Пример #1
0
/* XXX: find a better solution to handle static init */
void ff_h263_decode_init_vlc(void)
{
    static volatile int done = 0;

    if (!done) {
        INIT_VLC_STATIC(&ff_h263_intra_MCBPC_vlc, INTRA_MCBPC_VLC_BITS, 9,
                 ff_h263_intra_MCBPC_bits, 1, 1,
                 ff_h263_intra_MCBPC_code, 1, 1, 72);
        INIT_VLC_STATIC(&ff_h263_inter_MCBPC_vlc, INTER_MCBPC_VLC_BITS, 28,
                 ff_h263_inter_MCBPC_bits, 1, 1,
                 ff_h263_inter_MCBPC_code, 1, 1, 198);
        INIT_VLC_STATIC(&ff_h263_cbpy_vlc, CBPY_VLC_BITS, 16,
                 &ff_h263_cbpy_tab[0][1], 2, 1,
                 &ff_h263_cbpy_tab[0][0], 2, 1, 64);
        INIT_VLC_STATIC(&mv_vlc, MV_VLC_BITS, 33,
                 &ff_mvtab[0][1], 2, 1,
                 &ff_mvtab[0][0], 2, 1, 538);
        ff_init_rl(&ff_h263_rl_inter, ff_h263_static_rl_table_store[0]);
        ff_init_rl(&ff_rl_intra_aic, ff_h263_static_rl_table_store[1]);
        INIT_VLC_RL(ff_h263_rl_inter, 554);
        INIT_VLC_RL(ff_rl_intra_aic, 554);
        INIT_VLC_STATIC(&h263_mbtype_b_vlc, H263_MBTYPE_B_VLC_BITS, 15,
                 &ff_h263_mbtype_b_tab[0][1], 2, 1,
                 &ff_h263_mbtype_b_tab[0][0], 2, 1, 80);
        INIT_VLC_STATIC(&cbpc_b_vlc, CBPC_B_VLC_BITS, 4,
                 &ff_cbpc_b_tab[0][1], 2, 1,
                 &ff_cbpc_b_tab[0][0], 2, 1, 8);
        done = 1;
    }
}
Пример #2
0
av_cold void ff_mpeg12_init_vlcs(void)
{
    static int done = 0;

    if (!done) {
        done = 1;

        INIT_VLC_STATIC(&ff_dc_lum_vlc, DC_VLC_BITS, 12,
                        ff_mpeg12_vlc_dc_lum_bits, 1, 1,
                        ff_mpeg12_vlc_dc_lum_code, 2, 2, 512);
        INIT_VLC_STATIC(&ff_dc_chroma_vlc,  DC_VLC_BITS, 12,
                        ff_mpeg12_vlc_dc_chroma_bits, 1, 1,
                        ff_mpeg12_vlc_dc_chroma_code, 2, 2, 514);
        INIT_VLC_STATIC(&ff_mv_vlc, MV_VLC_BITS, 17,
                        &ff_mpeg12_mbMotionVectorTable[0][1], 2, 1,
                        &ff_mpeg12_mbMotionVectorTable[0][0], 2, 1, 518);
        INIT_VLC_STATIC(&ff_mbincr_vlc, MBINCR_VLC_BITS, 36,
                        &ff_mpeg12_mbAddrIncrTable[0][1], 2, 1,
                        &ff_mpeg12_mbAddrIncrTable[0][0], 2, 1, 538);
        INIT_VLC_STATIC(&ff_mb_pat_vlc, MB_PAT_VLC_BITS, 64,
                        &ff_mpeg12_mbPatTable[0][1], 2, 1,
                        &ff_mpeg12_mbPatTable[0][0], 2, 1, 512);

        INIT_VLC_STATIC(&ff_mb_ptype_vlc, MB_PTYPE_VLC_BITS, 7,
                        &table_mb_ptype[0][1], 2, 1,
                        &table_mb_ptype[0][0], 2, 1, 64);
        INIT_VLC_STATIC(&ff_mb_btype_vlc, MB_BTYPE_VLC_BITS, 11,
                        &table_mb_btype[0][1], 2, 1,
                        &table_mb_btype[0][0], 2, 1, 64);
        ff_init_rl(&ff_rl_mpeg1, ff_mpeg12_static_rl_table_store[0]);
        ff_init_rl(&ff_rl_mpeg2, ff_mpeg12_static_rl_table_store[1]);

        INIT_2D_VLC_RL(ff_rl_mpeg1, 680);
        INIT_2D_VLC_RL(ff_rl_mpeg2, 674);
    }
}
Пример #3
0
static av_cold void h261_decode_init_vlc(H261Context *h){
    static int done = 0;

    if(!done){
        done = 1;
        INIT_VLC_STATIC(&h261_mba_vlc, H261_MBA_VLC_BITS, 35,
                 h261_mba_bits, 1, 1,
                 h261_mba_code, 1, 1, 662);
        INIT_VLC_STATIC(&h261_mtype_vlc, H261_MTYPE_VLC_BITS, 10,
                 h261_mtype_bits, 1, 1,
                 h261_mtype_code, 1, 1, 80);
        INIT_VLC_STATIC(&h261_mv_vlc, H261_MV_VLC_BITS, 17,
                 &h261_mv_tab[0][1], 2, 1,
                 &h261_mv_tab[0][0], 2, 1, 144);
        INIT_VLC_STATIC(&h261_cbp_vlc, H261_CBP_VLC_BITS, 63,
                 &h261_cbp_tab[0][1], 2, 1,
                 &h261_cbp_tab[0][0], 2, 1, 512);
        ff_init_rl(&h261_rl_tcoeff, ff_h261_rl_table_store);
        INIT_VLC_RL(h261_rl_tcoeff, 552);
    }
}