LCOV - code coverage report
Current view: top level - libavcodec - v4l2_fmt.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 16 0.0 %
Date: 2017-12-18 06:23:41 Functions: 0 3 0.0 %

          Line data    Source code
       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             : 
      32             : static 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             : 
     112           0 : uint32_t ff_v4l2_format_avcodec_to_v4l2(enum AVCodecID avcodec)
     113             : {
     114             :     int i;
     115           0 :     for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) {
     116           0 :         if (fmt_map[i].avcodec == avcodec)
     117           0 :             return fmt_map[i].v4l2_fmt;
     118             :     }
     119           0 :     return 0;
     120             : }
     121             : 
     122           0 : uint32_t ff_v4l2_format_avfmt_to_v4l2(enum AVPixelFormat avfmt)
     123             : {
     124             :     int i;
     125           0 :     for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) {
     126           0 :         if (fmt_map[i].avfmt == avfmt)
     127           0 :             return fmt_map[i].v4l2_fmt;
     128             :     }
     129           0 :     return 0;
     130             : }
     131             : 
     132           0 : enum AVPixelFormat ff_v4l2_format_v4l2_to_avfmt(uint32_t v4l2_fmt, enum AVCodecID avcodec)
     133             : {
     134             :     int i;
     135           0 :     for (i = 0; i < FF_ARRAY_ELEMS(fmt_map); i++) {
     136           0 :         if (fmt_map[i].avcodec  == avcodec &&
     137           0 :             fmt_map[i].v4l2_fmt == v4l2_fmt)
     138           0 :             return fmt_map[i].avfmt;
     139             :     }
     140           0 :     return AV_PIX_FMT_NONE;
     141             : }

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