static int tiff_decode_tag(TiffContext *s, const uint8_t *start,

                           const uint8_t *buf, const uint8_t *end_buf)

{

    unsigned tag, type, count, off, value = 0;

    int i;

    uint32_t *pal;

    const uint8_t *rp, *gp, *bp;



    if (end_buf - buf < 12)

        return AVERROR_INVALIDDATA;

    tag   = tget_short(&buf, s->le);

    type  = tget_short(&buf, s->le);

    count = tget_long(&buf, s->le);

    off   = tget_long(&buf, s->le);



    if (type == 0 || type >= FF_ARRAY_ELEMS(type_sizes)) {

        av_log(s->avctx, AV_LOG_DEBUG, "Unknown tiff type (%u) encountered\n",

               type);

        return 0;

    }



    if (count == 1) {

        switch (type) {

        case TIFF_BYTE:

        case TIFF_SHORT:

            buf  -= 4;

            value = tget(&buf, type, s->le);

            buf   = NULL;

            break;

        case TIFF_LONG:

            value = off;

            buf   = NULL;

            break;

        case TIFF_STRING:

            if (count <= 4) {

                buf -= 4;

                break;

            }

        default:

            value = UINT_MAX;

            buf   = start + off;

        }

    } else {

        if (count <= 4 && type_sizes[type] * count <= 4)

            buf -= 4;

        else

            buf = start + off;

    }



    if (buf && (buf < start || buf > end_buf)) {

        av_log(s->avctx, AV_LOG_ERROR,

               "Tag referencing position outside the image\n");

        return AVERROR_INVALIDDATA;

    }



    switch (tag) {

    case TIFF_WIDTH:

        s->width = value;

        break;

    case TIFF_HEIGHT:

        s->height = value;

        break;

    case TIFF_BPP:

        s->bppcount = count;

        if (count > 4) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "This format is not supported (bpp=%d, %d components)\n",

                   s->bpp, count);

            return AVERROR_INVALIDDATA;

        }

        if (count == 1)

            s->bpp = value;

        else {

            switch (type) {

            case TIFF_BYTE:

                s->bpp = (off & 0xFF) + ((off >> 8) & 0xFF) +

                         ((off >> 16) & 0xFF) + ((off >> 24) & 0xFF);

                break;

            case TIFF_SHORT:

            case TIFF_LONG:

                s->bpp = 0;

                for (i = 0; i < count && buf < end_buf; i++)

                    s->bpp += tget(&buf, type, s->le);

                break;

            default:

                s->bpp = -1;

            }

        }

        break;

    case TIFF_SAMPLES_PER_PIXEL:

        if (count != 1) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Samples per pixel requires a single value, many provided\n");

            return AVERROR_INVALIDDATA;

        }

        if (s->bppcount == 1)

            s->bpp *= value;

        s->bppcount = value;

        break;

    case TIFF_COMPR:

        s->compr     = value;

        s->predictor = 0;

        switch (s->compr) {

        case TIFF_RAW:

        case TIFF_PACKBITS:

        case TIFF_LZW:

        case TIFF_CCITT_RLE:

            break;

        case TIFF_G3:

        case TIFF_G4:

            s->fax_opts = 0;

            break;

        case TIFF_DEFLATE:

        case TIFF_ADOBE_DEFLATE:

#if CONFIG_ZLIB

            break;

#else

            av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");

            return AVERROR(ENOSYS);

#endif

        case TIFF_JPEG:

        case TIFF_NEWJPEG:

            avpriv_report_missing_feature(s->avctx, "JPEG compression");

            return AVERROR_PATCHWELCOME;

        default:

            av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",

                   s->compr);

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_ROWSPERSTRIP:

        if (type == TIFF_LONG && value == UINT_MAX)

            value = s->avctx->height;

        if (value < 1) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Incorrect value of rows per strip\n");

            return AVERROR_INVALIDDATA;

        }

        s->rps = value;

        break;

    case TIFF_STRIP_OFFS:

        if (count == 1) {

            s->stripdata = NULL;

            s->stripoff  = value;

        } else

            s->stripdata = start + off;

        s->strips = count;

        if (s->strips == 1)

            s->rps = s->height;

        s->sot = type;

        if (s->stripdata > end_buf) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Tag referencing position outside the image\n");

