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Cleared the EXT_REFS code to make it more legible.

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Change-Id: I309c4e16fd305bcfa590d14f957a9598d23c7ee6
This commit is contained in:
Zoe Liu
2015-12-17 16:46:28 -08:00
parent ec36a2b061
commit a4d0c7148b
1 changed files with 4 additions and 12 deletions
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16
vp10/encoder/bitstream.c
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@@ -1483,14 +1483,15 @@ static void write_tile_info(const VP10_COMMON *const cm,
}
static int get_refresh_mask(VP10_COMP *cpi) {
#if CONFIG_EXT_REFS
int refresh_mask = 0;
#if CONFIG_EXT_REFS
int ref_frame;
for (ref_frame = LAST_FRAME; ref_frame <= LAST4_FRAME; ++ref_frame) {
refresh_mask |= (cpi->refresh_last_frames[ref_frame - LAST_FRAME] <<
cpi->lst_fb_idxes[ref_frame - LAST_FRAME]);
}
#else
refresh_mask = cpi->refresh_last_frame << cpi->lst_fb_idx;
#endif // CONFIG_EXT_REFS
if (vp10_preserve_existing_gf(cpi)) {
@@ -1504,23 +1505,14 @@ static int get_refresh_mask(VP10_COMP *cpi) {
// Note: This is highly specific to the use of ARF as a forward reference,
// and this needs to be generalized as other uses are implemented
// (like RTC/temporal scalability).
#if CONFIG_EXT_REFS
return refresh_mask |
#else
return (cpi->refresh_last_frame << cpi->lst_fb_idx) |
#endif // CONFIG_EXT_REFS
(cpi->refresh_golden_frame << cpi->alt_fb_idx);
return refresh_mask | (cpi->refresh_golden_frame << cpi->alt_fb_idx);
} else {
int arf_idx = cpi->alt_fb_idx;
if ((cpi->oxcf.pass == 2) && cpi->multi_arf_allowed) {
const GF_GROUP *const gf_group = &cpi->twopass.gf_group;
arf_idx = gf_group->arf_update_idx[gf_group->index];
}
#if CONFIG_EXT_REFS
return refresh_mask |
#else
return (cpi->refresh_last_frame << cpi->lst_fb_idx) |
#endif // CONFIG_EXT_REFS
(cpi->refresh_golden_frame << cpi->gld_fb_idx) |
(cpi->refresh_alt_ref_frame << arf_idx);
}