support for Sierra Online audio files and Apple QuickDraw codec,

courtesy of Konstantin Shishkov

Originally committed as revision 3529 to svn://svn.ffmpeg.org/ffmpeg/trunk

12 files changed, 430 insertions, 2 deletions

diff --git a/Changelog b/Changelog
index 0adb293bd0..86b467b368 100644
--- a/Changelog
+++ b/Changelog
@@ -1,6 +1,8 @@
 version <next>
 - TechSmith Camtasia (TSCC) video decoder
 - IBM Ultimotion (ULTI) video decoder
+- Sierra Online audio file demuxer and decoder
+- Apple QuickDraw (qdrw) video decoder
 
 version 0.4.9-pre1:
 
diff --git a/doc/ffmpeg-doc.texi b/doc/ffmpeg-doc.texi
index 65b1a25fe4..1c78f1ad90 100644
--- a/doc/ffmpeg-doc.texi
+++ b/doc/ffmpeg-doc.texi
@@ -676,6 +676,8 @@ library:
 @tab .fli/.flc files
 @item Sierra VMD       @tab    @tab X
 @tab used in Sierra CD-ROM games
+@item Sierra Online    @tab    @tab X
+@tab .sol files used in Sierra Online games
 @item Matroska         @tab    @tab X
 @end multitable
 
@@ -742,6 +744,7 @@ following image formats are supported:
 @item Apple Animation        @tab     @tab  X @tab fourcc: 'rle '
 @item Apple Graphics         @tab     @tab  X @tab fourcc: 'smc '
 @item Apple Video            @tab     @tab  X @tab fourcc: rpza
+@item Apple QuickDraw        @tab     @tab  X @tab fourcc: qdrw
 @item Cinepak                @tab     @tab  X
 @item Microsoft RLE          @tab     @tab  X
 @item Microsoft Video-1      @tab     @tab  X
@@ -812,6 +815,8 @@ solutions.
 @tab used in various Interplay computer games
 @item Xan DPCM               @tab      @tab X
 @tab used in Origin's Wing Commander IV AVI files
+@item Sierra Online DPCM     @tab      @tab X
+@tab used in Sierra Online game audio files
 @item Apple MACE 3           @tab      @tab X
 @item Apple MACE 6           @tab      @tab X
 @item FLAC                   @tab      @tab X
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index d366a6656d..9f26bf3625 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -20,7 +20,8 @@ OBJS= common.o utils.o mem.o allcodecs.o \
       roqvideo.o dpcm.o interplayvideo.o xan.o rpza.o cinepak.o msrle.o \
       msvideo1.o vqavideo.o idcinvideo.o adx.o rational.o faandct.o 8bps.o \
       smc.o parser.o flicvideo.o truemotion1.o vmdav.o lcl.o qtrle.o g726.o \
-      flac.o vp3dsp.o integer.o snow.o tscc.o sonic.o ulti.o h264idct.o
+      flac.o vp3dsp.o integer.o snow.o tscc.o sonic.o ulti.o h264idct.o \
+      qdrw.o
 
 ifeq ($(AMR_NB),yes)
 ifeq ($(AMR_NB_FIXED),yes)
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index b1c4ad418d..f6ab7d9e1c 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -108,6 +108,7 @@ void avcodec_register_all(void)
     register_avcodec(&indeo3_decoder);
     register_avcodec(&tscc_decoder);
     register_avcodec(&ulti_decoder);
+    register_avcodec(&qdraw_decoder);
 #ifdef CONFIG_FAAD
     register_avcodec(&aac_decoder);
     register_avcodec(&mpeg4aac_decoder);
@@ -169,6 +170,7 @@ void avcodec_register_all(void)
     register_avcodec(&roq_dpcm_decoder);
     register_avcodec(&interplay_dpcm_decoder);
     register_avcodec(&xan_dpcm_decoder);
+    register_avcodec(&sol_dpcm_decoder);
     register_avcodec(&qtrle_decoder);
     register_avcodec(&flac_decoder);
 #endif /* CONFIG_DECODERS */
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 3039d868ae..315ce40e09 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -103,6 +103,7 @@ enum CodecID {
     CODEC_ID_SNOW,
     CODEC_ID_TSCC,
     CODEC_ID_ULTI,
+    CODEC_ID_QDRAW,
 
