static pj_status_t skip(pj_oshandle_t fd, pj_off_t bytes)
{
pj_status_t status;
status = pj_file_setpos(fd, bytes, PJ_SEEK_CUR);
if (status != PJ_SUCCESS)
return status;
return PJ_SUCCESS;
}
//
// Set file position.
//
pj_status_t setpos(pj_off_t offset, Offset_Type whence)
{
return pj_file_setpos(hnd_, offset,
(enum pj_file_seek_type)whence);
}
static int file_test_internal(void)
{
enum { FILE_MAX_AGE = 1000 };
pj_oshandle_t fd = 0;
pj_status_t status;
char readbuf[sizeof(buffer)+16];
pj_file_stat stat;
pj_time_val start_time;
pj_ssize_t size;
pj_off_t pos;
PJ_LOG(3,("", "..file io test.."));
/* Get time. */
pj_gettimeofday(&start_time);
/* Delete original file if exists. */
if (pj_file_exists(FILENAME))
pj_file_delete(FILENAME);
/*
* Write data to the file.
*/
status = pj_file_open(NULL, FILENAME, PJ_O_WRONLY, &fd);
if (status != PJ_SUCCESS) {
app_perror("...file_open() error", status);
return -10;
}
size = sizeof(buffer);
status = pj_file_write(fd, buffer, &size);
if (status != PJ_SUCCESS) {
app_perror("...file_write() error", status);
pj_file_close(fd);
return -20;
}
if (size != sizeof(buffer))
return -25;
status = pj_file_close(fd);
if (status != PJ_SUCCESS) {
app_perror("...file_close() error", status);
return -30;
}
/* Check the file existance and size. */
if (!pj_file_exists(FILENAME))
return -40;
if (pj_file_size(FILENAME) != sizeof(buffer))
return -50;
/* Get file stat. */
status = pj_file_getstat(FILENAME, &stat);
if (status != PJ_SUCCESS)
return -60;
/* Check stat size. */
if (stat.size != sizeof(buffer))
return -70;
#if INCLUDE_FILE_TIME_TEST
/* Check file creation time >= start_time. */
if (!PJ_TIME_VAL_GTE(stat.ctime, start_time))
return -80;
/* Check file creation time is not much later. */
PJ_TIME_VAL_SUB(stat.ctime, start_time);
if (stat.ctime.sec > FILE_MAX_AGE)
return -90;
/* Check file modification time >= start_time. */
if (!PJ_TIME_VAL_GTE(stat.mtime, start_time))
return -80;
/* Check file modification time is not much later. */
PJ_TIME_VAL_SUB(stat.mtime, start_time);
if (stat.mtime.sec > FILE_MAX_AGE)
return -90;
/* Check file access time >= start_time. */
if (!PJ_TIME_VAL_GTE(stat.atime, start_time))
return -80;
/* Check file access time is not much later. */
PJ_TIME_VAL_SUB(stat.atime, start_time);
if (stat.atime.sec > FILE_MAX_AGE)
return -90;
#endif
/*
* Re-open the file and read data.
*/
status = pj_file_open(NULL, FILENAME, PJ_O_RDONLY, &fd);
if (status != PJ_SUCCESS) {
app_perror("...file_open() error", status);
return -100;
}
size = 0;
while (size < (pj_ssize_t)sizeof(readbuf)) {
pj_ssize_t read;
read = 1;
status = pj_file_read(fd, &readbuf[size], &read);
if (status != PJ_SUCCESS) {
PJ_LOG(3,("", "...error reading file after %d bytes (error follows)",
size));
app_perror("...error", status);
return -110;
}
if (read == 0) {
// EOF
break;
}
size += read;
}
if (size != sizeof(buffer))
return -120;
/*
if (!pj_file_eof(fd, PJ_O_RDONLY))
return -130;
*/
if (pj_memcmp(readbuf, buffer, size) != 0)
return -140;
/* Seek test. */
status = pj_file_setpos(fd, 4, PJ_SEEK_SET);
if (status != PJ_SUCCESS) {
app_perror("...file_setpos() error", status);
return -141;
}
/* getpos test. */
status = pj_file_getpos(fd, &pos);
if (status != PJ_SUCCESS) {
app_perror("...file_getpos() error", status);
return -142;
}
if (pos != 4)
return -143;
status = pj_file_close(fd);
if (status != PJ_SUCCESS) {
app_perror("...file_close() error", status);
return -150;
}
/*
* Rename test.
