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disable compilation of debugging code

This patch avoids compiling some debugging code in onyx_if.c. The most
significant fix is to avoid generating code for vp8_write_yuv_frame,
which is never called. Some other code was removed by the dead code
elimination performed by the compiler, and this patch does it with the
preprocessor instead. There are advantages both ways.

Change-Id: I044fd43179d2e947553f0d6f2cad5b40907ac458

--- a/vp8/encoder/onyx_if.c

+++ b/vp8/encoder/onyx_if.c

@@ -2676,6 +2676,8 @@

     return 0;

 }

+

+#if OUTPUT_YUV_SRC

 void vp8_write_yuv_frame(const char *name, YV12_BUFFER_CONFIG *s)

 {

     FILE *yuv_file = fopen(name, "ab");

@@ -2711,7 +2713,9 @@

     fclose(yuv_file);

 }

+#endif

+

 static void scale_and_extend_source(YV12_BUFFER_CONFIG *sd, VP8_COMP *cpi)

 {

     VP8_COMMON *cm = &cpi->common;

@@ -4355,12 +4359,13 @@

     if (cm->frame_type == KEY_FRAME)

         cm->refresh_last_frame = 1;

-    if (0)

+#if 0

     {

         FILE *f = fopen("gfactive.stt", "a");

         fprintf(f, "%8d %8d %8d %8d %8d\n", cm->current_video_frame, (100 * cpi->gf_active_count) / (cpi->common.mb_rows * cpi->common.mb_cols), cpi->this_iiratio, cpi->next_iiratio, cm->refresh_golden_frame);

         fclose(f);

     }

+#endif

     // For inter frames the current default behaviour is that when cm->refresh_golden_frame is set we copy the old GF over to the ARF buffer

     // This is purely an encoder descision at present.

@@ -4604,9 +4609,7 @@

         }

     }

-#if CONFIG_PSNR

-

-    if (0)

+#if 0 && CONFIG_PSNR

     {

         FILE *f = fopen("tmp.stt", "a");

@@ -4731,7 +4734,7 @@

-    if (0)

+#if 0

     {

         char filename[512];

         FILE *recon_file;

@@ -4741,6 +4744,7 @@

                cm->yv12_fb[cm->lst_fb_idx].frame_size, 1, recon_file);

         fclose(recon_file);

     }

+#endif

     // DEBUG

     //vp8_write_yuv_frame("encoder_recon.yuv", cm->frame_to_show);

@@ -4800,8 +4804,6 @@

     }

 #if 0

-

-    if (0)

     {

         FILE *f = fopen("gfneeded.stt", "a");

         fprintf(f, "%10d %10d %10d %10d %10ld \n",