diff --git a/libavformat/Makefile b/libavformat/Makefile
index 944a5dd1c2..e54bcc2209 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 sol.o electronicarts.o
+      sierravmd.o matroska.o sol.o electronicarts.o nsvdec.o
 
 ifeq ($(CONFIG_RISKY),yes)
 OBJS+= asf.o
@@ -83,6 +83,11 @@ ifeq ($(BUILD_SHARED),yes)
 SLIB= $(SLIBPREF)avformat$(SLIBSUF)
 endif
 
+EXTRALIBS+=-lavcodec -L../libavcodec
+ifeq ($(CONFIG_MP3LAME),yes)
+EXTRALIBS+=-lmp3lame
+endif
+
 SRCS := $(OBJS:.o=.c) $(PPOBJS:.o=.cpp)
 
 all: $(LIB) $(SLIB)
diff --git a/libavformat/allformats.c b/libavformat/allformats.c
index c91c55cfa3..712269bfad 100644
--- a/libavformat/allformats.c
+++ b/libavformat/allformats.c
@@ -110,6 +110,7 @@ void av_register_all(void)
     matroska_init();
     sol_init();
     ea_init();
+    nsvdec_init();
 
 #ifdef CONFIG_ENCODERS
     /* image formats */
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 2f6cc3c4ef..626c0d0d68 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -510,6 +510,9 @@ int sol_init(void);
 /* electronicarts.c */
 int ea_init(void);
 
+/* nsvdec.c */
+int nsvdec_init(void);
+
 #include "rtp.h"
 
 #include "rtsp.h"
diff --git a/libavformat/nsvdec.c b/libavformat/nsvdec.c
new file mode 100644
index 0000000000..fbec970f49
--- /dev/null
+++ b/libavformat/nsvdec.c
@@ -0,0 +1,775 @@
+/*
+ * NSV decoder.
+ * Copyright (c) 2004 The FFmpeg Project.
+ *
+ * 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
+ */
+#include "avformat.h"
+#include "avi.h"
+
+#define DEBUG
+//#define DEBUG_DUMP_INDEX // XXX dumbdriving-271.nsv breaks with it commented!!
+//#define DEBUG_SEEK
+#define CHECK_SUBSEQUENT_NSVS
+//#define DISABLE_AUDIO
+
+/* max bytes to crawl for trying to resync
+ * stupid streaming servers don't start at chunk boundaries...
+ */
+#define NSV_MAX_RESYNC (500*1024)
+#define NSV_MAX_RESYNC_TRIES 300
+
+/*
+ * First version by Francois Revol - revol@free.fr
+ * References:
+ * (1) http://www.multimedia.cx/nsv-format.txt
+ * seems someone came to the same conclusions as me, and updated it:
+ * (2) http://www.stud.ktu.lt/~vitslav/nsv/nsv-format.txt
+ *     http://www.stud.ktu.lt/~vitslav/nsv/
+ * Sample files:
+ * (S1) http://www.nullsoft.com/nsv/samples/
+ * http://www.nullsoft.com/nsv/samples/faster.nsv
+ * http://streamripper.sourceforge.net/openbb/read.php?TID=492&page=4
+ */
+
+/*
+ * notes on the header (Francois Revol):
+ * 
+ * It is followed by strings, then a table, but nothing tells 
+ * where the table begins according to (1). After checking faster.nsv,
+ * I believe NVSf[16-19] gives the size of the strings data
+ * (that is the offset of the data table after the header).
+ * After checking all samples from (S1) all confirms this.
+ *
+ * Then, about NSVf[12-15], faster.nsf has 179700. When veiwing it in VLC,
+ * I noticed there was about 1 NVSs chunk/s, so I ran
+ * strings faster.nsv | grep NSVs | wc -l
+ * which gave me 180. That leads me to think that NSVf[12-15] might be the 
+ * file length in milliseconds.
+ * Let's try that:
+ * for f in *.nsv; do HTIME="$(od -t x4 "$f" | head -1 | sed 's/.* //')"; echo "'$f' $((0x$HTIME))s = $((0x$HTIME/1000/60)):$((0x$HTIME/1000%60))"; done
+ * except for nstrailer (which doesn't have an NSVf header), it repports correct time.
