[FFmpeg-devel] [PATCH 1/3] ffplay: reimplement early frame drop

Marton Balint cus at passwd.hu
Mon Oct 24 23:17:13 CEST 2011

On Sat, 22 Oct 2011, Michael Niedermayer wrote:

> On Fri, Oct 21, 2011 at 11:33:21PM +0200, Marton Balint wrote:
>> This patch reimplements early frame drop, it is now based on the current
>> difference between the master clock and the video clock, and the pts of the
>> current and the last displayed (or skipped) frame.  If the frame to be added to
>> the queue is late after decoding, then we drop it early because later we would
>> drop it anyway (unless it is the only frame in the picture queue).
>> The current approach has only one downside that I know of, it does not handle
>> well when the filters are changing significantly the pts of the frames, because
>> we compare pts values from filtered and unfiltered frames.
>> We also start using the pictq_mutex to ensure consistent video_current_pts,
>> video_current_pts_drift, frame_last_pts, frame_last_dropped_pts and
>> frame_last_dropped_pos values.
> the patches work fine, thanks for looking into this

Great, I pushed the patches to my stable branch.


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