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authorAndy Walls <awalls@radix.net>2009-03-14 17:06:07 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:43:22 -0300
commit6273fda6e32e2cd9a478545d0cbc15ac497b1f4b (patch)
tree0b44d28fd3fb2092b332c8372b7325ca18f004ee
parent77ac0baf24d1a43498f7bdf6efa2ee6c4ed0ebaa (diff)
V4L/DVB (11042): v4l2-api: Add definitions for V4L2_MPEG_STREAM_VBI_FMT_IVTV payloads
This addition to the v4l2-api add definitions for the constants and data structures used for sliced VBI data insertion into MPEG streams triggered by V4L2_MPEG_STREAM_VBI_FMT_IVTV. This simply declares what the ivtv and cx18 drivers and MythTV have already been doing and provides a proper data structure definition to user space. Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--include/linux/ivtv.h10
-rw-r--r--include/linux/videodev2.h47
2 files changed, 52 insertions, 5 deletions
diff --git a/include/linux/ivtv.h b/include/linux/ivtv.h
index f2720280b9e..062d20f7432 100644
--- a/include/linux/ivtv.h
+++ b/include/linux/ivtv.h
@@ -60,10 +60,10 @@ struct ivtv_dma_frame {
#define IVTV_IOC_DMA_FRAME _IOW ('V', BASE_VIDIOC_PRIVATE+0, struct ivtv_dma_frame)
-/* These are the VBI types as they appear in the embedded VBI private packets. */
-#define IVTV_SLICED_TYPE_TELETEXT_B (1)
-#define IVTV_SLICED_TYPE_CAPTION_525 (4)
-#define IVTV_SLICED_TYPE_WSS_625 (5)
-#define IVTV_SLICED_TYPE_VPS (7)
+/* Deprecated defines: applications should use the defines from videodev2.h */
+#define IVTV_SLICED_TYPE_TELETEXT_B V4L2_MPEG_VBI_IVTV_TELETEXT_B
+#define IVTV_SLICED_TYPE_CAPTION_525 V4L2_MPEG_VBI_IVTV_CAPTION_525
+#define IVTV_SLICED_TYPE_WSS_625 V4L2_MPEG_VBI_IVTV_WSS_625
+#define IVTV_SLICED_TYPE_VPS V4L2_MPEG_VBI_IVTV_VPS
#endif /* _LINUX_IVTV_H */
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 78ba0755ffb..61f1a4921af 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -1348,6 +1348,53 @@ struct v4l2_sliced_vbi_data {
};
/*
+ * Sliced VBI data inserted into MPEG Streams
+ */
+
+/*
+ * V4L2_MPEG_STREAM_VBI_FMT_IVTV:
+ *
+ * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an
+ * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI
+ * data
+ *
+ * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header
+ * definitions are not included here. See the MPEG-2 specifications for details
+ * on these headers.
+ */
+
+/* Line type IDs */
+#define V4L2_MPEG_VBI_IVTV_TELETEXT_B (1)
+#define V4L2_MPEG_VBI_IVTV_CAPTION_525 (4)
+#define V4L2_MPEG_VBI_IVTV_WSS_625 (5)
+#define V4L2_MPEG_VBI_IVTV_VPS (7)
+
+struct v4l2_mpeg_vbi_itv0_line {
+ __u8 id; /* One of V4L2_MPEG_VBI_IVTV_* above */
+ __u8 data[42]; /* Sliced VBI data for the line */
+} __attribute__ ((packed));
+
+struct v4l2_mpeg_vbi_itv0 {
+ __le32 linemask[2]; /* Bitmasks of VBI service lines present */
+ struct v4l2_mpeg_vbi_itv0_line line[35];
+} __attribute__ ((packed));
+
+struct v4l2_mpeg_vbi_ITV0 {
+ struct v4l2_mpeg_vbi_itv0_line line[36];
+} __attribute__ ((packed));
+
+#define V4L2_MPEG_VBI_IVTV_MAGIC0 "itv0"
+#define V4L2_MPEG_VBI_IVTV_MAGIC1 "ITV0"
+
+struct v4l2_mpeg_vbi_fmt_ivtv {
+ __u8 magic[4];
+ union {
+ struct v4l2_mpeg_vbi_itv0 itv0;
+ struct v4l2_mpeg_vbi_ITV0 ITV0;
+ };
+} __attribute__ ((packed));
+
+/*
* A G G R E G A T E S T R U C T U R E S
*/