V4L2_PIX_FMT_MPEG and S_FMT

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi all,

I am still in the process of porting a driver to v4l2 framework. This
device is capable of decoding MPEG-1 and MPEG-2 streams.
See http://dxr3.sourceforge.net/about.html for more details.
So I have programmed this:

static int vidioc_enum_fmt_vid_out(struct file *file, void *fh,
				struct v4l2_fmtdesc *fmt)
{
	if (fmt->index > 0)
		return -EINVAL;

	fmt->flags = V4L2_FMT_FLAG_COMPRESSED;
	fmt->pixelformat = V4L2_PIX_FMT_MPEG;
	strlcpy(fmt->description, "MPEG 1/2", sizeof(fmt->description));

	return 0;
}

There is nothing in struct v4l2_format which indicates MPEG1, MPEG2 or
MPEG4. As a result
of this, it is not possible to return -EINVAL if somebody wants to
decode/playback MPEG4 content.

Any ideas how to achieve it?

Thanks
--
Christian Gmeiner, MSc
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux