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• Best tool to convert mp3 to aac (FFmpeg Vs NeroAacEnc) [closed]

  3 août 2012, par Soham Dasgupta

  My question is straight forward. I want to convert mp3 to aac. I have knowledge of two such tools which does the job - NeroAacEnc and FFMpeg. Now which one produces the best output and least size is for maestros to answer, so I summon them here to help me accomplish the same. Please also help me with some commands with which I can use.

  Just out of curiosity, is the (ALAC)Apple Lossless Audio Codec which is included with FFMpeg better than Nero Aac Encoder. If so, then how can I use it to convert mp3 to aac.

• avutil/spherical : Add more spherical types

  30 mai 2024, par Derek Buitenhuis

  avutil/spherical : Add more spherical types
  These originate from the Apple Vision Pro, and are documented here :
      https://developer.apple.com/documentation/coremedia/cmprojectiontype
  Signed-off-by : Derek Buitenhuis <derek.buitenhuis@gmail.com>
  

  • [DH] doc/APIchanges
  • [DH] libavutil/spherical.c
  • [DH] libavutil/spherical.h
  • [DH] libavutil/version.h

• Concatenate audio with image and video using ffmpeg

  9 mai 2018, par huynq9

  I have 1 image, 1 audio file and 1 video. I would like to merge all of them to make a video which will

  • show the image and play audio file for the first 10s
  • play the video file

  here is what I was trying to do so far.

  ffmpeg \
  
  -loop 1 -framerate 24 -t 10 -i item1.jpg \
  
  -i "https://audio-ssl.itunes.apple.com/apple-assets-us-std-000001/Music/66/58/f7/mzi.eoocfriy.aac.p.m4a" \
  
  -i item4.mp4 \
  
  -filter_complex \
  
  "[0]scale=432:432,setdar=1[img1]; \
  
   [1]volume=1[aud1]; \
  
   [2]scale=432:432,setdar=1[vid1]; \ 
  
   [img1][aud1][vid1] concat=n=3:v=1:a=1" \
  
  outputfile.mp4

  I got the error :

  [Parsed_setdar_4 @ 0x3063780] Media type mismatch between the
  ’Parsed_setdar_4’ filter output pad 0 (video) and the
  ’Parsed_concat_6’ filter input pad 1 (audio) [AVFilterGraph @
  0x30479a0] Cannot create the link setdar:0 -> concat:1 Error
  initializing complex filters. Invalid argument

  I tried to googled but still cannot figure out what I am doing wrong ?

  Updated :
  I ran the following command :

  ffmpeg \
  
  -loop 1 -framerate 24 -t 10 -i item1.jpg \
  
  -t 10 -i "https://audio-ssl.itunes.apple.com/apple-assets-us-std-000001/Music/66/58/f7/mzi.eoocfriy.aac.p.m4a" \
  
  -i item4.mp4 \
  
  -f lavfi -t 1 -i anullsrc \
  
  -filter_complex \
  
  "[0]scale=432:432,setsar=1[img1]; \
  
  [2]scale=432:432,setsar=1[vid1]; \ 
  
  [img1][1][vid1][3] concat=n=2:v=1:a=1" \
  
  outputfile.mp4

  and got the following error :

  ffmpeg version 3.3.3 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  
    configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --disable-ffserver --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libtheora --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab --enable-libwavpack --enable-nvenc --enable-libzimg
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libavresample   3.  5.  0 /  3.  5.  0
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  Input #0, image2, from 'item1.jpg':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: 8365 kb/s
  
      Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 432x432 [SAR 1:1 DAR 1:1], 24 fps, 24 tbr, 24 tbn, 24 tbc
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'https://audio-ssl.itunes.apple.com/apple-assets-us-std-000001/Music/66/58/f7/mzi.eoocfriy.aac.p.m4a':
  
    Metadata:
  
      major_brand     : M4A
  
      minor_version   : 0
  
      compatible_brands: M4A mp42isom
  
      creation_time   : 1983-06-16T23:20:44.000000Z
  
      iTunSMPB        :  00000000 00000840 00000000 00000000001423C0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
  
    Duration: 00:00:29.98, start: 0.047891, bitrate: 285 kb/s
  
      Stream #1:0(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 271 kb/s (default)
  
      Metadata:
  
        creation_time   : 1983-06-16T23:20:44.000000Z
  
  Input #2, mov,mp4,m4a,3gp,3g2,mj2, from 'item4.mp4':
  
    Metadata:
  
      major_brand     : isom
  
      minor_version   : 512
  
      compatible_brands: isomiso2avc1mp41
  
      creation_time   : 1970-01-01T00:00:00.000000Z
  
      encoder         : Lavf53.24.2
  
    Duration: 00:00:13.70, start: 0.000000, bitrate: 615 kb/s
  
      Stream #2:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 320x240 [SAR 1:1 DAR 4:3], 229 kb/s, 15 fps, 15 tbr, 15360 tbn, 30 tbc (default)
  
      Metadata:
  
        creation_time   : 1970-01-01T00:00:00.000000Z
  
        handler_name    : VideoHandler
  
      Stream #2:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, 5.1, fltp, 382 kb/s (default)
  
      Metadata:
  
        creation_time   : 1970-01-01T00:00:00.000000Z
  
        handler_name    : SoundHandler
  
  Input #3, lavfi, from 'anullsrc':
  
    Duration: N/A, start: 0.000000, bitrate: 705 kb/s
  
      Stream #3:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
  
  [AVFilterGraph @ 0x3955e20] No such filter: ' '
  
  Error initializing complex filters.
  
  Invalid argument