static int cdxl_decode_frame(AVCodecContext *avctx, void *data,

                             int *data_size, AVPacket *pkt)

{

    CDXLVideoContext *c = avctx->priv_data;

    AVFrame * const p = &c->frame;

    int ret, w, h, encoding, format, buf_size = pkt->size;

    const uint8_t *buf = pkt->data;



    if (buf_size < 32)

        return AVERROR_INVALIDDATA;

    encoding        = buf[1] & 7;

    format          = buf[1] & 0xE0;

    w               = AV_RB16(&buf[14]);

    h               = AV_RB16(&buf[16]);

    c->bpp          = buf[19];

    c->palette_size = AV_RB16(&buf[20]);

    c->palette      = buf + 32;

    c->video        = c->palette + c->palette_size;

    c->video_size   = buf_size - c->palette_size - 32;



    if (c->palette_size > 512)

        return AVERROR_INVALIDDATA;

    if (buf_size < c->palette_size + 32)

        return AVERROR_INVALIDDATA;

    if (c->bpp < 1)

        return AVERROR_INVALIDDATA;

    if (c->bpp > 8) {

        av_log_ask_for_sample(avctx, "unsupported pixel size: %d\n", c->bpp);

        return AVERROR_PATCHWELCOME;

    }

    if (format) {

        av_log_ask_for_sample(avctx, "unsupported pixel format: %d\n", format);

        return AVERROR_PATCHWELCOME;

    }



    if ((ret = av_image_check_size(w, h, 0, avctx)) < 0)

        return ret;

    if (w != avctx->width || h != avctx->height)

        avcodec_set_dimensions(avctx, w, h);



    if (c->video_size < FFALIGN(avctx->width, 16) * avctx->height * c->bpp / 8)

        return AVERROR_INVALIDDATA;

    if (!encoding && c->palette_size && c->bpp <= 8) {

        avctx->pix_fmt = PIX_FMT_PAL8;

    } else if (encoding == 1 && (c->bpp == 6 || c->bpp == 8)) {

        if (c->palette_size != (1 << (c->bpp - 1)))

            return AVERROR_INVALIDDATA;

        avctx->pix_fmt = PIX_FMT_BGR24;

    } else {

        av_log_ask_for_sample(avctx, "unsupported encoding %d and bpp %d\n",

                              encoding, c->bpp);

        return AVERROR_PATCHWELCOME;

    }



    if (p->data[0])

        avctx->release_buffer(avctx, p);



    p->reference = 0;

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

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

        return ret;

    }

    p->pict_type = AV_PICTURE_TYPE_I;



    if (encoding) {

        av_fast_padded_malloc(&c->new_video, &c->new_video_size,

                              h * w + FF_INPUT_BUFFER_PADDING_SIZE);

        if (!c->new_video)

            return AVERROR(ENOMEM);

        if (c->bpp == 8)

            cdxl_decode_ham8(c);

        else

            cdxl_decode_ham6(c);

    } else {

        cdxl_decode_rgb(c);

    }

    *data_size      = sizeof(AVFrame);

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



    return buf_size;

}

static int cdxl_decode_frame(AVCodecContext *avctx, void *data,

                             int *data_size, AVPacket *pkt)

{

    CDXLVideoContext *c = avctx->priv_data;

    AVFrame * const p = &c->frame;

    int ret, w, h, encoding, format, buf_size = pkt->size;

    const uint8_t *buf = pkt->data;



    if (buf_size < 32)

        return AVERROR_INVALIDDATA;

    encoding        = buf[1] & 7;

    format          = buf[1] & 0xE0;

    w               = AV_RB16(&buf[14]);

    h               = AV_RB16(&buf[16]);

    c->bpp          = buf[19];

    c->palette_size = AV_RB16(&buf[20]);

    c->palette      = buf + 32;

    c->video        = c->palette + c->palette_size;

    c->video_size   = buf_size - c->palette_size - 32;



    if (c->palette_size > 512)

        return AVERROR_INVALIDDATA;

    if (buf_size < c->palette_size + 32)

        return AVERROR_INVALIDDATA;

    if (c->bpp < 1)

        return AVERROR_INVALIDDATA;

    if (c->bpp > 8) {

        av_log_ask_for_sample(avctx, "unsupported pixel size: %d\n", c->bpp);

        return AVERROR_PATCHWELCOME;

