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/libavformat/mov.c b/libavformat/mov.c
index 42b0135987..92304565df 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -9602,13 +9602,13 @@ static const AVOption mov_options[] = {
         "use mfra for fragment timestamps",
         OFFSET(use_mfra_for), AV_OPT_TYPE_INT, {.i64 = FF_MOV_FLAG_MFRA_AUTO},
         -1, FF_MOV_FLAG_MFRA_PTS, FLAGS,
-        "use_mfra_for"},
+        .unit = "use_mfra_for"},
     {"auto", "auto", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_AUTO}, 0, 0,
-        FLAGS, "use_mfra_for" },
+        FLAGS, .unit = "use_mfra_for" },
     {"dts", "dts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_DTS}, 0, 0,
-        FLAGS, "use_mfra_for" },
+        FLAGS, .unit = "use_mfra_for" },
     {"pts", "pts", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_MFRA_PTS}, 0, 0,
-        FLAGS, "use_mfra_for" },
+        FLAGS, .unit = "use_mfra_for" },
     {"use_tfdt", "use tfdt for fragment timestamps", OFFSET(use_tfdt), AV_OPT_TYPE_BOOL, {.i64 = 1},
         0, 1, FLAGS},
     { "export_all", "Export unrecognized metadata entries", OFFSET(export_all),