Merge commit '5fd553d31272d5ed42a7a5a0ecaab7b3452da83a'

[ffmpeg] / libavcodec / aacsbr.h

diff --git a/libavcodec/aacsbr.h b/libavcodec/aacsbr.h
index f5e33ab68824cac41b0bf7babf89bec80bac0576..ed1a7f9265f660286e80ff5fa56b2eb7ab8205a7 100644 (file)
--- a/libavcodec/aacsbr.h
+++ b/libavcodec/aacsbr.h
@@ -33,18 +33,63 @@
 #include "aac.h"
 #include "sbr.h"
 
+#define ENVELOPE_ADJUSTMENT_OFFSET 2
+#define NOISE_FLOOR_OFFSET FIXR(6.0f)
+
+/**
+ * SBR VLC tables
+ */
+enum {
+    T_HUFFMAN_ENV_1_5DB,
+    F_HUFFMAN_ENV_1_5DB,
+    T_HUFFMAN_ENV_BAL_1_5DB,
+    F_HUFFMAN_ENV_BAL_1_5DB,
+    T_HUFFMAN_ENV_3_0DB,
+    F_HUFFMAN_ENV_3_0DB,
+    T_HUFFMAN_ENV_BAL_3_0DB,
+    F_HUFFMAN_ENV_BAL_3_0DB,
+    T_HUFFMAN_NOISE_3_0DB,
+    T_HUFFMAN_NOISE_BAL_3_0DB,
+};
+
+/**
+ * bs_frame_class - frame class of current SBR frame (14496-3 sp04 p98)
+ */
+enum {
+    FIXFIX,
+    FIXVAR,
+    VARFIX,
+    VARVAR,
+};
+
+enum {
+    EXTENSION_ID_PS = 2,
+};
+
+static const int8_t vlc_sbr_lav[10] =
+    { 60, 60, 24, 24, 31, 31, 12, 12, 31, 12 };
+
+#define SBR_INIT_VLC_STATIC(num, size) \
+    INIT_VLC_STATIC(&vlc_sbr[num], 9, sbr_tmp[num].table_size / sbr_tmp[num].elem_size,     \
+                    sbr_tmp[num].sbr_bits ,                      1,                      1, \
+                    sbr_tmp[num].sbr_codes, sbr_tmp[num].elem_size, sbr_tmp[num].elem_size, \
+                    size)
+
+#define SBR_VLC_ROW(name) \
+    { name ## _codes, name ## _bits, sizeof(name ## _codes), sizeof(name ## _codes[0]) }
+
 /** Initialize SBR. */
-void ff_aac_sbr_init(void);
+void AAC_RENAME(ff_aac_sbr_init)(void);
 /** Initialize one SBR context. */
-void ff_aac_sbr_ctx_init(AACContext *ac, SpectralBandReplication *sbr);
+void AAC_RENAME(ff_aac_sbr_ctx_init)(AACContext *ac, SpectralBandReplication *sbr);
 /** Close one SBR context. */
-void ff_aac_sbr_ctx_close(SpectralBandReplication *sbr);
+void AAC_RENAME(ff_aac_sbr_ctx_close)(SpectralBandReplication *sbr);
 /** Decode one SBR element. */
-int ff_decode_sbr_extension(AACContext *ac, SpectralBandReplication *sbr,
+int AAC_RENAME(ff_decode_sbr_extension)(AACContext *ac, SpectralBandReplication *sbr,
                             GetBitContext *gb, int crc, int cnt, int id_aac);
 /** Apply one SBR element to one AAC element. */
-void ff_sbr_apply(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
-                  float* L, float *R);
+void AAC_RENAME(ff_sbr_apply)(AACContext *ac, SpectralBandReplication *sbr, int id_aac,
+                  INTFLOAT* L, INTFLOAT *R);
 
 void ff_aacsbr_func_ptr_init_mips(AACSBRContext *c);