From 8b64c2ba0382892cad9e1a5ba601696d4cbb4d04 Mon Sep 17 00:00:00 2001
From: Anton Khirnov <anton@khirnov.net>
Date: Mon, 28 Oct 2013 14:59:20 +0100
Subject: [PATCH] lavc: add a dummy field to AVStream to preserve ABI
compatibility for avconv
avconv abuses the API by accessing AVStream.parser (which is private).
Removing AVStream.reference_dts in
2ba68dd044ca8fc591139c05563840f546a9c0c0 breaks ABI compatibility for an
old avconv using a newer lavf. Fix this by adding a dummy field until
the next bump.
---
libavformat/avformat.h | 5 +++++
libavformat/version.h | 3 +++
2 files changed, 8 insertions(+)
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index a8e3a7d7666..50e4f5c69da 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -729,6 +729,11 @@ typedef struct AVStream {
int pts_wrap_bits; /**< number of bits in pts (used for wrapping control) */
+#if FF_API_REFERENCE_DTS
+ /* a hack to keep ABI compatibility for avconv, which accesses parser even
+ * though it should not */
+ int64_t do_not_use;
+#endif
// Timestamp generation support:
int64_t first_dts;
int64_t cur_dts;
diff --git a/libavformat/version.h b/libavformat/version.h
index 43431a56f45..791933f3074 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -48,5 +48,8 @@
* dropped at a future version bump. The defines themselves are not part of
* the public API and may change, break or disappear at any time.
*/
+#ifndef FF_API_REFERENCE_DTS
+#define FF_API_REFERENCE_DTS (LIBAVFORMAT_VERSION_MAJOR < 56)
+#endif
#endif /* AVFORMAT_VERSION_H */
--
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