static FileInfo *file_info_new(const char *file){
int fd;
FileInfo *fi;
wave_header_t header;
int hsize;
struct stat stbuf;
int size;
if ((fd=open(file,O_RDONLY|O_BINARY))==-1){
ms_error("Failed to open %s : %s",file,strerror(errno));
return NULL;
}
if (fstat(fd,&stbuf)==-1){
ms_error("could not fstat.");
return NULL;
}
hsize=ms_read_wav_header_from_fd(&header,fd);
if (hsize<=0){
ms_error("%s: not a wav file", file);
return NULL;
}
if (wave_header_get_channel(&header)<1){
ms_error("%s: incorrect number of channels", file);
return NULL;
}
fi=ms_new0(FileInfo,1);
size=stbuf.st_size-hsize;
fi->rate=wave_header_get_rate(&header);
fi->nchannels=wave_header_get_channel(&header);
fi->nsamples=size/(sizeof(int16_t)*fi->nchannels);
fi->fd = fd;
return fi;
}
/**
* ms_ring_player_new:
* @name: The path to the 16-bit 8khz raw file to be played as a ring.
* @seconds: The number of seconds that separates two rings.
*
* Allocates a new MSRingPlayer object.
*
*
* Returns: a pointer the the object, NULL if name could not be open.
*/
MSFilter * ms_ring_player_new(char *name, gint seconds)
{
MSRingPlayer *r;
int fd=-1;
if ((name!=NULL) && (strlen(name)!=0))
{
fd=open(name,O_RDONLY);
if (fd<0)
{
g_warning("ms_ring_player_new: failed to open %s.\n",name);
return NULL;
}
}else {
g_warning("ms_ring_player_new: Bad file name");
return NULL;
}
r=g_new(MSRingPlayer,1);
ms_ring_player_init(r);
if (ms_ring_player_class==NULL)
{
ms_ring_player_class=g_new(MSRingPlayerClass,1);
ms_ring_player_class_init(ms_ring_player_class);
}
MS_FILTER(r)->klass=MS_FILTER_CLASS(ms_ring_player_class);
r->fd=fd;
r->silence=seconds;
r->freq=8000;
if (strstr(name,".wav")!=NULL){
wave_header_t header;
int freq,freq2;
/* read the header */
read(fd,&header,sizeof(wave_header_t));
freq=wave_header_get_rate(&header);
if ((freq2=freq_is_supported(freq))>0){
r->freq=freq2;
}else {
g_warning("Unsupported sampling rate %i",freq);
r->freq=8000;
}
r->channel=wave_header_get_channel(&header);
lseek(fd,WAVE_HEADER_OFFSET,SEEK_SET);
#ifdef WORDS_BIGENDIAN
r->need_swap=1;
#else
r->need_swap=0;
#endif
}
ms_ring_player_set_property(r, MS_FILTER_PROPERTY_FREQ,&r->freq);
r->state=PLAY_RING;
return(MS_FILTER(r));
}
static int read_wav_header(PlayerData *d){
wave_header_t wav;
if (read(d->fd,&wav,sizeof(wav))!=sizeof(wav)){
ms_warning("Could not read wav header");
return -1;
}
if (0!=strncmp(wav.riff_chunk.riff, "RIFF", 4) || 0!=strncmp(wav.riff_chunk.wave, "WAVE", 4)){
ms_warning("Wrong wav header: (default rate/channel -> %i:%i)", d->rate, d->nchannels);
return -1;
}
d->rate=wave_header_get_rate(&wav);
d->nchannels=wave_header_get_channel(&wav);
d->hsize=sizeof(wav);
#ifdef WORDS_BIGENDIAN
if (wave_header_get_bpsmpl(&wav)==wave_header_get_channel(&wav) * 2)
d->swap=TRUE;
#endif
return 0;
}
static FileInfo *file_info_new(const char *file){
int fd;
FileInfo *fi;
wave_header_t header;
int hsize;
struct stat stbuf;
int size;
int err;
if ((fd=open(file,O_RDONLY|O_BINARY))==-1){
ms_error("Failed to open %s : %s",file,strerror(errno));
return NULL;
}
if (fstat(fd,&stbuf)==-1){
ms_error("could not fstat.");
return NULL;
}
hsize=ms_read_wav_header_from_fd(&header,fd);
if (hsize<=0){
ms_error("%s: not a wav file", file);
return NULL;
}
fi=ms_new0(FileInfo,1);
size=stbuf.st_size-hsize;
fi->buffer=ms_new0(int16_t,size/sizeof(int16_t));
fi->rate=wave_header_get_rate(&header);
fi->nchannels=wave_header_get_channel(&header);
fi->nsamples=size/(sizeof(int16_t)*fi->nchannels);
err=read(fd,fi->buffer,size);
if (err==-1){
ms_error("Could not read file: %s",strerror(errno));
goto error;
}else if (err<size){
ms_error("Partial read of %i bytes",err);
goto error;
}
return fi;
error:
file_info_destroy(fi);
return NULL;
}