int ff_wma_init(AVCodecContext *avctx, int flags2)

{

    WMACodecContext *s = avctx->priv_data;

    int i;

    float bps1, high_freq;

    volatile float bps;

    int sample_rate1;

    int coef_vlc_table;



    if (   avctx->sample_rate <= 0 || avctx->sample_rate > 50000

        || avctx->channels    <= 0 || avctx->channels    > 2

        || avctx->bit_rate    <= 0)

        return -1;



    ff_fmt_convert_init(&s->fmt_conv, avctx);

    avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);



    if (avctx->codec->id == AV_CODEC_ID_WMAV1) {

        s->version = 1;

    } else {

        s->version = 2;




    /* compute MDCT block size */

    s->frame_len_bits = ff_wma_get_frame_len_bits(avctx->sample_rate,

                                                  s->version, 0);

    s->next_block_len_bits = s->frame_len_bits;

    s->prev_block_len_bits = s->frame_len_bits;

    s->block_len_bits      = s->frame_len_bits;



    s->frame_len = 1 << s->frame_len_bits;

    if (s->use_variable_block_len) {

        int nb_max, nb;

        nb = ((flags2 >> 3) & 3) + 1;

        if ((avctx->bit_rate / avctx->channels) >= 32000)

            nb += 2;

        nb_max = s->frame_len_bits - BLOCK_MIN_BITS;

        if (nb > nb_max)

            nb = nb_max;

        s->nb_block_sizes = nb + 1;

    } else {

        s->nb_block_sizes = 1;




    /* init rate dependent parameters */

    s->use_noise_coding = 1;

    high_freq = avctx->sample_rate * 0.5;



    /* if version 2, then the rates are normalized */

    sample_rate1 = avctx->sample_rate;

    if (s->version == 2) {

        if (sample_rate1 >= 44100) {

            sample_rate1 = 44100;

        } else if (sample_rate1 >= 22050) {

            sample_rate1 = 22050;

        } else if (sample_rate1 >= 16000) {

            sample_rate1 = 16000;

        } else if (sample_rate1 >= 11025) {

            sample_rate1 = 11025;

        } else if (sample_rate1 >= 8000) {

            sample_rate1 = 8000;





    bps = (float)avctx->bit_rate / (float)(avctx->channels * avctx->sample_rate);

    s->byte_offset_bits = av_log2((int)(bps * s->frame_len / 8.0 + 0.5)) + 2;







    /* compute high frequency value and choose if noise coding should

       be activated */

    bps1 = bps;

    if (avctx->channels == 2)

        bps1 = bps * 1.6;

    if (sample_rate1 == 44100) {

        if (bps1 >= 0.61) {

            s->use_noise_coding = 0;

        } else {

            high_freq = high_freq * 0.4;


    } else if (sample_rate1 == 22050) {

        if (bps1 >= 1.16) {

            s->use_noise_coding = 0;

        } else if (bps1 >= 0.72) {

            high_freq = high_freq * 0.7;

        } else {

            high_freq = high_freq * 0.6;


    } else if (sample_rate1 == 16000) {

        if (bps > 0.5) {

            high_freq = high_freq * 0.5;

        } else {

            high_freq = high_freq * 0.3;


    } else if (sample_rate1 == 11025) {

        high_freq = high_freq * 0.7;

    } else if (sample_rate1 == 8000) {

        if (bps <= 0.625) {

            high_freq = high_freq * 0.5;

        } else if (bps > 0.75) {

            s->use_noise_coding = 0;

        } else {

            high_freq = high_freq * 0.65;


    } else {

        if (bps >= 0.8) {

            high_freq = high_freq * 0.75;

        } else if (bps >= 0.6) {

            high_freq = high_freq * 0.6;

        } else {

            high_freq = high_freq * 0.5;



    av_dlog(s->avctx, "flags2=0x%x\n", flags2);

    av_dlog(s->avctx, "version=%d channels=%d sample_rate=%d bitrate=%d block_align=%d\n",

            s->version, avctx->channels, avctx->sample_rate, avctx->bit_rate,

            avctx->block_align);

    av_dlog(s->avctx, "bps=%f bps1=%f high_freq=%f bitoffset=%d\n",

            bps, bps1, high_freq, s->byte_offset_bits);

    av_dlog(s->avctx, "use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\n",

            s->use_noise_coding, s->use_exp_vlc, s->nb_block_sizes);



    /* compute the scale factor band sizes for each MDCT block size */

    {

        int a, b, pos, lpos, k, block_len, i, j, n;

        const uint8_t *table;



        if (s->version == 1) {

            s->coefs_start = 3;

        } else {

            s->coefs_start = 0;


        for (k = 0; k < s->nb_block_sizes; k++) {

            block_len = s->frame_len >> k;



            if (s->version == 1) {

                lpos = 0;

                for (i = 0; i < 25; i++) {

                    a = ff_wma_critical_freqs[i];

                    b = avctx->sample_rate;

                    pos = ((block_len * 2 * a) + (b >> 1)) / b;

                    if (pos > block_len)

