Hi I am Rupesh from India and I have some mp3 files and I want to convert them to m4a files using ffmpeg. I am able to convert mp3 files which do not have metadata successfully to m4a files but unable to convert mp3 files which have artwork.
I have installed open suse leap 15.0 on my system and I have compiled source code successfully which is obtained from ffmpeg website.
I am providing the command I have issued and the error I am getting below.
linux-y30w:~/work/music_test/temp # ffmpeg -i mp3_file.mp3 -codec:a libfdk_aac -vbr 4 output.m4a
ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers
built with gcc 7 (SUSE Linux)
configuration: --enable-libfdk-aac --enable-nonfree --enable-libopus --enable-gpl --enable-libsoxr --enable-libmp3lame --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libfreetype --enable-decoder=png --enable-encoder=png
libavutil 56. 22.100 / 56. 22.100
libavcodec 58. 35.100 / 58. 35.100
libavformat 58. 20.100 / 58. 20.100
libavdevice 58. 5.100 / 58. 5.100
libavfilter 7. 40.101 / 7. 40.101
libswscale 5. 3.100 / 5. 3.100
libswresample 3. 3.100 / 3. 3.100
libpostproc 55. 3.100 / 55. 3.100
Incorrect BOM value
Error reading frame author, skipped
[mp3 @ 0x2e29b00] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from 'mp3_file.mp3':
Metadata:
title : TOP 75 Songs of M.S. Subbulakshmi - Part 2 _ 101 Years _ Audio Jukebox _ Carnati
artist : <unknown>
album : mp3
encoder : Lavf51.12.1
Duration: 09:24:48.77, start: 0.000000, bitrate: 128 kb/s
Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 128 kb/s
Stream #0:1: Video: png, rgb24(pc), 360x360, 90k tbr, 90k tbn, 90k tbc
Metadata:
comment : Cover (front)
Stream mapping:
Stream #0:1 -> #0:0 (png (native) -> h264 (h264_v4l2m2m))
Stream #0:0 -> #0:1 (mp3 (mp3float) -> aac (libfdk_aac))
Press [q] to stop, ?] for help
[ipod @ 0x2e31280] Frame rate very high for a muxer not efficiently supporting it.
Please consider specifying a lower framerate, a different muxer or -vsync 2
[h264_v4l2m2m @ 0x2e3b840] Could not find a valid device
[h264_v4l2m2m @ 0x2e3b840] can't configure encoder
Error initializing output stream 0:0 -- Error while opening encoder for output stream #0:0 - maybe incorrect parameters such as bit_rate, rate, width or height
Conversion failed!
linux-y30w:~/work/music_test/temp #
On getting the above I have even re compiled source code successfully of ffmpeg with options --enable-decoder=png --enable-encoder=png and even no use.
please suggest how to convert mp3 file’s to m4a files using ffmpeg and libfdk-aac including metadata.