+ *
+ * nsvtrailer.nsv (S1) does not have any NSVf header, only NSVs chunks, 
+ * so the header seems to not be mandatory. (for streaming).
+ * 
+ * index slice duration check (excepts nsvtrailer.nsv):
+ * for f in [^n]*.nsv; do DUR="$(ffmpeg -i "$f" 2>/dev/null | grep 'NSVf duration' | cut -d ' ' -f 4)"; IC="$(ffmpeg -i "$f" 2>/dev/null | grep 'INDEX ENTRIES' | cut -d ' ' -f 2)"; echo "duration $DUR, slite time $(($DUR/$IC))"; done
+ */
+
+/*
+ * TODO:
+ * - handle timestamps !!!
+ * - use index
+ * - mime-type in probe()
+ * - seek
+ */
+
+#ifdef DEBUG
+#define PRINT(_v) printf _v
+#else
+#define PRINT(_v) 
+#endif
+
+#if 0
+struct NSVf_header {
+    uint32_t chunk_tag; /* 'NSVf' */
+    uint32_t chunk_size;
+    uint32_t file_size; /* max 4GB ??? noone learns anything it seems :^) */
+    uint32_t file_length; //unknown1;  /* what about MSB of file_size ? */
+    uint32_t info_strings_size; /* size of the info strings */ //unknown2;
+    uint32_t table_entries;
+    uint32_t table_entries_used; /* the left ones should be -1 */
+};
+
+struct NSVs_header {
+    uint32_t chunk_tag; /* 'NSVs' */
+    uint32_t v4cc;      /* or 'NONE' */
+    uint32_t a4cc;      /* or 'NONE' */
+    uint16_t vwidth;    /* assert(vwidth%16==0) */
+    uint16_t vheight;   /* assert(vheight%16==0) */
+    uint8_t framerate;  /* value = (framerate&0x80)?frtable[frameratex0x7f]:framerate */
+    uint16_t unknown;
+};
+
+struct nsv_avchunk_header {
+    uint8_t vchunk_size_lsb;
+    uint16_t vchunk_size_msb; /* value = (vchunk_size_msb << 4) | (vchunk_size_lsb >> 4) */
+    uint16_t achunk_size;
+};
+
+struct nsv_pcm_header {
+    uint8_t bits_per_sample;
+    uint8_t channel_count;
+    uint16_t sample_rate;
+};
+#endif
+
+/* variation from avi.h */
+/*typedef struct CodecTag {
+    int id;
+    unsigned int tag;
+} CodecTag;*/
+
+/* tags */
+
+#define T_NSVF MKTAG('N', 'S', 'V', 'f') /* file header */
+#define T_NSVS MKTAG('N', 'S', 'V', 's') /* chunk header */
+#define T_TOC2 MKTAG('T', 'O', 'C', '2') /* extra index marker */
+#define T_NONE MKTAG('N', 'O', 'N', 'E') /* null a/v 4CC */
+#define T_SUBT MKTAG('S', 'U', 'B', 'T') /* subtitle aux data */
+#define T_ASYN MKTAG('A', 'S', 'Y', 'N') /* async a/v aux marker */
+#define T_KEYF MKTAG('K', 'E', 'Y', 'F') /* video keyframe aux marker (addition) */
+
+#define TB_NSVF MKBETAG('N', 'S', 'V', 'f')
+#define TB_NSVS MKBETAG('N', 'S', 'V', 's')
+
+/* hardcoded stream indices */
+#define NSV_ST_VIDEO 0
+#define NSV_ST_AUDIO 1
+#define NSV_ST_SUBT 2
+
+enum NSVStatus {
+    NSV_UNSYNC,
+    NSV_FOUND_NSVF,
+    NSV_HAS_READ_NSVF,
+    NSV_FOUND_NSVS,
+    NSV_HAS_READ_NSVS,
+    NSV_FOUND_BEEF,
+    NSV_GOT_VIDEO,
+    NSV_GOT_AUDIO,
+};
+
+typedef struct NSVStream {
+    int frame_offset; /* current frame (video) or byte (audio) counter
+                         (used to compute the pts) */
+    int scale;
+    int rate;    
+    int sample_size; /* audio only data */
+    int start;
+    
+    int new_frame_offset; /* temporary storage (used during seek) */
+    int cum_len; /* temporary storage (used during seek) */
+} NSVStream;
+
+typedef struct {
+    int  base_offset;
+    int  NSVf_end;
+    uint32_t *nsvf_index_data;
+    int index_entries;
+    enum NSVStatus state;
+    AVPacket ahead[2]; /* [v, a] if .data is !NULL there is something */
+    /* cached */
