Binary text decoder

Decoder and demuxer for various binary text formats.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Changelog

@@ -54,6 +54,7 @@ easier to use. The changes are:
 - Optional C++ Support (needed for libstagefright)
 - H.264 Decoding on Android via Stagefright
 - Prores decoder
+- BIN/XBIN/ADF/IDF text file decoder
 
 
 version 0.8:

doc/general.texi

@@ -51,6 +51,7 @@ library:
     @tab Multimedia format used in games like Mad Dog McCree.
 @item 3GPP AMR                  @tab X @tab X
 @item Apple HTTP Live Streaming @tab   @tab X
+@item Artworx Data Format       @tab   @tab X
 @item ASF                       @tab X @tab X
 @item AVI                       @tab X @tab X
 @item AVISynth                  @tab   @tab X
@@ -60,6 +61,7 @@ library:
     @tab Audio and video format used in some games by Beam Software.
 @item Bethesda Softworks VID    @tab   @tab X
     @tab Used in some games from Bethesda Softworks.
+@item Binary text               @tab   @tab C
 @item Bink                      @tab   @tab X
     @tab Multimedia format used by many games.
 @item Bitmap Brothers JV        @tab   @tab X
@@ -106,6 +108,7 @@ library:
 @item GXF                       @tab X @tab X
     @tab General eXchange Format SMPTE 360M, used by Thomson Grass Valley
          playout servers.
+@item iCEDraw File              @tab   @tab X
 @item id Quake II CIN video     @tab   @tab X
 @item id RoQ                    @tab X @tab X
     @tab Used in Quake III, Jedi Knight 2, other computer games.
@@ -267,6 +270,7 @@ library:
     @tab Microsoft video container used in Xbox games.
 @item xWMA                      @tab   @tab X
     @tab Microsoft audio container used by XAudio 2.
+@item eXtended BINary text (XBIN) @tab @tab X
 @item YUV4MPEG pipe             @tab X @tab X
 @item Psygnosis YOP             @tab   @tab X
 @end multitable

libavcodec/Makefile

@@ -96,6 +96,7 @@ OBJS-$(CONFIG_BFI_DECODER)             += bfi.o
 OBJS-$(CONFIG_BINK_DECODER)            += bink.o binkdsp.o
 OBJS-$(CONFIG_BINKAUDIO_DCT_DECODER)   += binkaudio.o wma.o
 OBJS-$(CONFIG_BINKAUDIO_RDFT_DECODER)  += binkaudio.o wma.o
+OBJS-$(CONFIG_BINTEXT_DECODER)         += bintext.o cga_data.o
 OBJS-$(CONFIG_BMP_DECODER)             += bmp.o msrledec.o
 OBJS-$(CONFIG_BMP_ENCODER)             += bmpenc.o
 OBJS-$(CONFIG_C93_DECODER)             += c93.o
@@ -188,6 +189,7 @@ OBJS-$(CONFIG_H264_VAAPI_HWACCEL)      += vaapi_h264.o
 OBJS-$(CONFIG_HUFFYUV_DECODER)         += huffyuv.o
 OBJS-$(CONFIG_HUFFYUV_ENCODER)         += huffyuv.o
 OBJS-$(CONFIG_IDCIN_DECODER)           += idcinvideo.o
+OBJS-$(CONFIG_IDF_DECODER)             += bintext.o cga_data.o
 OBJS-$(CONFIG_IFF_BYTERUN1_DECODER)    += iff.o
 OBJS-$(CONFIG_IFF_ILBM_DECODER)        += iff.o
 OBJS-$(CONFIG_IMC_DECODER)             += imc.o
@@ -440,6 +442,7 @@ OBJS-$(CONFIG_WS_SND1_DECODER)         += ws-snd1.o
 OBJS-$(CONFIG_XAN_DPCM_DECODER)        += dpcm.o
 OBJS-$(CONFIG_XAN_WC3_DECODER)         += xan.o
 OBJS-$(CONFIG_XAN_WC4_DECODER)         += xxan.o
+OBJS-$(CONFIG_XBIN_DECODER)            += bintext.o cga_data.o
 OBJS-$(CONFIG_XL_DECODER)              += xl.o
 OBJS-$(CONFIG_XSUB_DECODER)            += xsubdec.o
 OBJS-$(CONFIG_XSUB_ENCODER)            += xsubenc.o

libavcodec/allcodecs.c

@@ -393,6 +393,11 @@ void avcodec_register_all(void)
     REGISTER_ENCODER (LIBXAVS, libxavs);
     REGISTER_ENCODER (LIBXVID, libxvid);
 
