Add a new control of golden frame boost in CBR mode

0 means that golden boost is off, and uses average frame target rate,
a non-zero number means the percentage of boost over average frame
bitrate is given initially to golden frames in CBR mode.

Change-Id: If4334fe2cc424b65ae0cce27f71b5561bf1e577d

diff --git a/vp9/encoder/vp9_encoder.h b/vp9/encoder/vp9_encoder.h
index 2a7d9f40fd6b6d8899387ce5150f033a8438a5ae..1d23d80280f0b761a675084a3a9d740de58bad30 100644 (file)
--- a/vp9/encoder/vp9_encoder.h
+++ b/vp9/encoder/vp9_encoder.h
@@ -126,6 +126,8 @@ typedef struct VP9EncoderConfig {
   unsigned int rc_max_intra_bitrate_pct;
   // maximum allowed bitrate for any inter frame in % of bitrate target.
   unsigned int rc_max_inter_bitrate_pct;
+  // percent of rate boost for golden frame in CBR mode.
+  unsigned int gf_cbr_boost_pct;
 
   MODE mode;
   int pass;

diff --git a/vp9/vp9_cx_iface.c b/vp9/vp9_cx_iface.c
index 3684bf0326387589679f396f312a0a5b28737bae..d3c2a138c46378e56d199c2bb341476820eab66b 100644 (file)
--- a/vp9/vp9_cx_iface.c
+++ b/vp9/vp9_cx_iface.c
@@ -34,6 +34,7 @@ struct vp9_extracfg {
   unsigned int                cq_level;  // constrained quality level
   unsigned int                rc_max_intra_bitrate_pct;
   unsigned int                rc_max_inter_bitrate_pct;
+  unsigned int                gf_cbr_boost_pct;
   unsigned int                lossless;
   unsigned int                frame_parallel_decoding_mode;
   AQ_MODE                     aq_mode;
@@ -56,6 +57,7 @@ static struct vp9_extracfg default_extra_cfg = {
   10,                         // cq_level
   0,                          // rc_max_intra_bitrate_pct
   0,                          // rc_max_inter_bitrate_pct
+  0,                          // gf_cbr_boost_pct
   0,                          // lossless
   0,                          // frame_parallel_decoding_mode
   NO_AQ,                      // aq_mode
@@ -383,6 +385,7 @@ static vpx_codec_err_t set_encoder_config(
   oxcf->target_bandwidth = 1000 * cfg->rc_target_bitrate;
   oxcf->rc_max_intra_bitrate_pct = extra_cfg->rc_max_intra_bitrate_pct;
   oxcf->rc_max_inter_bitrate_pct = extra_cfg->rc_max_inter_bitrate_pct;
+  oxcf->gf_cbr_boost_pct = extra_cfg->gf_cbr_boost_pct;
 
   oxcf->best_allowed_q =
       extra_cfg->lossless ? 0 : vp9_quantizer_to_qindex(cfg->rc_min_quantizer);
@@ -660,6 +663,14 @@ static vpx_codec_err_t ctrl_set_rc_max_inter_bitrate_pct(
   return update_extra_cfg(ctx, &extra_cfg);
 }
 
+static vpx_codec_err_t ctrl_set_rc_gf_cbr_boost_pct(
+    vpx_codec_alg_priv_t *ctx, va_list args) {
+  struct vp9_extracfg extra_cfg = ctx->extra_cfg;
+  extra_cfg.gf_cbr_boost_pct =
+      CAST(VP8E_SET_GF_CBR_BOOST_PCT, args);
+  return update_extra_cfg(ctx, &extra_cfg);
+}
+
 static vpx_codec_err_t ctrl_set_lossless(vpx_codec_alg_priv_t *ctx,
                                          va_list args) {
   struct vp9_extracfg extra_cfg = ctx->extra_cfg;
@@ -1278,6 +1289,7 @@ static vpx_codec_ctrl_fn_map_t encoder_ctrl_maps[] = {
   {VP8E_SET_CQ_LEVEL,                 ctrl_set_cq_level},
   {VP8E_SET_MAX_INTRA_BITRATE_PCT,    ctrl_set_rc_max_intra_bitrate_pct},
   {VP8E_SET_MAX_INTER_BITRATE_PCT,    ctrl_set_rc_max_inter_bitrate_pct},
+  {VP8E_SET_GF_CBR_BOOST_PCT,         ctrl_set_rc_gf_cbr_boost_pct},
   {VP9E_SET_LOSSLESS,                 ctrl_set_lossless},
   {VP9E_SET_FRAME_PARALLEL_DECODING,  ctrl_set_frame_parallel_decoding_mode},
   {VP9E_SET_AQ_MODE,                  ctrl_set_aq_mode},

diff --git a/vpx/vp8cx.h b/vpx/vp8cx.h
index 406a0d27627449286179ad4bfcbf571052d1cd69..67e00fbff23bc9f846d6d2ec251b5b4092d7e2eb 100644 (file)
--- a/vpx/vp8cx.h
+++ b/vpx/vp8cx.h
@@ -208,6 +208,19 @@ enum vp8e_enc_control_id {
    */
   VP8E_SET_MAX_INTER_BITRATE_PCT,
 
