decode: add a mechanism for performing delayed processing on the decoded frames

This will be useful in the CUVID hwaccel.

1 files changed, 11 insertions, 0 deletions

diff --git a/libavcodec/decode.c b/libavcodec/decode.c
index bcc119c829..9050b57b0b 100644
--- a/libavcodec/decode.c
+++ b/libavcodec/decode.c
@@ -419,6 +419,14 @@ static int decode_receive_frame_internal(AVCodecContext *avctx, AVFrame *frame)
 
             fdd = (FrameDecodeData*)frame->opaque_ref->data;
 
+            if (fdd->post_process) {
+                ret = fdd->post_process(avctx, frame);
+                if (ret < 0) {
+                    av_frame_unref(frame);
+                    return ret;
+                }
+            }
+
             user_opaque_ref = fdd->user_opaque_ref;
             fdd->user_opaque_ref = NULL;
             av_buffer_unref(&frame->opaque_ref);
@@ -1014,6 +1022,9 @@ static void decode_data_free(void *opaque, uint8_t *data)
 
     av_buffer_unref(&fdd->user_opaque_ref);
 
+    if (fdd->post_process_opaque_free)
+        fdd->post_process_opaque_free(fdd->post_process_opaque);
+
     av_freep(&fdd);
 }