| Message ID | 1441887560-21768-1-git-send-email-sakari.ailus@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Hi Sakari, On Thursday 10 September 2015 15:19:20 Sakari Ailus wrote: > Passing format "help" to the -f option will list the supported formats and > exit. > > Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Applied, thank you. > --- > yavta.c | 19 +++++++++++++++++++ > 1 file changed, 19 insertions(+) > > diff --git a/yavta.c b/yavta.c > index 7d8ac8e..b627725 100644 > --- a/yavta.c > +++ b/yavta.c > @@ -215,6 +215,20 @@ static struct v4l2_format_info { > { "MPEG", V4L2_PIX_FMT_MPEG, 1 }, > }; > > +static void list_formats(void) > +{ > + unsigned int i; > + > + for (i = 0; i < ARRAY_SIZE(pixel_formats); i++) > + printf("%s (\"%c%c%c%c\", %u planes)\n", > + pixel_formats[i].name, > + pixel_formats[i].fourcc & 0xff, > + (pixel_formats[i].fourcc >> 8) & 0xff, > + (pixel_formats[i].fourcc >> 16) & 0xff, > + (pixel_formats[i].fourcc >> 24) & 0xff, > + pixel_formats[i].n_planes); > +} > + > static const struct v4l2_format_info *v4l2_format_by_fourcc(unsigned int > fourcc) { > unsigned int i; > @@ -1734,6 +1748,7 @@ static void usage(const char *argv0) > printf("-C, --check-overrun Verify dequeued frames for buffer > overrun\n"); printf("-d, --delay Delay (in ms) before requeuing > buffers\n"); printf("-f, --format format Set the video format\n"); > + printf(" use -f help to list the supported formats\n"); > printf("-F, --file[=name] Read/write frames from/to disk\n"); > printf("\tFor video capture devices, the first '#' character in the file > name is\n"); printf("\texpanded to the frame sequence number. The default > file name is\n"); @@ -1899,6 +1914,10 @@ int main(int argc, char *argv[]) > delay = atoi(optarg); > break; > case 'f': > + if (!strcmp("help", optarg)) { > + list_formats(); > + return 0; > + } > do_set_format = 1; > info = v4l2_format_by_name(optarg); > if (info == NULL) {
diff --git a/yavta.c b/yavta.c index 7d8ac8e..b627725 100644 --- a/yavta.c +++ b/yavta.c @@ -215,6 +215,20 @@ static struct v4l2_format_info { { "MPEG", V4L2_PIX_FMT_MPEG, 1 }, }; +static void list_formats(void) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(pixel_formats); i++) + printf("%s (\"%c%c%c%c\", %u planes)\n", + pixel_formats[i].name, + pixel_formats[i].fourcc & 0xff, + (pixel_formats[i].fourcc >> 8) & 0xff, + (pixel_formats[i].fourcc >> 16) & 0xff, + (pixel_formats[i].fourcc >> 24) & 0xff, + pixel_formats[i].n_planes); +} + static const struct v4l2_format_info *v4l2_format_by_fourcc(unsigned int fourcc) { unsigned int i; @@ -1734,6 +1748,7 @@ static void usage(const char *argv0) printf("-C, --check-overrun Verify dequeued frames for buffer overrun\n"); printf("-d, --delay Delay (in ms) before requeuing buffers\n"); printf("-f, --format format Set the video format\n"); + printf(" use -f help to list the supported formats\n"); printf("-F, --file[=name] Read/write frames from/to disk\n"); printf("\tFor video capture devices, the first '#' character in the file name is\n"); printf("\texpanded to the frame sequence number. The default file name is\n"); @@ -1899,6 +1914,10 @@ int main(int argc, char *argv[]) delay = atoi(optarg); break; case 'f': + if (!strcmp("help", optarg)) { + list_formats(); + return 0; + } do_set_format = 1; info = v4l2_format_by_name(optarg); if (info == NULL) {
Passing format "help" to the -f option will list the supported formats and exit. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> --- yavta.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)