2 * Renderware TeXture Dictionary (.txd) demuxer
3 * Copyright (c) 2007 Ivo van Poorten
5 * This file is part of FFmpeg.
7 * FFmpeg 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.
12 * 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.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #include "libavutil/intreadwrite.h"
27 #define TXD_EXTRA 0x03
28 #define TXD_TEXTURE 0x15
29 #define TXD_TEXTURE_DATA 0x01
30 #define TXD_MARKER 0x1803ffff
31 #define TXD_MARKER2 0x1003ffff
33 static int txd_probe(AVProbeData
* pd
) {
34 if (AV_RL32(pd
->buf
) == TXD_FILE
&&
35 (AV_RL32(pd
->buf
+8) == TXD_MARKER
|| AV_RL32(pd
->buf
+8) == TXD_MARKER2
))
36 return AVPROBE_SCORE_MAX
;
40 static int txd_read_header(AVFormatContext
*s
, AVFormatParameters
*ap
) {
43 st
= av_new_stream(s
, 0);
45 return AVERROR(ENOMEM
);
46 st
->codec
->codec_type
= CODEC_TYPE_VIDEO
;
47 st
->codec
->codec_id
= CODEC_ID_TXD
;
48 st
->codec
->time_base
.den
= 5;
49 st
->codec
->time_base
.num
= 1;
50 /* the parameters will be extracted from the compressed bitstream */
54 static int txd_read_packet(AVFormatContext
*s
, AVPacket
*pkt
) {
55 ByteIOContext
*pb
= s
->pb
;
56 unsigned int id
, chunk_size
, marker
;
61 chunk_size
= get_le32(pb
);
62 marker
= get_le32(pb
);
66 if (marker
!= TXD_MARKER
&& marker
!= TXD_MARKER2
) {
67 av_log(NULL
, AV_LOG_ERROR
, "marker does not match\n");
76 url_fskip(s
->pb
, chunk_size
);
81 av_log(NULL
, AV_LOG_ERROR
, "unknown chunk id %i\n", id
);
85 ret
= av_get_packet(s
->pb
, pkt
, chunk_size
);
86 pkt
->stream_index
= 0;
88 return ret
<= 0 ? AVERROR(EIO
) : ret
;
91 AVInputFormat txd_demuxer
=
94 NULL_IF_CONFIG_SMALL("Renderware TeXture Dictionary"),