* a little more compression by exploiting the fact that adjacent pixels
* tend to be similar.
*
- * Note that this decoder could use ffmpeg's optimized VLC facilities
+ * Note that this decoder could use libavcodec's optimized VLC facilities
* rather than naive, tree-based Huffman decoding. However, there are 256
* Huffman tables. Plus, the VLC bit coding order is right -> left instead
* or left -> right, so all of the bits would have to be reversed. Further,
hnode huff_nodes[256][HUF_TOKENS*2];
int num_huff_nodes[256];
+ uint32_t pal[256];
} IdcinContext;
/*
const uint8_t *buf = avpkt->data;
int buf_size = avpkt->size;
IdcinContext *s = avctx->priv_data;
- AVPaletteControl *palette_control = avctx->palctrl;
+ const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE, NULL);
s->buf = buf;
s->size = buf_size;
idcin_decode_vlcs(s);
- /* make the palette available on the way out */
- memcpy(s->frame.data[1], palette_control->palette, PALETTE_COUNT * 4);
- /* If palette changed inform application*/
- if (palette_control->palette_changed) {
- palette_control->palette_changed = 0;
+ if (pal) {
s->frame.palette_has_changed = 1;
+ memcpy(s->pal, pal, AVPALETTE_SIZE);
}
+ /* make the palette available on the way out */
+ memcpy(s->frame.data[1], s->pal, AVPALETTE_SIZE);
*data_size = sizeof(AVFrame);
*(AVFrame*)data = s->frame;
}
AVCodec ff_idcin_decoder = {
- "idcinvideo",
- AVMEDIA_TYPE_VIDEO,
- CODEC_ID_IDCIN,
- sizeof(IdcinContext),
- idcin_decode_init,
- NULL,
- idcin_decode_end,
- idcin_decode_frame,
- CODEC_CAP_DR1,
+ .name = "idcinvideo",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_IDCIN,
+ .priv_data_size = sizeof(IdcinContext),
+ .init = idcin_decode_init,
+ .close = idcin_decode_end,
+ .decode = idcin_decode_frame,
+ .capabilities = CODEC_CAP_DR1,
.long_name = NULL_IF_CONFIG_SMALL("id Quake II CIN video"),
};