+    int64_t duration;
+    uint32_t vtag, atag;
+    uint16_t vwidth, vheight;
+    //DVDemuxContext* dv_demux;
+} NSVContext;
+
+static const CodecTag nsv_codec_video_tags[] = {
+    { CODEC_ID_VP3, MKTAG('V', 'P', '3', ' ') },
+    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '0') },
+    { CODEC_ID_VP3, MKTAG('V', 'P', '3', '1') },
+/*
+    { CODEC_ID_VP4, MKTAG('V', 'P', '4', ' ') },
+    { CODEC_ID_VP4, MKTAG('V', 'P', '4', '0') },
+    { CODEC_ID_VP5, MKTAG('V', 'P', '5', ' ') },
+    { CODEC_ID_VP5, MKTAG('V', 'P', '5', '0') },
+    { CODEC_ID_VP6, MKTAG('V', 'P', '6', ' ') },
+    { CODEC_ID_VP6, MKTAG('V', 'P', '6', '0') },
+    { CODEC_ID_VP6, MKTAG('V', 'P', '6', '1') },
+    { CODEC_ID_VP6, MKTAG('V', 'P', '6', '2') },
+*/
+    { CODEC_ID_XVID, MKTAG('X', 'V', 'I', 'D') }, /* cf sample xvid decoder from nsv_codec_sdk.zip */
+    { CODEC_ID_RAWVIDEO, MKTAG('R', 'G', 'B', '3') },
+    { 0, 0 },
+};
+
+static const CodecTag nsv_codec_audio_tags[] = {
+    { CODEC_ID_MP3, MKTAG('M', 'P', '3', ' ') },
+    { CODEC_ID_AAC, MKTAG('A', 'A', 'C', ' ') },
+    { CODEC_ID_AAC, MKTAG('A', 'A', 'C', 'P') }, /* _CUTTED__MUXED_2 Heads - Out Of The City.nsv */
+    { CODEC_ID_PCM_U16LE, MKTAG('P', 'C', 'M', ' ') },
+    { 0, 0 },
+};
+
+static const uint64_t nsv_framerate_table[] = {
+    ((uint64_t)AV_TIME_BASE * 30),
+    ((uint64_t)AV_TIME_BASE * 30000 / 1001), /* 29.97 */
+    ((uint64_t)AV_TIME_BASE * 25),
+    ((uint64_t)AV_TIME_BASE * 24000 / 1001), /* 23.98 */
+    ((uint64_t)AV_TIME_BASE * 30), /* ?? */
+    ((uint64_t)AV_TIME_BASE * 15000 / 1001), /* 14.98 */
+};
+
+//static int nsv_load_index(AVFormatContext *s);
+static int nsv_read_chunk(AVFormatContext *s, int fill_header);
+
+#ifdef DEBUG
+static void print_tag(const char *str, unsigned int tag, int size)
+{
+    printf("%s: tag=%c%c%c%c\n",
+           str, tag & 0xff,
+           (tag >> 8) & 0xff,
+           (tag >> 16) & 0xff,
+           (tag >> 24) & 0xff);
+}
+#endif
+
+/* try to find something we recognize, and set the state accordingly */
+static int nsv_resync(AVFormatContext *s)
+{
+    NSVContext *nsv = s->priv_data;
+    ByteIOContext *pb = &s->pb;
+    uint32 v = 0;
+    int i;
+    
+    PRINT(("%s(), offset = %Ld, state = %d\n", __FUNCTION__, url_ftell(pb), nsv->state));
+    
+    //nsv->state = NSV_UNSYNC;
+    
+    for (i = 0; i < NSV_MAX_RESYNC; i++) {
+        if (url_feof(pb)) {
+            PRINT(("NSV EOF\n"));
+            nsv->state = NSV_UNSYNC;
+            return -1;
+        }
+        v <<= 8;
+        v |= get_byte(pb);
+/*
+        if (i < 8) {
+            PRINT(("NSV resync: [%d] = %02x\n", i, v & 0x0FF));
+        }
+*/
+        
+        if ((v & 0x0000ffff) == 0xefbe) { /* BEEF */
+            PRINT(("NSV resynced on BEEF after %d bytes\n", i+1));
+            nsv->state = NSV_FOUND_BEEF;
+            return 0;
+        }
+        /* we read as big endian, thus the MK*BE* */
+        if (v == TB_NSVF) { /* NSVf */
+            PRINT(("NSV resynced on NSVf after %d bytes\n", i+1));
+            nsv->state = NSV_FOUND_NSVF;
+            return 0;
+        }
+        if (v == MKBETAG('N', 'S', 'V', 's')) { /* NSVs */
+            PRINT(("NSV resynced on NSVs after %d bytes\n", i+1));
+            nsv->state = NSV_FOUND_NSVS;
+            return 0;
+        }
+        
+    }
