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Implemented a first version of the motion vector extrapolation error

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concealment algorithm. Tested on foreman_cif.yuv only. Some special
cases are still not handled in a good way, for instance when receiving
intra blocks without coefficients.

Change-Id: Ie7bb41855860923b313645dacb3cf70f1e350549
This commit is contained in:
Stefan Holmer
2011-04-01 11:48:30 +02:00
parent 83a2b4e114
commit a2951d8deb
10 changed files with 644 additions and 47 deletions
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12
vp8/decoder/decodframe.c
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@@ -227,8 +227,8 @@ void vp8_decode_macroblock(VP8D_COMP *pbi, MACROBLOCKD *xd, unsigned int mb_idx)
}
/* TODO(holmer): change when we have MB level error tracking */
if (xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME &&
(xd->corrupted || mb_idx >= pbi->mvs_corrupt_from_mb))
if (pbi->ec_enabled && xd->mode_info_context->mbmi.ref_frame != INTRA_FRAME
&& (xd->corrupted || mb_idx >= pbi->mvs_corrupt_from_mb))
{
vp8_conceal_corrupt_block(xd);
return;
@@ -664,6 +664,11 @@ int vp8_decode_frame(VP8D_COMP *pbi)
vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate frame buffers");
if (vp8_alloc_overlap_lists(pbi))
vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate overlap lists for "
"error concealment");
#if CONFIG_MULTITHREAD
if (pbi->b_multithreaded_rd)
vp8mt_alloc_temp_buffers(pbi, pc->Width, prev_mb_rows);
@@ -890,7 +895,8 @@ int vp8_decode_frame(VP8D_COMP *pbi)
vp8_decode_mode_mvs(pbi);
if (pbi->ec_enabled && pbi->mvs_corrupt_from_mb < (unsigned int)pc->mb_cols * pc->mb_rows)
if (pbi->ec_enabled &&
pbi->mvs_corrupt_from_mb < (unsigned int)pc->mb_cols * pc->mb_rows)
{
vp8_estimate_missing_mvs(pbi);
}