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• Encoding a readable movie by QuickTime using FFMPEG

  29 juillet 2018, par itamarb

  I’m trying to encode an image sequence using the following command :

  ffmpeg.exe -i %d.png -f mp4 -vcodec h264 test.mp4

  However, QuickTime failed to open this file or sometimes play a black movie, while this movie plays great in VLC player. Any suggestions how to make it play well in QuickTime ?

  Here is the output :

  ffmpeg.exe -i %d.png -f mp4 -vcodec libx264 13.mp4
  
  ffmpeg version N-49044-g89afa63 Copyright (c) 2000-2013 the FFmpeg developers
  
    built on Jan 19 2013 20:36:06 with gcc 4.7.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
  
  isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
  
  le-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libg
  
  sm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --e
  
  nable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --e
  
  nable-libspeex --enable-libtheora --enable-libtwolame --enable-libvo-aacenc --en
  
  able-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable
  
  -libxavs --enable-libxvid --enable-zlib --enable-filter=frei0r
  
    libavutil      52. 15.100 / 52. 15.100
  
    libavcodec     54. 89.100 / 54. 89.100
  
    libavformat    54. 61.101 / 54. 61.101
  
    libavdevice    54.  3.102 / 54.  3.102
  
    libavfilter     3. 32.101 /  3. 32.101
  
    libswscale      2.  2.100 /  2.  2.100
  
    libswresample   0. 17.102 /  0. 17.102
  
    libpostproc    52.  2.100 / 52.  2.100
  
  [image2 @ 0221b940] max_analyze_duration 5000000 reached at 5000000 microseconds
  
  
  
  Input #0, image2, from '%d.png':
  
    Duration: 00:01:19.36, start: 0.000000, bitrate: N/A
  
      Stream #0:0: Video: png, rgb24, 639x480, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  [libx264 @ 0221edc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE
  
  4.2 AVX
  
  [libx264 @ 0221edc0] profile High 4:4:4 Predictive, level 3.0, 4:4:4 8-bit
  
  [libx264 @ 0221edc0] 264 - core 129 r2230 1cffe9f - H.264/MPEG-4 AVC codec - Cop
  
  yleft 2003-2012 - 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=4 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 in
  
  terlaced=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 scenecu
  
  t=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 '13.mp4':
  
    Metadata:
  
      encoder         : Lavf54.61.101
  
      Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv444p, 639x480, q=-1--1
  
  , 12800 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (png -> libx264)
  
  Press [q] to stop, [?] for help
  
  frame=   76 fps=0.0 q=28.0 size=       3kB time=00:00:00.96 bitrate=  22.3kbits/
  
  frame=  156 fps=155 q=28.0 size=       7kB time=00:00:04.16 bitrate=  14.7kbits/
  
  frame=  219 fps=145 q=28.0 size=      12kB time=00:00:06.68 bitrate=  14.1kbits/
  
  frame=  283 fps=141 q=28.0 size=      16kB time=00:00:09.24 bitrate=  14.2kbits/
  
  frame=  352 fps=140 q=28.0 size=      25kB time=00:00:12.00 bitrate=  17.4kbits/

• Can't play MP4 after download

  14 août 2018, par joe

  I am using a downloader program in Firefox to download videos playing in Firefox. Most of the time final MP4 is playable. But sometimes I get MP4 file that looks good(shows file size) but shows no length of video in file explorer.

  I get this error log.

  Could not get information from media 'ESPN 2 (HD) Live Stream Channel' from file 'C:\Download\dwHelper\ESPN 2 (HD) Live Stream Channel.mp4'. The file might be corrupted.
  
