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56 lines
2.3 KiB
Go
56 lines
2.3 KiB
Go
package audio
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// /*
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// #include "gst.go.h"
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// */
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// import "C"
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// import (
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// "runtime"
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// "unsafe"
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// )
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// // ChannelMixer is a structure for mixing audio channels.
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// type ChannelMixer struct {
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// ptr *C.GstAudioChannelMixer
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// }
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// // NewChannelMixer creates a new channel mixer with the given parameters.
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// // It returns nil if the format is not supported.
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// func NewChannelMixer(flags ChannelMixerFlags, format Format, inPositions, outPositions []ChannelPosition) *ChannelMixer {
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// mixer := C.gst_audio_channel_mixer_new(
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// C.GstAudioChannelMixerFlags(flags),
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// C.GstAudioFormat(format),
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// C.gint(len(inPositions)),
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// (*C.GstAudioChannelPosition)(unsafe.Pointer(&inPositions[0])),
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// C.gint(len(outPositions)),
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// (*C.GstAudioChannelPosition)(unsafe.Pointer(&outPositions[0])),
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// )
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// if mixer == nil {
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// return nil
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// }
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// wrapped := &ChannelMixer{mixer}
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// runtime.SetFinalizer(wrapped, (*ChannelMixer).Free)
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// return wrapped
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// }
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// // MixSamples will mix the given samples.
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// //
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// // In case the samples are interleaved, in must be a slice with a single element of interleaved samples.
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// //
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// // If non-interleaved samples are used, in must be a slice of data with an element for each channel
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// // Free frees the channel mixer. The bindings will usually take care of this for you.
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// func (c *ChannelMixer) Free() { C.gst_audio_channel_mixer_free(c.ptr) }
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// // ChannelMixerFlags are flags used to configure a ChannelMixer
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// type ChannelMixerFlags int
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// // Castings for ChannelMixerFlags
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// const (
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// ChannelMixerFlagsNone ChannelMixerFlags = C.GST_AUDIO_CHANNEL_MIXER_FLAGS_NONE // (0) – no flag
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// ChannelMixerFlagsNonInterleavedIn ChannelMixerFlags = C.GST_AUDIO_CHANNEL_MIXER_FLAGS_NON_INTERLEAVED_IN // (1) – input channels are not interleaved
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// ChannelMixerFlagsNonInterleavedOut ChannelMixerFlags = C.GST_AUDIO_CHANNEL_MIXER_FLAGS_NON_INTERLEAVED_OUT // (2) – output channels are not interleaved
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// ChannelMixerFlagsUnpositionedIn ChannelMixerFlags = C.GST_AUDIO_CHANNEL_MIXER_FLAGS_UNPOSITIONED_IN // (4) – input channels are explicitly unpositioned
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// ChannelMixerFlagsUnpositionedOut ChannelMixerFlags = C.GST_AUDIO_CHANNEL_MIXER_FLAGS_UNPOSITIONED_OUT // (8) – output channels are explicitly unpositioned
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// )
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