int ff_intel_h263_decode_picture_header(MpegEncContext *s)

{

    int format;



    /* picture header */

    if (get_bits_long(&s->gb, 22) != 0x20) {

        av_log(s->avctx, AV_LOG_ERROR, "Bad picture start code\n");

        return -1;

    }

    s->picture_number = get_bits(&s->gb, 8); /* picture timestamp */



    if (get_bits1(&s->gb) != 1) {

        av_log(s->avctx, AV_LOG_ERROR, "Bad marker\n");

        return -1;      /* marker */

    }

    if (get_bits1(&s->gb) != 0) {

        av_log(s->avctx, AV_LOG_ERROR, "Bad H263 id\n");

        return -1;      /* h263 id */

    }

    skip_bits1(&s->gb);         /* split screen off */

    skip_bits1(&s->gb);         /* camera  off */

    skip_bits1(&s->gb);         /* freeze picture release off */



    format = get_bits(&s->gb, 3);

    if (format == 0 || format == 6) {

        av_log(s->avctx, AV_LOG_ERROR, "Intel H263 free format not supported\n");

        return -1;

    }

    s->h263_plus = 0;



    s->pict_type = AV_PICTURE_TYPE_I + get_bits1(&s->gb);



    s->unrestricted_mv = get_bits1(&s->gb);

    s->h263_long_vectors = s->unrestricted_mv;



    if (get_bits1(&s->gb) != 0) {

        av_log(s->avctx, AV_LOG_ERROR, "SAC not supported\n");

        return -1;      /* SAC: off */

    }

    s->obmc= get_bits1(&s->gb);

    s->pb_frame = get_bits1(&s->gb);



    if (format < 6) {

        s->width = ff_h263_format[format][0];

        s->height = ff_h263_format[format][1];

        s->avctx->sample_aspect_ratio.num = 12;

        s->avctx->sample_aspect_ratio.den = 11;

    } else {

        format = get_bits(&s->gb, 3);

        if(format == 0 || format == 7){

            av_log(s->avctx, AV_LOG_ERROR, "Wrong Intel H263 format\n");

            return -1;

        }

        if(get_bits(&s->gb, 2))

            av_log(s->avctx, AV_LOG_ERROR, "Bad value for reserved field\n");

        s->loop_filter = get_bits1(&s->gb);

        if(get_bits1(&s->gb))

            av_log(s->avctx, AV_LOG_ERROR, "Bad value for reserved field\n");

        if(get_bits1(&s->gb))

            s->pb_frame = 2;

        if(get_bits(&s->gb, 5))

            av_log(s->avctx, AV_LOG_ERROR, "Bad value for reserved field\n");

        if(get_bits(&s->gb, 5) != 1)

            av_log(s->avctx, AV_LOG_ERROR, "Invalid marker\n");

    }

    if(format == 6){

        int ar = get_bits(&s->gb, 4);

        skip_bits(&s->gb, 9); // display width

        skip_bits1(&s->gb);

        skip_bits(&s->gb, 9); // display height

        if(ar == 15){

            s->avctx->sample_aspect_ratio.num = get_bits(&s->gb, 8); // aspect ratio - width

            s->avctx->sample_aspect_ratio.den = get_bits(&s->gb, 8); // aspect ratio - height

        } else {

            s->avctx->sample_aspect_ratio = ff_h263_pixel_aspect[ar];

        }

        if (s->avctx->sample_aspect_ratio.num == 0)

            av_log(s->avctx, AV_LOG_ERROR, "Invalid aspect ratio.\n");

    }



    s->chroma_qscale= s->qscale = get_bits(&s->gb, 5);

    skip_bits1(&s->gb); /* Continuous Presence Multipoint mode: off */



    if(s->pb_frame){

        skip_bits(&s->gb, 3); //temporal reference for B-frame

        skip_bits(&s->gb, 2); //dbquant

    }



    /* PEI */

    while (get_bits1(&s->gb) != 0) {

        skip_bits(&s->gb, 8);

    }

    s->f_code = 1;



    s->y_dc_scale_table=

    s->c_dc_scale_table= ff_mpeg1_dc_scale_table;



    ff_h263_show_pict_info(s);



    return 0;

