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• Syncronising Video/audio with two different sources

  22 mai 2016, par Indy

  I have an issue with an very old film that I’m trying to recover. I have two source of the same film.

  Source 1 (from ffmeg -i) :

  Duration: 02:43:35.77, start: 0.000000, bitrate: 1342 kb/s
  
  Stream #0:0: Video: mpeg4 (Simple Profile) (DIVX / 0x58564944), yuv420p, 720x480 [SAR 1:1 DAR 3:2], 1200 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 30k tbc
  
  Stream #0:1: Audio: mp3 (U[0][0][0] / 0x0055), 48000 Hz, stereo, s16p, 128 kb/s

  Source 2 (from ffmeg -i) :

  Duration: 02:46:11.04, start: 0.000000, bitrate: 1625 kb/s
  
  Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1200x720 [SAR 1:1 DAR 5:3], 1431 kb/s, 30 fps, 30 tbr, 30 tbn, 60 tbc (default)
  
  Metadata:
  
    handler_name    : VideoHandler
  
  Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 191 kb/s (default)
  
  Metadata:
  
    creation_time   : 2014-06-22 12:06:22
  
    handler_name    : IsoMedia File Produced by Google, 5-11-2011

  What I would like is to take the audio from source 1 and video from source 2 and create a new file with them.

  I have tried changing the source 1 to 30 fps and then using its audio with source 2’s video but the audio ’fps’ is really after sync after sometime. Perhaps my approach is wrong.

  what’s the best way to take the audio from source 1 synced with source 2’s video ?

  Any help is appreciated. Thanks,
  Indy

• How do I download a list mpd with ffmpeg

  13 mai 2016, par Don Donllei

  I did download the video from a site that used M3U8 but he moved to mpd and do not know how do I download it.

  <mpd type="static" minbuffertime="PT1S" mediapresentationduration="PT0H1M56.320S" profiles="urn:mpeg:dash:profile:full:2011"><programinformation moreinformationurl="http://gpac.sourceforge.net"></programinformation><period start="PT0S" duration="PT0H1M56.320S"><adaptationset segmentalignment="true" maxwidth="1920" maxheight="1080" maxframerate="25" par="16:9"><contentcomponent contenttype="video"></contentcomponent><contentcomponent contenttype="audio"></contentcomponent><segmenttemplate timescale="1000" duration="9693" media="$RepresentationID$/Y7aRjDxbh_$Number$.m4s" startnumber="1" initialization="$RepresentationID$/Y7aRjDxbh_init.mp4"></segmenttemplate><representation mimetype="video/mp4" codecs="avc3.64000d,mp4a.40.2" width="320" height="240" framerate="25" sar="4:3" audiosamplingrate="44100" startwithsap="1" bandwidth="400000">
  
      </representation><representation mimetype="video/mp4" codecs="avc3.64001e,mp4a.40.2" width="720" height="480" framerate="25" sar="32:27" audiosamplingrate="44100" startwithsap="1" bandwidth="900000">
  
    </representation><representation mimetype="video/mp4" codecs="avc3.64001f,mp4a.40.2" width="960" height="720" framerate="25" sar="4:3" audiosamplingrate="44100" startwithsap="1" bandwidth="1500000">
  
     </representation><representation mimetype="video/mp4" codecs="avc3.640028,mp4a.40.2" width="1920" height="1080" framerate="25" sar="1:1" audiosamplingrate="44100" startwithsap="1" bandwidth="3500000">
  
     </representation><representation mimetype="video/mp4" codecs="avc3.640028,mp4a.40.2" width="2730" height="1440" framerate="25" sar="1:1" audiosamplingrate="44100" startwithsap="1" bandwidth="10000000">
  
     </representation><representation mimetype="video/mp4" codecs="avc3.640028,mp4a.40.2" width="4096" height="2160" framerate="25" sar="1:1" audiosamplingrate="44100" startwithsap="1" bandwidth="20000000">
  
     </representation></adaptationset></period></mpd>

• Streaming to YouTube using FFmpeg Problems

  9 mai 2016, par jason

  I am trying to stream to a live event I have created inside of YouTube. I am trying to stream a already created video. The command I am using is noted below.

  The problem I have is that YouTube is showing the Streaming status as good (picture attached) and it seems to be receiving the data. But there is no sound and no picture in the live event. I’m not sure what the issue could be.

  ffmpeg -re -y -i input.mp4 -vcodec libx264 -b:v 600k -r 25 -s 640x360 -filter:v yadif -ab 64k -ac 1 -ar 44100 -f flv "rtmp://a.rtmp.youtube.com/live2/KEY"

  Image showing YouTube streaming status :

  

  Console output :

  ffmpeg version N-60321-g4d7d9a5 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Feb  2 2014 22:01:03 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-libxavs --enable-libxvid --enable-zlib
  
    libavutil      52. 63.100 / 52. 63.100
  
    libavcodec     55. 49.101 / 55. 49.101
  
    libavformat    55. 29.101 / 55. 29.101
  
    libavdevice    55.  7.100 / 55.  7.100
  
    libavfilter     4.  1.102 /  4.  1.102
  
    libswscale      2.  5.101 /  2.  5.101
  
    libswresample   0. 17.104 /  0. 17.104
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      creation_time   : 2013-10-24 05:44:23
  
    Duration: 00:41:52.93, start: 0.000000, bitrate: 187 kb/s
  
      Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yu
  
  v420p, 480x360, 89 kb/s, 15 fps, 15 tbr, 30 tbn, 30 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 96
  
   kb/s (default)
  