+    PRINT(("NSV sync lost\n"));
+    return -1;
+}
+
+static int nsv_parse_NSVf_header(AVFormatContext *s, AVFormatParameters *ap)
+{
+    NSVContext *nsv = s->priv_data;
+    ByteIOContext *pb = &s->pb;
+    uint32_t tag, tag1, handler;
+    int codec_type, stream_index, frame_period, bit_rate, scale, rate;
+    unsigned int file_size, size, nb_frames;
+    int64_t duration;
+    int strings_size;
+    int table_entries;
+    int table_entries_used;
+    int i, n;
+    AVStream *st;
+    NSVStream *ast;
+
+    PRINT(("%s()\n", __FUNCTION__));
+
+    nsv->state = NSV_UNSYNC; /* in case we fail */
+    
+    size = get_le32(pb);
+    if (size < 28)
+        return -1;
+    nsv->NSVf_end = size;
+
+    //s->file_size = (uint32_t)get_le32(pb);
+    file_size = (uint32_t)get_le32(pb);
+    PRINT(("NSV NSVf chunk_size %ld\n", size));
+    PRINT(("NSV NSVf file_size %Ld\n", file_size));
+
+    duration = get_le32(pb); /* in ms */
+    nsv->duration = duration * AV_TIME_BASE / 1000; /* convert */
+    PRINT(("NSV NSVf duration %Ld ms\n", duration));
+    // XXX: store it in AVStreams
+
+    strings_size = get_le32(pb);
+    table_entries = get_le32(pb);
+    table_entries_used = get_le32(pb);
+    PRINT(("NSV NSVf info-strings size: %d, table entries: %d, bis %d\n", 
+            strings_size, table_entries, table_entries_used));
+    if (url_feof(pb))
+        return -1;
+    
+    PRINT(("NSV got header; filepos %Ld\n", url_ftell(pb)));
+
+    if (strings_size > 0) {
+        char *strings; /* last byte will be '\0' to play safe with str*() */
+        char *p, *endp;
+        char *token, *value;
+        char quote;
+
+        p = strings = av_mallocz(strings_size + 1);
+        endp = strings + strings_size;
+        get_buffer(pb, strings, strings_size);
+        while (p < endp) {
+            while (*p == ' ')
+                p++; /* strip out spaces */
+            if (p >= endp-2)
+                break;
+            token = p;
+            p = strchr(p, '=');
+            if (!p || p >= endp-2)
+                break;
+            *p++ = '\0';
+            quote = *p++;
+            value = p;
+            p = strchr(p, quote);
+            if (!p || p >= endp)
+                break;
+            *p++ = '\0';
+            PRINT(("NSV NSVf INFO: %s='%s'\n", token, value));
+            if (!strcmp(token, "ASPECT")) {
+                /* don't care */
+            } else if (!strcmp(token, "CREATOR") || !strcmp(token, "Author")) {
+                strncpy(s->author, value, 512-1);
+            } else if (!strcmp(token, "Copyright")) {
+                strncpy(s->copyright, value, 512-1);
+            } else if (!strcmp(token, "TITLE") || !strcmp(token, "Title")) {
+                strncpy(s->title, value, 512-1);
+            }
+        }
+        av_free(strings);
+    }
+    if (url_feof(pb))
+        return -1;
+    
+    PRINT(("NSV got infos; filepos %Ld\n", url_ftell(pb)));
+
+    if (table_entries_used > 0) {
+        nsv->index_entries = table_entries_used;
+        nsv->nsvf_index_data = av_malloc(table_entries * sizeof(uint32_t));
+        get_buffer(pb, nsv->nsvf_index_data, table_entries * sizeof(uint32_t));
+    }
+
+    PRINT(("NSV got index; filepos %Ld\n", url_ftell(pb)));
+    
+#ifdef DEBUG_DUMP_INDEX
+#define V(v) ((v<0x20 || v > 127)?'.':v)
+    /* dump index */
