1 // Copyright 2015 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 // Note: ported from Chromium commit head: 006301b 5 // Note: only necessary functions are ported from video_types.h 6 7 #ifndef VIDEO_PIXEL_FORMAT_H_ 8 #define VIDEO_PIXEL_FORMAT_H_ 9 10 namespace media { 11 12 // Pixel formats roughly based on FOURCC labels, see: 13 // http://www.fourcc.org/rgb.php and http://www.fourcc.org/yuv.php 14 // Logged to UMA, so never reuse values. Leave gaps if necessary. 15 // Ordered as planar, semi-planar, YUV-packed, and RGB formats. 16 enum VideoPixelFormat { 17 PIXEL_FORMAT_UNKNOWN = 0, // Unknown or unspecified format value. 18 PIXEL_FORMAT_I420 = 19 1, // 12bpp YUV planar 1x1 Y, 2x2 UV samples, a.k.a. YU12. 20 21 // Note: Chrome does not actually support YVU compositing, so you probably 22 // don't actually want to use this. See http://crbug.com/784627. 23 PIXEL_FORMAT_YV12 = 2, // 12bpp YVU planar 1x1 Y, 2x2 VU samples. 24 25 PIXEL_FORMAT_I422 = 3, // 16bpp YUV planar 1x1 Y, 2x1 UV samples. 26 PIXEL_FORMAT_I420A = 4, // 20bpp YUVA planar 1x1 Y, 2x2 UV, 1x1 A samples. 27 PIXEL_FORMAT_I444 = 5, // 24bpp YUV planar, no subsampling. 28 PIXEL_FORMAT_NV12 = 29 6, // 12bpp with Y plane followed by a 2x2 interleaved UV plane. 30 PIXEL_FORMAT_NV21 = 31 7, // 12bpp with Y plane followed by a 2x2 interleaved VU plane. 32 PIXEL_FORMAT_UYVY = 33 8, // 16bpp interleaved 2x1 U, 1x1 Y, 2x1 V, 1x1 Y samples. 34 PIXEL_FORMAT_YUY2 = 35 9, // 16bpp interleaved 1x1 Y, 2x1 U, 1x1 Y, 2x1 V samples. 36 PIXEL_FORMAT_ARGB = 10, // 32bpp ARGB, 1 plane. 37 PIXEL_FORMAT_XRGB = 11, // 24bpp XRGB, 1 plane. 38 PIXEL_FORMAT_RGB24 = 12, // 24bpp BGR, 1 plane. 39 PIXEL_FORMAT_RGB32 = 13, // 32bpp BGRA, 1 plane. 40 PIXEL_FORMAT_MJPEG = 14, // MJPEG compressed. 41 // MediaTek proprietary format. MT21 is similar to NV21 except the memory 42 // layout and pixel layout (swizzles). 12bpp with Y plane followed by a 2x2 43 // interleaved VU plane. Each image contains two buffers -- Y plane and VU 44 // plane. Two planes can be non-contiguous in memory. The starting addresses 45 // of Y plane and VU plane are 4KB alignment. 46 // Suppose image dimension is (width, height). For both Y plane and VU plane: 47 // Row pitch = ((width+15)/16) * 16. 48 // Plane size = Row pitch * (((height+31)/32)*32) 49 PIXEL_FORMAT_MT21 = 15, 50 51 // The P* in the formats below designates the number of bits per pixel. I.e. 52 // P9 is 9-bits per pixel, P10 is 10-bits per pixel, etc. 53 PIXEL_FORMAT_YUV420P9 = 16, 54 PIXEL_FORMAT_YUV420P10 = 17, 55 PIXEL_FORMAT_YUV422P9 = 18, 56 PIXEL_FORMAT_YUV422P10 = 19, 57 PIXEL_FORMAT_YUV444P9 = 20, 58 PIXEL_FORMAT_YUV444P10 = 21, 59 60 PIXEL_FORMAT_YUV420P12 = 22, 61 PIXEL_FORMAT_YUV422P12 = 23, 62 PIXEL_FORMAT_YUV444P12 = 24, 63 64 /* PIXEL_FORMAT_Y8 = 25, Deprecated */ 65 PIXEL_FORMAT_Y16 = 26, // single 16bpp plane. 66 67 // Please update UMA histogram enumeration when adding new formats here. 68 PIXEL_FORMAT_MAX = 69 PIXEL_FORMAT_Y16, // Must always be equal to largest entry logged. 70 }; 71 72 } // namespace media 73 74 #endif // VIDEO_PIXEL_FORMAT_H_ 75
