X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavcodec%2Fmpc.c;h=4573860525bd093a3f3f9d0fbf34cb30c43d64cc;hb=f907615f0813e8499f06a7eebccf1c63fce87c8e;hp=dc37df6095c904fba2c0366d824cb48ea6ffee71;hpb=9adcccde0c9a712a8697e94efe3bbac6d64f46dc;p=ffmpeg

diff --git a/libavcodec/mpc.c b/libavcodec/mpc.c
index dc37df6095c..4573860525b 100644
--- a/libavcodec/mpc.c
+++ b/libavcodec/mpc.c
@@ -2,25 +2,26 @@
  * Musepack decoder core
  * Copyright (c) 2006 Konstantin Shishkov
  *
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
 /**
- * @file libavcodec/mpc.c Musepack decoder core
+ * @file
+ * Musepack decoder core
  * MPEG Audio Layer 1/2 -like codec with frames of 1152 samples
  * divided into 32 subbands.
  */
@@ -28,6 +29,7 @@
 #include "avcodec.h"
 #include "get_bits.h"
 #include "dsputil.h"
+#include "mpegaudiodsp.h"
 #include "mpegaudio.h"
 
 #include "mpc.h"
@@ -35,33 +37,34 @@
 
 void ff_mpc_init(void)
 {
-    ff_mpa_synth_init(ff_mpa_synth_window);
+    ff_mpa_synth_init_fixed(ff_mpa_synth_window_fixed);
 }
 
 /**
  * Process decoded Musepack data and produce PCM
  */
-static void mpc_synth(MPCContext *c, int16_t *out)
+static void mpc_synth(MPCContext *c, int16_t *out, int channels)
 {
     int dither_state = 0;
     int i, ch;
     OUT_INT samples[MPA_MAX_CHANNELS * MPA_FRAME_SIZE], *samples_ptr;
 
-    for(ch = 0;  ch < 2; ch++){
+    for(ch = 0;  ch < channels; ch++){
         samples_ptr = samples + ch;
         for(i = 0; i < SAMPLES_PER_BAND; i++) {
-            ff_mpa_synth_filter(c->synth_buf[ch], &(c->synth_buf_offset[ch]),
-                                ff_mpa_synth_window, &dither_state,
-                                samples_ptr, 2,
+            ff_mpa_synth_filter_fixed(&c->mpadsp,
+                                c->synth_buf[ch], &(c->synth_buf_offset[ch]),
+                                ff_mpa_synth_window_fixed, &dither_state,
+                                samples_ptr, channels,
                                 c->sb_samples[ch][i]);
-            samples_ptr += 64;
+            samples_ptr += 32 * channels;
         }
     }
-    for(i = 0; i < MPC_FRAME_SIZE*2; i++)
+    for(i = 0; i < MPC_FRAME_SIZE*channels; i++)
         *out++=samples[i];
 }
 
-void ff_mpc_dequantize_and_synth(MPCContext * c, int maxband, void *data)
+void ff_mpc_dequantize_and_synth(MPCContext * c, int maxband, void *data, int channels)
 {
     int i, j, ch;
     Band *bands = c->bands;
@@ -97,5 +100,5 @@ void ff_mpc_dequantize_and_synth(MPCContext * c, int maxband, void *data)
         }
     }
 
-    mpc_synth(c, data);
+    mpc_synth(c, data, channels);
 }