ref: 2a0d7b1a55aff0870f6bda485cf7cb63662c2337
parent: 70a5104eada4058524c3ce43754731f0c9e239a2
author: Ralph Giles <giles@mozilla.com>
date: Thu Jan 5 05:39:38 EST 2012
Reduce the default kf_max_dist to 128. The default maximum keyframe interval is 9999, or over five minutes at normal video rates. When the encoder produces streams with such a long interval seeking (with correct output) is more expensive, and live streaming is impossible. Of course the encoding application should set this parameter based on its knowledge of the intended use of the stream, but reducing the default gives better results for applications which do not. Change-Id: I900b15d74ce72ecc3ade4d43f758c5cf97a2098a
--- a/vp8/vp8_cx_iface.c
+++ b/vp8/vp8_cx_iface.c
@@ -1237,7 +1237,7 @@
/* keyframing settings (kf) */
VPX_KF_AUTO, /* g_kfmode*/
0, /* kf_min_dist */
- 9999, /* kf_max_dist */
+ 128, /* kf_max_dist */
#if VPX_ENCODER_ABI_VERSION == (1 + VPX_CODEC_ABI_VERSION)
1, /* g_delete_first_pass_file */