@@ -61,6 +61,7 @@ version <next>

 - WavPack lossless audio decoder

 - Targa (.TGA) picture decoder

 - Delphine Software .cin demuxer/audio and video decoder

+- Tiertex .seq demuxer/video decoder

 version 0.4.9-pre1:

@@ -740,6 +740,8 @@ library:

 @tab Multimedia format used by Delphine Software games.

 @item MXF @tab    @tab X

 @tab Material eXchange Format SMPTE 377M, used by D-Cinema, broadcast industry.

+@item SEQ @tab    @tab X

+@tab Tiertex .seq files used in the DOS CDROM version of the game Flashback.

 @end multitable

 @code{X} means that encoding (resp. decoding) is supported.

@@ -843,6 +845,7 @@ following image formats are supported:

 @item KMVC                   @tab     @tab  X @tab Codec used in Worms games.

 @item VMware Video           @tab     @tab  X @tab Codec used in videos captured by VMware.

 @item Cin Video              @tab     @tab  X @tab Codec used in Delphine Software games.

+@item Tiertex Seq Video      @tab     @tab  X @tab Codec used in DOS CDROM FlashBack game.

 @end multitable

 @code{X} means that encoding (resp. decoding) is supported.

@@ -146,6 +146,7 @@ OBJS-$(CONFIG_VCR1_ENCODER)            += vcr1.o

 OBJS-$(CONFIG_VMDAUDIO_DECODER)        += vmdav.o

 OBJS-$(CONFIG_VMDVIDEO_DECODER)        += vmdav.o

 OBJS-$(CONFIG_VMNC_DECODER)            += vmnc.o

+OBJS-$(CONFIG_TIERTEXSEQVIDEO_DECODER) += tiertexseqv.o

 OBJS-$(CONFIG_VORBIS_DECODER)          += vorbis.o vorbis_data.o

 OBJS-$(CONFIG_VORBIS_ENCODER)          += vorbis_enc.o vorbis_data.o

 OBJS-$(CONFIG_VP3_DECODER)             += vp3.o

@@ -554,6 +554,9 @@ void avcodec_register_all(void)

 #ifdef CONFIG_DSICINAUDIO_DECODER

     register_avcodec(&dsicinaudio_decoder);

 #endif //CONFIG_DSICINAUDIO_DECODER

+#ifdef CONFIG_TIERTEXSEQVIDEO_DECODER

+    register_avcodec(&tiertexseqvideo_decoder);

+#endif //CONFIG_TIERTEXSEQVIDEO_DECODER

 #if defined(CONFIG_AMR_NB) || defined(CONFIG_AMR_NB_FIXED)

 #ifdef CONFIG_AMR_NB_DECODER

@@ -37,8 +37,8 @@ extern "C" {

 #define AV_STRINGIFY(s)         AV_TOSTRING(s)

 #define AV_TOSTRING(s) #s

-#define LIBAVCODEC_VERSION_INT  ((51<<16)+(18<<8)+0)

-#define LIBAVCODEC_VERSION      51.18.0

+#define LIBAVCODEC_VERSION_INT  ((51<<16)+(19<<8)+0)

+#define LIBAVCODEC_VERSION      51.19.0

 #define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT

 #define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)

@@ -146,6 +146,7 @@ enum CodecID {

     CODEC_ID_VP6F,

     CODEC_ID_TARGA,

     CODEC_ID_DSICINVIDEO,

+    CODEC_ID_TIERTEXSEQVIDEO,

     /* various pcm "codecs" */

     CODEC_ID_PCM_S16LE= 0x10000,

@@ -2298,6 +2299,7 @@ extern AVCodec wavpack_decoder;

 extern AVCodec targa_decoder;

 extern AVCodec dsicinvideo_decoder;

 extern AVCodec dsicinaudio_decoder;

+extern AVCodec tiertexseqvideo_decoder;

 /* pcm codecs */

 #define PCM_CODEC(id, name) \

new file mode 100644

@@ -0,0 +1,232 @@

+/*

+ * Tiertex Limited SEQ Video Decoder

+ * Copyright (c) 2006 Gregory Montoir (cyx@users.sourceforge.net)

