fftools/ffmpeg_opt: add missing codec type to some options

Reviewed-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: James Almer <jamrial@gmail.com>

fftools/ffmpeg_opt.c

@@ -1477,9 +1477,6 @@ const OptionDef options[] = {
     { "bitexact",               OPT_TYPE_BOOL, OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT | OPT_INPUT,
         { .off = OFFSET(bitexact) },
         "bitexact mode" },
-    { "apad",                   OPT_TYPE_STRING, OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
-        { .off = OFFSET(apad) },
-        "audio pad", "" },
     { "dts_delta_threshold",    OPT_TYPE_FLOAT, OPT_EXPERT,
         { &dts_delta_threshold },
         "timestamp discontinuity delta threshold", "threshold" },
@@ -1708,10 +1705,10 @@ const OptionDef options[] = {
     { "hwaccels",                   OPT_TYPE_FUNC,   OPT_EXIT | OPT_EXPERT,
         { .func_arg = show_hwaccels },
         "show available HW acceleration methods" },
-    { "autorotate",                 OPT_TYPE_BOOL,   OPT_PERSTREAM | OPT_EXPERT | OPT_INPUT,
+    { "autorotate",                 OPT_TYPE_BOOL,   OPT_VIDEO | OPT_PERSTREAM | OPT_EXPERT | OPT_INPUT,
         { .off = OFFSET(autorotate) },
         "automatically insert correct rotate filters" },
-    { "autoscale",                  OPT_TYPE_BOOL,   OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
+    { "autoscale",                  OPT_TYPE_BOOL,   OPT_VIDEO | OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
         { .off = OFFSET(autoscale) },
         "automatically insert a scale filter at the end of the filter graph" },
     { "fix_sub_duration_heartbeat", OPT_TYPE_BOOL,   OPT_VIDEO | OPT_EXPERT | OPT_PERSTREAM | OPT_OUTPUT,
@@ -1744,6 +1741,9 @@ const OptionDef options[] = {
     { "ab",               OPT_TYPE_FUNC,    OPT_AUDIO | OPT_FUNC_ARG | OPT_PERFILE | OPT_OUTPUT,
         { .func_arg = opt_bitrate },
         "alias for -b:a (select bitrate for audio streams)", "bitrate" },
+    { "apad",             OPT_TYPE_STRING,  OPT_AUDIO | OPT_PERSTREAM | OPT_EXPERT | OPT_OUTPUT,
+        { .off = OFFSET(apad) },
+        "audio pad", "" },
     { "atag",             OPT_TYPE_FUNC,    OPT_AUDIO | OPT_FUNC_ARG  | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT | OPT_HAS_CANON,
         { .func_arg = opt_old2new },
         "force audio tag/fourcc", "fourcc/tag",