On 12/18/2023 4:19 PM, Anton Khirnov wrote:
---
  libavformat/options.c | 10 ++++++++++
  1 file changed, 10 insertions(+)

diff --git a/libavformat/options.c b/libavformat/options.c
index bf6113ca95..cc89dd6c72 100644
--- a/libavformat/options.c
+++ b/libavformat/options.c
@@ -229,6 +229,16 @@ static const AVOption stream_options[] = {
          { "metadata",           .type = AV_OPT_TYPE_CONST, { .i64 = 
AV_DISPOSITION_METADATA          },    .unit = "disposition" },
          { "dependent",          .type = AV_OPT_TYPE_CONST, { .i64 = 
AV_DISPOSITION_DEPENDENT         },    .unit = "disposition" },
          { "still_image",        .type = AV_OPT_TYPE_CONST, { .i64 = 
AV_DISPOSITION_STILL_IMAGE       },    .unit = "disposition" },
+
+    { "discard", NULL, offsetof(AVStream, discard), AV_OPT_TYPE_INT, { .i64 = 
AVDISCARD_DEFAULT }, INT_MIN, INT_MAX,
+        .flags = AV_OPT_FLAG_DECODING_PARAM, .unit = "avdiscard" },
+        { "none",               .type = AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONE     }, 
.unit = "avdiscard" },
+        { "default",            .type = AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_DEFAULT  }, 
.unit = "avdiscard" },
+        { "noref",              .type = AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONREF   }, 
.unit = "avdiscard" },
+        { "bidir",              .type = AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_BIDIR    }, 
.unit = "avdiscard" },
+        { "nointra",            .type = AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONINTRA }, 
.unit = "avdiscard" },
+        { "nokey",              .type = AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_NONKEY   }, 
.unit = "avdiscard" },
+        { "all",                .type = AV_OPT_TYPE_CONST, {.i64 = AVDISCARD_ALL      }, 
.unit = "avdiscard" },
      { NULL }
  };

Should be ok.

Maybe also add "id" like i did for AVStreamGroup while at it.
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