[spatial svc]Implement alt reference frames
All changes are for spatial svc only.
1. Enable encoding hidden frames in each layer and use alt reference idex to reference the hidden frame in each layer
2. Use golden reference idx for spatial reference
3. For those layers that don't have hidden frames (caused by lack of frame buffers), reference a hidden frame in lower layers
4. Add "auto-alt-refs" in svc options
Change-Id: Idf27d1fd2fb5f3ffd9e86d2119235e3dad36c178
diff --git a/vp8/vp8_cx_iface.c b/vp8/vp8_cx_iface.c
index 4f6f9fa..4cd8c2e 100644
--- a/vp8/vp8_cx_iface.c
+++ b/vp8/vp8_cx_iface.c
@@ -9,6 +9,7 @@
*/
+#include "./vpx_config.h"
#include "vp8_rtcd.h"
#include "vpx/vpx_codec.h"
#include "vpx/internal/vpx_codec_internal.h"
@@ -1314,6 +1315,9 @@
"vp8.fpf" /* first pass filename */
#endif
VPX_SS_DEFAULT_LAYERS, /* ss_number_layers */
+#ifdef CONFIG_SPATIAL_SVC
+ {0},
+#endif
{0}, /* ss_target_bitrate */
1, /* ts_number_layers */
{0}, /* ts_target_bitrate */