*/
status = pj_file_move(FILENAME, NEWNAME);
if (status != PJ_SUCCESS) {
app_perror("...file_move() error", status);
return -160;
}
if (pj_file_exists(FILENAME))
return -170;
if (!pj_file_exists(NEWNAME))
return -180;
if (pj_file_size(NEWNAME) != sizeof(buffer))
return -190;
/* Delete test. */
status = pj_file_delete(NEWNAME);
if (status != PJ_SUCCESS) {
app_perror("...file_delete() error", status);
return -200;
}
if (pj_file_exists(NEWNAME))
return -210;
PJ_LOG(3,("", "...success"));
return PJ_SUCCESS;
}
/*
* Close the port, modify file header with updated file length.
*/
static pj_status_t file_on_destroy(pjmedia_port *this_port)
{
enum { FILE_LEN_POS = 4, DATA_LEN_POS = 40 };
struct file_port *fport = (struct file_port *)this_port;
pj_off_t file_size;
pj_ssize_t bytes;
pj_uint32_t wave_file_len;
pj_uint32_t wave_data_len;
pj_status_t status;
pj_uint32_t data_len_pos = DATA_LEN_POS;
/* Flush remaining buffers. */
if (fport->writepos != fport->buf)
flush_buffer(fport);
/* Get file size. */
status = pj_file_getpos(fport->fd, &file_size);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Calculate wave fields */
wave_file_len = (pj_uint32_t)(file_size - 8);
wave_data_len = (pj_uint32_t)(file_size - sizeof(pjmedia_wave_hdr));
#if defined(PJ_IS_BIG_ENDIAN) && PJ_IS_BIG_ENDIAN!=0
wave_file_len = pj_swap32(wave_file_len);
wave_data_len = pj_swap32(wave_data_len);
#endif
/* Seek to the file_len field. */
status = pj_file_setpos(fport->fd, FILE_LEN_POS, PJ_SEEK_SET);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Write file_len */
bytes = sizeof(wave_file_len);
status = pj_file_write(fport->fd, &wave_file_len, &bytes);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Write samples_len in FACT chunk */
if (fport->fmt_tag != PJMEDIA_WAVE_FMT_TAG_PCM) {
enum { SAMPLES_LEN_POS = 44};
pj_uint32_t wav_samples_len;
/* Adjust wave_data_len & data_len_pos since there is FACT chunk */
wave_data_len -= 12;
data_len_pos += 12;
wav_samples_len = wave_data_len;
/* Seek to samples_len field. */
status = pj_file_setpos(fport->fd, SAMPLES_LEN_POS, PJ_SEEK_SET);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Write samples_len */
bytes = sizeof(wav_samples_len);
status = pj_file_write(fport->fd, &wav_samples_len, &bytes);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
}
/* Seek to data_len field. */
status = pj_file_setpos(fport->fd, data_len_pos, PJ_SEEK_SET);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Write file_len */
bytes = sizeof(wave_data_len);
status = pj_file_write(fport->fd, &wave_data_len, &bytes);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Close file */
status = pj_file_close(fport->fd);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, status);
/* Done. */
return PJ_SUCCESS;
}
PJ_DEF(pj_status_t) pj_file_open( pj_pool_t *pool,
const char *pathname,
unsigned flags,
pj_oshandle_t *fd)
{
PJ_DECL_UNICODE_TEMP_BUF(wpathname,256)
HANDLE hFile;
DWORD dwDesiredAccess = 0;
DWORD dwShareMode = 0;
DWORD dwCreationDisposition = 0;
DWORD dwFlagsAndAttributes = 0;
PJ_UNUSED_ARG(pool);
PJ_ASSERT_RETURN(pathname!=NULL, PJ_EINVAL);
if ((flags & PJ_O_WRONLY) == PJ_O_WRONLY) {
dwDesiredAccess |= GENERIC_WRITE;
if ((flags & PJ_O_APPEND) == PJ_O_APPEND) {
#if !defined(PJ_WIN32_WINCE) || !PJ_WIN32_WINCE
/* FILE_APPEND_DATA is invalid on WM2003 and WM5, but it seems
* to be working on WM6. All are tested on emulator though.
