From: Minghai Shang <minghai@google.com>
Date: Fri, 19 Sep 2014 01:05:07 +0000 (-0700)
Subject: [spatial svc] Remove vpx_svc_parameters_t and the loop that sets it for each layer
X-Git-Tag: v1.4.0~737^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=209ee12110cad5eaeb2b80b18c5b7ae5029c9c80;p=platform%2Fupstream%2Flibvpx.git

[spatial svc] Remove vpx_svc_parameters_t and the loop that sets it for each layer

vpx_svc_parameters_t contains id, resolution and min/max qp for each spatial layer.

In this change we will use extra config to send min/max qp and scaling factors, then calculate layer resolution inside encoder.

Change-Id: Ib673303266605fe803c3b067284aae5f7a25514a
---

diff --git a/examples/vp9_spatial_svc_encoder.c b/examples/vp9_spatial_svc_encoder.c
index 14d2372..9cd716b 100644
--- a/examples/vp9_spatial_svc_encoder.c
+++ b/examples/vp9_spatial_svc_encoder.c
@@ -305,12 +305,6 @@ int main(int argc, const char **argv) {
   info.codec_fourcc = VP9_FOURCC;
   info.time_base.numerator = enc_cfg.g_timebase.num;
   info.time_base.denominator = enc_cfg.g_timebase.den;
-  if (vpx_svc_get_layer_resolution(&svc_ctx, svc_ctx.spatial_layers - 1,
-                                   (unsigned int *)&info.frame_width,
-                                   (unsigned int *)&info.frame_height) !=
-      VPX_CODEC_OK) {
-    die("Failed to get output resolution");
-  }
 
   if (!(app_input.passes == 2 && app_input.pass == 1)) {
     // We don't save the bitstream for the 1st pass on two pass rate control
diff --git a/test/svc_test.cc b/test/svc_test.cc
index a61629d..fdde702 100644
--- a/test/svc_test.cc
+++ b/test/svc_test.cc
@@ -515,37 +515,6 @@ TEST_F(SvcTest, OnePassEncodeThreeFrames) {
   FreeBitstreamBuffers(&outputs[0], 3);
 }
 
-TEST_F(SvcTest, GetLayerResolution) {
-  svc_.spatial_layers = 2;
-  vpx_svc_set_options(&svc_, "scale-factors=4/16,8/16");
-  InitializeEncoder();
-
-  // ensure that requested layer is a valid layer
-  uint32_t layer_width, layer_height;
-  vpx_codec_err_t res = vpx_svc_get_layer_resolution(&svc_, svc_.spatial_layers,
-                                     &layer_width, &layer_height);
-  EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
-
-  res = vpx_svc_get_layer_resolution(NULL, 0, &layer_width, &layer_height);
-  EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
-
-  res = vpx_svc_get_layer_resolution(&svc_, 0, NULL, &layer_height);
-  EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
-
-  res = vpx_svc_get_layer_resolution(&svc_, 0, &layer_width, NULL);
-  EXPECT_EQ(VPX_CODEC_INVALID_PARAM, res);
-
-  res = vpx_svc_get_layer_resolution(&svc_, 0, &layer_width, &layer_height);
-  EXPECT_EQ(VPX_CODEC_OK, res);
-  EXPECT_EQ(kWidth * 4 / 16, layer_width);
-  EXPECT_EQ(kHeight * 4 / 16, layer_height);
-
-  res = vpx_svc_get_layer_resolution(&svc_, 1, &layer_width, &layer_height);
-  EXPECT_EQ(VPX_CODEC_OK, res);
-  EXPECT_EQ(kWidth * 8 / 16, layer_width);
-  EXPECT_EQ(kHeight * 8 / 16, layer_height);
-}
-
 TEST_F(SvcTest, TwoPassEncode10Frames) {
   // First pass encode
   std::string stats_buf;
diff --git a/vp9/encoder/vp9_encoder.c b/vp9/encoder/vp9_encoder.c
index 9545ba0..1de797e 100644
--- a/vp9/encoder/vp9_encoder.c
+++ b/vp9/encoder/vp9_encoder.c
@@ -2446,15 +2446,7 @@ int vp9_receive_raw_frame(VP9_COMP *cpi, unsigned int frame_flags,
 
   vpx_usec_timer_start(&timer);
 
