nsv (Nullsoft streaming video) demuxer

Patch by Reza Jelveh <reza (dot) jelveh (at) tu-harburg (dot) de>


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@12176 b3059339-0415-0410-9bf9-f77b7e298cf2

6 files changed, 389 insertions, 6 deletions

diff --git a/libmpdemux/Makefile b/libmpdemux/Makefile
index 224acdc55e..1a2b18dc72 100644
--- a/libmpdemux/Makefile
+++ b/libmpdemux/Makefile
@@ -3,7 +3,7 @@ LIBNAME = libmpdemux.a
 
 include ../config.mak
 
-SRCS = mp3_hdr.c video.c mpeg_hdr.c cache2.c asfheader.c aviheader.c aviprint.c muxer.c muxer_avi.c muxer_mpeg.c demux_asf.c demux_avi.c demux_mov.c parse_mp4.c demux_mpg.c demux_ty.c demux_ty_osd.c demux_pva.c demux_viv.c demuxer.c dvdnav_stream.c open.c parse_es.c stream.c stream_file.c stream_netstream.c stream_vcd.c stream_null.c stream_ftp.c tv.c tvi_dummy.c tvi_v4l.c tvi_v4l2.c tvi_bsdbt848.c frequencies.c demux_fli.c demux_real.c demux_y4m.c yuv4mpeg.c yuv4mpeg_ratio.c demux_nuv.c demux_film.c demux_roq.c mf.c demux_mf.c demux_audio.c demux_demuxers.c demux_ogg.c demux_bmp.c cdda.c demux_rawaudio.c demux_rawvideo.c cddb.c cdinfo.c demux_rawdv.c ai_alsa.c ai_alsa1x.c ai_oss.c audio_in.c demux_smjpeg.c demux_lmlm4.c cue_read.c extension.c demux_gif.c demux_ts.c demux_realaud.c url.c muxer_rawvideo.c demux_lavf.c
+SRCS = mp3_hdr.c video.c mpeg_hdr.c cache2.c asfheader.c aviheader.c aviprint.c muxer.c muxer_avi.c muxer_mpeg.c demux_asf.c demux_avi.c demux_mov.c parse_mp4.c demux_mpg.c demux_ty.c demux_ty_osd.c demux_pva.c demux_viv.c demuxer.c dvdnav_stream.c open.c parse_es.c stream.c stream_file.c stream_netstream.c stream_vcd.c stream_null.c stream_ftp.c tv.c tvi_dummy.c tvi_v4l.c tvi_v4l2.c tvi_bsdbt848.c frequencies.c demux_fli.c demux_real.c demux_y4m.c yuv4mpeg.c yuv4mpeg_ratio.c demux_nuv.c demux_film.c demux_roq.c mf.c demux_mf.c demux_audio.c demux_demuxers.c demux_ogg.c demux_bmp.c cdda.c demux_rawaudio.c demux_rawvideo.c cddb.c cdinfo.c demux_rawdv.c ai_alsa.c ai_alsa1x.c ai_oss.c audio_in.c demux_smjpeg.c demux_lmlm4.c cue_read.c extension.c demux_gif.c demux_ts.c demux_realaud.c url.c muxer_rawvideo.c demux_lavf.c demux_nsv.c
 ifeq ($(XMMS_PLUGINS),yes)
 SRCS += demux_xmms.c
 endif 
diff --git a/libmpdemux/demux_nsv.c b/libmpdemux/demux_nsv.c
new file mode 100644
index 0000000000..661c12e6e1
--- /dev/null
+++ b/libmpdemux/demux_nsv.c
@@ -0,0 +1,350 @@
+
+/*
+ * Nullsoft Streaming Video demuxer
+ * for MPlayer
+ * by Reza Jelveh <reza.jelveh@tuhh.de>
+ * seeking and PCM audio not yet supported
+ * PCM needs extra audio chunk "miniheader" parsing
+ * Based on a'rpis g2 work
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "config.h"
+#include "mp_msg.h"
+#include "help_mp.h"
+#include "stream.h"
+#include "demuxer.h"
+#include "stheader.h"
+
+typedef struct {
+    float   v_pts;  
+    int video_pack_no;
+    unsigned int a_format;
+    unsigned int v_format;
+    unsigned char fps;            
+} nsv_priv_t;
+
+/**
+ * Seeking still to be implemented
+ */
+void demux_seek_nsv ( demuxer_t *demuxer, float rel_seek_secs, int flags )
+{
+// seeking is not yet implemented
+}
+
+
+int demux_nsv_fill_buffer ( demuxer_t *demuxer )
+{  
+    unsigned char hdr[17];
+    // for the extra data
+    unsigned char aux[6];
+    int i_aux = 0;
+    // videolen = audio chunk length, audiolen = video chunk length
+    int videolen,audiolen; 
+
+    sh_video_t *sh_video = NULL;
+//  sh_audio_t *sh_audio = NULL;
+
+    nsv_priv_t * priv = demuxer->priv;
+
+    sh_video = demuxer->video->sh ;
