Recherche avancée

Sur d’autres sites (11509)

• FFMPEG doesn't convert from m4v files

  8 février 2014, par MattD

  I am trying to transcode an m4v file from iTunes so I can play it on Windows or XBox. I am running ffmpeg from Windows. Is there some -vcodec I need to specify or something I need to install ? Here's the command I'm running and the error I'm getting.

  Edit : Complete output

  ffmpeg version N-60393-g9707b53 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Feb  6 2014 22:07:13 with gcc 4.8.2 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
  
    libavutil      52. 63.101 / 52. 63.101
  
    libavcodec     55. 49.101 / 55. 49.101
  
    libavformat    55. 30.100 / 55. 30.100
  
    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
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] stream 0, timescale not set
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Stream #3: not enough frames to estimate rate; consider increasing probesize
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Stream #4: not enough frames to estimate rate; consider increasing probesize
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Could not find codec parameters for stream 1 (Video: none (drmi / 0x696D7264), 960x718, 3957 kb/s): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Could not find codec parameters for stream 2 (Audio: none (drms / 0x736D7264), 48000 Hz, 5.1(side), 384 kb/s): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 000000000268f620] Could not find codec parameters for stream 3 (Subtitle: none (p608 / 0x38303670), 1280x718, 0 kb/s): unknown codec
  
  Consider increasing the value for the 'analyzeduration' and 'probesize' options
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Y:02 The Empty Hearse (HD).m4v':
  
    Metadata:
  
      major_brand     : M4V 
  
      minor_version   : 0
  
      compatible_brands: M4V mp42isom
  
      creation_time   : 2014-01-13 18:51:33
  
      title           : [...]
  
      artist          : [...]
  
      album           : [...]
  
      genre           : Drama
  
      track           : 2/8
  
      disc            : 1/1
  
      date            : 2014-01-19T08:00:00Z
  
      description     : [...]
  
      hd_video        : 1
  
      network         : PBS
  
      show            : Sherlock
  
      episode_id      : 1
  
      season_number   : 3
  
      episode_sort    : 2
  
      media_type      : 10
  
      synopsis        : [...]
  
    Duration: 01:26:28.70, start: 0.000000, bitrate: 4505 kb/s
  
      Stream #0:0(eng): Audio: aac (drms / 0x736D7264), 48000 Hz, stereo, fltp, 156 kb/s (default)
  
      Metadata:
  
        creation_time   : 2014-01-13 18:51:33
  
        handler_name    : Apple Sound Media Handler
  
      Stream #0:1(eng): Video: none (drmi / 0x696D7264), 960x718, 3957 kb/s, SAR 4:3 DAR 640:359, 25 fps, 25 tbr, 2500 tbn, 2500 tbc (default)
  
      Metadata:
  
        creation_time   : 2014-01-13 18:51:33
  
        handler_name    : Apple Video Media Handler
  
      Stream #0:2(eng): Audio: none (drms / 0x736D7264), 48000 Hz, 5.1(side), 384 kb/s
  
      Metadata:
  
        creation_time   : 2014-01-13 18:51:33
  
        handler_name    : Apple Sound Media Handler
  
      Stream #0:3(eng): Subtitle: none (p608 / 0x38303670), 1280x718, 0 kb/s (default)
  
      Metadata:
  
        creation_time   : 2014-01-13 18:51:33
  
        handler_name    : Apple Closed Caption Media Handler
  
      Stream #0:4: Video: mjpeg, yuvj444p(pc), 640x640 [SAR 300:300 DAR 1:1], 90k tbr, 90k tbn, 90k tbc
  
  File 'Sherlock.wmv' already exists. Overwrite ? [y/N] [buffer @ 0000000005fc5760] Unable to parse option value "-1" as pixel format
  
      Last message repeated 1 times
  
  [buffer @ 0000000005fc5760] Error setting option pix_fmt to value -1.
  
  [graph 0 input from stream 0:1 @ 00000000027d7da0] Error applying options to the filter.
  
  Error opening filters!

• pjsip build for iOS 5, won't make

  14 novembre 2013, par user1423591

  I retrieved the latest build from the SVN trunk on Friday and attempted to build following the directions on the getting started wiki.

  make dep seems to execute without any problems, but make fails on Samples.mak. It appears there are no rules to make any of the samples when the platform is "arm-apple-darwin9".

  If I open the Xcode project at this point, libavcodec and all it's related libraries are missing as well as LibSDL. There's not mention of a requirement to install SDL and ffmpeg beforehand, so not sure what to do there.

• FFMPEG Re-muxing .MKV to MP4\MV4 while retaining Dolby Digital Plus [closed]

  30 décembre 2020, par David F

  I would be grateful if anyone could help me out here. I'm remuxing a large number of video files from .MKV to .MP4\M4V so they play on the Apple platform (including the TV App) without any issues. It has been a bit of a learning curve, but I’m so close now. It's important NOT to convert, but to remux.

  


  I have achieved the ability to remux 4K HDR with Dolby Digital Plus in a .MKV to 4K HDR with Dolby Digtial 5.1. MP4. The issue is retaining the Dolby Digital Plus. This contains the ATMOS information for object based sound.

  


  The media players on Apple reports Dolby Digital Plus for the .MKV and Dolby Digital 5.1 for .MP4

  


  I'm using FFMPEG with the following command :-

  


  ffmpeg -i original.mkv -c:v copy -c:a eac3 -tag:v hvc1 output.mp4

  


  Output from MediaInfo (note .MKV contains only 1 video and 1 audio track)

  


  Audio -----Original.mkv

  


  

  • ID : 2

  


  • Format : E-AC-3 JOC

  


  • Format/Info : Enhanced AC-3 with Joint
Object Coding

  


  • Commercial name : Dolby Digital Plus with Dolby
Atmos

  


  • Codec ID : **A_**EAC3

  


  • Duration : 51 min 51 s

  


  • Bit rate mode : Constant

  


  


  Audio ----- Remuxed .mp4

  


  

  • ID : 2

  


  • Format : E-AC-3

  


  • Format/Info : Enhanced AC-3

  


  • Commercial name : Dolby Digital Plus

  


  • Codec ID : ec-3

  


  • Duration : 51 min 51 s

  


  • Bit rate mode : Constant

  


  


  The remux operation finished in about 1 minute for a 8Gb 4k video file, so we I know there is no reencoding. My theory is the stream is still a E-AC-3 with Joint Object Control, but its marked as a E-AC-3.

  


  I can see that .mp4 can take E-AC-3 Joint Object Control (JOC) with the demo files from Dolby labs.

  


  I've also remuxed an MKV to MKV and able to see the same result. The JOC markings have been removed with FFMPEG

  


  My ask is, does anyone have any knowledge of how to remux and keep Enhanced AC-3 with Joint Object Control with FFMPEG. Does FFMPEG support this ?

  


  Or know if just editing the Format, Format/Info, and Code ID is enough and the sound information in my .MP4\M4V is E-AC-3 JOC. If so can I just edit the media info, if so how ?

  


  I know Dolby Labs to allow free remuxing of Dolby Digital Plus/ Atmos with sample code and information they have uploaded onto Github for developers. I just wonder if FFMPEG supports it

  


  Thanks in advanced.

  


  David