2 * Copyright (c) 2012 Clément Bœsch
4 * This file is part of FFmpeg.
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 * VPlayer subtitles format demuxer
28 #include "subtitles.h"
31 FFDemuxSubtitlesQueue q;
34 static int vplayer_probe(AVProbeData *p)
37 const unsigned char *ptr = p->buf;
39 if ((sscanf(ptr, "%*3d:%*2d:%*2d.%*2d%c", &c) == 1 ||
40 sscanf(ptr, "%*3d:%*2d:%*2d%c", &c) == 1) && strchr(": =", c))
41 return AVPROBE_SCORE_MAX;
45 static int64_t read_ts(char **line)
48 int hh, mm, ss, ms, n, len;
50 if (((n = sscanf(*line, "%d:%d:%d.%d%c%n", &hh, &mm, &ss, &ms, &c, &len)) >= 5 ||
51 (n = sscanf(*line, "%d:%d:%d%c%n", &hh, &mm, &ss, &c, &len)) >= 4) && strchr(": =", c)) {
53 return (hh*3600LL + mm*60LL + ss) * 100LL + (n < 5 ? 0 : ms);
55 return AV_NOPTS_VALUE;
58 static int vplayer_read_header(AVFormatContext *s)
60 VPlayerContext *vplayer = s->priv_data;
61 AVStream *st = avformat_new_stream(s, NULL);
64 return AVERROR(ENOMEM);
65 avpriv_set_pts_info(st, 64, 1, 100);
66 st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
67 st->codecpar->codec_id = AV_CODEC_ID_VPLAYER;
69 while (!avio_feof(s->pb)) {
72 const int64_t pos = avio_tell(s->pb);
73 int len = ff_get_line(s->pb, line, sizeof(line));
79 line[strcspn(line, "\r\n")] = 0;
81 pts_start = read_ts(&p);
82 if (pts_start != AV_NOPTS_VALUE) {
85 sub = ff_subtitles_queue_insert(&vplayer->q, p, strlen(p), 0);
87 return AVERROR(ENOMEM);
94 ff_subtitles_queue_finalize(s, &vplayer->q);
98 static int vplayer_read_packet(AVFormatContext *s, AVPacket *pkt)
100 VPlayerContext *vplayer = s->priv_data;
101 return ff_subtitles_queue_read_packet(&vplayer->q, pkt);
104 static int vplayer_read_seek(AVFormatContext *s, int stream_index,
105 int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
107 VPlayerContext *vplayer = s->priv_data;
108 return ff_subtitles_queue_seek(&vplayer->q, s, stream_index,
109 min_ts, ts, max_ts, flags);
112 static int vplayer_read_close(AVFormatContext *s)
114 VPlayerContext *vplayer = s->priv_data;
115 ff_subtitles_queue_clean(&vplayer->q);
119 AVInputFormat ff_vplayer_demuxer = {
121 .long_name = NULL_IF_CONFIG_SMALL("VPlayer subtitles"),
122 .priv_data_size = sizeof(VPlayerContext),
123 .read_probe = vplayer_probe,
124 .read_header = vplayer_read_header,
125 .read_packet = vplayer_read_packet,
126 .read_seek2 = vplayer_read_seek,
127 .read_close = vplayer_read_close,