Libav instrumentation

instrument_avbuffer.diff

diff --git a/libavutil/buffer.c b/libavutil/buffer.c
index 1bc4a93..c277e94 100644
--- a/libavutil/buffer.c
+++ b/libavutil/buffer.c
@@ -22,6 +22,7 @@
 #include "atomic.h"
 #include "buffer_internal.h"
 #include "common.h"
+#include "log.h"
 #include "mem.h"
 #include "thread.h"

@@ -55,6 +56,11 @@ AVBufferRef *av_buffer_create(uint8_t *data, int size,
     ref->data   = data;
     ref->size   = size;

+    av_log(NULL, AV_LOG_INFO, "%s/%p %p->%p %d",
+           __PRETTY_FUNCTION__,
+           (intptr_t)pthread_self(),
+           ref, ref->buffer, buf->refcount);
+
     return ref;
 }

@@ -100,6 +106,11 @@ AVBufferRef *av_buffer_ref(AVBufferRef *buf)

     avpriv_atomic_int_add_and_fetch(&buf->buffer->refcount, 1);

+    av_log(NULL, AV_LOG_INFO, "%s/%p %p->%p %d",
+           __PRETTY_FUNCTION__,
+           (intptr_t)pthread_self(),
+           buf, buf->buffer, buf->buffer->refcount);
+
     return ret;
 }

@@ -109,6 +120,11 @@ void av_buffer_unref(AVBufferRef **buf)

     if (!buf || !*buf)
         return;
+    av_log(NULL, AV_LOG_INFO, "%s/%p %p->%p %d",
+           __PRETTY_FUNCTION__,
+           (intptr_t)pthread_self(),
+           *buf, (*buf)->buffer, (*buf)->buffer->refcount);
+
     b = (*buf)->buffer;
     av_freep(buf);

instrument_avframe.diff

diff --git a/libavutil/frame.c b/libavutil/frame.c
index e4f6ab3..f6ad496 100644
--- a/libavutil/frame.c
+++ b/libavutil/frame.c
@@ -26,6 +26,10 @@
 #include "mem.h"
 #include "samplefmt.h"

+#undef av_frame_free
+#undef av_frame_ref
+#undef av_frame_unref
+
 static void get_frame_defaults(AVFrame *frame)
 {
     if (frame->extended_data != frame->data)
diff --git a/libavutil/frame.h b/libavutil/frame.h
index c723cb0..2366a24 100644
--- a/libavutil/frame.h
+++ b/libavutil/frame.h
@@ -31,6 +31,7 @@
 #include "avutil.h"
 #include "buffer.h"
 #include "dict.h"
+#include "log.h"
 #include "rational.h"
 #include "samplefmt.h"
 #include "pixfmt.h"
@@ -409,6 +410,43 @@ void av_frame_unref(AVFrame *frame);
  */
 void av_frame_move_ref(AVFrame *dst, AVFrame *src);

+#define av_frame_free(frame) \
+    do { \
+        av_log(NULL, AV_LOG_INFO|AV_LOG_C(122), \
+               "%s:%s frame %p buffer %p\n", \
+               __PRETTY_FUNCTION__, \
+               "av_frame_free", \
+               *frame, \
+               *frame ? (*frame)->buf[0] : NULL); \
+        av_frame_free(frame); \
+    } while(0)
+
+#define av_frame_ref(dst, src) \
+    ({ \
+        int _ret; \
+        av_log(NULL, AV_LOG_INFO|AV_LOG_C(122), \
+               "%s:%s dst %p buffer %p src %p buffer %p\n", \
+               __PRETTY_FUNCTION__, \
+               "av_frame_ref", \
+               ((AVFrame *)dst), \
+               ((AVFrame *)dst)->buf[0], \
+               ((AVFrame *)src), \
+               ((AVFrame *)src)->buf[0]); \
+        _ret = av_frame_ref((dst), (src)); \
+        _ret; \
+    })
+
+#define av_frame_unref(frame) \
+    do { \
+        av_log(NULL, AV_LOG_INFO|AV_LOG_C(122), \
+               "%s:%s frame %p buffer %p\n", \
+               __PRETTY_FUNCTION__, \
+               "av_frame_unref", \
+               frame, \
+               frame ? frame->buf[0] : NULL); \
+        av_frame_unref(frame); \
+    } while (0)
+
 /**
  * Allocate new buffer(s) for audio or video data.
  *