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• How to use ffmpeg to copy streams and preserve format and metadata ?

  24 septembre 2023, par dzeek

  I have two files with multiple streams in each.

  



  Output.mp4 has 2 streams : video and audio (streams 0,1)

  



  Input.mp4 has 3 streams : video, audio and data (streams 0,1,2)

  



  I need to add stream 2 from Input.mp4 to Output.mp4 yielding Final.mov.

  



  I tried using this command but it does seem to preserve the format and metadata for the stream that is added :

  



  ffmpeg -y -i Output.mp4 -i Input.mp4 -c copy -map 0:0 -map 0:1 -map 1:2 Final.mov


  



  The output from ffmpeg seems to show that it is working but the format and metadata for the streams in the Final.mov is not correct.

  



  I would appreciate any help with how to change the command to make it work.

  



  Thank you !

  



  Here is the command output :

  



  ffmpeg -y -i Output.mp4 -i Input.mp4 -c copy -map 0:0 -map 0:1 -map 1:2 Final.mov

ffmpeg version N-84679-gd65b595 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 6.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
  libavutil      55. 51.100 / 55. 51.100
  libavcodec     57. 86.103 / 57. 86.103
  libavformat    57. 67.100 / 57. 67.100
  libavdevice    57.  3.101 / 57.  3.101
  libavfilter     6. 78.100 /  6. 78.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Output.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41
    creation_time   : 2018-04-15T21:57:13.000000Z
  Duration: 00:24:25.05, start: 0.000000, bitrate: 3571 kb/s
    Stream #0:0(eng): Video: hevc (Main) (hvc1 / 0x31637668), yuvj420p(pc, bt709), 7680x3840 [SAR 1:1 DAR 2:1], 3252 kb/s, 1 fps, 1 tbr, 100k tbn, 2.15 tbc (default)
    Metadata:
      creation_time   : 2018-04-15T21:57:13.000000Z
      handler_name    : Alias Data Handler
      encoder         : HEVC Coding
    Side data:
      stereo3d: 2D
      spherical: equirectangular (0.000000/0.000000/0.000000)
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
    Metadata:
      creation_time   : 2018-04-15T21:57:13.000000Z
      handler_name    : Alias Data Handler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'Input.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    creation_time   : 2018-04-12T12:02:32.000000Z
    make            : Insta360
    model           : Insta360 Pro
    encoder         : Lavf57.71.100
    description     : {"info":{"gyro_stabilized":false,"initial_view_changed":false}}
  Duration: 00:24:25.00, start: -0.004233, bitrate: 6394 kb/s
    Stream #1:0(und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv), 7680x3840, 6196 kb/s, 1 fps, 1 tbr, 360k tbn, 5 tbc (default)
    Metadata:
      creation_time   : 2018-04-12T12:02:32.000000Z
      handler_name    : VideoHandler
    Side data:
      stereo3d: 2D
      spherical: equirectangular (0.000000/0.000000/0.000000)
    Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 4.0, fltp, 129 kb/s (default)
    Metadata:
      creation_time   : 2018-04-12T12:02:32.000000Z
      handler_name    : SoundHandler
    Stream #1:2(und): Data: none (camm / 0x6D6D6163), 36 kb/s
    Metadata:
      creation_time   : 2018-04-12T12:02:32.000000Z
      handler_name    : CameraMetadataMotionHandler
Output #0, mov, to 'Final.mov':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42mp41
    encoder         : Lavf57.67.100
    Stream #0:0(eng): Video: hevc (Main) (hvc1 / 0x31637668), yuvj420p(pc, bt709), 7680x3840 [SAR 1:1 DAR 2:1], q=2-31, 3252 kb/s, 1 fps, 1 tbr, 100k tbn, 100k tbc (default)
    Metadata:
      creation_time   : 2018-04-15T21:57:13.000000Z
      handler_name    : Alias Data Handler
      encoder         : HEVC Coding
    Side data:
      stereo3d: 2D
      spherical: equirectangular (0.000000/0.000000/0.000000)
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
    Metadata:
      creation_time   : 2018-04-15T21:57:13.000000Z
      handler_name    : Alias Data Handler
    Stream #0:2(und): Data: none (camm / 0x6D6D6163), 36 kb/s
    Metadata:
      creation_time   : 2018-04-12T12:02:32.000000Z
      handler_name    : CameraMetadataMotionHandler
Stream mapping:
  Stream #0:0 -> #0:0 (copy)
  Stream #0:1 -> #0:1 (copy)
  Stream #1:2 -> #0:2 (copy)
Press [q] to stop, [?] for help
[mov @ 0000000004894f00] Unknown hldr_type for camm / 0x6D6D6163, writing dummy valuesd= 629x
frame= 1465 fps=625 q=-1.0 Lsize=  650825kB time=00:24:24.98 bitrate=3639.3kbits/s speed= 625x
video:581593kB audio:56757kB subtitle:0kB other streams:6602kB global headers:0kB muxing overhead: 0.910633%


  



  Here are the streams in the Final.mp4 file :

