Exemplos de put_rac em C++ (Cpp)

Exemplo n.º 1

Arquivo: rangecoder.c Projeto: 0myc/FFmpeg

int main(void)
{
    RangeCoder c;
    int i;
    uint8_t state[10];
    AVLFG prng;

    av_lfg_init(&prng, 1);

    ff_init_range_encoder(&c, b, SIZE);
    ff_build_rac_states(&c, (1LL << 32) / 20, 128 + 64 + 32 + 16);

    memset(state, 128, sizeof(state));

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

    for (i = 0; i < SIZE; i++)
        put_rac(&c, state, r[i] & 1);

    ff_rac_terminate(&c);

    ff_init_range_decoder(&c, b, SIZE);

    memset(state, 128, sizeof(state));

    for (i = 0; i < SIZE; i++)
        if ((r[i] & 1) != get_rac(&c, state)) {
            av_log(NULL, AV_LOG_ERROR, "rac failure at %d\n", i);
            return 1;
        }

    return 0;
}

Exemplo n.º 2

Arquivo: ffv1.c Projeto: BOTCrusher/sagetv

static inline void put_symbol_inline(RangeCoder *c, uint8_t *state, int v, int is_signed){
    int i;

    if(v){
        const int a= FFABS(v);
        const int e= av_log2(a);
        put_rac(c, state+0, 0);
        if(e<=9){
            for(i=0; i<e; i++){
                put_rac(c, state+1+i, 1);  //1..10
            }
            put_rac(c, state+1+i, 0);

            for(i=e-1; i>=0; i--){
                put_rac(c, state+22+i, (a>>i)&1); //22..31
            }

            if(is_signed)
                put_rac(c, state+11 + e, v < 0); //11..21
        }else{
            for(i=0; i<e; i++){
                put_rac(c, state+1+FFMIN(i,9), 1);  //1..10
            }
            put_rac(c, state+1+9, 0);

            for(i=e-1; i>=0; i--){
                put_rac(c, state+22+FFMIN(i,9), (a>>i)&1); //22..31
            }

            if(is_signed)
                put_rac(c, state+11 + 10, v < 0); //11..21
        }
    }else{

Exemplo n.º 3

Arquivo: ffv1enc.c Projeto: Britz/FFmpeg

static av_always_inline av_flatten void put_symbol_inline(RangeCoder *c,
                                                          uint8_t *state, int v,
                                                          int is_signed,
                                                          uint64_t rc_stat[256][2],
                                                          uint64_t rc_stat2[32][2])
{
    int i;

#define put_rac(C, S, B)                        \
    do {                                        \
        if (rc_stat) {                          \
            rc_stat[*(S)][B]++;                 \
            rc_stat2[(S) - state][B]++;         \
        }                                       \
        put_rac(C, S, B);                       \
    } while (0)

    if (v) {
        const int a = FFABS(v);
        const int e = av_log2(a);
        put_rac(c, state + 0, 0);
        if (e <= 9) {
            for (i = 0; i < e; i++)
                put_rac(c, state + 1 + i, 1);  // 1..10
            put_rac(c, state + 1 + i, 0);

            for (i = e - 1; i >= 0; i--)
                put_rac(c, state + 22 + i, (a >> i) & 1);  // 22..31

            if (is_signed)
                put_rac(c, state + 11 + e, v < 0);  // 11..21
        } else {
            for (i = 0; i < e; i++)
                put_rac(c, state + 1 + FFMIN(i, 9), 1);  // 1..10
            put_rac(c, state + 1 + 9, 0);

            for (i = e - 1; i >= 0; i--)
                put_rac(c, state + 22 + FFMIN(i, 9), (a >> i) & 1);  // 22..31

            if (is_signed)
                put_rac(c, state + 11 + 10, v < 0);  // 11..21
        }
    } else {

Exemplo n.º 4

Arquivo: rangecoder.c Projeto: AndyA/ffmbc

int main(void){
    RangeCoder 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_range_encoder(&c, b, SIZE);
    ff_build_rac_states(&c, 0.05*(1LL<<32), 128+64+32+16);

    memset(state, 128, sizeof(state));

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

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

    ff_rac_terminate(&c);

    ff_init_range_decoder(&c, b, SIZE);

    memset(state, 128, sizeof(state));

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

    return 0;
}