static int bmp_decode_frame(AVCodecContext *avctx,

                            void *data, int *data_size,

                            AVPacket *avpkt)

{

    const uint8_t *buf = avpkt->data;

    int buf_size = avpkt->size;

    BMPContext *s = avctx->priv_data;

    AVFrame *picture = data;

    AVFrame *p = &s->picture;

    unsigned int fsize, hsize;

    int width, height;

    unsigned int depth;

    BiCompression comp;

    unsigned int ihsize;

    int i, j, n, linesize;

    uint32_t rgb[3];

    uint32_t alpha = 0;

    uint8_t *ptr;

    int dsize;

    const uint8_t *buf0 = buf;

    GetByteContext gb;



    if(buf_size < 14){

        av_log(avctx, AV_LOG_ERROR, "buf size too small (%d)\n", buf_size);

        return -1;

    }



    if(bytestream_get_byte(&buf) != 'B' ||

       bytestream_get_byte(&buf) != 'M') {

        av_log(avctx, AV_LOG_ERROR, "bad magic number\n");

        return -1;

    }



    fsize = bytestream_get_le32(&buf);

    if(buf_size < fsize){

        av_log(avctx, AV_LOG_ERROR, "not enough data (%d < %d), trying to decode anyway\n",

               buf_size, fsize);

        fsize = buf_size;

    }



    buf += 2; /* reserved1 */

    buf += 2; /* reserved2 */



    hsize = bytestream_get_le32(&buf); /* header size */

    ihsize = bytestream_get_le32(&buf);       /* more header size */

    if(ihsize + 14 > hsize){

        av_log(avctx, AV_LOG_ERROR, "invalid header size %d\n", hsize);

        return -1;

    }



    /* sometimes file size is set to some headers size, set a real size in that case */

    if(fsize == 14 || fsize == ihsize + 14)

        fsize = buf_size - 2;



    if(fsize <= hsize){

        av_log(avctx, AV_LOG_ERROR, "declared file size is less than header size (%d < %d)\n",

               fsize, hsize);

        return -1;

    }



    switch(ihsize){

    case  40: // windib

    case  56: // windib v3

    case  64: // OS/2 v2

    case 108: // windib v4

    case 124: // windib v5

        width = bytestream_get_le32(&buf);

        height = bytestream_get_le32(&buf);

        break;

    case  12: // OS/2 v1

        width  = bytestream_get_le16(&buf);

        height = bytestream_get_le16(&buf);

        break;

    default:

        av_log(avctx, AV_LOG_ERROR, "unsupported BMP file, patch welcome\n");

        return -1;

    }



    if(bytestream_get_le16(&buf) != 1){ /* planes */

        av_log(avctx, AV_LOG_ERROR, "invalid BMP header\n");

        return -1;

    }



    depth = bytestream_get_le16(&buf);



    if (ihsize >= 40)

        comp = bytestream_get_le32(&buf);

    else

        comp = BMP_RGB;



    if(comp != BMP_RGB && comp != BMP_BITFIELDS && comp != BMP_RLE4 && comp != BMP_RLE8){

        av_log(avctx, AV_LOG_ERROR, "BMP coding %d not supported\n", comp);

        return -1;

    }



    if(comp == BMP_BITFIELDS){

        buf += 20;

        rgb[0] = bytestream_get_le32(&buf);

        rgb[1] = bytestream_get_le32(&buf);

        rgb[2] = bytestream_get_le32(&buf);

        alpha = bytestream_get_le32(&buf);

    }



    avctx->width = width;

    avctx->height = height > 0? height: -height;



    avctx->pix_fmt = AV_PIX_FMT_NONE;



    switch(depth){

    case 32:

        if(comp == BMP_BITFIELDS){

            if (rgb[0] == 0xFF000000 && rgb[1] == 0x00FF0000 && rgb[2] == 0x0000FF00)

                avctx->pix_fmt = alpha ? AV_PIX_FMT_ABGR : AV_PIX_FMT_0BGR;

            else if (rgb[0] == 0x00FF0000 && rgb[1] == 0x0000FF00 && rgb[2] == 0x000000FF)

                avctx->pix_fmt = alpha ? AV_PIX_FMT_BGRA : AV_PIX_FMT_BGR0;

            else if (rgb[0] == 0x0000FF00 && rgb[1] == 0x00FF0000 && rgb[2] == 0xFF000000)

                avctx->pix_fmt = alpha ? AV_PIX_FMT_ARGB : AV_PIX_FMT_0RGB;

            else if (rgb[0] == 0x000000FF && rgb[1] == 0x0000FF00 && rgb[2] == 0x00FF0000)

                avctx->pix_fmt = alpha ? AV_PIX_FMT_RGBA : AV_PIX_FMT_RGB0;

            else {

                av_log(avctx, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\n", rgb[0], rgb[1], rgb[2]);

                return AVERROR(EINVAL);

            }

        } else {

            avctx->pix_fmt = AV_PIX_FMT_BGRA;

        }

        break;

    case 24:

        avctx->pix_fmt = AV_PIX_FMT_BGR24;

        break;

    case 16:

        if(comp == BMP_RGB)

            avctx->pix_fmt = AV_PIX_FMT_RGB555;

        else if (comp == BMP_BITFIELDS) {

            if (rgb[0] == 0xF800 && rgb[1] == 0x07E0 && rgb[2] == 0x001F)

               avctx->pix_fmt = AV_PIX_FMT_RGB565;

            else if (rgb[0] == 0x7C00 && rgb[1] == 0x03E0 && rgb[2] == 0x001F)

               avctx->pix_fmt = AV_PIX_FMT_RGB555;

            else if (rgb[0] == 0x0F00 && rgb[1] == 0x00F0 && rgb[2] == 0x000F)

               avctx->pix_fmt = AV_PIX_FMT_RGB444;

            else {

               av_log(avctx, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\n", rgb[0], rgb[1], rgb[2]);

               return AVERROR(EINVAL);