                        pos = block_len;

                    s->exponent_bands[0][i] = pos - lpos;

                    if (pos >= block_len) {

                        i++;

                        break;


                    lpos = pos;


                s->exponent_sizes[0] = i;

            } else {

                /* hardcoded tables */

                table = NULL;

                a = s->frame_len_bits - BLOCK_MIN_BITS - k;

                if (a < 3) {

                    if (avctx->sample_rate >= 44100) {

                        table = exponent_band_44100[a];

                    } else if (avctx->sample_rate >= 32000) {

                        table = exponent_band_32000[a];

                    } else if (avctx->sample_rate >= 22050) {

                        table = exponent_band_22050[a];



                if (table) {

                    n = *table++;

                    for (i = 0; i < n; i++)

                        s->exponent_bands[k][i] = table[i];

                    s->exponent_sizes[k] = n;

                } else {

                    j = 0;

                    lpos = 0;

                    for (i = 0; i < 25; i++) {

                        a = ff_wma_critical_freqs[i];

                        b = avctx->sample_rate;

                        pos = ((block_len * 2 * a) + (b << 1)) / (4 * b);

                        pos <<= 2;

                        if (pos > block_len)

                            pos = block_len;

                        if (pos > lpos)

                            s->exponent_bands[k][j++] = pos - lpos;

                        if (pos >= block_len)

                            break;

                        lpos = pos;


                    s->exponent_sizes[k] = j;





            /* max number of coefs */

            s->coefs_end[k] = (s->frame_len - ((s->frame_len * 9) / 100)) >> k;

            /* high freq computation */

            s->high_band_start[k] = (int)((block_len * 2 * high_freq) /

                                          avctx->sample_rate + 0.5);

            n = s->exponent_sizes[k];

            j = 0;

            pos = 0;

            for (i = 0; i < n; i++) {

                int start, end;

                start = pos;

                pos += s->exponent_bands[k][i];

                end = pos;

                if (start < s->high_band_start[k])

                    start = s->high_band_start[k];

                if (end > s->coefs_end[k])

                    end = s->coefs_end[k];

                if (end > start)

                    s->exponent_high_bands[k][j++] = end - start;


            s->exponent_high_sizes[k] = j;

#if 0

            tprintf(s->avctx, "%5d: coefs_end=%d high_band_start=%d nb_high_bands=%d: ",

                    s->frame_len >> k,

                    s->coefs_end[k],

                    s->high_band_start[k],

                    s->exponent_high_sizes[k]);

            for (j = 0; j < s->exponent_high_sizes[k]; j++)

                tprintf(s->avctx, " %d", s->exponent_high_bands[k][j]);

            tprintf(s->avctx, "\n");

#endif





#ifdef TRACE

    {

        int i, j;

        for (i = 0; i < s->nb_block_sizes; i++) {

            tprintf(s->avctx, "%5d: n=%2d:",

                    s->frame_len >> i,

                    s->exponent_sizes[i]);

            for (j = 0; j < s->exponent_sizes[i]; j++)

                tprintf(s->avctx, " %d", s->exponent_bands[i][j]);

            tprintf(s->avctx, "\n");



#endif



    /* init MDCT windows : simple sinus window */

    for (i = 0; i < s->nb_block_sizes; i++) {

        ff_init_ff_sine_windows(s->frame_len_bits - i);

        s->windows[i] = ff_sine_windows[s->frame_len_bits - i];




    s->reset_block_lengths = 1;



    if (s->use_noise_coding) {



        /* init the noise generator */

        if (s->use_exp_vlc) {

            s->noise_mult = 0.02;

        } else {

            s->noise_mult = 0.04;




#ifdef TRACE

        for (i = 0; i < NOISE_TAB_SIZE; i++)

            s->noise_table[i] = 1.0 * s->noise_mult;

#else

        {

            unsigned int seed;

            float norm;

            seed = 1;

            norm = (1.0 / (float)(1LL << 31)) * sqrt(3) * s->noise_mult;

            for (i = 0; i < NOISE_TAB_SIZE; i++) {

                seed = seed * 314159 + 1;

                s->noise_table[i] = (float)((int)seed) * norm;



#endif




    /* choose the VLC tables for the coefficients */

    coef_vlc_table = 2;

    if (avctx->sample_rate >= 32000) {

        if (bps1 < 0.72) {

            coef_vlc_table = 0;

        } else if (bps1 < 1.16) {

            coef_vlc_table = 1;



    s->coef_vlcs[0]= &coef_vlcs[coef_vlc_table * 2    ];

    s->coef_vlcs[1]= &coef_vlcs[coef_vlc_table * 2 + 1];

    init_coef_vlc(&s->coef_vlc[0], &s->run_table[0], &s->level_table[0], &s->int_table[0],

                  s->coef_vlcs[0]);

    init_coef_vlc(&s->coef_vlc[1], &s->run_table[1], &s->level_table[1], &s->int_table[1],

                  s->coef_vlcs[1]);



    return 0;

int ff_wma_init(AVCodecContext *avctx, int flags2)