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_STRIP_SIZE:

        if (count == 1) {

            s->stripsizes = NULL;

            s->stripsize  = value;

            s->strips     = 1;

        } else {

            s->stripsizes = start + off;

        }

        s->strips = count;

        s->sstype = type;

        if (s->stripsizes > end_buf) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Tag referencing position outside the image\n");

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_PREDICTOR:

        s->predictor = value;

        break;

    case TIFF_INVERT:

        switch (value) {

        case 0:

            s->invert = 1;

            break;

        case 1:

            s->invert = 0;

            break;

        case 2:

        case 3:

            break;

        default:

            av_log(s->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",

                   value);

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_FILL_ORDER:

        if (value < 1 || value > 2) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Unknown FillOrder value %d, trying default one\n", value);

            value = 1;

        }

        s->fill_order = value - 1;

        break;

    case TIFF_PAL:

        pal = (uint32_t *) s->palette;

        off = type_sizes[type];

        if (count / 3 > 256 || end_buf - buf < count / 3 * off * 3)

            return AVERROR_INVALIDDATA;

        rp  = buf;

        gp  = buf + count / 3 * off;

        bp  = buf + count / 3 * off * 2;

        off = (type_sizes[type] - 1) << 3;

        for (i = 0; i < count / 3; i++) {

            uint32_t p = 0xFF000000;

            p |= (tget(&rp, type, s->le) >> off) << 16;

            p |= (tget(&gp, type, s->le) >> off) << 8;

            p |=  tget(&bp, type, s->le) >> off;

            pal[i] = p;

        }

        s->palette_is_set = 1;

        break;

    case TIFF_PLANAR:

        if (value == 2) {

            avpriv_report_missing_feature(s->avctx, "Planar format");

            return AVERROR_PATCHWELCOME;

        }

        break;

    case TIFF_T4OPTIONS:

        if (s->compr == TIFF_G3)

            s->fax_opts = value;

        break;

    case TIFF_T6OPTIONS:

        if (s->compr == TIFF_G4)

            s->fax_opts = value;

        break;

    default:

        if (s->avctx->err_recognition & AV_EF_EXPLODE) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Unknown or unsupported tag %d/0X%0X\n",

                   tag, tag);

            return AVERROR_INVALIDDATA;

        }

    }

    return 0;

}

static int tiff_decode_tag(TiffContext *s, const uint8_t *start,

                           const uint8_t *buf, const uint8_t *end_buf)

{

    unsigned tag, type, count, off, value = 0;

    int i;

    uint32_t *pal;

    const uint8_t *rp, *gp, *bp;



    if (end_buf - buf < 12)

        return AVERROR_INVALIDDATA;

    tag   = tget_short(&buf, s->le);

    type  = tget_short(&buf, s->le);

    count = tget_long(&buf, s->le);

    off   = tget_long(&buf, s->le);



    if (type == 0 || type >= FF_ARRAY_ELEMS(type_sizes)) {

        av_log(s->avctx, AV_LOG_DEBUG, "Unknown tiff type (%u) encountered\n",

               type);

        return 0;

    }



    if (count == 1) {

        switch (type) {

        case TIFF_BYTE:

        case TIFF_SHORT:

            buf  -= 4;

            value = tget(&buf, type, s->le);

            buf   = NULL;

            break;

        case TIFF_LONG:

            value = off;

            buf   = NULL;

            break;

        case TIFF_STRING:

            if (count <= 4) {

                buf -= 4;

                break;

            }

        default:

            value = UINT_MAX;

            buf   = start + off;

        }

    } else {

        if (count <= 4 && type_sizes[type] * count <= 4)

            buf -= 4;

        else

            buf = start + off;

    }



    if (buf && (buf < start || buf > end_buf)) {

        av_log(s->avctx, AV_LOG_ERROR,

               "Tag referencing position outside the image\n");

        return AVERROR_INVALIDDATA;

    }



    switch (tag) {

    case TIFF_WIDTH:

        s->width = value;

        break;

    case TIFF_HEIGHT:

        s->height = value;

        break;

    case TIFF_BPP:

        s->bppcount = count;

        if (count > 4) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "This format is not supported (bpp=%d, %d components)\n",

                   s->bpp, count);

            return AVERROR_INVALIDDATA;

