1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
Copyright (C) 2026 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "dcpomatic_log.h"
#include "subtitle_sync_packet_queue.h"
extern "C" {
#include <libavcodec/packet.h>
#include <libavutil/avutil.h>
}
#include <iostream>
using boost::optional;
void
SubtitleSyncPacketQueue::add(AVPacket* packet, Type type)
{
switch (type) {
case Type::VIDEO:
++_num_video;
_other.push_back({packet, type});
break;
case Type::AUDIO:
_other.push_back({packet, type});
break;
case Type::DROP:
_other.push_back({PacketInfo(packet), type});
av_packet_free(&packet);
break;
case Type::SUBTITLE:
_subtitle.push_back(packet);
break;
}
}
optional<std::pair<PacketQueue::Packet, PacketQueue::Type>>
SubtitleSyncPacketQueue::get(bool flushing)
{
if (!_subtitle.empty()) {
/* Any subtitle packets we have get returned first */
auto packet = _subtitle.front();
_subtitle.pop_front();
return std::make_pair(Packet(packet), Type::SUBTITLE);
}
if (_other.size() > 4096) {
LOG_WARNING("SubtitleSyncPacketQueue is getting large: {} (_num_video={})", _other.size(), _num_video);
}
if ((!flushing && _num_video < 48 && _other.size() < 8192) || _other.empty()) {
/* We haven't queued up enough video yet, or we don't have anything */
return boost::none;
}
auto packet = _other.front();
if (packet.second == Type::VIDEO) {
--_num_video;
}
_other.pop_front();
return packet;
}
void
SubtitleSyncPacketQueue::clear()
{
for (auto i: _other) {
if (auto packet = boost::get<AVPacket*>(&i.first)) {
av_packet_free(packet);
}
}
for (auto i: _subtitle) {
av_packet_free(&i);
}
_other.clear();
_subtitle.clear();
_num_video = 0;
}
|
