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
, "%*d:%*d:%*d.%*d%c", &c
) == 1 && strchr(": =", c
))
40 return AVPROBE_SCORE_MAX
;
44 static int64_t read_ts(char **line
)
47 int hh
, mm
, ss
, ms
, len
;
49 if (sscanf(*line
, "%d:%d:%d.%d%c%n",
50 &hh
, &mm
, &ss
, &ms
, &c
, &len
) >= 5) {
52 return (hh
*3600LL + mm
*60LL + ss
) * 100LL + ms
;
54 return AV_NOPTS_VALUE
;
57 static int vplayer_read_header(AVFormatContext
*s
)
59 VPlayerContext
*vplayer
= s
->priv_data
;
60 AVStream
*st
= avformat_new_stream(s
, NULL
);
63 return AVERROR(ENOMEM
);
64 avpriv_set_pts_info(st
, 64, 1, 100);
65 st
->codec
->codec_type
= AVMEDIA_TYPE_SUBTITLE
;
66 st
->codec
->codec_id
= AV_CODEC_ID_VPLAYER
;
68 while (!avio_feof(s
->pb
)) {
71 const int64_t pos
= avio_tell(s
->pb
);
72 int len
= ff_get_line(s
->pb
, line
, sizeof(line
));
78 line
[strcspn(line
, "\r\n")] = 0;
80 pts_start
= read_ts(&p
);
81 if (pts_start
!= AV_NOPTS_VALUE
) {
84 sub
= ff_subtitles_queue_insert(&vplayer
->q
, p
, strlen(p
), 0);
86 return AVERROR(ENOMEM
);
93 ff_subtitles_queue_finalize(&vplayer
->q
);
97 static int vplayer_read_packet(AVFormatContext
*s
, AVPacket
*pkt
)
99 VPlayerContext
*vplayer
= s
->priv_data
;
100 return ff_subtitles_queue_read_packet(&vplayer
->q
, pkt
);
103 static int vplayer_read_seek(AVFormatContext
*s
, int stream_index
,
104 int64_t min_ts
, int64_t ts
, int64_t max_ts
, int flags
)
106 VPlayerContext
*vplayer
= s
->priv_data
;
107 return ff_subtitles_queue_seek(&vplayer
->q
, s
, stream_index
,
108 min_ts
, ts
, max_ts
, flags
);
111 static int vplayer_read_close(AVFormatContext
*s
)
113 VPlayerContext
*vplayer
= s
->priv_data
;
114 ff_subtitles_queue_clean(&vplayer
->q
);
118 AVInputFormat ff_vplayer_demuxer
= {
120 .long_name
= NULL_IF_CONFIG_SMALL("VPlayer subtitles"),
121 .priv_data_size
= sizeof(VPlayerContext
),
122 .read_probe
= vplayer_probe
,
123 .read_header
= vplayer_read_header
,
124 .read_packet
= vplayer_read_packet
,
125 .read_seek2
= vplayer_read_seek
,
126 .read_close
= vplayer_read_close
,