-#if CONFIG_SPATIAL_SVC
-  if (is_two_pass_svc(cpi))
-    res = vp9_svc_lookahead_push(cpi, cpi->lookahead, sd, time_stamp, end_time,
-                                 frame_flags);
-  else
-#endif
-    res = vp9_lookahead_push(cpi->lookahead,
-                             sd, time_stamp, end_time, frame_flags);
-  if (res)
+  if (vp9_lookahead_push(cpi->lookahead, sd, time_stamp, end_time, frame_flags))
     res = -1;
   vpx_usec_timer_mark(&timer);
   cpi->time_receive_data += vpx_usec_timer_elapsed(&timer);
@@ -2583,11 +2575,12 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
   MV_REFERENCE_FRAME ref_frame;
   int arf_src_index;
 
-  if (is_two_pass_svc(cpi) && oxcf->pass == 2) {
+  if (is_two_pass_svc(cpi)) {
 #if CONFIG_SPATIAL_SVC
-    vp9_svc_lookahead_peek(cpi, cpi->lookahead, 0, 1);
+    vp9_svc_start_frame(cpi);
 #endif
-    vp9_restore_layer_context(cpi);
+    if (oxcf->pass == 2)
+      vp9_restore_layer_context(cpi);
   }
 
   vpx_usec_timer_start(&cmptimer);
@@ -2606,13 +2599,7 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
   if (arf_src_index) {
     assert(arf_src_index <= rc->frames_to_key);
 
-#if CONFIG_SPATIAL_SVC
-    if (is_two_pass_svc(cpi))
-      source = vp9_svc_lookahead_peek(cpi, cpi->lookahead, arf_src_index, 0);
-    else
-#endif
-      source = vp9_lookahead_peek(cpi->lookahead, arf_src_index);
-    if (source != NULL) {
+    if ((source = vp9_lookahead_peek(cpi->lookahead, arf_src_index)) != NULL) {
       cpi->alt_ref_source = source;
 
 #if CONFIG_SPATIAL_SVC
@@ -2650,13 +2637,7 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
   if (!source) {
     // Get last frame source.
     if (cm->current_video_frame > 0) {
-#if CONFIG_SPATIAL_SVC
-      if (is_two_pass_svc(cpi))
-        last_source = vp9_svc_lookahead_peek(cpi, cpi->lookahead, -1, 0);
-      else
-#endif
-        last_source = vp9_lookahead_peek(cpi->lookahead, -1);
-      if (last_source == NULL)
+      if ((last_source = vp9_lookahead_peek(cpi->lookahead, -1)) == NULL)
         return -1;
     }
 
@@ -2909,6 +2890,12 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
   }
 
 #endif
+
+  if (is_two_pass_svc(cpi) && cm->show_frame) {
+    ++cpi->svc.spatial_layer_to_encode;
+    if (cpi->svc.spatial_layer_to_encode >= cpi->svc.number_spatial_layers)
+      cpi->svc.spatial_layer_to_encode = 0;
+  }
   return 0;
 }
 
diff --git a/vp9/encoder/vp9_lookahead.h b/vp9/encoder/vp9_lookahead.h
index 2786193..a33d300 100644
--- a/vp9/encoder/vp9_lookahead.h
+++ b/vp9/encoder/vp9_lookahead.h
@@ -30,10 +30,6 @@ struct lookahead_entry {
   int64_t             ts_start;
   int64_t             ts_end;
   unsigned int        flags;
-
-#if CONFIG_SPATIAL_SVC
-  vpx_svc_parameters_t svc_params[VPX_SS_MAX_LAYERS];
-#endif
 };
 
