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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
//#include "stream.h"
//#include "demuxer.h"
//#include "stheader.h"
#include "wine/mmreg.h"
#include "wine/avifmt.h"
#include "wine/vfw.h"
#include "aviwrite.h"
aviwrite_stream_t* aviwrite_new_stream(aviwrite_t *muxer,int type){
aviwrite_stream_t* s;
if(muxer->avih.dwStreams>=AVIWRITE_MAX_STREAMS){
printf("Too many streams! increase AVIWRITE_MAX_STREAMS !\n");
return NULL;
}
s=malloc(sizeof(aviwrite_stream_t));
memset(s,0,sizeof(aviwrite_stream_t));
if(!s) return NULL; // no mem!?
muxer->streams[muxer->avih.dwStreams]=s;
s->type=type;
s->id=muxer->avih.dwStreams;
s->timer=0.0;
s->size=0;
switch(type){
case AVIWRITE_TYPE_VIDEO:
s->ckid=mmioFOURCC(('0'+s->id/10),('0'+(s->id%10)),'d','c');
s->h.fccType=streamtypeVIDEO;
if(!muxer->def_v) muxer->def_v=s;
break;
case AVIWRITE_TYPE_AUDIO:
s->ckid=mmioFOURCC(('0'+s->id/10),('0'+(s->id%10)),'w','b');
s->h.fccType=streamtypeAUDIO;
break;
default:
printf("WarninG! unknown stream type: %d\n",type);
return NULL;
}
muxer->avih.dwStreams++;
return s;
}
aviwrite_t* aviwrite_new_muxer(){
aviwrite_t* muxer=malloc(sizeof(aviwrite_t));
memset(muxer,0,sizeof(aviwrite_t));
return muxer;
}
static void write_avi_chunk(FILE *f,unsigned int id,int len,void* data){
fwrite(&id,4,1,f);
fwrite(&len,4,1,f);
if(len>0){
if(data){
// DATA
fwrite(data,len,1,f);
if(len&1){ // padding
unsigned char zerobyte=0;
fwrite(&zerobyte,1,1,f);
}
} else {
// JUNK
char *avi_junk_data="[= MPlayer junk data! =]";
if(len&1) ++len; // padding
while(len>0){
int l=strlen(avi_junk_data);
if(l>len) l=len;
fwrite(avi_junk_data,l,1,f);
len-=l;
}
}
}
}
void aviwrite_write_chunk(aviwrite_t *muxer,aviwrite_stream_t *s, FILE *f,int len,unsigned int flags){
// add to the index:
if(muxer->idx_pos>=muxer->idx_size){
muxer->idx_size+=256; // 4kB
muxer->idx=realloc(muxer->idx,16*muxer->idx_size);
}
muxer->idx[muxer->idx_pos].ckid=s->ckid;
muxer->idx[muxer->idx_pos].dwFlags=flags; // keyframe?
muxer->idx[muxer->idx_pos].dwChunkOffset=ftell(f)-(muxer->movi_start-4);
muxer->idx[muxer->idx_pos].dwChunkLength=len;
++muxer->idx_pos;
// write out the chunk:
write_avi_chunk(f,s->ckid,len,s->buffer);
// alter counters:
if(s->h.dwSampleSize){
// CBR
s->h.dwLength+=len/s->h.dwSampleSize;
if(len%s->h.dwSampleSize) printf("Warning! len isn't divisable by samplesize!\n");
} else {
// VBR
s->h.dwLength++;
}
s->timer=(double)s->h.dwLength*s->h.dwScale/s->h.dwRate;
s->size+=len;
if(len>s->h.dwSuggestedBufferSize) s->h.dwSuggestedBufferSize=len;
}
static void write_avi_list(FILE *f,unsigned int id,int len){
unsigned int list_id=FOURCC_LIST;
len+=4; // list fix
fwrite(&list_id,4,1,f);
fwrite(&len,4,1,f);
fwrite(&id,4,1,f);
}
// muxer->streams[i]->wf->cbSize
#define WFSIZE(wf) (sizeof(WAVEFORMATEX)+(((wf)->cbSize)?((wf)->cbSize-2):0))
void aviwrite_write_header(aviwrite_t *muxer,FILE *f){
unsigned int riff[3];
int i;
unsigned int hdrsize;
// RIFF header:
riff[0]=mmioFOURCC('R','I','F','F');
riff[1]=muxer->file_end; // filesize
riff[2]=formtypeAVI; // 'AVI '
fwrite(&riff,12,1,f);
// update AVI header:
if(muxer->def_v){
muxer->avih.dwMicroSecPerFrame=1000000.0*muxer->def_v->h.dwScale/muxer->def_v->h.dwRate;
// muxer->avih.dwMaxBytesPerSec=1000000; // dummy!!!!! FIXME
// muxer->avih.dwPaddingGranularity=2; // ???
