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Diffstat (limited to 'media/libvpx/libvpx/examples/vpx_temporal_svc_encoder.c')
| -rw-r--r-- | media/libvpx/libvpx/examples/vpx_temporal_svc_encoder.c | 1069 |
1 files changed, 1069 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/examples/vpx_temporal_svc_encoder.c b/media/libvpx/libvpx/examples/vpx_temporal_svc_encoder.c new file mode 100644 index 0000000000..a80027822a --- /dev/null +++ b/media/libvpx/libvpx/examples/vpx_temporal_svc_encoder.c @@ -0,0 +1,1069 @@ +/* + * Copyright (c) 2012 The WebM project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + +// This is an example demonstrating how to implement a multi-layer VPx +// encoding scheme based on temporal scalability for video applications +// that benefit from a scalable bitstream. + +#include <assert.h> +#include <math.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "./vpx_config.h" +#include "./y4minput.h" +#include "../vpx_ports/vpx_timer.h" +#include "vpx/vp8cx.h" +#include "vpx/vpx_encoder.h" +#include "vpx_ports/bitops.h" + +#include "../tools_common.h" +#include "../video_writer.h" + +#define ROI_MAP 0 + +#define zero(Dest) memset(&(Dest), 0, sizeof(Dest)) + +static const char *exec_name; + +void usage_exit(void) { exit(EXIT_FAILURE); } + +// Denoiser states for vp8, for temporal denoising. +enum denoiserStateVp8 { + kVp8DenoiserOff, + kVp8DenoiserOnYOnly, + kVp8DenoiserOnYUV, + kVp8DenoiserOnYUVAggressive, + kVp8DenoiserOnAdaptive +}; + +// Denoiser states for vp9, for temporal denoising. +enum denoiserStateVp9 { + kVp9DenoiserOff, + kVp9DenoiserOnYOnly, + // For SVC: denoise the top two spatial layers. + kVp9DenoiserOnYTwoSpatialLayers +}; + +static int mode_to_num_layers[13] = { 1, 2, 2, 3, 3, 3, 3, 5, 2, 3, 3, 3, 3 }; + +// For rate control encoding stats. +struct RateControlMetrics { + // Number of input frames per layer. + int layer_input_frames[VPX_TS_MAX_LAYERS]; + // Total (cumulative) number of encoded frames per layer. + int layer_tot_enc_frames[VPX_TS_MAX_LAYERS]; + // Number of encoded non-key frames per layer. + int layer_enc_frames[VPX_TS_MAX_LAYERS]; + // Framerate per layer layer (cumulative). + double layer_framerate[VPX_TS_MAX_LAYERS]; + // Target average frame size per layer (per-frame-bandwidth per layer). + double layer_pfb[VPX_TS_MAX_LAYERS]; + // Actual average frame size per layer. + double layer_avg_frame_size[VPX_TS_MAX_LAYERS]; + // Average rate mismatch per layer (|target - actual| / target). + double layer_avg_rate_mismatch[VPX_TS_MAX_LAYERS]; + // Actual encoding bitrate per layer (cumulative). + double layer_encoding_bitrate[VPX_TS_MAX_LAYERS]; + // Average of the short-time encoder actual bitrate. + // TODO(marpan): Should we add these short-time stats for each layer? + double avg_st_encoding_bitrate; + // Variance of the short-time encoder actual bitrate. + double variance_st_encoding_bitrate; + // Window (number of frames) for computing short-timee encoding bitrate. + int window_size; + // Number of window measurements. + int window_count; + int layer_target_bitrate[VPX_MAX_LAYERS]; +}; + +// Note: these rate control metrics assume only 1 key frame in the +// sequence (i.e., first frame only). So for temporal pattern# 7 +// (which has key frame for every frame on base layer), the metrics +// computation will be off/wrong. +// TODO(marpan): Update these metrics to account for multiple key frames +// in the stream. +static void set_rate_control_metrics(struct RateControlMetrics *rc, + vpx_codec_enc_cfg_t *cfg) { + int i = 0; + // Set the layer (cumulative) framerate and the target layer (non-cumulative) + // per-frame-bandwidth, for the rate control encoding stats below. + const double framerate = cfg->g_timebase.den / cfg->g_timebase.num; + const int ts_number_layers = cfg->ts_number_layers; + rc->layer_framerate[0] = framerate / cfg->ts_rate_decimator[0]; + rc->layer_pfb[0] = + 1000.0 * rc->layer_target_bitrate[0] / rc->layer_framerate[0]; + for (i = 0; i < ts_number_layers; ++i) { + if (i > 0) { + rc->layer_framerate[i] = framerate / cfg->ts_rate_decimator[i]; + rc->layer_pfb[i] = + 1000.0 * + (rc->layer_target_bitrate[i] - rc->layer_target_bitrate[i - 1]) / + (rc->layer_framerate[i] - rc->layer_framerate[i - 1]); + } + rc->layer_input_frames[i] = 0; + rc->layer_enc_frames[i] = 0; + rc->layer_tot_enc_frames[i] = 0; + rc->layer_encoding_bitrate[i] = 0.0; + rc->layer_avg_frame_size[i] = 0.0; + rc->layer_avg_rate_mismatch[i] = 0.0; + } + rc->window_count = 0; + rc->window_size = 15; + rc->avg_st_encoding_bitrate = 0.0; + rc->variance_st_encoding_bitrate = 0.0; + // Target bandwidth for the whole stream. + // Set to layer_target_bitrate for highest layer (total bitrate). + cfg->rc_target_bitrate = rc->layer_target_bitrate[ts_number_layers - 1]; +} + +static void printout_rate_control_summary(struct RateControlMetrics *rc, + vpx_codec_enc_cfg_t *cfg, + int frame_cnt) { + unsigned int i = 0; + int tot_num_frames = 0; + double perc_fluctuation = 0.0; + printf("Total number of processed frames: %d\n\n", frame_cnt - 1); + printf("Rate control layer stats for %d layer(s):\n\n", + cfg->ts_number_layers); + for (i = 0; i < cfg->ts_number_layers; ++i) { + const int num_dropped = + (i > 0) ? (rc->layer_input_frames[i] - rc->layer_enc_frames[i]) + : (rc->layer_input_frames[i] - rc->layer_enc_frames[i] - 1); + tot_num_frames += rc->layer_input_frames[i]; + rc->layer_encoding_bitrate[i] = 0.001 * rc->layer_framerate[i] * + rc->layer_encoding_bitrate[i] / + tot_num_frames; + rc->layer_avg_frame_size[i] = + rc->layer_avg_frame_size[i] / rc->layer_enc_frames[i]; + rc->layer_avg_rate_mismatch[i] = + 100.0 * rc->layer_avg_rate_mismatch[i] / rc->layer_enc_frames[i]; + printf("For layer#: %d \n", i); + printf("Bitrate (target vs actual): %d %f \n", rc->layer_target_bitrate[i], + rc->layer_encoding_bitrate[i]); + printf("Average frame size (target vs actual): %f %f \n", rc->layer_pfb[i], + rc->layer_avg_frame_size[i]); + printf("Average rate_mismatch: %f \n", rc->layer_avg_rate_mismatch[i]); + printf( + "Number of input frames, encoded (non-key) frames, " + "and perc dropped frames: %d %d %f \n", + rc->layer_input_frames[i], rc->layer_enc_frames[i], + 100.0 * num_dropped / rc->layer_input_frames[i]); + printf("\n"); + } + rc->avg_st_encoding_bitrate = rc->avg_st_encoding_bitrate / rc->window_count; + rc->variance_st_encoding_bitrate = + rc->variance_st_encoding_bitrate / rc->window_count - + (rc->avg_st_encoding_bitrate * rc->avg_st_encoding_bitrate); + perc_fluctuation = 100.0 * sqrt(rc->variance_st_encoding_bitrate) / + rc->avg_st_encoding_bitrate; + printf("Short-time stats, for window of %d frames: \n", rc->window_size); + printf("Average, rms-variance, and percent-fluct: %f %f %f \n", + rc->avg_st_encoding_bitrate, sqrt(rc->variance_st_encoding_bitrate), + perc_fluctuation); + if ((frame_cnt - 1) != tot_num_frames) + die("Error: Number of input frames not equal to output! \n"); +} + +#if ROI_MAP +static void set_roi_map(const char *enc_name, vpx_codec_enc_cfg_t *cfg, + vpx_roi_map_t *roi) { + unsigned int i, j; + int block_size = 0; + uint8_t is_vp8 = strncmp(enc_name, "vp8", 3) == 0 ? 1 : 0; + uint8_t is_vp9 = strncmp(enc_name, "vp9", 3) == 0 ? 1 : 0; + if (!is_vp8 && !is_vp9) { + die("unsupported codec."); + } + zero(*roi); + + block_size = is_vp9 && !is_vp8 ? 8 : 16; + + // ROI is based on the segments (4 for vp8, 8 for vp9), smallest unit for + // segment is 16x16 for vp8, 8x8 for vp9. + roi->rows = (cfg->g_h + block_size - 1) / block_size; + roi->cols = (cfg->g_w + block_size - 1) / block_size; + + // Applies delta QP on the segment blocks, varies from -63 to 63. + // Setting to negative means lower QP (better quality). + // Below we set delta_q to the extreme (-63) to show strong effect. + // VP8 uses the first 4 segments. VP9 uses all 8 segments. + zero(roi->delta_q); + roi->delta_q[1] = -63; + + // Applies delta loopfilter strength on the segment blocks, varies from -63 to + // 63. Setting to positive means stronger loopfilter. VP8 uses the first 4 + // segments. VP9 uses all 8 segments. + zero(roi->delta_lf); + + if (is_vp8) { + // Applies skip encoding threshold on the segment blocks, varies from 0 to + // UINT_MAX. Larger value means more skipping of encoding is possible. + // This skip threshold only applies on delta frames. + zero(roi->static_threshold); + } + + if (is_vp9) { + // Apply skip segment. Setting to 1 means this block