X-Git-Url: http://git.asbjorn.biz/?p=swftools.git;a=blobdiff_plain;f=src%2Fwav2swf.c;h=89add267044b0325643b9e8bd3152b4553d19a01;hp=45ef407bd0f6dba44161d1f7feaca02f55760155;hb=a5f50be98c64a4f4cd25758a43386528a6998aad;hpb=9e4852618a107375483987d95090121737e677af

diff --git a/src/wav2swf.c b/src/wav2swf.c
index 45ef407..89add26 100644
--- a/src/wav2swf.c
+++ b/src/wav2swf.c
@@ -1,5 +1,5 @@
-/* swfextract.c
-   Allows to extract parts of the swf into a new file.
+/* wav2swf.c
+   Converts WAV/WAVE files to SWF.
 
    Part of the swftools package.
 
@@ -18,6 +18,8 @@ char * filename = 0;
 char * outputname = "output.swf";
 int verbose = 2;
 
+#define DEFINESOUND_MP3 1 //define sound uses mp3?- undefine for raw sound.
+
 struct options_t options[] =
 {
  {"o","output"},
@@ -25,6 +27,9 @@ struct options_t options[] =
  {"d","definesound"},
  {"l","loop"},
  {"r","framerate"},
+ {"s","samplerate"},
+ {"b","bitrate"},
+ {"C","cgi"},
  {"V","version"},
  {0,0}
 };
@@ -32,6 +37,12 @@ struct options_t options[] =
 static int loop = 0;
 static int definesound = 0;
 static int framerate = 0;
+static int samplerate = 11025;
+static int bitrate = 32;
+static int do_cgi = 0;
+
+static int mp3_bitrates[] =
+{ 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160, 0};
 
 int args_callback_option(char*name,char*val)
 {
@@ -49,18 +60,64 @@ int args_callback_option(char*name,char*val)
     }
     else if(!strcmp(name, "l")) {
 	loop = atoi(val);
+	definesound = 1;
 	return 1;
     }
     else if(!strcmp(name, "v")) {
 	verbose ++;
 	return 0;
     }
+    else if(!strcmp(name, "C")) {
+	do_cgi = 1;
+	return 0;
+    }
     else if(!strcmp(name, "r")) {
 	float f;
 	sscanf(val, "%f", &f);
 	framerate = f*256;
 	return 1;
     }
+    else if(!strcmp(name, "s")) {
+	samplerate = atoi(val);
+	if(samplerate > 5000 && samplerate < 6000)
+	    samplerate = 5512;
+	else if(samplerate > 11000 && samplerate < 12000)
+	    samplerate = 11025;
+	else if(samplerate > 22000 && samplerate < 23000)
+	    samplerate = 22050;
+	else if(samplerate > 44000 && samplerate < 45000)
+	    samplerate = 44100;
+	else {
+	    fprintf(stderr, "Invalid samplerate: %d\n", samplerate);
+	    fprintf(stderr, "Allowed values: 11025, 22050\n", samplerate);
+	    exit(1);
+	}
+	return 1;
+    }
+    else if(!strcmp(name, "b")) {
+	int t;
+	int b = atoi(val);
+	if(b<=0) {
+	    fprintf(stderr, "Not a valid bitrate: %s\n", val);
+	    exit(1);
+	}
+	if(b>160) {
+	    fprintf(stderr, "Bitrate must be <144. (%s)\n", val);
+	    exit(1);
+	}
+	for(t=0;mp3_bitrates[t];t++) {
+	    if(b== mp3_bitrates[t]) {
+		bitrate = b;
+		return 1;
+	    }
+	}
+	fprintf(stderr, "Invalid bitrate. Allowed bitrates are:\n");
+	for(t=0;mp3_bitrates[t];t++) {
+	    printf("%d ", mp3_bitrates[t]);
+	}
+	printf("\n");
+	exit(1);
+    }
     else {
         printf("Unknown option: -%s\n", name);
 	exit(1);
@@ -75,10 +132,13 @@ void args_callback_usage(char*name)
 {
     printf("Usage: %s [-o filename] file.wav\n", name);
     printf("\t-v , --verbose\t\t\t Be more verbose\n");
-    printf("\t-d , --definesound\t\t\t Generate a DefineSound tag instead of streaming sound\n");
+    printf("\t-d , --definesound\t\t Generate a DefineSound tag instead of streaming sound\n");
     printf("\t-l , --loop n\t\t\t Loop sound n times (implies -d)\n");
-    printf("\t-r , --framerate fps\t\t\t Set framerate to fps frames per seond\n");
+    printf("\t-r , --framerate fps\t\t Set framerate to fps frames per second\n");
+    printf("\t-s , --samplerate sps\t\t Set samplerate to sps frames per second (default: 11025)\n");
+    printf("\t-b , --bitrate bps\t\t Set mp3 bitrate (default: 32)\n");
     printf("\t-o , --output filename\t\t set output filename (default: output.swf)\n");
+    printf("\t-C , --cgi\t\t\t For use as CGI- prepend http header, write to stdout\n");
     printf("\t-V , --version\t\t\t Print program version and exit\n");
 }
 int args_callback_command(char*name,char*val)
@@ -91,6 +151,10 @@ int args_callback_command(char*name,char*val)
     return 0;
 }
 
+extern int swf_mp3_bitrate;
+extern int swf_mp3_out_samplerate;
+extern int swf_mp3_in_samplerate;
+
 int main (int argc,char ** argv)
 { 
     SWF swf;
@@ -106,32 +170,38 @@ int main (int argc,char ** argv)
     int blocksize;
     float blockspersecond;
     float framespersecond;
+    float samplesperframe;
     float framesperblock;
-    float framepos = 0;
+    float samplesperblock;
     U16* samples;
     int numsamples;
 
     processargs(argc, argv);
 