}

int ff_intel_h263_decode_picture_header(MpegEncContext *s)

{

    int format;



    

    if (get_bits_long(&s->gb, 22) != 0x20) {

        av_log(s->avctx, AV_LOG_ERROR, "Bad picture start code\n");

        return -1;

    }

    s->picture_number = get_bits(&s->gb, 8); 



    if (get_bits1(&s->gb) != 1) {

        av_log(s->avctx, AV_LOG_ERROR, "Bad marker\n");

        return -1;      

    }

    if (get_bits1(&s->gb) != 0) {

        av_log(s->avctx, AV_LOG_ERROR, "Bad H263 id\n");

        return -1;      

    }

    skip_bits1(&s->gb);         

    skip_bits1(&s->gb);         

    skip_bits1(&s->gb);         



    format = get_bits(&s->gb, 3);

    if (format == 0 || format == 6) {

        av_log(s->avctx, AV_LOG_ERROR, "Intel H263 free format not supported\n");

        return -1;

    }

    s->h263_plus = 0;



    s->pict_type = AV_PICTURE_TYPE_I + get_bits1(&s->gb);



    s->unrestricted_mv = get_bits1(&s->gb);

    s->h263_long_vectors = s->unrestricted_mv;



    if (get_bits1(&s->gb) != 0) {

        av_log(s->avctx, AV_LOG_ERROR, "SAC not supported\n");

        return -1;      

    }

    s->obmc= get_bits1(&s->gb);

    s->pb_frame = get_bits1(&s->gb);



    if (format < 6) {

        s->width = ff_h263_format[format][0];

        s->height = ff_h263_format[format][1];

        s->avctx->sample_aspect_ratio.num = 12;

        s->avctx->sample_aspect_ratio.den = 11;

    } else {

        format = get_bits(&s->gb, 3);

        if(format == 0 || format == 7){

            av_log(s->avctx, AV_LOG_ERROR, "Wrong Intel H263 format\n");

            return -1;

        }

        if(get_bits(&s->gb, 2))

            av_log(s->avctx, AV_LOG_ERROR, "Bad value for reserved field\n");

        s->loop_filter = get_bits1(&s->gb);

        if(get_bits1(&s->gb))

            av_log(s->avctx, AV_LOG_ERROR, "Bad value for reserved field\n");

        if(get_bits1(&s->gb))

            s->pb_frame = 2;

        if(get_bits(&s->gb, 5))

            av_log(s->avctx, AV_LOG_ERROR, "Bad value for reserved field\n");

        if(get_bits(&s->gb, 5) != 1)

            av_log(s->avctx, AV_LOG_ERROR, "Invalid marker\n");

    }

    if(format == 6){

        int ar = get_bits(&s->gb, 4);

        skip_bits(&s->gb, 9); 

        skip_bits1(&s->gb);

        skip_bits(&s->gb, 9); 

        if(ar == 15){

            s->avctx->sample_aspect_ratio.num = get_bits(&s->gb, 8); 

            s->avctx->sample_aspect_ratio.den = get_bits(&s->gb, 8); 

        } else {

            s->avctx->sample_aspect_ratio = ff_h263_pixel_aspect[ar];

        }

        if (s->avctx->sample_aspect_ratio.num == 0)

            av_log(s->avctx, AV_LOG_ERROR, "Invalid aspect ratio.\n");

    }



    s->chroma_qscale= s->qscale = get_bits(&s->gb, 5);

    skip_bits1(&s->gb); 



    if(s->pb_frame){

        skip_bits(&s->gb, 3); 

        skip_bits(&s->gb, 2); 

    }



    

    while (get_bits1(&s->gb) != 0) {

        skip_bits(&s->gb, 8);

    }

    s->f_code = 1;



    s->y_dc_scale_table=

    s->c_dc_scale_table= ff_mpeg1_dc_scale_table;



    ff_h263_show_pict_info(s);



    return 0;

}

int FUNC_0(MpegEncContext *VAR_0)

{

    int VAR_1;