            }

        }

        break;

    case 8:

        if(hsize - ihsize - 14 > 0)

            avctx->pix_fmt = AV_PIX_FMT_PAL8;

        else

            avctx->pix_fmt = AV_PIX_FMT_GRAY8;

        break;

    case 1:

    case 4:

        if(hsize - ihsize - 14 > 0){

            avctx->pix_fmt = AV_PIX_FMT_PAL8;

        }else{

            av_log(avctx, AV_LOG_ERROR, "Unknown palette for %d-colour BMP\n", 1<<depth);

            return -1;

        }

        break;

    default:

        av_log(avctx, AV_LOG_ERROR, "depth %d not supported\n", depth);

        return -1;

    }



    if(avctx->pix_fmt == AV_PIX_FMT_NONE){

        av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n");

        return -1;

    }



    if(p->data[0])

        avctx->release_buffer(avctx, p);



    p->reference = 0;

    if(avctx->get_buffer(avctx, p) < 0){

        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");

        return -1;

    }

    p->pict_type = AV_PICTURE_TYPE_I;

    p->key_frame = 1;



    buf = buf0 + hsize;

    dsize = buf_size - hsize;



    /* Line size in file multiple of 4 */

    n = ((avctx->width * depth + 31) / 8) & ~3;



    if(n * avctx->height > dsize && comp != BMP_RLE4 && comp != BMP_RLE8){

        av_log(avctx, AV_LOG_ERROR, "not enough data (%d < %d)\n",

               dsize, n * avctx->height);

        return -1;

    }



    // RLE may skip decoding some picture areas, so blank picture before decoding

    if(comp == BMP_RLE4 || comp == BMP_RLE8)

        memset(p->data[0], 0, avctx->height * p->linesize[0]);



    if(height > 0){

        ptr = p->data[0] + (avctx->height - 1) * p->linesize[0];

        linesize = -p->linesize[0];

    } else {

        ptr = p->data[0];

        linesize = p->linesize[0];

    }



    if(avctx->pix_fmt == AV_PIX_FMT_PAL8){

        int colors = 1 << depth;



        memset(p->data[1], 0, 1024);



        if(ihsize >= 36){

            int t;

            buf = buf0 + 46;

            t = bytestream_get_le32(&buf);

            if(t < 0 || t > (1 << depth)){

                av_log(avctx, AV_LOG_ERROR, "Incorrect number of colors - %X for bitdepth %d\n", t, depth);

            }else if(t){

                colors = t;

            }

        }

        buf = buf0 + 14 + ihsize; //palette location

        if((hsize-ihsize-14) < (colors << 2)){ // OS/2 bitmap, 3 bytes per palette entry

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

                ((uint32_t*)p->data[1])[i] = (0xff<<24) | bytestream_get_le24(&buf);

        }else{

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

                ((uint32_t*)p->data[1])[i] = 0xFFU << 24 | bytestream_get_le32(&buf);

        }

        buf = buf0 + hsize;

    }

    if(comp == BMP_RLE4 || comp == BMP_RLE8){

        if(height < 0){

            p->data[0] += p->linesize[0] * (avctx->height - 1);

            p->linesize[0] = -p->linesize[0];

        }

        bytestream2_init(&gb, buf, dsize);

        ff_msrle_decode(avctx, (AVPicture*)p, depth, &gb);

        if(height < 0){

            p->data[0] += p->linesize[0] * (avctx->height - 1);

            p->linesize[0] = -p->linesize[0];

        }

    }else{

        switch(depth){

        case 1:

            for (i = 0; i < avctx->height; i++) {

                int j;

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

                    ptr[j*8+0] =  buf[j] >> 7;

                    ptr[j*8+1] = (buf[j] >> 6) & 1;

                    ptr[j*8+2] = (buf[j] >> 5) & 1;

                    ptr[j*8+3] = (buf[j] >> 4) & 1;

                    ptr[j*8+4] = (buf[j] >> 3) & 1;

                    ptr[j*8+5] = (buf[j] >> 2) & 1;

                    ptr[j*8+6] = (buf[j] >> 1) & 1;

                    ptr[j*8+7] =  buf[j]       & 1;

                }

                buf += n;

                ptr += linesize;

            }

            break;

        case 8:

        case 24:

        case 32:

            for(i = 0; i < avctx->height; i++){

                memcpy(ptr, buf, n);

                buf += n;

                ptr += linesize;

            }

            break;

        case 4:

            for(i = 0; i < avctx->height; i++){

                int j;

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

                    ptr[j*2+0] = (buf[j] >> 4) & 0xF;

                    ptr[j*2+1] = buf[j] & 0xF;

                }

                buf += n;

                ptr += linesize;

            }

            break;

        case 16:

            for(i = 0; i < avctx->height; i++){

                const uint16_t *src = (const uint16_t *) buf;

                uint16_t *dst = (uint16_t *) ptr;



                for(j = 0; j < avctx->width; j++)

                    *dst++ = av_le2ne16(*src++);



                buf += n;

                ptr += linesize;

            }

            break;

        default:

            av_log(avctx, AV_LOG_ERROR, "BMP decoder is broken\n");

            return -1;

        }

    }



    *picture = s->picture;

    *data_size = sizeof(AVPicture);



    return buf_size;

}

static int bmp_decode_frame(AVCodecContext *avctx,

                            void *data, int *data_size,

                            AVPacket *avpkt)

{

    const uint8_t *buf = avpkt->data;

    int buf_size = avpkt->size;

    BMPContext *s = avctx->priv_data;

    AVFrame *picture = data;

    AVFrame *p = &s->picture;

    unsigned int fsize, hsize;

    int width, height;

    unsigned int depth;

    BiCompression comp;

    unsigned int ihsize;

    int i, j, n, linesize;

    uint32_t rgb[3];

    uint32_t alpha = 0;

    uint8_t *ptr;

    int dsize;

    const uint8_t *buf0 = buf;

    GetByteContext gb;



    if(buf_size < 14){

        av_log(avctx, AV_LOG_ERROR, "buf size too small (%d)\n", buf_size);

        return -1;

