FFXIV Shadowbringers OST MP3 fix for iPhone & iTunes Cloud Library

ffprobe.diff

--- /tmp/76.a.txt       2019-09-18 10:31:33.890300257 +0900
+++ /tmp/76.b.txt       2019-09-18 10:31:40.363523048 +0900
@@ -9,24 +9,22 @@
   libswscale      5.  5.100 /  5.  5.100
   libswresample   3.  5.100 /  3.  5.100
   libpostproc    55.  5.100 / 55.  5.100
-[mp3 @ 0x556dc9468640] Estimating duration from bitrate, this may be inaccurate
-Input #0, mp3, from '../shbost/SHADOWBRINGERS_76.mp3':
+Input #0, mp3, from './SHADOWBRINGERS_76.mp3':
   Metadata:
     album           : SHADOWBRINGERS: FINAL FANTASY XIV Original Soundtrack
     artist          : 祖堅正慶 / Masayoshi Soken
     album_artist    : SQUARE ENIX MUSIC
     composer        : 祖堅正慶 / Masayoshi Soken
-    copyright       : 2019 SQUARE ENIX CO., LTD.
-    TDAT            : 28 July 2019
     genre           : Game
-    TEXT            : Michael–Christopher Koji Fox
-    TOFN            : 76_901
     title           : Tomorrow and Tomorrow
     track           : 76
     arranger        : 祖堅正慶 / Masayoshi Soken
+    encoder         : Lavf58.29.100
     date            : 2019
-  Duration: 00:04:31.52, start: 0.000000, bitrate: 340 kb/s
+  Duration: 00:04:31.52, start: 0.011995, bitrate: 337 kb/s
     Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 320 kb/s
-    Stream #0:1: Video: mjpeg (Baseline), yuvj444p(pc, bt470bg/unknown/unknown), 1417x1417, 90k tbr, 90k tbn, 90k tbc (attached pic)
+    Metadata:
+      encoder         : Lavf
+    Stream #0:1: Video: png, rgb24(pc), 1417x1417, 90k tbr, 90k tbn, 90k tbc (attached pic)
     Metadata:
       comment         : Cover (front)

shbost-ffmpeg-copy.sh

# Somehow the MP3s shipped in FFXIV ShB OST Blu-ray doesn't play well on iPhone via iTunes Cloud Library.
# do -c:a copy the MP3 data through ffmpeg with limiting ID3 tags to get it fix.
# Q. Is ID3 tag filtering was really necessary?
# A. I guess it was not. Processing the data through ffmpeg clears the mp3 muxer warning "Estimating duration from bitrate,"
#    Thus there's no problem on ID3 tag.


for x in ../shbost/*.mp3; do
  echo "=========== ${x}"
  out="$(basename "${x}")"
  ffmpeg -y -i ${x} -f ffmetadata meta.orig.txt
  grep '^\(;\|album\|artist\|composer\|genre\|title\|track\|arranger\|date\)' meta.orig.txt > meta.txt
  ffmpeg -y -i ${x} -i meta.txt -vsync 0 -c:a copy -map_metadata 1  -id3v2_version 3 -write_id3v1 1 ${out}
done