I do not have iPhone 6s plus with me but I need to correctly select AVCaptureDeviceFormat that supports 4K recording as well as Optical image stabilization. Does anyone have the dump of device formats array and can post it here ?
iPhone 6s plus device formats array
Here is the formats list from iPhone 6S (not Plus)
"<AVCaptureDeviceFormat: 0x14f9fbb30 'vide'/'420v' 192x 144, { 3- 30 fps}, HRSI:4032x3024, fov:57.702, max zoom:189.00 (upscales @21.00), AF System:2, ISO:23.0-1472.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9fa9e0 'vide'/'420f' 192x 144, { 3- 30 fps}, HRSI:4032x3024, fov:57.702, max zoom:189.00 (upscales @21.00), AF System:2, ISO:23.0-1472.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9fb260 'vide'/'420v' 352x 288, { 3- 30 fps}, HRSI:3696x3024, fov:52.893, max zoom:189.00 (upscales @10.50), AF System:2, ISO:23.0-1472.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9fb2b0 'vide'/'420f' 352x 288, { 3- 30 fps}, HRSI:3696x3024, fov:52.893, max zoom:189.00 (upscales @10.50), AF System:2, ISO:23.0-1472.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9faa30 'vide'/'420v' 480x 360, { 3- 30 fps}, HRSI:4032x3024, fov:57.702, max zoom:189.00 (upscales @8.40), AF System:2, ISO:23.0-1472.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9f6eb0 'vide'/'420f' 480x 360, { 3- 30 fps}, HRSI:4032x3024, fov:57.702, max zoom:189.00 (upscales @8.40), AF System:2, ISO:23.0-1472.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f994ff0 'vide'/'420v' 640x 480, { 3- 30 fps}, HRSI:4032x3024, fov:57.702, max zoom:189.00 (upscales @6.30), AF System:2, ISO:23.0-1472.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9f5b60 'vide'/'420f' 640x 480, { 3- 30 fps}, HRSI:4032x3024, fov:57.702, max zoom:189.00 (upscales @6.30), AF System:2, ISO:23.0-1472.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f946670 'vide'/'420v' 960x 540, { 3- 30 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:130.88 (upscales @3.88), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9f72f0 'vide'/'420f' 960x 540, { 3- 30 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:130.88 (upscales @3.88), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9f5720 'vide'/'420v' 960x 540, { 3- 60 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:130.88 (upscales @3.88), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9f2ca0 'vide'/'420f' 960x 540, { 3- 60 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:130.88 (upscales @3.88), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f99e120 'vide'/'420v' 1280x 720, { 3- 30 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:120.00 (upscales @2.91), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f99e9a0 'vide'/'420f' 1280x 720, { 3- 30 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:120.00 (upscales @2.91), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f995430 'vide'/'420v' 1280x 720, { 3- 60 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:120.00 (upscales @2.91), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f996b80 'vide'/'420f' 1280x 720, { 3- 60 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:120.00 (upscales @2.91), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f994bb0 'vide'/'420v' 1280x 720, { 5-240 fps}, fov:58.632, binned, supports vis, max zoom:65.50 (upscales @1.45), AF System:1, ISO:23.0-736.0, SS:0.000006-0.200000>",
"<AVCaptureDeviceFormat: 0x14f922720 'vide'/'420f' 1280x 720, { 5-240 fps}, fov:58.632, binned, supports vis, max zoom:65.50 (upscales @1.45), AF System:1, ISO:23.0-736.0, SS:0.000006-0.200000>",
"<AVCaptureDeviceFormat: 0x14f9f8830 'vide'/'420v' 1920x1080, { 3- 30 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:4.00 (upscales @1.94), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9f1ba0 'vide'/'420f' 1920x1080, { 3- 30 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:4.00 (upscales @1.94), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9f1fe0 'vide'/'420v' 1920x1080, { 3- 60 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:4.00 (upscales @1.94), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9e0770 'vide'/'420f' 1920x1080, { 3- 60 fps}, HRSI:4096x2304, fov:58.632, supports vis, max zoom:4.00 (upscales @1.94), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9f0aa0 'vide'/'420v' 1920x1080, { 3-120 fps}, fov:58.632, binned, supports vis, max zoom:65.50 (upscales @1.00), AF System:1, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9df670 'vide'/'420f' 1920x1080, { 3-120 fps}, fov:58.632, binned, supports vis, max zoom:65.50 (upscales @1.00), AF System:1, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9f0220 'vide'/'420v' 2592x1936, { 3- 30 fps}, HRSI:4032x3024, fov:57.716, max zoom:189.00 (upscales @1.56), AF System:2, ISO:23.0-1840.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9e3630 'vide'/'420f' 2592x1936, { 3- 30 fps}, HRSI:4032x3024, fov:57.716, max zoom:189.00 (upscales @1.56), AF System:2, ISO:23.0-1840.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9e4730 'vide'/'420v' 3264x2448, { 3- 30 fps}, HRSI:4032x3024, fov:57.716, max zoom:189.00 (upscales @1.24), AF System:2, ISO:23.0-1840.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9e42f0 'vide'/'420f' 3264x2448, { 3- 30 fps}, HRSI:4032x3024, fov:57.716, max zoom:189.00 (upscales @1.24), AF System:2, ISO:23.0-1840.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9dfef0 'vide'/'420v' 3840x2160, { 3- 30 fps}, fov:58.632, supports vis, max zoom:130.88 (upscales @1.00), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9e3eb0 'vide'/'420f' 3840x2160, { 3- 30 fps}, fov:58.632, supports vis, max zoom:130.88 (upscales @1.00), AF System:2, ISO:23.0-736.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9e0b90 'vide'/'420v' 4032x3024, { 3- 30 fps}, fov:57.716, max zoom:189.00 (upscales @1.00), AF System:2, ISO:23.0-1840.0, SS:0.000013-0.333333>",
"<AVCaptureDeviceFormat: 0x14f9ea8e0 'vide'/'420f' 4032x3024, { 3- 30 fps}, fov:57.716, max zoom:189.00 (upscales @1.00), AF System:2, ISO:23.0-1840.0, SS:0.000013-0.333333>"