+ *

+ * 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

+ */

+

+/**

+ * @file tiertexseqv.c

+ * Tiertex Limited SEQ video decoder

+ */

+

+#include "avcodec.h"

+#include "common.h"

+#define ALT_BITSTREAM_READER_LE

+#include "bitstream.h"

+

+

+typedef struct SeqVideoContext {

+    AVCodecContext *avctx;

+    AVFrame frame;

+    unsigned int palette[256];

+    unsigned char block[8 * 8];

+} SeqVideoContext;

+

+

+static unsigned char *seq_unpack_rle_block(unsigned char *src, unsigned char *dst, int dst_size)

+{

+    int i, len, sz;

+    GetBitContext gb;

+    int code_table[64];

+

+    /* get the rle codes (at most 64 bytes) */

+    init_get_bits(&gb, src, 64 * 8);

+    for (i = 0, sz = 0; i < 64 && sz < dst_size; i++) {

+        code_table[i] = get_sbits(&gb, 4);

+        sz += FFABS(code_table[i]);

+    }

+    src += (get_bits_count(&gb) + 7) / 8;

+

+    /* do the rle unpacking */

+    for (i = 0; i < 64 && dst_size > 0; i++) {

+        len = code_table[i];

+        if (len < 0) {

+            len = -len;

+            memset(dst, *src++, FFMIN(len, dst_size));

+        } else {

+            memcpy(dst, src, FFMIN(len, dst_size));

+            src += len;

+        }

+        dst += len;

+        dst_size -= len;

+    }

+    return src;

+}

+

+static unsigned char *seq_decode_op1(SeqVideoContext *seq, unsigned char *src, unsigned char *dst)

+{

+    unsigned char *color_table;

+    int b, i, len, bits;

+    GetBitContext gb;

+

+    len = *src++;

+    if (len & 0x80) {

+        switch (len & 3) {

+        case 1:

+            src = seq_unpack_rle_block(src, seq->block, sizeof(seq->block));

+            for (b = 0; b < 8; b++) {

+                memcpy(dst, &seq->block[b * 8], 8);

+                dst += seq->frame.linesize[0];

+            }

+            break;

+        case 2:

+            src = seq_unpack_rle_block(src, seq->block, sizeof(seq->block));

+            for (i = 0; i < 8; i++) {

+                for (b = 0; b < 8; b++)

+                    dst[b * seq->frame.linesize[0]] = seq->block[i * 8 + b];

+                ++dst;

+            }

+            break;

+        }

+    } else {

+        color_table = src;

+        src += len;

+        bits = ff_log2_tab[len - 1] + 1;

+        init_get_bits(&gb, src, bits * 8 * 8); src += bits * 8;

+        for (b = 0; b < 8; b++) {

+            for (i = 0; i < 8; i++)

+                dst[i] = color_table[get_bits(&gb, bits)];

+            dst += seq->frame.linesize[0];

+        }

+    }

+

+    return src;

+}

+

+static unsigned char *seq_decode_op2(SeqVideoContext *seq, unsigned char *src, unsigned char *dst)

+{

+    int i;

+

+    for (i = 0; i < 8; i++) {

+        memcpy(dst, src, 8);

+        src += 8;

+        dst += seq->frame.linesize[0];

+    }

+

+    return src;

+}

+

+static unsigned char *seq_decode_op3(SeqVideoContext *seq, unsigned char *src, unsigned char *dst)

+{

+    int pos, offset;

+

+    do {

+        pos = *src++;

+        offset = ((pos >> 3) & 7) * seq->frame.linesize[0] + (pos & 7);

+        dst[offset] = *src++;

+    } while (!(pos & 0x80));

+

+    return src;

+}

+

+static void seqvideo_decode(SeqVideoContext *seq, unsigned char *data, int data_size)

+{

+    GetBitContext gb;

+    int flags, i, j, x, y, op;

+    unsigned char c[3];

+    unsigned char *dst;

