static inline int mpeg2_fast_decode_block_non_intra(MpegEncContext *s,

                                                    int16_t *block, int n)

{

    int level, i, j, run;

    RLTable *rl = &ff_rl_mpeg1;

    uint8_t * const scantable = s->intra_scantable.permutated;

    const int qscale          = s->qscale;

    OPEN_READER(re, &s->gb);

    i = -1;



    // special case for first coefficient, no need to add second VLC table

    UPDATE_CACHE(re, &s->gb);

    if (((int32_t)GET_CACHE(re, &s->gb)) < 0) {

        level = (3 * qscale) >> 1;

        if (GET_CACHE(re, &s->gb) & 0x40000000)

            level = -level;

        block[0] = level;

        i++;

        SKIP_BITS(re, &s->gb, 2);

        if (((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)

            goto end;

    }



    /* now quantify & encode AC coefficients */

    for (;;) {

        GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);



        if (level != 0) {

            i += run;

            check_scantable_index(s, i);

            j  = scantable[i];

            level = ((level * 2 + 1) * qscale) >> 1;

            level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);

            SKIP_BITS(re, &s->gb, 1);

        } else {

            /* escape */

            run = SHOW_UBITS(re, &s->gb, 6) + 1; LAST_SKIP_BITS(re, &s->gb, 6);

            UPDATE_CACHE(re, &s->gb);

            level = SHOW_SBITS(re, &s->gb, 12); SKIP_BITS(re, &s->gb, 12);



            i += run;

            check_scantable_index(s, i);

            j  = scantable[i];

            if (level < 0) {

                level = ((-level * 2 + 1) * qscale) >> 1;

                level = -level;

            } else {

                level = ((level * 2 + 1) * qscale) >> 1;

            }

        }



        block[j] = level;

        if (((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)

            break;



        UPDATE_CACHE(re, &s->gb);

    }

end:

    LAST_SKIP_BITS(re, &s->gb, 2);

    CLOSE_READER(re, &s->gb);

    s->block_last_index[n] = i;

    return 0;

}

static inline int mpeg2_fast_decode_block_non_intra(MpegEncContext *s,

                                                    int16_t *block, int n)

{

    int level, i, j, run;

    RLTable *rl = &ff_rl_mpeg1;

    uint8_t * const scantable = s->intra_scantable.permutated;

    const int qscale          = s->qscale;

    OPEN_READER(re, &s->gb);

    i = -1;



    

    UPDATE_CACHE(re, &s->gb);

    if (((int32_t)GET_CACHE(re, &s->gb)) < 0) {

        level = (3 * qscale) >> 1;

        if (GET_CACHE(re, &s->gb) & 0x40000000)

            level = -level;

        block[0] = level;

        i++;

        SKIP_BITS(re, &s->gb, 2);

        if (((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)

            goto end;

    }



    

    for (;;) {

        GET_RL_VLC(level, run, re, &s->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);



        if (level != 0) {

            i += run;

            check_scantable_index(s, i);

            j  = scantable[i];

            level = ((level * 2 + 1) * qscale) >> 1;

            level = (level ^ SHOW_SBITS(re, &s->gb, 1)) - SHOW_SBITS(re, &s->gb, 1);

            SKIP_BITS(re, &s->gb, 1);

        } else {

            

            run = SHOW_UBITS(re, &s->gb, 6) + 1; LAST_SKIP_BITS(re, &s->gb, 6);

            UPDATE_CACHE(re, &s->gb);

            level = SHOW_SBITS(re, &s->gb, 12); SKIP_BITS(re, &s->gb, 12);



            i += run;

            check_scantable_index(s, i);

            j  = scantable[i];

            if (level < 0) {

                level = ((-level * 2 + 1) * qscale) >> 1;

                level = -level;

            } else {

                level = ((level * 2 + 1) * qscale) >> 1;

            }

        }



        block[j] = level;

        if (((int32_t)GET_CACHE(re, &s->gb)) <= (int32_t)0xBFFFFFFF)

            break;



        UPDATE_CACHE(re, &s->gb);

    }

end:

    LAST_SKIP_BITS(re, &s->gb, 2);

    CLOSE_READER(re, &s->gb);

    s->block_last_index[n] = i;

    return 0;

}

static inline int FUNC_0(MpegEncContext *VAR_0,

                                                    int16_t *VAR_1, int VAR_2)

{

    int VAR_3, VAR_4, VAR_5, VAR_6;

    RLTable *rl = &ff_rl_mpeg1;

    uint8_t * const scantable = VAR_0->intra_scantable.permutated;

    const int VAR_7          = VAR_0->VAR_7;

    OPEN_READER(re, &VAR_0->gb);

    VAR_4 = -1;



    

    UPDATE_CACHE(re, &VAR_0->gb);

    if (((int32_t)GET_CACHE(re, &VAR_0->gb)) < 0) {

        VAR_3 = (3 * VAR_7) >> 1;

        if (GET_CACHE(re, &VAR_0->gb) & 0x40000000)

            VAR_3 = -VAR_3;

