static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)

{

	LclContext * const c = (LclContext *)avctx->priv_data;

	unsigned char *encoded = (unsigned char *)buf;

    int pixel_ptr;

    int row, col;

    unsigned char *outptr;

    unsigned int width = avctx->width; // Real image width

    unsigned int height = avctx->height; // Real image height

    unsigned int mszh_dlen;

    unsigned char yq, y1q, uq, vq;

    int uqvq;

    unsigned int mthread_inlen, mthread_outlen;

#ifdef CONFIG_ZLIB

    int zret; // Zlib return code

#endif

    int len = buf_size;



	/* no supplementary picture */

	if (buf_size == 0)

		return 0;



	if(c->pic.data[0])

		avctx->release_buffer(avctx, &c->pic);



	c->pic.reference = 0;

	c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;

	if(avctx->get_buffer(avctx, &c->pic) < 0){

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

		return -1;

	}



    outptr = c->pic.data[0]; // Output image pointer



    /* Decompress frame */

    switch (avctx->codec_id) {

        case CODEC_ID_MSZH:

            switch (c->compression) {

                case COMP_MSZH:

                    if (c->flags & FLAG_MULTITHREAD) {

                        mthread_inlen = *((unsigned int*)encoded);

                        mthread_outlen = *((unsigned int*)(encoded+4));

                        mszh_dlen = mszh_decomp(encoded + 8, mthread_inlen, c->decomp_buf);

                        if (mthread_outlen != mszh_dlen) {

                            av_log(avctx, AV_LOG_ERROR, "Mthread1 decoded size differs (%d != %d)\n",

                                   mthread_outlen, mszh_dlen);

                        }

                        mszh_dlen = mszh_decomp(encoded + 8 + mthread_inlen, len - mthread_inlen,

                                                c->decomp_buf + mthread_outlen);

                        if ((c->decomp_size - mthread_outlen) != mszh_dlen) {

                            av_log(avctx, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %d)\n",

                                   c->decomp_size - mthread_outlen, mszh_dlen);

                        }

                        encoded = c->decomp_buf;

                        len = c->decomp_size;

                    } else {

                        mszh_dlen = mszh_decomp(encoded, len, c->decomp_buf);

                        if (c->decomp_size != mszh_dlen) {

                            av_log(avctx, AV_LOG_ERROR, "Decoded size differs (%d != %d)\n",

                                   c->decomp_size, mszh_dlen);

                        }

                        encoded = c->decomp_buf;

                        len = mszh_dlen;

                    }

                    break;

                case COMP_MSZH_NOCOMP:

                    break;

                default:

                    av_log(avctx, AV_LOG_ERROR, "BUG! Unknown MSZH compression in frame decoder.\n");

                    return -1;

            }

            break;

        case CODEC_ID_ZLIB:

#ifdef CONFIG_ZLIB

            /* Using the original dll with normal compression (-1) and RGB format

             * gives a file with ZLIB fourcc, but frame is really uncompressed.

             * To be sure that's true check also frame size */

            if ((c->compression == COMP_ZLIB_NORMAL) && (c->imgtype == IMGTYPE_RGB24) &&

               (len == width * height * 3))

                break;

            zret = inflateReset(&(c->zstream));

            if (zret != Z_OK) {

                av_log(avctx, AV_LOG_ERROR, "Inflate reset error: %d\n", zret);

                return -1;

            }

            if (c->flags & FLAG_MULTITHREAD) {

                mthread_inlen = *((unsigned int*)encoded);

                mthread_outlen = *((unsigned int*)(encoded+4));

                c->zstream.next_in = encoded + 8;

                c->zstream.avail_in = mthread_inlen;

                c->zstream.next_out = c->decomp_buf;

                c->zstream.avail_out = mthread_outlen;    

                zret = inflate(&(c->zstream), Z_FINISH);

                if ((zret != Z_OK) && (zret != Z_STREAM_END)) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread1 inflate error: %d\n", zret);

                    return -1;

                }

                if (mthread_outlen != (unsigned int)(c->zstream.total_out)) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread1 decoded size differs (%u != %lu)\n",

                           mthread_outlen, c->zstream.total_out);

                }

                zret = inflateReset(&(c->zstream));

                if (zret != Z_OK) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread2 inflate reset error: %d\n", zret);

                    return -1;

                }

                c->zstream.next_in = encoded + 8 + mthread_inlen;

                c->zstream.avail_in = len - mthread_inlen;

                c->zstream.next_out = c->decomp_buf + mthread_outlen;

                c->zstream.avail_out = mthread_outlen;    

                zret = inflate(&(c->zstream), Z_FINISH);

                if ((zret != Z_OK) && (zret != Z_STREAM_END)) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread2 inflate error: %d\n", zret);

                    return -1;

                }

                if ((c->decomp_size - mthread_outlen) != (unsigned int)(c->zstream.total_out)) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %lu)\n",

                           c->decomp_size - mthread_outlen, c->zstream.total_out);

                }

            } else {

                c->zstream.next_in = encoded;

                c->zstream.avail_in = len;

                c->zstream.next_out = c->decomp_buf;

                c->zstream.avail_out = c->decomp_size;

                zret = inflate(&(c->zstream), Z_FINISH);

                if ((zret != Z_OK) && (zret != Z_STREAM_END)) {

                    av_log(avctx, AV_LOG_ERROR, "Inflate error: %d\n", zret);

                    return -1;

                }

                if (c->decomp_size != (unsigned int)(c->zstream.total_out)) {

                    av_log(avctx, AV_LOG_ERROR, "Decoded size differs (%d != %lu)\n",

                           c->decomp_size, c->zstream.total_out);

                }

            }

            encoded = c->decomp_buf;

            len = c->decomp_size;;

#else

            av_log(avctx, AV_LOG_ERROR, "BUG! Zlib support not compiled in frame decoder.\n");

            return -1;

#endif

            break;

        default:

            av_log(avctx, AV_LOG_ERROR, "BUG! Unknown codec in frame decoder compression switch.\n");

            return -1;

    }





    /* Apply PNG filter */

    if ((avctx->codec_id == CODEC_ID_ZLIB) && (c->flags & FLAG_PNGFILTER)) {

        switch (c->imgtype) {

            case IMGTYPE_YUV111:

            case IMGTYPE_RGB24:

                for (row = 0; row < height; row++) {

                    pixel_ptr = row * width * 3;

                    yq = encoded[pixel_ptr++];

                    uqvq = encoded[pixel_ptr++];

              	  uqvq+=(encoded[pixel_ptr++] << 8);

                    for (col = 1; col < width; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        uqvq -= (encoded[pixel_ptr+1] | (encoded[pixel_ptr+2]<<8));

                        encoded[pixel_ptr+1] = (uqvq) & 0xff;

                        encoded[pixel_ptr+2] = ((uqvq)>>8) & 0xff;

                        pixel_ptr += 3;

                    }

                }

                break;

            case IMGTYPE_YUV422:

                for (row = 0; row < height; row++) {

                    pixel_ptr = row * width * 2;

                    yq = uq = vq =0;

                    for (col = 0; col < width/4; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1];

                        encoded[pixel_ptr+2] = yq -= encoded[pixel_ptr+2];

                        encoded[pixel_ptr+3] = yq -= encoded[pixel_ptr+3];

                        encoded[pixel_ptr+4] = uq -= encoded[pixel_ptr+4];

                        encoded[pixel_ptr+5] = uq -= encoded[pixel_ptr+5];

                        encoded[pixel_ptr+6] = vq -= encoded[pixel_ptr+6];

                        encoded[pixel_ptr+7] = vq -= encoded[pixel_ptr+7];

                        pixel_ptr += 8;

                    }

                }

                break;

            case IMGTYPE_YUV411:

                for (row = 0; row < height; row++) {

                    pixel_ptr = row * width / 2 * 3;

                    yq = uq = vq =0;

                    for (col = 0; col < width/4; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1];

                        encoded[pixel_ptr+2] = yq -= encoded[pixel_ptr+2];

                        encoded[pixel_ptr+3] = yq -= encoded[pixel_ptr+3];

                        encoded[pixel_ptr+4] = uq -= encoded[pixel_ptr+4];

                        encoded[pixel_ptr+5] = vq -= encoded[pixel_ptr+5];