  
  
  {
  
      "file": "C:\\Download\\dwHelper\\ESPN 2 (HD) Live Stream Channel.mp4",
  
      "stat": {
  
          "dev": 3831878042,
  
          "mode": 33206,
  
          "nlink": 1,
  
          "uid": 0,
  
          "gid": 0,
  
          "rdev": 0,
  
          "ino": 9007199254752056,
  
          "size": 610722524,
  
          "atimeMs": 1534241605017.09,
  
          "mtimeMs": 1534241604156.685,
  
          "ctimeMs": 1534241604426.08,
  
          "birthtimeMs": 1534237675494.6475,
  
          "atime": "2018-08-14T10:13:25.017Z",
  
          "mtime": "2018-08-14T10:13:24.157Z",
  
          "ctime": "2018-08-14T10:13:24.426Z",
  
          "birthtime": "2018-08-14T09:07:55.495Z"
  
      }
  
  }
  
  Exit code: 1
  
  ffprobe version n4.0-1-gdc49a24-vdhcoapp Copyright (c) 2007-2018 the FFmpeg developers

  built with gcc 5.3.1 (GCC) 20160211

  configuration : —cross-prefix=x86_64-w64-mingw32- —sysroot=/usr/x86_64-w64-mingw32/ —extra-ldflags=-static-libgcc —target-os=mingw32 —arch=x86_64 —prefix=/home/mig/vdhcoapp/converter/src-build/win/64/converter-build —extra-version=vdhcoapp —extra-cflags=-I/home/mig/vdhcoapp/converter/src-build/win/64/deps/include —extra-ldflags=’-static-libgcc -L/home/mig/vdhcoapp/converter/src-build/win/64/deps/lib -L/home/mig/vdhcoapp/converter/src-build/win/64/zlib’ —extra-libs=-lpthread —pkg-config=/usr/bin/x86_64-w64-mingw32-pkg-config —enable-shared —enable-gpl —enable-pthreads —disable-w32threads —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libtheora —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libx265 —enable-libxvid —enable-libx264 —enable-avresample —disable-doc

  libavutil 56. 14.100 / 56. 14.100

  libavcodec 58. 18.100 / 58. 18.100

  libavformat 58. 12.100 / 58. 12.100

  libavdevice 58. 3.100 / 58. 3.100

  libavfilter 7. 16.100 / 7. 16.100

  libavresample 4. 0. 0 / 4. 0. 0

  libswscale 5. 1.100 / 5. 1.100

  libswresample 3. 1.100 / 3. 1.100

  libpostproc 55. 1.100 / 55. 1.100

  [mov,mp4,m4a,3gp,3g2,mj2 @ 00000000024c3900] moov atom not found

  C :\Download\dwHelper\ESPN 2 (HD) Live Stream Channel.mp4 : Invalid data found when processing input

  It looks like moov atom is missing thus can’t aggregate PART file into final playable MP4.

  I understand that during download, PART file is created. Then later PART is aggregated into final MP4.

  So question is how can I make this MP4 to play ?
  or is it impossible to play cus moov atom was not properly downloaded ?

  Any thoughts ?
  Thanks

• download youtube video as audio file, with URL in filename, to a specific output directory

  9 octobre 2018, par thanks_in_advance

  I do this to download a video as an audio file (mp3), with the video’s youtube URL (URI actually) in the audio file’s filename (I like having the URI in the filename because it helps me identify which video I grabbed the audio from) :

  youtube-dl --extract-audio --audio-format mp3 --prefer-ffmpeg --ffmpeg-location "C:\FFMPEG" "https://www.youtube.com/watch?v=k1-TrAvp_xs" --audio-quality 0

  The con with this approach : with this command, the file downloads to the same directory that contains youtube-dl.exe

  ---

  I do this to download a youtube video as an audio file (mp3) to a specific output directory :

  youtube-dl -o "C:\Documents\Downloads\%(title)s.%(ext)s" --extract-audio --audio-format mp3 --prefer-ffmpeg --ffmpeg-location "C:\FFMPEG" "https://www.youtube.com/watch?v=k1-TrAvp_xs" --audio-quality 0

  The con with this approach : with this command, the downloaded audio file’s filename doesn’t contain the youtube video’s URI.

  ---

  My Question : How can I combine the above 2 commands such that the downloaded audio file doesn’t have either of the cons mentioned above ?