static int flic_decode_frame_8BPP(AVCodecContext *avctx,

                                  void *data, int *data_size,

                                  const uint8_t *buf, int buf_size)

{

    FlicDecodeContext *s = avctx->priv_data;



    int stream_ptr = 0;

    int pixel_ptr;

    int palette_ptr;

    unsigned char palette_idx1;

    unsigned char palette_idx2;



    unsigned int frame_size;

    int num_chunks;



    unsigned int chunk_size;

    int chunk_type;



    int i, j;



    int color_packets;

    int color_changes;

    int color_shift;

    unsigned char r, g, b;



    int lines;

    int compressed_lines;

    int starting_line;

    signed short line_packets;

    int y_ptr;

    int byte_run;

    int pixel_skip;

    int pixel_countdown;

    unsigned char *pixels;

    unsigned int pixel_limit;



    s->frame.reference = 3;

    s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;

    if (avctx->reget_buffer(avctx, &s->frame) < 0) {

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

        return -1;

    }



    pixels = s->frame.data[0];

    pixel_limit = s->avctx->height * s->frame.linesize[0];



    if (buf_size < 16 || buf_size > INT_MAX - (3 * 256 + FF_INPUT_BUFFER_PADDING_SIZE))

        return AVERROR_INVALIDDATA;

    frame_size = AV_RL32(&buf[stream_ptr]);

    if (frame_size > buf_size)

        frame_size = buf_size;

    stream_ptr += 6;  /* skip the magic number */

    num_chunks = AV_RL16(&buf[stream_ptr]);

    stream_ptr += 10;  /* skip padding */



    frame_size -= 16;



    /* iterate through the chunks */

    while ((frame_size >= 6) && (num_chunks > 0)) {

        int stream_ptr_after_chunk;

        chunk_size = AV_RL32(&buf[stream_ptr]);

        if (chunk_size > frame_size) {

            av_log(avctx, AV_LOG_WARNING,

                   "Invalid chunk_size = %u > frame_size = %u\n", chunk_size, frame_size);

            chunk_size = frame_size;

        }

        stream_ptr_after_chunk = stream_ptr + chunk_size;



        stream_ptr += 4;

        chunk_type = AV_RL16(&buf[stream_ptr]);

        stream_ptr += 2;



        switch (chunk_type) {

        case FLI_256_COLOR:

        case FLI_COLOR:

            /* check special case: If this file is from the Magic Carpet

             * game and uses 6-bit colors even though it reports 256-color

             * chunks in a 0xAF12-type file (fli_type is set to 0xAF13 during

             * initialization) */

            if ((chunk_type == FLI_256_COLOR) && (s->fli_type != FLC_MAGIC_CARPET_SYNTHETIC_TYPE_CODE))

                color_shift = 0;

            else

                color_shift = 2;

            /* set up the palette */

            color_packets = AV_RL16(&buf[stream_ptr]);

            stream_ptr += 2;

            palette_ptr = 0;

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

                /* first byte is how many colors to skip */

                palette_ptr += buf[stream_ptr++];



                /* next byte indicates how many entries to change */

                color_changes = buf[stream_ptr++];



                /* if there are 0 color changes, there are actually 256 */

                if (color_changes == 0)

                    color_changes = 256;



                if (stream_ptr + color_changes * 3 > stream_ptr_after_chunk)

                    break;



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

                    unsigned int entry;



                    /* wrap around, for good measure */

                    if ((unsigned)palette_ptr >= 256)

                        palette_ptr = 0;



                    r = buf[stream_ptr++] << color_shift;

                    g = buf[stream_ptr++] << color_shift;

                    b = buf[stream_ptr++] << color_shift;

                    entry = 0xFF << 24 | r << 16 | g << 8 | b;

                    if (color_shift == 2)

                        entry |= entry >> 6 & 0x30303;

                    if (s->palette[palette_ptr] != entry)

                        s->new_palette = 1;

                    s->palette[palette_ptr++] = entry;

                }

            }

            break;



        case FLI_DELTA:

            y_ptr = 0;

            compressed_lines = AV_RL16(&buf[stream_ptr]);

            stream_ptr += 2;

            while (compressed_lines > 0) {

                if (stream_ptr + 2 > stream_ptr_after_chunk)

                    break;

                line_packets = AV_RL16(&buf[stream_ptr]);

                stream_ptr += 2;

                if ((line_packets & 0xC000) == 0xC000) {

                    // line skip opcode

                    line_packets = -line_packets;

                    y_ptr += line_packets * s->frame.linesize[0];

                } else if ((line_packets & 0xC000) == 0x4000) {

                    av_log(avctx, AV_LOG_ERROR, "Undefined opcode (%x) in DELTA_FLI\n", line_packets);

                } else if ((line_packets & 0xC000) == 0x8000) {

                    // "last byte" opcode

                    pixel_ptr= y_ptr + s->frame.linesize[0] - 1;

                    CHECK_PIXEL_PTR(0);

                    pixels[pixel_ptr] = line_packets & 0xff;

                } else {

                    compressed_lines--;

                    pixel_ptr = y_ptr;

                    CHECK_PIXEL_PTR(0);

                    pixel_countdown = s->avctx->width;

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

                        if (stream_ptr + 2 > stream_ptr_after_chunk)

                            break;

                        /* account for the skip bytes */

                        pixel_skip = buf[stream_ptr++];

                        pixel_ptr += pixel_skip;

                        pixel_countdown -= pixel_skip;

                        byte_run = (signed char)(buf[stream_ptr++]);

