go : add wrapper for system info (ggerganov#456)

bindings/go/examples/go-whisper/process.go

@@ -25,6 +25,8 @@ func Process(model whisper.Model, path string, flags *Flags) error {
 		return err
 	}
 
+	fmt.Printf("\n%s\n", context.SystemInfo())
+
 	// Open the file
 	fmt.Fprintf(flags.Output(), "Loading %q\n", path)
 	fh, err := os.Open(path)

bindings/go/params.go

@@ -66,6 +66,11 @@ func (p *Params) Language() int {
 	return int(C.whisper_lang_id(p.language))
 }
 
+// Threads available
+func (p *Params) Threads() int {
+	return int(p.n_threads)
+}
+
 // Set number of threads to use
 func (p *Params) SetThreads(threads int) {
 	p.n_threads = C.int(threads)

bindings/go/pkg/whisper/context.go

@@ -1,7 +1,9 @@
 package whisper
 
 import (
+	"fmt"
 	"io"
+	"runtime"
 	"strings"
 	"time"
 
@@ -117,13 +119,22 @@ func (context *context) PrintTimings() {
 	context.model.ctx.Whisper_print_timings()
 }
 
+// SystemInfo returns the system information
+func (context *context) SystemInfo() string {
+	return fmt.Sprintf("system_info: n_threads = %d / %d | %s\n",
+		context.params.Threads(),
+		runtime.NumCPU(),
+		whisper.Whisper_print_system_info(),
+	)
+}
+
 // Use mel data at offset_ms to try and auto-detect the spoken language
 // Make sure to call whisper_pcm_to_mel() or whisper_set_mel() first.
 // Returns the probabilities of all languages.
 func (context *context) WhisperLangAutoDetect(offset_ms int, n_threads int) ([]float32, error) {
 	langProbs, err := context.model.ctx.Whisper_lang_auto_detect(offset_ms, n_threads)
 	if err != nil {
-			return nil, err
+		return nil, err
 	}
 	return langProbs, nil
 }

bindings/go/pkg/whisper/interface.go

@@ -61,8 +61,11 @@ type Context interface {
 	IsLANG(Token, string) bool // Test for token associated with a specific language
 	IsText(Token) bool         // Test for text token
 
+	// Timings
 	PrintTimings()
 	ResetTimings()
+
+	SystemInfo() string
 }
 
 // Segment is the text result of a speech recognition.