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V4L/DVB (5271): Add VIDIOC_TRY_ENCODER_CMD and VIDIOC_ENCODER_CMD ioctls.

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Add support for starting, stopping, pausing and resuming an MPEG (or similar
compressed stream) encoder.

Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
This commit is contained in:
Hans Verkuil 2007-02-18 14:56:22 -03:00 • committed by Mauro Carvalho Chehab
commit ada6ecd2bf
4 changed files with 54 additions and 2 deletions
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4
drivers/media/video/v4l2-common.c
View file

@ -374,7 +374,9 @@ static const char *v4l2_ioctls[] = {
#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"
[_IOC_NR(VIDIOC_G_ENC_INDEX)] = "VIDIOC_G_ENC_INDEX",
[_IOC_NR(VIDIOC_ENCODER_CMD)] = "VIDIOC_ENCODER_CMD",
[_IOC_NR(VIDIOC_TRY_ENCODER_CMD)] = "VIDIOC_TRY_ENCODER_CMD"
#endif
};
#define V4L2_IOCTLS ARRAY_SIZE(v4l2_ioctls)

24
drivers/media/video/videodev.c
View file

@ -1354,6 +1354,30 @@ static int __video_do_ioctl(struct inode *inode, struct file *file,
p->entries,p->entries_cap);
break;
}
case VIDIOC_ENCODER_CMD:
{
struct v4l2_encoder_cmd *p=arg;
if (!vfd->vidioc_encoder_cmd)
break;
ret=vfd->vidioc_encoder_cmd(file, fh, p);
if (!ret)
dbgarg (cmd, "cmd=%d, flags=%d\n",
p->cmd,p->flags);
break;
}
case VIDIOC_TRY_ENCODER_CMD:
{
struct v4l2_encoder_cmd *p=arg;
if (!vfd->vidioc_try_encoder_cmd)
break;
ret=vfd->vidioc_try_encoder_cmd(file, fh, p);
if (!ret)
dbgarg (cmd, "cmd=%d, flags=%d\n",
p->cmd,p->flags);
break;
}
case VIDIOC_G_PARM:
{
struct v4l2_streamparm *p=arg;