diff options
-rw-r--r-- | libavformat/Makefile | 1 | ||||
-rw-r--r-- | libavformat/allformats.c | 1 | ||||
-rw-r--r-- | libavformat/allformats.h | 1 | ||||
-rw-r--r-- | libavformat/txd.c | 103 |
4 files changed, 106 insertions, 0 deletions
diff --git a/libavformat/Makefile b/libavformat/Makefile index 639f7cc2aa..256bd9e4e2 100644 --- a/libavformat/Makefile +++ b/libavformat/Makefile @@ -131,6 +131,7 @@ OBJS-$(CONFIG_TGP_MUXER) += movenc.o riff.o isom.o OBJS-$(CONFIG_THP_DEMUXER) += thp.o OBJS-$(CONFIG_TIERTEXSEQ_DEMUXER) += tiertexseq.o OBJS-$(CONFIG_TTA_DEMUXER) += tta.o +OBJS-$(CONFIG_TXD_DEMUXER) += txd.o OBJS-$(CONFIG_V4L2_DEMUXER) += v4l2.o OBJS-$(CONFIG_VIDEO_GRAB_BKTR_DEMUXER) += grab_bktr.o OBJS-$(CONFIG_VIDEO_GRAB_V4L_DEMUXER) += grab.o diff --git a/libavformat/allformats.c b/libavformat/allformats.c index 117d6f719d..276e4aca71 100644 --- a/libavformat/allformats.c +++ b/libavformat/allformats.c @@ -150,6 +150,7 @@ void av_register_all(void) REGISTER_DEMUXER (THP, thp); REGISTER_DEMUXER (TIERTEXSEQ, tiertexseq); REGISTER_DEMUXER (TTA, tta); + REGISTER_DEMUXER (TXD, txd); REGISTER_DEMUXER (V4L2, v4l2); REGISTER_DEMUXER (VC1, vc1); REGISTER_DEMUXER (VIDEO_GRAB_BKTR, video_grab_bktr); diff --git a/libavformat/allformats.h b/libavformat/allformats.h index 543fd3358d..698941e480 100644 --- a/libavformat/allformats.h +++ b/libavformat/allformats.h @@ -100,6 +100,7 @@ extern AVInputFormat swf_demuxer; extern AVInputFormat thp_demuxer; extern AVInputFormat tiertexseq_demuxer; extern AVInputFormat tta_demuxer; +extern AVInputFormat txd_demuxer; extern AVInputFormat v4l2_demuxer; extern AVInputFormat vc1_demuxer; extern AVInputFormat video_grab_bktr_demuxer; diff --git a/libavformat/txd.c b/libavformat/txd.c new file mode 100644 index 0000000000..19febd160c --- /dev/null +++ b/libavformat/txd.c @@ -0,0 +1,103 @@ +/* + * 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 "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, AVFormatParameters *ap) { + AVStream *st; + + st = av_new_stream(s, 0); + if (!st) + return AVERROR_NOMEM; + st->codec->codec_type = CODEC_TYPE_VIDEO; + st->codec->codec_id = 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) { + ByteIOContext *pb = &s->pb; + unsigned int id, chunk_size, marker; + int ret; + +next_chunk: + id = get_le32(pb); + chunk_size = get_le32(pb); + marker = get_le32(pb); + + if (url_feof(&s->pb)) + return AVERROR_IO; + if (marker != TXD_MARKER && marker != TXD_MARKER2) { + av_log(NULL, AV_LOG_ERROR, "marker does not match\n"); + return AVERROR_IO; + } + + switch (id) { + case TXD_INFO: + if (chunk_size > 100) + break; + case TXD_EXTRA: + url_fskip(&s->pb, chunk_size); + case TXD_FILE: + case TXD_TEXTURE: + goto next_chunk; + default: + av_log(NULL, AV_LOG_ERROR, "unknown chunk id %i\n", id); + return AVERROR_IO; + } + + ret = av_get_packet(&s->pb, pkt, chunk_size); + pkt->stream_index = 0; + + return ret <= 0 ? AVERROR_IO : ret; +} + +static int txd_read_close(AVFormatContext *s) { + return 0; +} + +AVInputFormat txd_demuxer = +{ + "txd", + "txd format", + 0, + txd_probe, + txd_read_header, + txd_read_packet, + txd_read_close, +}; |