* Removing this also seem to work (i.e. data is appended), so
* I guess this flag is "optional".
* See http://trac.pjsip.org/repos/ticket/825
*/
dwDesiredAccess |= FILE_APPEND_DATA;
#endif
dwCreationDisposition |= OPEN_ALWAYS;
} else {
dwDesiredAccess &= ~(FILE_APPEND_DATA);
dwCreationDisposition |= CREATE_ALWAYS;
}
}
if ((flags & PJ_O_RDONLY) == PJ_O_RDONLY) {
dwDesiredAccess |= GENERIC_READ;
if (flags == PJ_O_RDONLY)
dwCreationDisposition |= OPEN_EXISTING;
}
if (dwDesiredAccess == 0) {
pj_assert(!"Invalid file open flags");
return PJ_EINVAL;
}
dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL;
hFile = CreateFile(PJ_STRING_TO_NATIVE(pathname,wpathname,sizeof(wpathname)),
dwDesiredAccess, dwShareMode, NULL,
dwCreationDisposition, dwFlagsAndAttributes, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
*fd = 0;
return PJ_RETURN_OS_ERROR(GetLastError());
}
if ((flags & PJ_O_APPEND) == PJ_O_APPEND) {
pj_status_t status;
status = pj_file_setpos(hFile, 0, PJ_SEEK_END);
if (status != PJ_SUCCESS) {
pj_file_close(hFile);
return status;
}
}
*fd = hFile;
return PJ_SUCCESS;
}
PJ_DEF(pj_status_t) pj_file_open( pj_pool_t *pool,
const char *pathname,
unsigned flags,
pj_oshandle_t *fd)
{
PJ_DECL_UNICODE_TEMP_BUF(wpathname,256)
HANDLE hFile;
DWORD dwDesiredAccess = 0;
DWORD dwShareMode = 0;
DWORD dwCreationDisposition = 0;
DWORD dwFlagsAndAttributes = 0;
PJ_UNUSED_ARG(pool);
PJ_ASSERT_RETURN(pathname!=NULL, PJ_EINVAL);
if ((flags & PJ_O_WRONLY) == PJ_O_WRONLY) {
dwDesiredAccess |= GENERIC_WRITE;
if ((flags & PJ_O_APPEND) == PJ_O_APPEND) {
dwDesiredAccess |= FILE_APPEND_DATA;
dwCreationDisposition |= OPEN_ALWAYS;
} else {
dwDesiredAccess &= ~(FILE_APPEND_DATA);
dwCreationDisposition |= CREATE_ALWAYS;
}
}
if ((flags & PJ_O_RDONLY) == PJ_O_RDONLY) {
dwDesiredAccess |= GENERIC_READ;
if (flags == PJ_O_RDONLY)
dwCreationDisposition |= OPEN_EXISTING;
}
if (dwDesiredAccess == 0) {
pj_assert(!"Invalid file open flags");
return PJ_EINVAL;
}
dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL;
hFile = CreateFile(PJ_STRING_TO_NATIVE(pathname,wpathname,sizeof(wpathname)),
dwDesiredAccess, dwShareMode, NULL,
dwCreationDisposition, dwFlagsAndAttributes, NULL);
if (hFile == INVALID_HANDLE_VALUE) {
*fd = 0;
return PJ_RETURN_OS_ERROR(GetLastError());
}
if ((flags & PJ_O_APPEND) == PJ_O_APPEND) {
pj_status_t status;
status = pj_file_setpos(hFile, 0, PJ_SEEK_END);
if (status != PJ_SUCCESS) {
pj_file_close(hFile);
return status;
}
}
*fd = hFile;
return PJ_SUCCESS;
}
/*
* Create wave list player.
