vpx/vp8/common/onyx.h

/*
 *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */


#ifndef __INC_VP8_H
#define __INC_VP8_H

#ifdef __cplusplus
extern "C"
{
#endif

#include "vpx/internal/vpx_codec_internal.h"
#include "vpx/vp8cx.h"
#include "vpx_scale/yv12config.h"
#include "type_aliases.h"
#include "ppflags.h"
  typedef int *VP8_PTR;

  /* Create/destroy static data structures. */

  typedef enum {
    NORMAL      = 0,
    FOURFIVE    = 1,
    THREEFIVE   = 2,
    ONETWO      = 3

  } VPX_SCALING;

  typedef enum {
    VP8_LAST_FLAG = 1,
    VP8_GOLD_FLAG = 2,
    VP8_ALT_FLAG = 4
  } VP8_REFFRAME;


  typedef enum {
    USAGE_STREAM_FROM_SERVER    = 0x0,
    USAGE_LOCAL_FILE_PLAYBACK   = 0x1,
    USAGE_CONSTRAINED_QUALITY   = 0x2
  } END_USAGE;


  typedef enum {
    MODE_GOODQUALITY    = 0x1,
    MODE_BESTQUALITY    = 0x2,
    MODE_FIRSTPASS      = 0x3,
    MODE_SECONDPASS     = 0x4,
    MODE_SECONDPASS_BEST = 0x5,
  } MODE;

  typedef enum {
    FRAMEFLAGS_KEY    = 1,
    FRAMEFLAGS_GOLDEN = 2,
    FRAMEFLAGS_ALTREF = 4,
  } FRAMETYPE_FLAGS;


#include <assert.h>
  static __inline void Scale2Ratio(int mode, int *hr, int *hs) {
    switch (mode) {
      case    NORMAL:
        *hr = 1;
        *hs = 1;
        break;
      case    FOURFIVE:
        *hr = 4;
        *hs = 5;
        break;
      case    THREEFIVE:
        *hr = 3;
        *hs = 5;
        break;
      case    ONETWO:
        *hr = 1;
        *hs = 2;
        break;
      default:
        *hr = 1;
        *hs = 1;
        assert(0);
        break;
    }
  }

  typedef struct {
    int Version;            // 4 versions of bitstream defined 0 best quality/slowest decode, 3 lowest quality/fastest decode
    int Width;              // width of data passed to the compressor
    int Height;             // height of data passed to the compressor
    double frame_rate;       // set to passed in framerate
    int target_bandwidth;    // bandwidth to be used in kilobits per second

    int noise_sensitivity;   // parameter used for applying pre processing blur: recommendation 0
    int Sharpness;          // parameter used for sharpening output: recommendation 0:
    int cpu_used;
    unsigned int rc_max_intra_bitrate_pct;

    // mode ->
    // (0)=Realtime/Live Encoding. This mode is optimized for realtim encoding (for example, capturing
    //    a television signal or feed from a live camera). ( speed setting controls how fast )
    // (1)=Good Quality Fast Encoding. The encoder balances quality with the amount of time it takes to
    //    encode the output. ( speed setting controls how fast )
    // (2)=One Pass - Best Quality. The encoder places priority on the quality of the output over encoding
    //    speed. The output is compressed at the highest possible quality. This option takes the longest
    //    amount of time to encode. ( speed setting ignored )
    // (3)=Two Pass - First Pass. The encoder generates a file of statistics for use in the second encoding
    //    pass. ( speed setting controls how fast )
    // (4)=Two Pass - Second Pass. The encoder uses the statistics that were generated in the first encoding
    //    pass to create the compressed output. ( speed setting controls how fast )
    // (5)=Two Pass - Second Pass Best.  The encoder uses the statistics that were generated in the first
    //    encoding pass to create the compressed output using the highest possible quality, and taking a
    //    longer amount of time to encode.. ( speed setting ignored )
    int Mode;               //

    // Key Framing Operations
    int auto_key;            // automatically detect cut scenes and set the keyframes
    int key_freq;            // maximum distance to key frame.

    int allow_lag;           // allow lagged compression (if 0 lagin frames is ignored)
    int lag_in_frames;        // how many frames lag before we start encoding

    // ----------------------------------------------------------------
    // DATARATE CONTROL OPTIONS

    int end_usage; // vbr or cbr

    // buffer targeting aggressiveness
    int under_shoot_pct;
    int over_shoot_pct;

    // buffering parameters
    int starting_buffer_level;  // in seconds
    int optimal_buffer_level;
    int maximum_buffer_size;

    // controlling quality
    int fixed_q;
    int worst_allowed_q;
    int best_allowed_q;
    int cq_level;
    int lossless;

    // two pass datarate control
    int two_pass_vbrbias;        // two pass datarate control tweaks
    int two_pass_vbrmin_section;
    int two_pass_vbrmax_section;
    // END DATARATE CONTROL OPTIONS
    // ----------------------------------------------------------------


    // these parameters aren't to be used in final build don't use!!!
    int play_alternate;
    int alt_freq;

    int encode_breakout;  // early breakout encode threshold : for video conf recommend 800

    int arnr_max_frames;
    int arnr_strength;
    int arnr_type;

    struct vpx_fixed_buf         two_pass_stats_in;
    struct vpx_codec_pkt_list  *output_pkt_list;

    vp8e_tuning tuning;
  } VP8_CONFIG;


  void vp8_initialize();

  VP8_PTR vp8_create_compressor(VP8_CONFIG *oxcf);
  void vp8_remove_compressor(VP8_PTR *comp);

  void vp8_init_config(VP8_PTR onyx, VP8_CONFIG *oxcf);
  void vp8_change_config(VP8_PTR onyx, VP8_CONFIG *oxcf);

// receive a frames worth of data caller can assume that a copy of this frame is made
// and not just a copy of the pointer..
  int vp8_receive_raw_frame(VP8_PTR comp, unsigned int frame_flags, YV12_BUFFER_CONFIG *sd, int64_t time_stamp, int64_t end_time_stamp);
  int vp8_get_compressed_data(VP8_PTR comp, unsigned int *frame_flags, unsigned long *size, unsigned char *dest, int64_t *time_stamp, int64_t *time_end, int flush);
  int vp8_get_preview_raw_frame(VP8_PTR comp, YV12_BUFFER_CONFIG *dest, vp8_ppflags_t *flags);

  int vp8_use_as_reference(VP8_PTR comp, int ref_frame_flags);
  int vp8_update_reference(VP8_PTR comp, int ref_frame_flags);
  int vp8_get_reference(VP8_PTR comp, VP8_REFFRAME ref_frame_flag, YV12_BUFFER_CONFIG *sd);
  int vp8_set_reference(VP8_PTR comp, VP8_REFFRAME ref_frame_flag, YV12_BUFFER_CONFIG *sd);
  int vp8_update_entropy(VP8_PTR comp, int update);
  int vp8_set_roimap(VP8_PTR comp, unsigned char *map, unsigned int rows, unsigned int cols, int delta_q[4], int delta_lf[4], unsigned int threshold[4]);
  int vp8_set_active_map(VP8_PTR comp, unsigned char *map, unsigned int rows, unsigned int cols);
  int vp8_set_internal_size(VP8_PTR comp, VPX_SCALING horiz_mode, VPX_SCALING vert_mode);
  int vp8_get_quantizer(VP8_PTR c);

#ifdef __cplusplus
}
#endif

#endif