diff --git a/vp9/common/vp9_alloccommon.c b/vp9/common/vp9_alloccommon.c
index a2306f0d10c86b28e7825106ef9dda52b5752dad..777228298a1b73cd471331bd600799cea525c79e 100644
--- a/vp9/common/vp9_alloccommon.c
+++ b/vp9/common/vp9_alloccommon.c
@@ -204,9 +204,6 @@ void vp9_create_common(VP9_COMMON *oci) {
/* Initialise reference frame sign bias structure to defaults */
vpx_memset(oci->ref_frame_sign_bias, 0, sizeof(oci->ref_frame_sign_bias));
- /* Default disable buffer to buffer copying */
- oci->copy_buffer_to_gf = 0;
- oci->copy_buffer_to_arf = 0;
oci->kf_ymode_probs_update = 0;
}
diff --git a/vp9/common/vp9_onyxc_int.h b/vp9/common/vp9_onyxc_int.h
index ac66e4902f8560d5db6b5f94d0fd762cdfb5c9c7..bfe69762655c95b1e6632ca01b132319d17c76ad 100644
--- a/vp9/common/vp9_onyxc_int.h
+++ b/vp9/common/vp9_onyxc_int.h
@@ -206,9 +206,6 @@ typedef struct VP9Common {
int refresh_golden_frame; /* Two state 0 = NO, 1 = YES */
int refresh_alt_ref_frame; /* Two state 0 = NO, 1 = YES */
- int copy_buffer_to_gf; /* 0 none, 1 Last to GF, 2 ARF to GF */
- int copy_buffer_to_arf; /* 0 none, 1 Last to ARF, 2 GF to ARF */
-
int refresh_entropy_probs; /* Two state 0 = NO, 1 = YES */
int ref_frame_sign_bias[MAX_REF_FRAMES]; /* Two state 0, 1 */
diff --git a/vp9/decoder/vp9_decodframe.c b/vp9/decoder/vp9_decodframe.c
index 361de33b94c1617ab5f150eae6ff3cc6f08702e6..648a84eadac07c6e303133231249c88e7acf0c24 100644
--- a/vp9/decoder/vp9_decodframe.c
+++ b/vp9/decoder/vp9_decodframe.c
@@ -1290,8 +1290,6 @@ static void init_frame(VP9D_COMP *pbi) {
/* All buffers are implicitly updated on key frames. */
pc->refresh_golden_frame = 1;
pc->refresh_alt_ref_frame = 1;
- pc->copy_buffer_to_gf = 0;
- pc->copy_buffer_to_arf = 0;
/* Note that Golden and Altref modes cannot be used on a key frame so
* ref_frame_sign_bias[] is undefined and meaningless
@@ -1656,17 +1654,6 @@ int vp9_decode_frame(VP9D_COMP *pbi, const unsigned char **p_data_end) {
vpx_memcpy(&pc->fc, &pc->lfc, sizeof(pc->fc));
}
- /* Buffer to buffer copy flags. */
- pc->copy_buffer_to_gf = 0;
-
- if (!pc->refresh_golden_frame)
- pc->copy_buffer_to_gf = vp9_read_literal(&header_bc, 2);
-
- pc->copy_buffer_to_arf = 0;
-
- if (!pc->refresh_alt_ref_frame)
- pc->copy_buffer_to_arf = vp9_read_literal(&header_bc, 2);
-
pc->ref_frame_sign_bias[GOLDEN_FRAME] = vp9_read_bit(&header_bc);
pc->ref_frame_sign_bias[ALTREF_FRAME] = vp9_read_bit(&header_bc);
diff --git a/vp9/decoder/vp9_onyxd_if.c b/vp9/decoder/vp9_onyxd_if.c
index b3b75af70794fac4c0a5c4e25c7ae87f7ecb75c3..6ae7b75d6a73a25265404a4ca7d02b258229360f 100644
--- a/vp9/decoder/vp9_onyxd_if.c
+++ b/vp9/decoder/vp9_onyxd_if.c
@@ -259,36 +259,8 @@ static int swap_frame_buffers(VP9_COMMON *cm) {
int err = 0;
/* The alternate reference frame or golden frame can be updated
- * using the new, last, or golden/alt ref frame. If it
- * is updated using the newly decoded frame it is a refresh.
- * An update using the last or golden/alt ref frame is a copy.
+ * using the new frame.
*/
- if (cm->copy_buffer_to_arf) {
- int new_fb = 0;
-
- if (cm->copy_buffer_to_arf == 1)
- new_fb = cm->lst_fb_idx;
- else if (cm->copy_buffer_to_arf == 2)
- new_fb = cm->gld_fb_idx;
- else
- err = -1;
-
- ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->alt_fb_idx, new_fb);
- }
-
- if (cm->copy_buffer_to_gf) {
- int new_fb = 0;
-
- if (cm->copy_buffer_to_gf == 1)
- new_fb = cm->lst_fb_idx;
- else if (cm->copy_buffer_to_gf == 2)
- new_fb = cm->alt_fb_idx;
- else
- err = -1;
-
- ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->gld_fb_idx, new_fb);
- }
-
if (cm->refresh_golden_frame)
ref_cnt_fb(cm->fb_idx_ref_cnt, &cm->gld_fb_idx, cm->new_fb_idx);
diff --git a/vp9/encoder/vp9_bitstream.c b/vp9/encoder/vp9_bitstream.c
index 61aac5cd1c37c98308dea667054f403700d14234..1489752059e85ad2c072b2a025fe73b91d153872 100644
--- a/vp9/encoder/vp9_bitstream.c
+++ b/vp9/encoder/vp9_bitstream.c
@@ -1776,19 +1776,6 @@ void vp9_pack_bitstream(VP9_COMP *cpi, unsigned char *dest,
vp9_write_bit(&header_bc, pc->refresh_golden_frame);
vp9_write_bit(&header_bc, pc->refresh_alt_ref_frame);
- // For inter frames the current default behavior is that when
- // cm->refresh_golden_frame is set we copy the old GF over to
- // the ARF buffer. This is purely an encoder decision at present.