                        if (byte_run < 0) {

                            byte_run = -byte_run;

                            palette_idx1 = buf[stream_ptr++];

                            palette_idx2 = buf[stream_ptr++];

                            CHECK_PIXEL_PTR(byte_run * 2);

                            for (j = 0; j < byte_run; j++, pixel_countdown -= 2) {

                                pixels[pixel_ptr++] = palette_idx1;

                                pixels[pixel_ptr++] = palette_idx2;

                            }

                        } else {

                            CHECK_PIXEL_PTR(byte_run * 2);

                            if (stream_ptr + byte_run * 2 > stream_ptr_after_chunk)

                                break;

                            for (j = 0; j < byte_run * 2; j++, pixel_countdown--) {

                                palette_idx1 = buf[stream_ptr++];

                                pixels[pixel_ptr++] = palette_idx1;

                            }

                        }

                    }



                    y_ptr += s->frame.linesize[0];

                }

            }

            break;



        case FLI_LC:

            /* line compressed */

            starting_line = AV_RL16(&buf[stream_ptr]);

            stream_ptr += 2;

            y_ptr = 0;

            y_ptr += starting_line * s->frame.linesize[0];



            compressed_lines = AV_RL16(&buf[stream_ptr]);

            stream_ptr += 2;

            while (compressed_lines > 0) {

                pixel_ptr = y_ptr;

                CHECK_PIXEL_PTR(0);

                pixel_countdown = s->avctx->width;

                line_packets = buf[stream_ptr++];

                if (stream_ptr + 2 * line_packets > stream_ptr_after_chunk)

                    break;

                if (line_packets > 0) {

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

                        /* account for the skip bytes */

                        pixel_skip = buf[stream_ptr++];

                        pixel_ptr += pixel_skip;

                        pixel_countdown -= pixel_skip;

                        byte_run = (signed char)(buf[stream_ptr++]);

                        if (byte_run > 0) {

                            CHECK_PIXEL_PTR(byte_run);

                            if (stream_ptr + byte_run > stream_ptr_after_chunk)

                                break;

                            for (j = 0; j < byte_run; j++, pixel_countdown--) {

                                palette_idx1 = buf[stream_ptr++];

                                pixels[pixel_ptr++] = palette_idx1;

                            }

                        } else if (byte_run < 0) {

                            byte_run = -byte_run;

                            palette_idx1 = buf[stream_ptr++];

                            CHECK_PIXEL_PTR(byte_run);

                            for (j = 0; j < byte_run; j++, pixel_countdown--) {

                                pixels[pixel_ptr++] = palette_idx1;

                            }

                        }

                    }

                }



                y_ptr += s->frame.linesize[0];

                compressed_lines--;

            }

            break;



        case FLI_BLACK:

            /* set the whole frame to color 0 (which is usually black) */

            memset(pixels, 0,

                s->frame.linesize[0] * s->avctx->height);

            break;



        case FLI_BRUN:

            /* Byte run compression: This chunk type only occurs in the first

             * FLI frame and it will update the entire frame. */

            y_ptr = 0;

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

                pixel_ptr = y_ptr;

                /* disregard the line packets; instead, iterate through all

                 * pixels on a row */

                stream_ptr++;

                pixel_countdown = s->avctx->width;

                while (pixel_countdown > 0) {

                    if (stream_ptr + 1 > stream_ptr_after_chunk)

                        break;

                    byte_run = (signed char)(buf[stream_ptr++]);

                    if (byte_run > 0) {

                        palette_idx1 = buf[stream_ptr++];

                        CHECK_PIXEL_PTR(byte_run);

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

                            pixels[pixel_ptr++] = palette_idx1;

                            pixel_countdown--;

                            if (pixel_countdown < 0)

                                av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",

                                       pixel_countdown, lines);

                        }

                    } else {  /* copy bytes if byte_run < 0 */

                        byte_run = -byte_run;

                        CHECK_PIXEL_PTR(byte_run);

                        if (stream_ptr + byte_run > stream_ptr_after_chunk)

                            break;

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

                            palette_idx1 = buf[stream_ptr++];

                            pixels[pixel_ptr++] = palette_idx1;

                            pixel_countdown--;

                            if (pixel_countdown < 0)

                                av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",

                                       pixel_countdown, lines);

                        }

                    }

                }



                y_ptr += s->frame.linesize[0];

            }

            break;



        case FLI_COPY:

            /* copy the chunk (uncompressed frame) */

            if (chunk_size - 6 != s->avctx->width * s->avctx->height) {

                av_log(avctx, AV_LOG_ERROR, "In chunk FLI_COPY : source data (%d bytes) " \

                       "has incorrect size, skipping chunk\n", chunk_size - 6);

            } else {

                for (y_ptr = 0; y_ptr < s->frame.linesize[0] * s->avctx->height;

                     y_ptr += s->frame.linesize[0]) {

                    memcpy(&pixels[y_ptr], &buf[stream_ptr],

                        s->avctx->width);

                    stream_ptr += s->avctx->width;

                }

            }

            break;



        case FLI_MINI:

            /* some sort of a thumbnail? disregard this chunk... */

            break;



        default:

            av_log(avctx, AV_LOG_ERROR, "Unrecognized chunk type: %d\n", chunk_type);

            break;

        }



        stream_ptr = stream_ptr_after_chunk;



        frame_size -= chunk_size;

        num_chunks--;

    }



    /* by the end of the chunk, the stream ptr should equal the frame

     * size (minus 1, possibly); if it doesn't, issue a warning */

    if ((stream_ptr != buf_size) && (stream_ptr != buf_size - 1))

        av_log(avctx, AV_LOG_ERROR, "Processed FLI chunk where chunk size = %d " \

               "and final chunk ptr = %d\n", buf_size, stream_ptr);