     /* various pcm "codecs" */
     CODEC_ID_PCM_S16LE,
@@ -140,6 +141,7 @@ enum CodecID {
     CODEC_ID_ROQ_DPCM,
     CODEC_ID_INTERPLAY_DPCM,
     CODEC_ID_XAN_DPCM,
+    CODEC_ID_SOL_DPCM,
     
     CODEC_ID_FLAC,
     
@@ -1878,11 +1880,13 @@ extern AVCodec ra_288_decoder;
 extern AVCodec roq_dpcm_decoder;
 extern AVCodec interplay_dpcm_decoder;
 extern AVCodec xan_dpcm_decoder;
+extern AVCodec sol_dpcm_decoder;
 extern AVCodec sonic_decoder;
 extern AVCodec qtrle_decoder;
 extern AVCodec flac_decoder;
 extern AVCodec tscc_decoder;
 extern AVCodec ulti_decoder;
+extern AVCodec qdraw_decoder;
 
 /* pcm codecs */
 #define PCM_CODEC(id, name) \
diff --git a/libavcodec/dpcm.c b/libavcodec/dpcm.c
index b80604e5f4..78ab8cb34f 100644
--- a/libavcodec/dpcm.c
+++ b/libavcodec/dpcm.c
@@ -24,6 +24,7 @@
  * Xan DPCM decoder by Mario Brito (mbrito@student.dei.uc.pt)
  * for more information on the specific data formats, visit:
  *   http://www.pcisys.net/~melanson/codecs/simpleaudio.html
+ * SOL DPCMs implemented by Konstantin Shishkov
  *
  * Note about using the Xan DPCM decoder: Xan DPCM is used in AVI files
  * found in the Wing Commander IV computer game. These AVI files contain
@@ -39,6 +40,8 @@
 typedef struct DPCMContext {
     int channels;
     short roq_square_array[256];
+    long sample[2];//for SOL_DPCM
+    int *sol_table;//for SOL_DPCM
 } DPCMContext;
 
 #define SATURATE_S16(x)  if (x < -32768) x = -32768; \
@@ -81,6 +84,32 @@ static int interplay_delta_table[] = {
 
 };
 
+static int sol_table_old[16] =
+    { 0x0,  0x1,  0x2 , 0x3,  0x6,  0xA,  0xF, 0x15,
+    -0x15, -0xF, -0xA, -0x6, -0x3, -0x2, -0x1, 0x0};
+
+static int sol_table_new[16] =
+    { 0x0,  0x1,  0x2,  0x3,  0x6,  0xA,  0xF,  0x15,
+      0x0, -0x1, -0x2, -0x3, -0x6, -0xA, -0xF, -0x15};
+    
+static int sol_table_16[128] = {
+    0x000, 0x008, 0x010, 0x020, 0x030, 0x040, 0x050, 0x060, 0x070, 0x080,
+    0x090, 0x0A0, 0x0B0, 0x0C0, 0x0D0, 0x0E0, 0x0F0, 0x100, 0x110, 0x120,
+    0x130, 0x140, 0x150, 0x160, 0x170, 0x180, 0x190, 0x1A0, 0x1B0, 0x1C0,
+    0x1D0, 0x1E0, 0x1F0, 0x200, 0x208, 0x210, 0x218, 0x220, 0x228, 0x230,
+    0x238, 0x240, 0x248, 0x250, 0x258, 0x260, 0x268, 0x270, 0x278, 0x280,
+    0x288, 0x290, 0x298, 0x2A0, 0x2A8, 0x2B0, 0x2B8, 0x2C0, 0x2C8, 0x2D0,
+    0x2D8, 0x2E0, 0x2E8, 0x2F0, 0x2F8, 0x300, 0x308, 0x310, 0x318, 0x320,
+    0x328, 0x330, 0x338, 0x340, 0x348, 0x350, 0x358, 0x360, 0x368, 0x370,
+    0x378, 0x380, 0x388, 0x390, 0x398, 0x3A0, 0x3A8, 0x3B0, 0x3B8, 0x3C0,
+    0x3C8, 0x3D0, 0x3D8, 0x3E0, 0x3E8, 0x3F0, 0x3F8, 0x400, 0x440, 0x480,
+    0x4C0, 0x500, 0x540, 0x580, 0x5C0, 0x600, 0x640, 0x680, 0x6C0, 0x700,
+    0x740, 0x780, 0x7C0, 0x800, 0x900, 0xA00, 0xB00, 0xC00, 0xD00, 0xE00,
+    0xF00, 0x1000, 0x1400, 0x1800, 0x1C00, 0x2000, 0x3000, 0x4000
+};
+
+
+
 static int dpcm_decode_init(AVCodecContext *avctx)
 {
     DPCMContext *s = avctx->priv_data;
@@ -88,6 +117,7 @@ static int dpcm_decode_init(AVCodecContext *avctx)
     short square;
 
