diff options
| -rw-r--r-- | doc/filters.texi | 2 | ||||
| -rw-r--r-- | libavfilter/vf_yadif.c | 9 |
2 files changed, 10 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index a66900e160..3842886521 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -996,6 +996,8 @@ enable automatic detection @end table Default value is -1. +If interlacing is unknown or decoder does not export this information, +top field first will be assumed. @c man end VIDEO FILTERS diff --git a/libavfilter/vf_yadif.c b/libavfilter/vf_yadif.c index d96e5877e9..bd0a9de877 100644 --- a/libavfilter/vf_yadif.c +++ b/libavfilter/vf_yadif.c @@ -167,7 +167,14 @@ static void return_frame(AVFilterContext *ctx, int is_second) { YADIFContext *yadif = ctx->priv; AVFilterLink *link= ctx->outputs[0]; - int tff = yadif->parity == -1 ? yadif->cur->video->top_field_first : (yadif->parity^1); + int tff; + + if (yadif->parity == -1) { + tff = yadif->cur->video->interlaced ? + yadif->cur->video->top_field_first : 1; + } else { + tff = yadif->parity^1; + } if (is_second) yadif->out = avfilter_get_video_buffer(link, AV_PERM_WRITE | AV_PERM_PRESERVE | |