    }



    if(bytestream_get_byte(&buf) != 'B' ||

       bytestream_get_byte(&buf) != 'M') {

        av_log(avctx, AV_LOG_ERROR, "bad magic number\n");

        return -1;

    }



    fsize = bytestream_get_le32(&buf);

    if(buf_size < fsize){

        av_log(avctx, AV_LOG_ERROR, "not enough data (%d < %d), trying to decode anyway\n",

               buf_size, fsize);

        fsize = buf_size;

    }



    buf += 2; 

    buf += 2; 



    hsize = bytestream_get_le32(&buf); 

    ihsize = bytestream_get_le32(&buf);       

    if(ihsize + 14 > hsize){

        av_log(avctx, AV_LOG_ERROR, "invalid header size %d\n", hsize);

        return -1;

    }



    

    if(fsize == 14 || fsize == ihsize + 14)

        fsize = buf_size - 2;



    if(fsize <= hsize){

        av_log(avctx, AV_LOG_ERROR, "declared file size is less than header size (%d < %d)\n",

               fsize, hsize);

        return -1;

    }



    switch(ihsize){

    case  40: 

    case  56:  v3

    case  64: 

    case 108:  v4

    case 124:  v5

        width = bytestream_get_le32(&buf);

        height = bytestream_get_le32(&buf);

        break;

    case  12: 

        width  = bytestream_get_le16(&buf);

        height = bytestream_get_le16(&buf);

        break;

    default:

        av_log(avctx, AV_LOG_ERROR, "unsupported BMP file, patch welcome\n");

        return -1;

    }



    if(bytestream_get_le16(&buf) != 1){ 

        av_log(avctx, AV_LOG_ERROR, "invalid BMP header\n");

        return -1;

    }



    depth = bytestream_get_le16(&buf);



    if (ihsize >= 40)

        comp = bytestream_get_le32(&buf);

    else

        comp = BMP_RGB;



    if(comp != BMP_RGB && comp != BMP_BITFIELDS && comp != BMP_RLE4 && comp != BMP_RLE8){

        av_log(avctx, AV_LOG_ERROR, "BMP coding %d not supported\n", comp);

        return -1;

    }



    if(comp == BMP_BITFIELDS){

        buf += 20;

        rgb[0] = bytestream_get_le32(&buf);

        rgb[1] = bytestream_get_le32(&buf);

        rgb[2] = bytestream_get_le32(&buf);

        alpha = bytestream_get_le32(&buf);

    }



    avctx->width = width;

    avctx->height = height > 0? height: -height;



    avctx->pix_fmt = AV_PIX_FMT_NONE;



    switch(depth){

    case 32:

        if(comp == BMP_BITFIELDS){

            if (rgb[0] == 0xFF000000 && rgb[1] == 0x00FF0000 && rgb[2] == 0x0000FF00)

                avctx->pix_fmt = alpha ? AV_PIX_FMT_ABGR : AV_PIX_FMT_0BGR;

            else if (rgb[0] == 0x00FF0000 && rgb[1] == 0x0000FF00 && rgb[2] == 0x000000FF)

                avctx->pix_fmt = alpha ? AV_PIX_FMT_BGRA : AV_PIX_FMT_BGR0;

            else if (rgb[0] == 0x0000FF00 && rgb[1] == 0x00FF0000 && rgb[2] == 0xFF000000)

                avctx->pix_fmt = alpha ? AV_PIX_FMT_ARGB : AV_PIX_FMT_0RGB;

            else if (rgb[0] == 0x000000FF && rgb[1] == 0x0000FF00 && rgb[2] == 0x00FF0000)

                avctx->pix_fmt = alpha ? AV_PIX_FMT_RGBA : AV_PIX_FMT_RGB0;

            else {

                av_log(avctx, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\n", rgb[0], rgb[1], rgb[2]);

                return AVERROR(EINVAL);

            }

        } else {

            avctx->pix_fmt = AV_PIX_FMT_BGRA;

        }

        break;

    case 24:

        avctx->pix_fmt = AV_PIX_FMT_BGR24;

        break;

    case 16:

        if(comp == BMP_RGB)

            avctx->pix_fmt = AV_PIX_FMT_RGB555;

        else if (comp == BMP_BITFIELDS) {

            if (rgb[0] == 0xF800 && rgb[1] == 0x07E0 && rgb[2] == 0x001F)

               avctx->pix_fmt = AV_PIX_FMT_RGB565;

            else if (rgb[0] == 0x7C00 && rgb[1] == 0x03E0 && rgb[2] == 0x001F)

               avctx->pix_fmt = AV_PIX_FMT_RGB555;

            else if (rgb[0] == 0x0F00 && rgb[1] == 0x00F0 && rgb[2] == 0x000F)

               avctx->pix_fmt = AV_PIX_FMT_RGB444;

            else {

               av_log(avctx, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\n", rgb[0], rgb[1], rgb[2]);

               return AVERROR(EINVAL);

            }

        }

        break;

    case 8:

        if(hsize - ihsize - 14 > 0)

            avctx->pix_fmt = AV_PIX_FMT_PAL8;

        else

            avctx->pix_fmt = AV_PIX_FMT_GRAY8;

        break;

    case 1:

    case 4:

        if(hsize - ihsize - 14 > 0){

            avctx->pix_fmt = AV_PIX_FMT_PAL8;

        }else{

            av_log(avctx, AV_LOG_ERROR, "Unknown palette for %d-colour BMP\n", 1<<depth);

            return -1;

        }

        break;

    default:

        av_log(avctx, AV_LOG_ERROR, "depth %d not supported\n", depth);

        return -1;

    }



    if(avctx->pix_fmt == AV_PIX_FMT_NONE){

        av_log(avctx, AV_LOG_ERROR, "unsupported pixel format\n");

        return -1;

    }



    if(p->data[0])

        avctx->release_buffer(avctx, p);



    p->reference = 0;

    if(avctx->get_buffer(avctx, p) < 0){

        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");

        return -1;

    }

    p->pict_type = AV_PICTURE_TYPE_I;

    p->key_frame = 1;



    buf = buf0 + hsize;

    dsize = buf_size - hsize;



    

    n = ((avctx->width * depth + 31) / 8) & ~3;



    if(n * avctx->height > dsize && comp != BMP_RLE4 && comp != BMP_RLE8){

        av_log(avctx, AV_LOG_ERROR, "not enough data (%d < %d)\n",

               dsize, n * avctx->height);

        return -1;

    }



    

    if(comp == BMP_RLE4 || comp == BMP_RLE8)

        memset(p->data[0], 0, avctx->height * p->linesize[0]);



    if(height > 0){

        ptr = p->data[0] + (avctx->height - 1) * p->linesize[0];

        linesize = -p->linesize[0];

    } else {

        ptr = p->data[0];

        linesize = p->linesize[0];

    }



    if(avctx->pix_fmt == AV_PIX_FMT_PAL8){

        int colors = 1 << depth;



        memset(p->data[1], 0, 1024);



        if(ihsize >= 36){

            int t;

            buf = buf0 + 46;

            t = bytestream_get_le32(&buf);

            if(t < 0 || t > (1 << depth)){

                av_log(avctx, AV_LOG_ERROR, "Incorrect number of colors - %X for bitdepth %d\n", t, depth);

            }else if(t){

                colors = t;

            }

        }

        buf = buf0 + 14 + ihsize; 

        if((hsize-ihsize-14) < (colors << 2)){ 

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

                ((uint32_t*)p->data[1])[i] = (0xff<<24) | bytestream_get_le24(&buf);

        }else{

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

                ((uint32_t*)p->data[1])[i] = 0xFFU << 24 | bytestream_get_le32(&buf);

        }

        buf = buf0 + hsize;

    }

    if(comp == BMP_RLE4 || comp == BMP_RLE8){

        if(height < 0){

            p->data[0] += p->linesize[0] * (avctx->height - 1);

            p->linesize[0] = -p->linesize[0];

        }

        bytestream2_init(&gb, buf, dsize);

        ff_msrle_decode(avctx, (AVPicture*)p, depth, &gb);

        if(height < 0){

            p->data[0] += p->linesize[0] * (avctx->height - 1);

            p->linesize[0] = -p->linesize[0];

        }

    }else{

        switch(depth){

        case 1:

            for (i = 0; i < avctx->height; i++) {

                int j;

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

                    ptr[j*8+0] =  buf[j] >> 7;

                    ptr[j*8+1] = (buf[j] >> 6) & 1;

                    ptr[j*8+2] = (buf[j] >> 5) & 1;

                    ptr[j*8+3] = (buf[j] >> 4) & 1;

                    ptr[j*8+4] = (buf[j] >> 3) & 1;

                    ptr[j*8+5] = (buf[j] >> 2) & 1;

                    ptr[j*8+6] = (buf[j] >> 1) & 1;

                    ptr[j*8+7] =  buf[j]       & 1;

                }

                buf += n;

                ptr += linesize;

            }

            break;

        case 8:

        case 24:

        case 32:

            for(i = 0; i < avctx->height; i++){

                memcpy(ptr, buf, n);

                buf += n;

                ptr += linesize;

            }

            break;

        case 4:

            for(i = 0; i < avctx->height; i++){

                int j;

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

                    ptr[j*2+0] = (buf[j] >> 4) & 0xF;

                    ptr[j*2+1] = buf[j] & 0xF;

                }

                buf += n;

                ptr += linesize;

            }

            break;

        case 16:

            for(i = 0; i < avctx->height; i++){

                const uint16_t *src = (const uint16_t *) buf;

                uint16_t *dst = (uint16_t *) ptr;



                for(j = 0; j < avctx->width; j++)

                    *dst++ = av_le2ne16(*src++);



                buf += n;

                ptr += linesize;

            }

            break;

        default:

            av_log(avctx, AV_LOG_ERROR, "BMP decoder is broken\n");

            return -1;

        }

    }



    *picture = s->picture;

    *data_size = sizeof(AVPicture);



    return buf_size;

}

                ((uint32_t*)p->data[1])[i] = (0xff<<24) | bytestream_get_le24(&buf);
static int FUNC_0(AVCodecContext *VAR_0,

                            void *VAR_1, int *VAR_2,

                            AVPacket *VAR_3)

{

    const uint8_t *VAR_4 = VAR_3->VAR_1;

    int VAR_5 = VAR_3->size;

    BMPContext *s = VAR_0->priv_data;

    AVFrame *picture = VAR_1;

    AVFrame *p = &s->picture;

    unsigned int VAR_6, VAR_7;

    int VAR_8, VAR_9;

    unsigned int VAR_10;

    BiCompression comp;

    unsigned int VAR_11;

    int VAR_12, VAR_13, VAR_14, VAR_15;

    uint32_t rgb[3];

    uint32_t alpha = 0;

    uint8_t *ptr;

    int VAR_16;

    const uint8_t *VAR_17 = VAR_4;

    GetByteContext gb;



    if(VAR_5 < 14){

        av_log(VAR_0, AV_LOG_ERROR, "VAR_4 size too small (%d)\VAR_14", VAR_5);

        return -1;

    }



    if(bytestream_get_byte(&VAR_4) != 'B' ||

       bytestream_get_byte(&VAR_4) != 'M') {

        av_log(VAR_0, AV_LOG_ERROR, "bad magic number\VAR_14");

        return -1;

    }



    VAR_6 = bytestream_get_le32(&VAR_4);

    if(VAR_5 < VAR_6){

        av_log(VAR_0, AV_LOG_ERROR, "not enough VAR_1 (%d < %d), trying to decode anyway\VAR_14",

               VAR_5, VAR_6);

        VAR_6 = VAR_5;

    }



    VAR_4 += 2; 

    VAR_4 += 2; 



    VAR_7 = bytestream_get_le32(&VAR_4); 

    VAR_11 = bytestream_get_le32(&VAR_4);       

    if(VAR_11 + 14 > VAR_7){

        av_log(VAR_0, AV_LOG_ERROR, "invalid header size %d\VAR_14", VAR_7);

        return -1;