        }

        if (count == 1)

            s->bpp = value;

        else {

            switch (type) {

            case TIFF_BYTE:

                s->bpp = (off & 0xFF) + ((off >> 8) & 0xFF) +

                         ((off >> 16) & 0xFF) + ((off >> 24) & 0xFF);

                break;

            case TIFF_SHORT:

            case TIFF_LONG:

                s->bpp = 0;

                for (i = 0; i < count && buf < end_buf; i++)

                    s->bpp += tget(&buf, type, s->le);

                break;

            default:

                s->bpp = -1;

            }

        }

        break;

    case TIFF_SAMPLES_PER_PIXEL:

        if (count != 1) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Samples per pixel requires a single value, many provided\n");

            return AVERROR_INVALIDDATA;

        }

        if (s->bppcount == 1)

            s->bpp *= value;

        s->bppcount = value;

        break;

    case TIFF_COMPR:

        s->compr     = value;

        s->predictor = 0;

        switch (s->compr) {

        case TIFF_RAW:

        case TIFF_PACKBITS:

        case TIFF_LZW:

        case TIFF_CCITT_RLE:

            break;

        case TIFF_G3:

        case TIFF_G4:

            s->fax_opts = 0;

            break;

        case TIFF_DEFLATE:

        case TIFF_ADOBE_DEFLATE:

#if CONFIG_ZLIB

            break;

#else

            av_log(s->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");

            return AVERROR(ENOSYS);

#endif

        case TIFF_JPEG:

        case TIFF_NEWJPEG:

            avpriv_report_missing_feature(s->avctx, "JPEG compression");

            return AVERROR_PATCHWELCOME;

        default:

            av_log(s->avctx, AV_LOG_ERROR, "Unknown compression method %i\n",

                   s->compr);

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_ROWSPERSTRIP:

        if (type == TIFF_LONG && value == UINT_MAX)

            value = s->avctx->height;

        if (value < 1) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Incorrect value of rows per strip\n");

            return AVERROR_INVALIDDATA;

        }

        s->rps = value;

        break;

    case TIFF_STRIP_OFFS:

        if (count == 1) {

            s->stripdata = NULL;

            s->stripoff  = value;

        } else

            s->stripdata = start + off;

        s->strips = count;

        if (s->strips == 1)

            s->rps = s->height;

        s->sot = type;

        if (s->stripdata > end_buf) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Tag referencing position outside the image\n");

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_STRIP_SIZE:

        if (count == 1) {

            s->stripsizes = NULL;

            s->stripsize  = value;

            s->strips     = 1;

        } else {

            s->stripsizes = start + off;

        }

        s->strips = count;

        s->sstype = type;

        if (s->stripsizes > end_buf) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Tag referencing position outside the image\n");

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_PREDICTOR:

        s->predictor = value;

        break;

    case TIFF_INVERT:

        switch (value) {

        case 0:

            s->invert = 1;

            break;

        case 1:

            s->invert = 0;

            break;

        case 2:

        case 3:

            break;

        default:

            av_log(s->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",

                   value);

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_FILL_ORDER:

        if (value < 1 || value > 2) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Unknown FillOrder value %d, trying default one\n", value);

            value = 1;

        }

        s->fill_order = value - 1;

        break;

    case TIFF_PAL:

        pal = (uint32_t *) s->palette;

        off = type_sizes[type];

        if (count / 3 > 256 || end_buf - buf < count / 3 * off * 3)

            return AVERROR_INVALIDDATA;

        rp  = buf;

        gp  = buf + count / 3 * off;

        bp  = buf + count / 3 * off * 2;

        off = (type_sizes[type] - 1) << 3;

        for (i = 0; i < count / 3; i++) {

            uint32_t p = 0xFF000000;

            p |= (tget(&rp, type, s->le) >> off) << 16;

            p |= (tget(&gp, type, s->le) >> off) << 8;

            p |=  tget(&bp, type, s->le) >> off;

            pal[i] = p;

