shithub: libvpx

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vp9-svc: Allow for setting framerate per spatial layer.

Add duration to set_svc_ref_frame_config.

BUG=b/113346831

Change-Id: I63613aed6b1183f98d04831600a6bdd645c740df

--- a/examples/vp9_spatial_svc_encoder.c

+++ b/examples/vp9_spatial_svc_encoder.c

@@ -925,6 +925,9 @@

                                         svc_ctx.spatial_layers, frame_cnt == 0,

                                         &ref_frame_config);

       }

+      ref_frame_config.duration[0] = frame_duration * 1;

+      ref_frame_config.duration[1] = frame_duration * 1;

+

       vpx_codec_control(&codec, VP9E_SET_SVC_REF_FRAME_CONFIG,

                         &ref_frame_config);

       // Keep track of input frames, to account for frame drops in rate control

--- a/vp9/encoder/vp9_encoder.c

+++ b/vp9/encoder/vp9_encoder.c

@@ -6237,7 +6237,11 @@

   // adjust frame rates based on timestamps given

   if (cm->show_frame) {

-    adjust_frame_rate(cpi, source);

+    if (cpi->use_svc && cpi->svc.use_set_ref_frame_config &&

+        cpi->svc.duration[cpi->svc.spatial_layer_id] > 0)

+      vp9_svc_adjust_frame_rate(cpi);

+    else

+      adjust_frame_rate(cpi, source);

   }

   if (is_one_pass_cbr_svc(cpi)) {

--- a/vp9/encoder/vp9_svc_layercontext.c

+++ b/vp9/encoder/vp9_svc_layercontext.c

@@ -1200,3 +1200,9 @@

   vp9_copy_flags_ref_update_idx(cpi);

   vp9_svc_update_ref_frame_buffer_idx(cpi);

 }

+

+void vp9_svc_adjust_frame_rate(VP9_COMP *cpi) {

+  int64_t this_duration =

+      cpi->svc.timebase_fac * cpi->svc.duration[cpi->svc.spatial_layer_id];

+  vp9_new_framerate(cpi, 10000000.0 / this_duration);

+}

--- a/vp9/encoder/vp9_svc_layercontext.h

+++ b/vp9/encoder/vp9_svc_layercontext.h

@@ -177,6 +177,10 @@

   int temporal_layer_id_per_spatial[VPX_SS_MAX_LAYERS];

   int first_spatial_layer_to_encode;

+

+  int64_t duration[VPX_SS_MAX_LAYERS];

+

+  int64_t timebase_fac;

 } SVC;

 struct VP9_COMP;

@@ -243,6 +247,8 @@

 void vp9_svc_update_ref_frame_buffer_idx(struct VP9_COMP *const cpi);

 void vp9_svc_update_ref_frame(struct VP9_COMP *const cpi);

+

+void vp9_svc_adjust_frame_rate(struct VP9_COMP *const cpi);

 #ifdef __cplusplus

 }  // extern "C"

--- a/vp9/vp9_cx_iface.c

+++ b/vp9/vp9_cx_iface.c

@@ -1150,6 +1150,8 @@

     size_t size, cx_data_sz;

     unsigned char *cx_data;

+    cpi->svc.timebase_fac = timebase_units_to_ticks(timebase, 1);

+

     // Set up internal flags

     if (ctx->base.init_flags & VPX_CODEC_USE_PSNR) cpi->b_calculate_psnr = 1;

@@ -1537,6 +1539,7 @@

     cpi->svc.lst_fb_idx[sl] = data->lst_fb_idx[sl];

     cpi->svc.gld_fb_idx[sl] = data->gld_fb_idx[sl];

     cpi->svc.alt_fb_idx[sl] = data->alt_fb_idx[sl];

+    cpi->svc.duration[sl] = data->duration[sl];

   }

   return VPX_CODEC_OK;

 }

--- a/vpx/vp8cx.h

+++ b/vpx/vp8cx.h

@@ -810,6 +810,7 @@

   int reference_last[VPX_SS_MAX_LAYERS];    /**< Last as eference. */

   int reference_golden[VPX_SS_MAX_LAYERS];  /**< Golden as reference. */

   int reference_alt_ref[VPX_SS_MAX_LAYERS]; /**< Altref as reference. */

+  int64_t duration[VPX_SS_MAX_LAYERS];      /**< Duration per spatial layer. */

 } vpx_svc_ref_frame_config_t;

 /*!\brief VP9 svc frame dropping mode.

-- 

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