git.openwrt.org Git - openwrt/staging/ldir.git/blob

   1 From 8c85b83a8dc6c62fa20b87f2fe51b80a3bafc169 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Thu, 25 Mar 2021 18:34:50 +0000
   4 Subject: [PATCH] staging/bcm2835-camera: Add support for H264 levels
   5  4.1 and 4.2
   6
   7 Whilst the hardware can't achieve the limits of level 4.2 under
   8 all situations, it can exceed level 4.0.
   9
  10 Allow selection of levels 4.1 and 4.2.
  11
  12 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  13 ---
  14  .../vc04_services/bcm2835-camera/controls.c   | 19 +++++++++++++++++--
  15  1 file changed, 17 insertions(+), 2 deletions(-)
  16
  17 --- a/drivers/staging/vc04_services/bcm2835-camera/controls.c
  18 +++ b/drivers/staging/vc04_services/bcm2835-camera/controls.c
  19 @@ -709,6 +709,8 @@ static int ctrl_set_video_encode_profile
  20                 case V4L2_MPEG_VIDEO_H264_LEVEL_3_1:
  21                 case V4L2_MPEG_VIDEO_H264_LEVEL_3_2:
  22                 case V4L2_MPEG_VIDEO_H264_LEVEL_4_0:
  23 +               case V4L2_MPEG_VIDEO_H264_LEVEL_4_1:
  24 +               case V4L2_MPEG_VIDEO_H264_LEVEL_4_2:
  25                         dev->capture.enc_level = ctrl->val;
  26                         break;
  27                 default:
  28 @@ -774,6 +776,17 @@ static int ctrl_set_video_encode_profile
  29                 case V4L2_MPEG_VIDEO_H264_LEVEL_4_0:
  30                         param.level = MMAL_VIDEO_LEVEL_H264_4;
  31                         break;
  32 +               /*
  33 +                * Note that the hardware spec is level 4.0. Achieving levels
  34 +                * above that depend on exactly the resolution and frame rate
  35 +                * being requested.
  36 +                */
  37 +               case V4L2_MPEG_VIDEO_H264_LEVEL_4_1:
  38 +                       param.level = MMAL_VIDEO_LEVEL_H264_41;
  39 +                       break;
  40 +               case V4L2_MPEG_VIDEO_H264_LEVEL_4_2:
  41 +                       param.level = MMAL_VIDEO_LEVEL_H264_42;
  42 +                       break;
  43                 default:
  44                         /* Should never get here */
  45                         break;
  46 @@ -1224,8 +1237,10 @@ static const struct bm2835_mmal_v4l2_ctr
  47                          BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_0) |
  48                          BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_1) |
  49                          BIT(V4L2_MPEG_VIDEO_H264_LEVEL_3_2) |
  50 -                        BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_0)),
  51 -               .max = V4L2_MPEG_VIDEO_H264_LEVEL_4_0,
  52 +                        BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_0) |
  53 +                        BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_1) |
  54 +                        BIT(V4L2_MPEG_VIDEO_H264_LEVEL_4_2)),
  55 +               .max = V4L2_MPEG_VIDEO_H264_LEVEL_4_2,
  56                 .def = V4L2_MPEG_VIDEO_H264_LEVEL_4_0,
  57                 .step = 1,
  58                 .imenu = NULL,