shithub: libvpx

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Add control to get QP for all spatial layers

Change-Id: I77a9884351e71649c8f8632293d9515c60f6adbc

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

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

@@ -3709,6 +3709,10 @@

     cpi->rc.force_max_q = 0;

   }

+  if (cpi->use_svc) {

+    cpi->svc.base_qindex[cpi->svc.spatial_layer_id] = *q;

+  }

+

   if (!frame_is_intra_only(cm)) {

     vp9_set_high_precision_mv(cpi, (*q) < HIGH_PRECISION_MV_QTHRESH);

   }

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

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

@@ -173,6 +173,8 @@

   uint8_t fb_idx_temporal_layer_id[REF_FRAMES];

   int spatial_layer_sync[VPX_SS_MAX_LAYERS];

+  // Quantizer for each spatial layer.

+  int base_qindex[VPX_SS_MAX_LAYERS];

   uint8_t set_intra_only_frame;

   uint8_t previous_frame_is_intra_only;

   uint8_t superframe_has_layer_sync;

--- a/vp9/vp9_cx_iface.c

+++ b/vp9/vp9_cx_iface.c

@@ -834,6 +834,17 @@

   return VPX_CODEC_OK;

 }

+static vpx_codec_err_t ctrl_get_quantizer_svc_layers(vpx_codec_alg_priv_t *ctx,

+                                                     va_list args) {

+  int *const arg = va_arg(args, int *);

+  int i;

+  if (arg == NULL) return VPX_CODEC_INVALID_PARAM;

+  for (i = 0; i < VPX_SS_MAX_LAYERS; i++) {

+    arg[i] = ctx->cpi->svc.base_qindex[i];

+  }

+  return VPX_CODEC_OK;

+}

+

 static vpx_codec_err_t ctrl_get_loopfilter_level(vpx_codec_alg_priv_t *ctx,

                                                  va_list args) {

   int *const arg = va_arg(args, int *);

@@ -1988,6 +1999,7 @@

   // Getters

   { VP8E_GET_LAST_QUANTIZER, ctrl_get_quantizer },

   { VP8E_GET_LAST_QUANTIZER_64, ctrl_get_quantizer64 },

+  { VP9E_GET_LAST_QUANTIZER_SVC_LAYERS, ctrl_get_quantizer_svc_layers },

   { VP9E_GET_LOOPFILTER_LEVEL, ctrl_get_loopfilter_level },

   { VP9_GET_REFERENCE, ctrl_get_reference },

   { VP9E_GET_SVC_LAYER_ID, ctrl_get_svc_layer_id },

--- a/vpx/vp8cx.h

+++ b/vpx/vp8cx.h

@@ -732,6 +732,16 @@

    * Supported in codecs: VP9

    */

   VP9E_GET_LOOPFILTER_LEVEL,

+

+  /*!\brief Codec control to get last quantizers for all spatial layers.

+   *

+   * Return value uses an array of internal quantizers scale defined by the

+   * codec, for all spatial layers.

+   * The size of the array passed in should be #VPX_SS_MAX_LAYERS.

+   *

+   * Supported in codecs: VP9

+   */

+  VP9E_GET_LAST_QUANTIZER_SVC_LAYERS,

 };

 /*!\brief vpx 1-D scaling mode

@@ -989,6 +999,9 @@

 #define VPX_CTRL_VP8E_GET_LAST_QUANTIZER

 VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64, int *)

 #define VPX_CTRL_VP8E_GET_LAST_QUANTIZER_64

+VPX_CTRL_USE_TYPE(VP9E_GET_LAST_QUANTIZER_SVC_LAYERS, int *)

+#define VPX_CTRL_VP9E_GET_LAST_QUANTIZER_SVC_LAYERS

+

 VPX_CTRL_USE_TYPE(VP9E_GET_SVC_LAYER_ID, vpx_svc_layer_id_t *)

 #define VPX_CTRL_VP9E_GET_SVC_LAYER_ID