ffplay: remove remains of video_clock

We are now using a pts based approach, libavutil/libavcodec should provide the
correct pts-es anyway. This also fixes an issue when seeking to a frame with a
pts set to zero.
Signed-off-by: Marton Balint <cus@passwd.hu>

ffplay.c

@@ -231,11 +231,10 @@ typedef struct VideoState {
     double frame_last_returned_time;
     double frame_last_filter_delay;
     int64_t frame_last_dropped_pos;
-    double video_clock;             // pts of last decoded frame / predicted pts of next decoded frame
     int video_stream;
     AVStream *video_st;
     PacketQueue videoq;
-    double video_current_pts;       // current displayed pts (different from video_clock if frame fifos are used)
+    double video_current_pts;       // current displayed pts
     double video_current_pts_drift; // video_current_pts - time (av_gettime) at which we updated video_current_pts - used to have running video pts
     int64_t video_current_pos;      // current displayed file pos
     double max_frame_duration;      // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity
@@ -1503,29 +1502,13 @@ static void duplicate_right_border_pixels(SDL_Overlay *bmp) {
     }
 }
 
-static int queue_picture(VideoState *is, AVFrame *src_frame, double pts1, int64_t pos, int serial)
+static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, int64_t pos, int serial)
 {
     VideoPicture *vp;
-    double frame_delay, pts = pts1;
-
-    /* compute the exact PTS for the picture if it is omitted in the stream
-     * pts1 is the dts of the pkt / pts of the frame */
-    if (pts != 0) {
-        /* update video clock with pts, if present */
-        is->video_clock = pts;
-    } else {
-        pts = is->video_clock;
-    }
-    /* update video clock for next frame */
-    frame_delay = av_q2d(is->video_st->codec->time_base);
-    /* for MPEG2, the frame can be repeated, so we update the
-       clock accordingly */
-    frame_delay += src_frame->repeat_pict * (frame_delay * 0.5);
-    is->video_clock += frame_delay;
 
 #if defined(DEBUG_SYNC) && 0
-    printf("frame_type=%c clock=%0.3f pts=%0.3f\n",
-           av_get_picture_type_char(src_frame->pict_type), pts, pts1);
+    printf("frame_type=%c pts=%0.3f\n",
+           av_get_picture_type_char(src_frame->pict_type), pts);
 #endif
 
     /* wait until we have space to put a new picture */
@@ -2062,9 +2045,9 @@ static int synchronize_audio(VideoState *is, int nb_samples)
                     max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
                     wanted_nb_samples = FFMIN(FFMAX(wanted_nb_samples, min_nb_samples), max_nb_samples);
                 }
-                av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f vpts=%0.3f %f\n",
+                av_dlog(NULL, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n",
                         diff, avg_diff, wanted_nb_samples - nb_samples,
-                        is->audio_clock, is->video_clock, is->audio_diff_threshold);
+                        is->audio_clock, is->audio_diff_threshold);
             }
         } else {
             /* too big difference : may be initial PTS errors, so