+    /* text */
+    REGISTER_DECODER (BINTEXT, bintext);
+    REGISTER_DECODER  (XBIN, xbin);
+    REGISTER_DECODER  (IDF, idf);
+
     /* parsers */
     REGISTER_PARSER  (AAC, aac);
     REGISTER_PARSER  (AAC_LATM, aac_latm);

libavcodec/avcodec.h

@@ -361,6 +361,9 @@ enum CodecID {
     /* other specific kind of codecs (generally used for attachments) */
     CODEC_ID_FIRST_UNKNOWN = 0x18000,           ///< A dummy ID pointing at the start of various fake codecs.
     CODEC_ID_TTF= 0x18000,
+    CODEC_ID_BINTEXT,
+    CODEC_ID_XBIN,
+    CODEC_ID_IDF,
 
     CODEC_ID_PROBE= 0x19000, ///< codec_id is not known (like CODEC_ID_NONE) but lavf should attempt to identify it
 

libavcodec/bintext.c

@@ -0,0 +1,252 @@
+/*
+ * Binary text decoder
+ * eXtended BINary text (XBIN) decoder
+ * iCEDraw File decoder
+ * Copyright (c) 2010 Peter Ross (pross@xvid.org)
+ *
+ * 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 libavcodec/xbin.c
+ * Binary text decoder
+ * eXtended BINary text (XBIN) decoder
+ * iCEDraw File decoder
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "avcodec.h"
+#include "cga_data.h"
+#include "bintext.h"
+
+typedef struct XbinContext {
+    AVFrame frame;
+    int palette[16];
+    int flags;
+    int font_height;
+    const uint8_t *font;
+    int x, y;
+} XbinContext;
+
+static av_cold int decode_init(AVCodecContext *avctx)
+{
+    XbinContext *s = avctx->priv_data;
+    uint8_t *p;
+    int i;
+
+    avctx->pix_fmt = PIX_FMT_PAL8;
+    s->frame.reference = 1;
+    if (avctx->get_buffer(avctx, &s->frame)) {
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+        return -1;
+    }
+
+    p = avctx->extradata;
+    if (p) {
+        s->font_height = p[0];
+        s->flags = p[1];
+        p += 2;
+    } else {
+        s->font_height = 8;
+        s->flags = 0;
+    }
+
+    if ((s->flags & BINTEXT_PALETTE)) {
+        for (i = 0; i < 16; i++) {
+            s->palette[i] = 0xFF000000 | (AV_RB24(p) << 2);
+            p += 3;
+        }
+    } else {
+        for (i = 0; i < 16; i++)
+            s->palette[i] = 0xFF000000 | ff_cga_palette[i];
+    }
+
+    if ((s->flags & BINTEXT_FONT)) {
+        s->font = p;
+    } else {
+        switch(s->font_height) {
+        default:
+            av_log(avctx, AV_LOG_WARNING, "font height %i not support\n", s->font_height);
+            s->font_height = 8;
+        case 8:
+            s->font = ff_cga_font;
+            break;
+        case 16:
+            s->font = ff_vga16_font;
+            break;
+        }
+    }
+
+    return 0;
+}
+
+#define DEFAULT_BG_COLOR 0
+static void hscroll(AVCodecContext *avctx)
+{
+    XbinContext *s = avctx->priv_data;
+    if (s->y < avctx->height - s->font_height) {
+        s->y += s->font_height;
+    } else {
+        memmove(s->frame.data[0], s->frame.data[0] + s->font_height*s->frame.linesize[0],
+            (avctx->height - s->font_height)*s->frame.linesize[0]);
+        memset(s->frame.data[0] + (avctx->height - s->font_height)*s->frame.linesize[0],
+            DEFAULT_BG_COLOR, s->font_height * s->frame.linesize[0]);
+    }
+}
+
+#define FONT_WIDTH 8
+
+/**
+ * Draw character to screen
+ */
+static void draw_char(AVCodecContext *avctx, int c, int a)
+{
+    XbinContext *s = avctx->priv_data;
+    if (s->y > avctx->height - s->font_height)
+        return;
+    ff_draw_pc_font(s->frame.data[0] + s->y * s->frame.linesize[0] + s->x,
+                    s->frame.linesize[0], s->font, s->font_height, c,
+                    a & 0x0F, a >> 4);
+    s->x += FONT_WIDTH;
