[FFmpeg-devel] [PATCH 2/2] ffmpeg: Warn if the muxers bitexact flag is not set but it looks as if the user wants it set

[Michael Niedermayer]

From: Michael Niedermayer <michael at niedermayer.cc>

Note: I doubt requiring this in the future is a good idea
See: [FFmpeg-devel] [PATCH 3/4] fate: add -fflags +bitexact to the relevant targets
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
---
 ffmpeg.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ffmpeg.c b/ffmpeg.c
index ae02b00..7e29549 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -2757,6 +2757,11 @@ static void set_encoder_id(OutputFile *of, OutputStream *ost)
     if (!encoder_string)
         exit_program(1);
 
+    if (!(format_flags & AVFMT_FLAG_BITEXACT) && (codec_flags & AV_CODEC_FLAG_BITEXACT)) {
+        av_log(NULL, AV_LOG_WARNING, "Muxer bitexact flag is not set, please add -fflags +bitexact.\n"
+                                     "This will become mandatory with future API cleanup\n");
+    }
+
     if (!(format_flags & AVFMT_FLAG_BITEXACT) && !(codec_flags & AV_CODEC_FLAG_BITEXACT))
         av_strlcpy(encoder_string, LIBAVCODEC_IDENT " ", encoder_string_len);
     else
-- 
1.7.9.5