    /* make the palette available on the way out */

    memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);

    if (s->new_palette) {

        s->frame.palette_has_changed = 1;

        s->new_palette = 0;

    }



    *data_size=sizeof(AVFrame);

    *(AVFrame*)data = s->frame;



    return buf_size;

}

static int flic_decode_frame_8BPP(AVCodecContext *avctx,

                                  void *data, int *data_size,

                                  const uint8_t *buf, int buf_size)

{

    FlicDecodeContext *s = avctx->priv_data;



    int stream_ptr = 0;

    int pixel_ptr;

    int palette_ptr;

    unsigned char palette_idx1;

    unsigned char palette_idx2;



    unsigned int frame_size;

    int num_chunks;



    unsigned int chunk_size;

    int chunk_type;



    int i, j;



    int color_packets;

    int color_changes;

    int color_shift;

    unsigned char r, g, b;



    int lines;

    int compressed_lines;

    int starting_line;

    signed short line_packets;

    int y_ptr;

    int byte_run;

    int pixel_skip;

    int pixel_countdown;

    unsigned char *pixels;

    unsigned int pixel_limit;



    s->frame.reference = 3;

    s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;

    if (avctx->reget_buffer(avctx, &s->frame) < 0) {

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

        return -1;

    }



    pixels = s->frame.data[0];

    pixel_limit = s->avctx->height * s->frame.linesize[0];



    if (buf_size < 16 || buf_size > INT_MAX - (3 * 256 + FF_INPUT_BUFFER_PADDING_SIZE))

        return AVERROR_INVALIDDATA;

    frame_size = AV_RL32(&buf[stream_ptr]);

    if (frame_size > buf_size)

        frame_size = buf_size;

    stream_ptr += 6;  

    num_chunks = AV_RL16(&buf[stream_ptr]);

    stream_ptr += 10;  



    frame_size -= 16;



    

    while ((frame_size >= 6) && (num_chunks > 0)) {

        int stream_ptr_after_chunk;

        chunk_size = AV_RL32(&buf[stream_ptr]);

        if (chunk_size > frame_size) {

            av_log(avctx, AV_LOG_WARNING,

                   "Invalid chunk_size = %u > frame_size = %u\n", chunk_size, frame_size);

            chunk_size = frame_size;

        }

        stream_ptr_after_chunk = stream_ptr + chunk_size;



        stream_ptr += 4;

        chunk_type = AV_RL16(&buf[stream_ptr]);

        stream_ptr += 2;



        switch (chunk_type) {

        case FLI_256_COLOR:

        case FLI_COLOR:

            







            if ((chunk_type == FLI_256_COLOR) && (s->fli_type != FLC_MAGIC_CARPET_SYNTHETIC_TYPE_CODE))

                color_shift = 0;

            else

                color_shift = 2;

            

            color_packets = AV_RL16(&buf[stream_ptr]);

            stream_ptr += 2;

            palette_ptr = 0;

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

                

                palette_ptr += buf[stream_ptr++];



                

                color_changes = buf[stream_ptr++];



                

                if (color_changes == 0)

                    color_changes = 256;



                if (stream_ptr + color_changes * 3 > stream_ptr_after_chunk)

                    break;



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

                    unsigned int entry;



                    

                    if ((unsigned)palette_ptr >= 256)

                        palette_ptr = 0;



                    r = buf[stream_ptr++] << color_shift;

                    g = buf[stream_ptr++] << color_shift;

                    b = buf[stream_ptr++] << color_shift;

                    entry = 0xFF << 24 | r << 16 | g << 8 | b;

                    if (color_shift == 2)

                        entry |= entry >> 6 & 0x30303;

                    if (s->palette[palette_ptr] != entry)

                        s->new_palette = 1;

                    s->palette[palette_ptr++] = entry;

                }

            }

            break;



        case FLI_DELTA:

            y_ptr = 0;

            compressed_lines = AV_RL16(&buf[stream_ptr]);

            stream_ptr += 2;

            while (compressed_lines > 0) {

                if (stream_ptr + 2 > stream_ptr_after_chunk)

                    break;

                line_packets = AV_RL16(&buf[stream_ptr]);

                stream_ptr += 2;

                if ((line_packets & 0xC000) == 0xC000) {

                    

                    line_packets = -line_packets;

                    y_ptr += line_packets * s->frame.linesize[0];

                } else if ((line_packets & 0xC000) == 0x4000) {

                    av_log(avctx, AV_LOG_ERROR, "Undefined opcode (%x) in DELTA_FLI\n", line_packets);

                } else if ((line_packets & 0xC000) == 0x8000) {

                    

                    pixel_ptr= y_ptr + s->frame.linesize[0] - 1;

                    CHECK_PIXEL_PTR(0);

                    pixels[pixel_ptr] = line_packets & 0xff;

                } else {

                    compressed_lines--;

                    pixel_ptr = y_ptr;

                    CHECK_PIXEL_PTR(0);

                    pixel_countdown = s->avctx->width;

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

                        if (stream_ptr + 2 > stream_ptr_after_chunk)

                            break;

                        

                        pixel_skip = buf[stream_ptr++];

                        pixel_ptr += pixel_skip;

                        pixel_countdown -= pixel_skip;

                        byte_run = (signed char)(buf[stream_ptr++]);

                        if (byte_run < 0) {

                            byte_run = -byte_run;

