mirror of
https://github.com/asticode/go-astiav.git
synced 2025-10-07 00:52:48 +08:00
56 lines
2.6 KiB
Go
56 lines
2.6 KiB
Go
package astiav
|
|
|
|
//#cgo pkg-config: libavutil
|
|
//#include <libavutil/channel_layout.h>
|
|
import "C"
|
|
|
|
type ChannelLayout uint64
|
|
|
|
// https://github.com/FFmpeg/FFmpeg/blob/n5.0/libavutil/channel_layout.h#L90
|
|
const (
|
|
ChannelLayoutMono = ChannelLayout(C.AV_CH_LAYOUT_MONO)
|
|
ChannelLayoutStereo = ChannelLayout(C.AV_CH_LAYOUT_STEREO)
|
|
ChannelLayout2Point1 = ChannelLayout(C.AV_CH_LAYOUT_2POINT1)
|
|
ChannelLayout21 = ChannelLayout(C.AV_CH_LAYOUT_2_1)
|
|
ChannelLayoutSurround = ChannelLayout(C.AV_CH_LAYOUT_SURROUND)
|
|
ChannelLayout3Point1 = ChannelLayout(C.AV_CH_LAYOUT_3POINT1)
|
|
ChannelLayout4Point0 = ChannelLayout(C.AV_CH_LAYOUT_4POINT0)
|
|
ChannelLayout4Point1 = ChannelLayout(C.AV_CH_LAYOUT_4POINT1)
|
|
ChannelLayout22 = ChannelLayout(C.AV_CH_LAYOUT_2_2)
|
|
ChannelLayoutQuad = ChannelLayout(C.AV_CH_LAYOUT_QUAD)
|
|
ChannelLayout5Point0 = ChannelLayout(C.AV_CH_LAYOUT_5POINT0)
|
|
ChannelLayout5Point1 = ChannelLayout(C.AV_CH_LAYOUT_5POINT1)
|
|
ChannelLayout5Point0Back = ChannelLayout(C.AV_CH_LAYOUT_5POINT0_BACK)
|
|
ChannelLayout5Point1Back = ChannelLayout(C.AV_CH_LAYOUT_5POINT1_BACK)
|
|
ChannelLayout6Point0 = ChannelLayout(C.AV_CH_LAYOUT_6POINT0)
|
|
ChannelLayout6Point0Front = ChannelLayout(C.AV_CH_LAYOUT_6POINT0_FRONT)
|
|
ChannelLayoutHexagonal = ChannelLayout(C.AV_CH_LAYOUT_HEXAGONAL)
|
|
ChannelLayout6Point1 = ChannelLayout(C.AV_CH_LAYOUT_6POINT1)
|
|
ChannelLayout6Point1Back = ChannelLayout(C.AV_CH_LAYOUT_6POINT1_BACK)
|
|
ChannelLayout6Point1Front = ChannelLayout(C.AV_CH_LAYOUT_6POINT1_FRONT)
|
|
ChannelLayout7Point0 = ChannelLayout(C.AV_CH_LAYOUT_7POINT0)
|
|
ChannelLayout7Point0Front = ChannelLayout(C.AV_CH_LAYOUT_7POINT0_FRONT)
|
|
ChannelLayout7Point1 = ChannelLayout(C.AV_CH_LAYOUT_7POINT1)
|
|
ChannelLayout7Point1Wide = ChannelLayout(C.AV_CH_LAYOUT_7POINT1_WIDE)
|
|
ChannelLayout7Point1WideBack = ChannelLayout(C.AV_CH_LAYOUT_7POINT1_WIDE_BACK)
|
|
ChannelLayoutOctagonal = ChannelLayout(C.AV_CH_LAYOUT_OCTAGONAL)
|
|
ChannelLayoutHexadecagonal = ChannelLayout(C.AV_CH_LAYOUT_HEXADECAGONAL)
|
|
ChannelLayoutStereoDownmix = ChannelLayout(C.AV_CH_LAYOUT_STEREO_DOWNMIX)
|
|
)
|
|
|
|
func (l ChannelLayout) NbChannels() int {
|
|
return int(C.av_get_channel_layout_nb_channels(C.uint64_t(l)))
|
|
}
|
|
|
|
func (l ChannelLayout) String() string {
|
|
return l.StringWithNbChannels(l.NbChannels())
|
|
}
|
|
|
|
func (l ChannelLayout) StringWithNbChannels(nbChannels int) string {
|
|
s, _ := stringFromC(255, func(buf *C.char, size C.size_t) error {
|
|
C.av_get_channel_layout_string(buf, C.int(size), C.int(nbChannels), C.uint64_t(l))
|
|
return nil
|
|
})
|
|
return s
|
|
}
|