+
+    // if the audio/video chunk has no new header the first 2 bytes will be discarded 0xBEEF 
+    // or rather 0xEF 0xBE
+    stream_read(demuxer->stream,hdr,7);
+    if(stream_eof(demuxer->stream)) return 0;
+    // sometimes instead of 0xBEEF as described for the next audio/video chunk we get
+    // a whole new header
+    
+    mp_dbg(MSGT_DEMUX,MSGL_DBG2,"demux_nsv: %08X %08X\n",hdr[0]<<8|hdr[1],stream_tell(demuxer->stream));
+    switch(hdr[0]<<8|hdr[1]) {
+        case 0x4E53:
+            if(hdr[2]==0x56 && hdr[3]==0x73){
+                // NSVs
+                // get the header since there is no more metaheader after the first one 
+                // there is no more need to skip that
+                stream_read(demuxer->stream,hdr+7,17-7);
+                stream_read(demuxer->stream,hdr,7);
+            }
+            break;
+        
+        case 0xEFBE:
+            break;
+
+        default:
+            break;
+    }
+
+    sh_video->pts = priv->v_pts =demuxer->video->pts=  priv->video_pack_no *
+         (float)sh_video->frametime;
+
+    demuxer->filepos=stream_tell(demuxer->stream);
+
+
+    mp_dbg(MSGT_DEMUX,MSGL_DBG2,"demux_nsv: %08X: %02X %02X | %02X %02X %02X | %02X %02X  \n",
+    (int)demuxer->filepos, hdr[0],hdr[1],hdr[2],hdr[3],hdr[4],hdr[5],hdr[6]);
+
+    // read video:
+    videolen=(hdr[2]>>4)|(hdr[3]<<4)|(hdr[4]<<0xC);
+    //check if we got extra data like subtitles here
+    if( (hdr[2]&0x0f) != 0x0 ) {
+        stream_read( demuxer->stream, aux, 6); 
+
+        i_aux = aux[0]|aux[1]<<8;
+        // We skip this extra data 
+        stream_skip( demuxer->stream, i_aux );
+        i_aux+=6;
+        videolen -= i_aux;
+    }
+    
+
+    // we need to return an empty packet when the 
+    // video frame is empty otherwise the stream will fasten up 
+    if(demuxer->video){
+        if( (hdr[2]&0x0f) != 0x0 )
+            ds_read_packet(demuxer->video,demuxer->stream,videolen,priv->v_pts,demuxer->filepos-i_aux,0);
+        else 
+            ds_read_packet(demuxer->video,demuxer->stream,videolen,priv->v_pts,demuxer->filepos,0);
+    }
+    else
+        stream_skip(demuxer->stream,videolen);
+
+    // read audio:
+    audiolen=(hdr[5])|(hdr[6]<<8);
+    // we need to return an empty packet when the 
+    // audio frame is empty otherwise the stream will fasten up 
+    if(demuxer->audio){
+        ds_read_packet(demuxer->audio,demuxer->stream,audiolen,priv->v_pts,demuxer->filepos+videolen,0);
+    }
+    else
+        stream_skip(demuxer->stream,audiolen);
+
+    ++priv->video_pack_no;
+
+    return 1;
+    
+}
+
+
+demuxer_t* demux_open_nsv ( demuxer_t* demuxer )
+{
+    // last 2 bytes 17 and 18 are unknown but right after that comes the length
+    unsigned char hdr[17];
+    int videolen,audiolen;
+    sh_video_t *sh_video = NULL;
+    sh_audio_t *sh_audio = NULL;
+    
+    
+    // vp6x magic keyframe ee if no keyframe f0 if keyframe correct if theres a mistake
+//  unsigned char magic;
+    
+    nsv_priv_t * priv = malloc(sizeof(nsv_priv_t));
+    demuxer->priv=priv;
+    priv->video_pack_no=0;
+    /* Create a new video stream header */
+    sh_video = new_sh_video ( demuxer, 0 );
+
+    /* Make sure the demuxer knows about the new video stream header
+     * (even though new_sh_video() ought to take care of it)
+     */
+    demuxer->video->sh = sh_video;
+
+    /* Make sure that the video demuxer stream header knows about its
+     * parent video demuxer stream (this is getting wacky), or else
