-/* 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.
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"},
{"d","definesound"},
{"l","loop"},
{"r","framerate"},
+ {"s","samplerate"},
+ {"b","bitrate"},
+ {"C","cgi"},
{"V","version"},
{0,0}
};
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)
{
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);
{
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)
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;
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;
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));
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;
git.asbjorn.biz / swftools.git / blobdiff