[spatial svc]Add is_spatial_svc() helper function.

Change-Id: Ice5376100d8e27cbdaddfd3cd06898cedd2720fe

vp9/encoder/vp9_bitstream.h

@@ -26,7 +26,7 @@ static INLINE int vp9_preserve_existing_gf(VP9_COMP *cpi) {
   return !cpi->multi_arf_allowed && cpi->refresh_golden_frame &&
          cpi->rc.is_src_frame_alt_ref &&
          (!cpi->use_svc ||      // Add spatial svc base layer case here
-          (cpi->svc.number_temporal_layers == 1 &&
+          (is_spatial_svc(cpi) &&
            cpi->svc.spatial_layer_id == 0 &&
            cpi->svc.layer_context[0].gold_ref_idx >=0 &&
            cpi->oxcf.ss_play_alternate[0]));

vp9/encoder/vp9_encoder.c

@@ -131,7 +131,7 @@ static void setup_frame(VP9_COMP *cpi) {
   }
 
   if (cm->frame_type == KEY_FRAME) {
-    if (!(cpi->use_svc && cpi->svc.number_temporal_layers == 1))
+    if (!is_spatial_svc(cpi))
       cpi->refresh_golden_frame = 1;
     cpi->refresh_alt_ref_frame = 1;
   } else {
@@ -477,7 +477,7 @@ static void update_frame_size(VP9_COMP *cpi) {
   vp9_init_context_buffers(cm);
   init_macroblockd(cm, xd);
 
-  if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+  if (is_spatial_svc(cpi)) {
     if (vp9_realloc_frame_buffer(&cpi->alt_ref_buffer,
                                  cm->width, cm->height,
                                  cm->subsampling_x, cm->subsampling_y,
@@ -1582,7 +1582,7 @@ void vp9_update_reference_frames(VP9_COMP *cpi) {
     cpi->alt_fb_idx = cpi->gld_fb_idx;
     cpi->gld_fb_idx = tmp;
 
-    if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+    if (is_spatial_svc(cpi)) {
       cpi->svc.layer_context[0].gold_ref_idx = cpi->gld_fb_idx;
       cpi->svc.layer_context[0].alt_ref_idx = cpi->alt_fb_idx;
     }
@@ -2006,7 +2006,7 @@ static void get_ref_frame_flags(VP9_COMP *cpi) {
     cpi->ref_frame_flags &= ~VP9_GOLD_FLAG;
 
   if (cpi->rc.frames_till_gf_update_due == INT_MAX &&
-      !(cpi->use_svc && cpi->svc.number_temporal_layers == 1))
+      !is_spatial_svc(cpi))
     cpi->ref_frame_flags &= ~VP9_GOLD_FLAG;
 
   if (cpi->alt_is_last)
@@ -2052,9 +2052,7 @@ static void configure_skippable_frame(VP9_COMP *cpi) {
   // according to the variance
 
   SVC *const svc = &cpi->svc;
-  const int is_spatial_svc = (svc->number_spatial_layers > 1) &&
-                             (svc->number_temporal_layers == 1);
-  TWO_PASS *const twopass = is_spatial_svc ?
+  TWO_PASS *const twopass = is_spatial_svc(cpi) ?
                             &svc->layer_context[svc->spatial_layer_id].twopass
                             : &cpi->twopass;
 
@@ -2182,7 +2180,7 @@ static void encode_frame_to_data_rate(VP9_COMP *cpi,
   // Check if the current frame is skippable for the partition search in the
   // second pass according to the first pass stats
   if (cpi->pass == 2 &&
-      (!cpi->use_svc || cpi->svc.number_temporal_layers == 1)) {
+      (!cpi->use_svc || is_spatial_svc(cpi))) {
     configure_skippable_frame(cpi);
   }
 
@@ -2434,7 +2432,7 @@ int vp9_receive_raw_frame(VP9_COMP *cpi, unsigned int frame_flags,
   vpx_usec_timer_start(&timer);
 
 #if CONFIG_SPATIAL_SVC
-  if (cpi->use_svc && cpi->svc.number_temporal_layers == 1)
+  if (is_spatial_svc(cpi))
     res = vp9_svc_lookahead_push(cpi, cpi->lookahead, sd, time_stamp, end_time,
                                  frame_flags);
   else
@@ -2557,14 +2555,11 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
   YV12_BUFFER_CONFIG *force_src_buffer = NULL;
   MV_REFERENCE_FRAME ref_frame;
   int arf_src_index;
-  const int is_spatial_svc = cpi->use_svc &&
-                             (cpi->svc.number_temporal_layers == 1) &&
-                             (cpi->svc.number_spatial_layers > 1);
 
   if (!cpi)
     return -1;
 