    

    if (get_bits_long(&VAR_0->gb, 22) != 0x20) {

        av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad picture start code\n");

        return -1;

    }

    VAR_0->picture_number = get_bits(&VAR_0->gb, 8); 



    if (get_bits1(&VAR_0->gb) != 1) {

        av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad marker\n");

        return -1;      

    }

    if (get_bits1(&VAR_0->gb) != 0) {

        av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad H263 id\n");

        return -1;      

    }

    skip_bits1(&VAR_0->gb);         

    skip_bits1(&VAR_0->gb);         

    skip_bits1(&VAR_0->gb);         



    VAR_1 = get_bits(&VAR_0->gb, 3);

    if (VAR_1 == 0 || VAR_1 == 6) {

        av_log(VAR_0->avctx, AV_LOG_ERROR, "Intel H263 free VAR_1 not supported\n");

        return -1;

    }

    VAR_0->h263_plus = 0;



    VAR_0->pict_type = AV_PICTURE_TYPE_I + get_bits1(&VAR_0->gb);



    VAR_0->unrestricted_mv = get_bits1(&VAR_0->gb);

    VAR_0->h263_long_vectors = VAR_0->unrestricted_mv;



    if (get_bits1(&VAR_0->gb) != 0) {

        av_log(VAR_0->avctx, AV_LOG_ERROR, "SAC not supported\n");

        return -1;      

    }

    VAR_0->obmc= get_bits1(&VAR_0->gb);

    VAR_0->pb_frame = get_bits1(&VAR_0->gb);



    if (VAR_1 < 6) {

        VAR_0->width = ff_h263_format[VAR_1][0];

        VAR_0->height = ff_h263_format[VAR_1][1];

        VAR_0->avctx->sample_aspect_ratio.num = 12;

        VAR_0->avctx->sample_aspect_ratio.den = 11;

    } else {

        VAR_1 = get_bits(&VAR_0->gb, 3);

        if(VAR_1 == 0 || VAR_1 == 7){

            av_log(VAR_0->avctx, AV_LOG_ERROR, "Wrong Intel H263 VAR_1\n");

            return -1;

        }

        if(get_bits(&VAR_0->gb, 2))

            av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad value for reserved field\n");

        VAR_0->loop_filter = get_bits1(&VAR_0->gb);

        if(get_bits1(&VAR_0->gb))

            av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad value for reserved field\n");

        if(get_bits1(&VAR_0->gb))

            VAR_0->pb_frame = 2;

        if(get_bits(&VAR_0->gb, 5))

            av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad value for reserved field\n");

        if(get_bits(&VAR_0->gb, 5) != 1)

            av_log(VAR_0->avctx, AV_LOG_ERROR, "Invalid marker\n");

    }

    if(VAR_1 == 6){

        int VAR_2 = get_bits(&VAR_0->gb, 4);

        skip_bits(&VAR_0->gb, 9); 

        skip_bits1(&VAR_0->gb);

        skip_bits(&VAR_0->gb, 9); 

        if(VAR_2 == 15){

            VAR_0->avctx->sample_aspect_ratio.num = get_bits(&VAR_0->gb, 8); 

            VAR_0->avctx->sample_aspect_ratio.den = get_bits(&VAR_0->gb, 8); 

        } else {

            VAR_0->avctx->sample_aspect_ratio = ff_h263_pixel_aspect[VAR_2];

        }

        if (VAR_0->avctx->sample_aspect_ratio.num == 0)

            av_log(VAR_0->avctx, AV_LOG_ERROR, "Invalid aspect ratio.\n");

    }



    VAR_0->chroma_qscale= VAR_0->qscale = get_bits(&VAR_0->gb, 5);

    skip_bits1(&VAR_0->gb); 



    if(VAR_0->pb_frame){

        skip_bits(&VAR_0->gb, 3); 

        skip_bits(&VAR_0->gb, 2); 

    }



    

    while (get_bits1(&VAR_0->gb) != 0) {

        skip_bits(&VAR_0->gb, 8);

    }

    VAR_0->f_code = 1;



    VAR_0->y_dc_scale_table=

    VAR_0->c_dc_scale_table= ff_mpeg1_dc_scale_table;



    ff_h263_show_pict_info(VAR_0);



    return 0;

