avcodec/mediacodecdec: add debug logging around hw buffer lifecycle

Some Android devices are very finicky about how quicky output buffers
are returned back to the decoder, especially when they are associated
with a Surface.

This commit adds a new counter that keeps track of exactly how many hw
output buffers are being retained by the user, along with DEBUG level
logging that makes it easy to track the lifecycle of these buffers.

Signed-off-by: Aman Gupta <aman@tmm1.net>
Signed-off-by: Matthieu Bouron <matthieu.bouron@gmail.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/libavcodec/mediacodecdec_common.h b/libavcodec/mediacodecdec_common.h
index 3fd2412a65..4f3b4f9fa5 100644
--- a/libavcodec/mediacodecdec_common.h
+++ b/libavcodec/mediacodecdec_common.h
@@ -38,6 +38,7 @@ typedef struct MediaCodecDecContext {
 
     AVCodecContext *avctx;
     atomic_int refcount;
+    atomic_int hw_buffer_count;
 
     char *codec_name;