Android Camera HAL拍照稳定性问题分析定位指南

1 拍照流程梳理

1.1 确认拍照帧号

拍照模式下拍照帧对应的captureIntent = 2
视频模式下拍照帧对应的captureIntent = 4

ProcessCaptureRequest表示request下发

chxusecase.cpp:945PreprocessCaptureRequest()Saving bufferforCHI Frame:58,requestFrame:58,NumBuff:2resultFrameIndexChi:58chxusecase.cpp:1018PreprocessCaptureRequest()Frame:58(idx:58)is a Snapshot,Setting isSnapshotStream TRUE

1.2 确认拍照场景

HDR拍照、MFNR拍照、SuperNight拍照等

1.3 确认拍照帧数信息

拍照所需帧数、ZSL帧、NZSL帧、ev等

1.4 确认拍照帧requestId/chiFrameNumber/fwkFrameNumber/SequenceId等对应关系

高通平台中，
chxusecase::PreprocessCaptureRequest中有定义fwkFrameNum/chiFrameNumber;