PATCH: libv4l-pac207-comments.patch

* PATCH: libv4l-pac207-comments.patch
@ 2008-07-04 11:09 Hans de Goede
  0 siblings, 0 replies; 2+ messages in thread
From: Hans de Goede @ 2008-07-04 11:09 UTC (permalink / raw)
  To: Thierry Merle; +Cc: video4linux-list, v4l2 library

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<now with attachment (wipes egg from face)>

Hi,

Add comments to pac207.c about what todays experiments have teached us about
the pac207 compression.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>

Regards,

Hans

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Add comments to pac207.c about what todays experiments have teached us about
the pac207 compression.

Signed-off-by: Hans de Goede <j.w.r.degoede@hhs.nl>

diff -r 61deeffda900 v4l2-apps/lib/libv4l/libv4lconvert/pac207.c

--- a/v4l2-apps/lib/libv4l/libv4lconvert/pac207.c	Fri Jul 04 07:21:55 2008 +0200
+++ b/v4l2-apps/lib/libv4l/libv4lconvert/pac207.c	Fri Jul 04 13:06:08 2008 +0200
@@ -170,15 +170,12 @@
 	    inp += pac_decompress_row(inp, outp, width);
 	    break;
 
-	default:
+	case 0x2DD2: /* prefix for "stronger" compressed lines, currently the
+			kernel driver programs the cam so that we should not
+			get any of these */
+
+	default: /* corrupt frame */
 	    /* FIXME add error reporting */
-	    /* Notice this seems to happen with high framerates (low exposure
-	       setting due to much light and bad compressible images, so most
-	       likely the usb just cannot keep us and we miss parts of some
-	       frames (sometimes of many frames in a row) messing things up
-	       completely. It might be worth to try changing the compression
-	       balance setting to see if that can compensate for this.
-	       However currently I cannot reproduce this (no daylight) */
 	    return;
 	}
 	outp += width;

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