                        pixel_ptr += 6;

                    }

                }

                break;

            case IMGTYPE_YUV211:

                for (row = 0; row < height; row++) {

                    pixel_ptr = row * width * 2;

                    yq = uq = vq =0;

                    for (col = 0; col < width/2; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1];

                        encoded[pixel_ptr+2] = uq -= encoded[pixel_ptr+2];

                        encoded[pixel_ptr+3] = vq -= encoded[pixel_ptr+3];

                        pixel_ptr += 4;

                    }

                }

                break;

            case IMGTYPE_YUV420:

                for (row = 0; row < height/2; row++) {

                    pixel_ptr = row * width * 3;

                    yq = y1q = uq = vq =0;

                    for (col = 0; col < width/2; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1];

                        encoded[pixel_ptr+2] = y1q -= encoded[pixel_ptr+2];

                        encoded[pixel_ptr+3] = y1q -= encoded[pixel_ptr+3];

                        encoded[pixel_ptr+4] = uq -= encoded[pixel_ptr+4];

                        encoded[pixel_ptr+5] = vq -= encoded[pixel_ptr+5];

                        pixel_ptr += 6;

                    }

                }

                break;

            default:

                av_log(avctx, AV_LOG_ERROR, "BUG! Unknown imagetype in pngfilter switch.\n");

                return -1;

        }

    }



    /* Convert colorspace */

    switch (c->imgtype) {

        case IMGTYPE_YUV111:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width; col++) {

                    outptr[pixel_ptr++] = get_b(encoded[0], encoded[1]);

                    outptr[pixel_ptr++] = get_g(encoded[0], encoded[1], encoded[2]);

                    outptr[pixel_ptr++] = get_r(encoded[0], encoded[2]);

                    encoded += 3;

                }

            }

            break;

        case IMGTYPE_YUV422:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width/4; col++) {

                    outptr[pixel_ptr++] = get_b(encoded[0], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[0], encoded[4], encoded[6]);

                    outptr[pixel_ptr++] = get_r(encoded[0], encoded[6]);

                    outptr[pixel_ptr++] = get_b(encoded[1], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[1], encoded[4], encoded[6]);

                    outptr[pixel_ptr++] = get_r(encoded[1], encoded[6]);

                    outptr[pixel_ptr++] = get_b(encoded[2], encoded[5]);

                    outptr[pixel_ptr++] = get_g(encoded[2], encoded[5], encoded[7]);

                    outptr[pixel_ptr++] = get_r(encoded[2], encoded[7]);

                    outptr[pixel_ptr++] = get_b(encoded[3], encoded[5]);

                    outptr[pixel_ptr++] = get_g(encoded[3], encoded[5], encoded[7]);

                    outptr[pixel_ptr++] = get_r(encoded[3], encoded[7]);

                    encoded += 8;

                }

            }

            break;

        case IMGTYPE_RGB24:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width; col++) {

                    outptr[pixel_ptr++] = encoded[0];

                    outptr[pixel_ptr++] = encoded[1];

                    outptr[pixel_ptr++] = encoded[2];

                    encoded += 3;

                }

            }

            break;

        case IMGTYPE_YUV411:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width/4; col++) {

                    outptr[pixel_ptr++] = get_b(encoded[0], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[0], encoded[4], encoded[5]);

                    outptr[pixel_ptr++] = get_r(encoded[0], encoded[5]);

                    outptr[pixel_ptr++] = get_b(encoded[1], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[1], encoded[4], encoded[5]);

                    outptr[pixel_ptr++] = get_r(encoded[1], encoded[5]);

                    outptr[pixel_ptr++] = get_b(encoded[2], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[2], encoded[4], encoded[5]);

                    outptr[pixel_ptr++] = get_r(encoded[2], encoded[5]);

                    outptr[pixel_ptr++] = get_b(encoded[3], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[3], encoded[4], encoded[5]);

                    outptr[pixel_ptr++] = get_r(encoded[3], encoded[5]);

                    encoded += 6;

                }

            }

            break;

        case IMGTYPE_YUV211:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width/2; col++) {

                    outptr[pixel_ptr++] = get_b(encoded[0], encoded[2]);

                    outptr[pixel_ptr++] = get_g(encoded[0], encoded[2], encoded[3]);

                    outptr[pixel_ptr++] = get_r(encoded[0], encoded[3]);

                    outptr[pixel_ptr++] = get_b(encoded[1], encoded[2]);

                    outptr[pixel_ptr++] = get_g(encoded[1], encoded[2], encoded[3]);

                    outptr[pixel_ptr++] = get_r(encoded[1], encoded[3]);

                    encoded += 4;

                }

            }

            break;

        case IMGTYPE_YUV420:

            for (row = height / 2 - 1; row >= 0; row--) {

                pixel_ptr = 2 * row * c->pic.linesize[0];

                for (col = 0; col < width/2; col++) {

                    outptr[pixel_ptr] = get_b(encoded[0], encoded[4]);

                    outptr[pixel_ptr+1] = get_g(encoded[0], encoded[4], encoded[5]);

                    outptr[pixel_ptr+2] = get_r(encoded[0], encoded[5]);

                    outptr[pixel_ptr+3] = get_b(encoded[1], encoded[4]);

                    outptr[pixel_ptr+4] = get_g(encoded[1], encoded[4], encoded[5]);

                    outptr[pixel_ptr+5] = get_r(encoded[1], encoded[5]);

                    outptr[pixel_ptr-c->pic.linesize[0]] = get_b(encoded[2], encoded[4]);

                    outptr[pixel_ptr-c->pic.linesize[0]+1] = get_g(encoded[2], encoded[4], encoded[5]);

                    outptr[pixel_ptr-c->pic.linesize[0]+2] = get_r(encoded[2], encoded[5]);

                    outptr[pixel_ptr-c->pic.linesize[0]+3] = get_b(encoded[3], encoded[4]);

                    outptr[pixel_ptr-c->pic.linesize[0]+4] = get_g(encoded[3], encoded[4], encoded[5]);

                    outptr[pixel_ptr-c->pic.linesize[0]+5] = get_r(encoded[3], encoded[5]);

                    pixel_ptr += 6;

                    encoded += 6;

                }

            }

            break;

        default:

            av_log(avctx, AV_LOG_ERROR, "BUG! Unknown imagetype in image decoder.\n");

            return -1;

    }



    *data_size = sizeof(AVFrame);

    *(AVFrame*)data = c->pic;



    /* always report that the buffer was completely consumed */

    return buf_size;

}

static int decode_frame(AVCodecContext *avctx, void *data, int *data_size, uint8_t *buf, int buf_size)

{

	LclContext * const c = (LclContext *)avctx->priv_data;

	unsigned char *encoded = (unsigned char *)buf;

    int pixel_ptr;

    int row, col;

    unsigned char *outptr;

    unsigned int width = avctx->width; 

    unsigned int height = avctx->height; 

    unsigned int mszh_dlen;

    unsigned char yq, y1q, uq, vq;

    int uqvq;

    unsigned int mthread_inlen, mthread_outlen;

#ifdef CONFIG_ZLIB

    int zret; 

#endif

    int len = buf_size;



	

	if (buf_size == 0)

		return 0;



	if(c->pic.data[0])

		avctx->release_buffer(avctx, &c->pic);



	c->pic.reference = 0;

	c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;

	if(avctx->get_buffer(avctx, &c->pic) < 0){

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

		return -1;

	}



    outptr = c->pic.data[0]; 



    

    switch (avctx->codec_id) {

        case CODEC_ID_MSZH:

            switch (c->compression) {

                case COMP_MSZH:

                    if (c->flags & FLAG_MULTITHREAD) {

                        mthread_inlen = *((unsigned int*)encoded);

                        mthread_outlen = *((unsigned int*)(encoded+4));

                        mszh_dlen = mszh_decomp(encoded + 8, mthread_inlen, c->decomp_buf);

                        if (mthread_outlen != mszh_dlen) {

                            av_log(avctx, AV_LOG_ERROR, "Mthread1 decoded size differs (%d != %d)\n",

                                   mthread_outlen, mszh_dlen);

                        }

                        mszh_dlen = mszh_decomp(encoded + 8 + mthread_inlen, len - mthread_inlen,

                                                c->decomp_buf + mthread_outlen);