     s->channels = avctx->channels;
+    s->sample[0] = s->sample[1] = 0;
 
     switch(avctx->codec->id) {
 
@@ -100,6 +130,26 @@ static int dpcm_decode_init(AVCodecContext *avctx)
         }
         break;
 
+        
+    case CODEC_ID_SOL_DPCM:
+        switch(avctx->codec_tag){
+        case 1:
+            s->sol_table=sol_table_old;
+            s->sample[0] = s->sample[1] = 0x80;
+            break;
+        case 2:
+            s->sol_table=sol_table_new;
+            s->sample[0] = s->sample[1] = 0x80;
+            break;
+        case 3:
+            s->sol_table=sol_table_16;
+            break;
+        default:
+            av_log(avctx, AV_LOG_ERROR, "Unknown SOL subcodec\n");
+            return -1;
+        }
+        break;
+     
     default:
         break;
     }
@@ -203,6 +253,35 @@ static int dpcm_decode_frame(AVCodecContext *avctx,
             channel_number ^= s->channels - 1;
         }
         break;
+    case CODEC_ID_SOL_DPCM:
+        in = 0;
+        if (avctx->codec_tag != 3) {
+            while (in < buf_size) {
+                int n1, n2;
+                n1 = (buf[in] >> 4) & 0xF;
+                n2 = buf[in++] & 0xF;
+                s->sample[0] += s->sol_table[n1];
+                 if (s->sample[0] < 0) s->sample[0] = 0;
+                if (s->sample[0] > 255) s->sample[0] = 255;
+                output_samples[out++] = (s->sample[0] - 128) << 8;
+                s->sample[s->channels - 1] += s->sol_table[n2];
+                if (s->sample[s->channels - 1] < 0) s->sample[s->channels - 1] = 0;
+                if (s->sample[s->channels - 1] > 255) s->sample[s->channels - 1] = 255;
+                output_samples[out++] = (s->sample[s->channels - 1] - 128) << 8;
+            }
+        } else {
+            while (in < buf_size) {
+                int n;
+                n = buf[in++];
+                if (n & 0x80) s->sample[channel_number] -= s->sol_table[n & 0x7F];
+                else s->sample[channel_number] += s->sol_table[n & 0x7F];
+                SATURATE_S16(s->sample[channel_number]);
+                output_samples[out++] = s->sample[channel_number];
+                /* toggle channel */
+                channel_number ^= s->channels - 1;
+            }
+        }
+        break;
     }
 
