[FFmpeg-devel] [PATCH] avcodec: Remove libaacplus
Paul B Mahol
onemda at gmail.com
Sat Jan 30 18:42:27 CET 2016
On 1/29/16, Timothy Gu <timothygu99 at gmail.com> wrote:
> On Mon, Jan 25, 2016 at 01:16:56PM +0100, Michael Niedermayer wrote:
>> On Sun, Jan 24, 2016 at 09:50:01AM -0800, Timothy Gu wrote:
>> > It's inferior to fdk-aac and has an arguably more problematic
>> > license.
>> a reference to the comparision finding its inferriority should be
>> added to the commit message
> A HydrogenAudio user reported:
> It has however one huge advantage: much better quality at low bitrates
> than faac and libaacplus.
> I myself have made a few spectrograms for a comparison of the two encoders
> (thanks Paul for showspectrumpic!). The source is a random 192kHz FLAC I
> online. The orig-48k.png is the downsampled version of that file, since all
> the AAC outputs are downsampled to 48k as well.
> To my untrained eyes, the FDK output is a lot closer to the original.
You could really pick any lossless flac file for more useful
comparison, with mandatory log scaler.
With the random flac file I picked, I can clearly notice black gaps, frequencies
completely gone with native aac encoder. I havent tested other encoders though.
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