diff options
| author | Lynne <dev@lynne.ee> | 2022-10-28 21:36:10 +0200 |
|---|---|---|
| committer | Lynne <dev@lynne.ee> | 2022-11-06 14:39:33 +0100 |
| commit | 469cd8d7fa55ebd07be31e4c5bd0ed4b45c551dc (patch) | |
| tree | 39a6426364b9fdd54468fc16b0bc6137c42927c7 /libavcodec/aacdec.c | |
| parent | 4cee7ebd75205bca06ca8010711ae2f83a55caa6 (diff) | |
| download | ffmpeg-469cd8d7fa55ebd07be31e4c5bd0ed4b45c551dc.tar.gz | |
aacdec: convert to lavu/tx and support fixed-point 960-sample decoding
This patch replaces the transform used in AAC with lavu/tx and removes
the limitation on only being able to decode 960-sample files
with the float decoder.
This commit also removes a whole bunch of unnecessary and slow
lifting steps the decoder did to compensate for the poor accuracy
of the old integer transformation code.
Overall float decoder speedup on Zen 3 for 64kbps: 32%
Diffstat (limited to 'libavcodec/aacdec.c')
| -rw-r--r-- | libavcodec/aacdec.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c index 2fdfd6b221..ca31540d3c 100644 --- a/libavcodec/aacdec.c +++ b/libavcodec/aacdec.c @@ -32,16 +32,14 @@ * @author Maxim Gavrilov ( maxim.gavrilov gmail com ) */ -#define FFT_FLOAT 1 #define USE_FIXED 0 +#define TX_TYPE AV_TX_FLOAT_MDCT #include "libavutil/float_dsp.h" #include "libavutil/opt.h" #include "avcodec.h" #include "codec_internal.h" #include "get_bits.h" -#include "fft.h" -#include "mdct15.h" #include "lpc.h" #include "kbdwin.h" #include "sinewin.h" |