+

+    flags = *data++;

+

+    if (flags & 1) {

+        for (i = 0; i < 256; i++) {

+            for (j = 0; j < 3; j++, data++)

+                c[j] = (*data << 2) | (*data >> 4);

+            seq->palette[i] = (c[0] << 16) | (c[1] << 8) | c[2];

+        }

+        memcpy(seq->frame.data[1], seq->palette, sizeof(seq->palette));

+        seq->frame.palette_has_changed = 1;

+    }

+

+    if (flags & 2) {

+        init_get_bits(&gb, data, 128 * 8); data += 128;

+        for (y = 0; y < 128; y += 8)

+            for (x = 0; x < 256; x += 8) {

+                dst = &seq->frame.data[0][y * seq->frame.linesize[0] + x];

+                op = get_bits(&gb, 2);

+                switch (op) {

+                case 1:

+                    data = seq_decode_op1(seq, data, dst);

+                    break;

+                case 2:

+                    data = seq_decode_op2(seq, data, dst);

+                    break;

+                case 3:

+                    data = seq_decode_op3(seq, data, dst);

+                    break;

+                }

+            }

+    }

+}

+

+static int seqvideo_decode_init(AVCodecContext *avctx)

+{

+    SeqVideoContext *seq = (SeqVideoContext *)avctx->priv_data;

+

+    seq->avctx = avctx;

+    avctx->pix_fmt = PIX_FMT_PAL8;

+    avctx->has_b_frames = 0;

+

+    seq->frame.data[0] = NULL;

+

+    return 0;

+}

+

+static int seqvideo_decode_frame(AVCodecContext *avctx,

+                                 void *data, int *data_size,

+                                 uint8_t *buf, int buf_size)

+{

+

+    SeqVideoContext *seq = (SeqVideoContext *)avctx->priv_data;

+

+    seq->frame.reference = 1;

+    seq->frame.buffer_hints = FF_BUFFER_HINTS_VALID | FF_BUFFER_HINTS_PRESERVE | FF_BUFFER_HINTS_REUSABLE;

+    if (avctx->reget_buffer(avctx, &seq->frame)) {

+        av_log(seq->avctx, AV_LOG_ERROR, "tiertexseqvideo: reget_buffer() failed\n");

+        return -1;

+    }

+

+    seqvideo_decode(seq, buf, buf_size);

+

+    *data_size = sizeof(AVFrame);

+    *(AVFrame *)data = seq->frame;

+

+    return buf_size;

+}

+

+static int seqvideo_decode_end(AVCodecContext *avctx)

+{

+    SeqVideoContext *seq = (SeqVideoContext *)avctx->priv_data;

+

+    if (seq->frame.data[0])

+        avctx->release_buffer(avctx, &seq->frame);

+

+    return 0;

+}

+

+AVCodec tiertexseqvideo_decoder = {

+    "tiertexseqvideo",

+    CODEC_TYPE_VIDEO,

+    CODEC_ID_TIERTEXSEQVIDEO,

+    sizeof(SeqVideoContext),

+    seqvideo_decode_init,

+    NULL,

+    seqvideo_decode_end,

+    seqvideo_decode_frame,

+    CODEC_CAP_DR1,

+};

@@ -130,6 +130,7 @@ OBJS-$(CONFIG_WSVQA_DEMUXER)             += westwood.o

 OBJS-$(CONFIG_WV_DEMUXER)                += wv.o

 OBJS-$(CONFIG_YUV4MPEGPIPE_MUXER)        += yuv4mpeg.o

 OBJS-$(CONFIG_YUV4MPEGPIPE_DEMUXER)      += yuv4mpeg.o

+OBJS-$(CONFIG_TIERTEXSEQ_DEMUXER)        += tiertexseq.o

 # image formats

 OBJS+= pnm.o yuv.o png.o jpeg.o gifdec.o sgi.o

@@ -478,6 +478,9 @@ void av_register_all(void)

 #ifdef CONFIG_YUV4MPEGPIPE_DEMUXER

     av_register_input_format(&yuv4mpegpipe_demuxer);