+     * video_read_properties() will choke
+         */
+    sh_video->ds = demuxer->video;
+        
+      /* disable seeking yet to be fixed*/
+    demuxer->seekable = 0;
+        
+    stream_read(demuxer->stream,hdr,4);
+    if(stream_eof(demuxer->stream)) return 0;
+    
+    /*** if we detected the file to be nsv and there was neither eof nor a header
+    **** that means that its most likely a shoutcast stream so we will need to seek
+    **** to the first occurance of the NSVs header                      ****/
+    if(!(hdr[0]==0x4E && hdr[1]==0x53 && hdr[2]==0x56)){
+        // todo: replace this with a decent string search algo 
+        while(1){
+            stream_read(demuxer->stream,hdr,1);
+            if(stream_eof(demuxer->stream)) 
+                return 0;
+            if(hdr[0]!=0x4E)
+                continue;
+                
+            stream_read(demuxer->stream,hdr+1,1);
+            
+            if(stream_eof(demuxer->stream)) 
+                return 0;
+            if(hdr[1]!=0x53)
+                continue;
+                
+            stream_read(demuxer->stream,hdr+2,1);
+            
+            if(stream_eof(demuxer->stream)) 
+                return 0;
+            if(hdr[2]!=0x56)
+                continue;
+                
+            stream_read(demuxer->stream,hdr+3,1);
+            
+            if(stream_eof(demuxer->stream)) 
+                return 0;
+            if(hdr[3]!=0x73)
+                continue;
+            
+            break;
+        }
+    }
+    if(hdr[0]==0x4E && hdr[1]==0x53 && hdr[2]==0x56){
+        // NSV header!
+        if(hdr[3]==0x73){
+            // NSVs
+            stream_read(demuxer->stream,hdr+4,17-4);            
+        }
+
+        if(hdr[3]==0x66){
+            // NSVf
+            int len=stream_read_dword_le(demuxer->stream);
+            // TODO: parse out metadata!!!!
+            stream_skip(demuxer->stream,len-8);
+                
+            // NSVs
+            stream_read(demuxer->stream,hdr,17);        
+        }
+
+        // dummy debug message
+        mp_msg(MSGT_DEMUX,MSGL_V,"demux_nsv: Header: %.12s\n",hdr);
+
+        //   bytes 8-11   audio codec fourcc
+        // PCM fourcc needs extra parsing for every audio chunk, yet to implement
+        if( strncmp(hdr+8,"NONE", 4)){//&&strncmp(hdr+8,"VLB ", 4)){
+            sh_audio = new_sh_audio ( demuxer, 0 );
+            demuxer->audio->sh = sh_audio;
+            sh_audio->format=mmioFOURCC(hdr[8],hdr[9],hdr[10],hdr[11]);
+            sh_audio->ds = demuxer->audio;
+        }
+        priv->a_format=mmioFOURCC(hdr[8],hdr[9],hdr[10],hdr[11]);
+
+        // !!!!!!!!!!!!!!!!!!!!
+        // RemoveMe!!! This is just to avoid lot of bugreports!
+        // !!!!!!!!!!!!!!!!!!!!
+        if(priv->a_format==mmioFOURCC('V','L','B',' '))
+            mp_msg(MSGT_DEMUX,MSGL_WARN,"demux_nsv: VLB audio does not work yet. Expect problems.\n");
+
+        
+        // store hdr fps 
+        priv->fps=hdr[16];
+            
+        if (strncmp(hdr+4,"NONE", 4)) {
+            //   bytes 4-7  video codec fourcc
+            priv->v_format = sh_video->format=mmioFOURCC(hdr[4],hdr[5],hdr[6],hdr[7]);
+        
+            // new video stream! parse header
+            sh_video->disp_w=hdr[12]|(hdr[13]<<8);
+            sh_video->disp_h=hdr[14]|(hdr[15]<<8);
+            sh_video->bih=(BITMAPINFOHEADER*)calloc(1,sizeof(BITMAPINFOHEADER));
+            sh_video->bih->biSize=sizeof(BITMAPINFOHEADER);
