X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fnellymoserdec.c;h=59c1b3bdd87958114a1f8efc32007e47a76cbf8c;hb=d1be646e906487b395190af1d6dd8d33c22bf25f;hp=89dde912484c22065db6b558b1589b25a83ceae7;hpb=d36beb3f6902b1217beda576aa18abf7eb72b03c;p=ffmpeg

diff --git a/libavcodec/nellymoserdec.c b/libavcodec/nellymoserdec.c
index 89dde912484..59c1b3bdd87 100644
--- a/libavcodec/nellymoserdec.c
+++ b/libavcodec/nellymoserdec.c
@@ -34,10 +34,12 @@
 #include "nellymoser.h"
 #include "libavutil/lfg.h"
 #include "libavutil/random_seed.h"
-#include "libavcore/audioconvert.h"
+#include "libavutil/audioconvert.h"
 #include "avcodec.h"
 #include "dsputil.h"
 #include "fft.h"
+#include "fmtconvert.h"
+#include "sinewin.h"
 
 #define ALT_BITSTREAM_READER_LE
 #include "get_bits.h"
@@ -45,15 +47,15 @@
 
 typedef struct NellyMoserDecodeContext {
     AVCodecContext* avctx;
-    DECLARE_ALIGNED(16, float,float_buf)[NELLY_SAMPLES];
+    DECLARE_ALIGNED(32, float, float_buf)[NELLY_SAMPLES];
     float           state[128];
     AVLFG           random_state;
     GetBitContext   gb;
-    int             add_bias;
     float           scale_bias;
     DSPContext      dsp;
     FFTContext      imdct_ctx;
-    DECLARE_ALIGNED(16, float,imdct_out)[NELLY_BUF_LEN * 2];
+    FmtConvertContext fmt_conv;
+    DECLARE_ALIGNED(32, float, imdct_out)[NELLY_BUF_LEN * 2];
 } NellyMoserDecodeContext;
 
 static void overlap_and_window(NellyMoserDecodeContext *s, float *state, float *audio, float *a_in)
@@ -65,7 +67,7 @@ static void overlap_and_window(NellyMoserDecodeContext *s, float *state, float *
 
     while (bot < NELLY_BUF_LEN) {
         audio[bot] = a_in [bot]*ff_sine_128[bot]
-                    +state[bot]*ff_sine_128[top] + s->add_bias;
+                    +state[bot]*ff_sine_128[top];
 
         bot++;
         top--;
@@ -120,7 +122,7 @@ static void nelly_decode_block(NellyMoserDecodeContext *s,
         memset(&aptr[NELLY_FILL_LEN], 0,
                (NELLY_BUF_LEN - NELLY_FILL_LEN) * sizeof(float));
 
-        ff_imdct_calc(&s->imdct_ctx, s->imdct_out, aptr);
+        s->imdct_ctx.imdct_calc(&s->imdct_ctx, s->imdct_out, aptr);
         /* XXX: overlapping and windowing should be part of a more
            generic imdct function */
         overlap_and_window(s, s->state, aptr, s->imdct_out);
@@ -135,14 +137,9 @@ static av_cold int decode_init(AVCodecContext * avctx) {
     ff_mdct_init(&s->imdct_ctx, 8, 1, 1.0);
 
     dsputil_init(&s->dsp, avctx);
+    ff_fmt_convert_init(&s->fmt_conv, avctx);
 
-    if(s->dsp.float_to_int16 == ff_float_to_int16_c) {
-        s->add_bias = 385;
-        s->scale_bias = 1.0/(8*32768);
-    } else {
-        s->add_bias = 0;
-        s->scale_bias = 1.0/(1*8);
-    }
+    s->scale_bias = 1.0/(1*8);
 
     /* Generate overlap window */
     if (!ff_sine_128[127])
@@ -182,7 +179,7 @@ static int decode_tag(AVCodecContext * avctx,
 
     for (i=0 ; i<blocks ; i++) {
         nelly_decode_block(s, &buf[i*NELLY_BLOCK_LEN], s->float_buf);
-        s->dsp.float_to_int16(&samples[i*NELLY_SAMPLES], s->float_buf, NELLY_SAMPLES);
+        s->fmt_conv.float_to_int16(&samples[i*NELLY_SAMPLES], s->float_buf, NELLY_SAMPLES);
         *data_size += NELLY_SAMPLES*sizeof(int16_t);
     }