Added frame data SetBytes() and FromImage()

examples/demuxing_decoding/main.go

@@ -4,7 +4,6 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"image"
 	"log"
 	"strings"
 
@@ -107,7 +106,6 @@ func main() {
 	}
 
 	// Loop through packets
-	var i image.Image
 	for {
 		// Read frame
 		if err := inputFormatContext.ReadFrame(pkt); err != nil {
@@ -138,35 +136,8 @@ func main() {
 				log.Fatal(fmt.Errorf("main: receiving frame failed: %w", err))
 			}
 
-			// Do something with decoded frame
-			if s.inputStream.CodecParameters().MediaType() == astiav.MediaTypeVideo {
-				// In this example, we'll process the frame data but you can do whatever you feel like
-				// with the decoded frame
-				fd := f.Data()
-
-				// Image has not yet been initialized
-				// If the image format can change in the stream, you'll need to guess image format for every frame
-				if i == nil {
-					// Guess image format
-					// It might not return an image.Image in the proper format for your use case, in that case
-					// you can skip this step and provide .ToImage() with your own image.Image
-					var err error
-					if i, err = fd.GuessImageFormat(); err != nil {
-						log.Fatal(fmt.Errorf("main: guessing image format failed: %w", err))
-					}
-				}
-
-				// Copy frame data to the image
-				if err := fd.ToImage(i); err != nil {
-					log.Fatal(fmt.Errorf("main: copying frame data to the image failed: %w", err))
-				}
-
-				// Log
-				log.Printf("new video frame: stream %d - pts: %d - size: %dx%d - color at (0,0): %+v", pkt.StreamIndex(), f.Pts(), i.Bounds().Dx(), i.Bounds().Dy(), i.At(0, 0))
-			} else {
-				// Log
-				log.Printf("new audio frame: stream %d - pts: %d", pkt.StreamIndex(), f.Pts())
-			}
+			// Log
+			log.Printf("new %s frame: stream %d - pts: %d", s.inputStream.CodecParameters().MediaType(), pkt.StreamIndex(), f.Pts())
 		}
 	}