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  • FFMPEG- Streaming Stops after few seconds

    25 mars 2019, par Manjot Singh Kalsi

    Hi there dear community

    This is the thing that I am dealing with, since last few days. After thorough search in the ffmpeg community, I was unable to find the solution. I am unable to Stream local flv, to facebook rtmp server.

    I am running the following command to stream my local flv video to the rtmp server of Facebook for Live-Streaming of my local File.

    ```ffmpeg -re -i SampleM.flv -acodec libmp3lame  -ar 44100 -b:a 128k -pix_fmt yuv420p -profile:v baseline -s 426x240 -bufsize 6000k -vb 400k -maxrate 1500k -deinterlace -vcodec libx264 -preset veryfast -g 30 -r 30 -f flv "rtmp://live-api.facebook.com:80/rtmp/my_key"```

    It has been a misfortune-situation that even after reading ffmpeg documentation, I have been unable to find the issue that is leading me to this situation as follows.

    I am still missing something that i need to know.

    Following is the log to the execution of the above command.

    ```ffmpeg version N-91024-g293a6e8332 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 7.3.0 (GCC)
    
  configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
    
  libavutil      56. 18.100 / 56. 18.100
    
  libavcodec     58. 19.101 / 58. 19.101
    
  libavformat    58. 13.102 / 58. 13.102
    
  libavdevice    58.  4.100 / 58.  4.100
    
  libavfilter     7. 21.100 /  7. 21.100
    
  libswscale      5.  2.100 /  5.  2.100
    
  libswresample   3.  2.100 /  3.  2.100
    
  libpostproc    55.  2.100 / 55.  2.100
    
Input #0, flv, from '.\video.flv':
    
  Metadata:
    
    audiodelay      : 0
    
    canSeekToEnd    : 1
    
    creationdate    : Fri Feb 03 11:52:46 2006
    
                    :
    
  Duration: 00:00:16.92, start: 0.000000, bitrate: 316 kb/s
    
    Stream #0:0: Audio: mp3, 22050 Hz, stereo, fltp, 40 kb/s
    
    Stream #0:1: Video: vp6f, 1 reference frame, yuv420p, 360x288 (368x288), 266 kb/s, 25 fps, 25 tbr, 1k tbn
    
Stream mapping:
    
  Stream #0:1 -> #0:0 (vp6f (native) -> h264 (libx264))
    
  Stream #0:0 -> #0:1 (mp3 (mp3float) -> mp3 (libmp3lame))
    
Press [q] to stop, [?] for help
    
[graph_1_in_0_0 @ 0000020c0bcc4200] tb:1/22050 samplefmt:fltp samplerate:22050 chlayout:0x3
    
[format_out_0_1 @ 0000020c0bca2cc0] auto-inserting filter 'auto_resampler_0' between the filter 'Parsed_anull_0' and the filter 'format_out_0_1'
    
[auto_resampler_0 @ 0000020c0bca5140] ch:2 chl:stereo fmt:fltp r:22050Hz -> ch:2 chl:stereo fmt:fltp r:44100Hz
    
[graph 0 input from stream 0:1 @ 0000020c0c4f4600] w:360 h:288 pixfmt:yuv420p tb:1/1000 fr:25/1 sar:0/1 sws_param:flags=2
    
[scaler_out_0_0 @ 0000020c0c4f73c0] w:426 h:240 flags:'bicubic' interl:0
    
[scaler_out_0_0 @ 0000020c0c4f73c0] w:360 h:288 fmt:yuv420p sar:0/1 -> w:426 h:240 fmt:yuv420p sar:0/1 flags:0x4
    
[libx264 @ 0000020c0bc80600] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
    
[libx264 @ 0000020c0bc80600] profile Constrained Baseline, level 3.0
    
[libx264 @ 0000020c0bc80600] 264 - core 155 r2901 7d0ff22 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=2 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=7 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=30 keyint_min=3 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=abr mbtree=1 bitrate=400 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 vbv_maxrate=1500 vbv_bufsize=6000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00
    
