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Merge commit '150e99d694f33ab9ad678834964909aa315d14a1'

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* commit '150e99d694f33ab9ad678834964909aa315d14a1':
  rtsp: Factor out packet reading

Merged-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2017-10-03 21:34:08 -03:00
commit c244d4af43
1 changed files with 40 additions and 26 deletions
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66
libavformat/rtsp.c
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@ -2054,6 +2054,44 @@ static int pick_stream(AVFormatContext *s, RTSPStream **rtsp_st,
return AVERROR(EAGAIN);
}
static int read_packet(AVFormatContext *s,
RTSPStream **rtsp_st, RTSPStream *first_queue_st,
int64_t wait_end)
{
RTSPState *rt = s->priv_data;
int len;
switch(rt->lower_transport) {
default:
#if CONFIG_RTSP_DEMUXER
case RTSP_LOWER_TRANSPORT_TCP:
len = ff_rtsp_tcp_read_packet(s, rtsp_st, rt->recvbuf, RECVBUF_SIZE);
break;
#endif
case RTSP_LOWER_TRANSPORT_UDP:
case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
len = udp_read_packet(s, rtsp_st, rt->recvbuf, RECVBUF_SIZE, wait_end);
if (len > 0 && (*rtsp_st)->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
ff_rtp_check_and_send_back_rr((*rtsp_st)->transport_priv, (*rtsp_st)->rtp_handle, NULL, len);
break;
case RTSP_LOWER_TRANSPORT_CUSTOM:
if (first_queue_st && rt->transport == RTSP_TRANSPORT_RTP &&
wait_end && wait_end < av_gettime_relative())
len = AVERROR(EAGAIN);
else
len = avio_read_partial(s->pb, rt->recvbuf, RECVBUF_SIZE);
len = pick_stream(s, rtsp_st, rt->recvbuf, len);
if (len > 0 && (*rtsp_st)->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
ff_rtp_check_and_send_back_rr((*rtsp_st)->transport_priv, NULL, s->pb, len);
break;
}
if (len == 0)
return AVERROR_EOF;
return len;
}
int ff_rtsp_fetch_packet(AVFormatContext *s, AVPacket *pkt)
{
RTSPState *rt = s->priv_data;
@ -2118,30 +2156,7 @@ redo:
return AVERROR(ENOMEM);
}
switch(rt->lower_transport) {
default:
#if CONFIG_RTSP_DEMUXER
case RTSP_LOWER_TRANSPORT_TCP:
len = ff_rtsp_tcp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE);
break;
#endif
case RTSP_LOWER_TRANSPORT_UDP:
case RTSP_LOWER_TRANSPORT_UDP_MULTICAST:
len = udp_read_packet(s, &rtsp_st, rt->recvbuf, RECVBUF_SIZE, wait_end);
if (len > 0 && rtsp_st->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
ff_rtp_check_and_send_back_rr(rtsp_st->transport_priv, rtsp_st->rtp_handle, NULL, len);
break;
case RTSP_LOWER_TRANSPORT_CUSTOM:
if (first_queue_st && rt->transport == RTSP_TRANSPORT_RTP &&
wait_end && wait_end < av_gettime_relative())
len = AVERROR(EAGAIN);
else
len = avio_read_partial(s->pb, rt->recvbuf, RECVBUF_SIZE);
len = pick_stream(s, &rtsp_st, rt->recvbuf, len);
if (len > 0 && rtsp_st->transport_priv && rt->transport == RTSP_TRANSPORT_RTP)
ff_rtp_check_and_send_back_rr(rtsp_st->transport_priv, NULL, s->pb, len);
break;
}
len = read_packet(s, &rtsp_st, first_queue_st, wait_end);
if (len == AVERROR(EAGAIN) && first_queue_st &&
rt->transport == RTSP_TRANSPORT_RTP) {
av_log(s, AV_LOG_WARNING,
@ -2152,8 +2167,7 @@ redo:
}
if (len < 0)
return len;
if (len == 0)
return AVERROR_EOF;
if (rt->transport == RTSP_TRANSPORT_RDT) {
ret = ff_rdt_parse_packet(rtsp_st->transport_priv, pkt, &rt->recvbuf, len);
} else if (rt->transport == RTSP_TRANSPORT_RTP) {