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Add support for baking in ReplayGain values

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This commit is contained in:
RandyTheSilly
2022-04-19 23:01:07 -04:00
parent b5a2b9adb3
commit e833e4ce60
1 changed files with 23 additions and 7 deletions
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bin/flac2pod
+23 -7
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@@ -72,6 +72,7 @@ def scan_destination_convert():
_cmd = f"screen -DmS flac2pod{_i} ffmpeg -i {_file_s} -c:v copy -ab 320k -map_metadata 0" \ _cmd = f"screen -DmS flac2pod{_i} ffmpeg -i {_file_s} -c:v copy -ab 320k -map_metadata 0" \
f" -id3v2_version 3 {_file_d} </dev/null; rg2sc -f {_file_d}" f" -id3v2_version 3 {_file_d} </dev/null; rg2sc -f {_file_d}"
else: else:
# get relevant ReplayGain info
_audio = FLAC(f"{_file}.flac") _audio = FLAC(f"{_file}.flac")
if _audio.get('replaygain_track_gain'): if _audio.get('replaygain_track_gain'):
_rggain = float(_audio.get('replaygain_track_gain')[0][:-3]) _rggain = float(_audio.get('replaygain_track_gain')[0][:-3])
@@ -85,14 +86,27 @@ def scan_destination_convert():
_rgpeak = float(_audio.get('REPLAYGAIN_TRACK_PEAK')[0]) _rgpeak = float(_audio.get('REPLAYGAIN_TRACK_PEAK')[0])
else: else:
_rgpeak = None _rgpeak = None
if args.strip: # determine ffmpeg arguments
_cmd = f"screen -DmS flac2pod{_i} ffmpeg -i {_file_s} -c:a aac -ab 256k -map_metadata 0 -metadata" \ if args.strip and args.bake:
f" comment='FLAC2PODRG#{_rggain}#{_rgpeak}#' -aac_pns 0 -movflags +faststart -vn" \ _rg2sc_args = f"; rg2sc -S {_file_d}"
f" {_file_d} </dev/null; rg2sc -f -s {_file_d}" elif args.strip and not args.bake:
_rg2sc_args = f"; rg2sc -f -s {_file_d}"
elif not args.strip and not args.bake:
_rg2sc_args = f";rg2sc -f {_file_d}"
else: # elif not args.strip and args.bake
_rg2sc_args = ''
if args.bake:
_bake_args, _flac2pod_rg_tags = '-filter:a "volume=' + str(_rggain) + 'dB"', ''
else: else:
_cmd = f"screen -DmS flac2pod{_i} ffmpeg -i {_file_s} -c:a aac -ab 256k -c:v copy -map_metadata" \ _bake_args, _flac2pod_rg_tags = '', f"comment='FLAC2PODRG#{_rggain}#{_rgpeak}#'"
f" 0 -metadata comment='FLAC2PODRG#{_rggain}#{_rgpeak}#' -aac_pns 0 -movflags +faststart" \ if args.strip:
f" {_file_d} </dev/null; rg2sc -f {_file_d}" _copy_video1, _copy_video2 = '', '-vn'
else:
_copy_video1, _copy_video2 = '-c:v copy', ''
# generate the appropriate ffmpeg command
_cmd = f"screen -DmS flac2pod{_i} ffmpeg -i {_file_s} -c:a aac -ab 256k {_copy_video1} " \
f"-map_metadata 0 -metadata {_flac2pod_rg_tags} -aac_pns 0 -movflags +faststart {_copy_video2}" \
f" {_file_d} </dev/null{_rg2sc_args}"
Popen(_cmd, shell=True) Popen(_cmd, shell=True)
_active_processes = int(check_output('ps -C ffmpeg | wc -l', shell=True)) - 1 _active_processes = int(check_output('ps -C ffmpeg | wc -l', shell=True)) - 1
while _active_processes != 0: while _active_processes != 0:
@@ -114,6 +128,8 @@ if __name__ == "__main__":
help='destination parent directory for output - will be created if it does not already exist') help='destination parent directory for output - will be created if it does not already exist')
parser.add_argument('-s', '--strip', action='store_true', parser.add_argument('-s', '--strip', action='store_true',
help='strip all TXXX, APIC, and covr tags from the output files') help='strip all TXXX, APIC, and covr tags from the output files')
parser.add_argument('-b', '--bake', action='store_true',
help='bake (encode) ReplayGain values into the file instead of using SoundCheck tags')
parser.add_argument('--mp3', action='store_true', parser.add_argument('--mp3', action='store_true',
help='convert to MP3, as opposed to the default of AAC .M4A') help='convert to MP3, as opposed to the default of AAC .M4A')