X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fwav2swf.c;h=d27f172ea28f5b5cc797661e8f128b24868f856b;hb=f03de7ce28ee2c39fdb9f658359359429135c862;hp=6bf2ec7cb245304fb930a10d79586f62d7baad5b;hpb=ce6c31f0ee258d163dbc62553d2f0d9400a568b2;p=swftools.git

diff --git a/src/wav2swf.c b/src/wav2swf.c
index 6bf2ec7..d27f172 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.
 
@@ -10,6 +10,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include "../lib/rfxswf.h"
+#include "../lib/log.h"
 #include "../lib/args.h"
 #include "wav.h"
 
@@ -17,14 +18,25 @@ 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"},
  {"v","verbose"},
+ {"d","definesound"},
+ {"l","loop"},
+ {"r","framerate"},
+ {"b","bitrate"},
  {"V","version"},
  {0,0}
 };
 
+static int loop = 0;
+static int definesound = 0;
+static int framerate = 0;
+static int bitrate = 32;
+
 int args_callback_option(char*name,char*val)
 {
     if(!strcmp(name, "V")) {
@@ -35,10 +47,37 @@ int args_callback_option(char*name,char*val)
 	outputname = val;
 	return 1;
     }
+    else if(!strcmp(name, "d")) {
+	definesound = 1;
+	return 0;
+    }
+    else if(!strcmp(name, "l")) {
+	loop = atoi(val);
+	definesound = 1;
+	return 1;
+    }
     else if(!strcmp(name, "v")) {
 	verbose ++;
 	return 0;
     }
+    else if(!strcmp(name, "r")) {
+	float f;
+	sscanf(val, "%f", &f);
+	framerate = f*256;
+	return 1;
+    }
+    else if(!strcmp(name, "b")) {
+	bitrate = atoi(val);
+	if(bitrate<=0) {
+	    fprintf(stderr, "Not a valid bitrate: %s\n", val);
+	    exit(1);
+	}
+	if(bitrate>144) {
+	    fprintf(stderr, "Bitrate must be <144. (%s)\n", val);
+	    exit(1);
+	}
+	return 1;
+    }
     else {
         printf("Unknown option: -%s\n", name);
 	exit(1);
@@ -53,8 +92,12 @@ 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 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 Set framerate to fps frames per seond\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-V , --version\t\t Print program version and exit\n");
+    printf("\t-V , --version\t\t\t Print program version and exit\n");
 }
 int args_callback_command(char*name,char*val)
 {
@@ -66,81 +109,140 @@ int args_callback_command(char*name,char*val)
     return 0;
 }
 
