Ejemplos de ff_msmpeg4_decode_block en C++ (Cpp)

Ejemplo n.º 1

Archivo: wmv2dec.c Proyecto: hicks0074/freescale_omx_framework

static inline int wmv2_decode_inter_block(Wmv2Context *w, DCTELEM *block, int n, int cbp)
{
    MpegEncContext * const s= &w->s;
    static const int sub_cbp_table[3]= {2,3,1};
    int sub_cbp;

    if(!cbp)
    {
        s->block_last_index[n] = -1;

        return 0;
    }

    if(w->per_block_abt)
        w->abt_type= decode012(&s->gb);
#if 0
    if(w->per_block_abt)
        printf("B%d", w->abt_type);
#endif
    w->abt_type_table[n]= w->abt_type;

    if(w->abt_type)
    {
//        const uint8_t *scantable= w->abt_scantable[w->abt_type-1].permutated;
        const uint8_t *scantable= w->abt_scantable[w->abt_type-1].scantable;
//        const uint8_t *scantable= w->abt_type-1 ? w->abt_scantable[1].permutated : w->abt_scantable[0].scantable;

        sub_cbp= sub_cbp_table[ decode012(&s->gb) ];
//        printf("S%d", sub_cbp);

        if(sub_cbp&1)
        {
            if (ff_msmpeg4_decode_block(s, block, n, 1, scantable) < 0)
                return -1;
        }

        if(sub_cbp&2)
        {
            if (ff_msmpeg4_decode_block(s, w->abt_block2[n], n, 1, scantable) < 0)
                return -1;
        }
        s->block_last_index[n] = 63;

        return 0;
    }
    else
    {
        return ff_msmpeg4_decode_block(s, block, n, 1, s->inter_scantable.permutated);
    }
}

Ejemplo n.º 2

Archivo: wmv2dec.c Proyecto: 0myc/FFmpeg

static inline int wmv2_decode_inter_block(Wmv2Context *w, int16_t *block,
                                          int n, int cbp)
{
    MpegEncContext *const s = &w->s;
    static const int sub_cbp_table[3] = { 2, 3, 1 };
    int sub_cbp, ret;

    if (!cbp) {
        s->block_last_index[n] = -1;
        return 0;
    }

    if (w->per_block_abt)
        w->abt_type = decode012(&s->gb);
    w->abt_type_table[n] = w->abt_type;

    if (w->abt_type) {
//        const uint8_t *scantable = w->abt_scantable[w->abt_type - 1].permutated;
        const uint8_t *scantable = w->abt_scantable[w->abt_type - 1].scantable;
//        const uint8_t *scantable = w->abt_type - 1 ? w->abt_scantable[1].permutated : w->abt_scantable[0].scantable;

        sub_cbp = sub_cbp_table[decode012(&s->gb)];

        if (sub_cbp & 1)
            if ((ret = ff_msmpeg4_decode_block(s, block, n, 1, scantable)) < 0)
                return ret;

        if (sub_cbp & 2)
            if ((ret = ff_msmpeg4_decode_block(s, w->abt_block2[n], n, 1, scantable)) < 0)
                return ret;

        s->block_last_index[n] = 63;

        return 0;
    } else {
        return ff_msmpeg4_decode_block(s, block, n, 1,
                                       s->inter_scantable.permutated);
    }
}