                            palette_idx1 = buf[stream_ptr++];

                            palette_idx2 = buf[stream_ptr++];

                            CHECK_PIXEL_PTR(byte_run * 2);

                            for (j = 0; j < byte_run; j++, pixel_countdown -= 2) {

                                pixels[pixel_ptr++] = palette_idx1;

                                pixels[pixel_ptr++] = palette_idx2;

                            }

                        } else {

                            CHECK_PIXEL_PTR(byte_run * 2);

                            if (stream_ptr + byte_run * 2 > stream_ptr_after_chunk)

                                break;

                            for (j = 0; j < byte_run * 2; j++, pixel_countdown--) {

                                palette_idx1 = buf[stream_ptr++];

                                pixels[pixel_ptr++] = palette_idx1;

                            }

                        }

                    }



                    y_ptr += s->frame.linesize[0];

                }

            }

            break;



        case FLI_LC:

            

            starting_line = AV_RL16(&buf[stream_ptr]);

            stream_ptr += 2;

            y_ptr = 0;

            y_ptr += starting_line * s->frame.linesize[0];



            compressed_lines = AV_RL16(&buf[stream_ptr]);

            stream_ptr += 2;

            while (compressed_lines > 0) {

                pixel_ptr = y_ptr;

                CHECK_PIXEL_PTR(0);

                pixel_countdown = s->avctx->width;

                line_packets = buf[stream_ptr++];

                if (stream_ptr + 2 * line_packets > stream_ptr_after_chunk)

                    break;

                if (line_packets > 0) {

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

                        

                        pixel_skip = buf[stream_ptr++];

                        pixel_ptr += pixel_skip;

                        pixel_countdown -= pixel_skip;

                        byte_run = (signed char)(buf[stream_ptr++]);

                        if (byte_run > 0) {

                            CHECK_PIXEL_PTR(byte_run);

                            if (stream_ptr + byte_run > stream_ptr_after_chunk)

                                break;

                            for (j = 0; j < byte_run; j++, pixel_countdown--) {

                                palette_idx1 = buf[stream_ptr++];

                                pixels[pixel_ptr++] = palette_idx1;

                            }

                        } else if (byte_run < 0) {

                            byte_run = -byte_run;

                            palette_idx1 = buf[stream_ptr++];

                            CHECK_PIXEL_PTR(byte_run);

                            for (j = 0; j < byte_run; j++, pixel_countdown--) {

                                pixels[pixel_ptr++] = palette_idx1;

                            }

                        }

                    }

                }



                y_ptr += s->frame.linesize[0];

                compressed_lines--;

            }

            break;



        case FLI_BLACK:

            

            memset(pixels, 0,

                s->frame.linesize[0] * s->avctx->height);

            break;



        case FLI_BRUN:

            



            y_ptr = 0;

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

                pixel_ptr = y_ptr;

                



                stream_ptr++;

                pixel_countdown = s->avctx->width;

                while (pixel_countdown > 0) {

                    if (stream_ptr + 1 > stream_ptr_after_chunk)

                        break;

                    byte_run = (signed char)(buf[stream_ptr++]);

                    if (byte_run > 0) {

                        palette_idx1 = buf[stream_ptr++];

                        CHECK_PIXEL_PTR(byte_run);

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

                            pixels[pixel_ptr++] = palette_idx1;

                            pixel_countdown--;

                            if (pixel_countdown < 0)

                                av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",

                                       pixel_countdown, lines);

                        }

                    } else {  

                        byte_run = -byte_run;

                        CHECK_PIXEL_PTR(byte_run);

                        if (stream_ptr + byte_run > stream_ptr_after_chunk)

                            break;

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

                            palette_idx1 = buf[stream_ptr++];

                            pixels[pixel_ptr++] = palette_idx1;

                            pixel_countdown--;

                            if (pixel_countdown < 0)

                                av_log(avctx, AV_LOG_ERROR, "pixel_countdown < 0 (%d) at line %d\n",

                                       pixel_countdown, lines);

                        }

                    }

                }



                y_ptr += s->frame.linesize[0];

            }

            break;



        case FLI_COPY:

            

            if (chunk_size - 6 != s->avctx->width * s->avctx->height) {

                av_log(avctx, AV_LOG_ERROR, "In chunk FLI_COPY : source data (%d bytes) " \

                       "has incorrect size, skipping chunk\n", chunk_size - 6);

            } else {

                for (y_ptr = 0; y_ptr < s->frame.linesize[0] * s->avctx->height;

                     y_ptr += s->frame.linesize[0]) {

                    memcpy(&pixels[y_ptr], &buf[stream_ptr],

                        s->avctx->width);

                    stream_ptr += s->avctx->width;

                }

            }

            break;



        case FLI_MINI:

            

            break;



        default:

            av_log(avctx, AV_LOG_ERROR, "Unrecognized chunk type: %d\n", chunk_type);

            break;

        }



        stream_ptr = stream_ptr_after_chunk;



        frame_size -= chunk_size;

        num_chunks--;

    }



    



    if ((stream_ptr != buf_size) && (stream_ptr != buf_size - 1))

        av_log(avctx, AV_LOG_ERROR, "Processed FLI chunk where chunk size = %d " \

               "and final chunk ptr = %d\n", buf_size, stream_ptr);



    

    memcpy(s->frame.data[1], s->palette, AVPALETTE_SIZE);

    if (s->new_palette) {

        s->frame.palette_has_changed = 1;

        s->new_palette = 0;

    }



    *data_size=sizeof(AVFrame);

    *(AVFrame*)data = s->frame;



    return buf_size;