    }

    if (format) {

        av_log_ask_for_sample(avctx, "unsupported pixel format: %d\n", format);

        return AVERROR_PATCHWELCOME;

    }



    if ((ret = av_image_check_size(w, h, 0, avctx)) < 0)

        return ret;

    if (w != avctx->width || h != avctx->height)

        avcodec_set_dimensions(avctx, w, h);



    if (c->video_size < FFALIGN(avctx->width, 16) * avctx->height * c->bpp / 8)

        return AVERROR_INVALIDDATA;

    if (!encoding && c->palette_size && c->bpp <= 8) {

        avctx->pix_fmt = PIX_FMT_PAL8;

    } else if (encoding == 1 && (c->bpp == 6 || c->bpp == 8)) {

        if (c->palette_size != (1 << (c->bpp - 1)))

            return AVERROR_INVALIDDATA;

        avctx->pix_fmt = PIX_FMT_BGR24;

    } else {

        av_log_ask_for_sample(avctx, "unsupported encoding %d and bpp %d\n",

                              encoding, c->bpp);

        return AVERROR_PATCHWELCOME;

    }



    if (p->data[0])

        avctx->release_buffer(avctx, p);



    p->reference = 0;

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

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

        return ret;

    }

    p->pict_type = AV_PICTURE_TYPE_I;



    if (encoding) {

        av_fast_padded_malloc(&c->new_video, &c->new_video_size,

                              h * w + FF_INPUT_BUFFER_PADDING_SIZE);

        if (!c->new_video)

            return AVERROR(ENOMEM);

        if (c->bpp == 8)

            cdxl_decode_ham8(c);

        else

            cdxl_decode_ham6(c);

    } else {

        cdxl_decode_rgb(c);

    }

    *data_size      = sizeof(AVFrame);

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



    return buf_size;

}

static int FUNC_0(AVCodecContext *VAR_0, void *VAR_1,

                             int *VAR_2, AVPacket *VAR_3)

{

    CDXLVideoContext *c = VAR_0->priv_data;

    AVFrame * const p = &c->frame;

    int VAR_4, VAR_5, VAR_6, VAR_7, VAR_8, VAR_9 = VAR_3->size;

    const uint8_t *VAR_10 = VAR_3->VAR_1;



    if (VAR_9 < 32)

        return AVERROR_INVALIDDATA;

    VAR_7        = VAR_10[1] & 7;

    VAR_8          = VAR_10[1] & 0xE0;

    VAR_5               = AV_RB16(&VAR_10[14]);

    VAR_6               = AV_RB16(&VAR_10[16]);

    c->bpp          = VAR_10[19];

    c->palette_size = AV_RB16(&VAR_10[20]);

    c->palette      = VAR_10 + 32;

    c->video        = c->palette + c->palette_size;

    c->video_size   = VAR_9 - c->palette_size - 32;



    if (c->palette_size > 512)

        return AVERROR_INVALIDDATA;

    if (VAR_9 < c->palette_size + 32)

        return AVERROR_INVALIDDATA;

    if (c->bpp < 1)

        return AVERROR_INVALIDDATA;

    if (c->bpp > 8) {

        av_log_ask_for_sample(VAR_0, "unsupported pixel size: %d\n", c->bpp);

        return AVERROR_PATCHWELCOME;

    }

    if (VAR_8) {

        av_log_ask_for_sample(VAR_0, "unsupported pixel VAR_8: %d\n", VAR_8);

        return AVERROR_PATCHWELCOME;

    }



    if ((VAR_4 = av_image_check_size(VAR_5, VAR_6, 0, VAR_0)) < 0)

        return VAR_4;

    if (VAR_5 != VAR_0->width || VAR_6 != VAR_0->height)

        avcodec_set_dimensions(VAR_0, VAR_5, VAR_6);



    if (c->video_size < FFALIGN(VAR_0->width, 16) * VAR_0->height * c->bpp / 8)

        return AVERROR_INVALIDDATA;

    if (!VAR_7 && c->palette_size && c->bpp <= 8) {

        VAR_0->pix_fmt = PIX_FMT_PAL8;

    } else if (VAR_7 == 1 && (c->bpp == 6 || c->bpp == 8)) {

        if (c->palette_size != (1 << (c->bpp - 1)))

            return AVERROR_INVALIDDATA;

        VAR_0->pix_fmt = PIX_FMT_BGR24;