     *data_size = out * sizeof(short);
@@ -241,3 +320,14 @@ AVCodec xan_dpcm_decoder = {
     NULL,
     dpcm_decode_frame,
 };
+
+AVCodec sol_dpcm_decoder = {
+    "sol_dpcm",
+    CODEC_TYPE_AUDIO,
+    CODEC_ID_SOL_DPCM,
+    sizeof(DPCMContext),
+    dpcm_decode_init,
+    NULL,
+    NULL,
+    dpcm_decode_frame,
+};
diff --git a/libavcodec/qdrw.c b/libavcodec/qdrw.c
new file mode 100644
index 0000000000..0adb5f49a1
--- /dev/null
+++ b/libavcodec/qdrw.c
@@ -0,0 +1,153 @@
+/*
+ * QuickDraw (qdrw) codec
+ * Copyright (c) 2004 Konstantin Shishkov
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+ 
+/**
+ * @file qdrw.c
+ * Apple QuickDraw codec.
+ */
+ 
+#include "avcodec.h"
+#include "mpegvideo.h"
+
+typedef struct QdrawContext{
+    AVCodecContext *avctx;
+    AVFrame pic;
+    uint8_t palette[256*3];
+} QdrawContext;
+
+static int decode_frame(AVCodecContext *avctx, 
+                        void *data, int *data_size,
+                        uint8_t *buf, int buf_size)
+{
+    QdrawContext * const a = avctx->priv_data;
+    AVFrame * const p= (AVFrame*)&a->pic;
+    uint8_t* outdata;
+    int colors;
+    int i;
+    
+    /* special case for last picture */
+    if (buf_size == 0) {
+        return 0;
+    }
+
+    if(p->data[0])
+        avctx->release_buffer(avctx, p);
+
+    p->reference= 0;
+    if(avctx->get_buffer(avctx, p) < 0){
+        av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+        return -1;
+    }
+    p->pict_type= I_TYPE;
+    p->key_frame= 1;
+
+    outdata = a->pic.data[0];
+    
+    buf += 0x68; /* jump to palette */
+    colors = BE_32(buf);
+    buf += 4;
+    
+    if(colors < 0 || colors > 256) {
+        av_log(avctx, AV_LOG_ERROR, "Error color count - %i(0x%X)\n", colors, colors);
+        return -1;
+    }
+    
+    for (i = 0; i <= colors; i++) {
+        int idx;
+        idx = BE_16(buf); /* color index */
+        buf += 2;
+        
+        a->palette[idx * 3 + 0] = *buf++;
+        buf++;
+        a->palette[idx * 3 + 1] = *buf++;
+        buf++;
+        a->palette[idx * 3 + 2] = *buf++;
+        buf++;
+    }
+
+    if (colors)
+        a->pic.palette_has_changed = 1;
+
+    buf += 18; /* skip unneeded data */
+    for (i = 0; i < avctx->height; i++) {
+        int size, left, code, pix;
+        uint8_t *next;
+        uint8_t *out;
+        int tsize = 0;
+        
+        /* decode line */
+        out = outdata;
+        size = BE_16(buf); /* size of packed line */
+        buf += 2;
+        left = size;
+        next = buf + size;
+        while (left > 0) {
+            code = *buf++;
+            if (code & 0x80 ) { /* run */
+                int i;
+                pix = *buf++;
+                for (i = 0; i < 257 - code; i++) {
+                    *out++ = a->palette[pix * 3 + 0];
+                    *out++ = a->palette[pix * 3 + 1];
+                    *out++ = a->palette[pix * 3 + 2];
+                }
+                tsize += 257 - code;
+                left -= 2;
+            } else { /* copy */
+                int i, pix;
+                for (i = 0; i <= code; i++) {
+                    pix = *buf++;
+                    *out++ = a->palette[pix * 3 + 0];
+                    *out++ = a->palette[pix * 3 + 1];
+                    *out++ = a->palette[pix * 3 + 2];
+                }
+                left -= 2 + code;
+                tsize += code + 1;
+            }
+        }
+        buf = next;
+        outdata += a->pic.linesize[0];
+    }
+
+    *data_size = sizeof(AVFrame);
+    *(AVFrame*)data = a->pic;
+    
+    return buf_size;
+}
+
+static int decode_init(AVCodecContext *avctx){
+//    QdrawContext * const a = avctx->priv_data;
+
+    avctx->pix_fmt= PIX_FMT_RGB24;
+
+    return 0;
+}
+
+AVCodec qdraw_decoder = {
+    "qdraw",
+    CODEC_TYPE_VIDEO,
+    CODEC_ID_QDRAW,
+    sizeof(QdrawContext),
+    decode_init,
+    NULL,
+    NULL,
+    decode_frame,
+    CODEC_CAP_DR1,
+};
diff --git a/libavformat/Makefile b/libavformat/Makefile
index a391ea2898..ed5416d9ce 100644
--- a/libavformat/Makefile
+++ b/libavformat/Makefile
@@ -16,7 +16,7 @@ OBJS+=mpeg.o mpegts.o mpegtsenc.o ffm.o crc.o img.o img2.o raw.o rm.o \
       avienc.o avidec.o wav.o swf.o au.o gif.o mov.o mpjpeg.o dv.o \
       yuv4mpeg.o 4xm.o flvenc.o flvdec.o movenc.o psxstr.o idroq.o ipmovie.o \
       nut.o wc3movie.o mp3.o westwood.o segafilm.o idcin.o flic.o \
-      sierravmd.o matroska.o
+      sierravmd.o matroska.o sol.o
 
