Mac Video Capture: Add support for pixel format NV12 for AVFoundation

media/base/mac/coremedia_glue.h

Index: media/base/mac/coremedia_glue.h
diff --git a/media/base/mac/coremedia_glue.h b/media/base/mac/coremedia_glue.h
index b64a27f3cf0a86cdfca9216ed816593ee4999db2..8e3303cb197679a808ac099540f1191e6382bd8c 100644
--- a/media/base/mac/coremedia_glue.h
+++ b/media/base/mac/coremedia_glue.h
@@ -48,6 +48,8 @@ class MEDIA_EXPORT CoreMediaGlue {
   } CMVideoDimensions;
   enum {
     kCMPixelFormat_422YpCbCr8_yuvs = 'yuvs',
+    kCMPixelFormat_420YpCbCr8BiPlanarVideoRange = '420v',

[mcasas, 2015/01/28 20:17:01]

|kCMPixelFormat_422YpCbCr8_yuvs| comes from CMFormatDescription.h
but the formats in l.51 and 52 don't , they are called
|kCVPixelFormat_...| and come from CVPixelBuffer, which is part
of another framework, the CoreVideo. Please correct and move to
[1], as matter of fact half the work is done [2].

[1]
https://code.google.com/p/chromium/codesearch#chromium/src/media/base/mac/cor...
[2]
https://code.google.com/p/chromium/codesearch#chromium/src/media/base/mac/cor...

[magjed_chromium, 2015/01/29 13:42:17]

Acknowledged. I changed so that I only add support for video range in this CL,
since I haven't found any device that enumerates '420f' to test with. 

+    kCMPixelFormat_420YpCbCr8BiPlanarFullRange = '420f',
   };
   enum {
     kCMVideoCodecType_JPEG_OpenDML = 'dmb1',