Thomas Guillem authored Jul 15, 2020 and Jean-Baptiste Kempf committed May 19, 2021

Instead of using a custom cfg with an extra "audio filter".

i_chan_mode is already used by "audio converter" for dolbystereo.

The spatialaudio "audio filter" is converted to an "audio converter".
Such type of modules are loaded automatically when a conversion is needed
(the chan_mode conversion). Since this module is now an "audio
converter", don't override in/out fmt, but test for in/out fmt
compatibility.

Thomas Guillem authored May 11, 2021 and Jean-Baptiste Kempf committed May 19, 2021

This will allow to change aout->mixer_format before starting the aout,
cf. next commit.

Thomas Guillem authored May 12, 2021 and Jean-Baptiste Kempf committed May 19, 2021

Example:
Original: Ambisonics
Original: 3F2M/LFE

5.1: 3F2R/LFE
7.1: 3F2M2R/LFE

Thomas Guillem authored May 11, 2021 and Jean-Baptiste Kempf committed May 19, 2021

The aout->current_sink_info.headphones special case is handled after the
aout is started. At this point, only the filters need to be updated (via
filters_cfg).

Thomas Guillem authored Jul 15, 2020 and Jean-Baptiste Kempf committed May 19, 2021

 - aout_PrepareStereoMode() prepares the "stereo-mode" var list and return the
default mode.
 - aout_HasStereoMode() returns true if a mode is available (in "stereo-mode" var list)
 - aout_UpdateStereo() does the actual changes.

No functional changes. This will be used by next commits.

Since a23c75a1 we use vlc_atomic_rc_t
which uses memory_order_acq_rel, while the previous code was using
memory_order_release

The aout_dev_t type doesn't need to be shared anymore.

This error message was confusing the user since the audio playback
works normally after getting such error message.

And expose internally:
 - aout_AddMeterPlugin()
 - aout_RemoveMeterPlugin().

This will allow the player to add and remove "audio meter" plugins.

Since this variable is not created as part of any module, creating
it with this flag will cause an assertion failure when trying to
load it from the config

Unused since d69bae28

This fixes a crash when changing the volume while using the file aout module.

Regression from:

commit 8fb81d08
Author: Rémi Denis-Courmont <remi@remlab.net>
Date:   Sat May 5 13:06:19 2018 +0300

    aout: inline some functions

Quentin Chateau authored Feb 21, 2020 and Thomas Guillem committed Mar 12, 2020

Signed-off-by: Thomas Guillem <thomas@gllm.fr>

This fixes an invalid assert when the module failed to start.

Use the DTSHD fourcc instead of the hacked "dtshd" variable.

The DTSHD -> DTS fallback is now handled in aout core, the same code path will
be used for EAC3 -> AC3 fallback. Therefore, aout modules don't have to handle
the DTSHD -> DTS fallback anymore. If a module can't handle DTSHD, it should
return an error and the DTS fourcc will be tried right after.

Like said in the documentation.

No functional changes.

Rémi Denis-Courmont authored May 04, 2018 and Thomas Guillem committed Mar 11, 2019

Signed-off-by: Thomas Guillem <thomas@gllm.fr>

Objects have one strong reference held by their "owner", and zero or
more weak references generated by vlc_object_hold() et al. This
provides a separate function to remove the strong reference than
vlc_object_release() to remove weak ones.

With this sole change, this is really only an annotation though.