Output #0, flv, to 'rtmp://live-api.facebook.com:80/rtmp/my key:
    
  Metadata:
    
    audiodelay      : 0
    
    canSeekToEnd    : 1
    
    creationdate    : Fri Feb 03 11:52:46 2006
    
                    :
    
    encoder         : Lavf58.13.102
    
    Stream #0:0: Video: h264 (libx264), 1 reference frame ([7][0][0][0] / 0x0007), yuv420p, 426x240, q=-1--1, 400 kb/s, 30 fps, 1k tbn, 30 tbc
    
    Metadata:
    
      encoder         : Lavc58.19.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 1500000/0/400000 buffer size: 6000000 vbv_delay: -1
    
    Stream #0:1: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz, stereo, fltp, delay 1105, 128 kb/s
    
    Metadata:
    
      encoder         : Lavc58.19.101 libmp3lame
    
No more output streams to write to, finishing.e=00:00:16.51 bitrate= 533.3kbits/s speed=0.992x
    
[flv @ 0000020c0bc97fc0] Failed to update header with correct duration.
    
[flv @ 0000020c0bc97fc0] Failed to update header with correct filesize.
    
frame=  424 fps= 25 q=-1.0 Lsize=    1153kB time=00:00:16.95 bitrate= 557.1kbits/s speed=0.997x
    
video:869kB audio:265kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.666647%
    
Input file #0 (.\video.flv):
    
  Input stream #0:0 (audio): 649 packets read (84767 bytes); 649 frames decoded (373824 samples);
    
  Input stream #0:1 (video): 424 packets read (566376 bytes); 424 frames decoded;
    
  Total: 1073 packets (651143 bytes) demuxed
    
Output file #0 (rtmp://live-api.facebook.com:80/rtmp/my key):
    
  Output stream #0:0 (video): 424 frames encoded; 424 packets muxed (889641 bytes);
    
  Output stream #0:1 (audio): 649 frames encoded (747648 samples); 650 packets muxed (271673 bytes);
    
  Total: 1074 packets (1161314 bytes) muxed
    
[libx264 @ 0000020c0bc80600] frame I:18    Avg QP:27.75  size:  7001
    
[libx264 @ 0000020c0bc80600] frame P:406   Avg QP:32.67  size:  1879
    
[libx264 @ 0000020c0bc80600] mb I  I16..4: 39.3%  0.0% 60.7%
    
[libx264 @ 0000020c0bc80600] mb P  I16..4:  8.3%  0.0%  2.3%  P16..4: 42.2% 16.2%  4.4%  0.0%  0.0%    skip:26.6%
    
[libx264 @ 0000020c0bc80600] final ratefactor: 28.61
    
[libx264 @ 0000020c0bc80600] coded y,uvDC,uvAC intra: 40.2% 33.7% 9.2% inter: 23.8% 7.5% 0.2%
    
[libx264 @ 0000020c0bc80600] i16 v,h,dc,p: 24% 50% 20%  6%
    
[libx264 @ 0000020c0bc80600] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 13% 34% 18%  5%  5%  4%  8%  4%  8%
    
[libx264 @ 0000020c0bc80600] i8c dc,h,v,p: 67% 24%  7%  2%
    
[libx264 @ 0000020c0bc80600] kb/s:418.33```

    This Image shows that The stream was alive few Few Seconds on Facebook

    ```[flv @ 0000020c0bc97fc0] Failed to update header with correct duration.
    
[flv @ 0000020c0bc97fc0] Failed to update header with correct filesize.```

    Please correct me, the above error listed in the log, seems to be the main cause that the video stops streaming after few seconds. I’ve checked for the latency issues, But they won’t help anyway.

    Please Help me to tackle this issue. I’ll be very much thankful. :’)

    Streaming ends even earlier, when I use Google compute engine, instead my own PC as streaming service.

  • Build Opencv3.1 with ffmpeg

    10 mai 2018, par batuman

    I tried to build Opencv3.1 at Ubuntu16.04 with ffmpeg.
    I follow the instructions how to install ffmpeg at here.

