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audio: proper support for float samples in mixeng

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This adds proper support for float samples in mixeng by adding a new
audio format for it.

Limitations: only native endianness is supported.  None of the virtual
sound cards support float samples (it looks like most of them only
support 8 and 16 bit, only hda supports 32 bit), it is only used for the
audio backends (i.e. host side).

Signed-off-by: Kővágó, Zoltán <DirtY.iCE.hu@gmail.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Message-id: 8a8b0b5698401b78d3c4c8ec90aef83b95babb06.1580672076.git.DirtY.iCE.hu@gmail.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Kővágó, Zoltán 2020-02-02 20:38:07 +01:00 • committed by Gerd Hoffmann
parent 180b044ffd
commit ed2a4a7941
10 changed files with 182 additions and 81 deletions
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3
audio/audio_int.h
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@ -40,7 +40,8 @@ struct audio_callback {
struct audio_pcm_info {
int bits;
int sign;
bool is_signed;
bool is_float;
int freq;
int nchannels;
int bytes_per_frame;