V4L/DVB (5271): Add VIDIOC_TRY_ENCODER_CMD and VIDIOC_ENCODER_CMD ioctls.
Add support for starting, stopping, pausing and resuming an MPEG (or similar
compressed stream) encoder.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h
index 42cfdd2..8548758 100644
--- a/include/linux/videodev2.h
+++ b/include/linux/videodev2.h
@@ -1193,7 +1193,7 @@
};
/*
- * M P E G I N D E X
+ * M P E G S E R V I C E S
*
* NOTE: EXPERIMENTAL API
*/
@@ -1218,6 +1218,26 @@
__u32 reserved[4];
struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
};
+
+
+#define V4L2_ENC_CMD_START (0)
+#define V4L2_ENC_CMD_STOP (1)
+#define V4L2_ENC_CMD_PAUSE (2)
+#define V4L2_ENC_CMD_RESUME (3)
+
+/* Flags for V4L2_ENC_CMD_STOP */
+#define V4L2_ENC_CMD_STOP_AT_GOP_END (1 << 0)
+
+struct v4l2_encoder_cmd {
+ __u32 cmd;
+ __u32 flags;
+ union {
+ struct {
+ __u32 data[8];
+ } raw;
+ };
+};
+
#endif
@@ -1415,6 +1435,8 @@
#define VIDIOC_ENUM_FRAMESIZES _IOWR ('V', 74, struct v4l2_frmsizeenum)
#define VIDIOC_ENUM_FRAMEINTERVALS _IOWR ('V', 75, struct v4l2_frmivalenum)
#define VIDIOC_G_ENC_INDEX _IOR ('V', 76, struct v4l2_enc_idx)
+#define VIDIOC_ENCODER_CMD _IOWR ('V', 77, struct v4l2_encoder_cmd)
+#define VIDIOC_TRY_ENCODER_CMD _IOWR ('V', 78, struct v4l2_encoder_cmd)
#endif
/* only implemented if CONFIG_VIDEO_ADV_DEBUG is defined */
#define VIDIOC_DBG_S_REGISTER _IOW ('d', 100, struct v4l2_register)