[vlc-commits] a52: drop reverse-stereo support

[Thomas Guillem]

vlc | branch: master | Thomas Guillem <thomas at gllm.fr> | Thu Jul 13 14:19:06 2017 +0200| [a5feca75a7b17841e00df1c1b07141936f19a647] | committer: Thomas Guillem

a52: drop reverse-stereo support

This code path was never used since the AOUT_CHAN_REVERSESTEREO flag is never
set from the input or from this codec.

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=a5feca75a7b17841e00df1c1b07141936f19a647
---

 modules/codec/dca.c | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/modules/codec/dca.c b/modules/codec/dca.c
index bb8f96dbb2..4462e77af6 100644
--- a/modules/codec/dca.c
+++ b/modules/codec/dca.c
@@ -107,21 +107,6 @@ static void Duplicate( float * p_out, const float * p_in )
     }
 }
 
-/*
- * helper function to exchange left & right channels
- */
-static void Exchange( float * p_out, const float * p_in )
-{
-    const float * p_first = p_in + 256;
-    const float * p_second = p_in;
-
-    for ( int i = 0; i < 256; i++ )
-    {
-        *p_out++ = *p_first++;
-        *p_out++ = *p_second++;
-    }
-}
-
 static int Decode( decoder_t *p_dec, block_t *p_in_buf )
 {
     decoder_sys_t  *p_sys = p_dec->p_sys;
@@ -186,12 +171,6 @@ static int Decode( decoder_t *p_dec, block_t *p_in_buf )
             Duplicate( (float *)(p_out_buf->p_buffer + i * i_bytes_per_block),
                        p_samples );
         }
-        else if ( p_dec->fmt_out.audio.i_original_channels
-                    & AOUT_CHAN_REVERSESTEREO )
-        {
-            Exchange( (float *)(p_out_buf->p_buffer + i * i_bytes_per_block),
-                      p_samples );
-        }
         else
         {
             /* Interleave the *$£%ù samples. */