIceCandidate', function(event) {
        var candidate = event.candidate;

        console.log("Remote candidate:",candidate);

        webRtcPeer.addIceCandidate(candidate, onerror);
      });
    }


    function setIceCandidateCallbacks2(webRtcPeer, rtpEp, onerror)
    {
      webRtcPeer.on('icecandidate', function(candidate) {
        console.log("Localr candidate:",candidate);

        candidate = kurentoClient.getComplexType('IceCandidate')(candidate);

        rtpEp.addIceCandidate(candidate, onerror)
      });
    }


    window.addEventListener('load', function()
    {
      console = new Console();

      var webRtcPeer;
      var pipeline;
      var webRtcEpt;

      var videoInput = document.getElementById('videoInput');
      var videoOutput = document.getElementById('videoOutput');

      var startButton = document.getElementById("start");
      var stopButton = document.getElementById("stop");

      startButton.addEventListener("click", function()
      {
        showSpinner(videoInput, videoOutput);

        var options = {
          localVideo: videoInput,
          remoteVideo: videoOutput
        };


        if (args.ice_servers) {
         console.log("Use ICE servers: " + args.ice_servers);
         options.configuration = {
           iceServers : JSON.parse(args.ice_servers)
         };
        } else {
         console.log("Use freeice")
        }

        webRtcPeer = kurentoUtils.WebRtcPeer.WebRtcPeerSendrecv(options, function(error)
        {
          if(error) return onError(error)

          this.generateOffer(onOffer)
        });

        function onOffer(error, sdpOffer)
        {
          if(error) return onError(error)

          kurentoClient(args.ws_uri, function(error, client)
          {
            if(error) return onError(error);

            client.create("MediaPipeline", function(error, _pipeline)
            {
              if(error) return onError(error);

              pipeline = _pipeline;

              pipeline.create("WebRtcEndpoint", function(error, webRtc){
                if(error) return onError(error);

                webRtcEpt = webRtc;

                setIceCandidateCallbacks(webRtcPeer, webRtc, onError)

                webRtc.processOffer(sdpOffer, function(error, sdpAnswer){
                  if(error) return onError(error);

                  webRtcPeer.processAnswer(sdpAnswer, onError);
                });
                webRtc.gatherCandidates(onError);

                webRtc.connect(webRtc, function(error){
                  if(error) return onError(error);

                  console.log("Loopback established");
                });
              });



            pipeline.create("RtpEndpoint", function(error, rtp){
                if(error) return onError(error);

                //setIceCandidateCallbacks2(webRtcPeer, rtp, onError)


                var cm_offer = "v=0\n" +
                      "o=- 3641290734 3641290734 IN IP4 127.0.0.1\n" +
                      "s=nginx\n" +
                      "c=IN IP4 127.0.0.1\n" +
                      "t=0 0\n" +
                      "m=audio 60820 RTP/AVP 0\n" +
                      "a=rtpmap:0 PCMU/8000\n" +
                      "a=recvonly\n" +
                      "m=video 59618 RTP/AVP 101\n" +
                      "a=rtpmap:101 H264/90000\n" +
                      "a=recvonly\n";



                rtp.processOffer(cm_offer, function(error, cm_sdpAnswer){
                  if(error) return onError(error);

                  //webRtcPeer.processAnswer(cm_sdpAnswer, onError);
                });
                //rtp.gatherCandidates(onError);

                webRtcEpt.connect(rtp, function(error){
                  if(error) return onError(error);

                  console.log("RTP endpoint connected to webRTC");
                });
              });









            });
          });
        }
      });
      stopButton.addEventListener("click", stop);


      function stop() {
        if (webRtcPeer) {
          webRtcPeer.dispose();
          webRtcPeer = null;
        }

        if(pipeline){
          pipeline.release();
          pipeline = null;
        }

        hideSpinner(videoInput, videoOutput);
      }

      function onError(error) {
        if(error)
        {
          console.error(error);
          stop();
        }
      }
    })


    function showSpinner() {
      for (var i = 0; i < arguments.length; i++) {
        arguments[i].poster = 'img/transparent-1px.png';
        arguments[i].style.background = "center transparent url('img/spinner.gif') no-repeat";
      }
    }

    function hideSpinner() {
      for (var i = 0; i < arguments.length; i++) {
        arguments[i].src = '';
        arguments[i].poster = 'img/webrtc.png';
        arguments[i].style.background = '';
      }
    }