                        if ((c->decomp_size - mthread_outlen) != mszh_dlen) {

                            av_log(avctx, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %d)\n",

                                   c->decomp_size - mthread_outlen, mszh_dlen);

                        }

                        encoded = c->decomp_buf;

                        len = c->decomp_size;

                    } else {

                        mszh_dlen = mszh_decomp(encoded, len, c->decomp_buf);

                        if (c->decomp_size != mszh_dlen) {

                            av_log(avctx, AV_LOG_ERROR, "Decoded size differs (%d != %d)\n",

                                   c->decomp_size, mszh_dlen);

                        }

                        encoded = c->decomp_buf;

                        len = mszh_dlen;

                    }

                    break;

                case COMP_MSZH_NOCOMP:

                    break;

                default:

                    av_log(avctx, AV_LOG_ERROR, "BUG! Unknown MSZH compression in frame decoder.\n");

                    return -1;

            }

            break;

        case CODEC_ID_ZLIB:

#ifdef CONFIG_ZLIB

            





            if ((c->compression == COMP_ZLIB_NORMAL) && (c->imgtype == IMGTYPE_RGB24) &&

               (len == width * height * 3))

                break;

            zret = inflateReset(&(c->zstream));

            if (zret != Z_OK) {

                av_log(avctx, AV_LOG_ERROR, "Inflate reset error: %d\n", zret);

                return -1;

            }

            if (c->flags & FLAG_MULTITHREAD) {

                mthread_inlen = *((unsigned int*)encoded);

                mthread_outlen = *((unsigned int*)(encoded+4));

                c->zstream.next_in = encoded + 8;

                c->zstream.avail_in = mthread_inlen;

                c->zstream.next_out = c->decomp_buf;

                c->zstream.avail_out = mthread_outlen;    

                zret = inflate(&(c->zstream), Z_FINISH);

                if ((zret != Z_OK) && (zret != Z_STREAM_END)) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread1 inflate error: %d\n", zret);

                    return -1;

                }

                if (mthread_outlen != (unsigned int)(c->zstream.total_out)) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread1 decoded size differs (%u != %lu)\n",

                           mthread_outlen, c->zstream.total_out);

                }

                zret = inflateReset(&(c->zstream));

                if (zret != Z_OK) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread2 inflate reset error: %d\n", zret);

                    return -1;

                }

                c->zstream.next_in = encoded + 8 + mthread_inlen;

                c->zstream.avail_in = len - mthread_inlen;

                c->zstream.next_out = c->decomp_buf + mthread_outlen;

                c->zstream.avail_out = mthread_outlen;    

                zret = inflate(&(c->zstream), Z_FINISH);

                if ((zret != Z_OK) && (zret != Z_STREAM_END)) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread2 inflate error: %d\n", zret);

                    return -1;

                }

                if ((c->decomp_size - mthread_outlen) != (unsigned int)(c->zstream.total_out)) {

                    av_log(avctx, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %lu)\n",

                           c->decomp_size - mthread_outlen, c->zstream.total_out);

                }

            } else {

                c->zstream.next_in = encoded;

                c->zstream.avail_in = len;

                c->zstream.next_out = c->decomp_buf;

                c->zstream.avail_out = c->decomp_size;

                zret = inflate(&(c->zstream), Z_FINISH);

                if ((zret != Z_OK) && (zret != Z_STREAM_END)) {

                    av_log(avctx, AV_LOG_ERROR, "Inflate error: %d\n", zret);

                    return -1;

                }

                if (c->decomp_size != (unsigned int)(c->zstream.total_out)) {

                    av_log(avctx, AV_LOG_ERROR, "Decoded size differs (%d != %lu)\n",

                           c->decomp_size, c->zstream.total_out);

                }

            }

            encoded = c->decomp_buf;

            len = c->decomp_size;;

#else

            av_log(avctx, AV_LOG_ERROR, "BUG! Zlib support not compiled in frame decoder.\n");

            return -1;

#endif

            break;

        default:

            av_log(avctx, AV_LOG_ERROR, "BUG! Unknown codec in frame decoder compression switch.\n");

            return -1;

    }





    

    if ((avctx->codec_id == CODEC_ID_ZLIB) && (c->flags & FLAG_PNGFILTER)) {

        switch (c->imgtype) {

            case IMGTYPE_YUV111:

            case IMGTYPE_RGB24:

                for (row = 0; row < height; row++) {

                    pixel_ptr = row * width * 3;

                    yq = encoded[pixel_ptr++];

                    uqvq = encoded[pixel_ptr++];

              	  uqvq+=(encoded[pixel_ptr++] << 8);

                    for (col = 1; col < width; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        uqvq -= (encoded[pixel_ptr+1] | (encoded[pixel_ptr+2]<<8));

                        encoded[pixel_ptr+1] = (uqvq) & 0xff;

                        encoded[pixel_ptr+2] = ((uqvq)>>8) & 0xff;

                        pixel_ptr += 3;

                    }

                }

                break;

            case IMGTYPE_YUV422:

                for (row = 0; row < height; row++) {

                    pixel_ptr = row * width * 2;

                    yq = uq = vq =0;

                    for (col = 0; col < width/4; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1];

                        encoded[pixel_ptr+2] = yq -= encoded[pixel_ptr+2];

                        encoded[pixel_ptr+3] = yq -= encoded[pixel_ptr+3];

                        encoded[pixel_ptr+4] = uq -= encoded[pixel_ptr+4];

                        encoded[pixel_ptr+5] = uq -= encoded[pixel_ptr+5];

                        encoded[pixel_ptr+6] = vq -= encoded[pixel_ptr+6];

                        encoded[pixel_ptr+7] = vq -= encoded[pixel_ptr+7];

                        pixel_ptr += 8;

                    }

                }

                break;

            case IMGTYPE_YUV411:

                for (row = 0; row < height; row++) {

                    pixel_ptr = row * width / 2 * 3;

                    yq = uq = vq =0;

                    for (col = 0; col < width/4; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1];

                        encoded[pixel_ptr+2] = yq -= encoded[pixel_ptr+2];

                        encoded[pixel_ptr+3] = yq -= encoded[pixel_ptr+3];

                        encoded[pixel_ptr+4] = uq -= encoded[pixel_ptr+4];

                        encoded[pixel_ptr+5] = vq -= encoded[pixel_ptr+5];

                        pixel_ptr += 6;

                    }

                }

                break;

            case IMGTYPE_YUV211:

                for (row = 0; row < height; row++) {

                    pixel_ptr = row * width * 2;

                    yq = uq = vq =0;

                    for (col = 0; col < width/2; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1];

                        encoded[pixel_ptr+2] = uq -= encoded[pixel_ptr+2];

                        encoded[pixel_ptr+3] = vq -= encoded[pixel_ptr+3];

                        pixel_ptr += 4;

                    }

                }

                break;

            case IMGTYPE_YUV420:

                for (row = 0; row < height/2; row++) {

                    pixel_ptr = row * width * 3;

                    yq = y1q = uq = vq =0;

                    for (col = 0; col < width/2; col++) {

                        encoded[pixel_ptr] = yq -= encoded[pixel_ptr];

                        encoded[pixel_ptr+1] = yq -= encoded[pixel_ptr+1];

                        encoded[pixel_ptr+2] = y1q -= encoded[pixel_ptr+2];

                        encoded[pixel_ptr+3] = y1q -= encoded[pixel_ptr+3];

                        encoded[pixel_ptr+4] = uq -= encoded[pixel_ptr+4];

                        encoded[pixel_ptr+5] = vq -= encoded[pixel_ptr+5];

                        pixel_ptr += 6;

                    }

                }

                break;

            default:

                av_log(avctx, AV_LOG_ERROR, "BUG! Unknown imagetype in pngfilter switch.\n");

                return -1;

        }

    }



    

    switch (c->imgtype) {

        case IMGTYPE_YUV111:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width; col++) {

                    outptr[pixel_ptr++] = get_b(encoded[0], encoded[1]);

                    outptr[pixel_ptr++] = get_g(encoded[0], encoded[1], encoded[2]);

                    outptr[pixel_ptr++] = get_r(encoded[0], encoded[2]);

                    encoded += 3;

