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1 /*
2  *  Copyright (c) 2020 The WebM project authors. All Rights Reserved.
3  *
4  *  Use of this source code is governed by a BSD-style license
5  *  that can be found in the LICENSE file in the root of the source
6  *  tree. An additional intellectual property rights grant can be found
7  *  in the file PATENTS.  All contributing project authors may
8  *  be found in the AUTHORS file in the root of the source tree.
9  */
10 
11 #include "vp9/encoder/vp9_ext_ratectrl.h"
12 #include "vp9/encoder/vp9_encoder.h"
13 #include "vp9/common/vp9_common.h"
14 #include "vpx_dsp/psnr.h"
15 
vp9_extrc_init(EXT_RATECTRL * ext_ratectrl)16 vpx_codec_err_t vp9_extrc_init(EXT_RATECTRL *ext_ratectrl) {
17   if (ext_ratectrl == NULL) {
18     return VPX_CODEC_INVALID_PARAM;
19   }
20   vp9_zero(*ext_ratectrl);
21   return VPX_CODEC_OK;
22 }
23 
vp9_extrc_create(vpx_rc_funcs_t funcs,vpx_rc_config_t ratectrl_config,EXT_RATECTRL * ext_ratectrl)24 vpx_codec_err_t vp9_extrc_create(vpx_rc_funcs_t funcs,
25                                  vpx_rc_config_t ratectrl_config,
26                                  EXT_RATECTRL *ext_ratectrl) {
27   vpx_rc_status_t rc_status;
28   vpx_rc_firstpass_stats_t *rc_firstpass_stats;
29   if (ext_ratectrl == NULL) {
30     return VPX_CODEC_INVALID_PARAM;
31   }
32   vp9_extrc_delete(ext_ratectrl);
33   ext_ratectrl->funcs = funcs;
34   ext_ratectrl->ratectrl_config = ratectrl_config;
35   rc_status = ext_ratectrl->funcs.create_model(ext_ratectrl->funcs.priv,
36                                                &ext_ratectrl->ratectrl_config,
37                                                &ext_ratectrl->model);
38   if (rc_status == VPX_RC_ERROR) {
39     return VPX_CODEC_ERROR;
40   }
41   rc_firstpass_stats = &ext_ratectrl->rc_firstpass_stats;
42   rc_firstpass_stats->num_frames = ratectrl_config.show_frame_count;
43   rc_firstpass_stats->frame_stats =
44       vpx_malloc(sizeof(*rc_firstpass_stats->frame_stats) *
45                  rc_firstpass_stats->num_frames);
46   if (rc_firstpass_stats->frame_stats == NULL) {
47     return VPX_CODEC_MEM_ERROR;
48   }
49   ext_ratectrl->ready = 1;
50   return VPX_CODEC_OK;
51 }
52 
vp9_extrc_delete(EXT_RATECTRL * ext_ratectrl)53 vpx_codec_err_t vp9_extrc_delete(EXT_RATECTRL *ext_ratectrl) {
54   if (ext_ratectrl == NULL) {
55     return VPX_CODEC_INVALID_PARAM;
56   }
57   if (ext_ratectrl->ready) {
58     vpx_rc_status_t rc_status =
59         ext_ratectrl->funcs.delete_model(ext_ratectrl->model);
60     if (rc_status == VPX_RC_ERROR) {
61       return VPX_CODEC_ERROR;
62     }
63     vpx_free(ext_ratectrl->rc_firstpass_stats.frame_stats);
64   }
65   return vp9_extrc_init(ext_ratectrl);
66 }
67 
gen_rc_firstpass_stats(const FIRSTPASS_STATS * stats,vpx_rc_frame_stats_t * rc_frame_stats)68 static void gen_rc_firstpass_stats(const FIRSTPASS_STATS *stats,
69                                    vpx_rc_frame_stats_t *rc_frame_stats) {
70   rc_frame_stats->frame = stats->frame;
71   rc_frame_stats->weight = stats->weight;
72   rc_frame_stats->intra_error = stats->intra_error;