+            sh_video->bih->biPlanes=1; 
+            sh_video->bih->biBitCount=24;
+            sh_video->bih->biWidth=hdr[12]|(hdr[13]<<8);
+            sh_video->bih->biHeight=hdr[14]|(hdr[15]<<8);
+            memcpy(&sh_video->bih->biCompression,hdr+4,4);
+            sh_video->bih->biSizeImage=sh_video->bih->biWidth*sh_video->bih->biHeight*3;
+
+            // !!!!!!!!!!!!!!!!!!!!
+            // RemoveMe!!! This is just to avoid lot of bugreports!
+            // !!!!!!!!!!!!!!!!!!!!
+            if(priv->v_format==mmioFOURCC('V','P','5','0'))
+                mp_msg(MSGT_DEMUX,MSGL_WARN,"demux_nsv: VP50 video does not work yet. Expect problems.\n");
+            
+            // here we search for the correct keyframe 
+            // vp6 keyframe is when the 2nd byte of the vp6 header is 0x36
+            if(priv->v_format==mmioFOURCC('V','P','6','1')){
+                stream_read(demuxer->stream,hdr,9);
+                videolen=(hdr[2]>>4)|(hdr[3]<<4)|(hdr[4]<<0xC);
+                audiolen=(hdr[5])|(hdr[6]<<8);
+                mp_msg(MSGT_DEMUX,MSGL_V,"demux_nsv: Header: %08X\n",*hdr);
+                stream_skip(demuxer->stream, videolen+audiolen-2);
+                stream_read(demuxer->stream,hdr,9);
+
+                if (hdr[8]!=0x36) {
+                    while(hdr[8]!=0x36){
+                        videolen=(hdr[2]>>4)|(hdr[3]<<4)|(hdr[4]<<0xC);
+                        audiolen=(hdr[5])|(hdr[6]<<8);
+                        stream_skip(demuxer->stream, videolen+audiolen-2);
+                        stream_read(demuxer->stream,hdr,9);
+                        if(hdr[0]==0x4E){
+                            if(stream_eof(demuxer->stream)) return 0;
+                            stream_skip(demuxer->stream,8);
+                            stream_read(demuxer->stream,hdr,9);
+                        }
+                    }
+                }
+
+
+                stream_seek(demuxer->stream,stream_tell(demuxer->stream)-9);
+            } 
+        }
+
+            
+        switch(priv->fps){
+        case 0x80:
+            sh_video->fps=30;
+            break;
+        case 0x81:
+            sh_video->fps=(float)30000.0/1001.0;
+            break;
+        case 0x82:
+            sh_video->fps=25;
+            break;
+        case 0x83:
+            sh_video->fps=(float)24000.0/1001.0;
+            break;
+        case 0x85:
+            sh_video->fps=(float)15000.0/1001.0;
+            break;
+        default:
+            sh_video->fps = (float)priv->fps;
+        }       
+        sh_video->frametime = (float)1.0 / (float)sh_video->fps;
+    }   
+
+    
+    
+    return demuxer;
+}
+
+int nsv_check_file ( demuxer_t* demuxer )
+{
+    unsigned int id;
+
+    /* Store original position */
+//  off_t orig_pos = stream_tell(demuxer->stream);
+
+    mp_msg ( MSGT_DEMUX, MSGL_V, "Checking for Nullsoft Streaming Video\n" );
+   
+    //---- check NSVx header:
+    id=stream_read_dword_le(demuxer->stream);
+    if(id!=mmioFOURCC('N','S','V','f') && id!=mmioFOURCC('N','S','V','s'))
+        return 0; // not an NSV file
+    
+    stream_reset(demuxer->stream); // clear EOF
+    stream_seek(demuxer->stream,demuxer->stream->start_pos);
+
+    
+    return 1;
+}
+
+void demux_close_nsv(demuxer_t* demuxer) {
+    nsv_priv_t* priv = demuxer->priv;
+
+    if(!priv)
+        return;
+    free(priv);
+
+}
diff --git a/libmpdemux/demuxer.c b/libmpdemux/demuxer.c
index fceb8990b9..7d69dbb6d8 100644