        }

        s->palette_is_set = 1;

        break;

    case TIFF_PLANAR:

        if (value == 2) {

            avpriv_report_missing_feature(s->avctx, "Planar format");

            return AVERROR_PATCHWELCOME;

        }

        break;

    case TIFF_T4OPTIONS:

        if (s->compr == TIFF_G3)

            s->fax_opts = value;

        break;

    case TIFF_T6OPTIONS:

        if (s->compr == TIFF_G4)

            s->fax_opts = value;

        break;

    default:

        if (s->avctx->err_recognition & AV_EF_EXPLODE) {

            av_log(s->avctx, AV_LOG_ERROR,

                   "Unknown or unsupported tag %d/0X%0X\n",

                   tag, tag);

            return AVERROR_INVALIDDATA;

        }

    }

    return 0;

}

    default:             return AVERROR_INVALIDDATA;         case TIFF_LZW:             break; static int tiff_decode_tag(TiffContext *s, const uint8_t *start,                            const uint8_t *buf, const uint8_t *end_buf)     int i;     const uint8_t *rp, *gp, *bp;     if (end_buf - buf < 12)     tag   = tget_short(&buf, s->le);     type  = tget_short(&buf, s->le);     count = tget_long(&buf, s->le);     off   = tget_long(&buf, s->le);             buf  -= 4;             value = tget(&buf, type, s->le);             buf   = NULL;             buf   = NULL;                 buf -= 4;             buf   = start + off;             buf -= 4;             buf = start + off;     if (buf && (buf < start || buf > end_buf)) {         av_log(s->avctx, AV_LOG_ERROR,                "Tag referencing position outside the image\n");         return AVERROR_INVALIDDATA;                 for (i = 0; i < count && buf < end_buf; i++)                     s->bpp += tget(&buf, type, s->le);             s->stripdata = NULL;             s->stripoff  = value;             s->stripdata = start + off;         if (s->stripdata > end_buf) {             av_log(s->avctx, AV_LOG_ERROR,                    "Tag referencing position outside the image\n");             return AVERROR_INVALIDDATA;             s->stripsizes = NULL;             s->stripsize  = value;             s->strips     = 1;             s->stripsizes = start + off;         if (s->stripsizes > end_buf) {             av_log(s->avctx, AV_LOG_ERROR,                    "Tag referencing position outside the image\n");             return AVERROR_INVALIDDATA;     case TIFF_PAL:         if (count / 3 > 256 || end_buf - buf < count / 3 * off * 3)         rp  = buf;         gp  = buf + count / 3 * off;         bp  = buf + count / 3 * off * 2;             p |= (tget(&rp, type, s->le) >> off) << 16;             p |= (tget(&gp, type, s->le) >> off) << 8;             p |=  tget(&bp, type, s->le) >> off;         } else         } else
static int FUNC_0(TiffContext *VAR_0, const uint8_t *VAR_1,

                           const uint8_t *VAR_2, const uint8_t *VAR_3)

{

    unsigned VAR_4, VAR_5, VAR_6, VAR_7, VAR_8 = 0;

    int VAR_9;

    uint32_t *pal;

    const uint8_t *VAR_10, *gp, *bp;



    if (VAR_3 - VAR_2 < 12)

        return AVERROR_INVALIDDATA;

    VAR_4   = tget_short(&VAR_2, VAR_0->le);

    VAR_5  = tget_short(&VAR_2, VAR_0->le);

    VAR_6 = tget_long(&VAR_2, VAR_0->le);

    VAR_7   = tget_long(&VAR_2, VAR_0->le);



    if (VAR_5 == 0 || VAR_5 >= FF_ARRAY_ELEMS(type_sizes)) {

        av_log(VAR_0->avctx, AV_LOG_DEBUG, "Unknown tiff VAR_5 (%u) encountered\n",

               VAR_5);

        return 0;

    }



    if (VAR_6 == 1) {

        switch (VAR_5) {

        case TIFF_BYTE:

        case TIFF_SHORT:

            VAR_2  -= 4;

            VAR_8 = tget(&VAR_2, VAR_5, VAR_0->le);

            VAR_2   = NULL;

            break;

        case TIFF_LONG:

            VAR_8 = VAR_7;