+    if (s->x >= avctx->width) {
+        s->x = 0;
+        s->y += s->font_height;
+    }
+}
+
+static int decode_frame(AVCodecContext *avctx,
+                            void *data, int *data_size,
+                            AVPacket *avpkt)
+{
+    XbinContext *s = avctx->priv_data;
+    const uint8_t *buf = avpkt->data;
+    int buf_size = avpkt->size;
+    const uint8_t *buf_end = buf+buf_size;
+
+    if (avctx->reget_buffer(avctx, &s->frame)) {
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+        return -1;
+    }
+    s->frame.pict_type           = FF_I_TYPE;
+    s->frame.palette_has_changed = 1;
+    memcpy(s->frame.data[1], s->palette, 16 * 4);
+
+    if (avctx->codec_id == CODEC_ID_XBIN) {
+        while (buf + 2 < buf_end) {
+            int i,c,a;
+            int type  = *buf >> 6;
+            int count = (*buf & 0x3F) + 1;
+            buf++;
+            switch (type) {
+            case 0: //no compression
+                for (i = 0; i < count && buf + 1 < buf_end; i++) {
+                    draw_char(avctx, buf[0], buf[1]);
+                    buf += 2;
+                }
+                break;
+            case 1: //character compression
+                c = *buf++;
+                for (i = 0; i < count && buf < buf_end; i++)
+                    draw_char(avctx, c, *buf++);
+                break;
+            case 2: //attribute compression
+                a = *buf++;
+                for (i = 0; i < count && buf < buf_end; i++)
+                    draw_char(avctx, *buf++, a);
+                break;
+            case 3: //character/attribute compression
+                c = *buf++;
+                a = *buf++;
+                for (i = 0; i < count && buf < buf_end; i++)
+                    draw_char(avctx, c, a);
+                break;
+            }
+        }
+    } else if (avctx->codec_id == CODEC_ID_IDF) {
+        while (buf + 2 < buf_end) {
+            if (AV_RL16(buf) == 1) {
+               int i;
+               if (buf + 6 > buf_end)
+                   break;
+               for (i = 0; i < buf[2]; i++)
+                   draw_char(avctx, buf[4], buf[5]);
+               buf += 6;
+            } else {
+               draw_char(avctx, buf[0], buf[1]);
+               buf += 2;
+            }
+        }
+    } else {
+        while (buf + 1 < buf_end) {
+            draw_char(avctx, buf[0], buf[1]);
+            buf += 2;
+        }
+    }
+
+    *data_size = sizeof(AVFrame);
+    *(AVFrame*)data = s->frame;
+    return buf_size;
+}
+
+static av_cold int decode_end(AVCodecContext *avctx)
+{
+    XbinContext *s = avctx->priv_data;
+
+    if (s->frame.data[0])
+        avctx->release_buffer(avctx, &s->frame);
+
+    return 0;
+}
+
+AVCodec ff_bintext_decoder = {
+    "xbin",
+    AVMEDIA_TYPE_VIDEO,
+    CODEC_ID_BINTEXT,
+    sizeof(XbinContext),
+    decode_init,
+    NULL,
+    decode_end,
+    decode_frame,
+    CODEC_CAP_DR1,
+    .long_name = NULL_IF_CONFIG_SMALL("Binary text"),
+};
+
+AVCodec ff_xbin_decoder = {
+    "xbin",
+    AVMEDIA_TYPE_VIDEO,
+    CODEC_ID_XBIN,
+    sizeof(XbinContext),
+    decode_init,
+    NULL,
+    decode_end,
+    decode_frame,
+    CODEC_CAP_DR1,
+    .long_name = NULL_IF_CONFIG_SMALL("eXtended BINary text"),
+};
+
+AVCodec ff_idf_decoder = {
+    "idf",
+    AVMEDIA_TYPE_VIDEO,
+    CODEC_ID_IDF,
+    sizeof(XbinContext),
+    decode_init,
+    NULL,
+    decode_end,
+    decode_frame,
+    CODEC_CAP_DR1,
+    .long_name = NULL_IF_CONFIG_SMALL("iCEDraw text"),
+};