      Metadata:
  
        creation_time   : 2013-10-24 05:44:39
  
        handler_name    : IsoMedia File Produced by Google, 5-11-2011
  
  [libx264 @ 040fdc40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX AVX2
  
   FMA3 LZCNT BMI2
  
  [libx264 @ 040fdc40] profile High, level 3.0
  
  [libx264 @ 040fdc40] 264 - core 142 r2389 956c8d8 - H.264/MPEG-4 AVC codec - Cop
  
  yleft 2003-2014 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deb
  
  lock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 m
  
  e_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chro
  
  ma_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=75 keyint_min=38 scenec
  
  ut=0 intra_refresh=0 rc_lookahead=40 rc=abr mbtree=1 bitrate=1200 ratetol=1.0 qc
  
  omp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
  
  Output #0, flv, to 'rtmp://a.rtmp.youtube.com/live2/keyname':
  
    Metadata:
  
      major_brand     : mp42
  
      minor_version   : 0
  
      compatible_brands: isommp42
  
      encoder         : Lavf55.29.101
  
      Stream #0:0(und): Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 85
  
  4x480, q=-1--1, 1200 kb/s, 1k tbn, 25 tbc (default)
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 44100 Hz,
  
   mono, fltp, 64 kb/s (default)
  
      Metadata:
  
        creation_time   : 2013-10-24 05:44:39
  
        handler_name    : IsoMedia File Produced by Google, 5-11-2011
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (h264 -> libx264)
  
    Stream #0:1 -> #0:1 (aac -> libmp3lame)
  
  Press [q] to stop, [?] for help
  
  frame=    1 fps=0.0 q=0.0 size=       0kB time=00:00:00.39 bitrate=   9.2kbits/s
  
  ...
  
  frame=  463 fps=7.8 q=0.0 size=    1534kB time=00:00:31.66 bitrate= 396.8kbits/s
  
  [flv @ 040fd6e0] Failed to update header with correct duration.
  
  [flv @ 040fd6e0] Failed to update header with correct filesize.
  
  frame=  463 fps=6.8 q=-1.0 Lsize=    2055kB time=00:00:31.79 bitrate= 529.6kbits
  
  /s
  
  video:1778kB audio:249kB subtitle:0 data:0 global headers:0kB muxing overhead 1.
  
  405947%
  
  [libx264 @ 040fdc40] frame I:7     Avg QP: 2.24  size: 44703
  
  [libx264 @ 040fdc40] frame P:153   Avg QP: 0.65  size:  8418
  
  [libx264 @ 040fdc40] frame B:303   Avg QP: 5.74  size:   724
  
  [libx264 @ 040fdc40] consecutive B-frames: 11.9%  2.6%  0.0% 85.5%
  
  [libx264 @ 040fdc40] mb I  I16..4: 66.0% 12.4% 21.6%
  
  [libx264 @ 040fdc40] mb P  I16..4:  4.7%  0.8%  1.5%  P16..4:  6.6%  1.1%  1.1%
  
   0.0%  0.0%    skip:84.2%
  
  [libx264 @ 040fdc40] mb B  I16..4:  0.2%  0.0%  0.1%  B16..8:  3.0%  0.2%  0.1%
  
   direct: 0.6%  skip:95.8%  L0:47.7% L1:49.2% BI: 3.0%
  
  [libx264 @ 040fdc40] final ratefactor: -9.42
  
  [libx264 @ 040fdc40] 8x8 transform intra:11.8% inter:35.4%
  
  [libx264 @ 040fdc40] coded y,uvDC,uvAC intra: 33.7% 11.2% 11.1% inter: 2.6% 1.6%
  
   1.6%
  
  [libx264 @ 040fdc40] i16 v,h,dc,p: 13% 86%  0%  0%
  
  [libx264 @ 040fdc40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  9% 74% 11%  0%  1%  1%  1%
  
   1%  2%
  
  [libx264 @ 040fdc40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 61%  6%  1%  3%  2%  4%
  
   2%  4%
  
  [libx264 @ 040fdc40] i8c dc,h,v,p: 88% 10%  2%  0%
  
  [libx264 @ 040fdc40] Weighted P-Frames: Y:0.0% UV:0.0%
  
  [libx264 @ 040fdc40] ref P L0: 81.7%  9.4%  8.0%  0.9%
  
  [libx264 @ 040fdc40] ref B L0: 78.9% 20.9%  0.2%
  
  [libx264 @ 040fdc40] ref B L1: 99.1%  0.9%
  
  [libx264 @ 040fdc40] kb/s:471.59
  
  Received signal 2: terminating.

  Edit -

  I have now tested the following codes but I still dotn get any picture or sound.. but the health status in youtube still shows good

  I ran this command first

  ffmpeg -i input.mp4 -vcodec libx264 -preset medium -maxrate 3000k -bufsize 6000k -vf "scale=1280:-1,format=yuv420p" -g 50 -acodec libmp3lame -b:a 128k -ac 2 -ar 44100 file.flv

  and then I ran this

  ffmpeg -re -i file.flv -codec copy -f flv rtmp://a.rtmp.youtube.com/live2/<key>
  
  </key>

  I still didnt get any picture

  I also tried the full command in 1

  ffmpeg -re -i input.mp4 -vcodec libx264 -preset veryfast -maxrate 3000k -bufsize 6000k -pix_fmt yuv420p -g 50 -c:a aac -b:a 160k -ac 2 -ar 44100 -f flv rtmp://a.rtmp.youtube.com/live2/<key>  
  
  </key>

  still no joy