Re: [FFmpeg-devel] [PATCH 1/8] aacdec: move from scalefactor ranged arrays to flat arrays

2024-05-16 Thread Lynne via ffmpeg-devel
On 16/05/2024 20:30, Michael Niedermayer wrote: On Thu, May 16, 2024 at 12:08:11PM +0200, Lynne via ffmpeg-devel wrote: AAC uses an unconventional system to send scalefactors (the volume+quantization value for each band). Each window is split into either 1 or 8 blocks (long vs short), and

Re: [FFmpeg-devel] [PATCH 1/8] aacdec: move from scalefactor ranged arrays to flat arrays

2024-05-16 Thread Michael Niedermayer
On Thu, May 16, 2024 at 12:08:11PM +0200, Lynne via ffmpeg-devel wrote: > AAC uses an unconventional system to send scalefactors > (the volume+quantization value for each band). > Each window is split into either 1 or 8 blocks (long vs short), > and transformed separately from one another, with

[FFmpeg-devel] [PATCH 1/8] aacdec: move from scalefactor ranged arrays to flat arrays

2024-05-16 Thread Lynne via ffmpeg-devel
AAC uses an unconventional system to send scalefactors (the volume+quantization value for each band). Each window is split into either 1 or 8 blocks (long vs short), and transformed separately from one another, with the coefficients for each being also completely independent. The scalefactors