    /**
     * Lightbox utility (to display media pipeline image in a modal dialog)
     */
    $(document).delegate('*[data-toggle="lightbox"]', 'click', function(event) {
      event.preventDefault();
      $(this).ekkoLightbox();
    });


    


  • OpenCV VideoWriter using ffmpeg with "Could not open codec 'libx264'" Error

    19 avril, par user2262504

    I am new to OpenCV, and I want write Mat images into video using VideoWriter on Ubuntu 12.04. But when constructing VideoWriter, errors came out.

    



    It seems that OpenCV invoke ffmpeg API using default parameters and ffmpeg invoke x264 using its default parameters. Then these setting is broken for libx264. Thus the "Could not open codec 'libx264'" error.

    



    Anyone has ideas to solve this problem ?

    



    More specifically :

    



      

    1. anyone knows where and how OpenCV invoke ffmpeg API ?

      2. 


    2. how to change ffmpeg default settings using code, hopefull, can be easily embeded into OpenCV ?

      3. 


    3. will changes of default in ffmpeg be carried to libx264 ?

      4. 


    



    Errors :

    



    1. Uising CV_FOURCC(&#x27;H&#x27;, &#x27;2&#x27;, &#x27;6&#x27;, &#x27;4&#x27;)&#xA;[libx264 @ 0x255de40] broken ffmpeg default settings detected&#xA;[libx264 @ 0x255de40] use an encoding preset (e.g. -vpre medium)&#xA;[libx264 @ 0x255de40] preset usage: -vpre <speed> -vpre <profile>&#xA;[libx264 @ 0x255de40] speed presets are listed in x264 --help&#xA;[libx264 @ 0x255de40] profile is optional; x264 defaults to high&#xA;Could not open codec &#x27;libx264&#x27;: Unspecified error&#xA;&#xA;2. Using FOURCC = -1 to invoke user customized codec&#xA;OpenCV Error: Unsupported format or combination of formats (Gstreamer Opencv &#xA;backend doesn&#x27;t support this codec acutally.) in CvVideoWriter_GStreamer::open, &#xA;file /home/XXX/Downloads/opencv-2.4.8/modules/highgui/src/cap_gstreamer.cpp, &#xA;line 505 terminate called after throwing an instance of &#x27;cv::Exception&#x27;&#xA;what():  /home/XXX/Downloads/opencv-2.4.8/modules/highgui/src/cap_gstreamer.cpp:&#xA;505: error: (-210) Gstreamer Opencv backend doesn&#x27;t support this codec acutally.&#xA;in function CvVideoWriter_GStreamer::open&#xA;</profile></speed>

    &#xA;&#xA;

    Codes :

    &#xA;&#xA;

    int main(int argc, char *argv[])&#xA;{&#xA;    VideoWriter outputVideo;&#xA;    bool fourcc_on = true; //switch on / off different error&#xA;    if (fourcc_on)&#xA;        outputVideo.open("outVideo.avi", CV_FOURCC(&#x27;H&#x27;, &#x27;2&#x27;, &#x27;6&#x27;, &#x27;4&#x27;), 25, Size(100, 100), true);&#xA;    else&#xA;        outputVideo.open("outVideo.avi", -1, 25, Size(100, 100), true);&#xA;&#xA;    if (!outputVideo.isOpened())&#xA;    {&#xA;        cout  &lt;&lt; "Could not open the output video for write" &lt;&lt; endl;&#xA;        return -1;&#xA;    }&#xA;    return 0;&#xA;}&#xA;

    &#xA;&#xA;

    OpenCV Configuration :

    &#xA;&#xA;