 // The max of past frames we want to keep in the queue.
diff --git a/vp9/encoder/vp9_svc_layercontext.c b/vp9/encoder/vp9_svc_layercontext.c
index 7545d87..1a3f296 100644
--- a/vp9/encoder/vp9_svc_layercontext.c
+++ b/vp9/encoder/vp9_svc_layercontext.c
@@ -233,51 +233,31 @@ int vp9_is_upper_layer_key_frame(const VP9_COMP *const cpi) {
 }
 
 #if CONFIG_SPATIAL_SVC
-int vp9_svc_lookahead_push(const VP9_COMP *const cpi, struct lookahead_ctx *ctx,
-                           YV12_BUFFER_CONFIG *src, int64_t ts_start,
-                           int64_t ts_end, unsigned int flags) {
-  struct lookahead_entry *buf;
-  int i, index;
+static void get_layer_resolution(const int width_org, const int height_org,
+                                 const int num, const int den,
+                                 int *width_out, int *height_out) {
+  int w, h;
 
-  if (vp9_lookahead_push(ctx, src, ts_start, ts_end, flags))
-    return 1;
+  if (width_out == NULL || height_out == NULL || den == 0)
+    return;
 
-  index = ctx->write_idx - 1;
-  if (index < 0)
-    index += ctx->max_sz;
+  w = width_org * num / den;
+  h = height_org * num / den;
 
-  buf = ctx->buf + index;
+  // make height and width even to make chrome player happy
+  w += w % 2;
+  h += h % 2;
 
-  if (buf == NULL)
-    return 1;
-
-  // Store svc parameters for each layer
-  for (i = 0; i < cpi->svc.number_spatial_layers; ++i)
-    buf->svc_params[i] = cpi->svc.layer_context[i].svc_params_received;
-
-  return 0;
+  *width_out = w;
+  *height_out = h;
 }
 
-static int copy_svc_params(VP9_COMP *const cpi, struct lookahead_entry *buf) {
-  int layer_id;
-  vpx_svc_parameters_t *layer_param;
+int vp9_svc_start_frame(VP9_COMP *const cpi) {
+  int width = 0, height = 0;
   LAYER_CONTEXT *lc;
   int count = 1 << (cpi->svc.number_temporal_layers - 1);
 
-  // Find the next layer to be encoded
-  for (layer_id = 0; layer_id < cpi->svc.number_spatial_layers; ++layer_id) {
-    if (buf->svc_params[layer_id].spatial_layer >=0)
-      break;
-  }
-
-  if (layer_id == cpi->svc.number_spatial_layers)
-    return 1;
-
-  layer_param = &buf->svc_params[layer_id];
-  cpi->svc.spatial_layer_id = layer_param->spatial_layer;
-  cpi->svc.temporal_layer_id = layer_param->temporal_layer;
-  cpi->ref_frame_flags = VP9_ALT_FLAG | VP9_GOLD_FLAG | VP9_LAST_FLAG;
-
+  cpi->svc.spatial_layer_id = cpi->svc.spatial_layer_to_encode;
   lc = &cpi->svc.layer_context[cpi->svc.spatial_layer_id];
 
   cpi->svc.temporal_layer_id = 0;
@@ -286,6 +266,8 @@ static int copy_svc_params(VP9_COMP *const cpi, struct lookahead_entry *buf) {
     count >>= 1;
   }
 
+  cpi->ref_frame_flags = VP9_ALT_FLAG | VP9_GOLD_FLAG | VP9_LAST_FLAG;
+
   cpi->lst_fb_idx =
       cpi->svc.spatial_layer_id * cpi->svc.number_temporal_layers +
       cpi->svc.temporal_layer_id;
@@ -339,13 +321,14 @@ static int copy_svc_params(VP9_COMP *const cpi, struct lookahead_entry *buf) {
     }
   }
 
-  if (vp9_set_size_literal(cpi, layer_param->width, layer_param->height) != 0)
+  get_layer_resolution(cpi->oxcf.width, cpi->oxcf.height,
+                       lc->scaling_factor_num, lc->scaling_factor_den,
+                       &width, &height);
+  if (vp9_set_size_literal(cpi, width, height) != 0)
     return VPX_CODEC_INVALID_PARAM;
 