}

                line_packets = buf[stream_ptr++];                 if (stream_ptr + 2 * line_packets > stream_ptr_after_chunk)
static int FUNC_0(AVCodecContext *VAR_0,

                                  void *VAR_1, int *VAR_2,

                                  const uint8_t *VAR_3, int VAR_4)

{

    FlicDecodeContext *s = VAR_0->priv_data;



    int VAR_5 = 0;

    int VAR_6;

    int VAR_7;

    unsigned char VAR_8;

    unsigned char VAR_9;



    unsigned int VAR_10;

    int VAR_11;



    unsigned int VAR_12;

    int VAR_13;



    int VAR_14, VAR_15;



    int VAR_16;

    int VAR_17;

    int VAR_18;

    unsigned char VAR_19, VAR_20, VAR_21;



    int VAR_22;

    int VAR_23;

    int VAR_24;

    signed short VAR_25;

    int VAR_26;

    int VAR_27;

    int VAR_28;

    int VAR_29;

    unsigned char *VAR_30;

    unsigned int VAR_31;



    s->frame.reference = 3;

    s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;

    if (VAR_0->reget_buffer(VAR_0, &s->frame) < 0) {

        av_log(VAR_0, AV_LOG_ERROR, "reget_buffer() failed\n");

        return -1;

    }



    VAR_30 = s->frame.VAR_1[0];

    VAR_31 = s->VAR_0->height * s->frame.linesize[0];



    if (VAR_4 < 16 || VAR_4 > INT_MAX - (3 * 256 + FF_INPUT_BUFFER_PADDING_SIZE))

        return AVERROR_INVALIDDATA;

    VAR_10 = AV_RL32(&VAR_3[VAR_5]);

    if (VAR_10 > VAR_4)

        VAR_10 = VAR_4;

    VAR_5 += 6;  

    VAR_11 = AV_RL16(&VAR_3[VAR_5]);

    VAR_5 += 10;  



    VAR_10 -= 16;



    

    while ((VAR_10 >= 6) && (VAR_11 > 0)) {

        int VAR_32;

        VAR_12 = AV_RL32(&VAR_3[VAR_5]);

        if (VAR_12 > VAR_10) {

            av_log(VAR_0, AV_LOG_WARNING,

                   "Invalid VAR_12 = %u > VAR_10 = %u\n", VAR_12, VAR_10);

            VAR_12 = VAR_10;

        }

        VAR_32 = VAR_5 + VAR_12;



        VAR_5 += 4;

        VAR_13 = AV_RL16(&VAR_3[VAR_5]);

        VAR_5 += 2;



        switch (VAR_13) {

        case FLI_256_COLOR:

        case FLI_COLOR:

            







            if ((VAR_13 == FLI_256_COLOR) && (s->fli_type != FLC_MAGIC_CARPET_SYNTHETIC_TYPE_CODE))

                VAR_18 = 0;

            else

                VAR_18 = 2;

            

            VAR_16 = AV_RL16(&VAR_3[VAR_5]);

            VAR_5 += 2;

            VAR_7 = 0;

            for (VAR_14 = 0; VAR_14 < VAR_16; VAR_14++) {

                

                VAR_7 += VAR_3[VAR_5++];



                

                VAR_17 = VAR_3[VAR_5++];



                

                if (VAR_17 == 0)

                    VAR_17 = 256;



                if (VAR_5 + VAR_17 * 3 > VAR_32)

                    break;



                for (VAR_15 = 0; VAR_15 < VAR_17; VAR_15++) {

                    unsigned int VAR_33;



                    

                    if ((unsigned)VAR_7 >= 256)

                        VAR_7 = 0;



                    VAR_19 = VAR_3[VAR_5++] << VAR_18;

                    VAR_20 = VAR_3[VAR_5++] << VAR_18;

                    VAR_21 = VAR_3[VAR_5++] << VAR_18;

                    VAR_33 = 0xFF << 24 | VAR_19 << 16 | VAR_20 << 8 | VAR_21;

                    if (VAR_18 == 2)

                        VAR_33 |= VAR_33 >> 6 & 0x30303;

                    if (s->palette[VAR_7] != VAR_33)

                        s->new_palette = 1;

                    s->palette[VAR_7++] = VAR_33;

                }

            }

            break;



        case FLI_DELTA:

            VAR_26 = 0;

            VAR_23 = AV_RL16(&VAR_3[VAR_5]);

            VAR_5 += 2;

            while (VAR_23 > 0) {

                if (VAR_5 + 2 > VAR_32)

                    break;

                VAR_25 = AV_RL16(&VAR_3[VAR_5]);

                VAR_5 += 2;

                if ((VAR_25 & 0xC000) == 0xC000) {

                    

                    VAR_25 = -VAR_25;

                    VAR_26 += VAR_25 * s->frame.linesize[0];

                } else if ((VAR_25 & 0xC000) == 0x4000) {

                    av_log(VAR_0, AV_LOG_ERROR, "Undefined opcode (%x) in DELTA_FLI\n", VAR_25);

                } else if ((VAR_25 & 0xC000) == 0x8000) {

                    

                    VAR_6= VAR_26 + s->frame.linesize[0] - 1;

                    CHECK_PIXEL_PTR(0);

                    VAR_30[VAR_6] = VAR_25 & 0xff;

                } else {

                    VAR_23--;

                    VAR_6 = VAR_26;

                    CHECK_PIXEL_PTR(0);

                    VAR_29 = s->VAR_0->width;

                    for (VAR_14 = 0; VAR_14 < VAR_25; VAR_14++) {

                        if (VAR_5 + 2 > VAR_32)