{

    WMACodecContext *s = avctx->priv_data;

    int i;

    float bps1, high_freq;

    volatile float bps;

    int sample_rate1;

    int coef_vlc_table;



    if (   avctx->sample_rate <= 0 || avctx->sample_rate > 50000

        || avctx->channels    <= 0 || avctx->channels    > 2

        || avctx->bit_rate    <= 0)

        return -1;



    ff_fmt_convert_init(&s->fmt_conv, avctx);

    avpriv_float_dsp_init(&s->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);



    if (avctx->codec->id == AV_CODEC_ID_WMAV1) {

        s->version = 1;

    } else {

        s->version = 2;




    

    s->frame_len_bits = ff_wma_get_frame_len_bits(avctx->sample_rate,

                                                  s->version, 0);

    s->next_block_len_bits = s->frame_len_bits;

    s->prev_block_len_bits = s->frame_len_bits;

    s->block_len_bits      = s->frame_len_bits;



    s->frame_len = 1 << s->frame_len_bits;

    if (s->use_variable_block_len) {

        int nb_max, nb;

        nb = ((flags2 >> 3) & 3) + 1;

        if ((avctx->bit_rate / avctx->channels) >= 32000)

            nb += 2;

        nb_max = s->frame_len_bits - BLOCK_MIN_BITS;

        if (nb > nb_max)

            nb = nb_max;

        s->nb_block_sizes = nb + 1;

    } else {

        s->nb_block_sizes = 1;




    

    s->use_noise_coding = 1;

    high_freq = avctx->sample_rate * 0.5;



    

    sample_rate1 = avctx->sample_rate;

    if (s->version == 2) {

        if (sample_rate1 >= 44100) {

            sample_rate1 = 44100;

        } else if (sample_rate1 >= 22050) {

            sample_rate1 = 22050;

        } else if (sample_rate1 >= 16000) {

            sample_rate1 = 16000;

        } else if (sample_rate1 >= 11025) {

            sample_rate1 = 11025;

        } else if (sample_rate1 >= 8000) {

            sample_rate1 = 8000;





    bps = (float)avctx->bit_rate / (float)(avctx->channels * avctx->sample_rate);

    s->byte_offset_bits = av_log2((int)(bps * s->frame_len / 8.0 + 0.5)) + 2;







    



    bps1 = bps;

    if (avctx->channels == 2)

        bps1 = bps * 1.6;

    if (sample_rate1 == 44100) {

        if (bps1 >= 0.61) {

            s->use_noise_coding = 0;

        } else {

            high_freq = high_freq * 0.4;


    } else if (sample_rate1 == 22050) {

        if (bps1 >= 1.16) {

            s->use_noise_coding = 0;

        } else if (bps1 >= 0.72) {

            high_freq = high_freq * 0.7;

        } else {

            high_freq = high_freq * 0.6;


    } else if (sample_rate1 == 16000) {

        if (bps > 0.5) {

            high_freq = high_freq * 0.5;

        } else {

            high_freq = high_freq * 0.3;


    } else if (sample_rate1 == 11025) {

        high_freq = high_freq * 0.7;

    } else if (sample_rate1 == 8000) {

        if (bps <= 0.625) {

            high_freq = high_freq * 0.5;

        } else if (bps > 0.75) {

            s->use_noise_coding = 0;

        } else {

            high_freq = high_freq * 0.65;


    } else {

        if (bps >= 0.8) {

            high_freq = high_freq * 0.75;

        } else if (bps >= 0.6) {

            high_freq = high_freq * 0.6;

        } else {

            high_freq = high_freq * 0.5;



    av_dlog(s->avctx, "flags2=0x%x\n", flags2);

    av_dlog(s->avctx, "version=%d channels=%d sample_rate=%d bitrate=%d block_align=%d\n",

            s->version, avctx->channels, avctx->sample_rate, avctx->bit_rate,

            avctx->block_align);

    av_dlog(s->avctx, "bps=%f bps1=%f high_freq=%f bitoffset=%d\n",

            bps, bps1, high_freq, s->byte_offset_bits);

    av_dlog(s->avctx, "use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\n",

            s->use_noise_coding, s->use_exp_vlc, s->nb_block_sizes);



    

    {

        int a, b, pos, lpos, k, block_len, i, j, n;

        const uint8_t *table;



        if (s->version == 1) {

            s->coefs_start = 3;

        } else {

            s->coefs_start = 0;


        for (k = 0; k < s->nb_block_sizes; k++) {

            block_len = s->frame_len >> k;



            if (s->version == 1) {

                lpos = 0;

                for (i = 0; i < 25; i++) {

                    a = ff_wma_critical_freqs[i];

                    b = avctx->sample_rate;

                    pos = ((block_len * 2 * a) + (b >> 1)) / b;

                    if (pos > block_len)

                        pos = block_len;

                    s->exponent_bands[0][i] = pos - lpos;

                    if (pos >= block_len) {

                        i++;