    -- Detected version of GNU GCC: 46 (406)&#xA;-- Found OpenEXR: /usr/lib/libIlmImf.so&#xA;-- Looking for linux/videodev.h&#xA;-- Looking for linux/videodev.h - not found&#xA;-- Looking for linux/videodev2.h&#xA;-- Looking for linux/videodev2.h - found&#xA;-- Looking for sys/videoio.h&#xA;-- Looking for sys/videoio.h - not found&#xA;-- Looking for libavformat/avformat.h&#xA;-- Looking for libavformat/avformat.h - found&#xA;-- Looking for ffmpeg/avformat.h&#xA;-- Looking for ffmpeg/avformat.h - not found&#xA;-- Could NOT find JNI (missing:  JAVA_INCLUDE_PATH JAVA_INCLUDE_PATH2 JAVA_AWT_INCLUDE_PATH) &#xA;-- &#xA;-- General configuration for OpenCV 2.4.8 =====================================&#xA;--   Version control:               unknown&#xA;-- &#xA;--   Platform:&#xA;--     Host:                        Linux 3.8.0-38-generic x86_64&#xA;--     CMake:                       2.8.7&#xA;--     CMake generator:             Unix Makefiles&#xA;--     CMake build tool:            /usr/bin/make&#xA;--     Configuration:               RELEASE&#xA;-- &#xA;--   C/C&#x2B;&#x2B;:&#xA;--     Built as dynamic libs?:      YES&#xA;--     C&#x2B;&#x2B; Compiler:                /usr/bin/c&#x2B;&#x2B;  (ver 4.6)&#xA;--     C&#x2B;&#x2B; flags (Release):         -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -O3 -DNDEBUG  -DNDEBUG&#xA;--     C&#x2B;&#x2B; flags (Debug):           -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -g  -O0 -DDEBUG -D_DEBUG&#xA;--     C Compiler:                  /usr/bin/gcc&#xA;--     C flags (Release):           -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -O3 -DNDEBUG  -DNDEBUG&#xA;--     C flags (Debug):             -fsigned-char -W -Wall -Werror=return-type -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -fdiagnostics-show-option -Wno-long-long -pthread -fomit-frame-pointer -msse -msse2 -msse3 -ffunction-sections -g  -O0 -DDEBUG -D_DEBUG&#xA;--     Linker flags (Release):      &#xA;--     Linker flags (Debug):        &#xA;--     Precompiled headers:         YES&#xA;-- &#xA;--   OpenCV modules:&#xA;--     To be built:                 core flann imgproc highgui features2d calib3d ml video legacy objdetect photo gpu ocl nonfree contrib python stitching superres ts videostab&#xA;--     Disabled:                    world&#xA;--     Disabled by dependency:      -&#xA;--     Unavailable:                 androidcamera dynamicuda java&#xA;-- &#xA;--   GUI: &#xA;--     QT:                          NO&#xA;--     GTK&#x2B; 2.x:                    YES (ver 2.24.10)&#xA;--     GThread :                    YES (ver 2.32.4)&#xA;--     GtkGlExt:                    NO&#xA;--     OpenGL support:              NO&#xA;-- &#xA;--   Media I/O: &#xA;--     ZLib:                        /usr/lib/x86_64-linux-gnu/libz.so (ver 1.2.3.4)&#xA;--     JPEG:                        /usr/lib/x86_64-linux-gnu/libjpeg.so (ver )&#xA;--     PNG:                         /usr/lib/x86_64-linux-gnu/libpng.so (ver 1.2.46)&#xA;--     TIFF:                        /usr/lib/x86_64-linux-gnu/libtiff.so (ver 42 - 3.9.5)&#xA;--     JPEG 2000:                   /usr/lib/x86_64-linux-gnu/libjasper.so (ver 