commit 4e94dec35278db559168cad97323ec78cb1b8d07
author Tom Finegan <tomfinegan@google.com> Wed Sep 10 11:10:29 2014 -0700
committer Tom Finegan <tomfinegan@google.com> Wed Sep 10 11:14:07 2014 -0700
tree ec1ec303c801e5e9664cda2fd1f79214d261e0d0
parent 0e66848081c19e75bf68ace1ac8f93220c4af68e

examples/twopass_encoder: Use good quality.

This speeds up the encode significantly. Also added a comment about using
best quality to keep new developers informed.

Change-Id: I04e8154d4b2c4cae07fe7cc9a71e707f649e9ed4

examples/twopass_encoder.c

diff --git a/examples/twopass_encoder.c b/examples/twopass_encoder.c
index 7a7653b..653ae94 100644
--- a/examples/twopass_encoder.c
+++ b/examples/twopass_encoder.c
@@ -28,9 +28,8 @@
 // Encoding A Frame
 // ----------------
 // Encoding a frame in two pass mode is identical to the simple encoder
-// example, except the deadline is set to VPX_DL_BEST_QUALITY to get the
-// best quality possible. VPX_DL_GOOD_QUALITY could also be used.
-//
+// example. To increase the quality while sacrificing encoding speed,
+// VPX_DL_BEST_QUALITY can be used in place of VPX_DL_GOOD_QUALITY.
 //
 // Processing Statistics Packets
 // -----------------------------
@@ -141,13 +140,13 @@
   // Calculate frame statistics.
   while (vpx_img_read(raw, infile)) {
     ++frame_count;
-    get_frame_stats(&codec, raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY,
+    get_frame_stats(&codec, raw, frame_count, 1, 0, VPX_DL_GOOD_QUALITY,
                     &stats);
   }
 
   // Flush encoder.
   while (get_frame_stats(&codec, NULL, frame_count, 1, 0,
-                         VPX_DL_BEST_QUALITY, &stats)) {}
+                         VPX_DL_GOOD_QUALITY, &stats)) {}
 
   printf("Pass 0 complete. Processed %d frames.\n", frame_count);
   if (vpx_codec_destroy(&codec))
@@ -181,11 +180,11 @@
   // Encode frames.
   while (vpx_img_read(raw, infile)) {
     ++frame_count;
-    encode_frame(&codec, raw, frame_count, 1, 0, VPX_DL_BEST_QUALITY, writer);
+    encode_frame(&codec, raw, frame_count, 1, 0, VPX_DL_GOOD_QUALITY, writer);
   }
 
   // Flush encoder.
-  while (encode_frame(&codec, NULL, -1, 1, 0, VPX_DL_BEST_QUALITY, writer)) {}
+  while (encode_frame(&codec, NULL, -1, 1, 0, VPX_DL_GOOD_QUALITY, writer)) {}
 
   printf("\n");