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Properly flush packet queues when at EOF

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Note: the previous flush method was renamed to clear. Flushing a queue allows
consumers to retrieve queued packets, but not expect any more to come in.
This commit is contained in:
Chris Robinson 2012-12-16 05:50:20 -08:00
parent 6bc526b74d
commit c92cde2be9
1 changed files with 15 additions and 2 deletions
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17
apps/openmw/mwrender/videoplayer.cpp
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@ -29,12 +29,13 @@ enum {
struct PacketQueue {
PacketQueue()
: first_pkt(NULL), last_pkt(NULL), nb_packets(0), size(0)
: first_pkt(NULL), last_pkt(NULL), flushing(false), nb_packets(0), size(0)
{ }
~PacketQueue()
{ flush(); }
{ clear(); }
AVPacketList *first_pkt, *last_pkt;
volatile bool flushing;
int nb_packets;
int size;
@ -45,6 +46,7 @@ struct PacketQueue {
int get(AVPacket *pkt, VideoState *is);
void flush();
void clear();
};
struct VideoPicture {
@ -202,6 +204,8 @@ int PacketQueue::get(AVPacket *pkt, VideoState *is)
return 1;
}
if(this->flushing)
break;
this->cond.wait(lock);
}
@ -209,6 +213,12 @@ int PacketQueue::get(AVPacket *pkt, VideoState *is)
}
void PacketQueue::flush()
{
this->flushing = true;
this->cond.notify_one();
}
void PacketQueue::clear()
{
AVPacketList *pkt, *pkt1;
@ -753,7 +763,10 @@ void VideoState::decode_thread_loop(VideoState *self)
else
av_free_packet(packet);
}
/* all done - wait for it */
self->videoq.flush();
self->audioq.flush();
while(!self->quit)
{
// EOF reached, all packets processed, we can exit now