lavf: ignore attachment streams for interleaving purposes

Those streams should never get any packets by definition.

1 files changed, 7 insertions, 0 deletions

diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 50e4f5c69d..00380d7b6c 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -796,6 +796,8 @@ typedef struct AVChapter {
     AVDictionary *metadata;
 } AVChapter;
 
+typedef struct AVFormatInternal AVFormatInternal;
+
 /**
  * Format I/O context.
  * New fields can be added to the end with minor version bumps.
@@ -1049,6 +1051,11 @@ typedef struct AVFormatContext {
      */
     AVRational offset_timebase;
 
+    /**
+     * An opaque field for libavformat internal usage.
+     * Must not be accessed in any way by callers.
+     */
+    AVFormatInternal *internal;
 } AVFormatContext;
 
 typedef struct AVPacketList {