android.hardware.camera2.cts.RecordingTest#testBasicRecording

CTS Test：testBasicRecordingCTS fail：Video duration doesn't match: recorded 2619.000000ms, expected [4650.000000,4650.000000]ms.从fail的原因来看，是帧率过大导致的（一般此项fail原因都是帧率不够导致）

Log 分析：

12-31 18:13:49.889   523   957 I mtkcam-dev3: 2[CameraDevice3Impl::open] open camera3 device (device@3.4/internal/2) systraceLevel(1)

12-31 18:14:02.105   523  8612 I MtkCam/ppl_context: [dump]     [APP     ] 09  176x144  OUT t:0/r:0 maxBuffers:11 d/s:0x00000000(UNKNOWN) Hal-Client-usage:0x900(0|HW_TEXTURE|HW_COMPOSER) Real:0x32315659(YV12) Request:0x22(IMPLEMENTATION_DEFINED) Override:0x32315659(YV12) Hal-usage:0x20033(0|SW_READ_OFTEN|SW_WRITE_OFTEN|HW_CAMERA_WRITE) HalStream::(consumer/producer)Usage:0/0x20033 bufOffset:  0 rowStrideInBytes/sizeInBytes: 176/25344 96/6912 96/14112 s9:d2:App:YV12:0|HW_TEXTURE|HW_COMPOSER 0x7231e0d140

12-31 18:14:02.105   523  8612 I MtkCam/ppl_context: [dump]     [APP     ] 10  176x144  OUT t:0/r:0 maxBuffers:8 d/s:0x00000103(BT601_525) Hal-Client-usage:0x10000(0|HW_VIDEO_ENCODER) Real:0x32315659(YV12) Request:0x22(IMPLEMENTATION_DEFINED) Override:0x22(IMPLEMENTATION_DEFINED) Hal-usage:0x20033(0|SW_READ_OFTEN|SW_WRITE_OFTEN|HW_CAMERA_WRITE) HalStream::(consumer/producer)Usage:0/0x20033 bufOffset:  0 rowStrideInBytes/sizeInBytes: 176/25344 96/6912 96/14112 s10:d2:App:YV12:0|HW_VIDEO_ENCODER 0x725e7fd380

 

18:14:05.361   457   490 I BufferQueueProducer: [SurfaceView - android.camera.cts/android.hardware.camera2.cts.Camera2SurfaceViewCtsActivity#0](this:0x761ecc7800,id:46,api:4,p:502,c:457) queueBuffer: fps=30.25 dur=1024.82 max=35.76 min=25.20

 

从Log分析出，在测试176x144这一组size的时候，录像的帧率为30，然后看CTS源码：

Recorded的获取：

MediaExtractor extractor = new MediaExtractor();

extractor.setDataSource(mOutMediaFileName);

MediaFormat format = extractor.getTrackFormat(i);

durationUs = format.getLong(MediaFormat.KEY_DURATION);

float duration = (float) (durationUs / 1000);

 

Expected的获取：

CamcorderProfile profile = CamcorderProfile.get(cameraId, profileId);

float frameDurationMs = 1000.0f / profile.videoFrameRate;

float durationMs = resultListener.getTotalNumFrames() * frameDurationMs;

期望的帧率是从Profile里面获取的，找到media profiles对应的camera2配置的176x144这组size，frameRate配置为20，因此fail。

  有两种修改方法

第一种修改media profiles对应Camera ，对应fail项size的frameRate和drvier输出的帧率一致；

第二种修改drvier对应video size的帧率和media profiles一致