 ifeq ($(CONFIG_RISKY),yes)
 OBJS+= asf.o
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index d7898cf3d3..30a63fa62c 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -98,6 +98,7 @@ void av_register_all(void)
 
     nut_init();
     matroska_init();
+    sol_init();
 
 #ifdef CONFIG_ENCODERS
     /* image formats */
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index d286d29bcf..f9c28435e7 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -487,6 +487,9 @@ int vmd_init(void);
 /* matroska.c */
 int matroska_init(void);
 
+/* sol.c */
+int sol_init(void);
+
 #include "rtp.h"
 
 #include "rtsp.h"
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 01d2204553..001481e0d7 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -115,6 +115,7 @@ static const CodecTag mov_video_tags[] = {
     { CODEC_ID_8BPS, MKTAG('8', 'B', 'P', 'S') }, /* Planar RGB (8BPS) */
     { CODEC_ID_SMC, MKTAG('s', 'm', 'c', ' ') }, /* Apple Graphics (SMC) */
     { CODEC_ID_QTRLE, MKTAG('r', 'l', 'e', ' ') }, /* Apple Animation (RLE) */
+    { CODEC_ID_QDRAW, MKTAG('q', 'd', 'r', 'w') }, /* QuickDraw */
     { CODEC_ID_NONE, 0 },
 };
 
