---
libavcodec/libx264.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/libavcodec/libx264.c b/libavcodec/libx264.c
index abf0a3e..3f06e97 100644
--- a/libavcodec/libx264.c
+++ b/libavcodec/libx264.c
@@ -155,9 +155,12 @@ static int X264_frame(AVCodecContext *ctx, AVPacket *pkt,
const AVFrame *frame,
frame->pict_type == AV_PICTURE_TYPE_P ? X264_TYPE_P :
frame->pict_type == AV_PICTURE_TYPE_B ? X264_TYPE_B :
X264_TYPE_AUTO;
- if (x4->params.b_tff != frame->top_field_first) {
- x4->params.b_tff = frame->top_field_first;
- x264_encoder_reconfig(x4->enc, &x4->params);
+ if (frame->field_state & AV_FRAME_INTERLACED) {
+ if ((x4->params.b_tff && frame->field_state ==
AV_FRAME_INTERLACED_TFF) ||
+ (!x4->params.b_tff && frame->field_state ==
AV_FRAME_INTERLACED_BFF)) {
+ x4->params.b_tff = !x4->params.b_tff;
+ x264_encoder_reconfig(x4->enc, &x4->params);
+ }
}
if (x4->params.vui.i_sar_height != ctx->sample_aspect_ratio.den ||
x4->params.vui.i_sar_width != ctx->sample_aspect_ratio.num) {
--
1.7.9.5
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