[MPlayer-dev-eng] [PATCH] nsv demuxer audio fourcc fix

Reza Jelveh reza.jelveh at tuhh.de
Wed Mar 31 16:29:23 CEST 2004


err sorry for the last mail



diff -uNr MPlayer-20040329/libmpdemux/Makefile MPlayer-20040329-nsv2/libmpdemux/Makefile
--- MPlayer-20040329/libmpdemux/Makefile	2004-03-09 15:46:34.000000000 +0100
+++ MPlayer-20040329-nsv2/libmpdemux/Makefile	2004-03-30 08:06:47.000000000 +0200
@@ -3,7 +3,7 @@
 
 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
+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_nsv.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
 ifeq ($(XMMS_PLUGINS),yes)
 SRCS += demux_xmms.c
 endif 
diff -uNr MPlayer-20040329/libmpdemux/demux_nsv.c MPlayer-20040329-nsv2/libmpdemux/demux_nsv.c
--- MPlayer-20040329/libmpdemux/demux_nsv.c	1970-01-01 01:00:00.000000000 +0100
+++ MPlayer-20040329-nsv2/libmpdemux/demux_nsv.c	2004-03-31 16:04:55.000000000 +0200
@@ -0,0 +1,324 @@
+/*
+ * Nullsoft Streaming Video demuxer
+ * for MPlayer
+ * by Reza Jelveh <reza.jelveh at 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"
+
+
+/**
+ * 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];
+	// len1 = audio chunk length, len2 = video chunk length
+	int len1,len2; 
+	
+	sh_video_t *sh_video = NULL;
+	sh_audio_t *sh_audio = NULL;
+
+	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
+	if(hdr[0]==0x4E && hdr[1]==0x53 && hdr[2]==0x56){
+	// NSV header!
+	if(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);
+	
+		
+		// theoretically u could have new codecs or other audio for new audio/video chunks     
+		// 	 bytes 4-7    video codec fourcc
+		sh_video->format=mmioFOURCC(hdr[4],hdr[5],hdr[6],hdr[7]);
+    	
+		// 	 bytes 8-11   audio codec fourcc
+		// PCM fourcc needs extra parsing for every audio chunk, yet to implement
+		if( !strncmp(hdr+8,"NONE", 4)){
+			demuxer->audio= NULL;
+		}
+		else {
+			sh_audio = demuxer->audio->sh;
+			sh_audio->format=mmioFOURCC(hdr[8],hdr[9],hdr[10],hdr[11]);
+		}
+			
+		// new video stream! parse header
+		
+		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;
+		
+		sh_video->disp_w = sh_video->bih->biWidth;
+  		sh_video->disp_h = sh_video->bih->biHeight;
+		
+		
+		// set the framerate
+		// if the msb of byte 16 is one we have a and standard fractional framerate
+		switch(hdr[16]){
+		case 0x81:
+			sh_video->fps = (float)30000.0/1001.0;
+			sh_video->frametime = 1.0 / sh_video->fps;
+			break;
+		case 0x85:
+			sh_video->fps = (float)15000.0/1001.0;
+			sh_video->frametime = 1.0 / sh_video->fps;
+			break;
+			
+		default:
+		    sh_video->fps = (float)hdr[16];
+			sh_video->frametime = 1.0 / sh_video->fps;
+			
+		
+		}
+		
+		stream_read(demuxer->stream,hdr,7);
+
+	}	
+	}	
+	demuxer->filepos=stream_tell(demuxer->stream);
+	
+	
+	
+	mp_msg(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:
+    len1=(hdr[2]>>4)|(hdr[3]<<4)|(hdr[4]<<0xC);
+    if(len1){
+	if(demuxer->video)
+	    ds_read_packet(demuxer->video,demuxer->stream,len1,0,demuxer->filepos,0);
+	else
+	    stream_skip(demuxer->stream,len1);
+    }
+    // read audio:
+    len2=(hdr[5])|(hdr[6]<<8);
+    if(len2){
+	if(demuxer->audio)
+	    ds_read_packet(demuxer->audio,demuxer->stream,len2,0,demuxer->filepos+len1,0);
+	else
+	    stream_skip(demuxer->stream,len2);
+    }	    
+
+    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 len1,len2;
+	sh_video_t *sh_video = NULL;
+	sh_audio_t *sh_audio = NULL;
+    
+	
+	/* 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)){
+		while(1){
+			stream_read(demuxer->stream,hdr,1);
+			//mp_msg(MSGT_DEMUX,MSGL_WARN,"demux_nsv: Unknown FPS id: %s\n",hdr);
+			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;
+			//mp_msg(MSGT_DEMUX,MSGL_WARN,"demux_nsv: Unknown FPS id: %s\n",hdr);
+			
+			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,4);
+			stream_read(demuxer->stream,hdr,17);
+		
+		}
+		// 	 bytes 4-7    video codec fourcc