libavcodec/bintext.h

@@ -0,0 +1,37 @@
+/*
+ * Binary text decoder
+ * Copyright (c) 2010 Peter Ross (pross@xvid.org)
+ *
+ * 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
+ * Binary text decoder
+ */
+
+#ifndef AVCODEC_BINTEXT_H
+#define AVCODEC_BINTEXT_H
+
+/* flag values passed between avformat and avcodec;
+ * while these are identical to the XBIN flags, they are are also used
+ * for the BINTEXT and IDF decoders.
+ */
+#define BINTEXT_PALETTE  0x1
+#define BINTEXT_FONT     0x2
+
+#endif /* AVCODEC_BINTEXT_H */

libavformat/Makefile

@@ -21,6 +21,7 @@ OBJS-$(CONFIG_A64_MUXER)                 += a64.o
 OBJS-$(CONFIG_AAC_DEMUXER)               += aacdec.o rawdec.o
 OBJS-$(CONFIG_AC3_DEMUXER)               += ac3dec.o rawdec.o
 OBJS-$(CONFIG_AC3_MUXER)                 += rawenc.o
+OBJS-$(CONFIG_ADF_DEMUXER)               += bintext.o sauce.o
 OBJS-$(CONFIG_ADTS_MUXER)                += adtsenc.o
 OBJS-$(CONFIG_AEA_DEMUXER)               += aea.o pcm.o
 OBJS-$(CONFIG_AIFF_DEMUXER)              += aiffdec.o riff.o pcm.o isom.o
@@ -46,6 +47,7 @@ OBJS-$(CONFIG_AVS_DEMUXER)               += avs.o vocdec.o voc.o
 OBJS-$(CONFIG_BETHSOFTVID_DEMUXER)       += bethsoftvid.o
 OBJS-$(CONFIG_BFI_DEMUXER)               += bfi.o
 OBJS-$(CONFIG_BINK_DEMUXER)              += bink.o
+OBJS-$(CONFIG_BINTEXT_DEMUXER)           += bintext.o sauce.o
 OBJS-$(CONFIG_C93_DEMUXER)               += c93.o vocdec.o voc.o
 OBJS-$(CONFIG_CAF_DEMUXER)               += cafdec.o caf.o mov.o riff.o isom.o
 OBJS-$(CONFIG_CAF_MUXER)                 += cafenc.o caf.o riff.o isom.o
@@ -100,6 +102,7 @@ OBJS-$(CONFIG_H263_MUXER)                += rawenc.o
 OBJS-$(CONFIG_H264_DEMUXER)              += h264dec.o rawdec.o
 OBJS-$(CONFIG_H264_MUXER)                += rawenc.o
 OBJS-$(CONFIG_IDCIN_DEMUXER)             += idcin.o
+OBJS-$(CONFIG_IDF_DEMUXER)               += bintext.o
 OBJS-$(CONFIG_IFF_DEMUXER)               += iff.o
 OBJS-$(CONFIG_IMAGE2_DEMUXER)            += img2.o
 OBJS-$(CONFIG_IMAGE2_MUXER)              += img2.o
@@ -308,6 +311,7 @@ OBJS-$(CONFIG_WTV_DEMUXER)               += wtvdec.o wtv.o asfdec.o asf.o asfcry
 OBJS-$(CONFIG_WTV_MUXER)                 += wtvenc.o wtv.o asf.o riff.o
 OBJS-$(CONFIG_WV_DEMUXER)                += wv.o apetag.o
 OBJS-$(CONFIG_XA_DEMUXER)                += xa.o
+OBJS-$(CONFIG_XBIN_DEMUXER)              += bintext.o sauce.o
 OBJS-$(CONFIG_XMV_DEMUXER)               += xmv.o
 OBJS-$(CONFIG_XWMA_DEMUXER)              += xwma.o riff.o
 OBJS-$(CONFIG_YOP_DEMUXER)               += yop.o

