On 06/16/2015 11:30 AM, Prashant Laddha wrote:
> To support the timings calculations for reduced blanking version 2
> (RB v2), extended the command line options to include flag indicating
> whether to use RB V2 or not. Updated the command usage for the same.
>
> Cc: Hans Verkuil <hans.verk...@cisco.com>
> Signed-off-by: Prashant Laddha <prlad...@cisco.com>
> ---
> utils/v4l2-ctl/v4l2-ctl-stds.cpp | 13 +++++++++++--
> 1 file changed, 11 insertions(+), 2 deletions(-)
>
> diff --git a/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> index c0e919b..9734c80 100644
> --- a/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> +++ b/utils/v4l2-ctl/v4l2-ctl-stds.cpp
> @@ -41,7 +41,10 @@ void stds_usage(void)
> " index=<index>: use the index as provided
> by --list-dv-timings\n"
> " or specify timings using cvt/gtf options
> as follows:\n"
> "
> cvt/gtf,width=<width>,height=<height>,fps=<frames per sec>\n"
> - " interlaced=<0/1>,reduced-blanking=<0/1>\n"
> + "
> interlaced=<0/1>,reduced-blanking=<0/1>,use-rb-v2=<0/1>\n"
> + " use-rb-v2 indicates whether to use reduced
> blanking version 2\n"
> + " or not. This flag is relevant only for cvt
> timings and has\n"
> + " effect only if reduced-blanking=1\n"
Why not just allow a value of 2 for the reduced-blanking argument instead
of introducing a new argument? For gtf 1 and 2 mean the same thing, for cvt 1
will use the standard RB and 2 RBv2.
Seems simpler to me. It also means that calc_cvt_modeline doesn't need a new
argument, just that bool reduced_blanking becomes int reduced_blanking.
Other than this it looks good to me.
Regards,
Hans
> " or give a fully specified timings:\n"
> "
> width=<width>,height=<height>,interlaced=<0/1>,\n"
> " polarities=<polarities
> mask>,pixelclock=<pixelclock Hz>,\n"
> @@ -148,6 +151,7 @@ enum timing_opts {
> GTF,
> FPS,
> REDUCED_BLANK,
> + USE_RB_V2,
> };
>
> static int parse_timing_subopt(char **subopt_str, int *value)
> @@ -175,6 +179,7 @@ static int parse_timing_subopt(char **subopt_str, int
> *value)
> "gtf",
> "fps",
> "reduced-blanking",
> + "use-rb-v2",
> NULL
> };
>
> @@ -205,6 +210,7 @@ static void get_cvt_gtf_timings(char *subopt, int
> standard,
> int fps = 0;
> int r_blank = 0;
> int interlaced = 0;
> + int use_rb_v2 = 0;
>
> bool timings_valid = false;
>
> @@ -231,6 +237,8 @@ static void get_cvt_gtf_timings(char *subopt, int
> standard,
> case INTERLACED:
> interlaced = opt_val;
> break;
> + case USE_RB_V2:
> + use_rb_v2 = opt_val;
> default:
> break;
> }
> @@ -240,7 +248,8 @@ static void get_cvt_gtf_timings(char *subopt, int
> standard,
> timings_valid = calc_cvt_modeline(width, height, fps,
> r_blank == 1 ? true : false,
> interlaced == 1 ? true : false,
> - false, bt);
> + use_rb_v2 == 1 ? true : false,
> + bt);
> } else {
> timings_valid = calc_gtf_modeline(width, height, fps,
> r_blank == 1 ? true : false,
>
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