    }



    

    if(VAR_6 == 14 || VAR_6 == VAR_11 + 14)

        VAR_6 = VAR_5 - 2;



    if(VAR_6 <= VAR_7){

        av_log(VAR_0, AV_LOG_ERROR, "declared file size is less than header size (%d < %d)\VAR_14",

               VAR_6, VAR_7);

        return -1;

    }



    switch(VAR_11){

    case  40: 

    case  56:  v3

    case  64: 

    case 108:  v4

    case 124:  v5

        VAR_8 = bytestream_get_le32(&VAR_4);

        VAR_9 = bytestream_get_le32(&VAR_4);

        break;

    case  12: 

        VAR_8  = bytestream_get_le16(&VAR_4);

        VAR_9 = bytestream_get_le16(&VAR_4);

        break;

    default:

        av_log(VAR_0, AV_LOG_ERROR, "unsupported BMP file, patch welcome\VAR_14");

        return -1;

    }



    if(bytestream_get_le16(&VAR_4) != 1){ 

        av_log(VAR_0, AV_LOG_ERROR, "invalid BMP header\VAR_14");

        return -1;

    }



    VAR_10 = bytestream_get_le16(&VAR_4);



    if (VAR_11 >= 40)

        comp = bytestream_get_le32(&VAR_4);

    else

        comp = BMP_RGB;



    if(comp != BMP_RGB && comp != BMP_BITFIELDS && comp != BMP_RLE4 && comp != BMP_RLE8){

        av_log(VAR_0, AV_LOG_ERROR, "BMP coding %d not supported\VAR_14", comp);

        return -1;

    }



    if(comp == BMP_BITFIELDS){

        VAR_4 += 20;

        rgb[0] = bytestream_get_le32(&VAR_4);

        rgb[1] = bytestream_get_le32(&VAR_4);

        rgb[2] = bytestream_get_le32(&VAR_4);

        alpha = bytestream_get_le32(&VAR_4);

    }



    VAR_0->VAR_8 = VAR_8;

    VAR_0->VAR_9 = VAR_9 > 0? VAR_9: -VAR_9;



    VAR_0->pix_fmt = AV_PIX_FMT_NONE;



    switch(VAR_10){

    case 32:

        if(comp == BMP_BITFIELDS){

            if (rgb[0] == 0xFF000000 && rgb[1] == 0x00FF0000 && rgb[2] == 0x0000FF00)

                VAR_0->pix_fmt = alpha ? AV_PIX_FMT_ABGR : AV_PIX_FMT_0BGR;

            else if (rgb[0] == 0x00FF0000 && rgb[1] == 0x0000FF00 && rgb[2] == 0x000000FF)

                VAR_0->pix_fmt = alpha ? AV_PIX_FMT_BGRA : AV_PIX_FMT_BGR0;

            else if (rgb[0] == 0x0000FF00 && rgb[1] == 0x00FF0000 && rgb[2] == 0xFF000000)

                VAR_0->pix_fmt = alpha ? AV_PIX_FMT_ARGB : AV_PIX_FMT_0RGB;

            else if (rgb[0] == 0x000000FF && rgb[1] == 0x0000FF00 && rgb[2] == 0x00FF0000)

                VAR_0->pix_fmt = alpha ? AV_PIX_FMT_RGBA : AV_PIX_FMT_RGB0;

            else {

                av_log(VAR_0, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\VAR_14", rgb[0], rgb[1], rgb[2]);

                return AVERROR(EINVAL);

            }

        } else {

            VAR_0->pix_fmt = AV_PIX_FMT_BGRA;

        }

        break;

    case 24:

        VAR_0->pix_fmt = AV_PIX_FMT_BGR24;

        break;

    case 16:

        if(comp == BMP_RGB)

            VAR_0->pix_fmt = AV_PIX_FMT_RGB555;

        else if (comp == BMP_BITFIELDS) {

            if (rgb[0] == 0xF800 && rgb[1] == 0x07E0 && rgb[2] == 0x001F)

               VAR_0->pix_fmt = AV_PIX_FMT_RGB565;

            else if (rgb[0] == 0x7C00 && rgb[1] == 0x03E0 && rgb[2] == 0x001F)

               VAR_0->pix_fmt = AV_PIX_FMT_RGB555;

            else if (rgb[0] == 0x0F00 && rgb[1] == 0x00F0 && rgb[2] == 0x000F)

               VAR_0->pix_fmt = AV_PIX_FMT_RGB444;

            else {

               av_log(VAR_0, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\VAR_14", rgb[0], rgb[1], rgb[2]);

               return AVERROR(EINVAL);

            }

        }

        break;

    case 8:

        if(VAR_7 - VAR_11 - 14 > 0)

            VAR_0->pix_fmt = AV_PIX_FMT_PAL8;

        else

            VAR_0->pix_fmt = AV_PIX_FMT_GRAY8;

        break;

    case 1:

    case 4:

        if(VAR_7 - VAR_11 - 14 > 0){

            VAR_0->pix_fmt = AV_PIX_FMT_PAL8;

        }else{

            av_log(VAR_0, AV_LOG_ERROR, "Unknown palette for %d-colour BMP\VAR_14", 1<<VAR_10);

            return -1;

        }

        break;

    default:

        av_log(VAR_0, AV_LOG_ERROR, "VAR_10 %d not supported\VAR_14", VAR_10);

        return -1;

    }



    if(VAR_0->pix_fmt == AV_PIX_FMT_NONE){

        av_log(VAR_0, AV_LOG_ERROR, "unsupported pixel format\VAR_14");

        return -1;

    }



    if(p->VAR_1[0])

        VAR_0->release_buffer(VAR_0, p);



    p->reference = 0;

    if(VAR_0->get_buffer(VAR_0, p) < 0){

        av_log(VAR_0, AV_LOG_ERROR, "get_buffer() failed\VAR_14");

        return -1;

    }

    p->pict_type = AV_PICTURE_TYPE_I;

    p->key_frame = 1;



    VAR_4 = VAR_17 + VAR_7;

    VAR_16 = VAR_5 - VAR_7;



    