-  if (is_spatial_svc && cpi->pass == 2) {
+  if (is_spatial_svc(cpi) && cpi->pass == 2) {
 #if CONFIG_SPATIAL_SVC
     vp9_svc_lookahead_peek(cpi, cpi->lookahead, 0, 1);
 #endif
@@ -2591,7 +2586,7 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
     assert(arf_src_index <= rc->frames_to_key);
 
 #if CONFIG_SPATIAL_SVC
-    if (is_spatial_svc)
+    if (is_spatial_svc(cpi))
       cpi->source = vp9_svc_lookahead_peek(cpi, cpi->lookahead,
                                            arf_src_index, 0);
     else
@@ -2601,7 +2596,7 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
       cpi->alt_ref_source = cpi->source;
 
 #if CONFIG_SPATIAL_SVC
-      if (is_spatial_svc && cpi->svc.spatial_layer_id > 0) {
+      if (is_spatial_svc(cpi) && cpi->svc.spatial_layer_id > 0) {
         int i;
         // Reference a hidden frame from a lower layer
         for (i = cpi->svc.spatial_layer_id - 1; i >= 0; --i) {
@@ -2636,7 +2631,7 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
     // Get last frame source.
     if (cm->current_video_frame > 0) {
 #if CONFIG_SPATIAL_SVC
-      if (is_spatial_svc)
+      if (is_spatial_svc(cpi))
         cpi->last_source = vp9_svc_lookahead_peek(cpi, cpi->lookahead, -1, 0);
       else
 #endif
@@ -2647,7 +2642,7 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
 
     // Read in the source frame.
 #if CONFIG_SPATIAL_SVC
-    if (is_spatial_svc)
+    if (is_spatial_svc(cpi))
       cpi->source = vp9_svc_lookahead_pop(cpi, cpi->lookahead, flush);
     else
 #endif
@@ -2763,13 +2758,13 @@ int vp9_get_compressed_data(VP9_COMP *cpi, unsigned int *frame_flags,
   }
 
   if (cpi->pass == 1 &&
-      (!cpi->use_svc || cpi->svc.number_temporal_layers == 1)) {
+      (!cpi->use_svc || is_spatial_svc(cpi))) {
     const int lossless = is_lossless_requested(&cpi->oxcf);
     cpi->mb.fwd_txm4x4 = lossless ? vp9_fwht4x4 : vp9_fdct4x4;
     cpi->mb.itxm_add = lossless ? vp9_iwht4x4_add : vp9_idct4x4_add;
     vp9_first_pass(cpi);
   } else if (cpi->pass == 2 &&
-      (!cpi->use_svc || cpi->svc.number_temporal_layers == 1)) {
+      (!cpi->use_svc || is_spatial_svc(cpi))) {
     Pass2Encode(cpi, size, dest, frame_flags);
   } else if (cpi->use_svc) {
     SvcEncode(cpi, size, dest, frame_flags);

vp9/encoder/vp9_encoder.h

@@ -536,10 +536,16 @@ YV12_BUFFER_CONFIG *vp9_scale_if_required(VP9_COMMON *cm,
 
 void vp9_apply_encoding_flags(VP9_COMP *cpi, vpx_enc_frame_flags_t flags);
 
+static INLINE int is_spatial_svc(const struct VP9_COMP *const cpi) {
+  return cpi->use_svc &&
+         cpi->svc.number_temporal_layers == 1 &&
+         cpi->svc.number_spatial_layers > 1;
+}
+
 static INLINE int is_altref_enabled(const VP9_COMP *const cpi) {
   return cpi->oxcf.mode != REALTIME && cpi->oxcf.lag_in_frames > 0 &&
          (cpi->oxcf.play_alternate &&
-          (!(cpi->use_svc && cpi->svc.number_temporal_layers == 1) ||
+          (!is_spatial_svc(cpi) ||
            cpi->oxcf.ss_play_alternate[cpi->svc.spatial_layer_id]));
 }
 

vp9/encoder/vp9_firstpass.c

@@ -258,7 +258,7 @@ void vp9_init_first_pass(VP9_COMP *cpi) {
 }
 
 void vp9_end_first_pass(VP9_COMP *cpi) {
-  if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+  if (is_spatial_svc(cpi)) {
     int i;
     for (i = 0; i < cpi->svc.number_spatial_layers; ++i) {
       output_stats(&cpi->svc.layer_context[i].twopass.total_stats,
@@ -446,7 +446,7 @@ void vp9_first_pass(VP9_COMP *cpi) {
   set_first_pass_params(cpi);
   vp9_set_quantizer(cm, find_fp_qindex());
 