}

int FUNC_0(MpegEncContext *VAR_0)
{ int VAR_1; if (get_bits_long(&VAR_0->gb, 22) != 0x20) { av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad picture start code\n"); return -1; } VAR_0->picture_number = get_bits(&VAR_0->gb, 8); if (get_bits1(&VAR_0->gb) != 1) { av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad marker\n"); return -1; } if (get_bits1(&VAR_0->gb) != 0) { av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad H263 id\n"); return -1; } skip_bits1(&VAR_0->gb); skip_bits1(&VAR_0->gb); skip_bits1(&VAR_0->gb); VAR_1 = get_bits(&VAR_0->gb, 3); if (VAR_1 == 0 || VAR_1 == 6) { av_log(VAR_0->avctx, AV_LOG_ERROR, "Intel H263 free VAR_1 not supported\n"); return -1; } VAR_0->h263_plus = 0; VAR_0->pict_type = AV_PICTURE_TYPE_I + get_bits1(&VAR_0->gb); VAR_0->unrestricted_mv = get_bits1(&VAR_0->gb); VAR_0->h263_long_vectors = VAR_0->unrestricted_mv; if (get_bits1(&VAR_0->gb) != 0) { av_log(VAR_0->avctx, AV_LOG_ERROR, "SAC not supported\n"); return -1; } VAR_0->obmc= get_bits1(&VAR_0->gb); VAR_0->pb_frame = get_bits1(&VAR_0->gb); if (VAR_1 < 6) { VAR_0->width = ff_h263_format[VAR_1][0]; VAR_0->height = ff_h263_format[VAR_1][1]; VAR_0->avctx->sample_aspect_ratio.num = 12; VAR_0->avctx->sample_aspect_ratio.den = 11; } else { VAR_1 = get_bits(&VAR_0->gb, 3); if(VAR_1 == 0 || VAR_1 == 7){ av_log(VAR_0->avctx, AV_LOG_ERROR, "Wrong Intel H263 VAR_1\n"); return -1; } if(get_bits(&VAR_0->gb, 2))
av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad value for reserved field\n"); VAR_0->loop_filter = get_bits1(&VAR_0->gb); if(get_bits1(&VAR_0->gb))
av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad value for reserved field\n"); if(get_bits1(&VAR_0->gb))
VAR_0->pb_frame = 2; if(get_bits(&VAR_0->gb, 5))
av_log(VAR_0->avctx, AV_LOG_ERROR, "Bad value for reserved field\n"); if(get_bits(&VAR_0->gb, 5) != 1)
av_log(VAR_0->avctx, AV_LOG_ERROR, "Invalid marker\n"); } if(VAR_1 == 6){ int VAR_2 = get_bits(&VAR_0->gb, 4); skip_bits(&VAR_0->gb, 9); skip_bits1(&VAR_0->gb); skip_bits(&VAR_0->gb, 9); if(VAR_2 == 15){ VAR_0->avctx->sample_aspect_ratio.num = get_bits(&VAR_0->gb, 8); VAR_0->avctx->sample_aspect_ratio.den = get_bits(&VAR_0->gb, 8); } else { VAR_0->avctx->sample_aspect_ratio = ff_h263_pixel_aspect[VAR_2]; } if (VAR_0->avctx->sample_aspect_ratio.num == 0)
av_log(VAR_0->avctx, AV_LOG_ERROR, "Invalid aspect ratio.\n"); } VAR_0->chroma_qscale= VAR_0->qscale = get_bits(&VAR_0->gb, 5); skip_bits1(&VAR_0->gb); if(VAR_0->pb_frame){ skip_bits(&VAR_0->gb, 3); skip_bits(&VAR_0->gb, 2); } while (get_bits1(&VAR_0->gb) != 0) { skip_bits(&VAR_0->gb, 8); } VAR_0->f_code = 1; VAR_0->y_dc_scale_table=
VAR_0->c_dc_scale_table= ff_mpeg1_dc_scale_table; ff_h263_show_pict_info(VAR_0); return 0; }