  



  ffmpeg -i Final.mov

ffmpeg version N-84679-gd65b595 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 6.3.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
  libavutil      55. 51.100 / 55. 51.100
  libavcodec     57. 86.103 / 57. 86.103
  libavformat    57. 67.100 / 57. 67.100
  libavdevice    57.  3.101 / 57.  3.101
  libavfilter     6. 78.100 /  6. 78.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000000002726860] overread end of atom 'stsd' by 2974416 bytes
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Final.mov':
  Metadata:
    major_brand     : qt
    minor_version   : 512
    compatible_brands: qt
    encoder         : Lavf57.67.100
  Duration: 00:24:25.00, start: 0.000000, bitrate: 3639 kb/s
    Stream #0:0(eng): Video: hevc (Main) (hvc1 / 0x31637668), yuvj420p(pc, bt709), 7680x3840 [SAR 1:1 DAR 2:1], 3252 kb/s, 1 fps, 1 tbr, 100k tbn, 2.15 tbc (default)
    Metadata:
      handler_name    : DataHandler
      encoder         : HEVC Coding
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
    Metadata:
      handler_name    : DataHandler
    Stream #0:2(eng): Data: none (stts / 0x73747473), 36 kb/s
    Metadata:
      handler_name    : DataHandler


  


• How can I mux H.264 RTP output into a container using FFMPEG ?

  23 septembre 2013, par Grad

  I am working on the effects of network losses in video transmission. In order to simulate the network losses I use a simple program which drops random RTP packets from the output of H.264 RTP encoding.

  I use Joint Model (JM) 14.2 in order to encode the video. However, I don't use AnnexB format as my output, instead I choose the output as RTP packets. The JM output is generated as RTP packets with RTP headers and payload as a sequence. After that, some of RTP packets are dropped by using a simple program. Then, I decode the output by using also JM and it's error concealment methods. That gives me a YUV file as output. The format of the output is as follows :

       ----------------------------------------------------------------------
  
       | RTP Header #1 | RTP Payload #1 | RTP Header #2 | RTP Payload #2 |...
  
       ----------------------------------------------------------------------

  I want to make a subjective test with these bitstreams and it's very inconvenient to crowdsource this subjective test with GBs of video data. So, I want to mux these bitstreams into a container (i.e. AVI) by using FFMPEG. I have tried to decode these bitstreams with FFMPEG and FFPLAY ; however, both of them didn't work. I also tried the following command and it didn't work, either.

      ffmpeg - f h264 -i  -vcodec copy -r 25 out.avi

  Which format or muxer should I use ? Do I need to convert these files to any other format ?

• ffmpegthumbnailer error with carrierwave-video-thumbnailer

  30 janvier 2014, par scientiffic

  I am getting the error "No such file or directory" when I try to run ffmpegthumbnailer using the carrierwave-video-thumbnailer gem.

  I confirmed that ffmpegthumbnailer is working correctly on my computer since I can generate a thumbnail image from a video straight from the command line.

  From my logs, it looks like my app thinks that it has generated a thumbnail image. However, when I look in the directory, there is no file tmpfile.png, and my app fails with the error.

  Has anyone successfully used the carrierewave-video-thumbnailer gem to create thumbnails, and if so, what am I doing wrong ? Alternatively, if there is some way I can just run ffmpegthumbnailer within my model, I could do that too.

  Here are my logs :

  Running....ffmpegthumbnailer -i /Users/.../Website/public/uploads/tmp/1380315873-21590-2814/thumb_Untitled.mov -o /Users/.../Website/public/uploads/tmp/1380315873-21590-2814/tmpfile.png -c png -q 10 -s 192 -f
  
  Success!
  
  Errno::ENOENT: No such file or directory - (/Users/.../Website/public/uploads/tmp/1380315873-21590-2814/tmpfile.png, /Users/.../Website/public/uploads/tmp/1380315873-21590-2814/thumb_Untitled.mov)

  video_path_uploader.rb

  class VideoPathUploader < CarrierWave::Uploader::Base
  
    include CarrierWave::Video
  
    include CarrierWave::Video::Thumbnailer
  
  
  
    process encode_video: [:mp4]
  
  
  
    # Include RMagick or MiniMagick support:
  
    # include CarrierWave::RMagick
  
    include CarrierWave::MiniMagick
  
  
  
    # Choose what kind of storage to use for this uploader:
  
    # storage :file
  
    storage :fog
  
  
  
    # Override the directory where uploaded files will be stored.
  
    # This is a sensible default for uploaders that are meant to be mounted:
  
    def store_dir
  
      "#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
  
    end
  
  
  
     version :thumb do
  
        process thumbnail: [{format: 'png', quality: 10, size: 192, strip: true, logger: Rails.logger}]
  
        def full_filename for_file
  
          png_name for_file, version_name
  
        end
  
    end
  
  
  
      def png_name for_file, version_name
  
        %Q{#{version_name}_#{for_file.chomp(File.extname(for_file))}.png}
  
      end
  
  
  
  end

  Video.rb

  class Video < ActiveRecord::Base
  
    # maybe we should add a title attribute to the video?
  
    attr_accessible :position, :project_id, :step_id, :image_id, :saved, :embed_url, :thumbnail_url, :video_path
  
    mount_uploader :video_path, VideoPathUploader
  
  ...
  
  end