--- a/libmpdemux/demuxer.c
+++ b/libmpdemux/demuxer.c
@@ -123,6 +123,7 @@ extern void demux_close_roq(demuxer_t* demuxer);
 extern void demux_close_film(demuxer_t* demuxer);
 extern void demux_close_bmp(demuxer_t* demuxer);
 extern void demux_close_fli(demuxer_t* demuxer);
+extern void demux_close_nsv(demuxer_t* demuxer);
 extern void demux_close_nuv(demuxer_t* demuxer);
 extern void demux_close_audio(demuxer_t* demuxer);
 extern void demux_close_ogg(demuxer_t* demuxer);
@@ -175,6 +176,8 @@ void free_demuxer(demuxer_t *demuxer){
       demux_close_bmp(demuxer); break;
     case DEMUXER_TYPE_FLI:
       demux_close_fli(demuxer); break;
+    case DEMUXER_TYPE_NSV:
+      demux_close_nsv(demuxer); break;
     case DEMUXER_TYPE_NUV:
       demux_close_nuv(demuxer); break;
     case DEMUXER_TYPE_MPEG_TY:
@@ -299,6 +302,7 @@ int demux_asf_fill_buffer(demuxer_t *demux);
 int demux_mov_fill_buffer(demuxer_t *demux,demux_stream_t* ds);
 int demux_vivo_fill_buffer(demuxer_t *demux);
 int demux_real_fill_buffer(demuxer_t *demuxer);
+int demux_nsv_fill_buffer(demuxer_t *demux);
 int demux_nuv_fill_buffer(demuxer_t *demux);
 int demux_rtp_fill_buffer(demuxer_t *demux, demux_stream_t* ds);
 int demux_rawdv_fill_buffer(demuxer_t *demuxer);
@@ -344,6 +348,7 @@ int demux_fill_buffer(demuxer_t *demux,demux_stream_t *ds){
     case DEMUXER_TYPE_RAWDV: return demux_rawdv_fill_buffer(demux);
 #endif
     case DEMUXER_TYPE_REAL: return demux_real_fill_buffer(demux);
+    case DEMUXER_TYPE_NSV: return demux_nsv_fill_buffer(demux);
     case DEMUXER_TYPE_NUV: return demux_nuv_fill_buffer(demux);
 #ifdef USE_TV
     case DEMUXER_TYPE_TV: return demux_tv_fill_buffer(demux, ds);
@@ -598,7 +603,9 @@ extern int pva_check_file(demuxer_t * demuxer);
 extern demuxer_t * demux_open_pva(demuxer_t * demuxer);
 extern int real_check_file(demuxer_t *demuxer);
 extern void demux_open_real(demuxer_t *demuxer);
+extern int nsv_check_file(demuxer_t *demuxer);
 extern int nuv_check_file(demuxer_t *demuxer);
+extern void demux_open_nsv(demuxer_t *demuxer);
 extern void demux_open_nuv(demuxer_t *demuxer);
 extern int demux_audio_open(demuxer_t* demuxer);
 extern int demux_ogg_open(demuxer_t* demuxer);
@@ -715,6 +722,17 @@ if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_ASF){
       demuxer = NULL;
   }
 }
+//=============== Try to open as NSV file: =================
+if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_NSV){
+  demuxer=new_demuxer(stream,DEMUXER_TYPE_NSV,audio_id,video_id,dvdsub_id);
+  if(file_format==DEMUXER_TYPE_NSV||nsv_check_file(demuxer)){
+      mp_msg(MSGT_DEMUXER,MSGL_INFO,MSGTR_Detected_XXX_FileFormat,"Nullsoft Streaming Video");
+      file_format=DEMUXER_TYPE_NSV;
+  } else {
+      free_demuxer(demuxer);
+      demuxer = NULL;
+  }
+}
 //=============== Try to open as NUV file: =================
 if(file_format==DEMUXER_TYPE_UNKNOWN || file_format==DEMUXER_TYPE_NUV){
   demuxer=new_demuxer(stream,DEMUXER_TYPE_NUV,audio_id,video_id,dvdsub_id);
@@ -1192,6 +1210,10 @@ switch(file_format){
    return demuxer;
 //  break;
  }
+ case DEMUXER_TYPE_NSV: {
+  demux_open_nsv(demuxer);
+  break;
+ }
  case DEMUXER_TYPE_NUV: {
   demux_open_nuv(demuxer);
   break;
diff --git a/libmpdemux/demuxer.h b/libmpdemux/demuxer.h
index 256138b2b5..6cfaa1773a 100644
--- a/libmpdemux/demuxer.h
+++ b/libmpdemux/demuxer.h
@@ -44,11 +44,12 @@
 #define DEMUXER_TYPE_MPEG_TY 33
 #define DEMUXER_TYPE_LMLM4 34
 #define DEMUXER_TYPE_LAVF 35
+#define DEMUXER_TYPE_NSV 36
 
