#define WFRAC_BITS 14 /* fractional bits for window */
#endif
+#define FRAC_ONE (1 << FRAC_BITS)
+
+#define FIX(a) ((int)((a) * FRAC_ONE))
+
#if defined(USE_HIGHPRECISION) && defined(CONFIG_AUDIO_NONSHORT)
typedef int32_t OUT_INT;
#define OUT_MAX INT32_MAX
AVCodecContext* avctx;
} MPADecodeContext;
+/* layer 3 huffman tables */
+typedef struct HuffTable {
+ int xsize;
+ const uint8_t *bits;
+ const uint16_t *codes;
+} HuffTable;
+
int ff_mpa_l2_select_table(int bitrate, int nb_channels, int freq, int lsf);
int ff_mpa_decode_header(AVCodecContext *avctx, uint32_t head, int *sample_rate);
void ff_mpa_synth_init(MPA_INT *window);
#include "mathops.h"
-#define FRAC_ONE (1 << FRAC_BITS)
-
-#define FIX(a) ((int)((a) * FRAC_ONE))
/* WARNING: only correct for posititive numbers */
#define FIXR(a) ((int)((a) * FRAC_ONE + 0.5))
#define FRAC_RND(a) (((a) + (FRAC_ONE/2)) >> FRAC_BITS)
#define MODE_EXT_MS_STEREO 2
#define MODE_EXT_I_STEREO 1
-/* layer 3 huffman tables */
-typedef struct HuffTable {
- int xsize;
- const uint8_t *bits;
- const uint16_t *codes;
-} HuffTable;
-
#include "mpegaudiodata.h"
#include "mpegaudiodectab.h"
/* currently, cannot change these constants (need to modify
quantization stage) */
#define MUL(a,b) (((int64_t)(a) * (int64_t)(b)) >> FRAC_BITS)
-#define FIX(a) ((int)((a) * (1 << FRAC_BITS)))
#define SAMPLES_BUF_SIZE 4096