    } else {

        av_log_ask_for_sample(VAR_0, "unsupported VAR_7 %d and bpp %d\n",

                              VAR_7, c->bpp);

        return AVERROR_PATCHWELCOME;

    }



    if (p->VAR_1[0])

        VAR_0->release_buffer(VAR_0, p);



    p->reference = 0;

    if ((VAR_4 = VAR_0->get_buffer(VAR_0, p)) < 0) {

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

        return VAR_4;

    }

    p->pict_type = AV_PICTURE_TYPE_I;



    if (VAR_7) {

        av_fast_padded_malloc(&c->new_video, &c->new_video_size,

                              VAR_6 * VAR_5 + FF_INPUT_BUFFER_PADDING_SIZE);

        if (!c->new_video)

            return AVERROR(ENOMEM);

        if (c->bpp == 8)

            cdxl_decode_ham8(c);

        else

            cdxl_decode_ham6(c);

    } else {

        cdxl_decode_rgb(c);

    }

    *VAR_2      = sizeof(AVFrame);

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



    return VAR_9;

}

static int FUNC_0(AVCodecContext *VAR_0, void *VAR_1,
int *VAR_2, AVPacket *VAR_3)
{ CDXLVideoContext *c = VAR_0->priv_data; AVFrame * const p = &c->frame; int VAR_4, VAR_5, VAR_6, VAR_7, VAR_8, VAR_9 = VAR_3->size; const uint8_t *VAR_10 = VAR_3->VAR_1; if (VAR_9 < 32)
return AVERROR_INVALIDDATA; VAR_7        = VAR_10[1] & 7; VAR_8          = VAR_10[1] & 0xE0; VAR_5               = AV_RB16(&VAR_10[14]); VAR_6               = AV_RB16(&VAR_10[16]); c->bpp          = VAR_10[19]; c->palette_size = AV_RB16(&VAR_10[20]); c->palette      = VAR_10 + 32; c->video        = c->palette + c->palette_size; c->video_size   = VAR_9 - c->palette_size - 32; if (c->palette_size > 512)
return AVERROR_INVALIDDATA; if (VAR_9 < c->palette_size + 32)
return AVERROR_INVALIDDATA; if (c->bpp < 1)
return AVERROR_INVALIDDATA; if (c->bpp > 8) { av_log_ask_for_sample(VAR_0, "unsupported pixel size: %d\n", c->bpp); return AVERROR_PATCHWELCOME; } if (VAR_8) { av_log_ask_for_sample(VAR_0, "unsupported pixel VAR_8: %d\n", VAR_8); return AVERROR_PATCHWELCOME; } if ((VAR_4 = av_image_check_size(VAR_5, VAR_6, 0, VAR_0)) < 0)
return VAR_4; if (VAR_5 != VAR_0->width || VAR_6 != VAR_0->height)
avcodec_set_dimensions(VAR_0, VAR_5, VAR_6); if (c->video_size < FFALIGN(VAR_0->width, 16) * VAR_0->height * c->bpp / 8)
return AVERROR_INVALIDDATA; if (!VAR_7 && c->palette_size && c->bpp <= 8) { VAR_0->pix_fmt = PIX_FMT_PAL8; } else if (VAR_7 == 1 && (c->bpp == 6 || c->bpp == 8)) { if (c->palette_size != (1 << (c->bpp - 1)))
return AVERROR_INVALIDDATA; VAR_0->pix_fmt = PIX_FMT_BGR24; } else { av_log_ask_for_sample(VAR_0, "unsupported VAR_7 %d and bpp %d\n",
VAR_7, c->bpp); return AVERROR_PATCHWELCOME; } if (p->VAR_1[0])
VAR_0->release_buffer(VAR_0, p); p->reference = 0; if ((VAR_4 = VAR_0->get_buffer(VAR_0, p)) < 0) { av_log(VAR_0, AV_LOG_ERROR, "get_buffer() failed\n"); return VAR_4; } p->pict_type = AV_PICTURE_TYPE_I; if (VAR_7) { av_fast_padded_malloc(&c->new_video, &c->new_video_size,
VAR_6 * VAR_5 + FF_INPUT_BUFFER_PADDING_SIZE); if (!c->new_video)
return AVERROR(ENOMEM); if (c->bpp == 8)
cdxl_decode_ham8(c); else
cdxl_decode_ham6(c); } else { cdxl_decode_rgb(c); } *VAR_2      = sizeof(AVFrame); *(AVFrame*)VAR_1 = c->frame; return VAR_9; }