core: audio: improve audio-only seeks and position reporting

Seeking while paused could result in the current audio pts being
reported incorrectly due to relevant variables not being reinitialized
after the seek until more audio was played. When playing audio-only
files, this meant that current overall playback position could be
reported incorrectly which in turn could break further seeks. Improve
things on two levels: First, store the seek target position and use
that as the current playback position for audio-only files until
things can be reinitialized. Second, try to reinitialize audio
decoding enough to know its current pts even while paused. Also avoid
printing the actual huge negative value of MP_NOPTS_VALUE on the
status line when pts could not be determined.

1 files changed, 1 insertions, 0 deletions

diff --git a/mp_core.h b/mp_core.h
index f1194d2454..4eac430263 100644
--- a/mp_core.h
+++ b/mp_core.h
@@ -159,6 +159,7 @@ typedef struct MPContext {
     /* timestamp of video frame currently visible on screen
      * (or at least queued to be flipped by VO) */
     double video_pts;
+    double last_seek_pts;
 
     // used to prevent hanging in some error cases
     unsigned int start_timestamp;