    VAR_14 = ((VAR_0->VAR_8 * VAR_10 + 31) / 8) & ~3;



    if(VAR_14 * VAR_0->VAR_9 > VAR_16 && comp != BMP_RLE4 && comp != BMP_RLE8){

        av_log(VAR_0, AV_LOG_ERROR, "not enough VAR_1 (%d < %d)\VAR_14",

               VAR_16, VAR_14 * VAR_0->VAR_9);

        return -1;

    }



    

    if(comp == BMP_RLE4 || comp == BMP_RLE8)

        memset(p->VAR_1[0], 0, VAR_0->VAR_9 * p->VAR_15[0]);



    if(VAR_9 > 0){

        ptr = p->VAR_1[0] + (VAR_0->VAR_9 - 1) * p->VAR_15[0];

        VAR_15 = -p->VAR_15[0];

    } else {

        ptr = p->VAR_1[0];

        VAR_15 = p->VAR_15[0];

    }



    if(VAR_0->pix_fmt == AV_PIX_FMT_PAL8){

        int VAR_18 = 1 << VAR_10;



        memset(p->VAR_1[1], 0, 1024);



        if(VAR_11 >= 36){

            int VAR_19;

            VAR_4 = VAR_17 + 46;

            VAR_19 = bytestream_get_le32(&VAR_4);

            if(VAR_19 < 0 || VAR_19 > (1 << VAR_10)){

                av_log(VAR_0, AV_LOG_ERROR, "Incorrect number of VAR_18 - %X for bitdepth %d\VAR_14", VAR_19, VAR_10);

            }else if(VAR_19){

                VAR_18 = VAR_19;

            }

        }

        VAR_4 = VAR_17 + 14 + VAR_11; 

        if((VAR_7-VAR_11-14) < (VAR_18 << 2)){ 

            for(VAR_12 = 0; VAR_12 < VAR_18; VAR_12++)

                ((uint32_t*)p->VAR_1[1])[VAR_12] = (0xff<<24) | bytestream_get_le24(&VAR_4);

        }else{

            for(VAR_12 = 0; VAR_12 < VAR_18; VAR_12++)

                ((uint32_t*)p->VAR_1[1])[VAR_12] = 0xFFU << 24 | bytestream_get_le32(&VAR_4);

        }

        VAR_4 = VAR_17 + VAR_7;

    }

    if(comp == BMP_RLE4 || comp == BMP_RLE8){

        if(VAR_9 < 0){

            p->VAR_1[0] += p->VAR_15[0] * (VAR_0->VAR_9 - 1);

            p->VAR_15[0] = -p->VAR_15[0];

        }

        bytestream2_init(&gb, VAR_4, VAR_16);

        ff_msrle_decode(VAR_0, (AVPicture*)p, VAR_10, &gb);

        if(VAR_9 < 0){

            p->VAR_1[0] += p->VAR_15[0] * (VAR_0->VAR_9 - 1);

            p->VAR_15[0] = -p->VAR_15[0];

        }

    }else{

        switch(VAR_10){

        case 1:

            for (VAR_12 = 0; VAR_12 < VAR_0->VAR_9; VAR_12++) {

                int VAR_13;

                for (VAR_13 = 0; VAR_13 < VAR_14; VAR_13++) {

                    ptr[VAR_13*8+0] =  VAR_4[VAR_13] >> 7;

                    ptr[VAR_13*8+1] = (VAR_4[VAR_13] >> 6) & 1;

                    ptr[VAR_13*8+2] = (VAR_4[VAR_13] >> 5) & 1;

                    ptr[VAR_13*8+3] = (VAR_4[VAR_13] >> 4) & 1;

                    ptr[VAR_13*8+4] = (VAR_4[VAR_13] >> 3) & 1;

                    ptr[VAR_13*8+5] = (VAR_4[VAR_13] >> 2) & 1;

                    ptr[VAR_13*8+6] = (VAR_4[VAR_13] >> 1) & 1;

                    ptr[VAR_13*8+7] =  VAR_4[VAR_13]       & 1;

                }

                VAR_4 += VAR_14;

                ptr += VAR_15;

            }

            break;

        case 8:

        case 24:

        case 32:

            for(VAR_12 = 0; VAR_12 < VAR_0->VAR_9; VAR_12++){

                memcpy(ptr, VAR_4, VAR_14);

                VAR_4 += VAR_14;

                ptr += VAR_15;

            }

            break;

        case 4:

            for(VAR_12 = 0; VAR_12 < VAR_0->VAR_9; VAR_12++){

                int VAR_13;

                for(VAR_13 = 0; VAR_13 < VAR_14; VAR_13++){

                    ptr[VAR_13*2+0] = (VAR_4[VAR_13] >> 4) & 0xF;

                    ptr[VAR_13*2+1] = VAR_4[VAR_13] & 0xF;

                }

                VAR_4 += VAR_14;

                ptr += VAR_15;

            }

            break;

        case 16:

            for(VAR_12 = 0; VAR_12 < VAR_0->VAR_9; VAR_12++){

                const uint16_t *src = (const uint16_t *) VAR_4;

                uint16_t *dst = (uint16_t *) ptr;



                for(VAR_13 = 0; VAR_13 < VAR_0->VAR_8; VAR_13++)

                    *dst++ = av_le2ne16(*src++);



                VAR_4 += VAR_14;

                ptr += VAR_15;

            }

            break;

        default:

            av_log(VAR_0, AV_LOG_ERROR, "BMP decoder is broken\VAR_14");

            return -1;

        }

    }



    *picture = s->picture;

    *VAR_2 = sizeof(AVPicture);



    return VAR_5;

