diff mbox series

[FFmpeg-devel,064/114] avcodec/g2meet: Use least max_depth in get_vlc2()

Message ID 20201110104851.321029-65-andreas.rheinhardt@gmail.com
State Superseded
Headers show
Series VLC, esp. init_vlc patches | expand

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Context Check Description
andriy/x86_make success Make finished
andriy/x86_make_fate success Make fate finished

Commit Message

Andreas Rheinhardt Nov. 10, 2020, 10:48 a.m. UTC 
The longest AC codes of the standard JPEG tables are 16 bits long; for
the DC tables, the maximum is 11, so using max_depth of two is
sufficient.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
---
 libavcodec/g2meet.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/libavcodec/g2meet.c b/libavcodec/g2meet.c
index 6b870ae3d4..f6aa636bde 100644
--- a/libavcodec/g2meet.c
+++ b/libavcodec/g2meet.c
@@ -248,7 +248,7 @@  static int jpg_decode_block(JPGContext *c, GetBitContext *gb,
         return AVERROR_INVALIDDATA;
 
     c->bdsp.clear_block(block);
-    dc = get_vlc2(gb, c->dc_vlc[is_chroma].table, 9, 3);
+    dc = get_vlc2(gb, c->dc_vlc[is_chroma].table, 9, 2);
     if (dc < 0)
         return AVERROR_INVALIDDATA;
     if (dc)
@@ -259,7 +259,7 @@  static int jpg_decode_block(JPGContext *c, GetBitContext *gb,
 
     pos = 0;
     while (pos < 63) {
-        val = get_vlc2(gb, c->ac_vlc[is_chroma].table, 9, 3);
+        val = get_vlc2(gb, c->ac_vlc[is_chroma].table, 9, 2);
         if (val < 0)
             return AVERROR_INVALIDDATA;
         pos += val >> 4;