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try to read wav header in any case.

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git-svn-id: svn+ssh://svn.savannah.nongnu.org/linphone/trunk@516 3f6dc0c8-ddfe-455d-9043-3cd528dc4637
This commit is contained in:
smorlat 2009-07-03 13:50:42 +00:00
parent 2a08f842e9
commit 708676044f
1 changed files with 63 additions and 64 deletions
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127
linphone/mediastreamer2/src/msfileplayer.c
View file

@ -57,69 +57,66 @@ static void player_init(MSFilter *f){
}
static int read_wav_header(PlayerData *d){
char header1[sizeof(riff_t)];
char header2[sizeof(format_t)];
char header3[sizeof(data_t)];
int count;
riff_t *riff_chunk=(riff_t*)header1;
format_t *format_chunk=(format_t*)header2;
data_t *data_chunk=(data_t*)header3;
unsigned long len=0;
len = read(d->fd, header1, sizeof(header1)) ;
if (len != sizeof(header1)){
ms_warning("Wrong wav header: cannot read file");
return -1;
}
if (0!=strncmp(riff_chunk->riff, "RIFF", 4) || 0!=strncmp(riff_chunk->wave, "WAVE", 4)){
ms_warning("Wrong wav header (not RIFF/WAV)");
return -1;
}
len = read(d->fd, header2, sizeof(header2)) ;
if (len != sizeof(header2)){
ms_warning("Wrong wav header: cannot read file");
return -1;
}
d->rate=le_uint32(format_chunk->rate);
d->nchannels=le_uint16(format_chunk->channel);
if (format_chunk->len-0x10>0)
{
lseek(d->fd,(format_chunk->len-0x10),SEEK_CUR);
}
d->hsize=sizeof(wave_header_t)-0x10+format_chunk->len;
len = read(d->fd, header3, sizeof(header3)) ;
if (len != sizeof(header3)){
ms_warning("Wrong wav header: cannot read file");
return -1;
}
count=0;
while (strncmp(data_chunk->data, "data", 4)!=0 && count<30)
{
ms_warning("skipping chunk=%s len=%i", data_chunk->data, data_chunk->len);
lseek(d->fd,data_chunk->len,SEEK_CUR);
count++;
d->hsize=d->hsize+len+data_chunk->len;
len = read(d->fd, header3, sizeof(header3)) ;
if (len != sizeof(header3)){
ms_warning("Wrong wav header: cannot read file");
return -1;
}
}
#ifdef WORDS_BIGENDIAN
if (le_uint16(format_chunk->blockalign)==le_uint16(format_chunk->channel) * 2)
d->swap=TRUE;
#endif
return 0;
char header1[sizeof(riff_t)];
char header2[sizeof(format_t)];
char header3[sizeof(data_t)];
int count;
riff_t *riff_chunk=(riff_t*)header1;
format_t *format_chunk=(format_t*)header2;
data_t *data_chunk=(data_t*)header3;
unsigned long len=0;
len = read(d->fd, header1, sizeof(header1)) ;
if (len != sizeof(header1)){
return -1;
}
if (0!=strncmp(riff_chunk->riff, "RIFF", 4) || 0!=strncmp(riff_chunk->wave, "WAVE", 4)){
return -1;
}
len = read(d->fd, header2, sizeof(header2)) ;
if (len != sizeof(header2)){
ms_warning("Wrong wav header: cannot read file");
return -1;
}
d->rate=le_uint32(format_chunk->rate);
d->nchannels=le_uint16(format_chunk->channel);
if (format_chunk->len-0x10>0)
{
lseek(d->fd,(format_chunk->len-0x10),SEEK_CUR);
}
d->hsize=sizeof(wave_header_t)-0x10+format_chunk->len;
len = read(d->fd, header3, sizeof(header3)) ;
if (len != sizeof(header3)){
ms_warning("Wrong wav header: cannot read file");
return -1;
}
count=0;
while (strncmp(data_chunk->data, "data", 4)!=0 && count<30)
{
ms_warning("skipping chunk=%s len=%i", data_chunk->data, data_chunk->len);
lseek(d->fd,data_chunk->len,SEEK_CUR);
count++;
d->hsize=d->hsize+len+data_chunk->len;
len = read(d->fd, header3, sizeof(header3)) ;
if (len != sizeof(header3)){
ms_warning("Wrong wav header: cannot read file");
return -1;
}
}
#ifdef WORDS_BIGENDIAN
if (le_uint16(format_chunk->blockalign)==le_uint16(format_chunk->channel) * 2)
d->swap=TRUE;
#endif
return 0;
}
static int player_open(MSFilter *f, void *arg){
@ -136,7 +133,9 @@ static int player_open(MSFilter *f, void *arg){
}
d->state=STOPPED;
d->fd=fd;
if (strstr(file,".wav")!=NULL) read_wav_header(d);
if (read_wav_header(d)!=0 && strstr(file,".wav")){
ms_warning("File %s has .wav extension but wav header could be found.",file);
}
ms_message("%s opened: rate=%i,channel=%i",file,d->rate,d->nchannels);
return 0;
}