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• How to begin with FFMpeg - iPhone SDK

  21 décembre 2012, par max_

  I would really appreciate it if someone could point me towards beginning with FFMpeg. What I mean by this is could you point me towards a tutorial firstly on how to download and compile it, and secondly how to install it into my xcode project and use the library.

• Android and iPhone compatible mp4 format using ffmpeg

  23 mai 2015, par Muhammad Umar

  I have two video files, their metatdata and details are as below

  ANDROID
  
  
  
        Metadata:
  
          major_brand     : isom
  
          minor_version   : 512
  
          compatible_brands: isomiso2avc1mp41
  
          encoder         : Lavf55.19.104
  
        Duration: 00:00:04.74, start: 0.046440, bitrate: 696 kb/s
  
          Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x480, 665 kb/s, 15 fps, 15 tbr, 15360 tbn, 30 tbc (default)
  
          Metadata:
  
            handler_name    : VideoHandler
  
          Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 64 kb/s (default)
  
          Metadata:
  
            handler_name    : SoundHandler
  
  
  
      IPHONE
  
  
  
        Metadata:
  
          major_brand     : mp42
  
          minor_version   : 1
  
          compatible_brands: mp41mp42isom
  
          creation_time   : 2015-05-23 05:59:42
  
        Duration: 00:00:02.10, start: 0.000000, bitrate: 1109 kb/s
  
          Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, smpte170m/bt709/bt709), 320x320, 1053 kb/s, 24.19 fps, 30 tbr, 30 tbn, 60 tbc (default)
  
          Metadata:
  
            creation_time   : 2015-05-23 05:59:42
  
            handler_name    : Core Media Video
  
          Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 61 kb/s (default)
  
          Metadata:
  
            creation_time   : 2015-05-23 05:59:42
  
            handler_name    : Core Media Audio

  The iPhone version is NOT running in android VideoView. Which settings should i change to make it compatible with Android VideoView

• ffmpeg image conversion works for nokia conformation heic files but not iphone heic images

  2 novembre 2020, par user12879350

  Below ffmpeg image conversion works for nokia conformation heic files but not iphone heic images

  



  ffmpeg -i c001.heic -c:v mjpeg -frames:v 1 -pix_fmt rgb48 outs.jpg 
(works for nokia conformation files https://github.com/nokiatech/heif_conformance/tree/master/conformance_files 
but not iphone images )

  



  For iphone images ,it throws the below exception
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000021bcaba9980] moov atom not found
image4.heic : Invalid data found when processing input

  



  Is there anything I'm missing