        VAR_1[0] = VAR_3;

        VAR_4++;

        SKIP_BITS(re, &VAR_0->gb, 2);

        if (((int32_t)GET_CACHE(re, &VAR_0->gb)) <= (int32_t)0xBFFFFFFF)

            goto end;

    }



    

    for (;;) {

        GET_RL_VLC(VAR_3, VAR_6, re, &VAR_0->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0);



        if (VAR_3 != 0) {

            VAR_4 += VAR_6;

            check_scantable_index(VAR_0, VAR_4);

            VAR_5  = scantable[VAR_4];

            VAR_3 = ((VAR_3 * 2 + 1) * VAR_7) >> 1;

            VAR_3 = (VAR_3 ^ SHOW_SBITS(re, &VAR_0->gb, 1)) - SHOW_SBITS(re, &VAR_0->gb, 1);

            SKIP_BITS(re, &VAR_0->gb, 1);

        } else {

            

            VAR_6 = SHOW_UBITS(re, &VAR_0->gb, 6) + 1; LAST_SKIP_BITS(re, &VAR_0->gb, 6);

            UPDATE_CACHE(re, &VAR_0->gb);

            VAR_3 = SHOW_SBITS(re, &VAR_0->gb, 12); SKIP_BITS(re, &VAR_0->gb, 12);



            VAR_4 += VAR_6;

            check_scantable_index(VAR_0, VAR_4);

            VAR_5  = scantable[VAR_4];

            if (VAR_3 < 0) {

                VAR_3 = ((-VAR_3 * 2 + 1) * VAR_7) >> 1;

                VAR_3 = -VAR_3;

            } else {

                VAR_3 = ((VAR_3 * 2 + 1) * VAR_7) >> 1;

            }

        }



        VAR_1[VAR_5] = VAR_3;

        if (((int32_t)GET_CACHE(re, &VAR_0->gb)) <= (int32_t)0xBFFFFFFF)

            break;



        UPDATE_CACHE(re, &VAR_0->gb);

    }

end:

    LAST_SKIP_BITS(re, &VAR_0->gb, 2);

    CLOSE_READER(re, &VAR_0->gb);

    VAR_0->block_last_index[VAR_2] = VAR_4;

    return 0;

}

static inline int FUNC_0(MpegEncContext *VAR_0,
int16_t *VAR_1, int VAR_2)
{ int VAR_3, VAR_4, VAR_5, VAR_6; RLTable *rl = &ff_rl_mpeg1; uint8_t * const scantable = VAR_0->intra_scantable.permutated; const int VAR_7          = VAR_0->VAR_7; OPEN_READER(re, &VAR_0->gb); VAR_4 = -1; UPDATE_CACHE(re, &VAR_0->gb); if (((int32_t)GET_CACHE(re, &VAR_0->gb)) < 0) { VAR_3 = (3 * VAR_7) >> 1; if (GET_CACHE(re, &VAR_0->gb) & 0x40000000)
VAR_3 = -VAR_3; VAR_1[0] = VAR_3; VAR_4++; SKIP_BITS(re, &VAR_0->gb, 2); if (((int32_t)GET_CACHE(re, &VAR_0->gb)) <= (int32_t)0xBFFFFFFF)
goto end; } for (;;) { GET_RL_VLC(VAR_3, VAR_6, re, &VAR_0->gb, rl->rl_vlc[0], TEX_VLC_BITS, 2, 0); if (VAR_3 != 0) { VAR_4 += VAR_6; check_scantable_index(VAR_0, VAR_4); VAR_5  = scantable[VAR_4]; VAR_3 = ((VAR_3 * 2 + 1) * VAR_7) >> 1; VAR_3 = (VAR_3 ^ SHOW_SBITS(re, &VAR_0->gb, 1)) - SHOW_SBITS(re, &VAR_0->gb, 1); SKIP_BITS(re, &VAR_0->gb, 1); } else { VAR_6 = SHOW_UBITS(re, &VAR_0->gb, 6) + 1; LAST_SKIP_BITS(re, &VAR_0->gb, 6); UPDATE_CACHE(re, &VAR_0->gb); VAR_3 = SHOW_SBITS(re, &VAR_0->gb, 12); SKIP_BITS(re, &VAR_0->gb, 12); VAR_4 += VAR_6; check_scantable_index(VAR_0, VAR_4); VAR_5  = scantable[VAR_4]; if (VAR_3 < 0) { VAR_3 = ((-VAR_3 * 2 + 1) * VAR_7) >> 1; VAR_3 = -VAR_3; } else { VAR_3 = ((VAR_3 * 2 + 1) * VAR_7) >> 1; } } VAR_1[VAR_5] = VAR_3; if (((int32_t)GET_CACHE(re, &VAR_0->gb)) <= (int32_t)0xBFFFFFFF)
break; UPDATE_CACHE(re, &VAR_0->gb); } end:
LAST_SKIP_BITS(re, &VAR_0->gb, 2); CLOSE_READER(re, &VAR_0->gb); VAR_0->block_last_index[VAR_2] = VAR_4; return 0; }