+		sh_video->format=mmioFOURCC(hdr[4],hdr[5],hdr[6],hdr[7]);
+		
+		// 	 bytes 8-11   audio codec fourcc
+		// PCM fourcc needs extra parsing for every audio chunk, yet to implement
+		if( !strncmp(hdr+8,"NONE", 4)){
+		// better set this in any case
+			demuxer->audio = NULL; 
+		}
+		else {
+			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;
+		}
+			
+		// dummy debug message
+		mp_msg(MSGT_DEMUX,MSGL_WARN,"demux_nsv: Unknown FPS id: %s\n",hdr);
+		
+		// new video stream! parse header
+		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;
+
+		sh_video->disp_w = sh_video->bih->biWidth;
+		sh_video->disp_h = sh_video->bih->biHeight;
+		
+		// if the msb of byte 16 is one we have a and standard fractional framerate
+		switch(hdr[16]){
+		case 0x81:
+			sh_video->fps=(float)30000.0/1001.0;
+			sh_video->frametime = (float)1.0 / (float)sh_video->fps;
+			break;
+		case 0x85:
+			sh_video->fps=(float)15000.0/1001.0;
+			sh_video->frametime = (float)1.0 / (float)sh_video->fps;
+			break;
+		default:
+		    sh_video->fps = (float)hdr[16];
+			sh_video->frametime = 1.0 / sh_video->fps;
+		}		
+
+	}   
+
+	
+	
+	//discard byte 17 and 18 the next 5 are the size of audio/video chunk 
+	
+    stream_read(demuxer->stream,hdr,7);
+	demuxer->filepos=stream_tell(demuxer->stream);
+	
+    mp_msg(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:
+    len1=(hdr[2]>>4)|(hdr[3]<<4)|(hdr[4]<<0xC);
+    if(len1){
+	if(demuxer->video)
+	    ds_read_packet(demuxer->video,demuxer->stream,len1,0,demuxer->filepos,0);
+	else
+	    stream_skip(demuxer->stream,len1);
+    }
+    // read audio:
+    len2=(hdr[5])|(hdr[6]<<8);
+    if(len2){
+	if(demuxer->audio)
+ 	    ds_read_packet(demuxer->audio,demuxer->stream,len2,0,demuxer->filepos+len1,0);
+	else
+	    stream_skip(demuxer->stream,len2);
+    }	    
+
+
+    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) {
+
+}
diff -uNr MPlayer-20040329/libmpdemux/demuxer.c MPlayer-20040329-nsv2/libmpdemux/demuxer.c
--- MPlayer-20040329/libmpdemux/demuxer.c	2004-02-22 07:20:48.000000000 +0100
+++ MPlayer-20040329-nsv2/libmpdemux/demuxer.c	2004-03-30 08:40:04.000000000 +0200
@@ -123,6 +123,7 @@
 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);
@@ -174,6 +175,8 @@
       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:
@@ -295,6 +298,7 @@
 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);
@@ -339,6 +343,7 @@
     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);
@@ -590,7 +595,9 @@
 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);
@@ -705,6 +712,17 @@
       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);
@@ -1169,6 +1187,10 @@
    return demuxer;
 //  break;
  }
+ case DEMUXER_TYPE_NSV: {
+  demux_open_nsv(demuxer);
+  break;
+ }
  case DEMUXER_TYPE_NUV: {
   demux_open_nuv(demuxer);
   break;
diff -uNr MPlayer-20040329/libmpdemux/demuxer.h MPlayer-20040329-nsv2/libmpdemux/demuxer.h
--- MPlayer-20040329/libmpdemux/demuxer.h	2003-12-08 20:33:38.000000000 +0100
+++ MPlayer-20040329-nsv2/libmpdemux/demuxer.h	2004-03-30 08:08:19.000000000 +0200
@@ -43,11 +43,12 @@
 #define DEMUXER_TYPE_REALAUDIO 32
 #define DEMUXER_TYPE_MPEG_TY 33
 #define DEMUXER_TYPE_LMLM4 34
+#define DEMUXER_TYPE_NSV 35
 
 // 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 34
+#define DEMUXER_TYPE_MAX 35
 
 #define DEMUXER_TYPE_DEMUXERS (1<<16)
 // A virtual demuxer type for the network code
diff -uNr MPlayer-20040329/libmpdemux/network.c MPlayer-20040329-nsv2/libmpdemux/network.c
--- MPlayer-20040329/libmpdemux/network.c	2004-03-13 17:10:02.000000000 +0100
+++ MPlayer-20040329-nsv2/libmpdemux/network.c	2004-03-30 08:21:32.000000000 +0200
@@ -92,7 +92,9 @@
 	// 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 @@
 							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 @@
 		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 );




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