ffmpeg_filter: fix several logic failures

Move global thread variables to better place.
Use correct variable for simple and complex filtergraphs.

This makes number of threads set per filter work again.

Signed-off-by: Paul B Mahol <onemda@gmail.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/ffmpeg_opt.c b/ffmpeg_opt.c
index ddda3f2a14..7c570f3ac7 100644
--- a/ffmpeg_opt.c
+++ b/ffmpeg_opt.c
@@ -119,6 +119,8 @@ int qp_hist           = 0;
 int stdin_interaction = 1;
 int frame_bits_per_raw_sample = 0;
 float max_error_rate  = 2.0/3;
+int filter_nbthreads = 0;
+int filter_complex_nbthreads = 0;
 
 
 static int intra_only         = 0;