commands, vd_ffmpeg: fix switch_ratio slave command

The implementation of the switch_ratio command was hacky and called
mpcodecs_config_vo() to reconfigure the filter/VO chain from under an
existing decoder. This call no longer worked properly with vd_ffmpeg
after that started using mpcodec_config_vo2(). Add new video decoder
control command VDCTRL_RESET_ASPECT and use this to tell vd_ffmpeg to
reinitialize the output chain properly.

1 files changed, 1 insertions, 1 deletions

diff --git a/command.c b/command.c
index bdb9343187..d5ab987baf 100644
--- a/command.c
+++ b/command.c
@@ -2948,7 +2948,7 @@ void run_command(MPContext *mpctx, mp_cmd_t *cmd)
             opts->movie_aspect = (float) sh_video->disp_w / sh_video->disp_h;
         else
             opts->movie_aspect = cmd->args[0].v.f;
-        mpcodecs_config_vo(sh_video, sh_video->disp_w, sh_video->disp_h, 0);
+        video_reset_aspect(sh_video);
         break;
 
     case MP_CMD_SPEED_INCR: {