ac3enc: Reshuffle functions to avoid forward declarations

libavcodec/ac3enc_fixed.c

@@ -38,36 +38,6 @@
 static const AVClass ac3enc_class = { "Fixed-Point AC-3 Encoder", av_default_item_name,
                                       ac3_options, LIBAVUTIL_VERSION_INT };
 
-static int normalize_samples(AC3EncodeContext *s);
-
-#include "ac3enc_template.c"
-
-
-/**
- * Finalize MDCT and free allocated memory.
- *
- * @param s  AC-3 encoder private context
- */
-av_cold void AC3_NAME(mdct_end)(AC3EncodeContext *s)
-{
-    ff_mdct_end(&s->mdct);
-}
-
-
-/**
- * Initialize MDCT tables.
- *
- * @param s  AC-3 encoder private context
- * @return   0 on success, negative error code on failure
- */
-av_cold int AC3_NAME(mdct_init)(AC3EncodeContext *s)
-{
-    int ret = ff_mdct_init(&s->mdct, 9, 0, -1.0);
-    s->mdct_window = ff_ac3_window;
-    return ret;
-}
-
-
 /*
  * Normalize the input samples to use the maximum available precision.
  * This assumes signed 16-bit input samples.
@@ -126,6 +96,34 @@ static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl)
 }
 
 
+#include "ac3enc_template.c"
+
+
+/**
+ * Finalize MDCT and free allocated memory.
+ *
+ * @param s  AC-3 encoder private context
+ */
+av_cold void AC3_NAME(mdct_end)(AC3EncodeContext *s)
+{
+    ff_mdct_end(&s->mdct);
+}
+
+
+/**
+ * Initialize MDCT tables.
+ *
+ * @param s  AC-3 encoder private context
+ * @return   0 on success, negative error code on failure
+ */
+av_cold int AC3_NAME(mdct_init)(AC3EncodeContext *s)
+{
+    int ret = ff_mdct_init(&s->mdct, 9, 0, -1.0);
+    s->mdct_window = ff_ac3_window;
+    return ret;
+}
+
+
 static av_cold int ac3_fixed_encode_init(AVCodecContext *avctx)
 {
     AC3EncodeContext *s = avctx->priv_data;

libavcodec/ac3enc_float.c

@@ -39,6 +39,42 @@
 static const AVClass ac3enc_class = { "AC-3 Encoder", av_default_item_name,
                                       ac3_options, LIBAVUTIL_VERSION_INT };
 
+
+/*
+ * Scale MDCT coefficients from float to 24-bit fixed-point.
+ */
+static void scale_coefficients(AC3EncodeContext *s)
+{
+    int chan_size = AC3_MAX_COEFS * s->num_blocks;
+    int cpl       = s->cpl_on;
+    s->ac3dsp.float_to_fixed24(s->fixed_coef_buffer + (chan_size * !cpl),
+                               s->mdct_coef_buffer  + (chan_size * !cpl),
+                               chan_size * (s->channels + cpl));
+}
+
+
+/*
+ * Clip MDCT coefficients to allowable range.
+ */
+static void clip_coefficients(AudioDSPContext *adsp, float *coef,
+                              unsigned int len)
+{
+    adsp->vector_clipf(coef, coef, len, COEF_MIN, COEF_MAX);
+}
+
+
+/*
+ * Calculate a single coupling coordinate.
+ */
+static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl)
+{
+    float coord = 0.125;
+    if (energy_cpl > 0)
+        coord *= sqrtf(energy_ch / energy_cpl);
+    return FFMIN(coord, COEF_MAX);
+}
+
+
 #include "ac3enc_template.c"
 
 
@@ -82,40 +118,6 @@ av_cold int ff_ac3_float_mdct_init(AC3EncodeContext *s)
 }
 
 
-/*
- * Scale MDCT coefficients from float to 24-bit fixed-point.
- */
-static void scale_coefficients(AC3EncodeContext *s)
-{
-    int chan_size = AC3_MAX_COEFS * s->num_blocks;
-    int cpl       = s->cpl_on;
-    s->ac3dsp.float_to_fixed24(s->fixed_coef_buffer + (chan_size * !cpl),
-                               s->mdct_coef_buffer  + (chan_size * !cpl),
-                               chan_size * (s->channels + cpl));
-}
-
-
-/*
- * Clip MDCT coefficients to allowable range.
- */
-static void clip_coefficients(AudioDSPContext *adsp, float *coef,
-                              unsigned int len)
-{
-    adsp->vector_clipf(coef, coef, len, COEF_MIN, COEF_MAX);
-}
-
-
-/*
- * Calculate a single coupling coordinate.
- */
-static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl)
-{
-    float coord = 0.125;
-    if (energy_cpl > 0)
-        coord *= sqrtf(energy_ch / energy_cpl);
-    return FFMIN(coord, COEF_MAX);
-}
-
 av_cold int ff_ac3_float_encode_init(AVCodecContext *avctx)
 {
     AC3EncodeContext *s = avctx->priv_data;

libavcodec/ac3enc_template.c

@@ -36,15 +36,6 @@
 #include "ac3enc.h"
 #include "eac3enc.h"
 
-/* prototypes for static functions in ac3enc_fixed.c and ac3enc_float.c */
-
-static void scale_coefficients(AC3EncodeContext *s);
-
-static void clip_coefficients(AudioDSPContext *adsp, CoefType *coef,
-                              unsigned int len);
-
-static CoefType calc_cpl_coord(CoefSumType energy_ch, CoefSumType energy_cpl);
-
 
 int AC3_NAME(allocate_sample_buffers)(AC3EncodeContext *s)
 {