*/
PJ_DEF(pj_status_t) pjmedia_wav_playlist_create(pj_pool_t *pool,
const pj_str_t *port_label,
const pj_str_t file_list[],
int file_count,
unsigned ptime,
unsigned options,
pj_ssize_t buff_size,
pjmedia_port **p_port)
{
struct playlist_port *fport;
pj_off_t pos;
pj_status_t status;
int index;
pj_bool_t has_wave_info = PJ_FALSE;
pj_str_t tmp_port_label;
char filename[PJ_MAXPATH]; /* filename for open operations. */
/* Check arguments. */
PJ_ASSERT_RETURN(pool && file_list && file_count && p_port, PJ_EINVAL);
/* Normalize port_label */
if (port_label == NULL || port_label->slen == 0) {
tmp_port_label = pj_str("WAV playlist");
port_label = &tmp_port_label;
}
/* Be sure all files exist */
for (index=0; index<file_count; index++) {
PJ_ASSERT_RETURN(file_list[index].slen < PJ_MAXPATH, PJ_ENAMETOOLONG);
pj_memcpy(filename, file_list[index].ptr, file_list[index].slen);
filename[file_list[index].slen] = '\0';
/* Check the file really exists. */
if (!pj_file_exists(filename)) {
PJ_LOG(4,(THIS_FILE,
"WAV playlist error: file '%s' not found",
filename));
return PJ_ENOTFOUND;
}
}
/* Normalize ptime */
if (ptime == 0)
ptime = 20;
/* Create fport instance. */
fport = create_file_list_port(pool, port_label);
if (!fport) {
return PJ_ENOMEM;
}
/* start with the first file. */
fport->current_file = 0;
fport->max_file = file_count;
/* Create file descriptor list */
fport->fd_list = pj_pool_zalloc(pool, sizeof(pj_oshandle_t)*file_count);
if (!fport->fd_list) {
return PJ_ENOMEM;
}
/* Create file size list */
fport->fsize_list = pj_pool_alloc(pool, sizeof(pj_off_t)*file_count);
if (!fport->fsize_list) {
return PJ_ENOMEM;
}
/* Create start of WAVE data list */
fport->start_data_list = pj_pool_alloc(pool, sizeof(unsigned)*file_count);
if (!fport->start_data_list) {
return PJ_ENOMEM;
}
/* Create file position list */
fport->fpos_list = pj_pool_alloc(pool, sizeof(pj_off_t)*file_count);
if (!fport->fpos_list) {
return PJ_ENOMEM;
}
/* Create file buffer once for this operation.
*/
if (buff_size < 1) buff_size = PJMEDIA_FILE_PORT_BUFSIZE;
fport->bufsize = buff_size;
/* Create buffer. */
fport->buf = pj_pool_alloc(pool, fport->bufsize);
if (!fport->buf) {
return PJ_ENOMEM;
}
/* Initialize port */
fport->options = options;
fport->readpos = fport->buf;
/* ok run this for all files to be sure all are good for playback. */
for (index=file_count-1; index>=0; index--) {
pjmedia_wave_hdr wavehdr;
pj_ssize_t size_to_read, size_read;
/* we end with the last one so we are good to go if still in function*/
pj_memcpy(filename, file_list[index].ptr, file_list[index].slen);
filename[file_list[index].slen] = '\0';
/* Get the file size. */
fport->current_file = index;
fport->fsize_list[index] = pj_file_size(filename);
/* Size must be more than WAVE header size */
if (fport->fsize_list[index] <= sizeof(pjmedia_wave_hdr)) {
status = PJMEDIA_ENOTVALIDWAVE;
goto on_error;
}
/* Open file. */
status = pj_file_open( pool, filename, PJ_O_RDONLY,
&fport->fd_list[index]);
if (status != PJ_SUCCESS)
goto on_error;
/* Read the file header plus fmt header only. */
size_read = size_to_read = sizeof(wavehdr) - 8;
status = pj_file_read( fport->fd_list[index], &wavehdr, &size_read);
if (status != PJ_SUCCESS) {
goto on_error;
}
if (size_read != size_to_read) {
status = PJMEDIA_ENOTVALIDWAVE;
goto on_error;
}
/* Normalize WAVE header fields values from little-endian to host
* byte order.
