Revision cb631737

View differences:

libavformat/Makefile
131 131
OBJS-$(CONFIG_THP_DEMUXER)               += thp.o
132 132
OBJS-$(CONFIG_TIERTEXSEQ_DEMUXER)        += tiertexseq.o
133 133
OBJS-$(CONFIG_TTA_DEMUXER)               += tta.o
134
OBJS-$(CONFIG_TXD_DEMUXER)               += txd.o
134 135
OBJS-$(CONFIG_V4L2_DEMUXER)              += v4l2.o
135 136
OBJS-$(CONFIG_VIDEO_GRAB_BKTR_DEMUXER)   += grab_bktr.o
136 137
OBJS-$(CONFIG_VIDEO_GRAB_V4L_DEMUXER)    += grab.o
libavformat/allformats.c
150 150
    REGISTER_DEMUXER (THP, thp);
151 151
    REGISTER_DEMUXER (TIERTEXSEQ, tiertexseq);
152 152
    REGISTER_DEMUXER (TTA, tta);
153
    REGISTER_DEMUXER (TXD, txd);
153 154
    REGISTER_DEMUXER (V4L2, v4l2);
154 155
    REGISTER_DEMUXER (VC1, vc1);
155 156
    REGISTER_DEMUXER (VIDEO_GRAB_BKTR, video_grab_bktr);
libavformat/allformats.h
100 100
extern AVInputFormat thp_demuxer;
101 101
extern AVInputFormat tiertexseq_demuxer;
102 102
extern AVInputFormat tta_demuxer;
103
extern AVInputFormat txd_demuxer;
103 104
extern AVInputFormat v4l2_demuxer;
104 105
extern AVInputFormat vc1_demuxer;
105 106
extern AVInputFormat video_grab_bktr_demuxer;
libavformat/txd.c
1
/*
2
 * Renderware TeXture Dictionary (.txd) demuxer
3
 * Copyright (c) 2007 Ivo van Poorten
4
 *
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 * This file is part of FFmpeg.
6
 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
10
 * version 2.1 of the License, or (at your option) any later version.
11
 *
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 * FFmpeg 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
 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 */
21

  
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#include "avformat.h"
23

  
24
#define TXD_FILE            0x16
25
#define TXD_INFO            0x01
26
#define TXD_EXTRA           0x03
27
#define TXD_TEXTURE         0x15
28
#define TXD_TEXTURE_DATA    0x01
29
#define TXD_MARKER          0x1803ffff
30
#define TXD_MARKER2         0x1003ffff
31

  
32
static int txd_probe(AVProbeData * pd) {
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    if (AV_RL32(pd->buf  ) == TXD_FILE &&
34
       (AV_RL32(pd->buf+8) == TXD_MARKER || AV_RL32(pd->buf+8) == TXD_MARKER2))
35
        return AVPROBE_SCORE_MAX;
36
    return 0;
37
}
38

  
39
static int txd_read_header(AVFormatContext *s, AVFormatParameters *ap) {
40
    AVStream *st;
41

  
42
    st = av_new_stream(s, 0);
43
    if (!st)
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        return AVERROR_NOMEM;
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    st->codec->codec_type = CODEC_TYPE_VIDEO;
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    st->codec->codec_id = CODEC_ID_TXD;
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    st->codec->time_base.den = 5;
48
    st->codec->time_base.num = 1;
49
    /* the parameters will be extracted from the compressed bitstream */
50
    return 0;
51
}
52

  
53
static int txd_read_packet(AVFormatContext *s, AVPacket *pkt) {
54
    ByteIOContext *pb = &s->pb;
55
    unsigned int id, chunk_size, marker;
56
    int ret;
57

  
58
next_chunk:
59
    id         = get_le32(pb);
60
    chunk_size = get_le32(pb);
61
    marker     = get_le32(pb);
62

  
63
    if (url_feof(&s->pb))
64
        return AVERROR_IO;
65
    if (marker != TXD_MARKER && marker != TXD_MARKER2) {
66
        av_log(NULL, AV_LOG_ERROR, "marker does not match\n");
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        return AVERROR_IO;
68
    }
69

  
70
    switch (id) {
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        case TXD_INFO:
72
            if (chunk_size > 100)
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                break;
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        case TXD_EXTRA:
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            url_fskip(&s->pb, chunk_size);
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        case TXD_FILE:
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        case TXD_TEXTURE:
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            goto next_chunk;
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        default:
80
            av_log(NULL, AV_LOG_ERROR, "unknown chunk id %i\n", id);
81
            return AVERROR_IO;
82
    }
83

  
84
    ret = av_get_packet(&s->pb, pkt, chunk_size);
85
    pkt->stream_index = 0;
86

  
87
    return ret <= 0 ? AVERROR_IO : ret;
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}
89

  
90
static int txd_read_close(AVFormatContext *s) {
91
    return 0;
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}
93

  
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AVInputFormat txd_demuxer =
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{
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    "txd",
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    "txd format",
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    0,
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    txd_probe,
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    txd_read_header,
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    txd_read_packet,
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    txd_read_close,
103
};

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