[mythtv-commits] Ticket #10658: Rework AVFRingBuffer to return -EAGAIN when there is no data

[MythTV]

#10658: Rework AVFRingBuffer to return -EAGAIN when there is no data
------------------------------+-----------------------------
 Reporter:  danielk           |          Owner:  danielk
     Type:  Developer Task    |         Status:  accepted
 Priority:  minor             |      Milestone:  0.27
Component:  MythTV - General  |        Version:  Master Head
 Severity:  medium            |     Resolution:
 Keywords:                    |  Ticket locked:  0
------------------------------+-----------------------------

Comment (by danielk):

 With some debugging I've discovered that if you return -EAGAIN a number of
 times to libav it will mark the stream as having hit EOF. Even if you
 later reset the EOF flag any partially decoded data will be chucked by
 libav.

 This means this solution is unworkable as is. However, we can still return
 partial reads as long as we avoid returning zero byte reads or -EAGAIN
 reads.

-- 
Ticket URL: <http://code.mythtv.org/trac/ticket/10658#comment:3>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center