*/
pjmedia_wave_hdr_file_to_host(&wavehdr);
/* Validate WAVE file. */
if (wavehdr.riff_hdr.riff != PJMEDIA_RIFF_TAG ||
wavehdr.riff_hdr.wave != PJMEDIA_WAVE_TAG ||
wavehdr.fmt_hdr.fmt != PJMEDIA_FMT_TAG)
{
TRACE_((THIS_FILE,
"actual value|expected riff=%x|%x, wave=%x|%x fmt=%x|%x",
wavehdr.riff_hdr.riff, PJMEDIA_RIFF_TAG,
wavehdr.riff_hdr.wave, PJMEDIA_WAVE_TAG,
wavehdr.fmt_hdr.fmt, PJMEDIA_FMT_TAG));
status = PJMEDIA_ENOTVALIDWAVE;
goto on_error;
}
/* Must be PCM with 16bits per sample */
if (wavehdr.fmt_hdr.fmt_tag != 1 ||
wavehdr.fmt_hdr.bits_per_sample != 16)
{
status = PJMEDIA_EWAVEUNSUPP;
goto on_error;
}
/* Block align must be 2*nchannels */
if (wavehdr.fmt_hdr.block_align !=
wavehdr.fmt_hdr.nchan * BYTES_PER_SAMPLE)
{
status = PJMEDIA_EWAVEUNSUPP;
goto on_error;
}
/* If length of fmt_header is greater than 16, skip the remaining
* fmt header data.
*/
if (wavehdr.fmt_hdr.len > 16) {
size_to_read = wavehdr.fmt_hdr.len - 16;
status = pj_file_setpos(fport->fd_list[index], size_to_read,
PJ_SEEK_CUR);
if (status != PJ_SUCCESS) {
goto on_error;
}
}
/* Repeat reading the WAVE file until we have 'data' chunk */
for (;;) {
pjmedia_wave_subchunk subchunk;
size_read = 8;
status = pj_file_read(fport->fd_list[index], &subchunk,
&size_read);
if (status != PJ_SUCCESS || size_read != 8) {
status = PJMEDIA_EWAVETOOSHORT;
goto on_error;
}
/* Normalize endianness */
PJMEDIA_WAVE_NORMALIZE_SUBCHUNK(&subchunk);
/* Break if this is "data" chunk */
if (subchunk.id == PJMEDIA_DATA_TAG) {
wavehdr.data_hdr.data = PJMEDIA_DATA_TAG;
wavehdr.data_hdr.len = subchunk.len;
break;
}
/* Otherwise skip the chunk contents */
size_to_read = subchunk.len;
status = pj_file_setpos(fport->fd_list[index], size_to_read,
PJ_SEEK_CUR);
if (status != PJ_SUCCESS) {
goto on_error;
}
}
/* Current file position now points to start of data */
status = pj_file_getpos(fport->fd_list[index], &pos);
fport->start_data_list[index] = (unsigned)pos;
/* Validate length. */
if (wavehdr.data_hdr.len != fport->fsize_list[index] -
fport->start_data_list[index])
{
status = PJMEDIA_EWAVEUNSUPP;
goto on_error;
}
if (wavehdr.data_hdr.len < 400) {
status = PJMEDIA_EWAVETOOSHORT;
goto on_error;
}
/* It seems like we have a valid WAVE file. */
/* Update port info if we don't have one, otherwise check
* that the WAV file has the same attributes as previous files.
*/
if (!has_wave_info) {
fport->base.info.channel_count = wavehdr.fmt_hdr.nchan;
fport->base.info.clock_rate = wavehdr.fmt_hdr.sample_rate;
fport->base.info.bits_per_sample = wavehdr.fmt_hdr.bits_per_sample;
fport->base.info.samples_per_frame = fport->base.info.clock_rate *
wavehdr.fmt_hdr.nchan *
ptime / 1000;
fport->base.info.bytes_per_frame =
fport->base.info.samples_per_frame *
fport->base.info.bits_per_sample / 8;
has_wave_info = PJ_TRUE;
} else {
/* Check that this file has the same characteristics as the other
* files.
*/
if (wavehdr.fmt_hdr.nchan != fport->base.info.channel_count ||
wavehdr.fmt_hdr.sample_rate != fport->base.info.clock_rate ||
wavehdr.fmt_hdr.bits_per_sample != fport->base.info.bits_per_sample)
{
/* This file has different characteristics than the other
* files.
