[FFmpeg-cvslog] binkaudio: convert to lavu/tx

[Lynne]

ffmpeg | branch: master | Lynne <dev at lynne.ee> | Sun Nov 20 04:57:00 2022 +0100| [ca8aaf24dfd28ceb4709fc518b3c95b7fce07dcc] | committer: Lynne

binkaudio: convert to lavu/tx

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ca8aaf24dfd28ceb4709fc518b3c95b7fce07dcc
---

 configure              |  4 ++--
 libavcodec/binkaudio.c | 42 +++++++++++++++++++++---------------------
 2 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/configure b/configure
index 25cd712b16..5cb80bf1ea 100755
--- a/configure
+++ b/configure
@@ -2772,8 +2772,8 @@ asv2_encoder_select="aandcttables bswapdsp fdctdsp pixblockdsp"
 atrac1_decoder_select="sinewin"
 av1_decoder_select="av1_frame_split_bsf cbs_av1"
 bink_decoder_select="blockdsp hpeldsp"
-binkaudio_dct_decoder_select="dct wma_freqs"
-binkaudio_rdft_decoder_select="rdft wma_freqs"
+binkaudio_dct_decoder_select="wma_freqs"
+binkaudio_rdft_decoder_select="wma_freqs"
 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
 clearvideo_decoder_select="idctdsp"
 cllc_decoder_select="bswapdsp"
diff --git a/libavcodec/binkaudio.c b/libavcodec/binkaudio.c
index 43dca1f565..046bf93207 100644
--- a/libavcodec/binkaudio.c
+++ b/libavcodec/binkaudio.c
@@ -33,15 +33,14 @@
 #include "libavutil/channel_layout.h"
 #include "libavutil/intfloat.h"
 #include "libavutil/mem_internal.h"
+#include "libavutil/tx.h"
 
 #define BITSTREAM_READER_LE
 #include "avcodec.h"
-#include "dct.h"
 #include "decode.h"
 #include "get_bits.h"
 #include "codec_internal.h"
 #include "internal.h"
-#include "rdft.h"
 #include "wma_freqs.h"
 
 #define MAX_DCT_CHANNELS 6
@@ -63,10 +62,8 @@ typedef struct BinkAudioContext {
     float previous[MAX_DCT_CHANNELS][BINK_BLOCK_MAX_SIZE / 16];  ///< coeffs from previous audio block
     float quant_table[96];
     AVPacket *pkt;
-    union {
-        RDFTContext rdft;
-        DCTContext dct;
-    } trans;
+    AVTXContext *tx;
+    av_tx_fn tx_fn;
 } BinkAudioContext;
 
 
@@ -138,12 +135,15 @@ static av_cold int decode_init(AVCodecContext *avctx)
 
     s->first = 1;
 
-    if (CONFIG_BINKAUDIO_RDFT_DECODER && avctx->codec->id == AV_CODEC_ID_BINKAUDIO_RDFT)
-        ret = ff_rdft_init(&s->trans.rdft, frame_len_bits, DFT_C2R);
-    else if (CONFIG_BINKAUDIO_DCT_DECODER)
-        ret = ff_dct_init(&s->trans.dct, frame_len_bits, DCT_III);
-    else
+    if (CONFIG_BINKAUDIO_RDFT_DECODER && avctx->codec->id == AV_CODEC_ID_BINKAUDIO_RDFT) {
+        float scale = 0.5;
+        ret = av_tx_init(&s->tx, &s->tx_fn, AV_TX_FLOAT_RDFT, 1, 1 << frame_len_bits, &scale, 0);
+    } else if (CONFIG_BINKAUDIO_DCT_DECODER) {
+        float scale = 1.0 / (1 << frame_len_bits);
+        ret = av_tx_init(&s->tx, &s->tx_fn, AV_TX_FLOAT_DCT, 1, 1 << (frame_len_bits - 1), &scale, 0);
+    } else {
         av_assert0(0);
+    }
     if (ret < 0)
         return ret;
 
@@ -177,13 +177,12 @@ static int decode_block(BinkAudioContext *s, float **out, int use_dct,
     float q, quant[25];
     int width, coeff;
     GetBitContext *gb = &s->gb;
+    LOCAL_ALIGNED_32(float, coeffs, [4098]);
 
     if (use_dct)
         skip_bits(gb, 2);
 
     for (ch = 0; ch < channels; ch++) {
-        FFTSample *coeffs = out[ch + ch_offset];
-
         if (s->version_b) {
             if (get_bits_left(gb) < 64)
                 return AVERROR_INVALIDDATA;
@@ -251,10 +250,15 @@ static int decode_block(BinkAudioContext *s, float **out, int use_dct,
 
         if (CONFIG_BINKAUDIO_DCT_DECODER && use_dct) {
             coeffs[0] /= 0.5;
-            s->trans.dct.dct_calc(&s->trans.dct,  coeffs);
+            s->tx_fn(s->tx, out[ch + ch_offset], coeffs, sizeof(float));
+        } else if (CONFIG_BINKAUDIO_RDFT_DECODER) {
+            for (int i = 2; i < s->frame_len; i += 2)
+                coeffs[i + 1] *= -1;
+
+            coeffs[s->frame_len + 0] = coeffs[1];
+            coeffs[s->frame_len + 1] = coeffs[1] = 0;
+            s->tx_fn(s->tx, out[ch + ch_offset], coeffs, sizeof(AVComplexFloat));
         }
-        else if (CONFIG_BINKAUDIO_RDFT_DECODER)
-            s->trans.rdft.rdft_calc(&s->trans.rdft, coeffs);
     }
 
     for (ch = 0; ch < channels; ch++) {
@@ -278,11 +282,7 @@ static int decode_block(BinkAudioContext *s, float **out, int use_dct,
 static av_cold int decode_end(AVCodecContext *avctx)
 {
     BinkAudioContext * s = avctx->priv_data;
-    if (CONFIG_BINKAUDIO_RDFT_DECODER && avctx->codec->id == AV_CODEC_ID_BINKAUDIO_RDFT)
-        ff_rdft_end(&s->trans.rdft);
-    else if (CONFIG_BINKAUDIO_DCT_DECODER)
-        ff_dct_end(&s->trans.dct);
-
+    av_tx_uninit(&s->tx);
     return 0;
 }