status_t TVINDevice::setParameters(CameraParameters& params) { int w, h; int framerate, local_framerate; int max_zoom, zoom, max_fps, min_fps; char tmp[128]; Mutex::Autolock lock(mLock); max_zoom = params.getInt(CameraParameters::KEY_MAX_ZOOM); zoom = params.getInt(CameraParameters::KEY_ZOOM); if (zoom > max_zoom) { FLOGE("Invalid zoom setting, zoom %d, max zoom %d", zoom, max_zoom); return BAD_VALUE; } if (!((strcmp(params.getPreviewFormat(), "yuv420sp") == 0) || (strcmp(params.getPreviewFormat(), "yuv420p") == 0) || (strcmp(params.getPreviewFormat(), "yuv422i-yuyv") == 0))) { FLOGE("Only yuv420sp or yuv420pis supported, but input format is %s", params.getPreviewFormat()); return BAD_VALUE; } if (strcmp(params.getPictureFormat(), "jpeg") != 0) { FLOGE("Only jpeg still pictures are supported"); return BAD_VALUE; } params.getPreviewSize(&w, &h); sprintf(tmp, "%dx%d", w, h); FLOGI("Set preview size: %s", tmp); if (strstr(mSupportedPreviewSizes, tmp) == NULL) { FLOGE("The preview size w %d, h %d is not corrected", w, h); return BAD_VALUE; } params.getPictureSize(&w, &h); sprintf(tmp, "%dx%d", w, h); FLOGI("Set picture size: %s", tmp); if (strstr(mSupportedPictureSizes, tmp) == NULL) { FLOGE("The picture size w %d, h %d is not corrected", w, h); return BAD_VALUE; } local_framerate = mParams.getPreviewFrameRate(); FLOGI("get local frame rate:%d FPS", local_framerate); if ((local_framerate > 30) || (local_framerate < 0)) { FLOGE("The framerate is not corrected"); local_framerate = 15; } framerate = params.getPreviewFrameRate(); FLOGI("Set frame rate:%d FPS", framerate); if ((framerate > 30) || (framerate < 0)) { FLOGE("The framerate is not corrected"); return BAD_VALUE; } else if (local_framerate != framerate) { if (framerate == 15) { params.set(CameraParameters::KEY_PREVIEW_FPS_RANGE, "12000,17000"); } else if (framerate == 30) { params.set(CameraParameters::KEY_PREVIEW_FPS_RANGE, "25000,33000"); } } int actual_fps = 15; params.getPreviewFpsRange(&min_fps, &max_fps); FLOGI("FPS range: %d - %d", min_fps, max_fps); if ((max_fps < 1000) || (min_fps < 1000) || (max_fps > 33000) || (min_fps > 33000)) { FLOGE("The fps range from %d to %d is error", min_fps, max_fps); return BAD_VALUE; } actual_fps = min_fps > 15000 ? 30 : 15; FLOGI("setParameters: actual_fps=%d", actual_fps); params.setPreviewFrameRate(actual_fps); mParams = params; return NO_ERROR; }