-  cpi->oxcf.worst_allowed_q =
-      vp9_quantizer_to_qindex(layer_param->max_quantizer);
-  cpi->oxcf.best_allowed_q =
-      vp9_quantizer_to_qindex(layer_param->min_quantizer);
+  cpi->oxcf.worst_allowed_q = vp9_quantizer_to_qindex(lc->max_q);
+  cpi->oxcf.best_allowed_q = vp9_quantizer_to_qindex(lc->min_q);
 
   vp9_change_config(cpi, &cpi->oxcf);
 
@@ -356,29 +339,15 @@ static int copy_svc_params(VP9_COMP *const cpi, struct lookahead_entry *buf) {
   return 0;
 }
 
-struct lookahead_entry *vp9_svc_lookahead_peek(VP9_COMP *const cpi,
-                                               struct lookahead_ctx *ctx,
-                                               int index, int copy_params) {
-  struct lookahead_entry *buf = vp9_lookahead_peek(ctx, index);
-
-  if (buf != NULL && copy_params != 0) {
-    if (copy_svc_params(cpi, buf) != 0)
-      return NULL;
-  }
-  return buf;
-}
-
 struct lookahead_entry *vp9_svc_lookahead_pop(VP9_COMP *const cpi,
                                               struct lookahead_ctx *ctx,
                                               int drain) {
   struct lookahead_entry *buf = NULL;
 
   if (ctx->sz && (drain || ctx->sz == ctx->max_sz - MAX_PRE_FRAMES)) {
-    buf = vp9_svc_lookahead_peek(cpi, ctx, 0, 1);
+    buf = vp9_lookahead_peek(ctx, 0);
     if (buf != NULL) {
-      // Only remove the buffer when pop the highest layer. Simply set the
-      // spatial_layer to -1 for lower layers.
-      buf->svc_params[cpi->svc.spatial_layer_id].spatial_layer = -1;
+      // Only remove the buffer when pop the highest layer.
       if (cpi->svc.spatial_layer_id == cpi->svc.number_spatial_layers - 1) {
         vp9_lookahead_pop(ctx, drain);
       }
diff --git a/vp9/encoder/vp9_svc_layercontext.h b/vp9/encoder/vp9_svc_layercontext.h
index d180d1a..47a5456 100644
--- a/vp9/encoder/vp9_svc_layercontext.h
+++ b/vp9/encoder/vp9_svc_layercontext.h
@@ -24,13 +24,16 @@ typedef struct {
   int target_bandwidth;
   double framerate;
   int avg_frame_size;
+  int max_q;
+  int min_q;
+  int scaling_factor_num;
+  int scaling_factor_den;
   TWO_PASS twopass;
   vpx_fixed_buf_t rc_twopass_stats_in;
   unsigned int current_video_frame_in_layer;
   int is_key_frame;
   int frames_from_key_frame;
   FRAME_TYPE last_frame_type;
-  vpx_svc_parameters_t svc_params_received;
   struct lookahead_entry  *alt_ref_source;
   int alt_ref_idx;
   int gold_ref_idx;
@@ -45,6 +48,8 @@ typedef struct {
   int number_spatial_layers;
   int number_temporal_layers;
 
+  int spatial_layer_to_encode;
+
   // Store scaled source frames to be used for temporal filter to generate
   // a alt ref frame.
   YV12_BUFFER_CONFIG scaled_frames[MAX_LAG_BUFFERS];
@@ -88,22 +93,13 @@ void vp9_inc_frame_in_layer(struct VP9_COMP *const cpi);
 // Check if current layer is key frame in spatial upper layer
 int vp9_is_upper_layer_key_frame(const struct VP9_COMP *const cpi);
 