}

static int FUNC_0(AVCodecContext *VAR_0,
void *VAR_1, int *VAR_2,
AVPacket *VAR_3)
{ const uint8_t *VAR_4 = VAR_3->VAR_1; int VAR_5 = VAR_3->size; BMPContext *s = VAR_0->priv_data; AVFrame *picture = VAR_1; AVFrame *p = &s->picture; unsigned int VAR_6, VAR_7; int VAR_8, VAR_9; unsigned int VAR_10; BiCompression comp; unsigned int VAR_11; int VAR_12, VAR_13, VAR_14, VAR_15; uint32_t rgb[3]; uint32_t alpha = 0; uint8_t *ptr; int VAR_16; const uint8_t *VAR_17 = VAR_4; GetByteContext gb; if(VAR_5 < 14){ av_log(VAR_0, AV_LOG_ERROR, "VAR_4 size too small (%d)\VAR_14", VAR_5); return -1; } if(bytestream_get_byte(&VAR_4) != 'B' ||
bytestream_get_byte(&VAR_4) != 'M') { av_log(VAR_0, AV_LOG_ERROR, "bad magic number\VAR_14"); return -1; } VAR_6 = bytestream_get_le32(&VAR_4); if(VAR_5 < VAR_6){ av_log(VAR_0, AV_LOG_ERROR, "not enough VAR_1 (%d < %d), trying to decode anyway\VAR_14",
VAR_5, VAR_6); VAR_6 = VAR_5; } VAR_4 += 2; VAR_4 += 2; VAR_7 = bytestream_get_le32(&VAR_4); VAR_11 = bytestream_get_le32(&VAR_4); if(VAR_11 + 14 > VAR_7){ av_log(VAR_0, AV_LOG_ERROR, "invalid header size %d\VAR_14", VAR_7); return -1; } if(VAR_6 == 14 || VAR_6 == VAR_11 + 14)
VAR_6 = VAR_5 - 2; if(VAR_6 <= VAR_7){ av_log(VAR_0, AV_LOG_ERROR, "declared file size is less than header size (%d < %d)\VAR_14",
VAR_6, VAR_7); return -1; } switch(VAR_11){ case  40:
case  56:  v3
case  64:
case 108:  v4
case 124:  v5
VAR_8 = bytestream_get_le32(&VAR_4); VAR_9 = bytestream_get_le32(&VAR_4); break; case  12:
VAR_8  = bytestream_get_le16(&VAR_4); VAR_9 = bytestream_get_le16(&VAR_4); break; default:
av_log(VAR_0, AV_LOG_ERROR, "unsupported BMP file, patch welcome\VAR_14"); return -1; } if(bytestream_get_le16(&VAR_4) != 1){ av_log(VAR_0, AV_LOG_ERROR, "invalid BMP header\VAR_14"); return -1; } VAR_10 = bytestream_get_le16(&VAR_4); if (VAR_11 >= 40)
comp = bytestream_get_le32(&VAR_4); else
comp = BMP_RGB; if(comp != BMP_RGB && comp != BMP_BITFIELDS && comp != BMP_RLE4 && comp != BMP_RLE8){ av_log(VAR_0, AV_LOG_ERROR, "BMP coding %d not supported\VAR_14", comp); return -1; } if(comp == BMP_BITFIELDS){ VAR_4 += 20; rgb[0] = bytestream_get_le32(&VAR_4); rgb[1] = bytestream_get_le32(&VAR_4); rgb[2] = bytestream_get_le32(&VAR_4); alpha = bytestream_get_le32(&VAR_4); } VAR_0->VAR_8 = VAR_8; VAR_0->VAR_9 = VAR_9 > 0? VAR_9: -VAR_9; VAR_0->pix_fmt = AV_PIX_FMT_NONE; switch(VAR_10){ case 32:
if(comp == BMP_BITFIELDS){ if (rgb[0] == 0xFF000000 && rgb[1] == 0x00FF0000 && rgb[2] == 0x0000FF00)
VAR_0->pix_fmt = alpha ? AV_PIX_FMT_ABGR : AV_PIX_FMT_0BGR; else if (rgb[0] == 0x00FF0000 && rgb[1] == 0x0000FF00 && rgb[2] == 0x000000FF)
VAR_0->pix_fmt = alpha ? AV_PIX_FMT_BGRA : AV_PIX_FMT_BGR0; else if (rgb[0] == 0x0000FF00 && rgb[1] == 0x00FF0000 && rgb[2] == 0xFF000000)
VAR_0->pix_fmt = alpha ? AV_PIX_FMT_ARGB : AV_PIX_FMT_0RGB; else if (rgb[0] == 0x000000FF && rgb[1] == 0x0000FF00 && rgb[2] == 0x00FF0000)
VAR_0->pix_fmt = alpha ? AV_PIX_FMT_RGBA : AV_PIX_FMT_RGB0; else { av_log(VAR_0, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\VAR_14", rgb[0], rgb[1], rgb[2]); return AVERROR(EINVAL); } } else { VAR_0->pix_fmt = AV_PIX_FMT_BGRA; } break; case 24:
VAR_0->pix_fmt = AV_PIX_FMT_BGR24; break; case 16:
if(comp == BMP_RGB)
VAR_0->pix_fmt = AV_PIX_FMT_RGB555; else if (comp == BMP_BITFIELDS) { if (rgb[0] == 0xF800 && rgb[1] == 0x07E0 && rgb[2] == 0x001F)
VAR_0->pix_fmt = AV_PIX_FMT_RGB565; else if (rgb[0] == 0x7C00 && rgb[1] == 0x03E0 && rgb[2] == 0x001F)
VAR_0->pix_fmt = AV_PIX_FMT_RGB555; else if (rgb[0] == 0x0F00 && rgb[1] == 0x00F0 && rgb[2] == 0x000F)
VAR_0->pix_fmt = AV_PIX_FMT_RGB444; else { av_log(VAR_0, AV_LOG_ERROR, "Unknown bitfields %0X %0X %0X\VAR_14", rgb[0], rgb[1], rgb[2]); return AVERROR(EINVAL); } } break; case 8:
if(VAR_7 - VAR_11 - 14 > 0)
VAR_0->pix_fmt = AV_PIX_FMT_PAL8; else
VAR_0->pix_fmt = AV_PIX_FMT_GRAY8; break; case 1:
case 4:
if(VAR_7 - VAR_11 - 14 > 0){ VAR_0->pix_fmt = AV_PIX_FMT_PAL8; }else{ av_log(VAR_0, AV_LOG_ERROR, "Unknown palette for %d-colour BMP\VAR_14", 1<<VAR_10); return -1; } break; default:
av_log(VAR_0, AV_LOG_ERROR, "VAR_10 %d not supported\VAR_14", VAR_10); return -1; } if(VAR_0->pix_fmt == AV_PIX_FMT_NONE){ av_log(VAR_0, AV_LOG_ERROR, "unsupported pixel format\VAR_14"); return -1; } if(p->VAR_1[0])
VAR_0->release_buffer(VAR_0, p); p->reference = 0; if(VAR_0->get_buffer(VAR_0, p) < 0){ av_log(VAR_0, AV_LOG_ERROR, "get_buffer() failed\VAR_14"); return -1; } p->pict_type = AV_PICTURE_TYPE_I; p->key_frame = 1; VAR_4 = VAR_17 + VAR_7; VAR_16 = VAR_5 - VAR_7; VAR_14 = ((VAR_0->VAR_8 * VAR_10 + 31) / 8) & ~3; if(VAR_14 * VAR_0->VAR_9 > VAR_16 && comp != BMP_RLE4 && comp != BMP_RLE8){ av_log(VAR_0, AV_LOG_ERROR, "not enough VAR_1 (%d < %d)\VAR_14",
VAR_16, VAR_14 * VAR_0->VAR_9); return -1; } if(comp == BMP_RLE4 || comp == BMP_RLE8)
memset(p->VAR_1[0], 0, VAR_0->VAR_9 * p->VAR_15[0]); if(VAR_9 > 0){ ptr = p->VAR_1[0] + (VAR_0->VAR_9 - 1) * p->VAR_15[0]; VAR_15 = -p->VAR_15[0]; } else { ptr = p->VAR_1[0]; VAR_15 = p->VAR_15[0]; } if(VAR_0->pix_fmt == AV_PIX_FMT_PAL8){ int VAR_18 = 1 << VAR_10; memset(p->VAR_1[1], 0, 1024); if(VAR_11 >= 36){ int VAR_19; VAR_4 = VAR_17 + 46; VAR_19 = bytestream_get_le32(&VAR_4); if(VAR_19 < 0 || VAR_19 > (1 << VAR_10)){ av_log(VAR_0, AV_LOG_ERROR, "Incorrect number of VAR_18 - %X for bitdepth %d\VAR_14", VAR_19, VAR_10); }else if(VAR_19){ VAR_18 = VAR_19; } } VAR_4 = VAR_17 + 14 + VAR_11; if((VAR_7-VAR_11-14) < (VAR_18 << 2)){ for(VAR_12 = 0; VAR_12 < VAR_18; VAR_12++) ((uint32_t*)p->VAR_1[1])[VAR_12] = (0xff<<24) | bytestream_get_le24(&VAR_4); }else{ for(VAR_12 = 0; VAR_12 < VAR_18; VAR_12++) ((uint32_t*)p->VAR_1[1])[VAR_12] = 0xFFU << 24 | bytestream_get_le32(&VAR_4); } VAR_4 = VAR_17 + VAR_7; } if(comp == BMP_RLE4 || comp == BMP_RLE8){ if(VAR_9 < 0){ p->VAR_1[0] += p->VAR_15[0] * (VAR_0->VAR_9 - 1); p->VAR_15[0] = -p->VAR_15[0]; } bytestream2_init(&gb, VAR_4, VAR_16); ff_msrle_decode(VAR_0, (AVPicture*)p, VAR_10, &gb); if(VAR_9 < 0){ p->VAR_1[0] += p->VAR_15[0] * (VAR_0->VAR_9 - 1); p->VAR_15[0] = -p->VAR_15[0]; } }else{ switch(VAR_10){ case 1:
for (VAR_12 = 0; VAR_12 < VAR_0->VAR_9; VAR_12++) { int VAR_13; for (VAR_13 = 0; VAR_13 < VAR_14; VAR_13++) { ptr[VAR_13*8+0] =  VAR_4[VAR_13] >> 7; ptr[VAR_13*8+1] = (VAR_4[VAR_13] >> 6) & 1; ptr[VAR_13*8+2] = (VAR_4[VAR_13] >> 5) & 1; ptr[VAR_13*8+3] = (VAR_4[VAR_13] >> 4) & 1; ptr[VAR_13*8+4] = (VAR_4[VAR_13] >> 3) & 1; ptr[VAR_13*8+5] = (VAR_4[VAR_13] >> 2) & 1; ptr[VAR_13*8+6] = (VAR_4[VAR_13] >> 1) & 1; ptr[VAR_13*8+7] =  VAR_4[VAR_13]       & 1; } VAR_4 += VAR_14; ptr += VAR_15; } break; case 8:
case 24:
case 32:
for(VAR_12 = 0; VAR_12 < VAR_0->VAR_9; VAR_12++){ memcpy(ptr, VAR_4, VAR_14); VAR_4 += VAR_14; ptr += VAR_15; } break; case 4:
for(VAR_12 = 0; VAR_12 < VAR_0->VAR_9; VAR_12++){ int VAR_13; for(VAR_13 = 0; VAR_13 < VAR_14; VAR_13++){ ptr[VAR_13*2+0] = (VAR_4[VAR_13] >> 4) & 0xF; ptr[VAR_13*2+1] = VAR_4[VAR_13] & 0xF; } VAR_4 += VAR_14; ptr += VAR_15; } break; case 16:
for(VAR_12 = 0; VAR_12 < VAR_0->VAR_9; VAR_12++){ const uint16_t *src = (const uint16_t *) VAR_4; uint16_t *dst = (uint16_t *) ptr; for(VAR_13 = 0; VAR_13 < VAR_0->VAR_8; VAR_13++) *dst++ = av_le2ne16(*src++); VAR_4 += VAR_14; ptr += VAR_15; } break; default:
av_log(VAR_0, AV_LOG_ERROR, "BMP decoder is broken\VAR_14"); return -1; } } *picture = s->picture; *VAR_2 = sizeof(AVPicture); return VAR_5; }