            VAR_2   = NULL;

            break;

        case TIFF_STRING:

            if (VAR_6 <= 4) {

                VAR_2 -= 4;

                break;

            }

        default:

            VAR_8 = UINT_MAX;

            VAR_2   = VAR_1 + VAR_7;

        }

    } else {

        if (VAR_6 <= 4 && type_sizes[VAR_5] * VAR_6 <= 4)

            VAR_2 -= 4;

        else

            VAR_2 = VAR_1 + VAR_7;

    }



    if (VAR_2 && (VAR_2 < VAR_1 || VAR_2 > VAR_3)) {

        av_log(VAR_0->avctx, AV_LOG_ERROR,

               "Tag referencing position outside the image\n");

        return AVERROR_INVALIDDATA;

    }



    switch (VAR_4) {

    case TIFF_WIDTH:

        VAR_0->width = VAR_8;

        break;

    case TIFF_HEIGHT:

        VAR_0->height = VAR_8;

        break;

    case TIFF_BPP:

        VAR_0->bppcount = VAR_6;

        if (VAR_6 > 4) {

            av_log(VAR_0->avctx, AV_LOG_ERROR,

                   "This format is not supported (bpp=%d, %d components)\n",

                   VAR_0->bpp, VAR_6);

            return AVERROR_INVALIDDATA;

        }

        if (VAR_6 == 1)

            VAR_0->bpp = VAR_8;

        else {

            switch (VAR_5) {

            case TIFF_BYTE:

                VAR_0->bpp = (VAR_7 & 0xFF) + ((VAR_7 >> 8) & 0xFF) +

                         ((VAR_7 >> 16) & 0xFF) + ((VAR_7 >> 24) & 0xFF);

                break;

            case TIFF_SHORT:

            case TIFF_LONG:

                VAR_0->bpp = 0;

                for (VAR_9 = 0; VAR_9 < VAR_6 && VAR_2 < VAR_3; VAR_9++)

                    VAR_0->bpp += tget(&VAR_2, VAR_5, VAR_0->le);

                break;

            default:

                VAR_0->bpp = -1;

            }

        }

        break;

    case TIFF_SAMPLES_PER_PIXEL:

        if (VAR_6 != 1) {

            av_log(VAR_0->avctx, AV_LOG_ERROR,

                   "Samples per pixel requires a single VAR_8, many provided\n");

            return AVERROR_INVALIDDATA;

        }

        if (VAR_0->bppcount == 1)

            VAR_0->bpp *= VAR_8;

        VAR_0->bppcount = VAR_8;

        break;

    case TIFF_COMPR:

        VAR_0->compr     = VAR_8;

        VAR_0->predictor = 0;

        switch (VAR_0->compr) {

        case TIFF_RAW:

        case TIFF_PACKBITS:

        case TIFF_LZW:

        case TIFF_CCITT_RLE:

            break;

        case TIFF_G3:

        case TIFF_G4:

            VAR_0->fax_opts = 0;

            break;

        case TIFF_DEFLATE:

        case TIFF_ADOBE_DEFLATE:

#if CONFIG_ZLIB

            break;

#else

            av_log(VAR_0->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n");

            return AVERROR(ENOSYS);

#endif

        case TIFF_JPEG:

        case TIFF_NEWJPEG:

            avpriv_report_missing_feature(VAR_0->avctx, "JPEG compression");

            return AVERROR_PATCHWELCOME;

        default:

            av_log(VAR_0->avctx, AV_LOG_ERROR, "Unknown compression method %VAR_9\n",

                   VAR_0->compr);

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_ROWSPERSTRIP:

        if (VAR_5 == TIFF_LONG && VAR_8 == UINT_MAX)

            VAR_8 = VAR_0->avctx->height;

        if (VAR_8 < 1) {

            av_log(VAR_0->avctx, AV_LOG_ERROR,

                   "Incorrect VAR_8 of rows per strip\n");

            return AVERROR_INVALIDDATA;

        }

        VAR_0->rps = VAR_8;

        break;

    case TIFF_STRIP_OFFS:

        if (VAR_6 == 1) {

            VAR_0->stripdata = NULL;

            VAR_0->stripoff  = VAR_8;