-// Copy the source image, flags and svc parameters into a new framebuffer
-// with the expected stride/border
-int vp9_svc_lookahead_push(const struct VP9_COMP *const cpi,
-                           struct lookahead_ctx *ctx, YV12_BUFFER_CONFIG *src,
-                           int64_t ts_start, int64_t ts_end,
-                           unsigned int flags);
-
 // Get the next source buffer to encode
 struct lookahead_entry *vp9_svc_lookahead_pop(struct VP9_COMP *const cpi,
                                               struct lookahead_ctx *ctx,
                                               int drain);
 
-// Get a future source buffer to encode
-struct lookahead_entry *vp9_svc_lookahead_peek(struct VP9_COMP *const cpi,
-                                               struct lookahead_ctx *ctx,
-                                               int index, int copy_params);
+// Start a frame and initialize svc parameters
+int vp9_svc_start_frame(struct VP9_COMP *const cpi);
 
 #ifdef __cplusplus
 }  // extern "C"
diff --git a/vp9/vp9_cx_iface.c b/vp9/vp9_cx_iface.c
index 4b24960..06aacda 100644
--- a/vp9/vp9_cx_iface.c
+++ b/vp9/vp9_cx_iface.c
@@ -1201,22 +1201,18 @@ static vpx_codec_err_t ctrl_set_svc_layer_id(vpx_codec_alg_priv_t *ctx,
 static vpx_codec_err_t ctrl_set_svc_parameters(vpx_codec_alg_priv_t *ctx,
                                                va_list args) {
   VP9_COMP *const cpi = ctx->cpi;
-  vpx_svc_parameters_t *const params = va_arg(args, vpx_svc_parameters_t *);
+  vpx_svc_extra_cfg_t *const params = va_arg(args, vpx_svc_extra_cfg_t *);
+  int i;
 
-  if (params == NULL || params->spatial_layer < 0 ||
-      params->spatial_layer >= cpi->svc.number_spatial_layers)
-    return VPX_CODEC_INVALID_PARAM;
+  for (i = 0; i < cpi->svc.number_spatial_layers; ++i) {
+    LAYER_CONTEXT *lc = &cpi->svc.layer_context[i];
 
-  if (params->spatial_layer == 0) {
-    int i;
-    for (i = 0; i < cpi->svc.number_spatial_layers; ++i) {
-      cpi->svc.layer_context[i].svc_params_received.spatial_layer = -1;
-    }
+    lc->max_q = params->max_quantizers[i];
+    lc->min_q = params->min_quantizers[i];
+    lc->scaling_factor_num = params->scaling_factor_num[i];
+    lc->scaling_factor_den = params->scaling_factor_den[i];
   }
 
-  cpi->svc.layer_context[params->spatial_layer].svc_params_received =
-      *params;
-
   return VPX_CODEC_OK;
 }
 
diff --git a/vpx/exports_enc b/vpx/exports_enc
index fd66fb3..8885920 100644
--- a/vpx/exports_enc
+++ b/vpx/exports_enc
@@ -12,4 +12,3 @@ text vpx_svc_get_message
 text vpx_svc_init
 text vpx_svc_release
 text vpx_svc_set_options
-text vpx_svc_get_layer_resolution
diff --git a/vpx/src/svc_encodeframe.c b/vpx/src/svc_encodeframe.c
index a74d4cc..773087d 100644
--- a/vpx/src/svc_encodeframe.c
+++ b/vpx/src/svc_encodeframe.c
@@ -85,10 +85,7 @@ typedef struct SvcInternal {
   char options[OPTION_BUFFER_SIZE];        // set by vpx_svc_set_options
 
   // values extracted from option, quantizers
-  int scaling_factor_num[VPX_SS_MAX_LAYERS];
-  int scaling_factor_den[VPX_SS_MAX_LAYERS];
-  int max_quantizers[VPX_SS_MAX_LAYERS];
-  int min_quantizers[VPX_SS_MAX_LAYERS];
+  vpx_svc_extra_cfg_t svc_params;
   int enable_auto_alt_ref[VPX_SS_MAX_LAYERS];
   int bitrates[VPX_SS_MAX_LAYERS];
 
