1 files changed, 143 insertions, 0 deletions
diff --git a/macosx/HBAudioTransformers.m b/macosx/HBAudioTransformers.m
new file mode 100644
index 000000000..4a4adec09
--- /dev/null
+++ b/macosx/HBAudioTransformers.m
@@ -0,0 +1,143 @@
+//
+//  HBAudioTransformers.m
+//  HandBrake
+//
+//  Created by Damiano Galassi on 26/08/2016.
+//
+//
+
+#import "HBAudioTransformers.h"
+#include "hb.h"
+
+#pragma mark - Value Trasformers
+
+@implementation HBEncoderTransformer
+
++ (Class)transformedValueClass
+{
+    return [NSString class];
+}
+
+- (id)transformedValue:(id)value
+{
+    const char *name = hb_audio_encoder_get_name([value intValue]);
+    if (name)
+    {
+        return @(name);
+    }
+    else
+    {
+        return nil;
+    }
+}
+
++ (BOOL)allowsReverseTransformation
+{
+    return YES;
+}
+
+- (id)reverseTransformedValue:(id)value
+{
+    return @(hb_audio_encoder_get_from_name([value UTF8String]));
+}
+
+@end
+
+@implementation HBMixdownTransformer
+
++ (Class)transformedValueClass
+{
+    return [NSString class];
+}
+
+- (id)transformedValue:(id)value
+{
+    const char *name = hb_mixdown_get_name([value intValue]);
+    if (name)
+    {
+        return @(name);
+    }
+    else
+    {
+        return nil;
+    }
+}
+
++ (BOOL)allowsReverseTransformation
+{
+    return YES;
+}
+
+- (id)reverseTransformedValue:(id)value
+{
+    return @(hb_mixdown_get_from_name([value UTF8String]));
+}
+
+@end
+
+@implementation HBSampleRateTransformer
+
++ (Class)transformedValueClass
+{
+    return [NSString class];
+}
+
+- (id)transformedValue:(id)value
+{
+    const char *name = hb_audio_samplerate_get_name([value intValue]);
+    if (name)
+    {
+        return @(name);
+    }
+    else
+    {
+        return nil;
+    }
+}
+
++ (BOOL)allowsReverseTransformation
+{
+    return YES;
+}
+
+- (id)reverseTransformedValue:(id)value
+{
+    int sampleRate = hb_audio_samplerate_get_from_name([value UTF8String]);
+    if (sampleRate < 0)
+    {
+        sampleRate = 0;
+    }
+    return @(sampleRate);
+}
+
+@end
+
+@implementation HBIntegerTransformer
+
++ (Class)transformedValueClass
+{
+    return [NSString class];
+}
+
+- (id)transformedValue:(id)value
+{
+    // treat -1 as a special invalid value
+    // e.g. passthru has no bitrate since we have no source
+    if ([value intValue] == -1)
+    {
+        return @"N/A";
+    }
+    return [value stringValue];
+}
+
++ (BOOL)allowsReverseTransformation
+{
+    return YES;
+}
+
+- (id)reverseTransformedValue:(id)value
+{
+    return @([value intValue]);
+}
+
+@end