FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/realtextdec.c
Date: 2021-09-24 20:55:06
Exec Total Coverage
Lines: 29 31 93.5%
Branches: 16 22 72.7%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2012 Clément Bœsch
3 *
4 * This file is part of FFmpeg.
5 *
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.
10 *
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.
15 *
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
19 */
20
21 /**
22 * @file
23 * RealText subtitle decoder
24 * @see http://service.real.com/help/library/guides/ProductionGuide/prodguide/htmfiles/realtext.htm
25 */
26
27 #include "avcodec.h"
28 #include "ass.h"
29 #include "internal.h"
30 #include "libavutil/avstring.h"
31 #include "libavutil/bprint.h"
32
33 5 static int rt_event_to_ass(AVBPrint *buf, const char *p)
34 {
35 5 int prev_chr_is_space = 1;
36
37
2/2
✓ Branch 0 taken 116 times.
✓ Branch 1 taken 5 times.
121 while (*p) {
38
2/2
✓ Branch 0 taken 107 times.
✓ Branch 1 taken 9 times.
116 if (*p != '<') {
39
2/2
✓ Branch 0 taken 85 times.
✓ Branch 1 taken 22 times.
107 if (!av_isspace(*p))
40 85 av_bprint_chars(buf, *p, 1);
41
2/2
✓ Branch 0 taken 20 times.
✓ Branch 1 taken 2 times.
22 else if (!prev_chr_is_space)
42 20 av_bprint_chars(buf, ' ', 1);
43 107 prev_chr_is_space = av_isspace(*p);
44 } else {
45 9 const char *end = strchr(p, '>');
46
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 9 times.
9 if (!end)
47 break;
48
3/4
✓ Branch 1 taken 5 times.
✓ Branch 2 taken 4 times.
✗ Branch 3 not taken.
✓ Branch 4 taken 5 times.
14 if (!av_strncasecmp(p, "<br/>", 5) ||
49 5 !av_strncasecmp(p, "<br>", 4)) {
50 4 av_bprintf(buf, "\\N");
51 }
52 9 p = end;
53 }
54 116 p++;
55 }
56 5 return 0;
57 }
58
59 5 static int realtext_decode_frame(AVCodecContext *avctx,
60 void *data, int *got_sub_ptr, AVPacket *avpkt)
61 {
62 5 int ret = 0;
63 5 AVSubtitle *sub = data;
64 5 const char *ptr = avpkt->data;
65 5 FFASSDecoderContext *s = avctx->priv_data;
66 AVBPrint buf;
67
68 5 av_bprint_init(&buf, 0, 4096);
69
3/6
✓ Branch 0 taken 5 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 5 times.
✗ Branch 3 not taken.
✓ Branch 5 taken 5 times.
✗ Branch 6 not taken.
5 if (ptr && avpkt->size > 0 && !rt_event_to_ass(&buf, ptr))
70 5 ret = ff_ass_add_rect(sub, buf.str, s->readorder++, 0, NULL, NULL);
71 5 av_bprint_finalize(&buf, NULL);
72
1/2
✗ Branch 0 not taken.
✓ Branch 1 taken 5 times.
5 if (ret < 0)
73 return ret;
74 5 *got_sub_ptr = sub->num_rects > 0;
75 5 return avpkt->size;
76 }
77
78 const AVCodec ff_realtext_decoder = {
79 .name = "realtext",
80 .long_name = NULL_IF_CONFIG_SMALL("RealText subtitle"),
81 .type = AVMEDIA_TYPE_SUBTITLE,
82 .id = AV_CODEC_ID_REALTEXT,
83 .decode = realtext_decode_frame,
84 .init = ff_ass_subtitle_header_default,
85 .flush = ff_ass_decoder_flush,
86 .priv_data_size = sizeof(FFASSDecoderContext),
87 .caps_internal = FF_CODEC_CAP_INIT_THREADSAFE,
88 };
89