pion / mediadevices

Go implementation of the MediaDevices API.
https://pion.ly/
MIT License
547 stars 126 forks source link

macOS 15: Black image and warning #582

Open neilyoung opened 1 month ago

neilyoung commented 1 month ago

Your readme sample:

package main

import (
    "image/jpeg"
    "os"

    "github.com/pion/mediadevices"
    "github.com/pion/mediadevices/pkg/prop"

    // This is required to register camera adapter
    _ "github.com/pion/mediadevices/pkg/driver/camera" 
    // Note: If you don't have a camera or your adapters are not supported,
    //       you can always swap your adapters with our dummy adapters below.
    // _ "github.com/pion/mediadevices/pkg/driver/videotest"
)

func main() {
    stream, _ := mediadevices.GetUserMedia(mediadevices.MediaStreamConstraints{
        Video: func(constraint *mediadevices.MediaTrackConstraints) {
            // Query for ideal resolutions
            constraint.Width = prop.Int(600)
            constraint.Height = prop.Int(400)
        },
    })

    // Since track can represent audio as well, we need to cast it to 
    // *mediadevices.VideoTrack to get video specific functionalities
    track := stream.GetVideoTracks()[0]
    videoTrack := track.(*mediadevices.VideoTrack)
    defer videoTrack.Close()

    // Create a new video reader to get the decoded frames. Release is used 
    // to return the buffer to hold frame back to the source so that the buffer 
    // can be reused for the next frames.
    videoReader := videoTrack.NewReader(false)
    frame, release, _ := videoReader.Read()
    defer release()

    // Since frame is the standard image.Image, it's compatible with Go standard 
    // library. For example, capturing the first frame and store it as a jpeg image.
    output, _ := os.Create("frame.jpg")
    jpeg.Encode(output, frame, nil)
}

produces a black jpg image and a warning:

2024-09-29 14:02:57.738 main[32584:2261337] [WARNING] skipping BGRA 83009664x734089728 since it's not supported
neilyoung commented 1 month ago

... ok with videotest