Sync already committed code with that in SoC and commit more OKed hunks of code

Originally committed as revision 14674 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 76 insertions, 2 deletions

diff --git a/libavcodec/aac.h b/libavcodec/aac.h
index 164362f7da..ebf2218c8a 100644
--- a/libavcodec/aac.h
+++ b/libavcodec/aac.h
@@ -42,8 +42,49 @@
         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 IVQUANT_SIZE 1024
 
+enum AudioObjectType {
+    AOT_NULL,
+                               // Support?                Name
+    AOT_AAC_MAIN,              ///< Y                       Main
+    AOT_AAC_LC,                ///< Y                       Low Complexity
+    AOT_AAC_SSR,               ///< N (code in SoC repo)    Scalable Sample Rate
+    AOT_AAC_LTP,               ///< N (code in SoC repo)    Long Term Prediction
+    AOT_SBR,                   ///< N (in progress)         Spectral Band Replication
+    AOT_AAC_SCALABLE,          ///< N                       Scalable
+    AOT_TWINVQ,                ///< N                       Twin Vector Quantizer
+    AOT_CELP,                  ///< N                       Code Excited Linear Prediction
+    AOT_HVXC,                  ///< N                       Harmonic Vector eXcitation Coding
+    AOT_TTSI             = 12, ///< N                       Text-To-Speech Interface
+    AOT_MAINSYNTH,             ///< N                       Main Synthesis
+    AOT_WAVESYNTH,             ///< N                       Wavetable Synthesis
+    AOT_MIDI,                  ///< N                       General MIDI
+    AOT_SAFX,                  ///< N                       Algorithmic Synthesis and Audio Effects
+    AOT_ER_AAC_LC,             ///< N                       Error Resilient Low Complexity
+    AOT_ER_AAC_LTP       = 19, ///< N                       Error Resilient Long Term Prediction
+    AOT_ER_AAC_SCALABLE,       ///< N                       Error Resilient Scalable
+    AOT_ER_TWINVQ,             ///< N                       Error Resilient Twin Vector Quantizer
+    AOT_ER_BSAC,               ///< N                       Error Resilient Bit-Sliced Arithmetic Coding
+    AOT_ER_AAC_LD,             ///< N                       Error Resilient Low Delay
+    AOT_ER_CELP,               ///< N                       Error Resilient Code Excited Linear Prediction
+    AOT_ER_HVXC,               ///< N                       Error Resilient Harmonic Vector eXcitation Coding
+    AOT_ER_HILN,               ///< N                       Error Resilient Harmonic and Individual Lines plus Noise
+    AOT_ER_PARAM,              ///< N                       Error Resilient Parametric
+    AOT_SSC,                   ///< N                       SinuSoidal Coding
+};
+
+enum ExtensionPayloadID {
+    EXT_FILL,
+    EXT_FILL_DATA,
+    EXT_DATA_ELEMENT,
+    EXT_DYNAMIC_RANGE = 0xb,
+    EXT_SBR_DATA      = 0xd,
+    EXT_SBR_DATA_CRC  = 0xe,
+};
+
 enum WindowSequence {
     ONLY_LONG_SEQUENCE,
     LONG_START_SEQUENCE,
@@ -51,7 +92,18 @@ enum WindowSequence {
     LONG_STOP_SEQUENCE,
 };
 
-enum ChannelType {
+enum BandType {
+    ZERO_BT        = 0,     ///< Scalefactors and spectral data are all zero.
+    FIRST_PAIR_BT  = 5,     ///< This and later band types encode two values (rather than four) with one code word.
+    ESC_BT         = 11,    ///< Spectral data are coded with an escape sequence.
+    NOISE_BT       = 13,    ///< Spectral data are scaled white noise not coded in the bitstream.
+    INTENSITY_BT2  = 14,    ///< Scalefactor data are intensity stereo positions.
+    INTENSITY_BT   = 15,    ///< Scalefactor data are intensity stereo positions.
+};
+
+#define IS_CODEBOOK_UNSIGNED(x) ((x - 1) & 10)
+
+enum ChannelPosition {
     AAC_CHANNEL_FRONT = 1,
     AAC_CHANNEL_SIDE  = 2,
     AAC_CHANNEL_BACK  = 3,
@@ -59,12 +111,33 @@ enum ChannelType {
     AAC_CHANNEL_CC    = 5,
 };
 
+typedef struct {
+    int num_pulse;
+    int start;
+    int offset[4];
+    int amp[4];
+} Pulse;
+
+/**
+ * coupling parameters
+ */
+typedef struct {
+
 /**
  * main AAC context
  */
 typedef struct {
     AVCodecContext * avccontext;
 
+    MPEG4AudioConfig m4ac;
+
+    int is_saved;                 ///< Set if elements have stored overlap from previous frame.
+    DynamicRangeControl che_drc;
+
+    enum ChannelPosition che_pos[4][MAX_ELEM_ID]; /**< channel element channel mapping with the
+                                                   *   first index as the first 4 raw data block types
+                                                   */
+
     /**
      * @defgroup tables   Computed / set up during initialization.
      * @{
@@ -75,9 +148,10 @@ typedef struct {
     /** @} */
 
     /**
-     * @defgroup output   Members used for output interleaving and down-mixing.
+     * @defgroup output   Members used for output interleaving.
      * @{
      */
+    float *output_data[MAX_CHANNELS];                 ///< Points to each element's 'ret' buffer (PCM output).
     float add_bias;                                   ///< offset for dsp.float_to_int16
     float sf_scale;                                   ///< Pre-scale for correct IMDCT and dsp.float_to_int16.
     int sf_offset;                                    ///< offset into pow2sf_tab as appropriate for dsp.float_to_int16