+    PRINT(("NSV %d INDEX ENTRIES:\n", table_entries));
+    PRINT(("NSV [dataoffset][fileoffset]\n", table_entries));
+    for (i = 0; i < table_entries; i++) {
+        unsigned char b[8];
+        url_fseek(pb, size + nsv->nsvf_index_data[i], SEEK_SET);
+        get_buffer(pb, b, 8);
+        PRINT(("NSV [0x%08lx][0x%08lx]: %02x %02x %02x %02x %02x %02x %02x %02x"
+           "%c%c%c%c%c%c%c%c\n",
+           nsv->nsvf_index_data[i], size + nsv->nsvf_index_data[i],
+           b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7], 
+           V(b[0]), V(b[1]), V(b[2]), V(b[3]), V(b[4]), V(b[5]), V(b[6]), V(b[7]) ));
+    }
+    //url_fseek(pb, size, SEEK_SET); /* go back to end of header */
+#undef V
+#endif
+    
+    url_fseek(pb, nsv->base_offset + size, SEEK_SET); /* required for dumbdriving-271.nsv (2 extra bytes) */
+    
+    if (url_feof(pb))
+        return -1;
+    nsv->state = NSV_HAS_READ_NSVF;
+    return 0;
+}
+
+static int nsv_parse_NSVs_header(AVFormatContext *s, AVFormatParameters *ap)
+{
+    NSVContext *nsv = s->priv_data;
+    ByteIOContext *pb = &s->pb;
+    uint32_t vtag, atag;
+    uint16_t vwidth, vheight;
+    uint32_t framerate;
+    uint16_t unknown;
+    AVStream *st;
+    NSVStream *nst;
+    PRINT(("%s()\n", __FUNCTION__));
+
+    vtag = get_le32(pb);
+    atag = get_le32(pb);
+    vwidth = get_le16(pb);
+    vheight = get_le16(pb);
+    framerate = (uint8_t)get_byte(pb);
+    /* XXX how big must the table be ? */
+    /* seems there is more to that... */
+    PRINT(("NSV NSVs framerate code %2x\n", framerate));
+    framerate = (framerate & 0x80)?(nsv_framerate_table[framerate & 0x7F]):(framerate*AV_TIME_BASE);
+    unknown = get_le16(pb);
+#ifdef DEBUG
+    print_tag("NSV NSVs vtag", vtag, 0);
+    print_tag("NSV NSVs atag", atag, 0);
+    PRINT(("NSV NSVs vsize %dx%d\n", vwidth, vheight));
+    PRINT(("NSV NSVs framerate %2x\n", framerate));
+#endif
+    
+    /* XXX change to ap != NULL ? */
+    if (s->nb_streams == 0) { /* streams not yet published, let's do that */
+        nsv->vtag = vtag;
+        nsv->atag = atag;
+        nsv->vwidth = vwidth;
+        nsv->vheight = vwidth;
+        if (vtag != T_NONE) {
+            st = av_new_stream(s, NSV_ST_VIDEO);
+            if (!st)
+                goto fail;
+
+            nst = av_mallocz(sizeof(NSVStream));
+            if (!nst)
+                goto fail;
+            st->priv_data = nst;
+            st->codec.codec_type = CODEC_TYPE_VIDEO;
+            st->codec.codec_tag = vtag;
+            st->codec.codec_id = codec_get_id(nsv_codec_video_tags, vtag);
+            st->codec.width = vwidth;
+            st->codec.height = vheight;
+            st->codec.bits_per_sample = 24; /* depth XXX */
+
+            st->codec.frame_rate = framerate;
+            st->codec.frame_rate_base = AV_TIME_BASE;
+            av_set_pts_info(st, 64, AV_TIME_BASE, framerate);
+            st->start_time = 0;
+            st->duration = nsv->duration;
+        }
+        if (atag != T_NONE) {
+#ifndef DISABLE_AUDIO
+            st = av_new_stream(s, NSV_ST_AUDIO);
+            if (!st)
+                goto fail;
+
+            nst = av_mallocz(sizeof(NSVStream));
+            if (!nst)
+                goto fail;
+            st->priv_data = nst;
+            st->codec.codec_type = CODEC_TYPE_AUDIO;
