V4L/DVB (4223): Add V4L2_CID_MPEG_STREAM_VBI_FMT control

V4L2_CID_MPEG_STREAM_VBI_FMT controls if and how VBI data is embedded in
an MPEG stream. Currently only one format is supported: the format designed
for the ivtv driver. This should be extended with new standard formats
(such as defined for DVB) in the future.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c
index 14e523471354..f4b3d64ebf73 100644
--- a/drivers/media/video/v4l2-common.c
+++ b/drivers/media/video/v4l2-common.c
@@ -1101,6 +1101,11 @@ const char **v4l2_ctrl_get_menu(u32 id)
                 "MPEG-2 SVCD-compatible Stream",
                 NULL
         };
+        static const char *mpeg_stream_vbi_fmt[] = {
+                "No VBI",
+                "VBI in private packets, IVTV format",
+                NULL
+        };
 
         switch (id) {
                 case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ:
@@ -1129,6 +1134,8 @@ const char **v4l2_ctrl_get_menu(u32 id)
                         return mpeg_video_bitrate_mode;
                 case V4L2_CID_MPEG_STREAM_TYPE:
                         return mpeg_stream_type;
+                case V4L2_CID_MPEG_STREAM_VBI_FMT:
+                        return mpeg_stream_vbi_fmt;
                 default:
                         return NULL;
         }
@@ -1182,6 +1189,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste
         case V4L2_CID_MPEG_STREAM_PID_PCR:      name = "Stream PCR Program ID"; break;
         case V4L2_CID_MPEG_STREAM_PES_ID_AUDIO: name = "Stream PES Audio ID"; break;
         case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO: name = "Stream PES Video ID"; break;
+        case V4L2_CID_MPEG_STREAM_VBI_FMT:      name = "Stream VBI Format"; break;
 
         default:
                 return -EINVAL;
@@ -1208,6 +1216,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste
         case V4L2_CID_MPEG_VIDEO_ASPECT:
         case V4L2_CID_MPEG_VIDEO_BITRATE_MODE:
         case V4L2_CID_MPEG_STREAM_TYPE:
+        case V4L2_CID_MPEG_STREAM_VBI_FMT:
                 qctrl->type = V4L2_CTRL_TYPE_MENU;
                 step = 1;
                 break;
@@ -1367,6 +1376,11 @@ int v4l2_ctrl_query_fill_std(struct v4l2_queryctrl *qctrl)
                 return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
         case V4L2_CID_MPEG_STREAM_PES_ID_VIDEO:
                 return v4l2_ctrl_query_fill(qctrl, 0, 255, 1, 0);
+        case V4L2_CID_MPEG_STREAM_VBI_FMT:
+                return v4l2_ctrl_query_fill(qctrl,
+                                V4L2_MPEG_STREAM_VBI_FMT_NONE,
+                                V4L2_MPEG_STREAM_VBI_FMT_IVTV, 1,
+                                V4L2_MPEG_STREAM_VBI_FMT_NONE);
         default:
                 return -EINVAL;
         }