mirror of
https://github.com/pion/mediadevices.git
synced 2025-09-27 04:46:10 +08:00
56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
package frame
|
|
|
|
import (
|
|
"fmt"
|
|
)
|
|
|
|
type Format string
|
|
|
|
const (
|
|
// FormatI420 https://wiki.videolan.org/YUV#I420
|
|
FormatI420 Format = "I420"
|
|
// FormatI444 is a YUV format without sub-sampling
|
|
FormatI444 Format = "I444"
|
|
// FormatNV21 https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-nv12.html
|
|
FormatNV21 = "NV21"
|
|
// FormatNV12 https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-nv12.html
|
|
FormatNV12 = "NV12"
|
|
// FormatYUY2 https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-yuyv.html
|
|
// YUY2 is what Windows calls YUYV
|
|
FormatYUY2 = "YUY2"
|
|
// FormatYUYV https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-yuyv.html
|
|
FormatYUYV = "YUYV"
|
|
// FormatUYVY https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-uyvy.html
|
|
FormatUYVY = "UYVY"
|
|
|
|
// FormatRGBA https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-rgb.html
|
|
FormatRGBA Format = "RGBA"
|
|
|
|
// FormatMJPEG https://wiki.videolan.org/MJPEG
|
|
FormatMJPEG = "MJPEG"
|
|
|
|
// FormatZ16 https://www.kernel.org/doc/html/v5.9/userspace-api/media/v4l/pixfmt-z16.html
|
|
FormatZ16 = "Z16"
|
|
)
|
|
|
|
var decoderMap = map[Format]decoderFunc{
|
|
FormatI420: decodeI420,
|
|
FormatNV21: decodeNV21,
|
|
FormatNV12: decodeNV12,
|
|
FormatYUY2: decodeYUY2,
|
|
FormatYUYV: decodeYUY2,
|
|
FormatUYVY: decodeUYVY,
|
|
FormatMJPEG: decodeMJPEG,
|
|
FormatZ16: decodeZ16,
|
|
}
|
|
|
|
func NewDecoder(f Format) (Decoder, error) {
|
|
decoder, ok := decoderMap[f]
|
|
|
|
if !ok {
|
|
return nil, fmt.Errorf("%s is not supported", f)
|
|
}
|
|
|
|
return decoder, nil
|
|
}
|