dirac_encoder.h

Go to the documentation of this file.

/* ***** BEGIN LICENSE BLOCK *****
*
* $Id: dirac_encoder.h,v 1.1 2005/01/30 05:11:41 gabest Exp $ $Name:  $
*
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* The Original Code is BBC Research and Development code.
*
* The Initial Developer of the Original Code is the British Broadcasting
* Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004.
* All Rights Reserved.
*
* Contributor(s): Anuradha Suraparaju (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* the GNU General Public License Version 2 (the "GPL"), or the GNU Lesser
* Public License Version 2.1 (the "LGPL"), in which case the provisions of
* the GPL or the LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the either
* the GPL or LGPL and not to allow others to use your version of this file
* under the MPL, indicate your decision by deleting the provisions above
* and replace them with the notice and other provisions required by the GPL
* or LGPL. If you do not delete the provisions above, a recipient may use
* your version of this file under the terms of any one of the MPL, the GPL
* or the LGPL.
* ***** END LICENSE BLOCK ***** */

#ifndef DIRAC_ENCODER_H
#define DIRAC_ENCODER_H

#include <libdirac_common/dirac_types.h>

#ifdef __cplusplus
extern "C" {
#endif

typedef enum
{ 
    ENC_STATE_INVALID = -1, 
    ENC_STATE_BUFFER, 
    ENC_STATE_AVAIL
} dirac_encoder_state_t ;

typedef enum
{
    CIF, 
    SD576, 
    HD720, 
    HD1080
} dirac_encoder_presets_t;

typedef struct 
{
    float qf;
    int L1_sep;
    int num_L1;
    float cpd;
    int xblen;
    int yblen;
    int xbsep;
    int ybsep;
} dirac_encparams_t;

typedef struct
{
    dirac_seqparams_t seq_params;
    dirac_encparams_t enc_params;
    int instr_flag;
    int decode_flag;
} dirac_encoder_context_t;

extern DllExport void dirac_encoder_context_init (dirac_encoder_context_t *enc_ctx, dirac_encoder_presets_t preset);


typedef struct
{
    unsigned char *buffer;
    int size;
} dirac_enc_data_t;

typedef struct
{
    unsigned int mv_bits;
    unsigned int mv_hdr_bits;
    unsigned int ycomp_bits;
    unsigned int ycomp_hdr_bits;
    unsigned int ucomp_bits;
    unsigned int ucomp_hdr_bits;
    unsigned int vcomp_bits;
    unsigned int vcomp_hdr_bits;
    unsigned int frame_bits;
    unsigned int frame_hdr_bits;
} dirac_enc_framestats_t;

typedef struct
{
    unsigned int mv_bits;
    unsigned int seq_bits;
    unsigned int seq_hdr_bits;
    unsigned int ycomp_bits;
    unsigned int ucomp_bits;
    unsigned int vcomp_bits;
    unsigned int bit_rate;
} dirac_enc_seqstats_t;

typedef struct
{
    int x;
    int y;
} dirac_mv_t;

typedef struct
{
    float SAD;
    float mvcost;
} dirac_mv_cost_t;

typedef struct
{
    dirac_frame_type_t ftype;
    int fnum;
    int num_refs;
    int refs[2];
    int xbsep;
    int ybsep;
    int mb_xlen;
    int mb_ylen;
    int mv_xlen;
    int mv_ylen;
    int *mb_split_mode;
    int *mb_common_mode;
    float *mb_costs;
    int *pred_mode;
    float *intra_costs;
    dirac_mv_cost_t *bipred_costs;
    short *dc_ycomp;
    short *dc_ucomp;
    short *dc_vcomp;
    dirac_mv_t *mv[2];
    dirac_mv_cost_t *pred_costs[2];
} dirac_instr_t;

typedef struct
{
    dirac_encoder_context_t enc_ctx;

    int encoded_frame_avail;

    dirac_enc_data_t enc_buf;

    dirac_frameparams_t enc_fparams;

    dirac_enc_framestats_t enc_fstats;

    dirac_enc_seqstats_t enc_seqstats;

    int end_of_sequence;

    /* locally decoded frame available flag. 
       1 - locally decoded frame available in dec_buf. 
       0 - locally decoded frame not available.
    */
    int decoded_frame_avail;

    dirac_framebuf_t dec_buf;

    dirac_frameparams_t dec_fparams;

    dirac_instr_t instr;

    int instr_data_avail;

    const void *compressor;
} dirac_encoder_t;

extern DllExport dirac_encoder_t *dirac_encoder_init (const dirac_encoder_context_t *enc_ctx, int verbose);

extern DllExport int dirac_encoder_load (dirac_encoder_t *encoder, unsigned char *uncdata, int uncdata_size);

extern DllExport dirac_encoder_state_t dirac_encoder_output (dirac_encoder_t *encoder);

extern DllExport int dirac_encoder_end_sequence (dirac_encoder_t *encoder);

extern DllExport void dirac_encoder_close (dirac_encoder_t *encoder);

#endif
#ifdef __cplusplus
}
#endif

---