ac3: move ac3_downmix() from dsputil to ac3dsp

[ffmpeg.git] / libavcodec / ac3dec.c

diff --git a/libavcodec/ac3dec.c b/libavcodec/ac3dec.c
index daa0702..37426c6 100644 (file)
--- a/libavcodec/ac3dec.c
+++ b/libavcodec/ac3dec.c
@@ -621,34 +621,6 @@ static inline void do_imdct(AC3DecodeContext *s, int channels)
 }
 
 /**
- * Downmix the output to mono or stereo.
- */
-void ff_ac3_downmix_c(float (*samples)[256], float (*matrix)[2],
-                      int out_ch, int in_ch, int len)
-{
-    int i, j;
-    float v0, v1;
-    if (out_ch == 2) {
-        for (i = 0; i < len; i++) {
-            v0 = v1 = 0.0f;
-            for (j = 0; j < in_ch; j++) {
-                v0 += samples[j][i] * matrix[j][0];
-                v1 += samples[j][i] * matrix[j][1];
-            }
-            samples[0][i] = v0;
-            samples[1][i] = v1;
-        }
-    } else if (out_ch == 1) {
-        for (i = 0; i < len; i++) {
-            v0 = 0.0f;
-            for (j = 0; j < in_ch; j++)
-                v0 += samples[j][i] * matrix[j][0];
-            samples[0][i] = v0;
-        }
-    }
-}
-
-/**
  * Upmix delay samples from stereo to original channel layout.
  */
 static void ac3_upmix_delay(AC3DecodeContext *s)
@@ -1266,19 +1238,19 @@ static int decode_audio_block(AC3DecodeContext *s, int blk)
         do_imdct(s, s->channels);
 
         if (downmix_output) {
-            s->dsp.ac3_downmix(s->output, s->downmix_coeffs,
-                               s->out_channels, s->fbw_channels, 256);
+            s->ac3dsp.downmix(s->output, s->downmix_coeffs,
+                              s->out_channels, s->fbw_channels, 256);
         }
     } else {
         if (downmix_output) {
-            s->dsp.ac3_downmix(s->transform_coeffs + 1, s->downmix_coeffs,
-                               s->out_channels, s->fbw_channels, 256);
+            s->ac3dsp.downmix(s->transform_coeffs + 1, s->downmix_coeffs,
+                              s->out_channels, s->fbw_channels, 256);
         }
 
         if (downmix_output && !s->downmixed) {
             s->downmixed = 1;
-            s->dsp.ac3_downmix(s->delay, s->downmix_coeffs, s->out_channels,
-                               s->fbw_channels, 128);
+            s->ac3dsp.downmix(s->delay, s->downmix_coeffs, s->out_channels,
+                              s->fbw_channels, 128);
         }
 
         do_imdct(s, s->out_channels);