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rowntreerob on 03/07/12

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Last Edited at 03/07/12 06:44am

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ffmpeg replace audio in mp4 with 3gp audio from phone

/ Published in: Bash

2 steps using ffmpeg to drop the original audio track and replace it with new audio file from the phone

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./ffmpeg -i MAH01688-2.MP4 -map 0:0 -vcodec copy  tgeo.mp4

./ffmpeg -i tgeo.mp4 -i audio_geo.3gpp -vcodec copy -acodec libmp3lame -ar 44100 -ab 44100 applygeo.mp4

STEP 1 drops audio track from mp4 creating outfile 
STEP 2 Muxes audio from 3gp file ( audio from phone ) with the outfile from step 1

--- mp4 INPUT Details:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'MAH01688.MP4':
  Metadata:
    major_brand     : MSNV
    minor_version   : 19595352
    compatible_brands: MSNVmp42isom
    creation_time   : 2012-03-06 08:33:47
  Duration: 00:00:54.05, start: 0.000000, bitrate: 12165 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 12032 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
    Metadata:
      creation_time   : 2012-03-06 08:33:47
      handler_name    : Video Media Handler
    Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 48000 Hz, stereo, s16, 128 kb/s
    Metadata:
      creation_time   : 2012-03-06 08:33:47
      handler_name    : Sound Media Handler

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