try_palette 622 modules/videoio/src/cap_v4l.cpp if (try_palette(capture->deviceHandle, &capture->imageProperties, VIDEO_PALETTE_RGB24, 24)) { try_palette 625 modules/videoio/src/cap_v4l.cpp else if (try_palette(capture->deviceHandle, &capture->imageProperties, VIDEO_PALETTE_YUV420P, 16)) { try_palette 628 modules/videoio/src/cap_v4l.cpp else if (try_palette(capture->deviceHandle, &capture->imageProperties, VIDEO_PALETTE_YUV420, 16)) { try_palette 631 modules/videoio/src/cap_v4l.cpp else if (try_palette(capture->deviceHandle, &capture->imageProperties, VIDEO_PALETTE_YUV411P, 16)) {