[FFmpeg-devel] [PATCH] ffmpeg: don't force source-tracked keyframes for duplicates

[Gyan Doshi]

Prevents a run of consecutive duplicate frames from all being encoded
as keyframes, when force_key_frames is set to source.
---
 fftools/ffmpeg.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fftools/ffmpeg.c b/fftools/ffmpeg.c
index 9af2bc2fb5..d821b40877 100644
--- a/fftools/ffmpeg.c
+++ b/fftools/ffmpeg.c
@@ -1266,7 +1266,8 @@ static void do_video_out(OutputFile *of,
             ost->forced_keyframes_expr_const_values[FKF_N] += 1;
         } else if (   ost->forced_keyframes
                    && !strncmp(ost->forced_keyframes, "source", 6)
-                   && in_picture->key_frame==1) {
+                   && in_picture->key_frame==1
+                   && !i) {
             forced_keyframe = 1;
         }
 
-- 
2.24.1