 #endif

+#ifdef CONFIG_TIERTEXSEQ_DEMUXER

+    av_register_input_format(&tiertexseq_demuxer);

+#endif

     /* image formats */

 #if 0

@@ -162,6 +162,7 @@ extern AVInputFormat wsvqa_demuxer;

 extern AVInputFormat wv_demuxer;

 extern AVOutputFormat yuv4mpegpipe_muxer;

 extern AVInputFormat yuv4mpegpipe_demuxer;

+extern AVInputFormat tiertexseq_demuxer;

 /* raw.c */

 int pcm_read_seek(AVFormatContext *s,

@@ -25,8 +25,8 @@

 extern "C" {

 #endif

-#define LIBAVFORMAT_VERSION_INT ((50<<16)+(5<<8)+0)

-#define LIBAVFORMAT_VERSION     50.5.0

+#define LIBAVFORMAT_VERSION_INT ((50<<16)+(6<<8)+0)

+#define LIBAVFORMAT_VERSION     50.6.0

 #define LIBAVFORMAT_BUILD       LIBAVFORMAT_VERSION_INT

 #define LIBAVFORMAT_IDENT       "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)

new file mode 100644

@@ -0,0 +1,305 @@

+/*

+ * Tiertex Limited SEQ File Demuxer

+ * Copyright (c) 2006 Gregory Montoir (cyx@users.sourceforge.net)

+ *

+ * 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

+ */

+

+/**

+ * @file tiertexseq.c

+ * Tiertex Limited SEQ file demuxer

+ */

+

+#include "avformat.h"

+

+#define SEQ_FRAME_SIZE         6144

+#define SEQ_FRAME_W            256

+#define SEQ_FRAME_H            128

+#define SEQ_NUM_FRAME_BUFFERS  30

+#define SEQ_AUDIO_BUFFER_SIZE  882

+#define SEQ_SAMPLE_RATE        22050

+#define SEQ_FRAME_RATE         25

+

+

+typedef struct TiertexSeqFrameBuffer {

+    int fill_size;

+    int data_size;

+    unsigned char *data;

+} TiertexSeqFrameBuffer;

+

+typedef struct SeqDemuxContext {

+    int audio_stream_index;

+    int video_stream_index;

+    int current_frame_pts;

+    int current_frame_offs;

+    TiertexSeqFrameBuffer frame_buffers[SEQ_NUM_FRAME_BUFFERS];

+    int frame_buffers_count;

+    unsigned int current_audio_data_size;

+    unsigned int current_audio_data_offs;

+    unsigned int current_pal_data_size;

+    unsigned int current_pal_data_offs;

+    unsigned int current_video_data_size;

+    unsigned char *current_video_data_ptr;

+    int audio_buffer_full;

+} SeqDemuxContext;

+

+

+static int seq_probe(AVProbeData *p)

+{

+    int i;

+

+    if (p->buf_size < 256)

+        return 0;

+

+    /* there's no real header in a .seq file, the only thing they have in common */

+    /* is the first 256 bytes of the file which are always filled with 0 */

+    for (i = 0; i < 256; i++)

+        if (p->buf[0] != 0)

+            return 0;

+

+    /* only one fourth of the score since the previous check is too naive */

+    return AVPROBE_SCORE_MAX / 4;

+}

+

+static int seq_init_frame_buffers(SeqDemuxContext *seq, ByteIOContext *pb)

+{

+    int i, sz;

+    TiertexSeqFrameBuffer *seq_buffer;

+

+    url_fseek(pb, 256, SEEK_SET);

+

+    for (i = 0; i < SEQ_NUM_FRAME_BUFFERS; i++) {

+        sz = get_le16(pb);

+        if (sz == 0)

+            break;

+        else {

+            seq_buffer = &seq->frame_buffers[i];

+            seq_buffer->fill_size = 0;

+            seq_buffer->data_size = sz;

+            seq_buffer->data = av_malloc(sz);

+            if (!seq_buffer->data)

+                return AVERROR_NOMEM;