- if (pc->refresh_golden_frame)
- pc->copy_buffer_to_arf = 2;
-
- // If not being updated from current frame should either GF or ARF be updated from another buffer
- if (!pc->refresh_golden_frame)
- vp9_write_literal(&header_bc, pc->copy_buffer_to_gf, 2);
-
- if (!pc->refresh_alt_ref_frame)
- vp9_write_literal(&header_bc, pc->copy_buffer_to_arf, 2);
-
// Indicate reference frame sign bias for Golden and ARF frames (always 0 for last frame buffer)
vp9_write_bit(&header_bc, pc->ref_frame_sign_bias[GOLDEN_FRAME]);
vp9_write_bit(&header_bc, pc->ref_frame_sign_bias[ALTREF_FRAME]);
diff --git a/vp9/encoder/vp9_onyx_if.c b/vp9/encoder/vp9_onyx_if.c
index fbdc2d2cca871b5e0170a5b084292ec90951568b..c133bf23db48d0a31e264ad4bf2788b0a2705b35 100644
--- a/vp9/encoder/vp9_onyx_if.c
+++ b/vp9/encoder/vp9_onyx_if.c
@@ -2578,51 +2578,15 @@ static void update_reference_frames(VP9_COMMON *cm) {
cm->alt_fb_idx = cm->gld_fb_idx = cm->new_fb_idx;
} else { /* For non key frames */
if (cm->refresh_alt_ref_frame) {
- assert(!cm->copy_buffer_to_arf);
-
cm->yv12_fb[cm->new_fb_idx].flags |= VP9_ALT_FLAG;
cm->yv12_fb[cm->alt_fb_idx].flags &= ~VP9_ALT_FLAG;
cm->alt_fb_idx = cm->new_fb_idx;
- } else if (cm->copy_buffer_to_arf) {
- assert(!(cm->copy_buffer_to_arf & ~0x3));
-
- if (cm->copy_buffer_to_arf == 1) {
- if (cm->alt_fb_idx != cm->lst_fb_idx) {
- yv12_fb[cm->lst_fb_idx].flags |= VP9_ALT_FLAG;
- yv12_fb[cm->alt_fb_idx].flags &= ~VP9_ALT_FLAG;
- cm->alt_fb_idx = cm->lst_fb_idx;
- }
- } else { /* if (cm->copy_buffer_to_arf == 2) */
- if (cm->alt_fb_idx != cm->gld_fb_idx) {
- yv12_fb[cm->gld_fb_idx].flags |= VP9_ALT_FLAG;
- yv12_fb[cm->alt_fb_idx].flags &= ~VP9_ALT_FLAG;
- cm->alt_fb_idx = cm->gld_fb_idx;
- }
- }
}
if (cm->refresh_golden_frame) {
- assert(!cm->copy_buffer_to_gf);
-
cm->yv12_fb[cm->new_fb_idx].flags |= VP9_GOLD_FLAG;
cm->yv12_fb[cm->gld_fb_idx].flags &= ~VP9_GOLD_FLAG;
cm->gld_fb_idx = cm->new_fb_idx;
- } else if (cm->copy_buffer_to_gf) {
- assert(!(cm->copy_buffer_to_arf & ~0x3));
-
- if (cm->copy_buffer_to_gf == 1) {
- if (cm->gld_fb_idx != cm->lst_fb_idx) {
- yv12_fb[cm->lst_fb_idx].flags |= VP9_GOLD_FLAG;
- yv12_fb[cm->gld_fb_idx].flags &= ~VP9_GOLD_FLAG;
- cm->gld_fb_idx = cm->lst_fb_idx;
- }
- } else { /* if (cm->copy_buffer_to_gf == 2) */
- if (cm->alt_fb_idx != cm->gld_fb_idx) {
- yv12_fb[cm->alt_fb_idx].flags |= VP9_GOLD_FLAG;
- yv12_fb[cm->gld_fb_idx].flags &= ~VP9_GOLD_FLAG;
- cm->gld_fb_idx = cm->alt_fb_idx;
- }
- }
}
}
@@ -2786,10 +2750,6 @@ static void encode_frame_to_data_rate(VP9_COMP *cpi,
cpi->output_frame_rate);
}
- // Default turn off buffer to buffer copying
- cm->copy_buffer_to_gf = 0;
- cm->copy_buffer_to_arf = 0;
-
// Clear zbin over-quant value and mode boost values.
cpi->zbin_over_quant = 0;
cpi->zbin_mode_boost = 0;
@@ -3810,7 +3770,6 @@ static int frame_is_reference(const VP9_COMP *cpi) {
return cm->frame_type == KEY_FRAME || cm->refresh_last_frame
|| cm->refresh_golden_frame || cm->refresh_alt_ref_frame
- || cm->copy_buffer_to_gf || cm->copy_buffer_to_arf
|| cm->refresh_entropy_probs
|| xd->mode_ref_lf_delta_update
|| xd->update_mb_segmentation_map || xd->update_mb_segmentation_data;