libavformat/allformats.c

@@ -51,6 +51,7 @@ void av_register_all(void)
     REGISTER_MUXER    (A64, a64);
     REGISTER_DEMUXER  (AAC, aac);
     REGISTER_MUXDEMUX (AC3, ac3);
+    REGISTER_DEMUXER  (ADF, adf);
     REGISTER_MUXER    (ADTS, adts);
     REGISTER_DEMUXER  (AEA, aea);
     REGISTER_MUXDEMUX (AIFF, aiff);
@@ -69,6 +70,7 @@ void av_register_all(void)
     REGISTER_DEMUXER  (AVS, avs);
     REGISTER_DEMUXER  (BETHSOFTVID, bethsoftvid);
     REGISTER_DEMUXER  (BFI, bfi);
+    REGISTER_DEMUXER  (BINTEXT, bintext);
     REGISTER_DEMUXER  (BINK, bink);
     REGISTER_DEMUXER  (C93, c93);
     REGISTER_MUXDEMUX (CAF, caf);
@@ -103,6 +105,7 @@ void av_register_all(void)
     REGISTER_MUXDEMUX (H263, h263);
     REGISTER_MUXDEMUX (H264, h264);
     REGISTER_DEMUXER  (IDCIN, idcin);
+    REGISTER_DEMUXER  (IDF, idf);
     REGISTER_DEMUXER  (IFF, iff);
     REGISTER_MUXDEMUX (IMAGE2, image2);
     REGISTER_MUXDEMUX (IMAGE2PIPE, image2pipe);
@@ -229,6 +232,7 @@ void av_register_all(void)
     REGISTER_MUXDEMUX (WTV, wtv);
     REGISTER_DEMUXER  (WV, wv);
     REGISTER_DEMUXER  (XA, xa);
+    REGISTER_DEMUXER  (XBIN, xbin);
     REGISTER_DEMUXER  (XMV, xmv);
     REGISTER_DEMUXER  (XWMA, xwma);
     REGISTER_DEMUXER  (YOP, yop);