 // This should always match the higest demuxer type number.
 // Unless you want to disallow users to force the demuxer to some types
 #define DEMUXER_TYPE_MIN 0
-#define DEMUXER_TYPE_MAX 35
+#define DEMUXER_TYPE_MAX 36
 
 #define DEMUXER_TYPE_DEMUXERS (1<<16)
 // A virtual demuxer type for the network code
diff --git a/libmpdemux/extension.c b/libmpdemux/extension.c
index a069672d52..661d511937 100644
--- a/libmpdemux/extension.c
+++ b/libmpdemux/extension.c
@@ -48,7 +48,8 @@ static struct {
         { "it", DEMUXER_TYPE_XMMS },
         { "mid", DEMUXER_TYPE_XMMS },
         { "midi", DEMUXER_TYPE_XMMS },
-        { "vqf", DEMUXER_TYPE_XMMS }
+        { "vqf", DEMUXER_TYPE_XMMS },
+        { "nsv", DEMUXER_TYPE_NSV }
 };
 
 int demuxer_type_by_filename(char* filename){
diff --git a/libmpdemux/network.c b/libmpdemux/network.c
index 6597434411..e2afd50f2e 100644
--- a/libmpdemux/network.c
+++ b/libmpdemux/network.c
@@ -92,7 +92,9 @@ static struct {
 	// Real Media
 	{ "audio/x-pn-realaudio", DEMUXER_TYPE_REAL },
 	// OGG Streaming
-	{ "application/x-ogg", DEMUXER_TYPE_OGG }
+	{ "application/x-ogg", DEMUXER_TYPE_OGG },
+	// NullSoft Streaming Video
+	{ "video/nsv", DEMUXER_TYPE_NSV}
 
 };
 
@@ -778,8 +780,14 @@ extension=NULL;
 							mp_msg(MSGT_NETWORK,MSGL_INFO,"Public : %s\n", atoi(field_data)?"yes":"no"); field_data = NULL;
 						if( (field_data = http_get_field(http_hdr, "icy-br")) != NULL )
 							mp_msg(MSGT_NETWORK,MSGL_INFO,"Bitrate: %skbit/s\n", field_data); field_data = NULL;
-						// Ok, we have detected an mp3 stream
-						*file_format = DEMUXER_TYPE_AUDIO;
+						
+						// If content-type == video/nsv we most likely have a winamp video stream 
+						// otherwise it should be mp3. if there are more types consider adding mime type 
+						// handling like later
+						if( !strcmp((field_data = http_get_field(http_hdr, "content-type")),"video/nsv"))
+							*file_format = DEMUXER_TYPE_NSV;
+						else
+							*file_format = DEMUXER_TYPE_AUDIO;
 						return 0;
 					}
 					case 400: // Server Full
@@ -1248,6 +1256,7 @@ streaming_start(stream_t *stream, int *demuxer_type, URL_t *url) {
 		case DEMUXER_TYPE_OGG:
 		case DEMUXER_TYPE_PLAYLIST:
 		case DEMUXER_TYPE_UNKNOWN:
+		case DEMUXER_TYPE_NSV: 
 			// Generic start, doesn't need to filter
 			// the network stream, it's a raw stream
 			ret = nop_streaming_start( stream );