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Stop playing wav at end of data segment

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1029 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer
2003-05-16 19:23:07 +00:00
parent 166f1120c8
commit 21e9421c4b
1 changed files with 20 additions and 5 deletions
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25
formats/format_wav.c
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@@ -48,6 +48,7 @@ struct ast_filestream {
short buf[160];
int foffset;
int lasttimeout;
int maxlen;
struct timeval last;
int adj;
struct ast_filestream *next;
@@ -185,12 +186,18 @@ static int check_header(int fd)
ast_log(LOG_WARNING, "Does not say data\n");
return -1;
}
/* Ignore the data length */
/* Data has the actual length of data in it */
if (read(fd, &data, 4) != 4) {
ast_log(LOG_WARNING, "Read failed (data)\n");
return -1;
}
return 0;
#if 0
curpos = lseek(fd, 0, SEEK_CUR);
truelength = lseek(fd, 0, SEEK_END);
lseek(fd, curpos, SEEK_SET);
truelength -= curpos;
#endif
return ltohl(data);
}
static int update_header(int fd)
@@ -305,7 +312,7 @@ static struct ast_filestream *wav_open(int fd)
struct ast_filestream *tmp;
if ((tmp = malloc(sizeof(struct ast_filestream)))) {
memset(tmp, 0, sizeof(struct ast_filestream));
if (check_header(fd)) {
if ((tmp->maxlen = check_header(fd)) < 0) {
free(tmp);
return NULL;
}
@@ -419,9 +426,17 @@ static int ast_read_callback(void *data)
int x;
struct ast_filestream *s = data;
short tmp[sizeof(s->buf) / 2];
int bytes = sizeof(tmp);
off_t here;
/* Send a frame from the file to the appropriate channel */
here = lseek(s->fd, 0, SEEK_CUR);
if ((s->maxlen - here) < bytes)
bytes = s->maxlen - here;
if (bytes < 0)
bytes = 0;
/* ast_log(LOG_DEBUG, "here: %d, maxlen: %d, bytes: %d\n", here, s->maxlen, bytes); */
if ( (res = read(s->fd, tmp, sizeof(tmp))) <= 0 ) {
if ( (res = read(s->fd, tmp, bytes)) <= 0 ) {
if (res) {
ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno));
}
@@ -550,7 +565,7 @@ static int wav_write(struct ast_filestream *fs, struct ast_frame *f)
static int wav_seek(struct ast_filestream *fs, long sample_offset, int whence)
{
off_t min,max,cur;
long offset,samples;
long offset=0,samples;
samples = sample_offset * 2; /* SLINEAR is 16 bits mono, so sample_offset * 2 = bytes */
min = 44; /* wav header is 44 bytes */