From 735b082231a93f7193448ed5cb2a461b3df531e2 Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Sat, 9 Sep 2023 14:11:56 +0200 Subject: [PATCH] fftools/ffmpeg_enc: unbreak -force_key_frames source_no_drop Unlike the 'source' mode, which preserves source keyframe-marking as-is, the 'source_no_drop' mode attempts to keep track of keyframes dropped by framerate conversion and mark the next output frame as key in such cases. However, * c75be061487 broke this functionality entirely, and made it equivalent to 'source' * even before it would only work when the frame immediately following the dropped keyframe is preserved and not dropped as well Also, drop a redundant check for 'frame' in setting dropped_keyframe, as it is redundant with the check on the above line. --- fftools/ffmpeg_enc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/fftools/ffmpeg_enc.c b/fftools/ffmpeg_enc.c index c42bfce905..2d86cee22d 100644 --- a/fftools/ffmpeg_enc.c +++ b/fftools/ffmpeg_enc.c @@ -1054,7 +1054,7 @@ finish: } ost->last_dropped = *nb_frames == *nb_frames_prev && frame; - ost->kf.dropped_keyframe = ost->last_dropped && frame && (frame->flags & AV_FRAME_FLAG_KEY); + ost->kf.dropped_keyframe |= ost->last_dropped && (frame->flags & AV_FRAME_FLAG_KEY); } static enum AVPictureType forced_kf_apply(void *logctx, KeyframeForceCtx *kf, @@ -1097,8 +1097,9 @@ static enum AVPictureType forced_kf_apply(void *logctx, KeyframeForceCtx *kf, (in_picture->flags & AV_FRAME_FLAG_KEY) && !dup_idx) { goto force_keyframe; } else if (kf->type == KF_FORCE_SOURCE_NO_DROP && !dup_idx) { + int dropped_keyframe = kf->dropped_keyframe; kf->dropped_keyframe = 0; - if ((in_picture->flags & AV_FRAME_FLAG_KEY) || kf->dropped_keyframe) + if ((in_picture->flags & AV_FRAME_FLAG_KEY) || dropped_keyframe) goto force_keyframe; }