                        break;


                    lpos = pos;


                s->exponent_sizes[0] = i;

            } else {

                

                table = NULL;

                a = s->frame_len_bits - BLOCK_MIN_BITS - k;

                if (a < 3) {

                    if (avctx->sample_rate >= 44100) {

                        table = exponent_band_44100[a];

                    } else if (avctx->sample_rate >= 32000) {

                        table = exponent_band_32000[a];

                    } else if (avctx->sample_rate >= 22050) {

                        table = exponent_band_22050[a];



                if (table) {

                    n = *table++;

                    for (i = 0; i < n; i++)

                        s->exponent_bands[k][i] = table[i];

                    s->exponent_sizes[k] = n;

                } else {

                    j = 0;

                    lpos = 0;

                    for (i = 0; i < 25; i++) {

                        a = ff_wma_critical_freqs[i];

                        b = avctx->sample_rate;

                        pos = ((block_len * 2 * a) + (b << 1)) / (4 * b);

                        pos <<= 2;

                        if (pos > block_len)

                            pos = block_len;

                        if (pos > lpos)

                            s->exponent_bands[k][j++] = pos - lpos;

                        if (pos >= block_len)

                            break;

                        lpos = pos;


                    s->exponent_sizes[k] = j;





            

            s->coefs_end[k] = (s->frame_len - ((s->frame_len * 9) / 100)) >> k;

            

            s->high_band_start[k] = (int)((block_len * 2 * high_freq) /

                                          avctx->sample_rate + 0.5);

            n = s->exponent_sizes[k];

            j = 0;

            pos = 0;

            for (i = 0; i < n; i++) {

                int start, end;

                start = pos;

                pos += s->exponent_bands[k][i];

                end = pos;

                if (start < s->high_band_start[k])

                    start = s->high_band_start[k];

                if (end > s->coefs_end[k])

                    end = s->coefs_end[k];

                if (end > start)

                    s->exponent_high_bands[k][j++] = end - start;


            s->exponent_high_sizes[k] = j;

#if 0

            tprintf(s->avctx, "%5d: coefs_end=%d high_band_start=%d nb_high_bands=%d: ",

                    s->frame_len >> k,

                    s->coefs_end[k],

                    s->high_band_start[k],

                    s->exponent_high_sizes[k]);

            for (j = 0; j < s->exponent_high_sizes[k]; j++)

                tprintf(s->avctx, " %d", s->exponent_high_bands[k][j]);

            tprintf(s->avctx, "\n");

#endif





#ifdef TRACE

    {

        int i, j;

        for (i = 0; i < s->nb_block_sizes; i++) {

            tprintf(s->avctx, "%5d: n=%2d:",

                    s->frame_len >> i,

                    s->exponent_sizes[i]);

            for (j = 0; j < s->exponent_sizes[i]; j++)

                tprintf(s->avctx, " %d", s->exponent_bands[i][j]);

            tprintf(s->avctx, "\n");



#endif



    

    for (i = 0; i < s->nb_block_sizes; i++) {

        ff_init_ff_sine_windows(s->frame_len_bits - i);

        s->windows[i] = ff_sine_windows[s->frame_len_bits - i];




    s->reset_block_lengths = 1;



    if (s->use_noise_coding) {



        

        if (s->use_exp_vlc) {

            s->noise_mult = 0.02;

        } else {

            s->noise_mult = 0.04;




#ifdef TRACE

        for (i = 0; i < NOISE_TAB_SIZE; i++)

            s->noise_table[i] = 1.0 * s->noise_mult;

#else

        {

            unsigned int seed;

            float norm;

            seed = 1;

            norm = (1.0 / (float)(1LL << 31)) * sqrt(3) * s->noise_mult;

            for (i = 0; i < NOISE_TAB_SIZE; i++) {

                seed = seed * 314159 + 1;

                s->noise_table[i] = (float)((int)seed) * norm;



#endif




    

    coef_vlc_table = 2;

    if (avctx->sample_rate >= 32000) {

        if (bps1 < 0.72) {

            coef_vlc_table = 0;

        } else if (bps1 < 1.16) {

            coef_vlc_table = 1;



    s->coef_vlcs[0]= &coef_vlcs[coef_vlc_table * 2    ];

    s->coef_vlcs[1]= &coef_vlcs[coef_vlc_table * 2 + 1];

    init_coef_vlc(&s->coef_vlc[0], &s->run_table[0], &s->level_table[0], &s->int_table[0],

                  s->coef_vlcs[0]);

    init_coef_vlc(&s->coef_vlc[1], &s->run_table[1], &s->level_table[1], &s->int_table[1],

                  s->coef_vlcs[1]);



    return 0;

int FUNC_0(AVCodecContext *VAR_0, int VAR_1)

