[FFmpeg-devel] [PATCH v9 1/3] avutil/log: Add log flag AV_LOG_PRINT_MEMADDRESSES

[softworkz <ffmpegagent@gmail.com>]

From: softworkz <softworkz@hotmail.com>

which is controls prefix formatting. With this flag set, the prefix is
printed without the memory address, otherwise it is included.

Signed-off-by: softworkz <softworkz@hotmail.com>
---
 doc/APIchanges      | 3 +++
 libavutil/log.c     | 6 ++++--
 libavutil/log.h     | 5 +++++
 libavutil/version.h | 2 +-
 4 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/doc/APIchanges b/doc/APIchanges
index 65bf5a9419..db832f8b19 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -1,5 +1,8 @@
 The last version increases of all libraries were on 2025-03-28
 
+2025-03-xx - xxxxxxxxxx - lavu 60.2.100 - log.h
+  Add flag AV_LOG_NO_PRINT_MEMADDRESS
+
 API changes, most recent first:
 
 2025-04-07 - 19e9a203b7 - lavu 60.01.100 - dict.h
diff --git a/libavutil/log.c b/libavutil/log.c
index c5ee876a88..1949a797e7 100644
--- a/libavutil/log.c
+++ b/libavutil/log.c
@@ -327,16 +327,18 @@ static void format_line(void *avcl, int level, const char *fmt, va_list vl,
 
     if(type) type[0] = type[1] = AV_CLASS_CATEGORY_NA + 16;
     if (*print_prefix && avc) {
+        const char *p_fmt = flags & AV_LOG_NO_PRINT_MEMADDRESS ? "[%s] " : "[%s @ %p] ";
+
         if (avc->parent_log_context_offset) {
             AVClass** parent = *(AVClass ***) (((uint8_t *) avcl) +
                                    avc->parent_log_context_offset);
             if (parent && *parent) {
-                av_bprintf(part+0, "[%s @ %p] ",
+                av_bprintf(part+0, p_fmt,
                            item_name(parent, *parent), parent);
                 if(type) type[0] = get_category(parent);
             }
         }
-        av_bprintf(part+1, "[%s @ %p] ",
+        av_bprintf(part+1, p_fmt,
                    item_name(avcl, avc), avcl);
         if(type) type[1] = get_category(avcl);
     }
diff --git a/libavutil/log.h b/libavutil/log.h
index dd094307ce..499c5d71ab 100644
--- a/libavutil/log.h
+++ b/libavutil/log.h
@@ -416,6 +416,11 @@ int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl,
  */
 #define AV_LOG_PRINT_DATETIME 8
 
+/**
+ * Do not print memory addresses of context instances.
+ */
+#define AV_LOG_NO_PRINT_MEMADDRESS 16
+
 void av_log_set_flags(int arg);
 int av_log_get_flags(void);
 
diff --git a/libavutil/version.h b/libavutil/version.h
index 5139883569..4717cd562b 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -79,7 +79,7 @@
  */
 
 #define LIBAVUTIL_VERSION_MAJOR  60
-#define LIBAVUTIL_VERSION_MINOR   1
+#define LIBAVUTIL_VERSION_MINOR   2
 #define LIBAVUTIL_VERSION_MICRO 100
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
-- 
ffmpeg-codebot

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