From b212a1eb8f24bea4db8df4173830cdab0cf0ba56 Mon Sep 17 00:00:00 2001
From: gofr <32750931+gofr@users.noreply.github.com>
Date: Sat, 10 Oct 2020 16:04:18 +0200
Subject: [PATCH] Keep baseline compatibility when specifying quality

16-bit quantization tables can appear at quality values below
about 25. These may cause compatibility problems. Maintain
baseline compatibility and avoid confusing users with warning
messages.
---
 src/libImaging/JpegEncode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libImaging/JpegEncode.c b/src/libImaging/JpegEncode.c
index 0f73666f1..ab730d92d 100644
--- a/src/libImaging/JpegEncode.c
+++ b/src/libImaging/JpegEncode.c
@@ -173,7 +173,7 @@ ImagingJpegEncode(Imaging im, ImagingCodecState state, UINT8* buf, int bytes)
                     context->cinfo.comp_info[i].quant_tbl_no = last_q;
                 }
             } else if (context->quality != -1) {
-                jpeg_set_quality(&context->cinfo, context->quality, FALSE);
+                jpeg_set_quality(&context->cinfo, context->quality, TRUE);
             }
 
             /* Set subsampling options */