avformat/mux: return a pointer to the packet in ff_interleaved_peek()

And make it const, so the caller doesn't attempt to change it.
ff_get_muxer_ts_offset() should be used to get the muxer timestamp offset.

Signed-off-by: James Almer <jamrial@gmail.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/libavformat/internal.h b/libavformat/internal.h
index 33ece6b172..0ffdc87b6a 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -865,14 +865,10 @@ int ff_bprint_to_codecpar_extradata(AVCodecParameters *par, struct AVBPrint *buf
 
 /**
  * Find the next packet in the interleaving queue for the given stream.
- * The pkt parameter is filled in with the queued packet, including
- * references to the data (which the caller is not allowed to keep or
- * modify).
  *
- * @return 0 if a packet was found, a negative value if no packet was found
+ * @return a pointer to a packet if one was found, NULL otherwise.
  */
-int ff_interleaved_peek(AVFormatContext *s, int stream,
-                        AVPacket *pkt, int add_offset);
+const AVPacket *ff_interleaved_peek(AVFormatContext *s, int stream);
 
 int ff_get_muxer_ts_offset(AVFormatContext *s, int stream_index, int64_t *offset);