libavformat/bintext.c

@@ -0,0 +1,376 @@
+/*
+ * Binary text demuxer
+ * eXtended BINary text (XBIN) demuxer
+ * Artworx Data Format demuxer
+ * iCEDraw File demuxer
+ * Copyright (c) 2010 Peter Ross <pross@xvid.org>
+ *
+ * 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
+ * Binary text demuxer
+ * eXtended BINary text (XBIN) demuxer
+ * Artworx Data Format demuxer
+ * iCEDraw File demuxer
+ */
+
+#include "libavutil/intreadwrite.h"
+#include "avformat.h"
+#include "sauce.h"
+#include "libavcodec/bintext.h"
+
+#define LINE_RATE 6000 /** characters per second */
+
+typedef struct {
+    int chars_per_frame;
+    uint64_t fsize;  /**< file size less metadata buffer */
+} BinDemuxContext;
+
+#if CONFIG_BINTEXT_DEMUXER | CONFIG_ADF_DEMUXER | CONFIG_IDF_DEMUXER
+/**
+ * Given filesize and width, calculate height (assume font_height of 16)
+ */
+static void calculate_height(AVCodecContext *avctx, uint64_t fsize)
+{
+    avctx->height = (fsize / ((avctx->width>>3)*2)) << 4;
+}
+#endif
+
+#if CONFIG_BINTEXT_DEMUXER
+static const uint8_t next_magic[]={
+    0x1A, 0x1B, '[', '0', ';', '3', '0', ';', '4', '0', 'm', 'N', 'E', 'X', 'T', 0x00
+};
+
+static int next_tag_read(AVFormatContext *avctx, uint64_t *fsize)
+{
+    ByteIOContext *pb = avctx->pb;
+    char buf[36];
+    int len;
+    uint64_t start_pos = url_fsize(pb) - 256;
+
+    url_fseek(pb, start_pos, SEEK_SET);
+    if (get_buffer(pb, buf, sizeof(next_magic)) != sizeof(next_magic))
+        return -1;
+    if (memcmp(buf, next_magic, sizeof(next_magic)))
+        return -1;
+    if (get_byte(pb) != 0x01)
+        return -1;
+
+    *fsize -= 256;
+
+#define GET_EFI2_META(name,size) \
+    len = get_byte(pb); \
+    if (len < 1 || len > size) \
+        return -1; \
+    if (get_buffer(pb, buf, size) == size && *buf) { \
+        buf[len] = 0; \
+        av_metadata_set2(&avctx->metadata, name, buf, 0); \
+    }
+
+    GET_EFI2_META("filename",  12)
+    GET_EFI2_META("author",    20)
+    GET_EFI2_META("publisher", 20)
+    GET_EFI2_META("title",     35)
+
+    return 0;
+}
+
+static void predict_width(AVCodecContext *avctx, uint64_t fsize, int got_width)
+{
+    /** attempt to guess width */
+    if (!got_width)
+        avctx->width = fsize > 4000 ? (160<<3) : (80<<3);
+}
+
+static AVStream * init_stream(AVFormatContext *s,
+                              AVFormatParameters *ap)
+{
+    BinDemuxContext *bin = s->priv_data;
+    AVStream *st = av_new_stream(s, 0);
+    if (!st)
+        return NULL;
+    st->codec->codec_tag   = 0;
+    st->codec->codec_type  = AVMEDIA_TYPE_VIDEO;
+
+    if (!ap->time_base.num) {
+        av_set_pts_info(st, 60, 1, 25);
+    } else {
+        av_set_pts_info(st, 60, ap->time_base.num, ap->time_base.den);
+    }
+
+    /* simulate tty display speed */
+    bin->chars_per_frame = FFMAX(av_q2d(st->time_base) * (ap->sample_rate ? ap->sample_rate : LINE_RATE), 1);
+
+    st->codec->width  = ap->width  ? ap->width  : (80<<3);
+    st->codec->height = ap->height ? ap->height : (25<<4);
+    return st;
+}
+
+static int bintext_read_header(AVFormatContext *s,
+                               AVFormatParameters *ap)
+{
+    BinDemuxContext *bin = s->priv_data;
+    ByteIOContext *pb = s->pb;
+
+    AVStream *st = init_stream(s, ap);
+    if (!st)
+        return AVERROR(ENOMEM);
+    st->codec->codec_id    = CODEC_ID_BINTEXT;
+
+    st->codec->extradata_size = 2;