muxer->avih.dwFlags|=AVIF_ISINTERLEAVED|AVIF_TRUSTCKTYPE;
muxer->avih.dwTotalFrames=muxer->def_v->h.dwLength;
// muxer->avih.dwSuggestedBufferSize=muxer->def_v->h.dwSuggestedBufferSize;
muxer->avih.dwWidth=muxer->def_v->bih->biWidth;
muxer->avih.dwHeight=muxer->def_v->bih->biHeight;
}
// AVI header:
hdrsize=sizeof(muxer->avih)+8;
// calc total header size:
for(i=0;i<muxer->avih.dwStreams;i++){
hdrsize+=12; // LIST
hdrsize+=sizeof(muxer->streams[i]->h)+8; // strh
switch(muxer->streams[i]->type){
case AVIWRITE_TYPE_VIDEO:
hdrsize+=muxer->streams[i]->bih->biSize+8; // strf
break;
case AVIWRITE_TYPE_AUDIO:
hdrsize+=WFSIZE(muxer->streams[i]->wf)+8; // strf
break;
}
}
write_avi_list(f,listtypeAVIHEADER,hdrsize);
write_avi_chunk(f,ckidAVIMAINHDR,sizeof(muxer->avih),&muxer->avih);
// stream headers:
for(i=0;i<muxer->avih.dwStreams;i++){
hdrsize=sizeof(muxer->streams[i]->h)+8; // strh
switch(muxer->streams[i]->type){
case AVIWRITE_TYPE_VIDEO:
hdrsize+=muxer->streams[i]->bih->biSize+8; // strf
break;
case AVIWRITE_TYPE_AUDIO:
hdrsize+=WFSIZE(muxer->streams[i]->wf)+8; // strf
break;
}
write_avi_list(f,listtypeSTREAMHEADER,hdrsize);
write_avi_chunk(f,ckidSTREAMHEADER,sizeof(muxer->streams[i]->h),&muxer->streams[i]->h); // strh
switch(muxer->streams[i]->type){
case AVIWRITE_TYPE_VIDEO:
write_avi_chunk(f,ckidSTREAMFORMAT,muxer->streams[i]->bih->biSize,muxer->streams[i]->bih);
break;
case AVIWRITE_TYPE_AUDIO:
write_avi_chunk(f,ckidSTREAMFORMAT,WFSIZE(muxer->streams[i]->wf),muxer->streams[i]->wf);
break;
}
}
// JUNK:
write_avi_chunk(f,ckidAVIPADDING,2048-(ftell(f)&2047)-8,NULL);
// 'movi' header:
write_avi_list(f,listtypeAVIMOVIE,muxer->movi_end-ftell(f)-12);
muxer->movi_start=ftell(f);
}
void aviwrite_write_index(aviwrite_t *muxer,FILE *f){
muxer->movi_end=ftell(f);
if(muxer->idx && muxer->idx_pos>0){
// fixup index entries:
// int i;
// for(i=0;i<muxer->idx_pos;i++) muxer->idx[i].dwChunkOffset-=muxer->movi_start-4;
// write index chunk:
write_avi_chunk(f,ckidAVINEWINDEX,16*muxer->idx_pos,muxer->idx);
muxer->avih.dwFlags|=AVIF_HASINDEX;
}
muxer->file_end=ftell(f);
}
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