shithub: libvpx

ref: 021105e3ac551bfdfca07485d55d8bf168f07d1a
dir: /vp8/decoder/onyxd_int.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 VP8_DECODER_ONYXD_INT_H_
#define VP8_DECODER_ONYXD_INT_H_

#include "vpx_config.h"
#include "vp8/common/onyxd.h"
#include "treereader.h"
#include "vp8/common/onyxc_int.h"
#include "vp8/common/threading.h"

#if CONFIG_ERROR_CONCEALMENT
#include "ec_types.h"
#endif

#ifdef __cplusplus
extern "C" {
#endif

typedef struct
{
    int ithread;
    void *ptr1;
    void *ptr2;
} DECODETHREAD_DATA;

typedef struct
{
    MACROBLOCKD  mbd;
} MB_ROW_DEC;


typedef struct
{
    int enabled;
    unsigned int count;
    const unsigned char *ptrs[MAX_PARTITIONS];
    unsigned int sizes[MAX_PARTITIONS];
} FRAGMENT_DATA;

#define MAX_FB_MT_DEC 32

struct frame_buffers
{
    /*
     * this struct will be populated with frame buffer management
     * info in future commits. */

    /* enable/disable frame-based threading */
    int     use_frame_threads;

    /* decoder instances */
    struct VP8D_COMP *pbi[MAX_FB_MT_DEC];

};

typedef struct VP8D_COMP
{
    DECLARE_ALIGNED(16, MACROBLOCKD, mb);

    YV12_BUFFER_CONFIG *dec_fb_ref[NUM_YV12_BUFFERS];

    DECLARE_ALIGNED(16, VP8_COMMON, common);

    /* the last partition will be used for the modes/mvs */
    vp8_reader mbc[MAX_PARTITIONS];

    VP8D_CONFIG oxcf;

    FRAGMENT_DATA fragments;

#if CONFIG_MULTITHREAD
    /* variable for threading */

    int b_multithreaded_rd;
    int max_threads;
    int current_mb_col_main;
    unsigned int decoding_thread_count;
    int allocated_decoding_thread_count;

    int mt_baseline_filter_level[MAX_MB_SEGMENTS];
    int sync_range;
    int *mt_current_mb_col;                  /* Each row remembers its already decoded column. */
    pthread_mutex_t *pmutex;
    pthread_mutex_t mt_mutex;                /* mutex for b_multithreaded_rd */

    unsigned char **mt_yabove_row;           /* mb_rows x width */
    unsigned char **mt_uabove_row;
    unsigned char **mt_vabove_row;
    unsigned char **mt_yleft_col;            /* mb_rows x 16 */
    unsigned char **mt_uleft_col;            /* mb_rows x 8 */
    unsigned char **mt_vleft_col;            /* mb_rows x 8 */

    MB_ROW_DEC           *mb_row_di;
    DECODETHREAD_DATA    *de_thread_data;

    pthread_t           *h_decoding_thread;
    sem_t               *h_event_start_decoding;
    sem_t                h_event_end_decoding;
    /* end of threading data */
#endif

    int64_t last_time_stamp;
    int   ready_for_new_data;

    vp8_prob prob_intra;
    vp8_prob prob_last;
    vp8_prob prob_gf;
    vp8_prob prob_skip_false;

#if CONFIG_ERROR_CONCEALMENT
    MB_OVERLAP *overlaps;
    /* the mb num from which modes and mvs (first partition) are corrupt */
    unsigned int mvs_corrupt_from_mb;
#endif
    int ec_enabled;
    int ec_active;
    int decoded_key_frame;
    int independent_partitions;
    int frame_corrupt_residual;

    vpx_decrypt_cb decrypt_cb;
    void *decrypt_state;
} VP8D_COMP;

int vp8_decode_frame(VP8D_COMP *cpi);

int vp8_create_decoder_instances(struct frame_buffers *fb, VP8D_CONFIG *oxcf);
int vp8_remove_decoder_instances(struct frame_buffers *fb);

#if CONFIG_DEBUG
#define CHECK_MEM_ERROR(lval,expr) do {\
        lval = (expr); \
        if(!lval) \
            vpx_internal_error(&pbi->common.error, VPX_CODEC_MEM_ERROR,\
                               "Failed to allocate "#lval" at %s:%d", \
                               __FILE__,__LINE__);\
    } while(0)
#else
#define CHECK_MEM_ERROR(lval,expr) do {\
        lval = (expr); \
        if(!lval) \
            vpx_internal_error(&pbi->common.error, VPX_CODEC_MEM_ERROR,\
                               "Failed to allocate "#lval);\
    } while(0)
#endif

#ifdef __cplusplus
}  // extern "C"
#endif

#endif  // VP8_DECODER_ONYXD_INT_H_