+    st->codec->extradata = av_malloc(st->codec->extradata_size);
+    if (!st->codec->extradata)
+        return AVERROR(ENOMEM);
+    st->codec->extradata[0] = 16;
+    st->codec->extradata[1] = 0;
+
+    if (!url_is_streamed(pb)) {
+        int got_width = 0;
+        bin->fsize = url_fsize(pb);
+        if (ff_sauce_read(s, &bin->fsize, &got_width, 0) < 0)
+            next_tag_read(s, &bin->fsize);
+        if (!ap->width)
+            predict_width(st->codec, bin->fsize, got_width);
+        if (!ap->height)
+            calculate_height(st->codec, bin->fsize);
+        url_fseek(pb, 0, SEEK_SET);
+    }
+    return 0;
+};
+#endif /* CONFIG_BINTEXT_DEMUXER */
+
+#if CONFIG_XBIN_DEMUXER
+static int xbin_probe(AVProbeData *p)
+{
+    const uint8_t *d = p->buf;
+
+    if (AV_RL32(d) == MKTAG('X','B','I','N') && d[4] == 0x1A &&
+        AV_RL16(d+5) > 0 && AV_RL16(d+5) <= 160 &&
+        d[9] > 0 && d[9] <= 32)
+        return AVPROBE_SCORE_MAX;
+    return 0;
+}
+
+static int xbin_read_header(AVFormatContext *s,
+                           AVFormatParameters *ap)
+{
+    BinDemuxContext *bin = s->priv_data;
+    ByteIOContext *pb = s->pb;
+    char fontheight, flags;
+    uint8_t *h;
+
+    AVStream *st = init_stream(s, ap);
+    if (!st)
+        return AVERROR(ENOMEM);
+
+    url_fskip(pb, 5);
+    st->codec->width   = get_le16(pb)<<3;
+    st->codec->height  = get_le16(pb);
+    fontheight         = get_byte(pb);
+    st->codec->height *= fontheight;
+    flags              = get_byte(pb);
+
+    st->codec->extradata_size = 2;
+    if ((flags & BINTEXT_PALETTE))
+        st->codec->extradata_size += 48;
+    if ((flags & BINTEXT_FONT))
+        st->codec->extradata_size += fontheight * (flags & 0x10 ? 512 : 256);
+    st->codec->codec_id    = flags & 4 ? CODEC_ID_XBIN : CODEC_ID_BINTEXT;
+
+    h = st->codec->extradata = av_malloc(st->codec->extradata_size);
+    if (!st->codec->extradata)
+        return AVERROR(ENOMEM);
+    st->codec->extradata[0] = fontheight;
+    st->codec->extradata[1] = flags;
+    if (get_buffer(pb, st->codec->extradata + 2, st->codec->extradata_size - 2) < 0)
+        return AVERROR(EIO);
+
+    if (!url_is_streamed(pb)) {
+        bin->fsize = url_fsize(pb) - 9 - st->codec->extradata_size;
+        ff_sauce_read(s, &bin->fsize, NULL, 0);
+        url_fseek(pb, 9 + st->codec->extradata_size, SEEK_SET);
+    }
+
+    return 0;
+}
+#endif /* CONFIG_XBIN_DEMUXER */
+
+#if CONFIG_ADF_DEMUXER
+static int adf_read_header(AVFormatContext *s,
+                           AVFormatParameters *ap)
+{
+    BinDemuxContext *bin = s->priv_data;
+    ByteIOContext *pb = s->pb;
+    AVStream *st;
+
+    if (get_byte(pb) != 1)
+        return AVERROR_INVALIDDATA;
+
+    st = init_stream(s, ap);
+    if (!st)
+        return AVERROR(ENOMEM);
+    st->codec->codec_id    = CODEC_ID_BINTEXT;
+
+    st->codec->extradata_size = 2 + 48 + 4096;
+    st->codec->extradata = av_malloc(st->codec->extradata_size);
+    if (!st->codec->extradata)
+        return AVERROR(ENOMEM);
+    st->codec->extradata[0] = 16;
+    st->codec->extradata[1] = BINTEXT_PALETTE|BINTEXT_FONT;
+
+    if (get_buffer(pb, st->codec->extradata + 2, 24) < 0)
+        return AVERROR(EIO);
+    url_fskip(pb, 144);
+    if (get_buffer(pb, st->codec->extradata + 2 + 24, 24) < 0)
+        return AVERROR(EIO);
+    if (get_buffer(pb, st->codec->extradata + 2 + 48, 4096) < 0)
+        return AVERROR(EIO);
+
+    if (!url_is_streamed(pb)) {