+            st->codec.codec_tag = atag;
+            st->codec.codec_id = codec_get_id(nsv_codec_audio_tags, atag);
+            st->start_time = 0;
+            st->duration = nsv->duration;
+            
+            st->need_parsing = 1; /* for PCM we will read a chunk later and put correct info */
+            /* XXX:FIXME */
+            //st->codec.channels = 2; //XXX:channels;
+            //st->codec.sample_rate = 1000;
+            //av_set_pts_info(st, 64, 1, st->codec.sample_rate);
+
+#endif
+        }
+#ifdef CHECK_SUBSEQUENT_NSVS
+    } else {
+        if (nsv->vtag != vtag || nsv->atag != atag || nsv->vwidth != vwidth || nsv->vheight != vwidth) {
+            PRINT(("NSV NSVs header values differ from the first one!!!\n"));
+            //return -1;
+        }
+#endif /* CHECK_SUBSEQUENT_NSVS */
+    }
+
+    nsv->state = NSV_HAS_READ_NSVS;
+    return 0;
+fail:
+    /* XXX */
+    nsv->state = NSV_UNSYNC;
+    return -1;
+}
+
+static int nsv_read_header(AVFormatContext *s, AVFormatParameters *ap)
+{
+    NSVContext *nsv = s->priv_data;
+    ByteIOContext *pb = &s->pb;
+    uint32_t tag, tag1, handler;
+    int codec_type, stream_index, frame_period, bit_rate, scale, rate;
+    unsigned int size, nb_frames;
+    int table_entries;
+    int i, n, err;
+    AVStream *st;
+    NSVStream *ast;
+
+    PRINT(("%s()\n", __FUNCTION__));
+    PRINT(("filename '%s'\n", s->filename));
+
+    nsv->state = NSV_UNSYNC;
+    nsv->ahead[0].data = nsv->ahead[1].data = NULL;
+    
+    for (i = 0; i < NSV_MAX_RESYNC_TRIES; i++) {
+        if (nsv_resync(s) < 0)
+            return -1;
+        if (nsv->state == NSV_FOUND_NSVF)
+            err = nsv_parse_NSVf_header(s, ap);
+            /* we need the first NSVs also... */
+        if (nsv->state == NSV_FOUND_NSVS) {
+            err = nsv_parse_NSVs_header(s, ap);
+            break; /* we just want the first one */
+        }
+    }
+    if (s->nb_streams < 1) /* no luck so far */
+        return -1;
+    /* now read the first chunk, so we can attempt to decode more info */
+    err = nsv_read_chunk(s, 1);
+    
+    PRINT(("parsed header\n"));
+    return 0;
+}
+
+static int nsv_read_chunk(AVFormatContext *s, int fill_header)
+{
+    NSVContext *nsv = s->priv_data;
+    ByteIOContext *pb = &s->pb;
+    AVStream *st[2] = {NULL, NULL};
+    NSVStream *nst;
+    AVPacket *pkt;
+    uint32 v = 0;
+    int i, err = 0;
+    uint8 auxcount; /* number of aux metadata, also 4 bits of vsize */
+    uint32 vsize;
+    uint16 asize;
+    uint16 auxsize;
+    uint32 auxtag;
+    
+    PRINT(("%s(%d)\n", __FUNCTION__, fill_header));
+    
+    if (nsv->ahead[0].data || nsv->ahead[1].data)
+        return 0; //-1; /* hey! eat what you've in your plate first! */
+
+null_chunk_retry:
+    if (url_feof(pb))
+        return -1;
+    
+    for (i = 0; i < NSV_MAX_RESYNC_TRIES && nsv->state < NSV_FOUND_NSVS && !err; i++)
+        err = nsv_resync(s);
+    if (err < 0)
+        return err;
+    if (nsv->state == NSV_FOUND_NSVS)
+        err = nsv_parse_NSVs_header(s, NULL);
+    if (err < 0)
+        return err;
+    if (nsv->state != NSV_HAS_READ_NSVS && nsv->state != NSV_FOUND_BEEF)
+        return -1;
+    
+    auxcount = get_byte(pb);
+    vsize = get_le16(pb);
+    asize = get_le16(pb);
+    vsize = (vsize << 4) | (auxcount >> 4);
+    auxcount &= 0x0f;
