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ffplay: ensure that we buffer at least 1 second of content 

In order to do that, we keep track of the total duration of packets in a packet
queue.

Signed-off-by: Marton Balint <cus@passwd.hu>
This commit is contained in:
Marton Balint 2016-06-11 12:11:11 +02:00
parent 8594a8fbf9
commit e32857f30e
1 changed files with 5 additions and 1 deletions
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6
ffplay.c
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@ -117,6 +117,7 @@ typedef struct PacketQueue {
MyAVPacketList *first_pkt, *last_pkt;
int nb_packets;
int size;
int64_t duration;
int abort_request;
int serial;
SDL_mutex *mutex;
@ -417,6 +418,7 @@ static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
q->last_pkt = pkt1;
q->nb_packets++;
q->size += pkt1->pkt.size + sizeof(*pkt1);
q->duration += pkt1->pkt.duration;
/* XXX: should duplicate packet data in DV case */
SDL_CondSignal(q->cond);
return 0;
@ -478,6 +480,7 @@ static void packet_queue_flush(PacketQueue *q)
q->first_pkt = NULL;
q->nb_packets = 0;
q->size = 0;
q->duration = 0;
SDL_UnlockMutex(q->mutex);
}
@ -528,6 +531,7 @@ static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *seria
q->last_pkt = NULL;
q->nb_packets--;
q->size -= pkt1->pkt.size + sizeof(*pkt1);
q->duration -= pkt1->pkt.duration;
*pkt = pkt1->pkt;
if (serial)
*serial = pkt1->serial;
@ -2800,7 +2804,7 @@ static int stream_has_enough_packets(AVStream *st, int stream_id, PacketQueue *q
return stream_id < 0 ||
queue->abort_request ||
(st->disposition & AV_DISPOSITION_ATTACHED_PIC) ||
queue->nb_packets > MIN_FRAMES;
queue->nb_packets > MIN_FRAMES && (!queue->duration || av_q2d(st->time_base) * queue->duration > 1.0);
}
static int is_realtime(AVFormatContext *s)