+        }

+    }

+    seq->frame_buffers_count = i;

+    return 0;

+}

+

+static int seq_fill_buffer(SeqDemuxContext *seq, ByteIOContext *pb, int buffer_num, unsigned int data_offs, int data_size)

+{

+    TiertexSeqFrameBuffer *seq_buffer;

+

+    if (buffer_num >= SEQ_NUM_FRAME_BUFFERS)

+        return AVERROR_INVALIDDATA;

+

+    seq_buffer = &seq->frame_buffers[buffer_num];

+    if (seq_buffer->fill_size + data_size > seq_buffer->data_size)

+        return AVERROR_INVALIDDATA;

+

+    url_fseek(pb, seq->current_frame_offs + data_offs, SEEK_SET);

+    if (get_buffer(pb, seq_buffer->data + seq_buffer->fill_size, data_size) != data_size)

+        return AVERROR_IO;

+

+    seq_buffer->fill_size += data_size;

+    return 0;

+}

+

+static int seq_parse_frame_data(SeqDemuxContext *seq, ByteIOContext *pb)

+{

+    unsigned int offset_table[4], buffer_num[4];

+    TiertexSeqFrameBuffer *seq_buffer;

+    int i, e;

+

+    seq->current_frame_offs += SEQ_FRAME_SIZE;

+    url_fseek(pb, seq->current_frame_offs, SEEK_SET);

+

+    /* sound data */

+    seq->current_audio_data_offs = get_le16(pb);

+    if (seq->current_audio_data_offs != 0) {

+        seq->current_audio_data_size = SEQ_AUDIO_BUFFER_SIZE * 2;

+    } else {

+        seq->current_audio_data_size = 0;

+    }

+

+    /* palette data */

+    seq->current_pal_data_offs = get_le16(pb);

+    if (seq->current_pal_data_offs != 0) {

+        seq->current_pal_data_size = 768;

+    } else {

+        seq->current_pal_data_size = 0;

+    }

+

+    /* video data */

+    for (i = 0; i < 4; i++)

+        buffer_num[i] = get_byte(pb);

+

+    for (i = 0; i < 4; i++)

+        offset_table[i] = get_le16(pb);

+

+    for (i = 0; i < 3; i++) {

+        if (offset_table[i] != 0) {

+            for (e = i + 1; e < 4 && offset_table[e] == 0; e++);

+            seq_fill_buffer(seq, pb, buffer_num[1 + i],

+              offset_table[i],

+              offset_table[e] - offset_table[i]);

+        }

+    }

+

+    if (buffer_num[0] != 255) {

+        seq_buffer = &seq->frame_buffers[buffer_num[0]];

+        seq->current_video_data_size = seq_buffer->fill_size;

+        seq->current_video_data_ptr  = seq_buffer->data;

+        seq_buffer->fill_size = 0;

+    } else {

+        seq->current_video_data_size = 0;

+        seq->current_video_data_ptr  = 0;

+    }

+

+    return 0;

+}

+

+static int seq_read_header(AVFormatContext *s, AVFormatParameters *ap)

+{

+    int i, rc;

+    SeqDemuxContext *seq = (SeqDemuxContext *)s->priv_data;

+    ByteIOContext *pb = &s->pb;

+    AVStream *st;

+

+    /* init internal buffers */

+    rc = seq_init_frame_buffers(seq, pb);

+    if (rc)

+        return rc;

+

+    seq->current_frame_offs = 0;

+

+    /* preload (no audio data, just buffer operations related data) */

+    for (i = 1; i <= 100; i++) {

+        rc = seq_parse_frame_data(seq, pb);

+        if (rc)

+            return rc;

+    }

+

+    seq->current_frame_pts = 0;

+

+    seq->audio_buffer_full = 0;

+

+    /* initialize the video decoder stream */

+    st = av_new_stream(s, 0);

+    if (!st)

+        return AVERROR_NOMEM;

+

+    av_set_pts_info(st, 32, 1, SEQ_FRAME_RATE);

+    seq->video_stream_index = st->index;

