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alsa-pcm: allow setting number of channels

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Allow passing the number of channels when creating a device to
restrict the negotiated channels.
This commit is contained in:
Wim Taymans 2020-07-01 12:54:27 +02:00
parent 267eabaf69
commit 8168dfdbc1
5 changed files with 15 additions and 0 deletions
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2
spa/plugins/alsa/alsa-pcm.h
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@ -101,6 +101,8 @@ struct state {
bool have_format;
struct spa_audio_info current_format;
unsigned int default_channels;
snd_pcm_uframes_t buffer_frames;
snd_pcm_uframes_t period_frames;
snd_pcm_format_t format;