Hi,
I am trying to encode audio file .wav into HE-AAC. I am able to encode,
However, when trying to encode in VBR, I am getting an error stating
"[libfdk_aac @ 0x29c5c00] Note, the VBR setting is unsupported and only works
with some parameter combinations" and its encoding into CBR.
How can I encode into vbr for HE-AAC. I am using the below mentioned command.
ffmpeg -i input.wav -c:a libfdk_aac -profile:a aac_he -vbr 3 -ar 48000
output.m4a
Error I am getting is: ffmpeg -i Bera_Jaal.wav -c:a libfdk_aac -profile:a
aac_he -vbr 2 Bera_vbr.m4a
ffmpeg version N-95890-gdf62505 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609
configuration: --prefix=/home/ashish/ffmpeg_build --pkg-config-flags=--static
--extra-cflags=-I/home/ashish/ffmpeg_build/include
--extra-ldflags=-L/home/ashish/ffmpeg_build/lib --bindir=/home/ashish/bin
--enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libtheora
--enable-libvorbis --enable-libmp3lame --enable-nonfree --enable-gpl
libavutil 56. 36.101 / 56. 36.101
libavcodec 58. 64.101 / 58. 64.101
libavformat 58. 35.100 / 58. 35.100
libavdevice 58. 9.101 / 58. 9.101
libavfilter 7. 67.100 / 7. 67.100
libswscale 5. 6.100 / 5. 6.100
libswresample 3. 6.100 / 3. 6.100
libpostproc 55. 6.100 / 55. 6.100
Guessed Channel Layout for Input Stream #0.0 : stereo
Input #0, wav, from 'Bera_Jaal.wav':
Duration: 00:02:44.04, bitrate: 1411 kb/s
Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, stereo,
s16, 1411 kb/s
File 'Bera_vbr.m4a' already exists. Overwrite? [y/N] y
Stream mapping:
Stream #0:0 -> #0:0 (pcm_s16le (native) -> aac (libfdk_aac))
Press [q] to stop, [?] for help
[libfdk_aac @ 0x2345c00] Note, the VBR setting is unsupported and only works
with some parameter combinations
Output #0, ipod, to 'Bera_vbr.m4a':
Metadata:
encoder : Lavf58.35.100
Stream #0:0: Audio: aac (libfdk_aac) (HE-AAC) (mp4a / 0x6134706D), 44100
Hz, stereo, s16
Metadata:
encoder : Lavc58.64.101 libfdk_aac
size= 1415kB time=00:02:44.05 bitrate= 70.7kbits/s speed= 27x
video:0kB audio:1401kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 1.043005%
Please help me on this.
--
Ashish
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