[FFmpeg-devel] [PATCH 1/2] lavu/opt: add AV_OPT_FLAG_DEPRECATED

[Clément Bœsch]

---
TODO: APIChanges + lavu minor bump (not done yet because it will
conflict with the threadmessage patch)
---
 libavutil/opt.c | 6 ++++++
 libavutil/opt.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/libavutil/opt.c b/libavutil/opt.c
index 3b0aab4ee8..99282605f5 100644
--- a/libavutil/opt.c
+++ b/libavutil/opt.c
@@ -463,6 +463,9 @@ int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
     if (o->flags & AV_OPT_FLAG_READONLY)
         return AVERROR(EINVAL);
 
+    if (o->flags & AV_OPT_FLAG_DEPRECATED)
+        av_log(obj, AV_LOG_WARNING, "The \"%s\" option is deprecated: %s\n", name, o->help);
+
     dst = ((uint8_t *)target_obj) + o->offset;
     switch (o->type) {
     case AV_OPT_TYPE_BOOL:
@@ -759,6 +762,9 @@ int av_opt_get(void *obj, const char *name, int search_flags, uint8_t **out_val)
     if (!o || !target_obj || (o->offset<=0 && o->type != AV_OPT_TYPE_CONST))
         return AVERROR_OPTION_NOT_FOUND;
 
+    if (o->flags & AV_OPT_FLAG_DEPRECATED)
+        av_log(obj, AV_LOG_WARNING, "The \"%s\" option is deprecated: %s\n", name, o->help);
+
     dst = (uint8_t *)target_obj + o->offset;
 
     buf[0] = 0;
diff --git a/libavutil/opt.h b/libavutil/opt.h
index 07da68ea23..1352741fb6 100644
--- a/libavutil/opt.h
+++ b/libavutil/opt.h
@@ -289,6 +289,7 @@ typedef struct AVOption {
 #define AV_OPT_FLAG_READONLY        128
 #define AV_OPT_FLAG_BSF_PARAM       (1<<8) ///< a generic parameter which can be set by the user for bit stream filtering
 #define AV_OPT_FLAG_FILTERING_PARAM (1<<16) ///< a generic parameter which can be set by the user for filtering
+#define AV_OPT_FLAG_DEPRECATED      (1<<17)
 //FIXME think about enc-audio, ... style flags
 
     /**
-- 
2.17.0