[FFmpeg-cvslog] avcodec/mpegvideo: Constify src of ff_update_duplicate_context()

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Mon Jan 31 05:24:02 2022 +0100| [314e0a821e8c8656d3f2c70d97bf24ad3fbca948] | committer: Andreas Rheinhardt

avcodec/mpegvideo: Constify src of ff_update_duplicate_context()

Also do the same for update_duplicate_context_after_me()
in mpegvideo_enc.c.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=314e0a821e8c8656d3f2c70d97bf24ad3fbca948
---

 libavcodec/mpegvideo.c     | 2 +-
 libavcodec/mpegvideo.h     | 2 +-
 libavcodec/mpegvideo_enc.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index a24547b81c..a4ed1f8b36 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -469,7 +469,7 @@ static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
 #undef COPY
 }
 
-int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
+int ff_update_duplicate_context(MpegEncContext *dst, const MpegEncContext *src)
 {
     MpegEncContext bak;
     int i, ret;
diff --git a/libavcodec/mpegvideo.h b/libavcodec/mpegvideo.h
index d96cd7f1ec..77d1593928 100644
--- a/libavcodec/mpegvideo.h
+++ b/libavcodec/mpegvideo.h
@@ -589,7 +589,7 @@ void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64]);
 
 void ff_clean_intra_table_entries(MpegEncContext *s);
 
-int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src);
+int ff_update_duplicate_context(MpegEncContext *dst, const MpegEncContext *src);
 void ff_set_qscale(MpegEncContext * s, int qscale);
 
 void ff_mpv_idct_init(MpegEncContext *s);
diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
index 9c2243eed7..5c8e13947f 100644
--- a/libavcodec/mpegvideo_enc.c
+++ b/libavcodec/mpegvideo_enc.c
@@ -250,7 +250,7 @@ void ff_init_qscale_tab(MpegEncContext *s)
 }
 
 static void update_duplicate_context_after_me(MpegEncContext *dst,
-                                              MpegEncContext *src)
+                                              const MpegEncContext *src)
 {
 #define COPY(a) dst->a= src->a
     COPY(pict_type);