- double in_pts_lower_as_frameno = (in_pts_lower - in_pts_origin) * output_framerate / TIMEBASE / speed;
- double in_pts_upper_as_frameno = (in_pts_upper - in_pts_origin) * output_framerate / TIMEBASE / speed;
- if (fabs(in_pts_lower_as_frameno - frameno) < 0.01) {
- destination->setFrame(stream_idx, in_pts_lower);
- if (video_stream != nullptr) {
- video_stream->schedule_original_frame(lrint(out_pts), stream_idx, in_pts_lower);
+ // TODO: Snap secondary (fade-to) clips in the same fashion.
+ bool snapped = false;
+ for (int64_t snap_pts : { frame_lower.pts, frame_upper.pts }) {
+ double snap_pts_as_frameno = (snap_pts - in_pts_origin) * output_framerate / TIMEBASE / speed;
+ if (fabs(snap_pts_as_frameno - frameno) < 0.01) {
+ FrameOnDisk snap_frame = frame_lower;
+ snap_frame.pts = snap_pts;
+ auto display_func = [this, primary_stream_idx, snap_frame, secondary_frame, fade_alpha]{
+ destination->setFrame(primary_stream_idx, snap_frame, secondary_frame, fade_alpha);
+ };
+ if (video_stream == nullptr) {
+ display_func();
+ } else {
+ if (secondary_stream_idx == -1) {
+ video_stream->schedule_original_frame(
+ next_frame_start, pts, display_func,
+ QueueSpotHolder(this), snap_frame);
+ } else {
+ assert(secondary_frame.pts != -1);
+ video_stream->schedule_faded_frame(
+ next_frame_start, pts, display_func, QueueSpotHolder(this),
+ snap_frame, secondary_frame, fade_alpha);
+ }
+ }
+ in_pts_origin += snap_pts - in_pts;
+ snapped = true;
+ break;