@@ -174,7 +171,8 @@ static vpx_codec_err_t extract_option(LAYER_OPTION_TYPE type,
     if (*value0 < option_min_values[SCALE_FACTOR] ||
         *value1 < option_min_values[SCALE_FACTOR] ||
         *value0 > option_max_values[SCALE_FACTOR] ||
-        *value1 > option_max_values[SCALE_FACTOR])
+        *value1 > option_max_values[SCALE_FACTOR] ||
+        *value0 > *value1)  // num shouldn't be greater than den
       return VPX_CODEC_INVALID_PARAM;
   } else {
     *value0 = atoi(input);
@@ -259,16 +257,18 @@ static vpx_codec_err_t parse_options(SvcContext *svc_ctx, const char *options) {
       svc_ctx->temporal_layers = atoi(option_value);
     } else if (strcmp("scale-factors", option_name) == 0) {
       res = parse_layer_options_from_string(svc_ctx, SCALE_FACTOR, option_value,
-                                            si->scaling_factor_num,
-                                            si->scaling_factor_den);
+                                            si->svc_params.scaling_factor_num,
+                                            si->svc_params.scaling_factor_den);
       if (res != VPX_CODEC_OK) break;
     } else if (strcmp("max-quantizers", option_name) == 0) {
       res = parse_layer_options_from_string(svc_ctx, QUANTIZER, option_value,
-                                            si->max_quantizers, NULL);
+                                            si->svc_params.max_quantizers,
+                                            NULL);
       if (res != VPX_CODEC_OK) break;
     } else if (strcmp("min-quantizers", option_name) == 0) {
       res = parse_layer_options_from_string(svc_ctx, QUANTIZER, option_value,
-                                            si->min_quantizers, NULL);
+                                            si->svc_params.min_quantizers,
+                                            NULL);
       if (res != VPX_CODEC_OK) break;
     } else if (strcmp("auto-alt-refs", option_name) == 0) {
       res = parse_layer_options_from_string(svc_ctx, AUTO_ALT_REF, option_value,
@@ -290,9 +290,10 @@ static vpx_codec_err_t parse_options(SvcContext *svc_ctx, const char *options) {
   free(input_string);
 
   for (i = 0; i < svc_ctx->spatial_layers; ++i) {
-    if (si->max_quantizers[i] > MAX_QUANTIZER || si->max_quantizers[i] < 0 ||
-        si->min_quantizers[i] > si->max_quantizers[i] ||
-        si->min_quantizers[i] < 0)
+    if (si->svc_params.max_quantizers[i] > MAX_QUANTIZER ||
+        si->svc_params.max_quantizers[i] < 0 ||
+        si->svc_params.min_quantizers[i] > si->svc_params.max_quantizers[i] ||
+        si->svc_params.min_quantizers[i] < 0)
       res = VPX_CODEC_INVALID_PARAM;
   }
 
@@ -340,9 +341,9 @@ void assign_layer_bitrates(const SvcContext *svc_ctx,
     float alloc_ratio[VPX_SS_MAX_LAYERS] = {0};
 
     for (i = 0; i < svc_ctx->spatial_layers; ++i) {
-      if (si->scaling_factor_den[i] > 0) {
-        alloc_ratio[i] = (float)(si->scaling_factor_num[i] * 1.0 /
-            si->scaling_factor_den[i]);
+      if (si->svc_params.scaling_factor_den[i] > 0) {
+        alloc_ratio[i] = (float)(si->svc_params.scaling_factor_num[i] * 1.0 /
+                                 si->svc_params.scaling_factor_den[i]);
 
         alloc_ratio[i] *= alloc_ratio[i];
         total += alloc_ratio[i];
@@ -392,10 +393,10 @@ vpx_codec_err_t vpx_svc_init(SvcContext *svc_ctx, vpx_codec_ctx_t *codec_ctx,
   }
 
