generic-library/openh264
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

fix an improper mb-size assignment

Browse Source
This commit is contained in:
Sijia Chen 2015-05-08 11:10:19 +08:00
parent 7c868cab4d
commit 38ffbf7df4
1 changed files with 11 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
codec/encoder/core/src/svc_enc_slice_segment.cpp
View File

@ -280,33 +280,33 @@ bool GomValidCheckSliceMbNum (const int32_t kiMbWidth, const int32_t kiMbHeight,
iGomSize = kiMbWidth * GOM_ROW_MODE0_360P;
else
iGomSize = kiMbWidth * GOM_ROW_MODE0_720P;
// GOM boundary aligned
int32_t iNumMbAssigning = WELS_DIV_ROUND (INT_MULTIPLY * kiMbNumPerSlice, iGomSize * INT_MULTIPLY) * iGomSize;
int32_t iCurNumMbAssigning = 0;
iMinimalMbNum = iGomSize;
iMaximalMbNum = kiMbNumInFrame - (kuiSliceNum - 1) * iMinimalMbNum;
while (uiSliceIdx + 1 < kuiSliceNum) {
// GOM boundary aligned
int32_t iNumMbAssigning = WELS_DIV_ROUND (INT_MULTIPLY * kiMbNumPerSlice, iGomSize * INT_MULTIPLY) * iGomSize;
iMaximalMbNum = iNumMbLeft - (kuiSliceNum - uiSliceIdx - 1) * iMinimalMbNum; // get maximal num_mb in left parts
// make sure one GOM at least in each slice for safe
if (iNumMbAssigning < iMinimalMbNum)
iNumMbAssigning = iMinimalMbNum;
iCurNumMbAssigning = iMinimalMbNum;
else if (iNumMbAssigning > iMaximalMbNum)
iNumMbAssigning = iMaximalMbNum;
iCurNumMbAssigning = ( iMaximalMbNum / iGomSize ) * iGomSize;
else
iCurNumMbAssigning = iNumMbAssigning;
if (iNumMbAssigning <= 0) {
if (iCurNumMbAssigning <= 0) {
return false;
}
iNumMbLeft -= iNumMbAssigning;
iNumMbLeft -= iCurNumMbAssigning;
if (iNumMbLeft <= 0) {
return false;
}
pSlicesAssignList[uiSliceIdx] = iNumMbAssigning;
pSlicesAssignList[uiSliceIdx] = iCurNumMbAssigning;
++ uiSliceIdx;
iMaximalMbNum = iNumMbLeft - (kuiSliceNum - uiSliceIdx - 1) * iMinimalMbNum; // get maximal num_mb in left parts
}
pSlicesAssignList[uiSliceIdx] = iNumMbLeft;