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VP9 SVC: Write bitstream for each spatial layer in sample.

Added control for denoiser in the sample SVC encoder.

Change-Id: I8e62aa2fc13a943eb110cb33e419e912a898bbc7

--- a/examples/vp9_spatial_svc_encoder.c

+++ b/examples/vp9_spatial_svc_encoder.c

@@ -632,7 +632,7 @@

   int end_of_stream = 0;

   int frames_received = 0;

 #if OUTPUT_RC_STATS

-  VpxVideoWriter *outfile[VPX_TS_MAX_LAYERS] = { NULL };

+  VpxVideoWriter *outfile[VPX_SS_MAX_LAYERS] = { NULL };

   struct RateControlStats rc;

   vpx_svc_layer_id_t layer_id;

   vpx_svc_ref_frame_config_t ref_frame_config;

@@ -644,6 +644,8 @@

   struct vpx_usec_timer timer;

   int64_t cx_time = 0;

   memset(&svc_ctx, 0, sizeof(svc_ctx));

+  memset(&app_input, 0, sizeof(AppInput));

+  memset(&info, 0, sizeof(VpxVideoInfo));

   exec_name = argv[0];

   parse_command_line(argc, argv, &app_input, &svc_ctx, &enc_cfg);

@@ -692,16 +694,16 @@

       die("Failed to open %s for writing\n", app_input.output_filename);

   }

 #if OUTPUT_RC_STATS

-  // For now, just write temporal layer streams.

-  // TODO(marpan): do spatial by re-writing superframe.

+  // Write out spatial layer stream.

+  // TODO(marpan/jianj): allow for writing each spatial and temporal stream.

   if (svc_ctx.output_rc_stat) {

-    for (tl = 0; tl < enc_cfg.ts_number_layers; ++tl) {

+    for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {

       char file_name[PATH_MAX];

-      snprintf(file_name, sizeof(file_name), "%s_t%d.ivf",

-               app_input.output_filename, tl);

-      outfile[tl] = vpx_video_writer_open(file_name, kContainerIVF, &info);

-      if (!outfile[tl]) die("Failed to open %s for writing", file_name);

+      snprintf(file_name, sizeof(file_name), "%s_s%d.ivf",

+               app_input.output_filename, sl);

+      outfile[sl] = vpx_video_writer_open(file_name, kContainerIVF, &info);

+      if (!outfile[sl]) die("Failed to open %s for writing", file_name);

     }

   }

 #endif

@@ -726,6 +728,8 @@

   vpx_codec_control(&codec, VP9E_SET_SVC_INTER_LAYER_PRED, 0);

+  vpx_codec_control(&codec, VP9E_SET_NOISE_SENSITIVITY, 0);

+

   // Encode frames

   while (!end_of_stream) {

     vpx_codec_iter_t iter = NULL;

@@ -800,6 +804,7 @@

             uint64_t sizes[8];

             uint64_t sizes_parsed[8];

             int count = 0;

+            int tot_size = 0;

             vp9_zero(sizes);

             vp9_zero(sizes_parsed);

 #endif

@@ -825,14 +830,16 @@

                     num_layers_encoded++;

                   }

                 }

+                tot_size = 0;

+                for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {

+                  if (cx_pkt->data.frame.spatial_layer_encoded[sl]) {

+                    tot_size += sizes[sl];

+                    vpx_video_writer_write_frame(

+                        outfile[sl], cx_pkt->data.frame.buf, tot_size,

+                        cx_pkt->data.frame.pts);

+                  }

+                }

               }

-              for (tl = layer_id.temporal_layer_id;

-                   tl < enc_cfg.ts_number_layers; ++tl) {

-                vpx_video_writer_write_frame(

-                    outfile[tl], cx_pkt->data.frame.buf, cx_pkt->data.frame.sz,

-                    cx_pkt->data.frame.pts);

-              }

-

               for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {

                 if (cx_pkt->data.frame.spatial_layer_encoded[sl]) {

                   for (tl = layer_id.temporal_layer_id;

@@ -941,8 +948,8 @@

   }

 #if OUTPUT_RC_STATS

   if (svc_ctx.output_rc_stat) {

-    for (tl = 0; tl < enc_cfg.ts_number_layers; ++tl) {

-      vpx_video_writer_close(outfile[tl]);

+    for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) {

+      vpx_video_writer_close(outfile[sl]);

     }

   }

 #endif