C++ (Cpp) get_cabac_ueg示例

示例#1

文件： cabac.c 项目： gromaudio/dashtest

int main(){
    CABACContext c;
    uint8_t b[9*SIZE];
    uint8_t r[9*SIZE];
    int i;
    uint8_t state[10]= {0};
    
    ff_init_cabac_encoder(&c, b, SIZE);
    ff_init_cabac_states(&c, ff_h264_lps_range, ff_h264_mps_state, ff_h264_lps_state, 64);
    
    for(i=0; i<SIZE; i++){
        r[i]= random()%7;
    }
    
    for(i=0; i<SIZE; i++){
START_TIMER
        put_cabac_bypass(&c, r[i]&1);
STOP_TIMER("put_cabac_bypass")
    }
    
    for(i=0; i<SIZE; i++){
START_TIMER
        put_cabac(&c, state, r[i]&1);
STOP_TIMER("put_cabac")
    }

    for(i=0; i<SIZE; i++){
START_TIMER
        put_cabac_u(&c, state, r[i], 6, 3, i&1);
STOP_TIMER("put_cabac_u")
    }    

    for(i=0; i<SIZE; i++){
START_TIMER
        put_cabac_ueg(&c, state, r[i], 3, 0, 1, 2);
STOP_TIMER("put_cabac_ueg")
    }    
   
    put_cabac_terminate(&c, 1);
    
    ff_init_cabac_decoder(&c, b, SIZE);
    
    memset(state, 0, sizeof(state));
    
    for(i=0; i<SIZE; i++){
START_TIMER
        if( (r[i]&1) != get_cabac_bypass(&c) )
            printf("CABAC bypass failure at %d\n", i);
STOP_TIMER("get_cabac_bypass")
    }
    
    for(i=0; i<SIZE; i++){
START_TIMER
        if( (r[i]&1) != get_cabac(&c, state) )
            printf("CABAC failure at %d\n", i);
STOP_TIMER("get_cabac")
    }

    for(i=0; i<SIZE; i++){
START_TIMER
        if( r[i] != get_cabac_u(&c, state, (i&1) ? 6 : 7, 3, i&1) )
            printf("CABAC unary (truncated) binarization failure at %d\n", i);
STOP_TIMER("get_cabac_u")
    }

    for(i=0; i<SIZE; i++){
START_TIMER
        if( r[i] != get_cabac_ueg(&c, state, 3, 0, 1, 2))
            printf("CABAC unary (truncated) binarization failure at %d\n", i);
STOP_TIMER("get_cabac_ueg")
    }

    if(!get_cabac_terminate(&c))
        printf("where's the Terminator?\n");
    
    return 0;
}

示例#2

文件： cabac.c 项目： perfecthu/android_external_ffmpeg

int main(void) {
    CABACContext c;
    uint8_t b[9*SIZE];
    uint8_t r[9*SIZE];
    int i;
    uint8_t state[10]= {0};
    AVLFG prng;

    av_lfg_init(&prng, 1);
    ff_init_cabac_encoder(&c, b, SIZE);
    ff_init_cabac_states(&c);

    for(i=0; i<SIZE; i++) {
        r[i] = av_lfg_get(&prng) % 7;
    }

    for(i=0; i<SIZE; i++) {
        START_TIMER
        put_cabac_bypass(&c, r[i]&1);
        STOP_TIMER("put_cabac_bypass")
    }

    for(i=0; i<SIZE; i++) {
        START_TIMER
        put_cabac(&c, state, r[i]&1);
        STOP_TIMER("put_cabac")
    }

    for(i=0; i<SIZE; i++) {
        START_TIMER
        put_cabac_u(&c, state, r[i], 6, 3, i&1);
        STOP_TIMER("put_cabac_u")
    }

    for(i=0; i<SIZE; i++) {
        START_TIMER
        put_cabac_ueg(&c, state, r[i], 3, 0, 1, 2);
        STOP_TIMER("put_cabac_ueg")
    }

    put_cabac_terminate(&c, 1);

    ff_init_cabac_decoder(&c, b, SIZE);

    memset(state, 0, sizeof(state));

    for(i=0; i<SIZE; i++) {
        START_TIMER
        if( (r[i]&1) != get_cabac_bypass(&c) )
            av_log(NULL, AV_LOG_ERROR, "CABAC bypass failure at %d\n", i);
        STOP_TIMER("get_cabac_bypass")
    }

    for(i=0; i<SIZE; i++) {
        START_TIMER
        if( (r[i]&1) != get_cabac(&c, state) )
            av_log(NULL, AV_LOG_ERROR, "CABAC failure at %d\n", i);
        STOP_TIMER("get_cabac")
    }
#if 0
    for(i=0; i<SIZE; i++) {
        START_TIMER
        if( r[i] != get_cabac_u(&c, state, (i&1) ? 6 : 7, 3, i&1) )
            av_log(NULL, AV_LOG_ERROR, "CABAC unary (truncated) binarization failure at %d\n", i);
        STOP_TIMER("get_cabac_u")
    }

    for(i=0; i<SIZE; i++) {
        START_TIMER
        if( r[i] != get_cabac_ueg(&c, state, 3, 0, 1, 2))
            av_log(NULL, AV_LOG_ERROR, "CABAC unary (truncated) binarization failure at %d\n", i);
        STOP_TIMER("get_cabac_ueg")
    }
#endif
    if(!get_cabac_terminate(&c))
        av_log(NULL, AV_LOG_ERROR, "where's the Terminator?\n");

    return 0;
}