[FFmpeg-cvslog] avcodec/mpeg4videodec: Don't initialize unused parts of RLTables

[Andreas Rheinhardt]

ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinhardt at outlook.com> | Sun May 18 01:01:28 2025 +0200| [f887a2b00615b011ee3d637c89d4f56ca8b148b8] | committer: Andreas Rheinhardt

avcodec/mpeg4videodec: Don't initialize unused parts of RLTables

The reversible VLC tables use a simpler escaping method
than the ordinary VLCs: It does not use max_run, max_level etc.
and therefore one does not need to initialize these at all.

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

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=f887a2b00615b011ee3d637c89d4f56ca8b148b8
---

 libavcodec/mpeg4videodec.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/libavcodec/mpeg4videodec.c b/libavcodec/mpeg4videodec.c
index b6bb21174e..4d09a58ffb 100644
--- a/libavcodec/mpeg4videodec.c
+++ b/libavcodec/mpeg4videodec.c
@@ -3901,7 +3901,6 @@ static int mpeg4_update_thread_context_for_user(AVCodecContext *dst,
 
 static av_cold void mpeg4_init_static(void)
 {
-    static uint8_t mpeg4_rvlc_rl_tables[2][2][2 * MAX_RUN + MAX_LEVEL + 3];
     static VLCElem vlc_buf[6498];
     VLCInitState state = VLC_INIT_STATE(vlc_buf);
 
@@ -3924,8 +3923,6 @@ static av_cold void mpeg4_init_static(void)
     }
 
     ff_mpeg4_init_rl_intra();
-    ff_rl_init(&ff_rvlc_rl_inter, mpeg4_rvlc_rl_tables[0]);
-    ff_rl_init(&ff_rvlc_rl_intra, mpeg4_rvlc_rl_tables[1]);
     INIT_FIRST_VLC_RL(ff_mpeg4_rl_intra, 554);
     VLC_INIT_RL(ff_rvlc_rl_inter, 1072);
     INIT_FIRST_VLC_RL(ff_rvlc_rl_intra, 1072);