From 150c9823e71a161e97003849cf8b2f55b21520bd Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Mon, 26 Aug 2013 15:10:18 +0100
Subject: adding ffmpeg specific version

---
 ffmpeg1/libavformat/txd.c | 100 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100644 ffmpeg1/libavformat/txd.c

(limited to 'ffmpeg1/libavformat/txd.c')

diff --git a/ffmpeg1/libavformat/txd.c b/ffmpeg1/libavformat/txd.c
new file mode 100644
index 0000000..194945b
--- /dev/null
+++ b/ffmpeg1/libavformat/txd.c
@@ -0,0 +1,100 @@
+/*
+ * Renderware TeXture Dictionary (.txd) demuxer
+ * Copyright (c) 2007 Ivo van Poorten
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "avformat.h"
+
+#define TXD_FILE            0x16
+#define TXD_INFO            0x01
+#define TXD_EXTRA           0x03
+#define TXD_TEXTURE         0x15
+#define TXD_TEXTURE_DATA    0x01
+#define TXD_MARKER          0x1803ffff
+#define TXD_MARKER2         0x1003ffff
+
+static int txd_probe(AVProbeData * pd) {
+    if (AV_RL32(pd->buf  ) == TXD_FILE &&
+       (AV_RL32(pd->buf+8) == TXD_MARKER || AV_RL32(pd->buf+8) == TXD_MARKER2))
+        return AVPROBE_SCORE_MAX;
+    return 0;
+}
+
+static int txd_read_header(AVFormatContext *s) {
+    AVStream *st;
+
+    st = avformat_new_stream(s, NULL);
+    if (!st)
+        return AVERROR(ENOMEM);
+    st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
+    st->codec->codec_id = AV_CODEC_ID_TXD;
+    st->codec->time_base.den = 5;
+    st->codec->time_base.num = 1;
+    /* the parameters will be extracted from the compressed bitstream */
+
+    return 0;
+}
+
+static int txd_read_packet(AVFormatContext *s, AVPacket *pkt) {
+    AVIOContext *pb = s->pb;
+    unsigned int id, chunk_size, marker;
+    int ret;
+
+next_chunk:
+    id         = avio_rl32(pb);
+    chunk_size = avio_rl32(pb);
+    marker     = avio_rl32(pb);
+
+    if (url_feof(s->pb))
+        return AVERROR_EOF;
+    if (marker != TXD_MARKER && marker != TXD_MARKER2) {
+        av_log(s, AV_LOG_ERROR, "marker does not match\n");
+        return AVERROR_INVALIDDATA;
+    }
+
+    switch (id) {
+    case TXD_INFO:
+        if (chunk_size > 100)
+            break;
+    case TXD_EXTRA:
+        avio_skip(s->pb, chunk_size);
+    case TXD_FILE:
+    case TXD_TEXTURE:
+        goto next_chunk;
+    default:
+        av_log(s, AV_LOG_ERROR, "unknown chunk id %i\n", id);
+        return AVERROR_INVALIDDATA;
+    }
+
+    ret = av_get_packet(s->pb, pkt, chunk_size);
+    if (ret < 0)
+        return ret;
+    pkt->stream_index = 0;
+
+    return 0;
+}
+
+AVInputFormat ff_txd_demuxer = {
+    .name        = "txd",
+    .long_name   = NULL_IF_CONFIG_SMALL("Renderware TeXture Dictionary"),
+    .read_probe  = txd_probe,
+    .read_header = txd_read_header,
+    .read_packet = txd_read_packet,
+};
-- 
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