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mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-20 22:41:11 +00:00
ffmpeg/libavformat/txd.c
Michael Niedermayer e37f161e66 Merge remote-tracking branch 'qatar/master'
* qatar/master: (71 commits)
  movenc: Allow writing to a non-seekable output if using empty moov
  movenc: Support adding isml (smooth streaming live) metadata
  libavcodec: Don't crash in avcodec_encode_audio if time_base isn't set
  sunrast: Document the different Sun Raster file format types.
  sunrast: Add a check for experimental type.
  libspeexenc: use AVSampleFormat instead of deprecated/removed SampleFormat
  lavf: remove disabled FF_API_SET_PTS_INFO cruft
  lavf: remove disabled FF_API_OLD_INTERRUPT_CB cruft
  lavf: remove disabled FF_API_REORDER_PRIVATE cruft
  lavf: remove disabled FF_API_SEEK_PUBLIC cruft
  lavf: remove disabled FF_API_STREAM_COPY cruft
  lavf: remove disabled FF_API_PRELOAD cruft
  lavf: remove disabled FF_API_NEW_STREAM cruft
  lavf: remove disabled FF_API_RTSP_URL_OPTIONS cruft
  lavf: remove disabled FF_API_MUXRATE cruft
  lavf: remove disabled FF_API_FILESIZE cruft
  lavf: remove disabled FF_API_TIMESTAMP cruft
  lavf: remove disabled FF_API_LOOP_OUTPUT cruft
  lavf: remove disabled FF_API_LOOP_INPUT cruft
  lavf: remove disabled FF_API_AVSTREAM_QUALITY cruft
  ...

Conflicts:
	doc/APIchanges
	libavcodec/8bps.c
	libavcodec/avcodec.h
	libavcodec/libx264.c
	libavcodec/mjpegbdec.c
	libavcodec/options.c
	libavcodec/sunrast.c
	libavcodec/utils.c
	libavcodec/version.h
	libavcodec/x86/h264_deblock.asm
	libavdevice/libdc1394.c
	libavdevice/v4l2.c
	libavformat/avformat.h
	libavformat/avio.c
	libavformat/avio.h
	libavformat/aviobuf.c
	libavformat/dv.c
	libavformat/mov.c
	libavformat/utils.c
	libavformat/version.h
	libavformat/wtv.c
	libavutil/Makefile
	libavutil/file.c
	libswscale/x86/input.asm
	libswscale/x86/swscale_mmx.c
	libswscale/x86/swscale_template.c
	tests/ref/lavf/ffm

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-01-28 07:53:34 +01:00

101 lines
2.9 KiB
C

/*
* 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 = 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,
};