{

    WMACodecContext *s = VAR_0->priv_data;

    int VAR_2;

    float VAR_3, VAR_4;

    volatile float VAR_5;

    int VAR_6;

    int VAR_7;



    if (   VAR_0->sample_rate <= 0 || VAR_0->sample_rate > 50000

        || VAR_0->channels    <= 0 || VAR_0->channels    > 2

        || VAR_0->bit_rate    <= 0)

        return -1;



    ff_fmt_convert_init(&s->fmt_conv, VAR_0);

    avpriv_float_dsp_init(&s->fdsp, VAR_0->flags & CODEC_FLAG_BITEXACT);



    if (VAR_0->codec->id == AV_CODEC_ID_WMAV1) {

        s->version = 1;

    } else {

        s->version = 2;




    

    s->frame_len_bits = ff_wma_get_frame_len_bits(VAR_0->sample_rate,

                                                  s->version, 0);

    s->next_block_len_bits = s->frame_len_bits;

    s->prev_block_len_bits = s->frame_len_bits;

    s->block_len_bits      = s->frame_len_bits;



    s->frame_len = 1 << s->frame_len_bits;

    if (s->use_variable_block_len) {

        int VAR_8, VAR_9;

        VAR_9 = ((VAR_1 >> 3) & 3) + 1;

        if ((VAR_0->bit_rate / VAR_0->channels) >= 32000)

            VAR_9 += 2;

        VAR_8 = s->frame_len_bits - BLOCK_MIN_BITS;

        if (VAR_9 > VAR_8)

            VAR_9 = VAR_8;

        s->nb_block_sizes = VAR_9 + 1;

    } else {

        s->nb_block_sizes = 1;




    

    s->use_noise_coding = 1;

    VAR_4 = VAR_0->sample_rate * 0.5;



    

    VAR_6 = VAR_0->sample_rate;

    if (s->version == 2) {

        if (VAR_6 >= 44100) {

            VAR_6 = 44100;

        } else if (VAR_6 >= 22050) {

            VAR_6 = 22050;

        } else if (VAR_6 >= 16000) {

            VAR_6 = 16000;

        } else if (VAR_6 >= 11025) {

            VAR_6 = 11025;

        } else if (VAR_6 >= 8000) {

            VAR_6 = 8000;





    VAR_5 = (float)VAR_0->bit_rate / (float)(VAR_0->channels * VAR_0->sample_rate);

    s->byte_offset_bits = av_log2((int)(VAR_5 * s->frame_len / 8.0 + 0.5)) + 2;







    



    VAR_3 = VAR_5;

    if (VAR_0->channels == 2)

        VAR_3 = VAR_5 * 1.6;

    if (VAR_6 == 44100) {

        if (VAR_3 >= 0.61) {

            s->use_noise_coding = 0;

        } else {

            VAR_4 = VAR_4 * 0.4;


    } else if (VAR_6 == 22050) {

        if (VAR_3 >= 1.16) {

            s->use_noise_coding = 0;

        } else if (VAR_3 >= 0.72) {

            VAR_4 = VAR_4 * 0.7;

        } else {

            VAR_4 = VAR_4 * 0.6;


    } else if (VAR_6 == 16000) {

        if (VAR_5 > 0.5) {

            VAR_4 = VAR_4 * 0.5;

        } else {

            VAR_4 = VAR_4 * 0.3;


    } else if (VAR_6 == 11025) {

        VAR_4 = VAR_4 * 0.7;

    } else if (VAR_6 == 8000) {

        if (VAR_5 <= 0.625) {

            VAR_4 = VAR_4 * 0.5;

        } else if (VAR_5 > 0.75) {

            s->use_noise_coding = 0;

        } else {

            VAR_4 = VAR_4 * 0.65;


    } else {

        if (VAR_5 >= 0.8) {

            VAR_4 = VAR_4 * 0.75;

        } else if (VAR_5 >= 0.6) {

            VAR_4 = VAR_4 * 0.6;

        } else {

            VAR_4 = VAR_4 * 0.5;



    av_dlog(s->VAR_0, "VAR_1=0x%x\n", VAR_1);

    av_dlog(s->VAR_0, "version=%d channels=%d sample_rate=%d bitrate=%d block_align=%d\n",

            s->version, VAR_0->channels, VAR_0->sample_rate, VAR_0->bit_rate,

            VAR_0->block_align);

    av_dlog(s->VAR_0, "VAR_5=%f VAR_3=%f VAR_4=%f bitoffset=%d\n",

            VAR_5, VAR_3, VAR_4, s->byte_offset_bits);

    av_dlog(s->VAR_0, "use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\n",

            s->use_noise_coding, s->use_exp_vlc, s->nb_block_sizes);



    

    {

        int a, b, pos, lpos, k, block_len, VAR_2, j, n;

        const uint8_t *table;



        if (s->version == 1) {

            s->coefs_start = 3;

        } else {

            s->coefs_start = 0;


        for (k = 0; k < s->nb_block_sizes; k++) {

            block_len = s->frame_len >> k;



            if (s->version == 1) {

                lpos = 0;

                for (VAR_2 = 0; VAR_2 < 25; VAR_2++) {

                    a = ff_wma_critical_freqs[VAR_2];

                    b = VAR_0->sample_rate;

                    pos = ((block_len * 2 * a) + (b >> 1)) / b;

                    if (pos > block_len)