*/
PJ_LOG(4,(THIS_FILE,
"WAV playlist error: file '%s' has differrent number"
" of channels, sample rate, or bits per sample",
filename));
status = PJMEDIA_EWAVEUNSUPP;
goto on_error;
}
}
/* Set initial position of the file. */
fport->fpos_list[index] = fport->start_data_list[index];
}
/* Fill up the buffer. */
status = file_fill_buffer(fport);
if (status != PJ_SUCCESS) {
goto on_error;
}
/* Done. */
*p_port = &fport->base;
PJ_LOG(4,(THIS_FILE,
"WAV playlist '%.*s' created: samp.rate=%d, ch=%d, bufsize=%uKB",
(int)port_label->slen,
port_label->ptr,
fport->base.info.clock_rate,
fport->base.info.channel_count,
fport->bufsize / 1000));
return PJ_SUCCESS;
on_error:
for (index=0; index<file_count; ++index) {
if (fport->fd_list[index] != 0)
pj_file_close(fport->fd_list[index]);
}
return status;
}
/*
* Fill buffer for file_list operations.
*/
static pj_status_t file_fill_buffer(struct playlist_port *fport)
{
pj_ssize_t size_left = fport->bufsize;
unsigned size_to_read;
pj_ssize_t size;
pj_status_t status;
int current_file = fport->current_file;
/* Can't read file if EOF and loop flag is disabled */
if (fport->eof)
return PJ_EEOF;
while (size_left > 0)
{
/* Calculate how many bytes to read in this run. */
size = size_to_read = size_left;
status = pj_file_read(fport->fd_list[current_file],
&fport->buf[fport->bufsize-size_left],
&size);
if (status != PJ_SUCCESS)
return status;
if (size < 0)
{
/* Should return more appropriate error code here.. */
return PJ_ECANCELLED;
}
size_left -= size;
fport->fpos_list[current_file] += size;
/* If size is less than size_to_read, it indicates that we've
* encountered EOF. Rewind the file.
*/
if (size < (pj_ssize_t)size_to_read)
{
/* Rewind the file for the next iteration */
fport->fpos_list[current_file] =
fport->start_data_list[current_file];
pj_file_setpos(fport->fd_list[current_file],
fport->fpos_list[current_file], PJ_SEEK_SET);
/* Move to next file */
current_file++;
fport->current_file = current_file;
if (fport->current_file == fport->max_file)
{
/* All files have been played. Call callback, if any. */
if (fport->cb)
{
PJ_LOG(5,(THIS_FILE,
"File port %.*s EOF, calling callback",
(int)fport->base.info.name.slen,
fport->base.info.name.ptr));
fport->eof = PJ_TRUE;
status = (*fport->cb)(&fport->base,
fport->base.port_data.pdata);
if (status != PJ_SUCCESS)
{
/* This will crash if file port is destroyed in the
* callback, that's why we set the eof flag before
* calling the callback:
fport->eof = PJ_TRUE;
*/
return status;
}
fport->eof = PJ_FALSE;
}
if (fport->options & PJMEDIA_FILE_NO_LOOP)
{
PJ_LOG(5,(THIS_FILE, "File port %.*s EOF, stopping..",
(int)fport->base.info.name.slen,
fport->base.info.name.ptr));
fport->eof = PJ_TRUE;
return PJ_EEOF;
}
else
{
PJ_LOG(5,(THIS_FILE, "File port %.*s EOF, rewinding..",
(int)fport->base.info.name.slen,
fport->base.info.name.ptr));
/* start with first file again. */
fport->current_file = current_file = 0;
fport->fpos_list[0] = fport->start_data_list[0];
pj_file_setpos(fport->fd_list[0], fport->fpos_list[0],
PJ_SEEK_SET);
}
} /* if current_file == max_file */
} /* size < size_to_read */
} /* while () */
/* Convert samples to host rep */
samples_to_host((pj_int16_t*)fport->buf, fport->bufsize/BYTES_PER_SAMPLE);
return PJ_SUCCESS;
}