                }

            }

            break;

        case IMGTYPE_YUV422:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width/4; col++) {

                    outptr[pixel_ptr++] = get_b(encoded[0], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[0], encoded[4], encoded[6]);

                    outptr[pixel_ptr++] = get_r(encoded[0], encoded[6]);

                    outptr[pixel_ptr++] = get_b(encoded[1], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[1], encoded[4], encoded[6]);

                    outptr[pixel_ptr++] = get_r(encoded[1], encoded[6]);

                    outptr[pixel_ptr++] = get_b(encoded[2], encoded[5]);

                    outptr[pixel_ptr++] = get_g(encoded[2], encoded[5], encoded[7]);

                    outptr[pixel_ptr++] = get_r(encoded[2], encoded[7]);

                    outptr[pixel_ptr++] = get_b(encoded[3], encoded[5]);

                    outptr[pixel_ptr++] = get_g(encoded[3], encoded[5], encoded[7]);

                    outptr[pixel_ptr++] = get_r(encoded[3], encoded[7]);

                    encoded += 8;

                }

            }

            break;

        case IMGTYPE_RGB24:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width; col++) {

                    outptr[pixel_ptr++] = encoded[0];

                    outptr[pixel_ptr++] = encoded[1];

                    outptr[pixel_ptr++] = encoded[2];

                    encoded += 3;

                }

            }

            break;

        case IMGTYPE_YUV411:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width/4; col++) {

                    outptr[pixel_ptr++] = get_b(encoded[0], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[0], encoded[4], encoded[5]);

                    outptr[pixel_ptr++] = get_r(encoded[0], encoded[5]);

                    outptr[pixel_ptr++] = get_b(encoded[1], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[1], encoded[4], encoded[5]);

                    outptr[pixel_ptr++] = get_r(encoded[1], encoded[5]);

                    outptr[pixel_ptr++] = get_b(encoded[2], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[2], encoded[4], encoded[5]);

                    outptr[pixel_ptr++] = get_r(encoded[2], encoded[5]);

                    outptr[pixel_ptr++] = get_b(encoded[3], encoded[4]);

                    outptr[pixel_ptr++] = get_g(encoded[3], encoded[4], encoded[5]);

                    outptr[pixel_ptr++] = get_r(encoded[3], encoded[5]);

                    encoded += 6;

                }

            }

            break;

        case IMGTYPE_YUV211:

            for (row = height - 1; row >= 0; row--) {

                pixel_ptr = row * c->pic.linesize[0];

                for (col = 0; col < width/2; col++) {

                    outptr[pixel_ptr++] = get_b(encoded[0], encoded[2]);

                    outptr[pixel_ptr++] = get_g(encoded[0], encoded[2], encoded[3]);

                    outptr[pixel_ptr++] = get_r(encoded[0], encoded[3]);

                    outptr[pixel_ptr++] = get_b(encoded[1], encoded[2]);

                    outptr[pixel_ptr++] = get_g(encoded[1], encoded[2], encoded[3]);

                    outptr[pixel_ptr++] = get_r(encoded[1], encoded[3]);

                    encoded += 4;

                }

            }

            break;

        case IMGTYPE_YUV420:

            for (row = height / 2 - 1; row >= 0; row--) {

                pixel_ptr = 2 * row * c->pic.linesize[0];

                for (col = 0; col < width/2; col++) {

                    outptr[pixel_ptr] = get_b(encoded[0], encoded[4]);

                    outptr[pixel_ptr+1] = get_g(encoded[0], encoded[4], encoded[5]);

                    outptr[pixel_ptr+2] = get_r(encoded[0], encoded[5]);

                    outptr[pixel_ptr+3] = get_b(encoded[1], encoded[4]);

                    outptr[pixel_ptr+4] = get_g(encoded[1], encoded[4], encoded[5]);

                    outptr[pixel_ptr+5] = get_r(encoded[1], encoded[5]);

                    outptr[pixel_ptr-c->pic.linesize[0]] = get_b(encoded[2], encoded[4]);

                    outptr[pixel_ptr-c->pic.linesize[0]+1] = get_g(encoded[2], encoded[4], encoded[5]);

                    outptr[pixel_ptr-c->pic.linesize[0]+2] = get_r(encoded[2], encoded[5]);

                    outptr[pixel_ptr-c->pic.linesize[0]+3] = get_b(encoded[3], encoded[4]);

                    outptr[pixel_ptr-c->pic.linesize[0]+4] = get_g(encoded[3], encoded[4], encoded[5]);

                    outptr[pixel_ptr-c->pic.linesize[0]+5] = get_r(encoded[3], encoded[5]);

                    pixel_ptr += 6;

                    encoded += 6;

                }

            }

            break;

        default:

            av_log(avctx, AV_LOG_ERROR, "BUG! Unknown imagetype in image decoder.\n");

            return -1;

    }



    *data_size = sizeof(AVFrame);

    *(AVFrame*)data = c->pic;



    

    return buf_size;

}

    int pixel_ptr;     int len = buf_size;                         mszh_dlen = mszh_decomp(encoded + 8, mthread_inlen, c->decomp_buf);                                                 c->decomp_buf + mthread_outlen);                         if ((c->decomp_size - mthread_outlen) != mszh_dlen) {                                    c->decomp_size - mthread_outlen, mszh_dlen);                         mszh_dlen = mszh_decomp(encoded, len, c->decomp_buf);                 c->zstream.avail_out = mthread_outlen;                     c->zstream.avail_out = mthread_outlen;                     if ((c->decomp_size - mthread_outlen) != (unsigned int)(c->zstream.total_out)) {                            c->decomp_size - mthread_outlen, c->zstream.total_out);
static int FUNC_0(AVCodecContext *VAR_0, void *VAR_1, int *VAR_2, uint8_t *VAR_3, int VAR_4)

{

	LclContext * const c = (LclContext *)VAR_0->priv_data;

	unsigned char *VAR_5 = (unsigned char *)VAR_3;

    int VAR_6;

    int VAR_7, VAR_8;

    unsigned char *VAR_9;

    unsigned int VAR_10 = VAR_0->VAR_10; 

    unsigned int VAR_11 = VAR_0->VAR_11; 

    unsigned int VAR_12;

    unsigned char VAR_13, VAR_14, VAR_15, VAR_16;

    int VAR_17;

    unsigned int VAR_18, VAR_19;

#ifdef CONFIG_ZLIB

    int zret; 

#endif

    int VAR_20 = VAR_4;



	

	if (VAR_4 == 0)

		return 0;



	if(c->pic.VAR_1[0])

		VAR_0->release_buffer(VAR_0, &c->pic);



	c->pic.reference = 0;

	c->pic.buffer_hints = FF_BUFFER_HINTS_VALID;

	if(VAR_0->get_buffer(VAR_0, &c->pic) < 0){

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

		return -1;

	}



    VAR_9 = c->pic.VAR_1[0]; 



    

    switch (VAR_0->codec_id) {

        case CODEC_ID_MSZH:

            switch (c->compression) {

                case COMP_MSZH:

                    if (c->flags & FLAG_MULTITHREAD) {

                        VAR_18 = *((unsigned int*)VAR_5);

                        VAR_19 = *((unsigned int*)(VAR_5+4));

                        VAR_12 = mszh_decomp(VAR_5 + 8, VAR_18, c->decomp_buf);

                        if (VAR_19 != VAR_12) {

                            av_log(VAR_0, AV_LOG_ERROR, "Mthread1 decoded size differs (%d != %d)\n",

                                   VAR_19, VAR_12);

                        }

                        VAR_12 = mszh_decomp(VAR_5 + 8 + VAR_18, VAR_20 - VAR_18,

                                                c->decomp_buf + VAR_19);

                        if ((c->decomp_size - VAR_19) != VAR_12) {

                            av_log(VAR_0, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %d)\n",

                                   c->decomp_size - VAR_19, VAR_12);

                        }

                        VAR_5 = c->decomp_buf;

                        VAR_20 = c->decomp_size;

                    } else {

                        VAR_12 = mszh_decomp(VAR_5, VAR_20, c->decomp_buf);

