h2645_parse: Make ff_h2645_packet_split reference-compatible

This is in preparation for a patch for cbs_h2645. Now the packet's
rbsp_buffer can be owned by an AVBuffer.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@googlemail.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/libavcodec/h2645_parse.h b/libavcodec/h2645_parse.h
index 6dbba8fe4a..2c29ca517c 100644
--- a/libavcodec/h2645_parse.h
+++ b/libavcodec/h2645_parse.h
@@ -23,6 +23,7 @@
 
 #include <stdint.h>
 
+#include "libavutil/buffer.h"
 #include "avcodec.h"
 #include "get_bits.h"
 
@@ -66,6 +67,7 @@ typedef struct H2645NAL {
 
 typedef struct H2645RBSP {
     uint8_t *rbsp_buffer;
+    AVBufferRef *rbsp_buffer_ref;
     int rbsp_buffer_alloc_size;
     int rbsp_buffer_size;
 } H2645RBSP;
@@ -92,10 +94,15 @@ int ff_h2645_extract_rbsp(const uint8_t *src, int length, H2645RBSP *rbsp,
  * the data is contained in the input buffer pointed to by buf.
  * Otherwise, the unescaped data is part of the rbsp_buffer described by the
  * packet's H2645RBSP.
+ *
+ * If the packet's rbsp_buffer_ref is not NULL, the underlying AVBuffer must
+ * own rbsp_buffer. If not and rbsp_buffer is not NULL, use_ref must be 0.
+ * If use_ref is set, rbsp_buffer will be reference-counted and owned by
+ * the underlying AVBuffer of rbsp_buffer_ref.
  */
 int ff_h2645_packet_split(H2645Packet *pkt, const uint8_t *buf, int length,
                           void *logctx, int is_nalff, int nal_length_size,
-                          enum AVCodecID codec_id, int small_padding);
+                          enum AVCodecID codec_id, int small_padding, int use_ref);
 
 /**
  * Free all the allocated memory in the packet.