73   rc_frame_stats->coded_error = stats->coded_error;
74   rc_frame_stats->sr_coded_error = stats->sr_coded_error;
75   rc_frame_stats->frame_noise_energy = stats->frame_noise_energy;
76   rc_frame_stats->pcnt_inter = stats->pcnt_inter;
77   rc_frame_stats->pcnt_motion = stats->pcnt_motion;
78   rc_frame_stats->pcnt_second_ref = stats->pcnt_second_ref;
79   rc_frame_stats->pcnt_neutral = stats->pcnt_neutral;
80   rc_frame_stats->pcnt_intra_low = stats->pcnt_intra_low;
81   rc_frame_stats->pcnt_intra_high = stats->pcnt_intra_high;
82   rc_frame_stats->intra_skip_pct = stats->intra_skip_pct;
83   rc_frame_stats->intra_smooth_pct = stats->intra_smooth_pct;
84   rc_frame_stats->inactive_zone_rows = stats->inactive_zone_rows;
85   rc_frame_stats->inactive_zone_cols = stats->inactive_zone_cols;
86   rc_frame_stats->MVr = stats->MVr;
87   rc_frame_stats->mvr_abs = stats->mvr_abs;
88   rc_frame_stats->MVc = stats->MVc;
89   rc_frame_stats->mvc_abs = stats->mvc_abs;
90   rc_frame_stats->MVrv = stats->MVrv;
91   rc_frame_stats->MVcv = stats->MVcv;
92   rc_frame_stats->mv_in_out_count = stats->mv_in_out_count;
93   rc_frame_stats->duration = stats->duration;
94   rc_frame_stats->count = stats->count;
95 }
96 
vp9_extrc_send_firstpass_stats(EXT_RATECTRL * ext_ratectrl,const FIRST_PASS_INFO * first_pass_info)97 vpx_codec_err_t vp9_extrc_send_firstpass_stats(
98     EXT_RATECTRL *ext_ratectrl, const FIRST_PASS_INFO *first_pass_info) {
99   if (ext_ratectrl == NULL) {
100     return VPX_CODEC_INVALID_PARAM;
101   }
102   if (ext_ratectrl->ready) {
103     vpx_rc_status_t rc_status;
104     vpx_rc_firstpass_stats_t *rc_firstpass_stats =
105         &ext_ratectrl->rc_firstpass_stats;
106     int i;
107     assert(rc_firstpass_stats->num_frames == first_pass_info->num_frames);
108     for (i = 0; i < rc_firstpass_stats->num_frames; ++i) {
109       gen_rc_firstpass_stats(&first_pass_info->stats[i],
110                              &rc_firstpass_stats->frame_stats[i]);
111     }
112     rc_status = ext_ratectrl->funcs.send_firstpass_stats(ext_ratectrl->model,
113                                                          rc_firstpass_stats);
114     if (rc_status == VPX_RC_ERROR) {
115       return VPX_CODEC_ERROR;
116     }
117   }
118   return VPX_CODEC_OK;
119 }
120 
extrc_get_frame_type(FRAME_UPDATE_TYPE update_type)121 static int extrc_get_frame_type(FRAME_UPDATE_TYPE update_type) {
122   // TODO(angiebird): Add unit test to make sure this function behaves like
123   // get_frame_type_from_update_type()
124   // TODO(angiebird): Merge this function with get_frame_type_from_update_type()
125   switch (update_type) {
126     case KF_UPDATE: return 0;       // kFrameTypeKey;
127     case ARF_UPDATE: return 2;      // kFrameTypeAltRef;
128     case GF_UPDATE: return 4;       // kFrameTypeGolden;
129     case OVERLAY_UPDATE: return 3;  // kFrameTypeOverlay;
130     case LF_UPDATE: return 1;       // kFrameTypeInter;
131     default:
132       fprintf(stderr, "Unsupported update_type %d\n", update_type);
133       abort();
134       return 1;
135   }
136 }
137 
