[FFmpeg-devel] [PATCH 5/9] fftools/ffmpeg_mux_init: change 1-bit bitfields from int to unsigned

Anton Khirnov anton at khirnov.net
Thu Dec 14 21:31:34 EET 2023


They cannot store 1 as signed, only 0 and -1.

Avoids warnings such as:
  implicit truncation from 'int' to a one-bit wide bit-field changes value from 1 to -1 [-Wsingle-bit-bitfield-constant-conversion]
---
 fftools/ffmpeg_mux_init.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fftools/ffmpeg_mux_init.c b/fftools/ffmpeg_mux_init.c
index f527a083db..f870d48136 100644
--- a/fftools/ffmpeg_mux_init.c
+++ b/fftools/ffmpeg_mux_init.c
@@ -288,9 +288,9 @@ static int enc_stats_init(OutputStream *ost, EncStats *es, int pre,
     static const struct {
         enum EncStatsType  type;
         const char        *str;
-        int                pre_only:1;
-        int                post_only:1;
-        int                need_input_data:1;
+        unsigned           pre_only:1;
+        unsigned           post_only:1;
+        unsigned           need_input_data:1;
     } fmt_specs[] = {
         { ENC_STATS_FILE_IDX,       "fidx"                      },
         { ENC_STATS_STREAM_IDX,     "sidx"                      },
-- 
2.42.0



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