1/* 2 * V4L2 format helper functions 3 * 4 * Copyright (C) 2017 Alexis Ballier <aballier@gentoo.org> 5 * Copyright (C) 2017 Jorge Ramirez <jorge.ramirez-ortiz@linaro.org> 6 * 7 * This file is part of FFmpeg. 8 * 9 * FFmpeg is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU Lesser General Public 11 * License as published by the Free Software Foundation; either 12 * version 2.1 of the License, or (at your option) any later version. 13 * 14 * FFmpeg is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 17 * Lesser General Public License for more details. 18 * 19 * You should have received a copy of the GNU Lesser General Public 20 * License along with FFmpeg; if not, write to the Free Software 21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 22 */ 23 24#include <linux/videodev2.h> 25#include <search.h> 26#include "v4l2_fmt.h" 27 28#define V4L2_FMT(x) V4L2_PIX_FMT_##x 29#define AV_CODEC(x) AV_CODEC_ID_##x 30#define AV_FMT(x) AV_PIX_FMT_##x 31 32static const struct fmt_conversion { 33 enum AVPixelFormat avfmt; 34 enum AVCodecID avcodec; 35 uint32_t v4l2_fmt; 36} fmt_map[] = { 37 { AV_FMT(RGB555LE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB555) }, 38 { AV_FMT(RGB555BE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB555X) }, 39 { AV_FMT(RGB565LE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB565) }, 40 { AV_FMT(RGB565BE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB565X) }, 41 { AV_FMT(BGR24), AV_CODEC(RAWVIDEO), V4L2_FMT(BGR24) }, 42 { AV_FMT(RGB24), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB24) }, 43 { AV_FMT(BGR0), AV_CODEC(RAWVIDEO), V4L2_FMT(BGR32) }, 44 { AV_FMT(0RGB), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB32) }, 45 { AV_FMT(GRAY8), AV_CODEC(RAWVIDEO), V4L2_FMT(GREY) }, 46 { AV_FMT(YUV420P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV420) }, 47 { AV_FMT(YUYV422), AV_CODEC(RAWVIDEO), V4L2_FMT(YUYV) }, 48 { AV_FMT(UYVY422), AV_CODEC(RAWVIDEO), V4L2_FMT(UYVY) }, 49 { AV_FMT(YUV422P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV422P) }, 50 { AV_FMT(YUV411P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV411P) }, 51 { AV_FMT(YUV410P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV410) }, 52 { AV_FMT(YUV410P), AV_CODEC(RAWVIDEO), V4L2_FMT(YVU410) }, 53 { AV_FMT(NV12), AV_CODEC(RAWVIDEO), V4L2_FMT(NV12) }, 54 { AV_FMT(NONE), AV_CODEC(MJPEG), V4L2_FMT(MJPEG) }, 55 { AV_FMT(NONE), AV_CODEC(MJPEG), V4L2_FMT(JPEG) }, 56#ifdef V4L2_PIX_FMT_SRGGB8 57 { AV_FMT(BAYER_BGGR8), AV_CODEC(RAWVIDEO), V4L2_FMT(SBGGR8) }, 58 { AV_FMT(BAYER_GBRG8), AV_CODEC(RAWVIDEO), V4L2_FMT(SGBRG8) }, 59 { AV_FMT(BAYER_GRBG8), AV_CODEC(RAWVIDEO), V4L2_FMT(SGRBG8) }, 60 { AV_FMT(BAYER_RGGB8), AV_CODEC(RAWVIDEO), V4L2_FMT(SRGGB8) }, 61#endif 62#ifdef V4L2_PIX_FMT_Y16 63 { AV_FMT(GRAY16LE), AV_CODEC(RAWVIDEO), V4L2_FMT(Y16) }, 64#endif 65#ifdef V4L2_PIX_FMT_NV12M 66 { AV_FMT(NV12), AV_CODEC(RAWVIDEO), V4L2_FMT(NV12M) }, 67#endif 68#ifdef V4L2_PIX_FMT_NV21M 69 { AV_FMT(NV21), AV_CODEC(RAWVIDEO), V4L2_FMT(NV21M) }, 70#endif 71#ifdef V4L2_PIX_FMT_YUV420M 72 { AV_FMT(YUV420P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV420M) }, 73#endif 74#ifdef V4L2_PIX_FMT_NV16M 75 { AV_FMT(NV16), AV_CODEC(RAWVIDEO), V4L2_FMT(NV16M) }, 76#endif 77#ifdef V4L2_PIX_FMT_H263 78 { AV_FMT(NONE), AV_CODEC(H263), V4L2_FMT(H263) }, 79#endif 80#ifdef V4L2_PIX_FMT_H264 81 { AV_FMT(NONE), AV_CODEC(H264), V4L2_FMT(H264) }, 82#endif 83#ifdef V4L2_PIX_FMT_MPEG4 84 { AV_FMT(NONE), AV_CODEC(MPEG4), V4L2_FMT(MPEG4) }, 85#endif 86#ifdef V4L2_PIX_FMT_CPIA1 87 { AV_FMT(NONE), AV_CODEC(CPIA), V4L2_FMT(CPIA1) }, 88#endif 89#ifdef V4L2_PIX_FMT_DV 90 { AV_FMT(NONE), AV_CODEC(DVVIDEO), V4L2_FMT(DV) }, 91#endif 92#ifdef V4L2_PIX_FMT_MPEG1 93 { AV_FMT(NONE), AV_CODEC(MPEG1VIDEO), V4L2_FMT(MPEG1) }, 94#endif 95#ifdef V4L2_PIX_FMT_MPEG2 96 { AV_FMT(NONE), AV_CODEC(MPEG2VIDEO), V4L2_FMT(MPEG2) }, 97#endif 98#ifdef V4L2_PIX_FMT_VP8 99 { AV_FMT(NONE), AV_CODEC(VP8), V4L2_FMT(VP8) }, 100#endif 101#ifdef V4L2_PIX_FMT_VP9 102 { AV_FMT(NONE), AV_CODEC(VP9), V4L2_FMT(VP9) }, 103#endif 104#ifdef V4L2_PIX_FMT_HEVC 105 { AV_FMT(NONE), AV_CODEC(HEVC), V4L2_FMT(HEVC) }, 106#endif 107#ifdef V4L2_PIX_FMT_VC1_ANNEX_G 108 { AV_FMT(NONE), AV_CODEC(VC1), V4L2_FMT(VC1_ANNEX_G) }, 109#endif 110}; 111 112uint32_t ff_v4l2_format_avcodec_to_v4l2(enum AVCodecID avcodec) 113{ 114 int i; 115 for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) { 116 if (fmt_map[i].avcodec == avcodec) 117 return fmt_map[i].v4l2_fmt; 118 } 119 return 0; 120} 121 122uint32_t ff_v4l2_format_avfmt_to_v4l2(enum AVPixelFormat avfmt) 123{ 124 int i; 125 for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) { 126 if (fmt_map[i].avfmt == avfmt) 127 return fmt_map[i].v4l2_fmt; 128 } 129 return 0; 130} 131 132enum AVPixelFormat ff_v4l2_format_v4l2_to_avfmt(uint32_t v4l2_fmt, enum AVCodecID avcodec) 133{ 134 int i; 135 for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) { 136 if (fmt_map[i].avcodec == avcodec && 137 fmt_map[i].v4l2_fmt == v4l2_fmt) 138 return fmt_map[i].avfmt; 139 } 140 return AV_PIX_FMT_NONE; 141} 142