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Reset segment id if we decide not to update segment map

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This avoids potential encoder and decoder mismatch.

Change-Id: I5282d3e168afc6193033ad3fce8fbc35618ab2f5
(cherry picked from commit 386e4ba2f0)
This commit is contained in:
hui su 2016-07-25 17:08:10 -07:00 committed by James Zern
parent 42ebe3b783
commit eb9a4b97c5
1 changed files with 8 additions and 0 deletions
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8
src/enc/frame.c
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@ -185,6 +185,13 @@ static int GetProba(int a, int b) {
: (255 * a + total / 2) / total; // rounded proba
}
static void ResetSegments(VP8Encoder* const enc) {
int n;
for (n = 0; n < enc->mb_w_ * enc->mb_h_; ++n) {
enc->mb_info_[n].segment_ = 0;
}
}
static void SetSegmentProbas(VP8Encoder* const enc) {
int p[NUM_MB_SEGMENTS] = { 0 };
int n;
@ -206,6 +213,7 @@ static void SetSegmentProbas(VP8Encoder* const enc) {
enc->segment_hdr_.update_map_ =
(probas[0] != 255) || (probas[1] != 255) || (probas[2] != 255);
if (!enc->segment_hdr_.update_map_) ResetSegments(enc);
enc->segment_hdr_.size_ =
p[0] * (VP8BitCost(0, probas[0]) + VP8BitCost(0, probas[1])) +
p[1] * (VP8BitCost(0, probas[0]) + VP8BitCost(1, probas[1])) +