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-rw-r--r--libavformat/vplayerdec.c128
1 files changed, 128 insertions, 0 deletions
diff --git a/libavformat/vplayerdec.c b/libavformat/vplayerdec.c
new file mode 100644
index 0000000000..73a48dbdc5
--- /dev/null
+++ b/libavformat/vplayerdec.c
@@ -0,0 +1,128 @@
+/*
+ * Copyright (c) 2012 Clément Bœsch
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * VPlayer subtitles format demuxer
+ */
+
+#include "avformat.h"
+#include "internal.h"
+#include "subtitles.h"
+
+typedef struct {
+ FFDemuxSubtitlesQueue q;
+} VPlayerContext;
+
+static int vplayer_probe(AVProbeData *p)
+{
+ char c;
+ const unsigned char *ptr = p->buf;
+
+ if (sscanf(ptr, "%*d:%*d:%*d.%*d%c", &c) == 1 && strchr(": =", c))
+ return AVPROBE_SCORE_MAX;
+ return 0;
+}
+
+static int64_t read_ts(char **line)
+{
+ char c;
+ int hh, mm, ss, ms, len;
+
+ if (sscanf(*line, "%d:%d:%d.%d%c%n",
+ &hh, &mm, &ss, &ms, &c, &len) >= 5) {
+ *line += len;
+ return (hh*3600LL + mm*60LL + ss) * 100LL + ms;
+ }
+ return AV_NOPTS_VALUE;
+}
+
+static int vplayer_read_header(AVFormatContext *s)
+{
+ VPlayerContext *vplayer = s->priv_data;
+ AVStream *st = avformat_new_stream(s, NULL);
+
+ if (!st)
+ return AVERROR(ENOMEM);
+ avpriv_set_pts_info(st, 64, 1, 100);
+ st->codec->codec_type = AVMEDIA_TYPE_SUBTITLE;
+ st->codec->codec_id = AV_CODEC_ID_VPLAYER;
+
+ while (!url_feof(s->pb)) {
+ char line[4096];
+ char *p = line;
+ const int64_t pos = avio_tell(s->pb);
+ int len = ff_get_line(s->pb, line, sizeof(line));
+ int64_t pts_start;
+
+ if (!len)
+ break;
+
+ line[strcspn(line, "\r\n")] = 0;
+
+ pts_start = read_ts(&p);
+ if (pts_start != AV_NOPTS_VALUE) {
+ AVPacket *sub;
+
+ sub = ff_subtitles_queue_insert(&vplayer->q, p, strlen(p), 0);
+ if (!sub)
+ return AVERROR(ENOMEM);
+ sub->pos = pos;
+ sub->pts = pts_start;
+ sub->duration = -1;
+ }
+ }
+
+ ff_subtitles_queue_finalize(&vplayer->q);
+ return 0;
+}
+
+static int vplayer_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+ VPlayerContext *vplayer = s->priv_data;
+ return ff_subtitles_queue_read_packet(&vplayer->q, pkt);
+}
+
+static int vplayer_read_seek(AVFormatContext *s, int stream_index,
+ int64_t min_ts, int64_t ts, int64_t max_ts, int flags)
+{
+ VPlayerContext *vplayer = s->priv_data;
+ return ff_subtitles_queue_seek(&vplayer->q, s, stream_index,
+ min_ts, ts, max_ts, flags);
+}
+
+static int vplayer_read_close(AVFormatContext *s)
+{
+ VPlayerContext *vplayer = s->priv_data;
+ ff_subtitles_queue_clean(&vplayer->q);
+ return 0;
+}
+
+AVInputFormat ff_vplayer_demuxer = {
+ .name = "vplayer",
+ .long_name = NULL_IF_CONFIG_SMALL("VPlayer subtitles"),
+ .priv_data_size = sizeof(VPlayerContext),
+ .read_probe = vplayer_probe,
+ .read_header = vplayer_read_header,
+ .read_packet = vplayer_read_packet,
+ .read_seek2 = vplayer_read_seek,
+ .read_close = vplayer_read_close,
+ .extensions = "txt",
+};