1.900.1)&#xA;--     OpenEXR:                     /usr/lib/libImath.so /usr/lib/libIlmImf.so /usr/lib/libIex.so /usr/lib/libHalf.so /usr/lib/libIlmThread.so (ver 1.6.1)&#xA;-- &#xA;--   Video I/O:&#xA;--     DC1394 1.x:                  NO&#xA;--     DC1394 2.x:                  YES (ver 2.2.0)&#xA;--     FFMPEG:                      YES&#xA;--       codec:                     YES (ver 55.58.105)&#xA;--       format:                    YES (ver 55.37.101)&#xA;--       util:                      YES (ver 52.78.100)&#xA;--       swscale:                   YES (ver 2.6.100)&#xA;--       gentoo-style:              YES&#xA;--     GStreamer:                   &#xA;--       base:                      YES (ver 0.10.36)&#xA;--       app:                       YES (ver 0.10.36)&#xA;--       video:                     YES (ver 0.10.36)&#xA;--     OpenNI:                      NO&#xA;--     OpenNI PrimeSensor Modules:  NO&#xA;--     PvAPI:                       NO&#xA;--     GigEVisionSDK:               NO&#xA;--     UniCap:                      NO&#xA;--     UniCap ucil:                 NO&#xA;--     V4L/V4L2:                    Using libv4l (ver 1.0.1)&#xA;--     XIMEA:                       NO&#xA;--     Xine:                        NO&#xA;-- &#xA;--   Other third-party libraries:&#xA;--     Use IPP:                     NO&#xA;--     Use Eigen:                   NO&#xA;--     Use TBB:                     NO&#xA;--     Use OpenMP:                  NO&#xA;--     Use GCD                      NO&#xA;--     Use Concurrency              NO&#xA;--     Use C=:                      NO&#xA;--     Use Cuda:                    NO&#xA;--     Use OpenCL:                  YES&#xA;-- &#xA;--   OpenCL:&#xA;--     Version:                     dynamic&#xA;--     Include path:                /home/shixudongleo/Downloads/opencv-2.4.8/3rdparty/include/opencl/1.2&#xA;--     Use AMD FFT:                 NO&#xA;--     Use AMD BLAS:                NO&#xA;-- &#xA;--   Python:&#xA;--     Interpreter:                 /usr/bin/python (ver 2.7.3)&#xA;--     Libraries:                   /usr/lib/libpython2.7.so&#xA;--     numpy:                       /usr/lib/python2.7/dist-packages/numpy/core/include (ver 1.6.1)&#xA;--     packages path:               lib/python2.7/dist-packages&#xA;-- &#xA;--   Java:&#xA;--     ant:                         NO&#xA;--     JNI:                         NO&#xA;--     Java tests:                  NO&#xA;-- &#xA;--   Documentation:&#xA;--     Build Documentation:         NO&#xA;--     Sphinx:                      NO&#xA;--     PdfLaTeX compiler:           /usr/bin/pdflatex&#xA;-- &#xA;--   Tests and samples:&#xA;--     Tests:                       YES&#xA;--     Performance tests:           YES&#xA;--     C/C&#x2B;&#x2B; Examples:              NO&#xA;-- &#xA;--   Install path:                  /usr/local&#xA;-- &#xA;--   cvconfig.h is in:              /home/shixudongleo/Downloads/opencv-2.4.8/build&#xA;-- -----------------------------------------------------------------&#xA;-- &#xA;-- Configuring done&#xA;-- Generating done&#xA;-- Build files have been written to: /home/XXX/Downloads/opencv-2.4.8/build&#xA;