+        int got_width = 0;
+        bin->fsize = url_fsize(pb) - 1 - 192 - 4096;
+        st->codec->width = 80<<3;
+        ff_sauce_read(s, &bin->fsize, &got_width, 0);
+        if (!ap->height)
+            calculate_height(st->codec, bin->fsize);
+        url_fseek(pb, 1 + 192 + 4096, SEEK_SET);
+    }
+    return 0;
+}
+#endif /* CONFIG_ADF_DEMUXER */
+
+#if CONFIG_IDF_DEMUXER
+static const uint8_t idf_magic[] = {
+    0x04, 0x31, 0x2e, 0x34, 0x00, 0x00, 0x00, 0x00, 0x4f, 0x00, 0x15, 0x00
+};
+
+static int idf_probe(AVProbeData *p)
+{
+    if (!memcmp(p->buf, idf_magic, FFMIN(sizeof(idf_magic), p->buf_size)))
+        return AVPROBE_SCORE_MAX;
+    return 0;
+}
+
+static int idf_read_header(AVFormatContext *s,
+                           AVFormatParameters *ap)
+{
+    BinDemuxContext *bin = s->priv_data;
+    ByteIOContext *pb = s->pb;
+    AVStream *st;
+    int got_width = 0;
+
+    if (url_is_streamed(pb))
+        return AVERROR(EIO);
+
+    st = init_stream(s, ap);
+    if (!st)
+        return AVERROR(ENOMEM);
+    st->codec->codec_id    = CODEC_ID_IDF;
+
+    st->codec->extradata_size = 2 + 48 + 4096;
+    st->codec->extradata = av_malloc(st->codec->extradata_size);
+    if (!st->codec->extradata)
+        return AVERROR(ENOMEM);
+    st->codec->extradata[0] = 16;
+    st->codec->extradata[1] = BINTEXT_PALETTE|BINTEXT_FONT;
+
+    url_fseek(pb, url_fsize(pb) - 4096 - 48, SEEK_SET);
+
+    if (get_buffer(pb, st->codec->extradata + 2 + 48, 4096) < 0)
+        return AVERROR(EIO);
+    if (get_buffer(pb, st->codec->extradata + 2, 48) < 0)
+        return AVERROR(EIO);
+
+    bin->fsize = url_fsize(pb) - 12 - 4096 - 48;
+    ff_sauce_read(s, &bin->fsize, &got_width, 0);
+    if (!ap->height)
+        calculate_height(st->codec, bin->fsize);
+    url_fseek(pb, 12, SEEK_SET);
+    return 0;
+}
+#endif /* CONFIG_IDF_DEMUXER */
+
+static int read_packet(AVFormatContext *s,
+                           AVPacket *pkt)
+{
+    BinDemuxContext *bin = s->priv_data;
+
+    if (bin->fsize > 0) {
+        if (av_get_packet(s->pb, pkt, bin->fsize) < 0)
+            return AVERROR(EIO);
+        bin->fsize = -1; /* done */
+    } else if (!bin->fsize) {
+        if (url_feof(s->pb))
+            return AVERROR(EIO);
+        if (av_get_packet(s->pb, pkt, bin->chars_per_frame) < 0)
+            return AVERROR(EIO);
+    } else {
+        return AVERROR(EIO);
+    }
+
+    pkt->flags |= AV_PKT_FLAG_KEY;
+    return 0;
+}
+
+#if CONFIG_BINTEXT_DEMUXER
+AVInputFormat ff_bintext_demuxer = {
+    "bin",
+    NULL_IF_CONFIG_SMALL("Binary text"),
+    sizeof(BinDemuxContext),
+    NULL,
+    bintext_read_header,
+    read_packet,
+    .extensions = "bin",
+};
+#endif
+
+#if CONFIG_XBIN_DEMUXER
+AVInputFormat ff_xbin_demuxer = {
+    "xbin",
+    NULL_IF_CONFIG_SMALL("eXtended BINary text (XBIN)"),
+    sizeof(BinDemuxContext),
+    xbin_probe,
+    xbin_read_header,
+    read_packet,
+};
+#endif
+
+#if CONFIG_ADF_DEMUXER
+AVInputFormat ff_adf_demuxer = {
+    "adf",
+    NULL_IF_CONFIG_SMALL("Artworx Data Format"),
+    sizeof(BinDemuxContext),
+    NULL,
+    adf_read_header,
+    read_packet,
+    .extensions = "adf",
+};
+#endif
+
+#if CONFIG_IDF_DEMUXER
+AVInputFormat ff_idf_demuxer = {
+    "idf",
+    NULL_IF_CONFIG_SMALL("iCE Draw File"),
+    sizeof(BinDemuxContext),
+    idf_probe,
+    idf_read_header,
+    read_packet,
+    .extensions = "idf",
+};
+#endif