From dc20b27802a4db3e46952b53c3aa8f331beffd37 Mon Sep 17 00:00:00 2001
From: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Date: Fri, 26 Feb 2021 10:32:51 +0100
Subject: [PATCH] avcodec/parser: Schedule av_parser_change for removal

Originally deprecated in 748c2fca7e4d99357c234936aa71212a6282be36,
publically deprecated in 9a07c1332cfe092b57b5758f22b686ca58806c60
(merged into FFmpeg in 1885ffb03d0af28e6bac2bcc8725fa15b93f6ac9).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
---
 libavcodec/avcodec.h | 6 +++++-
 libavcodec/parser.c  | 3 ++-
 libavcodec/version.h | 3 +++
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index ecc665677a..309d9965be 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -3576,14 +3576,18 @@ int av_parser_parse2(AVCodecParserContext *s,
                      int64_t pts, int64_t dts,
                      int64_t pos);
 
+#if FF_API_PARSER_CHANGE
 /**
  * @return 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed
- * @deprecated use AVBitStreamFilter
+ * @deprecated Use dump_extradata, remove_extra or extract_extradata
+ *             bitstream filters instead.
  */
+attribute_deprecated
 int av_parser_change(AVCodecParserContext *s,
                      AVCodecContext *avctx,
                      uint8_t **poutbuf, int *poutbuf_size,
                      const uint8_t *buf, int buf_size, int keyframe);
+#endif
 void av_parser_close(AVCodecParserContext *s);
 
 /**
diff --git a/libavcodec/parser.c b/libavcodec/parser.c
index a63f532c48..f4bc00da7d 100644
--- a/libavcodec/parser.c
+++ b/libavcodec/parser.c
@@ -186,6 +186,7 @@ int av_parser_parse2(AVCodecParserContext *s, AVCodecContext *avctx,
     return index;
 }
 
+#if FF_API_PARSER_CHANGE
 int av_parser_change(AVCodecParserContext *s, AVCodecContext *avctx,
                      uint8_t **poutbuf, int *poutbuf_size,
                      const uint8_t *buf, int buf_size, int keyframe)
@@ -220,7 +221,7 @@ int av_parser_change(AVCodecParserContext *s, AVCodecContext *avctx,
 
     return 0;
 }
-
+#endif
 void av_parser_close(AVCodecParserContext *s)
 {
     if (s) {
diff --git a/libavcodec/version.h b/libavcodec/version.h
index d7ccf9943e..169c763e8a 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -150,6 +150,9 @@
 #ifndef FF_API_MPV_RC_STRATEGY
 #define FF_API_MPV_RC_STRATEGY     (LIBAVCODEC_VERSION_MAJOR < 59)
 #endif
+#ifndef FF_API_PARSER_CHANGE
+#define FF_API_PARSER_CHANGE       (LIBAVCODEC_VERSION_MAJOR < 59)
+#endif
 #ifndef FF_API_THREAD_SAFE_CALLBACKS
 #define FF_API_THREAD_SAFE_CALLBACKS (LIBAVCODEC_VERSION_MAJOR < 60)
 #endif