                        if (c->decomp_size != VAR_12) {

                            av_log(VAR_0, AV_LOG_ERROR, "Decoded size differs (%d != %d)\n",

                                   c->decomp_size, VAR_12);

                        }

                        VAR_5 = c->decomp_buf;

                        VAR_20 = VAR_12;

                    }

                    break;

                case COMP_MSZH_NOCOMP:

                    break;

                default:

                    av_log(VAR_0, AV_LOG_ERROR, "BUG! Unknown MSZH compression in frame decoder.\n");

                    return -1;

            }

            break;

        case CODEC_ID_ZLIB:

#ifdef CONFIG_ZLIB

            





            if ((c->compression == COMP_ZLIB_NORMAL) && (c->imgtype == IMGTYPE_RGB24) &&

               (VAR_20 == VAR_10 * VAR_11 * 3))

                break;

            zret = inflateReset(&(c->zstream));

            if (zret != Z_OK) {

                av_log(VAR_0, AV_LOG_ERROR, "Inflate reset error: %d\n", zret);

                return -1;

            }

            if (c->flags & FLAG_MULTITHREAD) {

                VAR_18 = *((unsigned int*)VAR_5);

                VAR_19 = *((unsigned int*)(VAR_5+4));

                c->zstream.next_in = VAR_5 + 8;

                c->zstream.avail_in = VAR_18;

                c->zstream.next_out = c->decomp_buf;

                c->zstream.avail_out = VAR_19;    

                zret = inflate(&(c->zstream), Z_FINISH);

                if ((zret != Z_OK) && (zret != Z_STREAM_END)) {

                    av_log(VAR_0, AV_LOG_ERROR, "Mthread1 inflate error: %d\n", zret);

                    return -1;

                }

                if (VAR_19 != (unsigned int)(c->zstream.total_out)) {

                    av_log(VAR_0, AV_LOG_ERROR, "Mthread1 decoded size differs (%u != %lu)\n",

                           VAR_19, c->zstream.total_out);

                }

                zret = inflateReset(&(c->zstream));

                if (zret != Z_OK) {

                    av_log(VAR_0, AV_LOG_ERROR, "Mthread2 inflate reset error: %d\n", zret);

                    return -1;

                }

                c->zstream.next_in = VAR_5 + 8 + VAR_18;

                c->zstream.avail_in = VAR_20 - VAR_18;

                c->zstream.next_out = c->decomp_buf + VAR_19;

                c->zstream.avail_out = VAR_19;    

                zret = inflate(&(c->zstream), Z_FINISH);

                if ((zret != Z_OK) && (zret != Z_STREAM_END)) {

                    av_log(VAR_0, AV_LOG_ERROR, "Mthread2 inflate error: %d\n", zret);

                    return -1;

                }

                if ((c->decomp_size - VAR_19) != (unsigned int)(c->zstream.total_out)) {

                    av_log(VAR_0, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %lu)\n",

                           c->decomp_size - VAR_19, c->zstream.total_out);

                }

            } else {

                c->zstream.next_in = VAR_5;

                c->zstream.avail_in = VAR_20;

                c->zstream.next_out = c->decomp_buf;

                c->zstream.avail_out = c->decomp_size;

                zret = inflate(&(c->zstream), Z_FINISH);

                if ((zret != Z_OK) && (zret != Z_STREAM_END)) {

                    av_log(VAR_0, AV_LOG_ERROR, "Inflate error: %d\n", zret);

                    return -1;

                }

                if (c->decomp_size != (unsigned int)(c->zstream.total_out)) {

                    av_log(VAR_0, AV_LOG_ERROR, "Decoded size differs (%d != %lu)\n",

                           c->decomp_size, c->zstream.total_out);

                }

            }

            VAR_5 = c->decomp_buf;

            VAR_20 = c->decomp_size;;

#else

            av_log(VAR_0, AV_LOG_ERROR, "BUG! Zlib support not compiled in frame decoder.\n");

            return -1;

#endif

            break;

        default:

            av_log(VAR_0, AV_LOG_ERROR, "BUG! Unknown codec in frame decoder compression switch.\n");

            return -1;

    }





    

    if ((VAR_0->codec_id == CODEC_ID_ZLIB) && (c->flags & FLAG_PNGFILTER)) {

        switch (c->imgtype) {

            case IMGTYPE_YUV111:

            case IMGTYPE_RGB24:

                for (VAR_7 = 0; VAR_7 < VAR_11; VAR_7++) {

                    VAR_6 = VAR_7 * VAR_10 * 3;

                    VAR_13 = VAR_5[VAR_6++];

                    VAR_17 = VAR_5[VAR_6++];

              	  VAR_17+=(VAR_5[VAR_6++] << 8);

                    for (VAR_8 = 1; VAR_8 < VAR_10; VAR_8++) {

                        VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6];

                        VAR_17 -= (VAR_5[VAR_6+1] | (VAR_5[VAR_6+2]<<8));

                        VAR_5[VAR_6+1] = (VAR_17) & 0xff;

                        VAR_5[VAR_6+2] = ((VAR_17)>>8) & 0xff;

                        VAR_6 += 3;

                    }

                }

                break;

            case IMGTYPE_YUV422:

                for (VAR_7 = 0; VAR_7 < VAR_11; VAR_7++) {

                    VAR_6 = VAR_7 * VAR_10 * 2;

                    VAR_13 = VAR_15 = VAR_16 =0;

                    for (VAR_8 = 0; VAR_8 < VAR_10/4; VAR_8++) {

                        VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6];

                        VAR_5[VAR_6+1] = VAR_13 -= VAR_5[VAR_6+1];

                        VAR_5[VAR_6+2] = VAR_13 -= VAR_5[VAR_6+2];

                        VAR_5[VAR_6+3] = VAR_13 -= VAR_5[VAR_6+3];

                        VAR_5[VAR_6+4] = VAR_15 -= VAR_5[VAR_6+4];

                        VAR_5[VAR_6+5] = VAR_15 -= VAR_5[VAR_6+5];

                        VAR_5[VAR_6+6] = VAR_16 -= VAR_5[VAR_6+6];

                        VAR_5[VAR_6+7] = VAR_16 -= VAR_5[VAR_6+7];

                        VAR_6 += 8;

                    }

                }

                break;

            case IMGTYPE_YUV411:

                for (VAR_7 = 0; VAR_7 < VAR_11; VAR_7++) {

                    VAR_6 = VAR_7 * VAR_10 / 2 * 3;

                    VAR_13 = VAR_15 = VAR_16 =0;

                    for (VAR_8 = 0; VAR_8 < VAR_10/4; VAR_8++) {

                        VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6];

                        VAR_5[VAR_6+1] = VAR_13 -= VAR_5[VAR_6+1];

                        VAR_5[VAR_6+2] = VAR_13 -= VAR_5[VAR_6+2];

                        VAR_5[VAR_6+3] = VAR_13 -= VAR_5[VAR_6+3];

                        VAR_5[VAR_6+4] = VAR_15 -= VAR_5[VAR_6+4];

                        VAR_5[VAR_6+5] = VAR_16 -= VAR_5[VAR_6+5];

                        VAR_6 += 6;

                    }

                }

                break;

            case IMGTYPE_YUV211:

                for (VAR_7 = 0; VAR_7 < VAR_11; VAR_7++) {

                    VAR_6 = VAR_7 * VAR_10 * 2;

                    VAR_13 = VAR_15 = VAR_16 =0;

                    for (VAR_8 = 0; VAR_8 < VAR_10/2; VAR_8++) {

                        VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6];

                        VAR_5[VAR_6+1] = VAR_13 -= VAR_5[VAR_6+1];

                        VAR_5[VAR_6+2] = VAR_15 -= VAR_5[VAR_6+2];

                        VAR_5[VAR_6+3] = VAR_16 -= VAR_5[VAR_6+3];

                        VAR_6 += 4;

                    }

                }

                break;

            case IMGTYPE_YUV420:

                for (VAR_7 = 0; VAR_7 < VAR_11/2; VAR_7++) {

                    VAR_6 = VAR_7 * VAR_10 * 3;

                    VAR_13 = VAR_14 = VAR_15 = VAR_16 =0;

                    for (VAR_8 = 0; VAR_8 < VAR_10/2; VAR_8++) {

                        VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6];