   for (i = 0; i < VPX_SS_MAX_LAYERS; ++i) {
-    si->max_quantizers[i] = MAX_QUANTIZER;
-    si->min_quantizers[i] = 0;
-    si->scaling_factor_num[i] = DEFAULT_SCALE_FACTORS_NUM[i];
-    si->scaling_factor_den[i] = DEFAULT_SCALE_FACTORS_DEN[i];
+    si->svc_params.max_quantizers[i] = MAX_QUANTIZER;
+    si->svc_params.min_quantizers[i] = 0;
+    si->svc_params.scaling_factor_num[i] = DEFAULT_SCALE_FACTORS_NUM[i];
+    si->svc_params.scaling_factor_den[i] = DEFAULT_SCALE_FACTORS_DEN[i];
   }
 
   // Parse aggregate command line options. Options must start with
@@ -444,62 +445,11 @@ vpx_codec_err_t vpx_svc_init(SvcContext *svc_ctx, vpx_codec_ctx_t *codec_ctx,
   }
 
   vpx_codec_control(codec_ctx, VP9E_SET_SVC, 1);
+  vpx_codec_control(codec_ctx, VP9E_SET_SVC_PARAMETERS, &si->svc_params);
 
   return VPX_CODEC_OK;
 }
 
-vpx_codec_err_t vpx_svc_get_layer_resolution(const SvcContext *svc_ctx,
-                                             int layer,
-                                             unsigned int *width,
-                                             unsigned int *height) {
-  int w, h, num, den;
-  const SvcInternal *const si = get_const_svc_internal(svc_ctx);
-
-  if (svc_ctx == NULL || si == NULL || width == NULL || height == NULL)
-    return VPX_CODEC_INVALID_PARAM;
-  if (layer < 0 || layer >= svc_ctx->spatial_layers)
-    return VPX_CODEC_INVALID_PARAM;
-
-  num = si->scaling_factor_num[layer];
-  den = si->scaling_factor_den[layer];
-  if (num == 0 || den == 0) return VPX_CODEC_INVALID_PARAM;
-
-  w = si->width * num / den;
-  h = si->height * num / den;
-
-  // make height and width even to make chrome player happy
-  w += w % 2;
-  h += h % 2;
-
-  *width = w;
-  *height = h;
-
-  return VPX_CODEC_OK;
-}
-
-static void set_svc_parameters(SvcContext *svc_ctx,
-                               vpx_codec_ctx_t *codec_ctx) {
-  int layer;
-  vpx_svc_parameters_t svc_params;
-  SvcInternal *const si = get_svc_internal(svc_ctx);
-
-  memset(&svc_params, 0, sizeof(svc_params));
-  svc_params.temporal_layer = 0;
-  svc_params.spatial_layer = si->layer;
-
-  layer = si->layer;
-  if (VPX_CODEC_OK != vpx_svc_get_layer_resolution(svc_ctx, layer,
-                                                   &svc_params.width,
-                                                   &svc_params.height)) {
-    svc_log(svc_ctx, SVC_LOG_ERROR, "vpx_svc_get_layer_resolution failed\n");
-  }
-
-  svc_params.min_quantizer = si->min_quantizers[layer];
-  svc_params.max_quantizer = si->max_quantizers[layer];
-
-  vpx_codec_control(codec_ctx, VP9E_SET_SVC_PARAMETERS, &svc_params);
-}
-
 /**
  * Encode a frame into multiple layers
  * Create a superframe containing the individual layers
@@ -517,13 +467,6 @@ vpx_codec_err_t vpx_svc_encode(SvcContext *svc_ctx, vpx_codec_ctx_t *codec_ctx,
 
   svc_log_reset(svc_ctx);
 
