Port pred8x8l_horizontal_down_mmxext (H.264 intra prediction) from x264

[ffmpeg] / libavcodec / aac.h

diff --git a/libavcodec/aac.h b/libavcodec/aac.h
index fb84c59f3f7491f749db2b9edec677ad40c54666..b40d2c0003e4632ab7ee4c82e9c6e087af264ca6 100644 (file)
--- a/libavcodec/aac.h
+++ b/libavcodec/aac.h
@@ -21,7 +21,7 @@
  */
 
 /**
- * @file libavcodec/aac.h
+ * @file
  * AAC definitions and structures
  * @author Oded Shimon  ( ods15 ods15 dyndns org )
  * @author Maxim Gavrilov ( maxim.gavrilov gmail com )
@@ -30,19 +30,14 @@
 #ifndef AVCODEC_AAC_H
 #define AVCODEC_AAC_H
 
-#include "libavutil/internal.h"
 #include "avcodec.h"
 #include "dsputil.h"
+#include "fft.h"
 #include "mpeg4audio.h"
+#include "sbr.h"
 
 #include <stdint.h>
 
-#define AAC_INIT_VLC_STATIC(num, size) \
-    INIT_VLC_STATIC(&vlc_spectral[num], 6, ff_aac_spectral_sizes[num], \
-         ff_aac_spectral_bits[num], sizeof( ff_aac_spectral_bits[num][0]), sizeof( ff_aac_spectral_bits[num][0]), \
-        ff_aac_spectral_codes[num], sizeof(ff_aac_spectral_codes[num][0]), sizeof(ff_aac_spectral_codes[num][0]), \
-        size);
-
 #define MAX_CHANNELS 64
 #define MAX_ELEM_ID 16
 
@@ -103,6 +98,17 @@ enum CouplingPoint {
     AFTER_IMDCT = 3,
 };
 
+/**
+ * Output configuration status
+ */
+enum OCStatus {
+    OC_NONE,        //< Output unconfigured
+    OC_TRIAL_PCE,   //< Output configuration under trial specified by an inband PCE
+    OC_TRIAL_FRAME, //< Output configuration under trial specified by a frame header
+    OC_GLOBAL_HDR,  //< Output configuration set in a global header but not yet locked
+    OC_LOCKED,      //< Output configuration locked in place
+};
+
 /**
  * Predictor State
  */
@@ -117,6 +123,12 @@ typedef struct {
 
 #define MAX_PREDICTORS 672
 
+#define SCALE_DIV_512    36    ///< scalefactor difference that corresponds to scale difference in 512 times
+#define SCALE_ONE_POS   140    ///< scalefactor index that corresponds to scale=1.0
+#define SCALE_MAX_POS   255    ///< scalefactor index maximum value
+#define SCALE_MAX_DIFF   60    ///< maximum scalefactor difference allowed by standard
+#define SCALE_DIFF_ZERO  60    ///< codebook index corresponding to zero scalefactor indices difference
+
 /**
  * Individual Channel Stream
  */
@@ -127,6 +139,7 @@ typedef struct {
     int num_window_groups;
     uint8_t group_len[8];
     const uint16_t *swb_offset; ///< table of offsets to the lowest spectral coefficient of a scalefactor band, sfb, for a particular window
+    const uint8_t *swb_sizes;   ///< table of scalefactor band sizes for a particular window
     int num_swb;                ///< number of scalefactor window bands
     int num_windows;
     int tns_max_bands;
@@ -166,6 +179,7 @@ typedef struct {
 
 typedef struct {
     int num_pulse;
+    int start;
     int pos[4];
     int amp[4];
 } Pulse;
@@ -190,12 +204,15 @@ typedef struct {
 typedef struct {
     IndividualChannelStream ics;
     TemporalNoiseShaping tns;
-    enum BandType band_type[120];             ///< band types
+    Pulse pulse;
+    enum BandType band_type[128];             ///< band types
     int band_type_run_end[120];               ///< band type run end points
     float sf[120];                            ///< scalefactors
-    DECLARE_ALIGNED_16(float, coeffs[1024]);  ///< coefficients for IMDCT
-    DECLARE_ALIGNED_16(float, saved[512]);    ///< overlap
-    DECLARE_ALIGNED_16(float, ret[1024]);     ///< PCM output
+    int sf_idx[128];                          ///< scalefactor indices (used by encoder)
+    uint8_t zeroes[128];                      ///< band is not coded (used by encoder)
+    DECLARE_ALIGNED(16, float, coeffs)[1024]; ///< coefficients for IMDCT
+    DECLARE_ALIGNED(16, float, saved)[1024];  ///< overlap
+    DECLARE_ALIGNED(16, float, ret)[2048];    ///< PCM output
     PredictorState predictor_state[MAX_PREDICTORS];
 } SingleChannelElement;
 
@@ -204,18 +221,21 @@ typedef struct {
  */
 typedef struct {
     // CPE specific
-    uint8_t ms_mask[120];     ///< Set if mid/side stereo is used for each scalefactor window band
+    int common_window;        ///< Set if channels share a common 'IndividualChannelStream' in bitstream.
+    int     ms_mode;          ///< Signals mid/side stereo flags coding mode (used by encoder)
+    uint8_t ms_mask[128];     ///< Set if mid/side stereo is used for each scalefactor window band
     // shared
     SingleChannelElement ch[2];
     // CCE specific
     ChannelCoupling coup;
+    SpectralBandReplication sbr;
 } ChannelElement;
 
 /**
  * main AAC context
  */
 typedef struct {
-    AVCodecContext * avccontext;
+    AVCodecContext *avctx;
 
     MPEG4AudioConfig m4ac;
 
@@ -229,8 +249,8 @@ typedef struct {
     enum ChannelPosition che_pos[4][MAX_ELEM_ID]; /**< channel element channel mapping with the
                                                    *   first index as the first 4 raw data block types
                                                    */
-    ChannelElement * che[4][MAX_ELEM_ID];
-    ChannelElement * tag_che_map[4][MAX_ELEM_ID];
+    ChannelElement          *che[4][MAX_ELEM_ID];
+    ChannelElement  *tag_che_map[4][MAX_ELEM_ID];
     int tags_mapped;
     /** @} */
 
@@ -238,15 +258,15 @@ typedef struct {
      * @defgroup temporary aligned temporary buffers (We do not want to have these on the stack.)
      * @{
      */
-    DECLARE_ALIGNED_16(float, buf_mdct[1024]);
+    DECLARE_ALIGNED(16, float, buf_mdct)[1024];
     /** @} */
 
     /**
      * @defgroup tables   Computed / set up during initialization.
      * @{
      */
-    MDCTContext mdct;
-    MDCTContext mdct_small;
+    FFTContext mdct;
+    FFTContext mdct_small;
     DSPContext dsp;
     int random_state;
     /** @} */
@@ -261,7 +281,9 @@ typedef struct {
     int sf_offset;                                    ///< offset into pow2sf_tab as appropriate for dsp.float_to_int16
     /** @} */
 
-    DECLARE_ALIGNED(16, float, temp[128]);
+    DECLARE_ALIGNED(16, float, temp)[128];
+
+    enum OCStatus output_configured;
 } AACContext;
 
 #endif /* AVCODEC_AAC_H */