+  /*!\brief Boost percentage for Golden Frame in CBR mode
+   *
+   * This value controls the amount of boost given to Golden Frame in
+   * CBR mode. It is expressed as a percentage of the average
+   * per-frame bitrate, with the special (and default) value 0 meaning
+   * the feature is off, i.e., no golden frame boost in CBR mode and
+   * average bitrate target is used.
+   *
+   * For example, to allow 100% more bits, i.e, 2X, in a golden frame
+   * than average frame, set this to 100.
+   *
+   */
+  VP8E_SET_GF_CBR_BOOST_PCT,
 
   /* TODO(jkoleszar): Move to vp9cx.h */
   VP9E_SET_LOSSLESS,
@@ -376,6 +389,7 @@ VPX_CTRL_USE_TYPE(VP8E_GET_LAST_QUANTIZER_64,  int *)
 VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTRA_BITRATE_PCT, unsigned int)
 VPX_CTRL_USE_TYPE(VP8E_SET_MAX_INTER_BITRATE_PCT, unsigned int)
 
+VPX_CTRL_USE_TYPE(VP8E_SET_GF_CBR_BOOST_PCT, unsigned int)
 VPX_CTRL_USE_TYPE(VP9E_SET_LOSSLESS, unsigned int)
 
 VPX_CTRL_USE_TYPE(VP9E_SET_FRAME_PARALLEL_DECODING, unsigned int)

diff --git a/vpxenc.c b/vpxenc.c
index e88dcebd878f124ed46ab454fe2d661dea60f413..2b89fc12163f9df4924f8d5f573e57dc3049ef13 100644 (file)
--- a/vpxenc.c
+++ b/vpxenc.c
@@ -351,6 +351,8 @@ static const arg_def_t max_intra_rate_pct = ARG_DEF(
     NULL, "max-intra-rate", 1, "Max I-frame bitrate (pct)");
 static const arg_def_t max_inter_rate_pct = ARG_DEF(
     NULL, "max-inter-rate", 1, "Max P-frame bitrate (pct)");
+static const arg_def_t gf_cbr_boost_pct = ARG_DEF(
+    NULL, "gf-cbr-boost", 1, "Boost for Golden Frame in CBR mode (pct)");
 
 #if CONFIG_VP8_ENCODER
 static const arg_def_t token_parts = ARG_DEF(
@@ -416,7 +418,8 @@ static const arg_def_t tune_content = ARG_DEF_ENUM(
 static const arg_def_t *vp9_args[] = {
   &cpu_used, &auto_altref, &sharpness, &static_thresh,
   &tile_cols, &tile_rows, &arnr_maxframes, &arnr_strength, &arnr_type,
-  &tune_ssim, &cq_level, &max_intra_rate_pct, &max_inter_rate_pct, &lossless,
+  &tune_ssim, &cq_level, &max_intra_rate_pct, &max_inter_rate_pct,
+  &gf_cbr_boost_pct, &lossless,
   &frame_parallel_decoding, &aq_mode, &frame_periodic_boost,
   &noise_sens, &tune_content,
 #if CONFIG_VP9 && CONFIG_VP9_HIGHBITDEPTH
@@ -430,7 +433,7 @@ static const int vp9_arg_ctrl_map[] = {
   VP9E_SET_TILE_COLUMNS, VP9E_SET_TILE_ROWS,
   VP8E_SET_ARNR_MAXFRAMES, VP8E_SET_ARNR_STRENGTH, VP8E_SET_ARNR_TYPE,
   VP8E_SET_TUNING, VP8E_SET_CQ_LEVEL, VP8E_SET_MAX_INTRA_BITRATE_PCT,
-  VP8E_SET_MAX_INTER_BITRATE_PCT,
+  VP8E_SET_MAX_INTER_BITRATE_PCT, VP8E_SET_GF_CBR_BOOST_PCT,
   VP9E_SET_LOSSLESS, VP9E_SET_FRAME_PARALLEL_DECODING, VP9E_SET_AQ_MODE,
   VP9E_SET_FRAME_PERIODIC_BOOST, VP9E_SET_NOISE_SENSITIVITY,
   VP9E_SET_TUNE_CONTENT,