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valgrind caught uninitialized cond

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If the decoder crashes and returned an error before it set up
block offsets but after it set up frame buffers.   We had a
problem decoding the next keyframe because the block offsets
were never set.

Change-Id: Ied2866e9770d80fc66241d5e0d978d4f5f9cdd89
This commit is contained in:
Jim Bankoski
2012-09-07 16:38:15 -07:00
parent 488ba1ab9c
commit 2ff6d35064
1 changed files with 18 additions and 17 deletions
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35
vp8/decoder/decodframe.c
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@@ -1001,8 +1001,6 @@ int vp8_decode_frame(VP8D_COMP *pbi)
int corrupt_tokens = 0;
int prev_independent_partitions = pbi->independent_partitions;
int frame_size_change = 0;
/* start with no corruption of current frame */
xd->corrupted = 0;
pc->yv12_fb[pc->new_fb_idx].corrupted = 0;
@@ -1040,6 +1038,7 @@ int vp8_decode_frame(VP8D_COMP *pbi)
vp8_setup_version(pc);
if (pc->frame_type == KEY_FRAME)
{
const int Width = pc->Width;
@@ -1091,6 +1090,18 @@ int vp8_decode_frame(VP8D_COMP *pbi)
vpx_internal_error(&pc->error, VPX_CODEC_MEM_ERROR,
"Failed to allocate frame buffers");
vpx_memcpy(&xd->pre, &pc->yv12_fb[pc->lst_fb_idx], sizeof(YV12_BUFFER_CONFIG));
vpx_memcpy(&xd->dst, &pc->yv12_fb[pc->new_fb_idx], sizeof(YV12_BUFFER_CONFIG));
#if CONFIG_MULTITHREAD
for (i = 0; i < pbi->allocated_decoding_thread_count; i++)
{
pbi->mb_row_di[i].mbd.dst = pc->yv12_fb[pc->new_fb_idx];
vp8_build_block_doffsets(&pbi->mb_row_di[i].mbd);
}
#endif
vp8_build_block_doffsets(&pbi->mb);
/* allocate memory for last frame MODE_INFO array */
#if CONFIG_ERROR_CONCEALMENT
@@ -1126,11 +1137,14 @@ int vp8_decode_frame(VP8D_COMP *pbi)
#else
(void)prev_mb_rows;
#endif
frame_size_change = 1;
}
}
else
{
vpx_memcpy(&xd->pre, &pc->yv12_fb[pc->lst_fb_idx], sizeof(YV12_BUFFER_CONFIG));
vpx_memcpy(&xd->dst, &pc->yv12_fb[pc->new_fb_idx], sizeof(YV12_BUFFER_CONFIG));
}
}
if ((!pbi->decoded_key_frame && pc->frame_type != KEY_FRAME) ||
pc->Width == 0 || pc->Height == 0)
{
@@ -1381,8 +1395,6 @@ int vp8_decode_frame(VP8D_COMP *pbi)
}
}
vpx_memcpy(&xd->pre, &pc->yv12_fb[pc->lst_fb_idx], sizeof(YV12_BUFFER_CONFIG));
vpx_memcpy(&xd->dst, &pc->yv12_fb[pc->new_fb_idx], sizeof(YV12_BUFFER_CONFIG));
/* set up frame new frame for intra coded blocks */
#if CONFIG_MULTITHREAD
@@ -1390,17 +1402,6 @@ int vp8_decode_frame(VP8D_COMP *pbi)
#endif
vp8_setup_intra_recon(&pc->yv12_fb[pc->new_fb_idx]);
if(frame_size_change)
{
#if CONFIG_MULTITHREAD
for (i = 0; i < pbi->allocated_decoding_thread_count; i++)
{
pbi->mb_row_di[i].mbd.dst = pc->yv12_fb[pc->new_fb_idx];
vp8_build_block_doffsets(&pbi->mb_row_di[i].mbd);
}
#endif
vp8_build_block_doffsets(&pbi->mb);
}
/* clear out the coeff buffer */
vpx_memset(xd->qcoeff, 0, sizeof(xd->qcoeff));