For HEVC streams, only the FourCC tag is written without profile, level etc.,
This is breaking playout support in native Safari.
Native Safari playout expects the full info in CODECS tag or None at all.
---
 libavformat/dashenc.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libavformat/dashenc.c b/libavformat/dashenc.c
index 4e2ea2ebf2..f8b3d106d5 100644
--- a/libavformat/dashenc.c
+++ b/libavformat/dashenc.c
@@ -915,6 +915,7 @@ static int write_manifest(AVFormatContext *s, int final)
             AVStream *st = s->streams[i];
             OutputStream *os = &c->streams[i];
             char *agroup = NULL;
+            char *codec_str_ptr = NULL;
             int stream_bitrate = st->codecpar->bit_rate + os->muxer_overhead;
             if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
                 continue;
@@ -925,10 +926,13 @@ static int write_manifest(AVFormatContext *s, int final)
                 av_strlcat(codec_str, ",", sizeof(codec_str));
                 av_strlcat(codec_str, audio_codec_str, sizeof(codec_str));
             }
+            if (st->codecpar->codec_id != AV_CODEC_ID_HEVC) {
+                codec_str_ptr = codec_str;
+            }
             get_hls_playlist_name(playlist_file, sizeof(playlist_file), NULL, 
i);
             ff_hls_write_stream_info(st, c->m3u8_out, stream_bitrate,
                                      playlist_file, agroup,
-                                     codec_str, NULL);
+                                     codec_str_ptr, NULL);
         }
         dashenc_io_close(s, &c->m3u8_out, temp_filename);
         if (use_rename)
-- 
2.17.1 (Apple Git-112)

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