all: use designated initializers for AVOption.unit

Makes it robust against adding fields before it, which will be useful in
following commits.

Majority of the patch generated by the following Coccinelle script:

@@
typedef AVOption;
identifier arr_name;
initializer list il;
initializer list[8] il1;
expression tail;
@@
AVOption arr_name[] = { il, { il1,
- tail
+ .unit = tail
}, ...  };

with some manual changes, as the script:
* has trouble with options defined inside macros
* sometimes does not handle options under an #else branch
* sometimes swallows whitespace

1 files changed, 4 insertions, 4 deletions

diff --git a/libavfilter/af_deesser.c b/libavfilter/af_deesser.c
index 3c5ae8a8cd..16c10d21bc 100644
--- a/libavfilter/af_deesser.c
+++ b/libavfilter/af_deesser.c
@@ -58,10 +58,10 @@ static const AVOption deesser_options[] = {
     { "i", "set intensity",    OFFSET(intensity), AV_OPT_TYPE_DOUBLE, {.dbl=0.0}, 0.0, 1.0, A },
     { "m", "set max deessing", OFFSET(max),       AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0.0, 1.0, A },
     { "f", "set frequency",    OFFSET(frequency), AV_OPT_TYPE_DOUBLE, {.dbl=0.5}, 0.0, 1.0, A },
-    { "s", "set output mode",  OFFSET(mode),      AV_OPT_TYPE_INT,    {.i64=OUT_MODE}, 0, NB_MODES-1, A, "mode" },
-    {  "i", "input",           0,                 AV_OPT_TYPE_CONST,  {.i64=IN_MODE},  0, 0, A, "mode" },
-    {  "o", "output",          0,                 AV_OPT_TYPE_CONST,  {.i64=OUT_MODE}, 0, 0, A, "mode" },
-    {  "e", "ess",             0,                 AV_OPT_TYPE_CONST,  {.i64=ESS_MODE}, 0, 0, A, "mode" },
+    { "s", "set output mode",  OFFSET(mode),      AV_OPT_TYPE_INT,    {.i64=OUT_MODE}, 0, NB_MODES-1, A, .unit = "mode" },
+    {  "i", "input",           0,                 AV_OPT_TYPE_CONST,  {.i64=IN_MODE},  0, 0, A, .unit = "mode" },
+    {  "o", "output",          0,                 AV_OPT_TYPE_CONST,  {.i64=OUT_MODE}, 0, 0, A, .unit = "mode" },
+    {  "e", "ess",             0,                 AV_OPT_TYPE_CONST,  {.i64=ESS_MODE}, 0, 0, A, .unit = "mode" },
     { NULL }
 };