                        VAR_5[VAR_6+1] = VAR_13 -= VAR_5[VAR_6+1];

                        VAR_5[VAR_6+2] = VAR_14 -= VAR_5[VAR_6+2];

                        VAR_5[VAR_6+3] = VAR_14 -= VAR_5[VAR_6+3];

                        VAR_5[VAR_6+4] = VAR_15 -= VAR_5[VAR_6+4];

                        VAR_5[VAR_6+5] = VAR_16 -= VAR_5[VAR_6+5];

                        VAR_6 += 6;

                    }

                }

                break;

            default:

                av_log(VAR_0, AV_LOG_ERROR, "BUG! Unknown imagetype in pngfilter switch.\n");

                return -1;

        }

    }



    

    switch (c->imgtype) {

        case IMGTYPE_YUV111:

            for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) {

                VAR_6 = VAR_7 * c->pic.linesize[0];

                for (VAR_8 = 0; VAR_8 < VAR_10; VAR_8++) {

                    VAR_9[VAR_6++] = get_b(VAR_5[0], VAR_5[1]);

                    VAR_9[VAR_6++] = get_g(VAR_5[0], VAR_5[1], VAR_5[2]);

                    VAR_9[VAR_6++] = get_r(VAR_5[0], VAR_5[2]);

                    VAR_5 += 3;

                }

            }

            break;

        case IMGTYPE_YUV422:

            for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) {

                VAR_6 = VAR_7 * c->pic.linesize[0];

                for (VAR_8 = 0; VAR_8 < VAR_10/4; VAR_8++) {

                    VAR_9[VAR_6++] = get_b(VAR_5[0], VAR_5[4]);

                    VAR_9[VAR_6++] = get_g(VAR_5[0], VAR_5[4], VAR_5[6]);

                    VAR_9[VAR_6++] = get_r(VAR_5[0], VAR_5[6]);

                    VAR_9[VAR_6++] = get_b(VAR_5[1], VAR_5[4]);

                    VAR_9[VAR_6++] = get_g(VAR_5[1], VAR_5[4], VAR_5[6]);

                    VAR_9[VAR_6++] = get_r(VAR_5[1], VAR_5[6]);

                    VAR_9[VAR_6++] = get_b(VAR_5[2], VAR_5[5]);

                    VAR_9[VAR_6++] = get_g(VAR_5[2], VAR_5[5], VAR_5[7]);

                    VAR_9[VAR_6++] = get_r(VAR_5[2], VAR_5[7]);

                    VAR_9[VAR_6++] = get_b(VAR_5[3], VAR_5[5]);

                    VAR_9[VAR_6++] = get_g(VAR_5[3], VAR_5[5], VAR_5[7]);

                    VAR_9[VAR_6++] = get_r(VAR_5[3], VAR_5[7]);

                    VAR_5 += 8;

                }

            }

            break;

        case IMGTYPE_RGB24:

            for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) {

                VAR_6 = VAR_7 * c->pic.linesize[0];

                for (VAR_8 = 0; VAR_8 < VAR_10; VAR_8++) {

                    VAR_9[VAR_6++] = VAR_5[0];

                    VAR_9[VAR_6++] = VAR_5[1];

                    VAR_9[VAR_6++] = VAR_5[2];

                    VAR_5 += 3;

                }

            }

            break;

        case IMGTYPE_YUV411:

            for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) {

                VAR_6 = VAR_7 * c->pic.linesize[0];

                for (VAR_8 = 0; VAR_8 < VAR_10/4; VAR_8++) {

                    VAR_9[VAR_6++] = get_b(VAR_5[0], VAR_5[4]);

                    VAR_9[VAR_6++] = get_g(VAR_5[0], VAR_5[4], VAR_5[5]);

                    VAR_9[VAR_6++] = get_r(VAR_5[0], VAR_5[5]);

                    VAR_9[VAR_6++] = get_b(VAR_5[1], VAR_5[4]);

                    VAR_9[VAR_6++] = get_g(VAR_5[1], VAR_5[4], VAR_5[5]);

                    VAR_9[VAR_6++] = get_r(VAR_5[1], VAR_5[5]);

                    VAR_9[VAR_6++] = get_b(VAR_5[2], VAR_5[4]);

                    VAR_9[VAR_6++] = get_g(VAR_5[2], VAR_5[4], VAR_5[5]);

                    VAR_9[VAR_6++] = get_r(VAR_5[2], VAR_5[5]);

                    VAR_9[VAR_6++] = get_b(VAR_5[3], VAR_5[4]);

                    VAR_9[VAR_6++] = get_g(VAR_5[3], VAR_5[4], VAR_5[5]);

                    VAR_9[VAR_6++] = get_r(VAR_5[3], VAR_5[5]);

                    VAR_5 += 6;

                }

            }

            break;

        case IMGTYPE_YUV211:

            for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) {

                VAR_6 = VAR_7 * c->pic.linesize[0];

                for (VAR_8 = 0; VAR_8 < VAR_10/2; VAR_8++) {

                    VAR_9[VAR_6++] = get_b(VAR_5[0], VAR_5[2]);

                    VAR_9[VAR_6++] = get_g(VAR_5[0], VAR_5[2], VAR_5[3]);

                    VAR_9[VAR_6++] = get_r(VAR_5[0], VAR_5[3]);

                    VAR_9[VAR_6++] = get_b(VAR_5[1], VAR_5[2]);

                    VAR_9[VAR_6++] = get_g(VAR_5[1], VAR_5[2], VAR_5[3]);

                    VAR_9[VAR_6++] = get_r(VAR_5[1], VAR_5[3]);

                    VAR_5 += 4;

                }

            }

            break;

        case IMGTYPE_YUV420:

            for (VAR_7 = VAR_11 / 2 - 1; VAR_7 >= 0; VAR_7--) {

                VAR_6 = 2 * VAR_7 * c->pic.linesize[0];

                for (VAR_8 = 0; VAR_8 < VAR_10/2; VAR_8++) {

                    VAR_9[VAR_6] = get_b(VAR_5[0], VAR_5[4]);

                    VAR_9[VAR_6+1] = get_g(VAR_5[0], VAR_5[4], VAR_5[5]);

                    VAR_9[VAR_6+2] = get_r(VAR_5[0], VAR_5[5]);

                    VAR_9[VAR_6+3] = get_b(VAR_5[1], VAR_5[4]);

                    VAR_9[VAR_6+4] = get_g(VAR_5[1], VAR_5[4], VAR_5[5]);

                    VAR_9[VAR_6+5] = get_r(VAR_5[1], VAR_5[5]);

                    VAR_9[VAR_6-c->pic.linesize[0]] = get_b(VAR_5[2], VAR_5[4]);

                    VAR_9[VAR_6-c->pic.linesize[0]+1] = get_g(VAR_5[2], VAR_5[4], VAR_5[5]);

                    VAR_9[VAR_6-c->pic.linesize[0]+2] = get_r(VAR_5[2], VAR_5[5]);

                    VAR_9[VAR_6-c->pic.linesize[0]+3] = get_b(VAR_5[3], VAR_5[4]);

                    VAR_9[VAR_6-c->pic.linesize[0]+4] = get_g(VAR_5[3], VAR_5[4], VAR_5[5]);

                    VAR_9[VAR_6-c->pic.linesize[0]+5] = get_r(VAR_5[3], VAR_5[5]);

                    VAR_6 += 6;

                    VAR_5 += 6;

                }

            }

            break;

        default:

            av_log(VAR_0, AV_LOG_ERROR, "BUG! Unknown imagetype in image decoder.\n");

            return -1;

    }



    *VAR_2 = sizeof(AVFrame);

    *(AVFrame*)VAR_1 = c->pic;



    

    return VAR_4;

