video: decouple filtering/decoding slightly more

Lots of noise to remove the vfilter/vo fields from dec_video.

From now on, video filtering and output will still be done together,
summarized under struct vo_chain.

There is the question where exactly the vf_chain should go in such a
decoupled architecture. The end goal is being able to place a "complex"
filter between video decoders and output (which will culminate in
natural integration of A->V filters for natural integration of
libavfilter audio visualizations). The vf_chain is still useful for
"final" processing, such as format conversions and deinterlacing. Also,
there's only 1 VO and 1 --vf option. So having 1 vf_chain for a VO seems
ideal, since otherwise there would be no natural way to handle all these
existing options and mechanisms.

There is still some work required to truly decouple decoding.

1 files changed, 0 insertions, 2 deletions

diff --git a/video/decode/dec_video.h b/video/decode/dec_video.h
index 7f59d6bd3b..a093370213 100644
--- a/video/decode/dec_video.h
+++ b/video/decode/dec_video.h
@@ -31,8 +31,6 @@ struct dec_video {
     struct mp_log *log;
     struct mpv_global *global;
     struct MPOpts *opts;
-    struct vf_chain *vfilter;  // video filter chain
-    struct vo *vo;  // (still) needed by video_set/get_colors
     const struct vd_functions *vd_driver;
     struct mp_hwdec_info *hwdec_info; // video output hwdec handles
     struct sh_stream *header;