libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_bitstream.c

 /*
  *  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 971 matching lines @@
 }
 
 static void write_frame_size_with_refs(VP9_COMP *cpi,
                                        struct vp9_write_bit_buffer *wb) {
   VP9_COMMON *const cm = &cpi->common;
   int found = 0;
 
   MV_REFERENCE_FRAME ref_frame;
   for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
     YV12_BUFFER_CONFIG *cfg = get_ref_frame_buffer(cpi, ref_frame);
-    found = cm->width == cfg->y_crop_width &&
-            cm->height == cfg->y_crop_height;
 
     // Set "found" to 0 for temporal svc and for spatial svc key frame
     if (cpi->use_svc &&
         ((cpi->svc.number_temporal_layers > 1 &&
          cpi->oxcf.rc_mode == VPX_CBR) ||
         (cpi->svc.number_spatial_layers > 1 &&
          cpi->svc.layer_context[cpi->svc.spatial_layer_id].is_key_frame) ||
         (is_two_pass_svc(cpi) &&
          cpi->svc.encode_empty_frame_state == ENCODING &&
          cpi->svc.layer_context[0].frames_from_key_frame <
          cpi->svc.number_temporal_layers + 1))) {
       found = 0;
+    } else if (cfg != NULL) {
+      found = cm->width == cfg->y_crop_width &&
+              cm->height == cfg->y_crop_height;
     }
     vp9_wb_write_bit(wb, found);
     if (found) {
       break;
     }
   }
 
   if (!found) {
     vp9_wb_write_literal(wb, cm->width - 1, 16);
     vp9_wb_write_literal(wb, cm->height - 1, 16);
@@ skipping 91 matching lines @@
       if (cm->profile > PROFILE_0) {
         write_bitdepth_colorspace_sampling(cm, wb);
       }
 
       vp9_wb_write_literal(wb, get_refresh_mask(cpi), REF_FRAMES);
       write_frame_size(cm, wb);
     } else {
       MV_REFERENCE_FRAME ref_frame;
       vp9_wb_write_literal(wb, get_refresh_mask(cpi), REF_FRAMES);
       for (ref_frame = LAST_FRAME; ref_frame <= ALTREF_FRAME; ++ref_frame) {
-        vp9_wb_write_literal(wb, get_ref_frame_idx(cpi, ref_frame),
+        assert(get_ref_frame_map_idx(cpi, ref_frame) != INVALID_IDX);
+        vp9_wb_write_literal(wb, get_ref_frame_map_idx(cpi, ref_frame),
                              REF_FRAMES_LOG2);
         vp9_wb_write_bit(wb, cm->ref_frame_sign_bias[ref_frame]);
       }
 
       write_frame_size_with_refs(cpi, wb);
 
       vp9_wb_write_bit(wb, cm->allow_high_precision_mv);
 
       fix_interp_filter(cm, cpi->td.counts);
       write_interp_filter(cm->interp_filter, wb);
@@ skipping 108 matching lines @@
 
   first_part_size = write_compressed_header(cpi, data);
   data += first_part_size;
   // TODO(jbb): Figure out what to do if first_part_size > 16 bits.
   vp9_wb_write_literal(&saved_wb, (int)first_part_size, 16);
 
   data += encode_tiles(cpi, data);
 
   *size = data - dest;
 }