}

static int FUNC_0(AVCodecContext *VAR_0, void *VAR_1, int *VAR_2, uint8_t *VAR_3, int VAR_4)
{ LclContext * const c = (LclContext *)VAR_0->priv_data; unsigned char *VAR_5 = (unsigned char *)VAR_3; int VAR_6; int VAR_7, VAR_8; unsigned char *VAR_9; unsigned int VAR_10 = VAR_0->VAR_10; unsigned int VAR_11 = VAR_0->VAR_11; unsigned int VAR_12; unsigned char VAR_13, VAR_14, VAR_15, VAR_16; int VAR_17; unsigned int VAR_18, VAR_19; #ifdef CONFIG_ZLIB
int zret; #endif
int VAR_20 = VAR_4; if (VAR_4 == 0)
return 0; if(c->pic.VAR_1[0])
VAR_0->release_buffer(VAR_0, &c->pic); c->pic.reference = 0; c->pic.buffer_hints = FF_BUFFER_HINTS_VALID; if(VAR_0->get_buffer(VAR_0, &c->pic) < 0){ av_log(VAR_0, AV_LOG_ERROR, "get_buffer() failed\n"); return -1; } VAR_9 = c->pic.VAR_1[0]; switch (VAR_0->codec_id) { case CODEC_ID_MSZH:
switch (c->compression) { case COMP_MSZH:
if (c->flags & FLAG_MULTITHREAD) { VAR_18 = *((unsigned int*)VAR_5); VAR_19 = *((unsigned int*)(VAR_5+4)); VAR_12 = mszh_decomp(VAR_5 + 8, VAR_18, c->decomp_buf); if (VAR_19 != VAR_12) { av_log(VAR_0, AV_LOG_ERROR, "Mthread1 decoded size differs (%d != %d)\n",
VAR_19, VAR_12); } VAR_12 = mszh_decomp(VAR_5 + 8 + VAR_18, VAR_20 - VAR_18,
c->decomp_buf + VAR_19); if ((c->decomp_size - VAR_19) != VAR_12) { av_log(VAR_0, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %d)\n",
c->decomp_size - VAR_19, VAR_12); } VAR_5 = c->decomp_buf; VAR_20 = c->decomp_size; } else { VAR_12 = mszh_decomp(VAR_5, VAR_20, c->decomp_buf); if (c->decomp_size != VAR_12) { av_log(VAR_0, AV_LOG_ERROR, "Decoded size differs (%d != %d)\n",
c->decomp_size, VAR_12); } VAR_5 = c->decomp_buf; VAR_20 = VAR_12; } break; case COMP_MSZH_NOCOMP:
break; default:
av_log(VAR_0, AV_LOG_ERROR, "BUG! Unknown MSZH compression in frame decoder.\n"); return -1; } break; case CODEC_ID_ZLIB:
#ifdef CONFIG_ZLIB
if ((c->compression == COMP_ZLIB_NORMAL) && (c->imgtype == IMGTYPE_RGB24) &&
(VAR_20 == VAR_10 * VAR_11 * 3))
break; zret = inflateReset(&(c->zstream)); if (zret != Z_OK) { av_log(VAR_0, AV_LOG_ERROR, "Inflate reset error: %d\n", zret); return -1; } if (c->flags & FLAG_MULTITHREAD) { VAR_18 = *((unsigned int*)VAR_5); VAR_19 = *((unsigned int*)(VAR_5+4)); c->zstream.next_in = VAR_5 + 8; c->zstream.avail_in = VAR_18; c->zstream.next_out = c->decomp_buf; c->zstream.avail_out = VAR_19; zret = inflate(&(c->zstream), Z_FINISH); if ((zret != Z_OK) && (zret != Z_STREAM_END)) { av_log(VAR_0, AV_LOG_ERROR, "Mthread1 inflate error: %d\n", zret); return -1; } if (VAR_19 != (unsigned int)(c->zstream.total_out)) { av_log(VAR_0, AV_LOG_ERROR, "Mthread1 decoded size differs (%u != %lu)\n",
VAR_19, c->zstream.total_out); } zret = inflateReset(&(c->zstream)); if (zret != Z_OK) { av_log(VAR_0, AV_LOG_ERROR, "Mthread2 inflate reset error: %d\n", zret); return -1; } c->zstream.next_in = VAR_5 + 8 + VAR_18; c->zstream.avail_in = VAR_20 - VAR_18; c->zstream.next_out = c->decomp_buf + VAR_19; c->zstream.avail_out = VAR_19; zret = inflate(&(c->zstream), Z_FINISH); if ((zret != Z_OK) && (zret != Z_STREAM_END)) { av_log(VAR_0, AV_LOG_ERROR, "Mthread2 inflate error: %d\n", zret); return -1; } if ((c->decomp_size - VAR_19) != (unsigned int)(c->zstream.total_out)) { av_log(VAR_0, AV_LOG_ERROR, "Mthread2 decoded size differs (%d != %lu)\n",
c->decomp_size - VAR_19, c->zstream.total_out); } } else { c->zstream.next_in = VAR_5; c->zstream.avail_in = VAR_20; c->zstream.next_out = c->decomp_buf; c->zstream.avail_out = c->decomp_size; zret = inflate(&(c->zstream), Z_FINISH); if ((zret != Z_OK) && (zret != Z_STREAM_END)) { av_log(VAR_0, AV_LOG_ERROR, "Inflate error: %d\n", zret); return -1; } if (c->decomp_size != (unsigned int)(c->zstream.total_out)) { av_log(VAR_0, AV_LOG_ERROR, "Decoded size differs (%d != %lu)\n",
c->decomp_size, c->zstream.total_out); } } VAR_5 = c->decomp_buf; VAR_20 = c->decomp_size;; #else
av_log(VAR_0, AV_LOG_ERROR, "BUG! Zlib support not compiled in frame decoder.\n"); return -1; #endif
break; default:
av_log(VAR_0, AV_LOG_ERROR, "BUG! Unknown codec in frame decoder compression switch.\n"); return -1; } if ((VAR_0->codec_id == CODEC_ID_ZLIB) && (c->flags & FLAG_PNGFILTER)) { switch (c->imgtype) { case IMGTYPE_YUV111:
case IMGTYPE_RGB24:
for (VAR_7 = 0; VAR_7 < VAR_11; VAR_7++) { VAR_6 = VAR_7 * VAR_10 * 3; VAR_13 = VAR_5[VAR_6++]; VAR_17 = VAR_5[VAR_6++]; VAR_17+=(VAR_5[VAR_6++] << 8); for (VAR_8 = 1; VAR_8 < VAR_10; VAR_8++) { VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6]; VAR_17 -= (VAR_5[VAR_6+1] | (VAR_5[VAR_6+2]<<8)); VAR_5[VAR_6+1] = (VAR_17) & 0xff; VAR_5[VAR_6+2] = ((VAR_17)>>8) & 0xff; VAR_6 += 3; } } break; case IMGTYPE_YUV422:
for (VAR_7 = 0; VAR_7 < VAR_11; VAR_7++) { VAR_6 = VAR_7 * VAR_10 * 2; VAR_13 = VAR_15 = VAR_16 =0; for (VAR_8 = 0; VAR_8 < VAR_10/4; VAR_8++) { VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6]; VAR_5[VAR_6+1] = VAR_13 -= VAR_5[VAR_6+1]; VAR_5[VAR_6+2] = VAR_13 -= VAR_5[VAR_6+2]; VAR_5[VAR_6+3] = VAR_13 -= VAR_5[VAR_6+3]; VAR_5[VAR_6+4] = VAR_15 -= VAR_5[VAR_6+4]; VAR_5[VAR_6+5] = VAR_15 -= VAR_5[VAR_6+5]; VAR_5[VAR_6+6] = VAR_16 -= VAR_5[VAR_6+6]; VAR_5[VAR_6+7] = VAR_16 -= VAR_5[VAR_6+7]; VAR_6 += 8; } } break; case IMGTYPE_YUV411:
for (VAR_7 = 0; VAR_7 < VAR_11; VAR_7++) { VAR_6 = VAR_7 * VAR_10 / 2 * 3; VAR_13 = VAR_15 = VAR_16 =0; for (VAR_8 = 0; VAR_8 < VAR_10/4; VAR_8++) { VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6]; VAR_5[VAR_6+1] = VAR_13 -= VAR_5[VAR_6+1]; VAR_5[VAR_6+2] = VAR_13 -= VAR_5[VAR_6+2]; VAR_5[VAR_6+3] = VAR_13 -= VAR_5[VAR_6+3]; VAR_5[VAR_6+4] = VAR_15 -= VAR_5[VAR_6+4]; VAR_5[VAR_6+5] = VAR_16 -= VAR_5[VAR_6+5]; VAR_6 += 6; } } break; case IMGTYPE_YUV211:
for (VAR_7 = 0; VAR_7 < VAR_11; VAR_7++) { VAR_6 = VAR_7 * VAR_10 * 2; VAR_13 = VAR_15 = VAR_16 =0; for (VAR_8 = 0; VAR_8 < VAR_10/2; VAR_8++) { VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6]; VAR_5[VAR_6+1] = VAR_13 -= VAR_5[VAR_6+1]; VAR_5[VAR_6+2] = VAR_15 -= VAR_5[VAR_6+2]; VAR_5[VAR_6+3] = VAR_16 -= VAR_5[VAR_6+3]; VAR_6 += 4; } } break; case IMGTYPE_YUV420:
for (VAR_7 = 0; VAR_7 < VAR_11/2; VAR_7++) { VAR_6 = VAR_7 * VAR_10 * 3; VAR_13 = VAR_14 = VAR_15 = VAR_16 =0; for (VAR_8 = 0; VAR_8 < VAR_10/2; VAR_8++) { VAR_5[VAR_6] = VAR_13 -= VAR_5[VAR_6]; VAR_5[VAR_6+1] = VAR_13 -= VAR_5[VAR_6+1]; VAR_5[VAR_6+2] = VAR_14 -= VAR_5[VAR_6+2]; VAR_5[VAR_6+3] = VAR_14 -= VAR_5[VAR_6+3]; VAR_5[VAR_6+4] = VAR_15 -= VAR_5[VAR_6+4]; VAR_5[VAR_6+5] = VAR_16 -= VAR_5[VAR_6+5]; VAR_6 += 6; } } break; default:
av_log(VAR_0, AV_LOG_ERROR, "BUG! Unknown imagetype in pngfilter switch.\n"); return -1; } } switch (c->imgtype) { case IMGTYPE_YUV111:
for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) { VAR_6 = VAR_7 * c->pic.linesize[0]; for (VAR_8 = 0; VAR_8 < VAR_10; VAR_8++) { VAR_9[VAR_6++] = get_b(VAR_5[0], VAR_5[1]); VAR_9[VAR_6++] = get_g(VAR_5[0], VAR_5[1], VAR_5[2]); VAR_9[VAR_6++] = get_r(VAR_5[0], VAR_5[2]); VAR_5 += 3; } } break; case IMGTYPE_YUV422:
for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) { VAR_6 = VAR_7 * c->pic.linesize[0]; for (VAR_8 = 0; VAR_8 < VAR_10/4; VAR_8++) { VAR_9[VAR_6++] = get_b(VAR_5[0], VAR_5[4]); VAR_9[VAR_6++] = get_g(VAR_5[0], VAR_5[4], VAR_5[6]); VAR_9[VAR_6++] = get_r(VAR_5[0], VAR_5[6]); VAR_9[VAR_6++] = get_b(VAR_5[1], VAR_5[4]); VAR_9[VAR_6++] = get_g(VAR_5[1], VAR_5[4], VAR_5[6]); VAR_9[VAR_6++] = get_r(VAR_5[1], VAR_5[6]); VAR_9[VAR_6++] = get_b(VAR_5[2], VAR_5[5]); VAR_9[VAR_6++] = get_g(VAR_5[2], VAR_5[5], VAR_5[7]); VAR_9[VAR_6++] = get_r(VAR_5[2], VAR_5[7]); VAR_9[VAR_6++] = get_b(VAR_5[3], VAR_5[5]); VAR_9[VAR_6++] = get_g(VAR_5[3], VAR_5[5], VAR_5[7]); VAR_9[VAR_6++] = get_r(VAR_5[3], VAR_5[7]); VAR_5 += 8; } } break; case IMGTYPE_RGB24:
for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) { VAR_6 = VAR_7 * c->pic.linesize[0]; for (VAR_8 = 0; VAR_8 < VAR_10; VAR_8++) { VAR_9[VAR_6++] = VAR_5[0]; VAR_9[VAR_6++] = VAR_5[1]; VAR_9[VAR_6++] = VAR_5[2]; VAR_5 += 3; } } break; case IMGTYPE_YUV411:
for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) { VAR_6 = VAR_7 * c->pic.linesize[0]; for (VAR_8 = 0; VAR_8 < VAR_10/4; VAR_8++) { VAR_9[VAR_6++] = get_b(VAR_5[0], VAR_5[4]); VAR_9[VAR_6++] = get_g(VAR_5[0], VAR_5[4], VAR_5[5]); VAR_9[VAR_6++] = get_r(VAR_5[0], VAR_5[5]); VAR_9[VAR_6++] = get_b(VAR_5[1], VAR_5[4]); VAR_9[VAR_6++] = get_g(VAR_5[1], VAR_5[4], VAR_5[5]); VAR_9[VAR_6++] = get_r(VAR_5[1], VAR_5[5]); VAR_9[VAR_6++] = get_b(VAR_5[2], VAR_5[4]); VAR_9[VAR_6++] = get_g(VAR_5[2], VAR_5[4], VAR_5[5]); VAR_9[VAR_6++] = get_r(VAR_5[2], VAR_5[5]); VAR_9[VAR_6++] = get_b(VAR_5[3], VAR_5[4]); VAR_9[VAR_6++] = get_g(VAR_5[3], VAR_5[4], VAR_5[5]); VAR_9[VAR_6++] = get_r(VAR_5[3], VAR_5[5]); VAR_5 += 6; } } break; case IMGTYPE_YUV211:
for (VAR_7 = VAR_11 - 1; VAR_7 >= 0; VAR_7--) { VAR_6 = VAR_7 * c->pic.linesize[0]; for (VAR_8 = 0; VAR_8 < VAR_10/2; VAR_8++) { VAR_9[VAR_6++] = get_b(VAR_5[0], VAR_5[2]); VAR_9[VAR_6++] = get_g(VAR_5[0], VAR_5[2], VAR_5[3]); VAR_9[VAR_6++] = get_r(VAR_5[0], VAR_5[3]); VAR_9[VAR_6++] = get_b(VAR_5[1], VAR_5[2]); VAR_9[VAR_6++] = get_g(VAR_5[1], VAR_5[2], VAR_5[3]); VAR_9[VAR_6++] = get_r(VAR_5[1], VAR_5[3]); VAR_5 += 4; } } break; case IMGTYPE_YUV420:
for (VAR_7 = VAR_11 / 2 - 1; VAR_7 >= 0; VAR_7--) { VAR_6 = 2 * VAR_7 * c->pic.linesize[0]; for (VAR_8 = 0; VAR_8 < VAR_10/2; VAR_8++) { VAR_9[VAR_6] = get_b(VAR_5[0], VAR_5[4]); VAR_9[VAR_6+1] = get_g(VAR_5[0], VAR_5[4], VAR_5[5]); VAR_9[VAR_6+2] = get_r(VAR_5[0], VAR_5[5]); VAR_9[VAR_6+3] = get_b(VAR_5[1], VAR_5[4]); VAR_9[VAR_6+4] = get_g(VAR_5[1], VAR_5[4], VAR_5[5]); VAR_9[VAR_6+5] = get_r(VAR_5[1], VAR_5[5]); VAR_9[VAR_6-c->pic.linesize[0]] = get_b(VAR_5[2], VAR_5[4]); VAR_9[VAR_6-c->pic.linesize[0]+1] = get_g(VAR_5[2], VAR_5[4], VAR_5[5]); VAR_9[VAR_6-c->pic.linesize[0]+2] = get_r(VAR_5[2], VAR_5[5]); VAR_9[VAR_6-c->pic.linesize[0]+3] = get_b(VAR_5[3], VAR_5[4]); VAR_9[VAR_6-c->pic.linesize[0]+4] = get_g(VAR_5[3], VAR_5[4], VAR_5[5]); VAR_9[VAR_6-c->pic.linesize[0]+5] = get_r(VAR_5[3], VAR_5[5]); VAR_6 += 6; VAR_5 += 6; } } break; default:
av_log(VAR_0, AV_LOG_ERROR, "BUG! Unknown imagetype in image decoder.\n"); return -1; } *VAR_2 = sizeof(AVFrame); *(AVFrame*)VAR_1 = c->pic; return VAR_4; }