vp9_extrc_get_encodeframe_decision(EXT_RATECTRL * ext_ratectrl,int show_index,int coding_index,int gop_index,FRAME_UPDATE_TYPE update_type,RefCntBuffer * ref_frame_bufs[MAX_INTER_REF_FRAMES],int ref_frame_flags,vpx_rc_encodeframe_decision_t * encode_frame_decision)138 vpx_codec_err_t vp9_extrc_get_encodeframe_decision(
139     EXT_RATECTRL *ext_ratectrl, int show_index, int coding_index, int gop_index,
140     FRAME_UPDATE_TYPE update_type,
141     RefCntBuffer *ref_frame_bufs[MAX_INTER_REF_FRAMES], int ref_frame_flags,
142     vpx_rc_encodeframe_decision_t *encode_frame_decision) {
143   if (ext_ratectrl == NULL) {
144     return VPX_CODEC_INVALID_PARAM;
145   }
146   if (ext_ratectrl->ready) {
147     vpx_rc_status_t rc_status;
148     vpx_rc_encodeframe_info_t encode_frame_info;
149     encode_frame_info.show_index = show_index;
150     encode_frame_info.coding_index = coding_index;
151     encode_frame_info.gop_index = gop_index;
152     encode_frame_info.frame_type = extrc_get_frame_type(update_type);
153 
154     vp9_get_ref_frame_info(update_type, ref_frame_flags, ref_frame_bufs,
155                            encode_frame_info.ref_frame_coding_indexes,
156                            encode_frame_info.ref_frame_valid_list);
157 
158     rc_status = ext_ratectrl->funcs.get_encodeframe_decision(
159         ext_ratectrl->model, &encode_frame_info, encode_frame_decision);
160     if (rc_status == VPX_RC_ERROR) {
161       return VPX_CODEC_ERROR;
162     }
163   }
164   return VPX_CODEC_OK;
165 }
166 
vp9_extrc_update_encodeframe_result(EXT_RATECTRL * ext_ratectrl,int64_t bit_count,const YV12_BUFFER_CONFIG * source_frame,const YV12_BUFFER_CONFIG * coded_frame,uint32_t bit_depth,uint32_t input_bit_depth,const int actual_encoding_qindex)167 vpx_codec_err_t vp9_extrc_update_encodeframe_result(
168     EXT_RATECTRL *ext_ratectrl, int64_t bit_count,
169     const YV12_BUFFER_CONFIG *source_frame,
170     const YV12_BUFFER_CONFIG *coded_frame, uint32_t bit_depth,
171     uint32_t input_bit_depth, const int actual_encoding_qindex) {
172   if (ext_ratectrl == NULL) {
173     return VPX_CODEC_INVALID_PARAM;
174   }
175   if (ext_ratectrl->ready) {
176     PSNR_STATS psnr;
177     vpx_rc_status_t rc_status;
178     vpx_rc_encodeframe_result_t encode_frame_result;
179     encode_frame_result.bit_count = bit_count;
180     encode_frame_result.pixel_count =
181         source_frame->y_crop_width * source_frame->y_crop_height +
182         2 * source_frame->uv_crop_width * source_frame->uv_crop_height;
183     encode_frame_result.actual_encoding_qindex = actual_encoding_qindex;
184 #if CONFIG_VP9_HIGHBITDEPTH
185     vpx_calc_highbd_psnr(source_frame, coded_frame, &psnr, bit_depth,
186                          input_bit_depth);
187 #else
188     (void)bit_depth;
189     (void)input_bit_depth;
190     vpx_calc_psnr(source_frame, coded_frame, &psnr);
191 #endif
192     encode_frame_result.sse = psnr.sse[0];
193     rc_status = ext_ratectrl->funcs.update_encodeframe_result(
194         ext_ratectrl->model, &encode_frame_result);
195     if (rc_status == VPX_RC_ERROR) {
196       return VPX_CODEC_ERROR;
197     }
198   }
199   return VPX_CODEC_OK;
200 }
201