        } else

            VAR_0->stripdata = VAR_1 + VAR_7;

        VAR_0->strips = VAR_6;

        if (VAR_0->strips == 1)

            VAR_0->rps = VAR_0->height;

        VAR_0->sot = VAR_5;

        if (VAR_0->stripdata > VAR_3) {

            av_log(VAR_0->avctx, AV_LOG_ERROR,

                   "Tag referencing position outside the image\n");

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_STRIP_SIZE:

        if (VAR_6 == 1) {

            VAR_0->stripsizes = NULL;

            VAR_0->stripsize  = VAR_8;

            VAR_0->strips     = 1;

        } else {

            VAR_0->stripsizes = VAR_1 + VAR_7;

        }

        VAR_0->strips = VAR_6;

        VAR_0->sstype = VAR_5;

        if (VAR_0->stripsizes > VAR_3) {

            av_log(VAR_0->avctx, AV_LOG_ERROR,

                   "Tag referencing position outside the image\n");

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_PREDICTOR:

        VAR_0->predictor = VAR_8;

        break;

    case TIFF_INVERT:

        switch (VAR_8) {

        case 0:

            VAR_0->invert = 1;

            break;

        case 1:

            VAR_0->invert = 0;

            break;

        case 2:

        case 3:

            break;

        default:

            av_log(VAR_0->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",

                   VAR_8);

            return AVERROR_INVALIDDATA;

        }

        break;

    case TIFF_FILL_ORDER:

        if (VAR_8 < 1 || VAR_8 > 2) {

            av_log(VAR_0->avctx, AV_LOG_ERROR,

                   "Unknown FillOrder VAR_8 %d, trying default one\n", VAR_8);

            VAR_8 = 1;

        }

        VAR_0->fill_order = VAR_8 - 1;

        break;

    case TIFF_PAL:

        pal = (uint32_t *) VAR_0->palette;

        VAR_7 = type_sizes[VAR_5];

        if (VAR_6 / 3 > 256 || VAR_3 - VAR_2 < VAR_6 / 3 * VAR_7 * 3)

            return AVERROR_INVALIDDATA;

        VAR_10  = VAR_2;

        gp  = VAR_2 + VAR_6 / 3 * VAR_7;

        bp  = VAR_2 + VAR_6 / 3 * VAR_7 * 2;

        VAR_7 = (type_sizes[VAR_5] - 1) << 3;

        for (VAR_9 = 0; VAR_9 < VAR_6 / 3; VAR_9++) {

            uint32_t p = 0xFF000000;

            p |= (tget(&VAR_10, VAR_5, VAR_0->le) >> VAR_7) << 16;

            p |= (tget(&gp, VAR_5, VAR_0->le) >> VAR_7) << 8;

            p |=  tget(&bp, VAR_5, VAR_0->le) >> VAR_7;

            pal[VAR_9] = p;

        }

        VAR_0->palette_is_set = 1;

        break;

    case TIFF_PLANAR:

        if (VAR_8 == 2) {

            avpriv_report_missing_feature(VAR_0->avctx, "Planar format");

            return AVERROR_PATCHWELCOME;

        }

        break;

    case TIFF_T4OPTIONS:

        if (VAR_0->compr == TIFF_G3)

            VAR_0->fax_opts = VAR_8;

        break;

    case TIFF_T6OPTIONS:

        if (VAR_0->compr == TIFF_G4)

            VAR_0->fax_opts = VAR_8;

        break;

    default:

        if (VAR_0->avctx->err_recognition & AV_EF_EXPLODE) {

            av_log(VAR_0->avctx, AV_LOG_ERROR,

                   "Unknown or unsupported VAR_4 %d/0X%0X\n",

                   VAR_4, VAR_4);

            return AVERROR_INVALIDDATA;

        }

    }

    return 0;