-  if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+  if (is_spatial_svc(cpi)) {
     MV_REFERENCE_FRAME ref_frame = LAST_FRAME;
     const YV12_BUFFER_CONFIG *scaled_ref_buf = NULL;
     twopass = &cpi->svc.layer_context[cpi->svc.spatial_layer_id].twopass;
@@ -615,8 +615,7 @@ void vp9_first_pass(VP9_COMP *cpi) {
                                                 &unscaled_last_source_buf_2d);
 
         // TODO(pengchong): Replace the hard-coded threshold
-        if (raw_motion_error > 25 ||
-            (cpi->use_svc && cpi->svc.number_temporal_layers == 1)) {
+        if (raw_motion_error > 25 || is_spatial_svc(cpi)) {
           // Test last reference frame using the previous best mv as the
           // starting point (best reference) for the search.
           first_pass_motion_search(cpi, x, &best_ref_mv.as_mv, &mv.as_mv,
@@ -898,7 +897,7 @@ void vp9_first_pass(VP9_COMP *cpi) {
 
   vp9_extend_frame_borders(new_yv12);
 
-  if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+  if (is_spatial_svc(cpi)) {
     vp9_update_reference_frames(cpi);
   } else {
     // Swap frame pointers so last frame refers to the frame we just compressed.
@@ -967,10 +966,8 @@ static int get_twopass_worst_quality(const VP9_COMP *cpi,
                                             BPER_MB_NORMBITS) / num_mbs;
     int q;
     int is_svc_upper_layer = 0;
-    if (cpi->use_svc && cpi->svc.number_temporal_layers == 1 &&
-        cpi->svc.spatial_layer_id > 0) {
+    if (is_spatial_svc(cpi) && cpi->svc.spatial_layer_id > 0)
       is_svc_upper_layer = 1;
-    }
 
     // Try and pick a max Q that will be high enough to encode the
     // content at the given rate.
@@ -2102,7 +2099,7 @@ void configure_buffer_updates(VP9_COMP *cpi) {
       assert(0);
       break;
   }
-  if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+  if (is_spatial_svc(cpi)) {
     if (cpi->svc.layer_context[cpi->svc.spatial_layer_id].gold_ref_idx < 0)
       cpi->refresh_golden_frame = 0;
     if (cpi->alt_ref_source == NULL)
@@ -2121,9 +2118,8 @@ void vp9_rc_get_second_pass_params(VP9_COMP *cpi) {
 
   int target_rate;
   LAYER_CONTEXT *lc = NULL;
-  const int is_spatial_svc = (cpi->use_svc &&
-                              cpi->svc.number_temporal_layers == 1);
-  if (is_spatial_svc) {
+
+  if (is_spatial_svc(cpi)) {
     lc = &cpi->svc.layer_context[cpi->svc.spatial_layer_id];
     frames_left = (int)(twopass->total_stats.count -
                   lc->current_video_frame_in_layer);
@@ -2151,7 +2147,7 @@ void vp9_rc_get_second_pass_params(VP9_COMP *cpi) {
     vp9_rc_set_frame_target(cpi, target_rate);
     cm->frame_type = INTER_FRAME;
 
-    if (is_spatial_svc) {
+    if (is_spatial_svc(cpi)) {
       if (cpi->svc.spatial_layer_id == 0) {
         lc->is_key_frame = 0;
       } else {
@@ -2167,7 +2163,7 @@ void vp9_rc_get_second_pass_params(VP9_COMP *cpi) {
 
   vp9_clear_system_state();
 
-  if (is_spatial_svc && twopass->kf_intra_err_min == 0) {
+  if (is_spatial_svc(cpi) && twopass->kf_intra_err_min == 0) {
     twopass->kf_intra_err_min = KF_MB_INTRA_MIN * cpi->common.MBs;
     twopass->gf_intra_err_min = GF_MB_INTRA_MIN * cpi->common.MBs;
   }
@@ -2175,7 +2171,8 @@ void vp9_rc_get_second_pass_params(VP9_COMP *cpi) {
   if (cpi->oxcf.rc_mode == VPX_Q) {
     twopass->active_worst_quality = cpi->oxcf.cq_level;
   } else if (cm->current_video_frame == 0 ||
-             (is_spatial_svc && lc->current_video_frame_in_layer == 0)) {
+             (is_spatial_svc(cpi) &&
+              lc->current_video_frame_in_layer == 0)) {
     // Special case code for first frame.
     const int section_target_bandwidth = (int)(twopass->bits_left /
                                                frames_left);
@@ -2201,7 +2198,7 @@ void vp9_rc_get_second_pass_params(VP9_COMP *cpi) {
     cm->frame_type = INTER_FRAME;
   }
 
