Replace all CODEC_ID_* with AV_CODEC_ID_*
[libav.git] / libavcodec / dvdsub_parser.c
1 /*
2 * DVD subtitle decoding
3 * Copyright (c) 2005 Fabrice Bellard
4 *
5 * This file is part of Libav.
6 *
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 #include "libavutil/intreadwrite.h"
23 #include "avcodec.h"
24
25 /* parser definition */
26 typedef struct DVDSubParseContext {
27 uint8_t *packet;
28 int packet_len;
29 int packet_index;
30 } DVDSubParseContext;
31
32 static av_cold int dvdsub_parse_init(AVCodecParserContext *s)
33 {
34 return 0;
35 }
36
37 static int dvdsub_parse(AVCodecParserContext *s,
38 AVCodecContext *avctx,
39 const uint8_t **poutbuf, int *poutbuf_size,
40 const uint8_t *buf, int buf_size)
41 {
42 DVDSubParseContext *pc = s->priv_data;
43
44 if (pc->packet_index == 0) {
45 if (buf_size < 2)
46 return 0;
47 pc->packet_len = AV_RB16(buf);
48 if (pc->packet_len == 0) /* HD-DVD subpicture packet */
49 pc->packet_len = AV_RB32(buf+2);
50 av_freep(&pc->packet);
51 pc->packet = av_malloc(pc->packet_len);
52 }
53 if (pc->packet) {
54 if (pc->packet_index + buf_size <= pc->packet_len) {
55 memcpy(pc->packet + pc->packet_index, buf, buf_size);
56 pc->packet_index += buf_size;
57 if (pc->packet_index >= pc->packet_len) {
58 *poutbuf = pc->packet;
59 *poutbuf_size = pc->packet_len;
60 pc->packet_index = 0;
61 return buf_size;
62 }
63 } else {
64 /* erroneous size */
65 pc->packet_index = 0;
66 }
67 }
68 *poutbuf = NULL;
69 *poutbuf_size = 0;
70 return buf_size;
71 }
72
73 static av_cold void dvdsub_parse_close(AVCodecParserContext *s)
74 {
75 DVDSubParseContext *pc = s->priv_data;
76 av_freep(&pc->packet);
77 }
78
79 AVCodecParser ff_dvdsub_parser = {
80 .codec_ids = { AV_CODEC_ID_DVD_SUBTITLE },
81 .priv_data_size = sizeof(DVDSubParseContext),
82 .parser_init = dvdsub_parse_init,
83 .parser_parse = dvdsub_parse,
84 .parser_close = dvdsub_parse_close,
85 };