+    PRINT(("NSV CHUNK %d aux, %ld bytes video, %d bytes audio\n", auxcount, vsize, asize));
+    /* skip aux stuff */
+    for (i = 0; i < auxcount; i++) {
+        auxsize = get_le16(pb);
+        auxtag = get_le32(pb);
+        PRINT(("NSV aux data: '%c%c%c%c', %d bytes\n", 
+              (auxtag & 0x0ff), 
+              ((auxtag >> 8) & 0x0ff), 
+              ((auxtag >> 16) & 0x0ff),
+              ((auxtag >> 24) & 0x0ff),
+              auxsize));
+        url_fskip(pb, auxsize);
+        vsize -= auxsize + sizeof(uint16) + sizeof(uint32); /* that's becoming braindead */
+    }
+    
+    if (url_feof(pb))
+        return -1;
+    if (!vsize && !asize) {
+        nsv->state = NSV_UNSYNC;
+        goto null_chunk_retry;
+    }
+    
+    /* map back streams to v,a */
+    if (s->streams[0])
+        st[s->streams[0]->id] = s->streams[0];
+    if (s->streams[1])
+        st[s->streams[1]->id] = s->streams[1];
+    
+    if (vsize/* && st[NSV_ST_VIDEO]*/) {
+        nst = st[NSV_ST_VIDEO]->priv_data;
+        pkt = &nsv->ahead[NSV_ST_VIDEO];
+        av_new_packet(pkt, vsize);
+        get_buffer(pb, pkt->data, vsize);
+        pkt->stream_index = st[NSV_ST_VIDEO]->index;//NSV_ST_VIDEO;
+        pkt->dts = nst->frame_offset++;
+        pkt->flags |= PKT_FLAG_KEY; /* stupid format has no way to tell XXX: try the index */
+/*
+        for (i = 0; i < MIN(8, vsize); i++)
+            PRINT(("NSV video: [%d] = %02x\n", i, pkt->data[i]));
+*/
+    }
+    if (asize/*st[NSV_ST_AUDIO]*/) {
+        nst = st[NSV_ST_AUDIO]->priv_data;
+        pkt = &nsv->ahead[NSV_ST_AUDIO];
+        /* read raw audio specific header on the first audio chunk... */
+        /* on ALL audio chunks ?? seems so! */
+        if (asize && st[NSV_ST_AUDIO]->codec.codec_tag == MKTAG('P', 'C', 'M', ' ')/* && fill_header*/) {
+            uint8_t bps;
+            uint8_t channels;
+            uint16_t samplerate;
+            bps = get_byte(pb);
+            channels = get_byte(pb);
+            samplerate = get_le16(pb);
+            asize-=4;
+            PRINT(("NSV RAWAUDIO: bps %d, nchan %d, srate %ld\n", bps, channels, samplerate));
+            if (fill_header) {
+                st[NSV_ST_AUDIO]->need_parsing = 0; /* we know everything */
+                if (bps != 16) {
+                    PRINT(("NSV AUDIO bit/sample != 16 (%d)!!!\n", bps));
+                }
+                bps /= channels; // ???
+                if (bps == 8)
+                    st[NSV_ST_AUDIO]->codec.codec_id = CODEC_ID_PCM_U8;
+                samplerate /= 4;/* UGH ??? XXX */
+                channels = 1;
+                st[NSV_ST_AUDIO]->codec.channels = channels;
+                st[NSV_ST_AUDIO]->codec.sample_rate = samplerate;
+                av_set_pts_info(st[NSV_ST_AUDIO], 64, 1, 
+                                st[NSV_ST_AUDIO]->codec.sample_rate);
+                PRINT(("NSV RAWAUDIO: bps %d, nchan %d, srate %ld\n", bps, channels, samplerate));
+            }
+        }
+        av_new_packet(pkt, asize);
+        if (asize)
+            get_buffer(pb, pkt->data, asize);
+        pkt->stream_index = st[NSV_ST_AUDIO]->index;//NSV_ST_AUDIO;
+        //pkt->dts = nst->frame_offset;
+        //if (nst->sample_size)
+        //    pkt->dts /= nst->sample_size;
+        nst->frame_offset += asize; // XXX: that's valid only for PCM !?