                            break;

                        

                        VAR_28 = VAR_3[VAR_5++];

                        VAR_6 += VAR_28;

                        VAR_29 -= VAR_28;

                        VAR_27 = (signed char)(VAR_3[VAR_5++]);

                        if (VAR_27 < 0) {

                            VAR_27 = -VAR_27;

                            VAR_8 = VAR_3[VAR_5++];

                            VAR_9 = VAR_3[VAR_5++];

                            CHECK_PIXEL_PTR(VAR_27 * 2);

                            for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++, VAR_29 -= 2) {

                                VAR_30[VAR_6++] = VAR_8;

                                VAR_30[VAR_6++] = VAR_9;

                            }

                        } else {

                            CHECK_PIXEL_PTR(VAR_27 * 2);

                            if (VAR_5 + VAR_27 * 2 > VAR_32)

                                break;

                            for (VAR_15 = 0; VAR_15 < VAR_27 * 2; VAR_15++, VAR_29--) {

                                VAR_8 = VAR_3[VAR_5++];

                                VAR_30[VAR_6++] = VAR_8;

                            }

                        }

                    }



                    VAR_26 += s->frame.linesize[0];

                }

            }

            break;



        case FLI_LC:

            

            VAR_24 = AV_RL16(&VAR_3[VAR_5]);

            VAR_5 += 2;

            VAR_26 = 0;

            VAR_26 += VAR_24 * s->frame.linesize[0];



            VAR_23 = AV_RL16(&VAR_3[VAR_5]);

            VAR_5 += 2;

            while (VAR_23 > 0) {

                VAR_6 = VAR_26;

                CHECK_PIXEL_PTR(0);

                VAR_29 = s->VAR_0->width;

                VAR_25 = VAR_3[VAR_5++];

                if (VAR_5 + 2 * VAR_25 > VAR_32)

                    break;

                if (VAR_25 > 0) {

                    for (VAR_14 = 0; VAR_14 < VAR_25; VAR_14++) {

                        

                        VAR_28 = VAR_3[VAR_5++];

                        VAR_6 += VAR_28;

                        VAR_29 -= VAR_28;

                        VAR_27 = (signed char)(VAR_3[VAR_5++]);

                        if (VAR_27 > 0) {

                            CHECK_PIXEL_PTR(VAR_27);

                            if (VAR_5 + VAR_27 > VAR_32)

                                break;

                            for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++, VAR_29--) {

                                VAR_8 = VAR_3[VAR_5++];

                                VAR_30[VAR_6++] = VAR_8;

                            }

                        } else if (VAR_27 < 0) {

                            VAR_27 = -VAR_27;

                            VAR_8 = VAR_3[VAR_5++];

                            CHECK_PIXEL_PTR(VAR_27);

                            for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++, VAR_29--) {

                                VAR_30[VAR_6++] = VAR_8;

                            }

                        }

                    }

                }



                VAR_26 += s->frame.linesize[0];

                VAR_23--;

            }

            break;



        case FLI_BLACK:

            

            memset(VAR_30, 0,

                s->frame.linesize[0] * s->VAR_0->height);

            break;



        case FLI_BRUN:

            



            VAR_26 = 0;

            for (VAR_22 = 0; VAR_22 < s->VAR_0->height; VAR_22++) {

                VAR_6 = VAR_26;

                



                VAR_5++;

                VAR_29 = s->VAR_0->width;

                while (VAR_29 > 0) {

                    if (VAR_5 + 1 > VAR_32)

                        break;

                    VAR_27 = (signed char)(VAR_3[VAR_5++]);

                    if (VAR_27 > 0) {

                        VAR_8 = VAR_3[VAR_5++];

                        CHECK_PIXEL_PTR(VAR_27);

                        for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++) {

                            VAR_30[VAR_6++] = VAR_8;

                            VAR_29--;

                            if (VAR_29 < 0)

                                av_log(VAR_0, AV_LOG_ERROR, "VAR_29 < 0 (%d) at line %d\n",

                                       VAR_29, VAR_22);

                        }

                    } else {  

                        VAR_27 = -VAR_27;

                        CHECK_PIXEL_PTR(VAR_27);

                        if (VAR_5 + VAR_27 > VAR_32)

                            break;

                        for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++) {

                            VAR_8 = VAR_3[VAR_5++];

                            VAR_30[VAR_6++] = VAR_8;

                            VAR_29--;

                            if (VAR_29 < 0)

                                av_log(VAR_0, AV_LOG_ERROR, "VAR_29 < 0 (%d) at line %d\n",

                                       VAR_29, VAR_22);

                        }

                    }

                }



                VAR_26 += s->frame.linesize[0];

            }

            break;



        case FLI_COPY:

            

            if (VAR_12 - 6 != s->VAR_0->width * s->VAR_0->height) {

                av_log(VAR_0, AV_LOG_ERROR, "In chunk FLI_COPY : source VAR_1 (%d bytes) " \

                       "has incorrect size, skipping chunk\n", VAR_12 - 6);

            } else {

                for (VAR_26 = 0; VAR_26 < s->frame.linesize[0] * s->VAR_0->height;

                     VAR_26 += s->frame.linesize[0]) {

                    memcpy(&VAR_30[VAR_26], &VAR_3[VAR_5],

                        s->VAR_0->width);

                    VAR_5 += s->VAR_0->width;

                }

            }

            break;



        case FLI_MINI:

