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audio-bilingual-channel-select.rst

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.. c:namespace:: DTV.audio

AUDIO_BILINGUAL_CHANNEL_SELECT

Name

AUDIO_BILINGUAL_CHANNEL_SELECT

Attention!

This ioctl is deprecated

Synopsis

.. c:macro:: AUDIO_BILINGUAL_CHANNEL_SELECT

int ioctl(int fd, AUDIO_BILINGUAL_CHANNEL_SELECT, struct audio_channel_select *select)

Arguments

.. flat-table::
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    :stub-columns: 0

    -

       -  int fd

       -  File descriptor returned by a previous call to open().

    -

       -  audio_channel_select_t ch

       -  Select the output format of the audio (mono left/right, stereo).

Description

This ioctl is obsolete. Do not use in new drivers. It has been replaced by the V4L2 V4L2_CID_MPEG_AUDIO_DEC_MULTILINGUAL_PLAYBACK control for MPEG decoders controlled through V4L2.

This ioctl call asks the Audio Device to select the requested channel for bilingual streams if possible.

Return Value

On success 0 is returned, on error -1 and the errno variable is set appropriately. The generic error codes are described at the :ref:`Generic Error Codes <gen-errors>` chapter.