-  if (is_spatial_svc) {
+  if (is_spatial_svc(cpi)) {
     if (cpi->svc.spatial_layer_id == 0) {
       lc->is_key_frame = (cm->frame_type == KEY_FRAME);
       if (lc->is_key_frame)
@@ -2232,7 +2229,7 @@ void vp9_rc_get_second_pass_params(VP9_COMP *cpi) {
     }
 
     rc->frames_till_gf_update_due = rc->baseline_gf_interval;
-    if (!is_spatial_svc)
+    if (!is_spatial_svc(cpi))
       cpi->refresh_golden_frame = 1;
   }
 

vp9/encoder/vp9_ratectrl.c

@@ -1236,7 +1236,7 @@ void vp9_rc_get_svc_params(VP9_COMP *cpi) {
     cm->frame_type = KEY_FRAME;
     rc->source_alt_ref_active = 0;
 
-    if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+    if (is_spatial_svc(cpi)) {
       cpi->svc.layer_context[cpi->svc.spatial_layer_id].is_key_frame = 1;
       cpi->ref_frame_flags &=
           (~VP9_LAST_FLAG & ~VP9_GOLD_FLAG & ~VP9_ALT_FLAG);
@@ -1248,7 +1248,7 @@ void vp9_rc_get_svc_params(VP9_COMP *cpi) {
   } else {
     cm->frame_type = INTER_FRAME;
 
-    if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+    if (is_spatial_svc(cpi)) {
       LAYER_CONTEXT *lc = &cpi->svc.layer_context[cpi->svc.spatial_layer_id];
       if (cpi->svc.spatial_layer_id == 0) {
         lc->is_key_frame = 0;

vp9/encoder/vp9_svc_layercontext.c

@@ -222,8 +222,7 @@ void vp9_inc_frame_in_layer(SVC *svc) {
 }
 
 int vp9_is_upper_layer_key_frame(const VP9_COMP *const cpi) {
-  return cpi->use_svc &&
-         cpi->svc.number_temporal_layers == 1 &&
+  return is_spatial_svc(cpi) &&
          cpi->svc.spatial_layer_id > 0 &&
          cpi->svc.layer_context[cpi->svc.spatial_layer_id].is_key_frame;
 }

vp9/encoder/vp9_temporal_filter.c

@@ -442,7 +442,7 @@ void vp9_temporal_filter(VP9_COMP *cpi, int distance) {
   }
 
   // Setup scaling factors. Scaling on each of the arnr frames is not supported
-  if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+  if (is_spatial_svc(cpi)) {
     // In spatial svc the scaling factors might be less then 1/2. So we will use
     // non-normative scaling.
     int frame_used = 0;

vp9/vp9_cx_iface.c

@@ -910,14 +910,14 @@ static vpx_codec_err_t encoder_encode(vpx_codec_alg_priv_t  *ctx,
         VP9_COMP *const cpi = (VP9_COMP *)ctx->cpi;
 
 #if CONFIG_SPATIAL_SVC
-        if (cpi->use_svc && cpi->svc.number_temporal_layers == 1)
+        if (is_spatial_svc(cpi))
           cpi->svc.layer_context[cpi->svc.spatial_layer_id].layer_size += size;
 #endif
 
         // Pack invisible frames with the next visible frame
         if (cpi->common.show_frame == 0
 #if CONFIG_SPATIAL_SVC
-            || (cpi->use_svc && cpi->svc.number_temporal_layers == 1 &&
+            || (is_spatial_svc(cpi) &&
                 cpi->svc.spatial_layer_id < cpi->svc.number_spatial_layers - 1)
 #endif
             ) {
@@ -945,7 +945,7 @@ static vpx_codec_err_t encoder_encode(vpx_codec_alg_priv_t  *ctx,
 
         if (lib_flags & FRAMEFLAGS_KEY
 #if CONFIG_SPATIAL_SVC
-            || (cpi->use_svc && cpi->svc.number_temporal_layers == 1 &&
+            || (is_spatial_svc(cpi) &&
                 cpi->svc.layer_context[0].is_key_frame)
 #endif
             )
@@ -987,7 +987,7 @@ static vpx_codec_err_t encoder_encode(vpx_codec_alg_priv_t  *ctx,
         cx_data += size;
         cx_data_sz -= size;
 #if CONFIG_SPATIAL_SVC
-        if (cpi->use_svc && cpi->svc.number_temporal_layers == 1) {
+        if (is_spatial_svc(cpi)) {
           vpx_codec_cx_pkt_t pkt = {0};
           int i;
           pkt.kind = VPX_CODEC_SPATIAL_SVC_LAYER_SIZES;