-    if(!definesound && framerate) {
-	printf("Warning! The -r option is experimental and won't work without -d\n");
-    }
+    blocksize = 576;
+    blockspersecond = (float)samplerate/blocksize;
 
-    blocksize = 1152;
-    blockspersecond = 11025.0/blocksize;
     framespersecond = blockspersecond;
     if(framerate)
 	framespersecond = framerate/256.0;
-    framesperblock = framespersecond/blockspersecond;
 
+    framesperblock = framespersecond / blockspersecond;
+    samplesperframe = (blocksize * blockspersecond) / framespersecond;
+    samplesperblock = samplesperframe * framesperblock;
+    
     initLog(0,-1,0,0,-1,verbose);
 
+    if(!filename) {
+	msg("<fatal> You must supply a filename");
+	exit(1);
+    }
+
     if(!readWAV(filename, &wav))
     {
-	logf("<fatal> Error reading %s", filename);
+	msg("<fatal> Error reading %s", filename);
 	exit(1);
     }
-    convertWAV2mono(&wav,&wav2, 44100);
+    convertWAV2mono(&wav,&wav2, samplerate);
     //printWAVInfo(&wav);
     //printWAVInfo(&wav2);
     samples = (U16*)wav2.data;
@@ -151,34 +221,65 @@ int main (int argc,char ** argv)
     rgb.g = 0xff;
     rgb.b = 0xff;
     swf_SetRGB(tag,&rgb);
+	
+    swf_mp3_bitrate = bitrate;
+    swf_mp3_out_samplerate = samplerate;
+    swf_mp3_in_samplerate = samplerate;
 
     if(!definesound)
     {
+	int oldframepos=-1, newframepos=0;
+	float framesamplepos = 0;
+	float framepos = 0;
+	float samplepos = 0;
+	ActionTAG* a = 0;
+	U16 v1=0,v2=0;
 	tag = swf_InsertTag(tag, ST_SOUNDSTREAMHEAD);
-	swf_SetSoundStreamHead(tag, blocksize);
-
-	logf("<notice> %d blocks", numsamples/(blocksize*2));
-	for(t=0;t<numsamples/(blocksize*2);t++) {
+	swf_SetSoundStreamHead(tag, samplesperframe);
+	msg("<notice> %d blocks", numsamples/blocksize);
+	for(t=0;t<numsamples/blocksize;t++) {
 	    int s;
-	    int oldframe, newframe;
 	    U16*block1;
-	    tag = swf_InsertTag(tag, ST_SOUNDSTREAMBLOCK);
-	    logf("<notice> Writing block %d", t);
-	    block1 = &samples[t*2*blocksize];
-	    swf_SetSoundStreamBlock(tag, block1, 1);
+	    int seek = blocksize - ((int)samplepos - (int)framesamplepos);
 
-	    oldframe = (int)framepos;
+	    if(newframepos!=oldframepos) {
+		tag = swf_InsertTag(tag, ST_SOUNDSTREAMBLOCK);
+		msg("<notice> Starting block %d %d+%d", t, (int)samplepos, (int)blocksize);
+		block1 = &samples[t*blocksize];
+		swf_SetSoundStreamBlock(tag, block1, seek, 1);
+		v1 = v2 = GET16(tag->data);
+	    } else {
+		msg("<notice> Adding data...", t);
+		block1 = &samples[t*blocksize];
+		swf_SetSoundStreamBlock(tag, block1, seek, 0);
+		v1+=v2;
+		PUT16(tag->data, v1);
+	    }
+	    samplepos += blocksize;
+
+	    oldframepos = (int)framepos;
 	    framepos += framesperblock;
-	    newframe = (int)framepos;
-	    for(s=oldframe;s<newframe;s++)
+	    newframepos = (int)framepos;
+
+	    for(s=oldframepos;s<newframepos;s++) {
 		tag = swf_InsertTag(tag, ST_SHOWFRAME);
+		framesamplepos += samplesperframe;
+	    }
 	}
 	tag = swf_InsertTag(tag, ST_END);
     } else {
 	SOUNDINFO info;
 	tag = swf_InsertTag(tag, ST_DEFINESOUND);
 	swf_SetU16(tag, 24); //id
-	swf_SetSoundDefine(tag, samples, numsamples);
+#ifdef DEFINESOUND_MP3
+        swf_SetSoundDefine(tag, samples, numsamples);
+#else
+        swf_SetU8(tag,(/*compression*/0<<4)|(/*rate*/3<<2)|(/*size*/1<<1)|/*mono*/0);
+        swf_SetU32(tag, numsamples); // 44100 -> 11025
+        swf_SetBlock(tag, wav2.data, numsamples*2);
+#endif
+
+
 	tag = swf_InsertTag(tag, ST_STARTSOUND);
 	swf_SetU16(tag, 24); //id
 	memset(&info, 0, sizeof(info));
@@ -188,9 +289,13 @@ int main (int argc,char ** argv)
 	tag = swf_InsertTag(tag, ST_END);
     }
 
-    f = open(outputname,O_WRONLY|O_CREAT|O_TRUNC, 0644);
-    if FAILED(swf_WriteSWF(f,&swf)) fprintf(stderr,"WriteSWF() failed.\n");
-    close(f);
+    if(do_cgi) {
+	if FAILED(swf_WriteCGI(&swf)) fprintf(stderr,"WriteCGI() failed.\n");
+    } else {
+	f = open(outputname,O_WRONLY|O_CREAT|O_TRUNC|O_BINARY, 0644);
+	if FAILED(swf_WriteSWF(f,&swf)) fprintf(stderr,"WriteSWF() failed.\n");
+	close(f);
+    }
 
     swf_FreeTags(&swf);
     return 0;