*** empty log message ***

1 files changed, 44 insertions, 0 deletions

diff --git a/TODO b/TODO
index a55bfab..c006ed2 100644
--- a/TODO
+++ b/TODO
@@ -159,3 +159,47 @@ email.
                   \  ,-----------.
                    ->| Encoder   |
                      `-----------'
+
+
+==========================================================================
+ This code should convert yuv to yuv422 planar
+==========================================================================
+int Frame::ExtractYUV420( uint8_t *yuv, uint8_t *output[ 3 ] )
+{
+         unsigned char *pixels[ 3 ];
+         int pitches[ 3 ];
+         int width = GetWidth(), height = GetHeight();
+ 
+         pixels[ 0 ] = ( unsigned char* ) yuv;
+         pitches[ 0 ] = decoder->width * 2;
+ 
+         dv_decode_full_frame( decoder, data, e_dv_color_yuv, pixels, pitches );
+ 
+         int w2 = width / 2;
+         uint8_t *y = output[ 0 ];
+         uint8_t *cb = output[ 1 ];
+         uint8_t *cr = output[ 2 ];
+         uint8_t *p = yuv;
+ 
+         for ( int i = 0; i < height; i += 2 )
+         {
+                 /* process two scanlines (one from each field, interleaved) */
+                 for ( int j = 0; j < w2; j++ )
+                 {
+                         /* packed YUV 422 is: Y[i] U[i] Y[i+1] V[i] */
+                         *( y++ ) = *( p++ );
+                         *( cb++ ) = *( p++ );
+                         *( y++ ) = *( p++ );
+                         *( cr++ ) = *( p++ );
+                 }
+                 /* process next two scanlines (one from each field, interleaved) */
+                 for ( int j = 0; j < w2; j++ )
+                 {
+                         /* skip every second line for U and V */
+                         *( y++ ) = *( p++ );
+                         p++;
+                         *( y++ ) = *( p++ );
+                         p++;
+                 }
+         }
+}
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