                        pos = block_len;

                    s->exponent_bands[0][VAR_2] = pos - lpos;

                    if (pos >= block_len) {

                        VAR_2++;

                        break;


                    lpos = pos;


                s->exponent_sizes[0] = VAR_2;

            } else {

                

                table = NULL;

                a = s->frame_len_bits - BLOCK_MIN_BITS - k;

                if (a < 3) {

                    if (VAR_0->sample_rate >= 44100) {

                        table = exponent_band_44100[a];

                    } else if (VAR_0->sample_rate >= 32000) {

                        table = exponent_band_32000[a];

                    } else if (VAR_0->sample_rate >= 22050) {

                        table = exponent_band_22050[a];



                if (table) {

                    n = *table++;

                    for (VAR_2 = 0; VAR_2 < n; VAR_2++)

                        s->exponent_bands[k][VAR_2] = table[VAR_2];

                    s->exponent_sizes[k] = n;

                } else {

                    j = 0;

                    lpos = 0;

                    for (VAR_2 = 0; VAR_2 < 25; VAR_2++) {

                        a = ff_wma_critical_freqs[VAR_2];

                        b = VAR_0->sample_rate;

                        pos = ((block_len * 2 * a) + (b << 1)) / (4 * b);

                        pos <<= 2;

                        if (pos > block_len)

                            pos = block_len;

                        if (pos > lpos)

                            s->exponent_bands[k][j++] = pos - lpos;

                        if (pos >= block_len)

                            break;

                        lpos = pos;


                    s->exponent_sizes[k] = j;





            

            s->coefs_end[k] = (s->frame_len - ((s->frame_len * 9) / 100)) >> k;

            

            s->high_band_start[k] = (int)((block_len * 2 * VAR_4) /

                                          VAR_0->sample_rate + 0.5);

            n = s->exponent_sizes[k];

            j = 0;

            pos = 0;

            for (VAR_2 = 0; VAR_2 < n; VAR_2++) {

                int start, end;

                start = pos;

                pos += s->exponent_bands[k][VAR_2];

                end = pos;

                if (start < s->high_band_start[k])

                    start = s->high_band_start[k];

                if (end > s->coefs_end[k])

                    end = s->coefs_end[k];

                if (end > start)

                    s->exponent_high_bands[k][j++] = end - start;


            s->exponent_high_sizes[k] = j;

#if 0

            tprintf(s->VAR_0, "%5d: coefs_end=%d high_band_start=%d nb_high_bands=%d: ",

                    s->frame_len >> k,

                    s->coefs_end[k],

                    s->high_band_start[k],

                    s->exponent_high_sizes[k]);

            for (j = 0; j < s->exponent_high_sizes[k]; j++)

                tprintf(s->VAR_0, " %d", s->exponent_high_bands[k][j]);

            tprintf(s->VAR_0, "\n");

#endif





#ifdef TRACE

    {

        int VAR_2, j;

        for (VAR_2 = 0; VAR_2 < s->nb_block_sizes; VAR_2++) {

            tprintf(s->VAR_0, "%5d: n=%2d:",

                    s->frame_len >> VAR_2,

                    s->exponent_sizes[VAR_2]);

            for (j = 0; j < s->exponent_sizes[VAR_2]; j++)

                tprintf(s->VAR_0, " %d", s->exponent_bands[VAR_2][j]);

            tprintf(s->VAR_0, "\n");



#endif



    

    for (VAR_2 = 0; VAR_2 < s->nb_block_sizes; VAR_2++) {

        ff_init_ff_sine_windows(s->frame_len_bits - VAR_2);

        s->windows[VAR_2] = ff_sine_windows[s->frame_len_bits - VAR_2];




    s->reset_block_lengths = 1;



    if (s->use_noise_coding) {



        

        if (s->use_exp_vlc) {

            s->noise_mult = 0.02;

        } else {

            s->noise_mult = 0.04;




#ifdef TRACE

        for (VAR_2 = 0; VAR_2 < NOISE_TAB_SIZE; VAR_2++)

            s->noise_table[VAR_2] = 1.0 * s->noise_mult;

#else

        {

            unsigned int seed;

            float norm;

            seed = 1;

            norm = (1.0 / (float)(1LL << 31)) * sqrt(3) * s->noise_mult;

            for (VAR_2 = 0; VAR_2 < NOISE_TAB_SIZE; VAR_2++) {

                seed = seed * 314159 + 1;

                s->noise_table[VAR_2] = (float)((int)seed) * norm;



#endif




    

    VAR_7 = 2;

    if (VAR_0->sample_rate >= 32000) {

        if (VAR_3 < 0.72) {

            VAR_7 = 0;

