Merge commit 'e352b293712ff7cbde67eba3ce3f8510b037de09'

[ffmpeg] / libavcodec / lpc.c

diff --git a/libavcodec/lpc.c b/libavcodec/lpc.c
index 1482e57615692fc931923ab4fc11e5d6da2a9467..deb02e7f5825a46f7e3d56fedf4fca5aab1c4dfb 100644 (file)
--- a/libavcodec/lpc.c
+++ b/libavcodec/lpc.c
@@ -2,20 +2,20 @@
  * LPC utility code
  * Copyright (c) 2006  Justin Ruggles <justin.ruggles@gmail.com>
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg 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.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -24,6 +24,7 @@
 
 #define LPC_USE_DOUBLE
 #include "lpc.h"
+#include "libavutil/avassert.h"
 
 
 /**
@@ -38,7 +39,7 @@ static void lpc_apply_welch_window_c(const int32_t *data, int len,
 
     /* The optimization in commit fa4ed8c does not support odd len.
      * If someone wants odd len extend that change. */
-    assert(!(len & 1));
+    av_assert2(!(len & 1));
 
     n2 = (len >> 1);
     c = 2.0 / (len - 1.0);
@@ -179,8 +180,9 @@ int ff_lpc_calc_coefs(LPCContext *s,
     int i, j, pass = 0;
     int opt_order;
 
-    assert(max_order >= MIN_LPC_ORDER && max_order <= MAX_LPC_ORDER &&
+    av_assert2(max_order >= MIN_LPC_ORDER && max_order <= MAX_LPC_ORDER &&
            lpc_type > FF_LPC_TYPE_FIXED);
+    av_assert0(lpc_type == FF_LPC_TYPE_CHOLESKY || lpc_type == FF_LPC_TYPE_LEVINSON);
 
     /* reinit LPC context if parameters have changed */
     if (blocksize != s->blocksize || max_order != s->max_order ||
@@ -189,6 +191,9 @@ int ff_lpc_calc_coefs(LPCContext *s,
         ff_lpc_init(s, blocksize, max_order, lpc_type);
     }
 
+    if(lpc_passes <= 0)
+        lpc_passes = 2;
+
     if (lpc_type == FF_LPC_TYPE_LEVINSON || (lpc_type == FF_LPC_TYPE_CHOLESKY && lpc_passes > 1)) {
         s->lpc_apply_welch_window(samples, blocksize, s->windowed_samples);
 
@@ -203,7 +208,7 @@ int ff_lpc_calc_coefs(LPCContext *s,
     }
 
     if (lpc_type == FF_LPC_TYPE_CHOLESKY) {
-        LLSModel m[2];
+        LLSModel *m = s->lls_models;
         LOCAL_ALIGNED(32, double, var, [FFALIGN(MAX_LPC_ORDER+1,4)]);
         double av_uninit(weight);
         memset(var, 0, FFALIGN(MAX_LPC_ORDER+1,4)*sizeof(*var));
@@ -244,6 +249,7 @@ int ff_lpc_calc_coefs(LPCContext *s,
         for(i=max_order-1; i>0; i--)
             ref[i] = ref[i-1] - ref[i];
     }
+
     opt_order = max_order;
 
     if(omethod == ORDER_METHOD_EST) {