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// QuickTime MOV file parser
// based on TOOLS/movinfo.c by A'rpi & Al3x
#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 "wine/mmreg.h"
#include "wine/avifmt.h"
#include "wine/vfw.h"
#include "codec-cfg.h"
#include "stheader.h"
typedef struct {
int id;
int type;
int timescale;
int width,height; // for video
unsigned int fourcc;
int data_len;
unsigned char* data;
} mov_track_t;
#define MOV_MAX_TRACKS 256
#define MOV_TRAK_UNKNOWN 0
#define MOV_TRAK_VIDEO 1
#define MOV_TRAK_AUDIO 2
typedef struct {
off_t moov_start;
off_t moov_end;
off_t mdat_start;
off_t mdat_end;
int track_db;
mov_track_t* tracks[MOV_MAX_TRACKS];
} mov_priv_t;
#define MOV_FOURCC(a,b,c,d) ((a<<24)|(b<<16)|(c<<8)|(d))
int mov_check_file(demuxer_t* demuxer){
int flags=0;
mov_priv_t* priv=malloc(sizeof(mov_priv_t));
mp_msg(MSGT_DEMUX,MSGL_V,"Checking for MOV\n");
memset(priv,0,sizeof(mov_priv_t));
demuxer->priv=priv;
while(1){
off_t len=stream_read_dword(demuxer->stream);
unsigned int id=stream_read_dword(demuxer->stream);
if(stream_eof(demuxer->stream)) break; // EOF
if(len<8) break; // invalid chunk
switch(id){
case MOV_FOURCC('m','o','o','v'):
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: Movie header found!\n");
priv->moov_start=stream_tell(demuxer->stream);
priv->moov_end=priv->moov_start+len-8;
flags|=1;
break;
case MOV_FOURCC('m','d','a','t'):
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: Movie DATA found!\n");
priv->mdat_start=stream_tell(demuxer->stream);
priv->mdat_end=priv->mdat_start+len-8;
flags|=2;
break;
default:
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: unknown chunk: %.4s %d\n",&id,(int)len);
}
if(!stream_skip(demuxer->stream,len-8)) break;
}
return (flags==3);
}
static void lschunks(demuxer_t* demuxer,int level,off_t endpos,mov_track_t* trak){
mov_priv_t* priv=demuxer->priv;
while(1){
off_t pos;
off_t len;
unsigned int id;
//
pos=stream_tell(demuxer->stream);
if(pos>=endpos) return; // END
len=stream_read_dword(demuxer->stream);
if(len<8) return; // error
len-=8;
id=stream_read_dword(demuxer->stream);
//
mp_msg(MSGT_DEMUX,MSGL_DBG2,"lschunks %.4s %d\n",&id,(int)len);
//
if(trak){
switch(id){
case MOV_FOURCC('t','k','h','d'): {
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sTrack header!\n",level,"");
// read width x height
break;
}
case MOV_FOURCC('m','d','h','d'): {
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sMedia header!\n",level,"");
// read timescale
break;
}
case MOV_FOURCC('v','m','h','d'): {
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sVideo header!\n",level,"");
trak->type=MOV_TRAK_VIDEO;
// read video data
break;
}
case MOV_FOURCC('s','m','h','d'): {
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sSound header!\n",level,"");
trak->type=MOV_TRAK_AUDIO;
// read audio data
break;
}
case MOV_FOURCC('s','t','s','d'): {
int i=stream_read_dword(demuxer->stream); // temp!
int count=stream_read_dword(demuxer->stream);
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sDescription list! (cnt:%d)\n",level,"",count);
for(i=0;i<count;i++){
off_t pos=stream_tell(demuxer->stream);
off_t len=stream_read_dword(demuxer->stream);
unsigned int fourcc=stream_read_dword_le(demuxer->stream);
if(len<8) break; // error
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*s desc #%d: %.4s",level,"",i,&fourcc);
if(!i){
trak->fourcc=fourcc;
// read codec data
trak->data_len=len-8;
trak->data=malloc(trak->data_len);
stream_read(demuxer->stream,trak->data,trak->data_len);
if(trak->type==MOV_TRAK_VIDEO && trak->data_len>43){
mp_msg(MSGT_DEMUX,MSGL_V," '%.*s'",trak->data_len-43,trak->data+43);
}
}
mp_msg(MSGT_DEMUX,MSGL_V,"\n");
if(fourcc!=trak->fourcc && i)
mp_msg(MSGT_DEMUX,MSGL_WARN,MSGTR_MOVvariableFourCC);
if(!stream_seek(demuxer->stream,pos+len)) break;
}
break;
}
case MOV_FOURCC('m','d','i','a'): {
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sMedia stream!\n",level,"");
lschunks(demuxer,level+1,pos+len,trak);
break;
}
case MOV_FOURCC('m','i','n','f'): {
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sMedia info!\n",level,"");
lschunks(demuxer,level+1,pos+len,trak);
break;
}
case MOV_FOURCC('s','t','b','l'): {
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: %*sSample info!\n",level,"");
lschunks(demuxer,level+1,pos+len,trak);
break;
}
}//switch(id)
} else
if(id==MOV_FOURCC('t','r','a','k')){
// if(trak) printf("MOV: Warning! trak in trak?\n");
if(priv->track_db>=MOV_MAX_TRACKS){
mp_msg(MSGT_DEMUX,MSGL_WARN,MSGTR_MOVtooManyTrk);
return;
}
trak=malloc(sizeof(mov_track_t));
memset(trak,0,sizeof(mov_track_t));
mp_msg(MSGT_DEMUX,MSGL_V,"MOV: Track #%d:\n",priv->track_db);
trak->id=priv->track_db;
priv->tracks[priv->track_db++]=trak;
lschunks(demuxer,level+1,pos+len,trak);
trak=NULL;
} else
if(id==MOV_FOURCC('c','m','o','v')){
mp_msg(MSGT_DEMUX,MSGL_ERR,MSGTR_MOVcomprhdr);
return;
}
pos+=len+8;
if(pos>=endpos) break;
if(!stream_seek(demuxer->stream,pos)) break;
}
}
int mov_read_header(demuxer_t* demuxer){
mov_priv_t* priv=demuxer->priv;
// printf("mov_read_header!\n");
// Parse header:
if(!stream_seek(demuxer->stream,priv->moov_start)) return 0; // ???
lschunks(demuxer, 0, priv->moov_end, NULL);
// Build tables:
// ...
mp_msg(MSGT_DEMUX,MSGL_ERR,MSGTR_MOVnotyetsupp);
return 1;
}
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