diff options
| author | Kővágó, Zoltán <dirty.ice.hu@gmail.com> | 2020-02-02 20:38:07 +0100 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2020-02-06 14:35:57 +0100 |
| commit | ed2a4a794184df3dbd5ee4cc06e86fe220663faf (patch) | |
| tree | ed340e8120188691fd89b764ef45ad509005c9a6 /audio/audio_template.h | |
| parent | 180b044ffde2cdd4a7209c727b5a8ce93d36741f (diff) | |
audio: proper support for float samples in mixeng
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>
Diffstat (limited to 'audio/audio_template.h')
| -rw-r--r-- | audio/audio_template.h | 41 |
1 files changed, 25 insertions, 16 deletions
diff --git a/audio/audio_template.h b/audio/audio_template.h index 0336d2670c..7013d3041f 100644 --- a/audio/audio_template.h +++ b/audio/audio_template.h @@ -153,15 +153,23 @@ static int glue (audio_pcm_sw_init_, TYPE) ( sw->ratio = ((int64_t) sw->info.freq << 32) / sw->hw->info.freq; #endif + if (sw->info.is_float) { #ifdef DAC - sw->conv = mixeng_conv + sw->conv = mixeng_conv_float[sw->info.nchannels == 2]; #else - sw->clip = mixeng_clip + sw->clip = mixeng_clip_float[sw->info.nchannels == 2]; #endif - [sw->info.nchannels == 2] - [sw->info.sign] - [sw->info.swap_endianness] - [audio_bits_to_index (sw->info.bits)]; + } else { +#ifdef DAC + sw->conv = mixeng_conv +#else + sw->clip = mixeng_clip +#endif + [sw->info.nchannels == 2] + [sw->info.is_signed] + [sw->info.swap_endianness] + [audio_bits_to_index(sw->info.bits)]; + } sw->name = g_strdup (name); err = glue (audio_pcm_sw_alloc_resources_, TYPE) (sw); @@ -276,22 +284,23 @@ static HW *glue(audio_pcm_hw_add_new_, TYPE)(AudioState *s, goto err1; } - if (s->dev->driver == AUDIODEV_DRIVER_COREAUDIO) { + if (hw->info.is_float) { #ifdef DAC - hw->clip = clip_natural_float_from_stereo; + hw->clip = mixeng_clip_float[hw->info.nchannels == 2]; #else - hw->conv = conv_natural_float_to_stereo; + hw->conv = mixeng_conv_float[hw->info.nchannels == 2]; #endif - } else + } else { #ifdef DAC - hw->clip = mixeng_clip + hw->clip = mixeng_clip #else - hw->conv = mixeng_conv + hw->conv = mixeng_conv #endif - [hw->info.nchannels == 2] - [hw->info.sign] - [hw->info.swap_endianness] - [audio_bits_to_index (hw->info.bits)]; + [hw->info.nchannels == 2] + [hw->info.is_signed] + [hw->info.swap_endianness] + [audio_bits_to_index(hw->info.bits)]; + } glue(audio_pcm_hw_alloc_resources_, TYPE)(hw); |