+    st->codec->codec_type = CODEC_TYPE_VIDEO;

+    st->codec->codec_id = CODEC_ID_TIERTEXSEQVIDEO;

+    st->codec->codec_tag = 0;  /* no fourcc */

+    st->codec->width = SEQ_FRAME_W;

+    st->codec->height = SEQ_FRAME_H;

+

+    /* initialize the audio decoder stream */

+    st = av_new_stream(s, 0);

+    if (!st)

+        return AVERROR_NOMEM;

+

+    av_set_pts_info(st, 32, 1, SEQ_SAMPLE_RATE);

+    seq->audio_stream_index = st->index;

+    st->codec->codec_type = CODEC_TYPE_AUDIO;

+    st->codec->codec_id = CODEC_ID_PCM_S16BE;

+    st->codec->codec_tag = 0;  /* no tag */

+    st->codec->channels = 1;

+    st->codec->sample_rate = SEQ_SAMPLE_RATE;

+    st->codec->bits_per_sample = 16;

+    st->codec->bit_rate = st->codec->sample_rate * st->codec->bits_per_sample * st->codec->channels;

+    st->codec->block_align = st->codec->channels * st->codec->bits_per_sample;

+

+    return 0;

+}

+

+static int seq_read_packet(AVFormatContext *s, AVPacket *pkt)

+{

+    int rc;

+    SeqDemuxContext *seq = (SeqDemuxContext *)s->priv_data;

+    ByteIOContext *pb = &s->pb;

+

+    if (!seq->audio_buffer_full) {

+        rc = seq_parse_frame_data(seq, pb);

+        if (rc)

+            return rc;

+

+        /* video packet */

+        if (seq->current_pal_data_size + seq->current_video_data_size != 0) {

+            if (av_new_packet(pkt, 1 + seq->current_pal_data_size + seq->current_video_data_size))

+                return AVERROR_NOMEM;

+

+            pkt->data[0] = 0;

+            if (seq->current_pal_data_size != 0) {

+                pkt->data[0] |= 1;

+                url_fseek(pb, seq->current_frame_offs + seq->current_pal_data_offs, SEEK_SET);

+                if (get_buffer(pb, &pkt->data[1], seq->current_pal_data_size) != seq->current_pal_data_size)

+                    return AVERROR_IO;

+            }

+            if (seq->current_video_data_size != 0) {

+                pkt->data[0] |= 2;

+                memcpy(&pkt->data[1 + seq->current_pal_data_size],

+                  seq->current_video_data_ptr,

+                  seq->current_video_data_size);

+            }

+            pkt->stream_index = seq->video_stream_index;

+            pkt->pts = seq->current_frame_pts;

+

+            /* sound buffer will be processed on next read_packet() call */

+            seq->audio_buffer_full = 1;

+            return 0;

+       }

+    }

+

+    /* audio packet */

+    if (seq->current_audio_data_offs == 0) /* end of data reached */

+        return AVERROR_IO;

+

+    url_fseek(pb, seq->current_frame_offs + seq->current_audio_data_offs, SEEK_SET);

+    rc = av_get_packet(pb, pkt, seq->current_audio_data_size);

+    if (rc < 0)

+        return rc;

+

+    pkt->stream_index = seq->audio_stream_index;

+    pkt->pts = seq->current_frame_pts++;

+

+    seq->audio_buffer_full = 0;

+    return 0;

+}

+

+static int seq_read_close(AVFormatContext *s)

+{

+    int i;

+    SeqDemuxContext *seq = (SeqDemuxContext *)s->priv_data;

+

+    for (i = 0; i < SEQ_NUM_FRAME_BUFFERS; i++)

+        av_free(seq->frame_buffers[i].data);

+

+    return 0;

+}

+

+AVInputFormat tiertexseq_demuxer = {

+    "tiertexseq",

+    "Tiertex Limited SEQ format",

+    sizeof(SeqDemuxContext),

+    seq_probe,

+    seq_read_header,

+    seq_read_packet,

+    seq_read_close,

+};