diff --git a/libavformat/sol.c b/libavformat/sol.c
new file mode 100644
index 0000000000..2631310c9b
--- /dev/null
+++ b/libavformat/sol.c
@@ -0,0 +1,166 @@
+/* 
+ * Sierra SOL decoder
+ * Copyright Konstantin Shishkov.
+ *
+ * This library 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 of the License, or (at your option) any later version.
+ *
+ * This library 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 this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/* 
+ * Based on documents from Game Audio Player and own research
+ */
+
+#include "avformat.h"
+#include "avi.h"
+#include "bswap.h"
+
+/* if we don't know the size in advance */
+#define AU_UNKOWN_SIZE ((uint32_t)(~0))
+
+static int sol_probe(AVProbeData *p)
+{
+    /* check file header */
+    uint16_t magic;
+    if (p->buf_size <= 14)
+        return 0;
+    magic=le2me_16(*((uint16_t*)p->buf));
+    if ((magic == 0x0B8D || magic == 0x0C0D || magic == 0x0C8D) &&
+        p->buf[2] == 'S' && p->buf[3] == 'O' &&
+        p->buf[4] == 'L' && p->buf[5] == 0)
+        return AVPROBE_SCORE_MAX;
+    else
+        return 0;
+}
+
+#define SOL_DPCM    1
+#define SOL_16BIT   4
+#define SOL_STEREO 16
+
+static int sol_codec_id(int magic, int type)
+{
+    if (magic == 0x0B8D)
+    {
+        if (type & SOL_DPCM) return CODEC_ID_SOL_DPCM;
+        else return CODEC_ID_PCM_U8;
+    }
+    if (type & SOL_DPCM)
+    {
+        if (type & SOL_16BIT) return CODEC_ID_SOL_DPCM;
+        else if (magic == 0x0C8D) return CODEC_ID_SOL_DPCM;
+        else return CODEC_ID_SOL_DPCM;
+    }
+    if (type & SOL_16BIT) return CODEC_ID_PCM_S16LE;
+    return CODEC_ID_PCM_U8;
+}
+
+static int sol_codec_type(int magic, int type)
+{
+    if (magic == 0x0B8D) return 1;//SOL_DPCM_OLD;
+    if (type & SOL_DPCM)
+    {
+        if (type & SOL_16BIT) return 3;//SOL_DPCM_NEW16;
+        else if (magic == 0x0C8D) return 1;//SOL_DPCM_OLD;
+        else return 2;//SOL_DPCM_NEW8;
+    }
+    return -1;
+}
+
+static int sol_channels(int magic, int type)
+{
+    if (magic == 0x0B8D || !(type & SOL_STEREO)) return 1;
+    return 2;
+}
+    
+static int sol_read_header(AVFormatContext *s,
+                          AVFormatParameters *ap)
+{
+    int size;
+    unsigned int magic,tag;
+    ByteIOContext *pb = &s->pb;
+    unsigned int id, codec, channels, rate, type;
+    AVStream *st;
+
+    /* check ".snd" header */
+    magic = get_le16(pb);
+    tag = get_le32(pb);
+    if (tag != MKTAG('S', 'O', 'L', 0))
+        return -1;
+    rate = get_le16(pb);
+    type = get_byte(pb);
+    size = get_le32(pb);
+    if (magic != 0x0B8D)
+        get_byte(pb); /* newer SOLs contain padding byte */
+    
+    codec = sol_codec_id(magic, type);
+    channels = sol_channels(magic, type);
+    
+    if (codec == CODEC_ID_SOL_DPCM)
+        id = sol_codec_type(magic, type);
+    else id = 0;
+    
+    /* now we are ready: build format streams */
+    st = av_new_stream(s, 0);
+    if (!st)
+        return -1;
+    st->codec.codec_type = CODEC_TYPE_AUDIO;
+    st->codec.codec_tag = id;
+    st->codec.codec_id = codec;
+    st->codec.channels = channels;
+    st->codec.sample_rate = rate;
+    return 0;
+}
+
+#define MAX_SIZE 4096
+
+static int sol_read_packet(AVFormatContext *s,
+                          AVPacket *pkt)
+{
+    int ret;
+
+    if (url_feof(&s->pb))
+        return -EIO;
+    if (av_new_packet(pkt, MAX_SIZE))
+        return -EIO;
+    pkt->stream_index = 0;
+
+    ret = get_buffer(&s->pb, pkt->data, pkt->size);
+    if (ret < 0)
+        av_free_packet(pkt);
+    /* note: we need to modify the packet size here to handle the last
+       packet */
+    pkt->size = ret;
+    return 0;
+}
+
+static int sol_read_close(AVFormatContext *s)
+{
+    return 0;
+}
+
+static AVInputFormat sol_iformat = {
+    "sol",
+    "Sierra SOL Format",
+    0,
+    sol_probe,
+    sol_read_header,
+    sol_read_packet,
+    sol_read_close,
+    pcm_read_seek,
+};
+
+int sol_init(void)
+{
+    av_register_input_format(&sol_iformat);
+    return 0;
+}