-  if (rawimg != NULL) {
-    // encode each layer
-    for (si->layer = 0; si->layer < svc_ctx->spatial_layers; ++si->layer) {
-      set_svc_parameters(svc_ctx, codec_ctx);
-    }
-  }
-
   res = vpx_codec_encode(codec_ctx, rawimg, pts, (uint32_t)duration, 0,
                          deadline);
   if (res != VPX_CODEC_OK) {
diff --git a/vpx/svc_context.h b/vpx/svc_context.h
index 8e98717..61b5f4b 100644
--- a/vpx/svc_context.h
+++ b/vpx/svc_context.h
@@ -79,14 +79,6 @@ const char *vpx_svc_dump_statistics(SvcContext *svc_ctx);
  */
 const char *vpx_svc_get_message(const SvcContext *svc_ctx);
 
-/**
- * return spatial resolution of the specified layer
- */
-vpx_codec_err_t vpx_svc_get_layer_resolution(const SvcContext *svc_ctx,
-                                             int layer,
-                                             unsigned int *width,
-                                             unsigned int *height);
-
 #ifdef __cplusplus
 }  // extern "C"
 #endif
diff --git a/vpx/vp8cx.h b/vpx/vp8cx.h
index 63cc541..77d9d6a 100644
--- a/vpx/vp8cx.h
+++ b/vpx/vp8cx.h
@@ -305,23 +305,6 @@ typedef enum {
   VP8_TUNE_SSIM
 } vp8e_tuning;
 
-/*!\brief  vp9 svc parameters
- *
- * This defines parameters for svc encoding.
- *
- */
-typedef struct vpx_svc_parameters {
-  unsigned int width;         /**< width of current spatial layer */
-  unsigned int height;        /**< height of current spatial layer */
-  int spatial_layer;          /**< current spatial layer number - 0 = base */
-  int temporal_layer;         /**< current temporal layer number - 0 = base */
-  int max_quantizer;          /**< max quantizer for current layer */
-  int min_quantizer;          /**< min quantizer for current layer */
-  int lst_fb_idx;             /**< last frame frame buffer index */
-  int gld_fb_idx;             /**< golden frame frame buffer index */
-  int alt_fb_idx;             /**< alt reference frame frame buffer index */
-} vpx_svc_parameters_t;
-
 /*!\brief  vp9 svc layer parameters
  *
  * This defines the spatial and temporal layer id numbers for svc encoding.
@@ -354,7 +337,7 @@ VPX_CTRL_USE_TYPE(VP8E_SET_ACTIVEMAP,          vpx_active_map_t *)
 VPX_CTRL_USE_TYPE(VP8E_SET_SCALEMODE,          vpx_scaling_mode_t *)
 
 VPX_CTRL_USE_TYPE(VP9E_SET_SVC,                int)
-VPX_CTRL_USE_TYPE(VP9E_SET_SVC_PARAMETERS,     vpx_svc_parameters_t *)
+VPX_CTRL_USE_TYPE(VP9E_SET_SVC_PARAMETERS,     void *)
 VPX_CTRL_USE_TYPE(VP9E_SET_SVC_LAYER_ID,       vpx_svc_layer_id_t *)
 
 VPX_CTRL_USE_TYPE(VP8E_SET_CPUUSED,            int)
diff --git a/vpx/vpx_encoder.h b/vpx/vpx_encoder.h
index 996fcb4..c6c7d08 100644
--- a/vpx/vpx_encoder.h
+++ b/vpx/vpx_encoder.h
@@ -711,6 +711,18 @@ extern "C" {
     unsigned int           ts_layer_id[VPX_TS_MAX_PERIODICITY];
   } vpx_codec_enc_cfg_t; /**< alias for struct vpx_codec_enc_cfg */
 
+  /*!\brief  vp9 svc extra configure parameters
+   *
+   * This defines max/min quantizers and scale factors for each layer
+   *
+   */
+  typedef struct vpx_svc_parameters {
+    int max_quantizers[VPX_SS_MAX_LAYERS];
+    int min_quantizers[VPX_SS_MAX_LAYERS];
+    int scaling_factor_num[VPX_SS_MAX_LAYERS];
+    int scaling_factor_den[VPX_SS_MAX_LAYERS];
+  } vpx_svc_extra_cfg_t;
+
 
   /*!\brief Initialize an encoder instance
    *