}

static int FUNC_0(TiffContext *VAR_0, const uint8_t *VAR_1,
const uint8_t *VAR_2, const uint8_t *VAR_3)
{ unsigned VAR_4, VAR_5, VAR_6, VAR_7, VAR_8 = 0; int VAR_9; uint32_t *pal; const uint8_t *VAR_10, *gp, *bp; if (VAR_3 - VAR_2 < 12)
return AVERROR_INVALIDDATA; VAR_4   = tget_short(&VAR_2, VAR_0->le); VAR_5  = tget_short(&VAR_2, VAR_0->le); VAR_6 = tget_long(&VAR_2, VAR_0->le); VAR_7   = tget_long(&VAR_2, VAR_0->le); if (VAR_5 == 0 || VAR_5 >= FF_ARRAY_ELEMS(type_sizes)) { av_log(VAR_0->avctx, AV_LOG_DEBUG, "Unknown tiff VAR_5 (%u) encountered\n",
VAR_5); return 0; } if (VAR_6 == 1) { switch (VAR_5) { case TIFF_BYTE:
case TIFF_SHORT:
VAR_2  -= 4; VAR_8 = tget(&VAR_2, VAR_5, VAR_0->le); VAR_2   = NULL; break; case TIFF_LONG:
VAR_8 = VAR_7; VAR_2   = NULL; break; case TIFF_STRING:
if (VAR_6 <= 4) { VAR_2 -= 4; break; } default:
VAR_8 = UINT_MAX; VAR_2   = VAR_1 + VAR_7; } } else { if (VAR_6 <= 4 && type_sizes[VAR_5] * VAR_6 <= 4)
VAR_2 -= 4; else
VAR_2 = VAR_1 + VAR_7; } if (VAR_2 && (VAR_2 < VAR_1 || VAR_2 > VAR_3)) { av_log(VAR_0->avctx, AV_LOG_ERROR,
"Tag referencing position outside the image\n"); return AVERROR_INVALIDDATA; } switch (VAR_4) { case TIFF_WIDTH:
VAR_0->width = VAR_8; break; case TIFF_HEIGHT:
VAR_0->height = VAR_8; break; case TIFF_BPP:
VAR_0->bppcount = VAR_6; if (VAR_6 > 4) { av_log(VAR_0->avctx, AV_LOG_ERROR,
"This format is not supported (bpp=%d, %d components)\n",
VAR_0->bpp, VAR_6); return AVERROR_INVALIDDATA; } if (VAR_6 == 1)
VAR_0->bpp = VAR_8; else { switch (VAR_5) { case TIFF_BYTE:
VAR_0->bpp = (VAR_7 & 0xFF) + ((VAR_7 >> 8) & 0xFF) +
((VAR_7 >> 16) & 0xFF) + ((VAR_7 >> 24) & 0xFF); break; case TIFF_SHORT:
case TIFF_LONG:
VAR_0->bpp = 0; for (VAR_9 = 0; VAR_9 < VAR_6 && VAR_2 < VAR_3; VAR_9++) VAR_0->bpp += tget(&VAR_2, VAR_5, VAR_0->le); break; default:
VAR_0->bpp = -1; } } break; case TIFF_SAMPLES_PER_PIXEL:
if (VAR_6 != 1) { av_log(VAR_0->avctx, AV_LOG_ERROR,
"Samples per pixel requires a single VAR_8, many provided\n"); return AVERROR_INVALIDDATA; } if (VAR_0->bppcount == 1)
VAR_0->bpp *= VAR_8; VAR_0->bppcount = VAR_8; break; case TIFF_COMPR:
VAR_0->compr     = VAR_8; VAR_0->predictor = 0; switch (VAR_0->compr) { case TIFF_RAW:
case TIFF_PACKBITS:
case TIFF_LZW:
case TIFF_CCITT_RLE:
break; case TIFF_G3:
case TIFF_G4:
VAR_0->fax_opts = 0; break; case TIFF_DEFLATE:
case TIFF_ADOBE_DEFLATE:
#if CONFIG_ZLIB
break; #else
av_log(VAR_0->avctx, AV_LOG_ERROR, "Deflate: ZLib not compiled in\n"); return AVERROR(ENOSYS); #endif
case TIFF_JPEG:
case TIFF_NEWJPEG:
avpriv_report_missing_feature(VAR_0->avctx, "JPEG compression"); return AVERROR_PATCHWELCOME; default:
av_log(VAR_0->avctx, AV_LOG_ERROR, "Unknown compression method %VAR_9\n",
VAR_0->compr); return AVERROR_INVALIDDATA; } break; case TIFF_ROWSPERSTRIP:
if (VAR_5 == TIFF_LONG && VAR_8 == UINT_MAX)
VAR_8 = VAR_0->avctx->height; if (VAR_8 < 1) { av_log(VAR_0->avctx, AV_LOG_ERROR,
"Incorrect VAR_8 of rows per strip\n"); return AVERROR_INVALIDDATA; } VAR_0->rps = VAR_8; break; case TIFF_STRIP_OFFS:
if (VAR_6 == 1) { VAR_0->stripdata = NULL; VAR_0->stripoff  = VAR_8; } else VAR_0->stripdata = VAR_1 + VAR_7; VAR_0->strips = VAR_6; if (VAR_0->strips == 1)
VAR_0->rps = VAR_0->height; VAR_0->sot = VAR_5; if (VAR_0->stripdata > VAR_3) { av_log(VAR_0->avctx, AV_LOG_ERROR,
"Tag referencing position outside the image\n"); return AVERROR_INVALIDDATA; } break; case TIFF_STRIP_SIZE:
if (VAR_6 == 1) { VAR_0->stripsizes = NULL; VAR_0->stripsize  = VAR_8; VAR_0->strips     = 1; } else { VAR_0->stripsizes = VAR_1 + VAR_7; } VAR_0->strips = VAR_6; VAR_0->sstype = VAR_5; if (VAR_0->stripsizes > VAR_3) { av_log(VAR_0->avctx, AV_LOG_ERROR,
"Tag referencing position outside the image\n"); return AVERROR_INVALIDDATA; } break; case TIFF_PREDICTOR:
VAR_0->predictor = VAR_8; break; case TIFF_INVERT:
switch (VAR_8) { case 0:
VAR_0->invert = 1; break; case 1:
VAR_0->invert = 0; break; case 2:
case 3:
break; default:
av_log(VAR_0->avctx, AV_LOG_ERROR, "Color mode %d is not supported\n",
VAR_8); return AVERROR_INVALIDDATA; } break; case TIFF_FILL_ORDER:
if (VAR_8 < 1 || VAR_8 > 2) { av_log(VAR_0->avctx, AV_LOG_ERROR,
"Unknown FillOrder VAR_8 %d, trying default one\n", VAR_8); VAR_8 = 1; } VAR_0->fill_order = VAR_8 - 1; break; case TIFF_PAL:
pal = (uint32_t *) VAR_0->palette; VAR_7 = type_sizes[VAR_5]; if (VAR_6 / 3 > 256 || VAR_3 - VAR_2 < VAR_6 / 3 * VAR_7 * 3)
return AVERROR_INVALIDDATA; VAR_10  = VAR_2; gp  = VAR_2 + VAR_6 / 3 * VAR_7; bp  = VAR_2 + VAR_6 / 3 * VAR_7 * 2; VAR_7 = (type_sizes[VAR_5] - 1) << 3; for (VAR_9 = 0; VAR_9 < VAR_6 / 3; VAR_9++) { uint32_t p = 0xFF000000; p |= (tget(&VAR_10, VAR_5, VAR_0->le) >> VAR_7) << 16; p |= (tget(&gp, VAR_5, VAR_0->le) >> VAR_7) << 8; p |=  tget(&bp, VAR_5, VAR_0->le) >> VAR_7; pal[VAR_9] = p; } VAR_0->palette_is_set = 1; break; case TIFF_PLANAR:
if (VAR_8 == 2) { avpriv_report_missing_feature(VAR_0->avctx, "Planar format"); return AVERROR_PATCHWELCOME; } break; case TIFF_T4OPTIONS:
if (VAR_0->compr == TIFF_G3)
VAR_0->fax_opts = VAR_8; break; case TIFF_T6OPTIONS:
if (VAR_0->compr == TIFF_G4)
VAR_0->fax_opts = VAR_8; break; default:
if (VAR_0->avctx->err_recognition & AV_EF_EXPLODE) { av_log(VAR_0->avctx, AV_LOG_ERROR,
"Unknown or unsupported VAR_4 %d/0X%0X\n",
VAR_4, VAR_4); return AVERROR_INVALIDDATA; } } return 0; }