[FFmpeg-devel] [PATCH 3/3] avcodec/jpeglsdec: Avoid get_bits_long() where possible

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Wed Jan 5 23:38:57 EET 2022


It is possible here, because the values of ff_log2_run used
here are actually in the range 0..15 given that run_index is
in the range 0..31.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
---
 libavcodec/jpeglsdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c
index 32c0d2eb3f..269c71dc18 100644
--- a/libavcodec/jpeglsdec.c
+++ b/libavcodec/jpeglsdec.c
@@ -277,7 +277,7 @@ static inline int ls_decode_line(JLSState *state, MJpegDecodeContext *s,
             /* decode aborted run */
             r = ff_log2_run[state->run_index[comp]];
             if (r)
-                r = get_bits_long(&s->gb, r);
+                r = get_bits(&s->gb, r);
             if (x + r * stride > w) {
                 r = (w - x) / stride;
             }
-- 
2.32.0



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