[FFmpeg-trac] #7062(undetermined:new): FLAC to ACC unlike original
FFmpeg
trac at avcodec.org
Tue Mar 6 03:43:20 EET 2018
#7062: FLAC to ACC unlike original
-------------------------------------+-------------------------------------
Reporter: nol2ter | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
Sounds a little unnatural between 2:33 and 2:34 on Windows Media Player.
Unlike original, high notes are different.
eg) Lyrics -> eo-saeg-hae-seo
^
unnatural on Windows Media Player
How to reproduce:
{{{
ffmpeg version 3.4.2 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass
--enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-
libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-libopus --enable-libshine --enab
le-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame
--enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264
--enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-
zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-
amrwbenc --enable-libmysofa --enabl
e-libspeex --enable-libxvid --enable-libmfx --enable-cuda --enable-cuvid
--enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth
libavutil 55. 78.100 / 55. 78.100
libavcodec 57.107.100 / 57.107.100
libavformat 57. 83.100 / 57. 83.100
libavdevice 57. 10.100 / 57. 10.100
libavfilter 6.107.100 / 6.107.100
libswscale 4. 8.100 / 4. 8.100
libswresample 2. 9.100 / 2. 9.100
libpostproc 54. 7.100 / 54. 7.100
Input #0, flac, from '2m33s_sound_noise_original.flac':
Metadata:
COMMENT : *deleted
Duration: 00:03:39.55, start: 0.000000, bitrate: 941 kb/s
Stream #0:0: Audio: flac, 44100 Hz, stereo, s16
Stream mapping:
Stream #0:0 -> #0:0 (flac (native) -> aac (native))
Press [q] to stop, [?] for help
Output #0, ipod, to '2m33s_sound_noise.m4a':
Metadata:
encoder : Lavf57.83.100
Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo,
fltp (16 bit), 320 kb/s
Metadata:
encoder : Lavc57.107.100 aac
[ipod @ 0000000000516ce0] Starting second pass: moving the moov atom to
the beginning of the file
size= 8528kB time=00:03:39.56 bitrate= 318.2kbits/s speed= 19x
video:0kB audio:8490kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.445842%
[aac @ 00000000004ebf80] Qavg: 13023.185
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/7062>
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