blob: 9aa9583a3267316bb47a883cfdb55b1ba543cadf [file] [log] [blame]
.. -*- coding: utf-8; mode: rst -*-
.. _audio_fwrite:
=================
DVB audio write()
=================
NAME
----
DVB audio write()
SYNOPSIS
--------
.. c:function:: size_t write(int fd, const void *buf, size_t count)
ARGUMENTS
---------
.. flat-table::
:header-rows: 0
:stub-columns: 0
- .. row 1
- int fd
- File descriptor returned by a previous call to open().
- .. row 2
- void \*buf
- Pointer to the buffer containing the PES data.
- .. row 3
- size_t count
- Size of buf.
DESCRIPTION
-----------
This system call can only be used if AUDIO_SOURCE_MEMORY is selected
in the ioctl call AUDIO_SELECT_SOURCE. The data provided shall be in
PES format. If O_NONBLOCK is not specified the function will block
until buffer space is available. The amount of data to be transferred is
implied by count.
RETURN VALUE
------------
.. flat-table::
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:stub-columns: 0
- .. row 1
- ``EPERM``
- Mode AUDIO_SOURCE_MEMORY not selected.
- .. row 2
- ``ENOMEM``
- Attempted to write more data than the internal buffer can hold.
- .. row 3
- ``EBADF``
- fd is not a valid open file descriptor.