+extern int swf_mp3_bitrate;
+
 int main (int argc,char ** argv)
-{ SWF swf;
-  RGBA rgb;
-  SRECT r;
-  S32 width=300,height = 300;
-  TAG * tag;
-
-  int f,i,ls1,fs1;
-  int count;
-  int t;
-  struct WAV wav,wav2;
-  int blocksize = 1152;
-  U16* samples;
-  int numsamples;
-
-  processargs(argc, argv);
-  initLog(0,-1,0,0,-1,verbose);
-
-  if(!readWAV(filename, &wav))
-  {
-      logf("<fatal> Error reading %s", filename);
-      exit(1);
-  }
-  convertWAV2mono(&wav,&wav2, 44100);
-  printWAVInfo(&wav);
-  printWAVInfo(&wav2);
-  samples = (U16*)wav2.data;
-  numsamples = wav2.size/2;
-
-  /* the following is a big hack to prevent against
-     periods of total silence- these get written as
-     blocks of length 0 by bladeenc, which causes
-     the flashplayer to crash */
-
-  for(t=0;t<wav2.size/2;t+=2)
-      wav2.data[t]^=(t&2)<<1;
-
-  memset(&swf,0x00,sizeof(SWF));
-
-  swf.fileVersion    = 4;
-  swf.frameRate      = 44100*256/(blocksize*2);
-
-  swf.movieSize.xmax = 20*width;
-  swf.movieSize.ymax = 20*height;
-
-  swf.firstTag = swf_InsertTag(NULL,ST_SETBACKGROUNDCOLOR);
-  tag = swf.firstTag;
-  rgb.r = 0xff;
-  rgb.g = 0xff;
-  rgb.b = 0xff;
-  swf_SetRGB(tag,&rgb);
-
-  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++) {
-      int s;
-      U16*block1;
-      U16*block2;
-      tag = swf_InsertTag(tag, ST_SOUNDSTREAMBLOCK);
-      logf("<notice> Writing block %d", t);
-      block1 = &samples[(t*2+0)*blocksize];
-      block2 = &samples[(t*2+1)*blocksize];
-      swf_SetSoundStreamBlock(tag, block1, blocksize,1);
-      swf_SetSoundStreamBlock(tag, block2, blocksize,0);
-      tag = swf_InsertTag(tag, ST_SHOWFRAME);
-  }
-
-  f = open(outputname,O_WRONLY|O_CREAT|O_TRUNC, 0644);
-  if FAILED(swf_WriteSWF(f,&swf)) fprintf(stderr,"WriteSWF() failed.\n");
-  close(f);
-
-  swf_FreeTags(&swf);
-  return 0;
+{ 
+    SWF swf;
+    RGBA rgb;
+    SRECT r;
+    S32 width=300,height = 300;
+    TAG * tag;
+
+    int f,i,ls1,fs1;
+    int count;
+    int t;
+    struct WAV wav,wav2;
+    int blocksize;
+    float blockspersecond;
+    float framespersecond;
+    float samplesperframe;
+    float framesperblock;
+    float samplesperblock;
+    U16* samples;
+    int numsamples;
+
+    processargs(argc, argv);
+
+    blocksize = 576;
+    blockspersecond = 11025.0/blocksize;
+
+    framespersecond = blockspersecond;
+    if(framerate)
+	framespersecond = framerate/256.0;
+
+    framesperblock = framespersecond / blockspersecond;
+    samplesperframe = (blocksize * blockspersecond) / framespersecond;
+    samplesperblock = samplesperframe * framesperblock;
+    
+    initLog(0,-1,0,0,-1,verbose);
+
+    if(!readWAV(filename, &wav))
+    {
+	logf("<fatal> Error reading %s", filename);
+	exit(1);
+    }
+    convertWAV2mono(&wav,&wav2, 44100);
+    //printWAVInfo(&wav);
+    //printWAVInfo(&wav2);
+    samples = (U16*)wav2.data;
+    numsamples = wav2.size/2;
+
+    memset(&swf,0x00,sizeof(SWF));
+
+    swf.fileVersion    = 5;
+    swf.frameRate      = (int)(framespersecond*256);
+
+    swf.movieSize.xmax = 20*width;
+    swf.movieSize.ymax = 20*height;
+
+    swf.firstTag = swf_InsertTag(NULL,ST_SETBACKGROUNDCOLOR);
+    tag = swf.firstTag;
+    rgb.r = 0xff;
+    rgb.g = 0xff;
+    rgb.b = 0xff;
+    swf_SetRGB(tag,&rgb);
+	
+    swf_mp3_bitrate = bitrate;
+
+    if(!definesound)
+    {
+	int oldframepos=-1, newframepos=0;
+	float framesamplepos = 0;
+	float framepos = 0;
+	float samplepos = 0;
+	U16 v1=0,v2=0;
+	tag = swf_InsertTag(tag, ST_SOUNDSTREAMHEAD);
+	swf_SetSoundStreamHead(tag, samplesperframe);
+
+	logf("<notice> %d blocks", numsamples/(blocksize*4));
+	for(t=0;t<numsamples/(blocksize*4);t++) {
+	    int s;
+	    U16*block1;
+	    int seek = blocksize - ((int)samplepos - (int)framesamplepos);
+
+	    if(newframepos!=oldframepos) {
+		tag = swf_InsertTag(tag, ST_SOUNDSTREAMBLOCK);
+		logf("<notice> Starting block %d %d+%d", t, (int)samplepos, (int)blocksize);
+		block1 = &samples[t*blocksize*4];
+		swf_SetSoundStreamBlock(tag, block1, seek, 1);
+		v1 = v2 = GET16(tag->data);
+	    } else {
+		logf("<notice> Adding data...", t);
+		block1 = &samples[t*blocksize*4];
+		swf_SetSoundStreamBlock(tag, block1, seek, 0);
+		v1+=v2;
+		PUT16(tag->data, v1);
+	    }
+	    samplepos += blocksize;
+
+	    oldframepos = (int)framepos;
+	    framepos += framesperblock;
+	    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
+#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));
+	info.loops = loop;
+	swf_SetSoundInfo(tag, &info);
+	tag = swf_InsertTag(tag, ST_SHOWFRAME);
+	tag = swf_InsertTag(tag, ST_END);
+    }
+
+    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;
 }