    According to this discussion ,I checked.

    >> mediainfo ~/Desktop/grb_2.mp4 
    
General
    
Complete name                            : /home/nyan/Desktop/grb_2.mp4
    
Format                                   : MPEG-4
    
Format profile                           : Base Media
    
Codec ID                                 : isom (isom/iso2/avc1/mp41)
    
File size                                : 445 KiB
    
Duration                                 : 27s 862ms
    
Overall bit rate                         : 131 Kbps
    
Encoded date                             : UTC 1904-01-01 00:00:00
    
Tagged date                              : UTC 1904-01-01 00:00:00
    
Writing application                      : Lavf57.66.105
    

    
Video
    
ID                                       : 1
    
Format                                   : AVC
    
Format/Info                              : Advanced Video Codec
    
Format profile                           : High@L3
    
Format settings, CABAC                   : Yes
    
Format settings, ReFrames                : 4 frames
    
Codec ID                                 : avc1
    
Codec ID/Info                            : Advanced Video Coding
    
Duration                                 : 27s 862ms
    
Bit rate                                 : 128 Kbps
    
Width                                    : 720 pixels
    
Height                                   : 480 pixels
    
Display aspect ratio                     : 4:3
    
Original display aspect ratio            : 4:3
    
Frame rate mode                          : Constant
    
Frame rate                               : 29.970 (30000/1001) fps
    
Standard                                 : NTSC
    
Color space                              : YUV
    
Chroma subsampling                       : 4:2:0
    
Bit depth                                : 8 bits
    
Scan type                                : Progressive
    
Bits/(Pixel*Frame)                       : 0.012
    
Stream size                              : 435 KiB (98%)
    
Writing library                          : x264 core 148
    
Encoding settings                        : 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=12 / lookahead_threads=2 / 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
    
Encoded date                             : UTC 1904-01-01 00:00:00
    
Tagged date                              : UTC 1904-01-01 00:00:00 
    

    

    

    

    

    
ffmpeg -codecs | grep -i avc
    
ffmpeg version N-90982-gb995ec0 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 20160609
    
  configuration: --prefix=/home/nyan/ffmpeg_build --enable-shared --extra-cflags=-I/home/nyan/ffmpeg_build/include --extra-ldflags=-L/home/nyan/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/nyan/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree
    
  libavutil      56. 18.100 / 56. 18.100
    
  libavcodec     58. 19.100 / 58. 19.100
    
  libavformat    58. 13.101 / 58. 13.101
    
  libavdevice    58.  4.100 / 58.  4.100
    
  libavfilter     7. 21.100 /  7. 21.100
    
  libswscale      5.  2.100 /  5.  2.100
    
  libswresample   3.  2.100 /  3.  2.100
    
  libpostproc    55.  2.100 / 55.  2.100
    
 DEV.LS h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders: h264 h264_v4l2m2m ) (encoders: libx264 libx264rgb h264_v4l2m2m h264_vaapi )
    
 D.A.L. avc                  On2 Audio for Video Codec (decoders: on2avc )

    So my ffmpeg installation is ok.

    When I cmake to my Opencv, I have set up to ffmpeg as

    enter image description here

    But when I make to compile, I have error as

    make[2]: *** No rule to make target '/home/nyan/ffmpeg_build/lib/libavresample.a', needed by 'lib/libopencv_videoio.so.3.1.0'.  Stop.
    
CMakeFiles/Makefile2:8709: recipe for target 'modules/videoio/CMakeFiles/opencv_videoio.dir/all' failed
    
make[1]: *** [modules/videoio/CMakeFiles/opencv_videoio.dir/all] Error 2
    
Makefile:160: recipe for target 'all' failed
    
make: *** [all] Error 2

    How can I fix the problem ?

