void ff_xvmc_init_block(MpegEncContext *s)
{
struct xvmc_pix_fmt *render = (struct xvmc_pix_fmt*)s->current_picture.data[2];
- assert(render && render->xvmc_id == AV_XVMC_RENDER_MAGIC);
+ assert(render && render->xvmc_id == AV_XVMC_ID);
s->block = (DCTELEM *)(render->data_blocks + render->next_free_data_block_num * 64);
}
const int mb_block_count = 4 + (1 << s->chroma_format);
assert(avctx);
- if (!render || render->xvmc_id != AV_XVMC_RENDER_MAGIC ||
+ if (!render || render->xvmc_id != AV_XVMC_ID ||
!render->data_blocks || !render->mv_blocks) {
av_log(avctx, AV_LOG_ERROR,
"Render token doesn't look as expected.\n");
next = (struct xvmc_pix_fmt*)s->next_picture.data[2];
if (!next)
return -1;
- if (next->xvmc_id != AV_XVMC_RENDER_MAGIC)
+ if (next->xvmc_id != AV_XVMC_ID)
return -1;
render->p_future_surface = next->p_surface;
// no return here, going to set forward prediction
last = (struct xvmc_pix_fmt*)s->last_picture.data[2];
if (!last)
last = render; // predict second field from the first
- if (last->xvmc_id != AV_XVMC_RENDER_MAGIC)
+ if (last->xvmc_id != AV_XVMC_ID)
return -1;
render->p_past_surface = last->p_surface;
return 0;
// start of XVMC-specific code
render = (struct xvmc_pix_fmt*)s->current_picture.data[2];
assert(render);
- assert(render->xvmc_id == AV_XVMC_RENDER_MAGIC);
+ assert(render->xvmc_id == AV_XVMC_ID);
assert(render->mv_blocks);
// take the next free macroblock
#define AV_XVMC_STATE_PREDICTION 2 /** the surface is needed for prediction, the codec manipulates this */
#define AV_XVMC_STATE_OSD_SOURCE 4 /** the surface is needed for subpicture rendering */
#endif
-#define AV_XVMC_RENDER_MAGIC 0x1DC711C0 /**< magic value to ensure that regular pixel routines haven't corrupted the struct
+#define AV_XVMC_ID 0x1DC711C0 /**< special value to ensure that regular pixel routines haven't corrupted the struct
the number is 1337 speak for the letters IDCT MCo (motion compensation) */
struct xvmc_pix_fmt {