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V4L/DVB (5270): Add VIDIOC_G_ENC_INDEX ioctl 

The VIDIOC_G_ENC_INDEX ioctl can obtain the MPEG index from an MPEG
encoder.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Hans Verkuil 2007-02-18 14:05:02 -03:00 committed by Mauro Carvalho Chehab
parent 1d1370a48c
commit db6eb5b334
4 changed files with 50 additions and 3 deletions
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9
drivers/media/video/v4l2-common.c
View File

@ -366,13 +366,16 @@ static const char *v4l2_ioctls[] = {
[_IOC_NR(VIDIOC_ENUMAUDOUT)] = "VIDIOC_ENUMAUDOUT",
[_IOC_NR(VIDIOC_G_PRIORITY)] = "VIDIOC_G_PRIORITY",
[_IOC_NR(VIDIOC_S_PRIORITY)] = "VIDIOC_S_PRIORITY",
#if 1
[_IOC_NR(VIDIOC_G_SLICED_VBI_CAP)] = "VIDIOC_G_SLICED_VBI_CAP",
#endif
[_IOC_NR(VIDIOC_LOG_STATUS)] = "VIDIOC_LOG_STATUS",
[_IOC_NR(VIDIOC_G_EXT_CTRLS)] = "VIDIOC_G_EXT_CTRLS",
[_IOC_NR(VIDIOC_S_EXT_CTRLS)] = "VIDIOC_S_EXT_CTRLS",
[_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS"
[_IOC_NR(VIDIOC_TRY_EXT_CTRLS)] = "VIDIOC_TRY_EXT_CTRLS",
#if 1
[_IOC_NR(VIDIOC_ENUM_FRAMESIZES)] = "VIDIOC_ENUM_FRAMESIZES",
[_IOC_NR(VIDIOC_ENUM_FRAMEINTERVALS)] = "VIDIOC_ENUM_FRAMEINTERVALS",
[_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX"
#endif
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)

12
drivers/media/video/videodev.c
View File

@ -1342,6 +1342,18 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
ret=vfd->vidioc_s_jpegcomp(file, fh, p);
break;
}
case VIDIOC_G_ENC_INDEX:
{
struct v4l2_enc_idx *p=arg;
if (!vfd->vidioc_g_enc_index)
break;
ret=vfd->vidioc_g_enc_index(file, fh, p);
if (!ret)
dbgarg (cmd, "entries=%d, entries_cap=%d\n",
p->entries,p->entries_cap);
break;
}
case VIDIOC_G_PARM:
{
struct v4l2_streamparm *p=arg;

30
include/linux/videodev2.h
View File

@ -1192,6 +1192,35 @@ struct v4l2_audioout
__u32 reserved[2];
};
/*
* M P E G I N D E X
*
* NOTE: EXPERIMENTAL API
*/
#if 1
#define V4L2_ENC_IDX_FRAME_I (0)
#define V4L2_ENC_IDX_FRAME_P (1)
#define V4L2_ENC_IDX_FRAME_B (2)
#define V4L2_ENC_IDX_FRAME_MASK (0xf)
struct v4l2_enc_idx_entry {
__u64 offset;
__u64 pts;
__u32 length;
__u32 flags;
__u32 reserved[2];
};
#define V4L2_ENC_IDX_ENTRIES (64)
struct v4l2_enc_idx {
__u32 entries;
__u32 entries_cap;
__u32 reserved[4];
struct v4l2_enc_idx_entry entry[V4L2_ENC_IDX_ENTRIES];
};
#endif
/*
* D A T A S E R V I C E S ( V B I )
*
@ -1385,6 +1414,7 @@ struct v4l2_register {
#if 1
#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)
#endif
/* only implemented if CONFIG_VIDEO_ADV_DEBUG is defined */
#define VIDIOC_DBG_S_REGISTER _IOW ('d', 100, struct v4l2_register)

2
include/media/v4l2-dev.h
View File

@ -271,6 +271,8 @@ struct video_device
struct v4l2_jpegcompression *a);
int (*vidioc_s_jpegcomp) (struct file *file, void *fh,
struct v4l2_jpegcompression *a);
int (*vidioc_g_enc_index) (struct file *file, void *fh,
struct v4l2_enc_idx *a);
/* Stream type-dependent parameter ioctls */
int (*vidioc_g_parm) (struct file *file, void *fh,