    I install libavresample manually and

    sudo apt-get install libavresample-dev
    
[sudo] password for nyan: 
    
Reading package lists... Done
    
Building dependency tree       
    
Reading state information... Done
    
libavresample-dev is already the newest version (7:2.8.14-0ubuntu0.16.04.1).

    It is newest version.

    EDIT:

    Actually libavresample at ffmpeg is deprecated already.
    So I tried to install Opencv3.4.1 higher version.
    Compile, build and installation are fine.
    But VideoCapture cap(0); does not read from the device.
    So I checked ffmpeg at Opencv3.4.1 installation as

    python -c "import cv2; print(cv2.getBuildInformation())" | grep -i ffmpeg

    FFMMPEG IS NO. So build with ffmpeg is not successful even though there was no error at build for Opencv3.4.1.

  • youtube-dl sometime hangs with "[ffmpeg] Correcting container"

    20 mai 2018, par user292344

    Ubuntu 16.04

    /usr/local/bin/youtube-dl --version
    
2018.05.09

    I have a bash script that attemts to download a youtube video. The output is below. The problem is that sometimes it works perfectly (completes quickly).
    But most of the time it hangs on "Correcting container....". Does anyone know why ?

    + /usr/local/bin/youtube-dl --verbose -x 'https://www.youtube.com/watch?v=8HVWitAW-Qg'
    

    
[debug] System config: []
    

    
[debug] User config: []
    

    
[debug] Custom config: []
    

    
[debug] Command-line args: [u'--verbose', u'-x', u'https://www.youtube.com/watch?v=8HVWitAW-Qg']
    

    
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
    

    
[debug] youtube-dl version 2018.05.09
    

    
[debug] Python version 2.7.12 (CPython) - Linux-4.4.0-124-generic-x86_64-with-Ubuntu-16.04-xenial
    

    
[debug] exe versions: avconv 2.8.14-0ubuntu0.16.04.1, avprobe 2.8.14-0ubuntu0.16.04.1, ffmpeg 2.8.14-0ubuntu0.16.04.1, ffprobe 2.8.14-0ubuntu0.16.04.1, rtmpdump 2.4
    

    
[debug] Proxy map: {}
    

    
[youtube] 8HVWitAW-Qg: Downloading webpage
    

    
[youtube] 8HVWitAW-Qg: Downloading video info webpage
    

    
[youtube] 8HVWitAW-Qg: Extracting video information
    

    
[debug] Invoking downloader on u'https://r5---sn-5uaeznkl.googlevideo.com/videoplayback?expire=1526159728&source=youtube&key=yt6&mime=audio%2Fmp4&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cpl%2Crequiressl%2Csource%2Cusequic%2Cexpire&keepalive=yes&lmt=1518142590597815&dur=231.131&mv=m&mt=1526137933&ms=au%2Conr&signature=18BB34F3716B412AC5757872DD2AF402B6EE20D2.43D2E68B5A5ED2E2D3076DF9264B9BB723484821&ip=71.81.217.251&c=WEB&initcwndbps=1583750&mn=sn-5uaeznkl%2Csn-p5qs7n7l&clen=3671757&gir=yes&id=o-AOxj8Rg2IuZek8KwvgPy-N7_FSGzxQ0Zl2HX1T4gepLf&ipbits=0&fvip=5&ei=EAX3WqbOH8fg4QSlkrGoAg&pl=20&mm=31%2C26&itag=140&usequic=no&requiressl=yes&ratebypass=yes'
    

    
[download] Destination: Top 10 cute kitten videos compilation-8HVWitAW-Qg.m4a
    

    
[download] 100% of 3.50MiB in 00:00
    

    
[ffmpeg] Correcting container in "Top 10 cute kitten videos compilation-8HVWitAW-Qg.m4a"
    

    
[debug] ffmpeg command line: avconv -y -i 'file:Top 10 cute kitten videos compilation-8HVWitAW-Qg.m4a' -c copy -f mp4 'file:Top 10 cute kitten videos compilation-8HVWitAW-Qg.temp.m4a'
    

    
^C
    
ERROR: Interrupted by user

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