---
libavformat/avformat.h | 6 ++++++
libavformat/utils.c | 2 ++
2 files changed, 8 insertions(+)
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 3ad92a06e7..6aa7c310f7 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -995,6 +995,12 @@ typedef struct AVStream {
* it into the file
*/
#define AVSTREAM_EVENT_FLAG_METADATA_UPDATED 0x0001
+/**
+ * - demuxing: new packets for this stream were read from the file. This
+ * event is informational only and does not guarantee that new packets
+ * for this stream will necessarily be returned from av_read_frame().
+ */
+#define AVSTREAM_EVENT_FLAG_NEW_PACKETS (1 << 1)
/**
* Real base framerate of the stream.
diff --git a/libavformat/utils.c b/libavformat/utils.c
index e8335a601f..be275971d0 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -1533,6 +1533,8 @@ static int read_frame_internal(AVFormatContext *s,
AVPacket *pkt)
ret = 0;
st = s->streams[pkt->stream_index];
+ st->event_flags |= AVSTREAM_EVENT_FLAG_NEW_PACKETS;
+
/* update context if required */
if (st->internal->need_context_update) {
if (avcodec_is_open(st->internal->avctx)) {
--
2.28.0
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