mpv/open.c

109 lines
2.8 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include "config.h"
#ifdef __FreeBSD__
#include <sys/cdrio.h>
#endif
#include "stream.h"
#include "demuxer.h"
#ifdef STREAMING
#include "url.h"
#include "network.h"
static URL_t* url;
#endif
extern int verbose;
extern int vcd_get_track_end(int fd,int track);
// Open a new stream (stdin/file/vcd/url)
stream_t* open_stream(char* filename,int vcd_track,int* file_format){
stream_t* stream=NULL;
int f=-1;
off_t len;
#ifdef VCD_CACHE
int vcd_cache_size=128;
#endif
#ifdef __FreeBSD__
int bsize = VCD_SECTOR_SIZE;
#endif
//============ Open VideoCD track ==============
if(vcd_track){
int ret,ret2;
f=open(filename,O_RDONLY);
if(f<0){ fprintf(stderr,"CD-ROM Device '%s' not found!\n",filename);return NULL; }
vcd_read_toc(f);
ret2=vcd_get_track_end(f,vcd_track);
if(ret2<0){ fprintf(stderr,"Error selecting VCD track! (get)\n");return NULL;}
ret=vcd_seek_to_track(f,vcd_track);
if(ret<0){ fprintf(stderr,"Error selecting VCD track! (seek)\n");return NULL;}
// seek_to_byte+=ret;
if(verbose) printf("VCD start byte position: 0x%X end: 0x%X\n",ret,ret2);
#ifdef VCD_CACHE
vcd_cache_init(vcd_cache_size);
#endif
#ifdef __FreeBSD__
if (ioctl (f, CDRIOCSETBLOCKSIZE, &bsize) == -1) {
perror ( "Error in CDRIOCSETBLOCKSIZE");
}
#endif
stream=new_stream(f,STREAMTYPE_VCD);
stream->start_pos=ret;
stream->end_pos=ret2;
return stream;
}
//============ Open STDIN ============
if(!strcmp(filename,"-")){
// read from stdin
printf("Reading from stdin...\n");
f=0; // 0=stdin
stream=new_stream(f,STREAMTYPE_STREAM);
return stream;
}
#ifdef STREAMING
url = url_new(filename);
if(url) {
(*file_format)=autodetectProtocol( url, &f );
if( (*file_format)==DEMUXER_TYPE_UNKNOWN ) {
fprintf(stderr,"Unable to open URL: %s\n", filename);
url_free(url);
return NULL;
}
f=streaming_start( &url, f, file_format );
if(f<0){ fprintf(stderr,"Unable to open URL: %s\n", url->url); return NULL; }
printf("Connected to server: %s\n", url->hostname );
stream=new_stream(f,STREAMTYPE_STREAM);
return NULL;
}
#endif
//============ Open plain FILE ============
f=open(filename,O_RDONLY);
if(f<0){ fprintf(stderr,"File not found: '%s'\n",filename);return NULL; }
len=lseek(f,0,SEEK_END); lseek(f,0,SEEK_SET);
if (len == -1)
perror("Error: lseek failed to obtain video file size");
else
if(verbose)
#ifdef _LARGEFILE_SOURCE
printf("File size is %lld bytes\n", (long long)len);
#else
printf("File size is %u bytes\n", (unsigned int)len);
#endif
stream=new_stream(f,STREAMTYPE_FILE);
stream->end_pos=len;
return stream;
}