    &#xA;&#xA;

    FFMPEG

    &#xA;&#xA;

    ffmpeg is enable to support OpenCV and libx264 is enabled when compiling ffmpeg.&#xA;By using ffmpeg command line, libx264 is running normally.

    &#xA;&#xA;

    $ ffmpeg -i test.avi -vcodec libx264 test.mp4&#xA;ffmpeg -i test.avi -vcodec libx264 test.mp4 > ~/Downloads/ffmpeg_log.txt&#xA;ffmpeg version 2.2.git Copyright (c) 2000-2014 the FFmpeg developers&#xA;  built on Apr 24 2014 16:39:51 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)&#xA;  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid --enable-nonfree --enable-postproc --enable-version3 --enable-x11grab --enable-shared --enable-pic&#xA;  libavutil      52. 78.100 / 52. 78.100&#xA;  libavcodec     55. 58.105 / 55. 58.105&#xA;  libavformat    55. 37.101 / 55. 37.101&#xA;  libavdevice    55. 13.100 / 55. 13.100&#xA;  libavfilter     4.  4.100 /  4.  4.100&#xA;  libswscale      2.  6.100 /  2.  6.100&#xA;  libswresample   0. 18.100 /  0. 18.100&#xA;  libpostproc    52.  3.100 / 52.  3.100&#xA;Input #0, avi, from &#x27;test.avi&#x27;:&#xA;  Duration: 00:00:03.73, start: 0.000000, bitrate: 1757 kb/s&#xA;    Stream #0:0: Video: msvideo1 (CRAM / 0x4D415243), rgb555le, 320x240, 1781 kb/s, 15 tbr, 15 tbn, 15 tbc&#xA;    Metadata:&#xA;      title           : julius.avi Video #1&#xA;File &#x27;test.mp4&#x27; already exists. Overwrite ? [y/N] y&#xA;No pixel format specified, yuv444p for H.264 encoding chosen.&#xA;Use -pix_fmt yuv420p for compatibility with outdated media players.&#xA;[libx264 @ 0x25d08e0] using cpu capabilities: none!&#xA;[libx264 @ 0x25d08e0] profile High 4:4:4 Predictive, level 1.2, 4:4:4 8-bit&#xA;[libx264 @ 0x25d08e0] 264 - core 142 - 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=4 threads=12 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=15 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&#xA;Output #0, mp4, to &#x27;test.mp4&#x27;:&#xA;  Metadata:&#xA;    encoder         : Lavf55.37.101&#xA;    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p, 320x240, q=-1--1, 15360 tbn, 15 tbc&#xA;    Metadata:&#xA;      title           : julius.avi Video #1&#xA;Stream mapping:&#xA;  Stream #0:0 -> #0:0 (msvideo1 -> libx264)&#xA;Press [q] to stop, [?] for help&#xA;frame=   56 fps=0.0 q=-1.0 Lsize=     321kB time=00:00:03.60 bitrate= 731.0kbits/s    &#xA;video:320kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.409949%&#xA;[libx264 @ 0x25d08e0] frame I:3     Avg QP:15.36  size:  7975&#xA;[libx264 @ 0x25d08e0] frame P:38    Avg QP:26.05  size:  6230&#xA;[libx264 @ 0x25d08e0] frame B:15    Avg QP:28.25  size:  4418&#xA;[libx264 @ 0x25d08e0] consecutive B-frames: 46.4% 53.6%  0.0%  0.0%&#xA;[libx264 @ 0x25d08e0] mb I  I16..4:  1.4% 72.8% 25.8%&#xA;[libx264 @ 0x25d08e0] mb P  I16..4:  1.6%  5.7% 15.1%  P16..4:  7.6%  6.3%  7.4%  0.0%  0.0%    skip:56.3%&#xA;[libx264 @ 0x25d08e0] mb B  I16..4:  0.2%  1.0%  2.0%  B16..8: 13.3%  7.8%  8.7%  direct: 8.3%  skip:58.8%  L0:34.9% L1:36.6% BI:28.5%&#xA;[libx264 @ 0x25d08e0] 8x8 transform intra:37.7% inter:2.3%&#xA;[libx264 @ 0x25d08e0] coded y,u,v intra: 52.1% 42.1% 30.1% inter: 19.6% 9.2% 5.2%&#xA;[libx264 @ 0x25d08e0] i16 v,h,dc,p: 56% 17% 24%  2%&#xA;[libx264 @ 0x25d08e0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 16% 68%  1%  1%  1%  1%  1%  1%&#xA;[libx264 @ 0x25d08e0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 18% 28%  5%  6%  5%  7%  5%  6%&#xA;[libx264 @ 0x25d08e0] Weighted P-Frames: Y:31.6% UV:21.1%&#xA;[libx264 @ 0x25d08e0] ref P L0: 70.5%  9.0% 12.1%  6.5%  2.0%&#xA;[libx264 @ 0x25d08e0] ref B L0: 91.3%  8.7%&#xA;[libx264 @ 0x25d08e0] kb/s:700.56&#xA;

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