| 24 | namespace exporter { |
| 25 | |
| 26 | static bool IsKeyFrame(pag::Frame curFrame, pag::Frame lastKeyFrame, int diffSize, int fullSize, |
| 27 | int keyFrameRate) { |
| 28 | pag::Frame frameDistance = curFrame - lastKeyFrame; |
| 29 | if (curFrame == 0) { |
| 30 | return true; |
| 31 | } |
| 32 | if (diffSize == 0) { |
| 33 | return false; |
| 34 | } |
| 35 | if (diffSize == fullSize) { |
| 36 | return true; |
| 37 | } |
| 38 | if (diffSize > (fullSize * 0.9) && frameDistance > 5) { |
| 39 | return true; |
| 40 | } |
| 41 | if (diffSize > (fullSize * 0.75) && keyFrameRate > 20 && frameDistance > (keyFrameRate / 2)) { |
| 42 | return true; |
| 43 | } |
| 44 | if (keyFrameRate > 0 && frameDistance > keyFrameRate) { |
| 45 | return true; |
| 46 | } |
| 47 | |
| 48 | return false; |
| 49 | } |
| 50 | |
| 51 | void GetBitmapSequence(std::shared_ptr<PAGExportSession> session, |
| 52 | pag::BitmapComposition* composition, float compositionFactor) { |