[FFmpeg-devel] [PATCH v4 5/6] ogg/vorbis: implement header packet skip in chained ogg bitstreams.

[Romain Beauxis <romain.beauxis@gmail.com>]

---
 libavformat/oggparsevorbis.c               | 11 +++++++++--
 tests/ref/fate/ogg-vorbis-chained-meta.txt |  3 ---
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/libavformat/oggparsevorbis.c b/libavformat/oggparsevorbis.c
index 9f50ab9ffc..8b4ae872d2 100644
--- a/libavformat/oggparsevorbis.c
+++ b/libavformat/oggparsevorbis.c
@@ -418,6 +418,7 @@ static int vorbis_packet(AVFormatContext *s, int idx)
     struct ogg_stream *os = ogg->streams + idx;
     struct oggvorbis_private *priv = os->private;
     int duration, flags = 0;
+    int skip_packet = 0;
 
     if (!priv->vp)
         return AVERROR_INVALIDDATA;
@@ -480,7 +481,13 @@ static int vorbis_packet(AVFormatContext *s, int idx)
         if (duration < 0) {
             os->pflags |= AV_PKT_FLAG_CORRUPT;
             return 0;
-        } else if (flags & VORBIS_FLAG_COMMENT) {
+        }
+
+        if (flags &
+            (VORBIS_FLAG_HEADER | VORBIS_FLAG_COMMENT | VORBIS_FLAG_SETUP))
+            skip_packet = 1;
+
+        if (flags & VORBIS_FLAG_COMMENT) {
             vorbis_update_metadata(s, idx);
             flags = 0;
         }
@@ -505,7 +512,7 @@ static int vorbis_packet(AVFormatContext *s, int idx)
         priv->final_duration += os->pduration;
     }
 
-    return 0;
+    return skip_packet;
 }
 
 const struct ogg_codec ff_vorbis_codec = {
diff --git a/tests/ref/fate/ogg-vorbis-chained-meta.txt b/tests/ref/fate/ogg-vorbis-chained-meta.txt
index b7a97c90e2..1206f86c1f 100644
--- a/tests/ref/fate/ogg-vorbis-chained-meta.txt
+++ b/tests/ref/fate/ogg-vorbis-chained-meta.txt
@@ -6,10 +6,7 @@ Stream ID: 0, frame PTS: 128, metadata: N/A
 Stream ID: 0, packet PTS: 704, packet DTS: 704
 Stream ID: 0, frame PTS: 704, metadata: N/A
 Stream ID: 0, packet PTS: 0, packet DTS: 0
-Stream ID: 0, packet PTS: 0, packet DTS: 0
 Stream ID: 0, new metadata: encoder=Lavc61.19.100 libvorbis:title=Second Stream
-Stream ID: 0, packet PTS: 0, packet DTS: 0
-Stream ID: 0, packet PTS: 0, packet DTS: 0
 Stream ID: 0, frame PTS: 0, metadata: N/A
 Stream ID: 0, packet PTS: 128, packet DTS: 128
 Stream ID: 0, frame PTS: 128, metadata: N/A
-- 
2.39.5 (Apple Git-154)

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