            

            break;



        default:

            av_log(VAR_0, AV_LOG_ERROR, "Unrecognized chunk type: %d\n", VAR_13);

            break;

        }



        VAR_5 = VAR_32;



        VAR_10 -= VAR_12;

        VAR_11--;

    }



    



    if ((VAR_5 != VAR_4) && (VAR_5 != VAR_4 - 1))

        av_log(VAR_0, AV_LOG_ERROR, "Processed FLI chunk where chunk size = %d " \

               "and final chunk ptr = %d\n", VAR_4, VAR_5);



    

    memcpy(s->frame.VAR_1[1], s->palette, AVPALETTE_SIZE);

    if (s->new_palette) {

        s->frame.palette_has_changed = 1;

        s->new_palette = 0;

    }



    *VAR_2=sizeof(AVFrame);

    *(AVFrame*)VAR_1 = s->frame;



    return VAR_4;

}

static int FUNC_0(AVCodecContext *VAR_0,
void *VAR_1, int *VAR_2,
const uint8_t *VAR_3, int VAR_4)
{ FlicDecodeContext *s = VAR_0->priv_data; int VAR_5 = 0; int VAR_6; int VAR_7; unsigned char VAR_8; unsigned char VAR_9; unsigned int VAR_10; int VAR_11; unsigned int VAR_12; int VAR_13; int VAR_14, VAR_15; int VAR_16; int VAR_17; int VAR_18; unsigned char VAR_19, VAR_20, VAR_21; int VAR_22; int VAR_23; int VAR_24; signed short VAR_25; int VAR_26; int VAR_27; int VAR_28; int VAR_29; unsigned char *VAR_30; unsigned int VAR_31; s->frame.reference = 3; s->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE; if (VAR_0->reget_buffer(VAR_0, &s->frame) < 0) { av_log(VAR_0, AV_LOG_ERROR, "reget_buffer() failed\n"); return -1; } VAR_30 = s->frame.VAR_1[0]; VAR_31 = s->VAR_0->height * s->frame.linesize[0]; if (VAR_4 < 16 || VAR_4 > INT_MAX - (3 * 256 + FF_INPUT_BUFFER_PADDING_SIZE))
return AVERROR_INVALIDDATA; VAR_10 = AV_RL32(&VAR_3[VAR_5]); if (VAR_10 > VAR_4)
VAR_10 = VAR_4; VAR_5 += 6; VAR_11 = AV_RL16(&VAR_3[VAR_5]); VAR_5 += 10; VAR_10 -= 16; while ((VAR_10 >= 6) && (VAR_11 > 0)) { int VAR_32; VAR_12 = AV_RL32(&VAR_3[VAR_5]); if (VAR_12 > VAR_10) { av_log(VAR_0, AV_LOG_WARNING,
"Invalid VAR_12 = %u > VAR_10 = %u\n", VAR_12, VAR_10); VAR_12 = VAR_10; } VAR_32 = VAR_5 + VAR_12; VAR_5 += 4; VAR_13 = AV_RL16(&VAR_3[VAR_5]); VAR_5 += 2; switch (VAR_13) { case FLI_256_COLOR:
case FLI_COLOR:
if ((VAR_13 == FLI_256_COLOR) && (s->fli_type != FLC_MAGIC_CARPET_SYNTHETIC_TYPE_CODE))
VAR_18 = 0; else
VAR_18 = 2; VAR_16 = AV_RL16(&VAR_3[VAR_5]); VAR_5 += 2; VAR_7 = 0; for (VAR_14 = 0; VAR_14 < VAR_16; VAR_14++) { VAR_7 += VAR_3[VAR_5++]; VAR_17 = VAR_3[VAR_5++]; if (VAR_17 == 0)
VAR_17 = 256; if (VAR_5 + VAR_17 * 3 > VAR_32)
break; for (VAR_15 = 0; VAR_15 < VAR_17; VAR_15++) { unsigned int VAR_33; if ((unsigned)VAR_7 >= 256)
VAR_7 = 0; VAR_19 = VAR_3[VAR_5++] << VAR_18; VAR_20 = VAR_3[VAR_5++] << VAR_18; VAR_21 = VAR_3[VAR_5++] << VAR_18; VAR_33 = 0xFF << 24 | VAR_19 << 16 | VAR_20 << 8 | VAR_21; if (VAR_18 == 2)
VAR_33 |= VAR_33 >> 6 & 0x30303; if (s->palette[VAR_7] != VAR_33)
s->new_palette = 1; s->palette[VAR_7++] = VAR_33; } } break; case FLI_DELTA:
VAR_26 = 0; VAR_23 = AV_RL16(&VAR_3[VAR_5]); VAR_5 += 2; while (VAR_23 > 0) { if (VAR_5 + 2 > VAR_32)
break; VAR_25 = AV_RL16(&VAR_3[VAR_5]); VAR_5 += 2; if ((VAR_25 & 0xC000) == 0xC000) { VAR_25 = -VAR_25; VAR_26 += VAR_25 * s->frame.linesize[0]; } else if ((VAR_25 & 0xC000) == 0x4000) { av_log(VAR_0, AV_LOG_ERROR, "Undefined opcode (%x) in DELTA_FLI\n", VAR_25); } else if ((VAR_25 & 0xC000) == 0x8000) { VAR_6= VAR_26 + s->frame.linesize[0] - 1; CHECK_PIXEL_PTR(0); VAR_30[VAR_6] = VAR_25 & 0xff; } else { VAR_23--; VAR_6 = VAR_26; CHECK_PIXEL_PTR(0); VAR_29 = s->VAR_0->width; for (VAR_14 = 0; VAR_14 < VAR_25; VAR_14++) { if (VAR_5 + 2 > VAR_32)
