/* * V4L2 format helper functions * * Copyright (C) 2017 Alexis Ballier <aballier@gentoo.org> * Copyright (C) 2017 Jorge Ramirez <jorge.ramirez-ortiz@linaro.org> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <linux/videodev2.h> #include <search.h> #include "v4l2_fmt.h" #define V4L2_FMT(x) V4L2_PIX_FMT_##x #define AV_CODEC(x) AV_CODEC_ID_##x #define AV_FMT(x) AV_PIX_FMT_##x static const struct fmt_conversion { enum AVPixelFormat avfmt; enum AVCodecID avcodec; uint32_t v4l2_fmt; } fmt_map[] = { { AV_FMT(RGB555LE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB555) }, { AV_FMT(RGB555BE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB555X) }, { AV_FMT(RGB565LE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB565) }, { AV_FMT(RGB565BE), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB565X) }, { AV_FMT(BGR24), AV_CODEC(RAWVIDEO), V4L2_FMT(BGR24) }, { AV_FMT(RGB24), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB24) }, { AV_FMT(BGR0), AV_CODEC(RAWVIDEO), V4L2_FMT(BGR32) }, { AV_FMT(0RGB), AV_CODEC(RAWVIDEO), V4L2_FMT(RGB32) }, { AV_FMT(GRAY8), AV_CODEC(RAWVIDEO), V4L2_FMT(GREY) }, { AV_FMT(YUV420P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV420) }, { AV_FMT(YUYV422), AV_CODEC(RAWVIDEO), V4L2_FMT(YUYV) }, { AV_FMT(UYVY422), AV_CODEC(RAWVIDEO), V4L2_FMT(UYVY) }, { AV_FMT(YUV422P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV422P) }, { AV_FMT(YUV411P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV411P) }, { AV_FMT(YUV410P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV410) }, { AV_FMT(YUV410P), AV_CODEC(RAWVIDEO), V4L2_FMT(YVU410) }, { AV_FMT(NV12), AV_CODEC(RAWVIDEO), V4L2_FMT(NV12) }, { AV_FMT(NONE), AV_CODEC(MJPEG), V4L2_FMT(MJPEG) }, { AV_FMT(NONE), AV_CODEC(MJPEG), V4L2_FMT(JPEG) }, #ifdef V4L2_PIX_FMT_SRGGB8 { AV_FMT(BAYER_BGGR8), AV_CODEC(RAWVIDEO), V4L2_FMT(SBGGR8) }, { AV_FMT(BAYER_GBRG8), AV_CODEC(RAWVIDEO), V4L2_FMT(SGBRG8) }, { AV_FMT(BAYER_GRBG8), AV_CODEC(RAWVIDEO), V4L2_FMT(SGRBG8) }, { AV_FMT(BAYER_RGGB8), AV_CODEC(RAWVIDEO), V4L2_FMT(SRGGB8) }, #endif #ifdef V4L2_PIX_FMT_Y16 { AV_FMT(GRAY16LE), AV_CODEC(RAWVIDEO), V4L2_FMT(Y16) }, #endif #ifdef V4L2_PIX_FMT_NV12M { AV_FMT(NV12), AV_CODEC(RAWVIDEO), V4L2_FMT(NV12M) }, #endif #ifdef V4L2_PIX_FMT_NV21M { AV_FMT(NV21), AV_CODEC(RAWVIDEO), V4L2_FMT(NV21M) }, #endif #ifdef V4L2_PIX_FMT_YUV420M { AV_FMT(YUV420P), AV_CODEC(RAWVIDEO), V4L2_FMT(YUV420M) }, #endif #ifdef V4L2_PIX_FMT_NV16M { AV_FMT(NV16), AV_CODEC(RAWVIDEO), V4L2_FMT(NV16M) }, #endif #ifdef V4L2_PIX_FMT_H263 { AV_FMT(NONE), AV_CODEC(H263), V4L2_FMT(H263) }, #endif #ifdef V4L2_PIX_FMT_H264 { AV_FMT(NONE), AV_CODEC(H264), V4L2_FMT(H264) }, #endif #ifdef V4L2_PIX_FMT_MPEG4 { AV_FMT(NONE), AV_CODEC(MPEG4), V4L2_FMT(MPEG4) }, #endif #ifdef V4L2_PIX_FMT_CPIA1 { AV_FMT(NONE), AV_CODEC(CPIA), V4L2_FMT(CPIA1) }, #endif #ifdef V4L2_PIX_FMT_DV { AV_FMT(NONE), AV_CODEC(DVVIDEO), V4L2_FMT(DV) }, #endif #ifdef V4L2_PIX_FMT_MPEG1 { AV_FMT(NONE), AV_CODEC(MPEG1VIDEO), V4L2_FMT(MPEG1) }, #endif #ifdef V4L2_PIX_FMT_MPEG2 { AV_FMT(NONE), AV_CODEC(MPEG2VIDEO), V4L2_FMT(MPEG2) }, #endif #ifdef V4L2_PIX_FMT_VP8 { AV_FMT(NONE), AV_CODEC(VP8), V4L2_FMT(VP8) }, #endif #ifdef V4L2_PIX_FMT_VP9 { AV_FMT(NONE), AV_CODEC(VP9), V4L2_FMT(VP9) }, #endif #ifdef V4L2_PIX_FMT_HEVC { AV_FMT(NONE), AV_CODEC(HEVC), V4L2_FMT(HEVC) }, #endif #ifdef V4L2_PIX_FMT_VC1_ANNEX_G { AV_FMT(NONE), AV_CODEC(VC1), V4L2_FMT(VC1_ANNEX_G) }, #endif }; uint32_t ff_v4l2_format_avcodec_to_v4l2(enum AVCodecID avcodec) { int i; for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) { if (fmt_map[i].avcodec == avcodec) return fmt_map[i].v4l2_fmt; } return 0; } uint32_t ff_v4l2_format_avfmt_to_v4l2(enum AVPixelFormat avfmt) { int i; for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) { if (fmt_map[i].avfmt == avfmt) return fmt_map[i].v4l2_fmt; } return 0; } enum AVPixelFormat ff_v4l2_format_v4l2_to_avfmt(uint32_t v4l2_fmt, enum AVCodecID avcodec) { int i; for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) { if (fmt_map[i].avcodec == avcodec && fmt_map[i].v4l2_fmt == v4l2_fmt) return fmt_map[i].avfmt; } return AV_PIX_FMT_NONE; }