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 |
|
|
* MPL2 subtitles decoder |
24 |
|
|
* |
25 |
|
|
* @see http://web.archive.org/web/20090328040233/http://napisy.ussbrowarek.org/mpl2-eng.html |
26 |
|
|
*/ |
27 |
|
|
|
28 |
|
|
#include "avcodec.h" |
29 |
|
|
#include "ass.h" |
30 |
|
|
#include "libavutil/bprint.h" |
31 |
|
|
|
32 |
|
4 |
static int mpl2_event_to_ass(AVBPrint *buf, const char *p) |
33 |
|
|
{ |
34 |
✓✓ |
4 |
if (*p == ' ') |
35 |
|
2 |
p++; |
36 |
|
|
|
37 |
✓✓ |
13 |
while (*p) { |
38 |
|
9 |
int got_style = 0; |
39 |
|
|
|
40 |
✓✗✓✓
|
14 |
while (*p && strchr("/\\_", *p)) { |
41 |
✓✓ |
5 |
if (*p == '/') av_bprintf(buf, "{\\i1}"); |
42 |
✓✓ |
3 |
else if (*p == '\\') av_bprintf(buf, "{\\b1}"); |
43 |
✓✗ |
1 |
else if (*p == '_') av_bprintf(buf, "{\\u1}"); |
44 |
|
5 |
got_style = 1; |
45 |
|
5 |
p++; |
46 |
|
|
} |
47 |
|
|
|
48 |
✓✓✓✓
|
58 |
while (*p && *p != '|') { |
49 |
✓✗✓✗
|
49 |
if (*p != '\r' && *p != '\n') |
50 |
|
49 |
av_bprint_chars(buf, *p, 1); |
51 |
|
49 |
p++; |
52 |
|
|
} |
53 |
|
|
|
54 |
✓✓ |
9 |
if (*p == '|') { |
55 |
✓✓ |
5 |
if (got_style) |
56 |
|
3 |
av_bprintf(buf, "{\\r}"); |
57 |
|
5 |
av_bprintf(buf, "\\N"); |
58 |
|
5 |
p++; |
59 |
|
|
} |
60 |
|
|
} |
61 |
|
|
|
62 |
|
4 |
return 0; |
63 |
|
|
} |
64 |
|
|
|
65 |
|
4 |
static int mpl2_decode_frame(AVCodecContext *avctx, void *data, |
66 |
|
|
int *got_sub_ptr, AVPacket *avpkt) |
67 |
|
|
{ |
68 |
|
4 |
int ret = 0; |
69 |
|
|
AVBPrint buf; |
70 |
|
4 |
AVSubtitle *sub = data; |
71 |
|
4 |
const char *ptr = avpkt->data; |
72 |
|
4 |
FFASSDecoderContext *s = avctx->priv_data; |
73 |
|
|
|
74 |
|
4 |
av_bprint_init(&buf, 0, AV_BPRINT_SIZE_UNLIMITED); |
75 |
✓✗✓✗ ✓✗✓✗
|
4 |
if (ptr && avpkt->size > 0 && *ptr && !mpl2_event_to_ass(&buf, ptr)) |
76 |
|
4 |
ret = ff_ass_add_rect(sub, buf.str, s->readorder++, 0, NULL, NULL); |
77 |
|
4 |
av_bprint_finalize(&buf, NULL); |
78 |
✗✓ |
4 |
if (ret < 0) |
79 |
|
|
return ret; |
80 |
|
4 |
*got_sub_ptr = sub->num_rects > 0; |
81 |
|
4 |
return avpkt->size; |
82 |
|
|
} |
83 |
|
|
|
84 |
|
|
AVCodec ff_mpl2_decoder = { |
85 |
|
|
.name = "mpl2", |
86 |
|
|
.long_name = NULL_IF_CONFIG_SMALL("MPL2 subtitle"), |
87 |
|
|
.type = AVMEDIA_TYPE_SUBTITLE, |
88 |
|
|
.id = AV_CODEC_ID_MPL2, |
89 |
|
|
.decode = mpl2_decode_frame, |
90 |
|
|
.init = ff_ass_subtitle_header_default, |
91 |
|
|
.flush = ff_ass_decoder_flush, |
92 |
|
|
.priv_data_size = sizeof(FFASSDecoderContext), |
93 |
|
|
}; |