break; VAR_28 = VAR_3[VAR_5++]; VAR_6 += VAR_28; VAR_29 -= VAR_28; VAR_27 = (signed char)(VAR_3[VAR_5++]); if (VAR_27 < 0) { VAR_27 = -VAR_27; VAR_8 = VAR_3[VAR_5++]; VAR_9 = VAR_3[VAR_5++]; CHECK_PIXEL_PTR(VAR_27 * 2); for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++, VAR_29 -= 2) { VAR_30[VAR_6++] = VAR_8; VAR_30[VAR_6++] = VAR_9; } } else { CHECK_PIXEL_PTR(VAR_27 * 2); if (VAR_5 + VAR_27 * 2 > VAR_32)
break; for (VAR_15 = 0; VAR_15 < VAR_27 * 2; VAR_15++, VAR_29--) { VAR_8 = VAR_3[VAR_5++]; VAR_30[VAR_6++] = VAR_8; } } } VAR_26 += s->frame.linesize[0]; } } break; case FLI_LC:
VAR_24 = AV_RL16(&VAR_3[VAR_5]); VAR_5 += 2; VAR_26 = 0; VAR_26 += VAR_24 * s->frame.linesize[0]; VAR_23 = AV_RL16(&VAR_3[VAR_5]); VAR_5 += 2; while (VAR_23 > 0) { VAR_6 = VAR_26; CHECK_PIXEL_PTR(0); VAR_29 = s->VAR_0->width; VAR_25 = VAR_3[VAR_5++]; if (VAR_5 + 2 * VAR_25 > VAR_32)
break; if (VAR_25 > 0) { for (VAR_14 = 0; VAR_14 < VAR_25; VAR_14++) { VAR_28 = VAR_3[VAR_5++]; VAR_6 += VAR_28; VAR_29 -= VAR_28; VAR_27 = (signed char)(VAR_3[VAR_5++]); if (VAR_27 > 0) { CHECK_PIXEL_PTR(VAR_27); if (VAR_5 + VAR_27 > VAR_32)
break; for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++, VAR_29--) { VAR_8 = VAR_3[VAR_5++]; VAR_30[VAR_6++] = VAR_8; } } else if (VAR_27 < 0) { VAR_27 = -VAR_27; VAR_8 = VAR_3[VAR_5++]; CHECK_PIXEL_PTR(VAR_27); for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++, VAR_29--) { VAR_30[VAR_6++] = VAR_8; } } } } VAR_26 += s->frame.linesize[0]; VAR_23--; } break; case FLI_BLACK:
memset(VAR_30, 0,
s->frame.linesize[0] * s->VAR_0->height); break; case FLI_BRUN:
VAR_26 = 0; for (VAR_22 = 0; VAR_22 < s->VAR_0->height; VAR_22++) { VAR_6 = VAR_26; VAR_5++; VAR_29 = s->VAR_0->width; while (VAR_29 > 0) { if (VAR_5 + 1 > VAR_32)
break; VAR_27 = (signed char)(VAR_3[VAR_5++]); if (VAR_27 > 0) { VAR_8 = VAR_3[VAR_5++]; CHECK_PIXEL_PTR(VAR_27); for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++) { VAR_30[VAR_6++] = VAR_8; VAR_29--; if (VAR_29 < 0)
av_log(VAR_0, AV_LOG_ERROR, "VAR_29 < 0 (%d) at line %d\n",
VAR_29, VAR_22); } } else { VAR_27 = -VAR_27; CHECK_PIXEL_PTR(VAR_27); if (VAR_5 + VAR_27 > VAR_32)
break; for (VAR_15 = 0; VAR_15 < VAR_27; VAR_15++) { VAR_8 = VAR_3[VAR_5++]; VAR_30[VAR_6++] = VAR_8; VAR_29--; if (VAR_29 < 0)
av_log(VAR_0, AV_LOG_ERROR, "VAR_29 < 0 (%d) at line %d\n",
VAR_29, VAR_22); } } } VAR_26 += s->frame.linesize[0]; } break; case FLI_COPY:
if (VAR_12 - 6 != s->VAR_0->width * s->VAR_0->height) { av_log(VAR_0, AV_LOG_ERROR, "In chunk FLI_COPY : source VAR_1 (%d bytes) " \
"has incorrect size, skipping chunk\n", VAR_12 - 6); } else { for (VAR_26 = 0; VAR_26 < s->frame.linesize[0] * s->VAR_0->height; VAR_26 += s->frame.linesize[0]) { memcpy(&VAR_30[VAR_26], &VAR_3[VAR_5],
s->VAR_0->width); VAR_5 += s->VAR_0->width; } } break; case FLI_MINI:
break; default:
av_log(VAR_0, AV_LOG_ERROR, "Unrecognized chunk type: %d\n", VAR_13); break; } VAR_5 = VAR_32; VAR_10 -= VAR_12; VAR_11--; } if ((VAR_5 != VAR_4) && (VAR_5 != VAR_4 - 1))
av_log(VAR_0, AV_LOG_ERROR, "Processed FLI chunk where chunk size = %d " \
"and final chunk ptr = %d\n", VAR_4, VAR_5); memcpy(s->frame.VAR_1[1], s->palette, AVPALETTE_SIZE); if (s->new_palette) { s->frame.palette_has_changed = 1; s->new_palette = 0; } *VAR_2=sizeof(AVFrame); *(AVFrame*)VAR_1 = s->frame; return VAR_4; }