Re: [git:xawtv3/master] xawtv: reenable its usage with webcam's

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Em 30-06-2011 07:55, Hans de Goede escreveu:
> Hi,
> 
> On 06/29/2011 09:27 PM, Mauro Carvalho Chehab wrote:
> 
> <snip>
> 
>>
>> Anyway, it is fixed. I also made scantv to force for a TV device at auto mode, as it
>> doesn't sense to scan for TV channels on devices without tuner.
> 
> Thanks for fixing this, 2 remarks wrt the auto patch for
> scantv:
> 
> 1) This bit should be #ifdef __linux__ since we only support
> auto* on linux because of the sysfs dep:
> 
> @@ -149,6 +149,9 @@ main(int argc, char **argv)
> 
>      /* parse options */
>      ng_init();
> +    /* Autodetect devices */
> +    ng_dev.video = "auto_tv";
> +
>      for (;;) {
>      if (-1 == (c = getopt(argc, argv, "hsadi:n:f:o:c:C:D:")))
>          break;
> 

True, but instead of adding it on every place, the better would be to replace auto/auto_tv
at the library, instead of adding the test at each place we change to auto mode.

BTW, does the bsd driver actually work? I remember they asked us to release the videodev2.h
file as dual licensing, in order to allow BSD to use V4L2 API also, a few years ago. If they
actually changed, all those bsd compat stuff is wrong.

> 2) The added return NULL in case no device can be found lacks
> printing an error message:
> 
> @@ -568,6 +569,8 @@ static void *ng_vid_open_auto(struct ng_vid_driver *drv, char *devpath)
> 
>      /* Step 2: try grabber devices and webcams */
>      if (!handle) {
> +    if (!allow_grabber)
> +        return NULL;
>      device = NULL;
>      while (1) {
>          device = get_associated_device(md, device, MEDIA_V4L_VIDEO, NULL, NONE);
> 
> I propose changing the return NULL, with a goto to the error print further down.

Yes, that sounds better to me.
> 
>>  From my side, I don't intend to touch on xawtv any time soon. So, maybe we can wait
>> for a couple days and release version 1.101.
> 
> Assuming the 2 things mentioned above get fixed that sounds like a good plan to me.
> 
> Regards,
> 
> Hans

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