        } else if (VAR_3 < 1.16) {

            VAR_7 = 1;



    s->coef_vlcs[0]= &coef_vlcs[VAR_7 * 2    ];

    s->coef_vlcs[1]= &coef_vlcs[VAR_7 * 2 + 1];

    init_coef_vlc(&s->coef_vlc[0], &s->run_table[0], &s->level_table[0], &s->int_table[0],

                  s->coef_vlcs[0]);

    init_coef_vlc(&s->coef_vlc[1], &s->run_table[1], &s->level_table[1], &s->int_table[1],

                  s->coef_vlcs[1]);



    return 0;

int FUNC_0(AVCodecContext *VAR_0, int VAR_1)
{ WMACodecContext *s = VAR_0->priv_data; int VAR_2; float VAR_3, VAR_4; volatile float VAR_5; int VAR_6; int VAR_7; if (   VAR_0->sample_rate <= 0 || VAR_0->sample_rate > 50000
|| VAR_0->channels    <= 0 || VAR_0->channels    > 2
|| VAR_0->bit_rate    <= 0)
return -1; ff_fmt_convert_init(&s->fmt_conv, VAR_0); avpriv_float_dsp_init(&s->fdsp, VAR_0->flags & CODEC_FLAG_BITEXACT); if (VAR_0->codec->id == AV_CODEC_ID_WMAV1) { s->version = 1; } else { s->version = 2; s->frame_len_bits = ff_wma_get_frame_len_bits(VAR_0->sample_rate,
s->version, 0); s->next_block_len_bits = s->frame_len_bits; s->prev_block_len_bits = s->frame_len_bits; s->block_len_bits      = s->frame_len_bits; s->frame_len = 1 << s->frame_len_bits; if (s->use_variable_block_len) { int VAR_8, VAR_9; VAR_9 = ((VAR_1 >> 3) & 3) + 1; if ((VAR_0->bit_rate / VAR_0->channels) >= 32000)
VAR_9 += 2; VAR_8 = s->frame_len_bits - BLOCK_MIN_BITS; if (VAR_9 > VAR_8)
VAR_9 = VAR_8; s->nb_block_sizes = VAR_9 + 1; } else { s->nb_block_sizes = 1; s->use_noise_coding = 1; VAR_4 = VAR_0->sample_rate * 0.5; VAR_6 = VAR_0->sample_rate; if (s->version == 2) { if (VAR_6 >= 44100) { VAR_6 = 44100; } else if (VAR_6 >= 22050) { VAR_6 = 22050; } else if (VAR_6 >= 16000) { VAR_6 = 16000; } else if (VAR_6 >= 11025) { VAR_6 = 11025; } else if (VAR_6 >= 8000) { VAR_6 = 8000; VAR_5 = (float)VAR_0->bit_rate / (float)(VAR_0->channels * VAR_0->sample_rate); s->byte_offset_bits = av_log2((int)(VAR_5 * s->frame_len / 8.0 + 0.5)) + 2; VAR_3 = VAR_5; if (VAR_0->channels == 2)
VAR_3 = VAR_5 * 1.6; if (VAR_6 == 44100) { if (VAR_3 >= 0.61) { s->use_noise_coding = 0; } else { VAR_4 = VAR_4 * 0.4; } else if (VAR_6 == 22050) { if (VAR_3 >= 1.16) { s->use_noise_coding = 0; } else if (VAR_3 >= 0.72) { VAR_4 = VAR_4 * 0.7; } else { VAR_4 = VAR_4 * 0.6; } else if (VAR_6 == 16000) { if (VAR_5 > 0.5) { VAR_4 = VAR_4 * 0.5; } else { VAR_4 = VAR_4 * 0.3; } else if (VAR_6 == 11025) { VAR_4 = VAR_4 * 0.7; } else if (VAR_6 == 8000) { if (VAR_5 <= 0.625) { VAR_4 = VAR_4 * 0.5; } else if (VAR_5 > 0.75) { s->use_noise_coding = 0; } else { VAR_4 = VAR_4 * 0.65; } else { if (VAR_5 >= 0.8) { VAR_4 = VAR_4 * 0.75; } else if (VAR_5 >= 0.6) { VAR_4 = VAR_4 * 0.6; } else { VAR_4 = VAR_4 * 0.5; av_dlog(s->VAR_0, "VAR_1=0x%x\n", VAR_1); av_dlog(s->VAR_0, "version=%d channels=%d sample_rate=%d bitrate=%d block_align=%d\n",
s->version, VAR_0->channels, VAR_0->sample_rate, VAR_0->bit_rate,
VAR_0->block_align); av_dlog(s->VAR_0, "VAR_5=%f VAR_3=%f VAR_4=%f bitoffset=%d\n",
VAR_5, VAR_3, VAR_4, s->byte_offset_bits); av_dlog(s->VAR_0, "use_noise_coding=%d use_exp_vlc=%d nb_block_sizes=%d\n",
s->use_noise_coding, s->use_exp_vlc, s->nb_block_sizes); { int a, b, pos, lpos, k, block_len, VAR_2, j, n; const uint8_t *table; if (s->version == 1) { s->coefs_start = 3; } else { s->coefs_start = 0; for (k = 0; k < s->nb_block_sizes; k++) { block_len = s->frame_len >> k; if (s->version == 1) { lpos = 0; for (VAR_2 = 0; VAR_2 < 25; VAR_2++) { a = ff_wma_critical_freqs[VAR_2]; b = VAR_0->sample_rate; pos = ((block_len * 2 * a) + (b >> 1)) / b; if (pos > block_len)
pos = block_len; s->exponent_bands[0][VAR_2] = pos - lpos; if (pos >= block_len) { VAR_2++; break; lpos = pos; s->exponent_sizes[0] = VAR_2; } else { table = NULL; a = s->frame_len_bits - BLOCK_MIN_BITS - k; if (a < 3) { if (VAR_0->sample_rate >= 44100) { table = exponent_band_44100[a]; } else if (VAR_0->sample_rate >= 32000) { table = exponent_band_32000[a]; } else if (VAR_0->sample_rate >= 22050) { table = exponent_band_22050[a]; if (table) { n = *table++; for (VAR_2 = 0; VAR_2 < n; VAR_2++) s->exponent_bands[k][VAR_2] = table[VAR_2]; s->exponent_sizes[k] = n; } else { j = 0; lpos = 0; for (VAR_2 = 0; VAR_2 < 25; VAR_2++) { a = ff_wma_critical_freqs[VAR_2]; b = VAR_0->sample_rate; pos = ((block_len * 2 * a) + (b << 1)) / (4 * b); pos <<= 2; if (pos > block_len)
pos = block_len; if (pos > lpos)
s->exponent_bands[k][j++] = pos - lpos; if (pos >= block_len)
break; lpos = pos; s->exponent_sizes[k] = j; s->coefs_end[k] = (s->frame_len - ((s->frame_len * 9) / 100)) >> k; s->high_band_start[k] = (int)((block_len * 2 * VAR_4) /
VAR_0->sample_rate + 0.5); n = s->exponent_sizes[k]; j = 0; pos = 0; for (VAR_2 = 0; VAR_2 < n; VAR_2++) { int start, end; start = pos; pos += s->exponent_bands[k][VAR_2]; end = pos; if (start < s->high_band_start[k])
start = s->high_band_start[k]; if (end > s->coefs_end[k])
end = s->coefs_end[k]; if (end > start)
s->exponent_high_bands[k][j++] = end - start; s->exponent_high_sizes[k] = j; #if 0
tprintf(s->VAR_0, "%5d: coefs_end=%d high_band_start=%d nb_high_bands=%d: ",
s->frame_len >> k,
s->coefs_end[k],
s->high_band_start[k],
s->exponent_high_sizes[k]); for (j = 0; j < s->exponent_high_sizes[k]; j++) tprintf(s->VAR_0, " %d", s->exponent_high_bands[k][j]); tprintf(s->VAR_0, "\n"); #endif
#ifdef TRACE
{ int VAR_2, j; for (VAR_2 = 0; VAR_2 < s->nb_block_sizes; VAR_2++) { tprintf(s->VAR_0, "%5d: n=%2d:",
s->frame_len >> VAR_2,
s->exponent_sizes[VAR_2]); for (j = 0; j < s->exponent_sizes[VAR_2]; j++) tprintf(s->VAR_0, " %d", s->exponent_bands[VAR_2][j]); tprintf(s->VAR_0, "\n"); #endif
for (VAR_2 = 0; VAR_2 < s->nb_block_sizes; VAR_2++) { ff_init_ff_sine_windows(s->frame_len_bits - VAR_2); s->windows[VAR_2] = ff_sine_windows[s->frame_len_bits - VAR_2]; s->reset_block_lengths = 1; if (s->use_noise_coding) { if (s->use_exp_vlc) { s->noise_mult = 0.02; } else { s->noise_mult = 0.04; #ifdef TRACE
for (VAR_2 = 0; VAR_2 < NOISE_TAB_SIZE; VAR_2++) s->noise_table[VAR_2] = 1.0 * s->noise_mult; #else
{ unsigned int seed; float norm; seed = 1; norm = (1.0 / (float)(1LL << 31)) * sqrt(3) * s->noise_mult; for (VAR_2 = 0; VAR_2 < NOISE_TAB_SIZE; VAR_2++) { seed = seed * 314159 + 1; s->noise_table[VAR_2] = (float)((int)seed) * norm; #endif
VAR_7 = 2; if (VAR_0->sample_rate >= 32000) { if (VAR_3 < 0.72) { VAR_7 = 0; } else if (VAR_3 < 1.16) { VAR_7 = 1; s->coef_vlcs[0]= &coef_vlcs[VAR_7 * 2    ]; s->coef_vlcs[1]= &coef_vlcs[VAR_7 * 2 + 1]; init_coef_vlc(&s->coef_vlc[0], &s->run_table[0], &s->level_table[0], &s->int_table[0],
s->coef_vlcs[0]); init_coef_vlc(&s->coef_vlc[1], &s->run_table[1], &s->level_table[1], &s->int_table[1],
s->coef_vlcs[1]); return 0;