+    }
+    
+    //pkt->flags |= PKT_FLAG_KEY;
+    nsv->state = NSV_UNSYNC;
+    return 0;
+}
+
+
+static int nsv_read_packet(AVFormatContext *s, AVPacket *pkt)
+{
+    NSVContext *nsv = s->priv_data;
+    ByteIOContext *pb = &s->pb;
+    int i, err = 0;
+
+    PRINT(("%s()\n", __FUNCTION__));
+    
+    /* in case we don't already have something to eat ... */
+    if (nsv->ahead[0].data == NULL && nsv->ahead[1].data == NULL)
+        err = nsv_read_chunk(s, 0);
+    if (err < 0)
+        return err;
+    
+    /* now pick one of the plates */
+    for (i = 0; i < 2; i++) {
+        if (nsv->ahead[i].data) {
+        	PRINT(("%s: using cached packet[%d]\n", __FUNCTION__, i));
+            /* avoid the cost of new_packet + memcpy(->data) */
+            memcpy(pkt, &nsv->ahead[i], sizeof(AVPacket));
+            nsv->ahead[i].data = NULL; /* we ate that one */
+            return pkt->size;
+        }
+    }
+    
+    /* this restaurant is not approvisionned :^] */
+    return -1;
+}
+
+static int nsv_read_seek(AVFormatContext *s, int stream_index, int64_t timestamp, int flags)
+{
+    NSVContext *avi = s->priv_data;
+    AVStream *st;
+    NSVStream *ast;
+    int frame_number, i;
+    int64_t pos;
+
+    return -1;
+}
+
+static int nsv_read_close(AVFormatContext *s)
+{
+    int i;
+    NSVContext *nsv = s->priv_data;
+
+    if (nsv->index_entries)
+        av_free(nsv->nsvf_index_data);
+
+#if 0
+
+    for(i=0;i<s->nb_streams;i++) {
+        AVStream *st = s->streams[i];
+        NSVStream *ast = st->priv_data;
+        if(ast){
+            av_free(ast->index_entries);
+            av_free(ast);
+        }
+        av_free(st->codec.extradata);
+        av_free(st->codec.palctrl);
+    }
+
+#endif
+    return 0;
+}
+
+static int nsv_probe(AVProbeData *p)
+{
+    int i;
+    PRINT(("nsv_probe(), buf_size %d\n", p->buf_size));
+    /* check file header */
+    if (p->buf_size <= 32)
+        return 0;
+    if (p->buf[0] == 'N' && p->buf[1] == 'S' &&
+        p->buf[2] == 'V' && p->buf[3] == 'f')
+        return AVPROBE_SCORE_MAX;
+    /* streamed files might not have any header */
+    if (p->buf[0] == 'N' && p->buf[1] == 'S' &&
+        p->buf[2] == 'V' && p->buf[3] == 's')
+        return AVPROBE_SCORE_MAX;
+    /* XXX: do streamed files always start at chunk boundary ?? */
+    /* or do we need to search NSVs in the byte stream ? */
+    /* seems the servers don't bother starting clean chunks... */
+    /* sometimes even the first header is at 9KB or something :^) */
+    for (i = 1; i < p->buf_size - 3; i++) {
+        if (p->buf[i+0] == 'N' && p->buf[i+1] == 'S' &&
+            p->buf[i+2] == 'V' && p->buf[i+3] == 's')
+            return AVPROBE_SCORE_MAX-20;
+    }
+    /* so we'll have more luck on extension... */
+    if (match_ext(p->filename, "nsv"))
+        return AVPROBE_SCORE_MAX-20;
+    /* FIXME: add mime-type check */
+    return 0;
+}
+
+static AVInputFormat nsv_iformat = {
+    "nsv",
+    "NullSoft Video format",
+    sizeof(NSVContext),
+    nsv_probe,
+    nsv_read_header,
+    nsv_read_packet,
+    nsv_read_close,
+    nsv_read_seek,
+};
+
+int nsvdec_init(void)
+{
+    av_register_input_format(&nsv_iformat);
+    return 0;
+}