shithub: libvpx

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Add SetEncodeSpeed() to SimpleEncode

Change-Id: I2fcf37045a96bb101de3359e2e69dcc266c1dc10

--- a/vp9/simple_encode.cc

+++ b/vp9/simple_encode.cc

@@ -706,6 +706,7 @@

   frame_rate_den_ = frame_rate_den;

   target_bitrate_ = target_bitrate;

   num_frames_ = num_frames;

+  encode_speed_ = 0;

   frame_coding_index_ = 0;

   show_frame_count_ = 0;

@@ -727,12 +728,16 @@

   InitRefFrameInfo(&ref_frame_info_);

 }

+void SimpleEncode::SetEncodeSpeed(int encode_speed) {

+  encode_speed_ = encode_speed;

+}

+

 void SimpleEncode::ComputeFirstPassStats() {

   vpx_rational_t frame_rate =

       make_vpx_rational(frame_rate_num_, frame_rate_den_);

   const VP9EncoderConfig oxcf =

       vp9_get_encoder_config(frame_width_, frame_height_, frame_rate,

-                             target_bitrate_, VPX_RC_FIRST_PASS);

+                             target_bitrate_, encode_speed_, VPX_RC_FIRST_PASS);

   VP9_COMP *cpi = init_encoder(&oxcf, impl_ptr_->img_fmt);

   struct lookahead_ctx *lookahead = cpi->lookahead;

   int i;

@@ -881,7 +886,7 @@

       make_vpx_rational(frame_rate_num_, frame_rate_den_);

   VP9EncoderConfig oxcf =

       vp9_get_encoder_config(frame_width_, frame_height_, frame_rate,

-                             target_bitrate_, VPX_RC_LAST_PASS);

+                             target_bitrate_, encode_speed_, VPX_RC_LAST_PASS);

   vpx_fixed_buf_t stats;

   stats.buf = GetVectorData(impl_ptr_->first_pass_stats);

   stats.sz = sizeof(impl_ptr_->first_pass_stats[0]) *

@@ -1091,7 +1096,7 @@

       make_vpx_rational(frame_rate_num_, frame_rate_den_);

   const VP9EncoderConfig oxcf =

       vp9_get_encoder_config(frame_width_, frame_height_, frame_rate,

-                             target_bitrate_, VPX_RC_LAST_PASS);

+                             target_bitrate_, encode_speed_, VPX_RC_LAST_PASS);

   FRAME_INFO frame_info = vp9_get_frame_info(&oxcf);

   FIRST_PASS_INFO first_pass_info;

   fps_init_first_pass_info(&first_pass_info,

@@ -1108,7 +1113,7 @@

       make_vpx_rational(frame_rate_num_, frame_rate_den_);

   const VP9EncoderConfig oxcf =

       vp9_get_encoder_config(frame_width_, frame_height_, frame_rate,

-                             target_bitrate_, VPX_RC_LAST_PASS);

+                             target_bitrate_, encode_speed_, VPX_RC_LAST_PASS);

   FRAME_INFO frame_info = vp9_get_frame_info(&oxcf);

   FIRST_PASS_INFO first_pass_info;

   fps_init_first_pass_info(&first_pass_info,

--- a/vp9/simple_encode.h

+++ b/vp9/simple_encode.h

@@ -304,6 +304,15 @@

   SimpleEncode(SimpleEncode &) = delete;

   SimpleEncode &operator=(const SimpleEncode &) = delete;

+  // Adjusts the encoder's coding speed.

+  // If this function is not called, the encoder will use default encode_speed

+  // 0. Call this function before ComputeFirstPassStats() if needed.

+  // The encode_speed is equivalent to --cpu-used of the vpxenc command.

+  // The encode_speed's range should be [0, 9].

+  // Setting the encode_speed to a higher level will yield faster coding

+  // at the cost of lower compression efficiency.

+  void SetEncodeSpeed(int encode_speed);

+

   // Makes encoder compute the first pass stats and store it at

   // impl_ptr_->first_pass_stats. key_frame_map_ is also computed based on the

   // first pass stats.

@@ -405,6 +414,7 @@

   int frame_rate_den_;

   int target_bitrate_;

   int num_frames_;

+  int encode_speed_;

   std::FILE *in_file_;

   std::FILE *out_file_;

--- a/vp9/vp9_cx_iface.c

+++ b/vp9/vp9_cx_iface.c

@@ -1899,7 +1899,7 @@

 VP9EncoderConfig vp9_get_encoder_config(int frame_width, int frame_height,

                                         vpx_rational_t frame_rate,

-                                        int target_bitrate,

+                                        int target_bitrate, int encode_speed,

                                         vpx_enc_pass enc_pass) {

   /* This function will generate the same VP9EncoderConfig used by the

    * vpxenc command given below.

@@ -1910,6 +1910,7 @@

    * HEIGHT:  frame_height

    * FPS:     frame_rate

    * BITRATE: target_bitrate

+   * CPU_USED:encode_speed

    *

    * INPUT, OUTPUT, LIMIT will not affect VP9EncoderConfig

    *

@@ -1921,9 +1922,10 @@

    * BITRATE=600

    * FPS=30/1

    * LIMIT=150

+   * CPU_USED=0

    * ./vpxenc --limit=$LIMIT --width=$WIDTH --height=$HEIGHT --fps=$FPS

    * --lag-in-frames=25 \

-   *  --codec=vp9 --good --cpu-used=0 --threads=0 --profile=0 \

+   *  --codec=vp9 --good --cpu-used=CPU_USED --threads=0 --profile=0 \

    *  --min-q=0 --max-q=63 --auto-alt-ref=1 --passes=2 --kf-max-dist=150 \

    *  --kf-min-dist=0 --drop-frame=0 --static-thresh=0 --bias-pct=50 \

    *  --minsection-pct=0 --maxsection-pct=150 --arnr-maxframes=7 --psnr \

@@ -1946,6 +1948,7 @@

   oxcf.tile_columns = 0;

   oxcf.frame_parallel_decoding_mode = 0;

   oxcf.two_pass_vbrmax_section = 150;

+  oxcf.speed = abs(encode_speed);

   return oxcf;

 }

--- a/vp9/vp9_cx_iface.h

+++ b/vp9/vp9_cx_iface.h

@@ -19,7 +19,7 @@

 VP9EncoderConfig vp9_get_encoder_config(int frame_width, int frame_height,

                                         vpx_rational_t frame_rate,

-                                        int target_bitrate,

+                                        int target_bitrate, int encode_speed,

                                         vpx_enc_pass enc_pass);

 void vp9_dump_encoder_config(const VP9EncoderConfig *oxcf);