will be copied from + // previous frame. + zero(roi->skip); + } + + if (is_vp9) { + // Apply ref frame segment. + // -1 : Do not apply this segment. + // 0 : Froce using intra. + // 1 : Force using last. + // 2 : Force using golden. + // 3 : Force using alfref but not used in non-rd pickmode for 0 lag. + memset(roi->ref_frame, -1, sizeof(roi->ref_frame)); + roi->ref_frame[1] = 1; + } + + // Use 2 states: 1 is center square, 0 is the rest. + roi->roi_map = + (uint8_t *)calloc(roi->rows * roi->cols, sizeof(*roi->roi_map)); + for (i = 0; i < roi->rows; ++i) { + for (j = 0; j < roi->cols; ++j) { + if (i > (roi->rows >> 2) && i < ((roi->rows * 3) >> 2) && + j > (roi->cols >> 2) && j < ((roi->cols * 3) >> 2)) { + roi->roi_map[i * roi->cols + j] = 1; + } + } + } +} + +static void set_roi_skip_map(vpx_codec_enc_cfg_t *cfg, vpx_roi_map_t *roi, + int *skip_map, int *prev_mask_map, int frame_num) { + const int block_size = 8; + unsigned int i, j; + roi->rows = (cfg->g_h + block_size - 1) / block_size; + roi->cols = (cfg->g_w + block_size - 1) / block_size; + zero(roi->skip); + zero(roi->delta_q); + zero(roi->delta_lf); + memset(roi->ref_frame, -1, sizeof(roi->ref_frame)); + roi->ref_frame[1] = 1; + // Use segment 3 for skip. + roi->skip[3] = 1; + roi->roi_map = + (uint8_t *)calloc(roi->rows * roi->cols, sizeof(*roi->roi_map)); + for (i = 0; i < roi->rows; ++i) { + for (j = 0; j < roi->cols; ++j) { + const int idx = i * roi->cols + j; + // Use segment 3 for skip. + // prev_mask_map keeps track of blocks that have been stably on segment 3 + // for the past 10 frames. Only skip when the block is on segment 3 in + // both current map and prev_mask_map. + if (skip_map[idx] == 1 && prev_mask_map[idx] == 1) roi->roi_map[idx] = 3; + // Reset it every 10 frames so it doesn't propagate for too many frames. + if (frame_num % 10 == 0) + prev_mask_map[idx] = skip_map[idx]; + else if (prev_mask_map[idx] == 1 && skip_map[idx] == 0) + prev_mask_map[idx] = 0; + } + } +} +#endif + +// Temporal scaling parameters: +// NOTE: The 3 prediction frames cannot be used interchangeably due to +// differences in the way they are handled throughout the code. The +// frames should be allocated to layers in the order LAST, GF, ARF. +// Other combinations work, but may produce slightly inferior results. +static void set_temporal_layer_pattern(int layering_mode, + vpx_codec_enc_cfg_t *cfg, + int *layer_flags, + int *flag_periodicity) { + switch (layering_mode) { + case 0: { + // 1-layer. + int ids[1] = { 0 }; + cfg->ts_periodicity = 1; + *flag_periodicity = 1; + cfg->ts_number_layers = 1; + cfg->ts_rate_decimator[0] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // Update L only. + layer_flags[0] = + VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + break; + } + case 1: { + // 2-layers, 2-frame period. + int ids[2] = { 0, 1 }; + cfg->ts_periodicity = 2; + *flag_periodicity = 2; + cfg->ts_number_layers = 2; + cfg->ts_rate_decimator[0] = 2; + cfg->ts_rate_decimator[1] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); +#if 1 + // 0=L, 1=GF, Intra-layer prediction enabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF; + layer_flags[1] = + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_REF_ARF; +#else + // 0=L, 1=GF, Intra-layer prediction disabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF; + layer_flags[1] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_REF_LAST; +#endif + break; + } + case 2: { + // 2-layers, 3-frame period. + int ids[3] = { 0, 1, 1 }; + cfg->ts_periodicity = 3; + *flag_periodicity = 3; + cfg->ts_number_layers = 2; + cfg->ts_rate_decimator[0] = 3; + cfg->ts_rate_decimator[1] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, Intra-layer prediction enabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[1] = layer_flags[2] = + VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_UPD_LAST; + break; + } + case 3: { + // 3-layers, 6-frame period. + int ids[6] = { 0, 2, 2, 1, 2, 2 }; + cfg->ts_periodicity = 6; + *flag_periodicity = 6; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 6; + cfg->ts_rate_decimator[1] = 3; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[3] = + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + layer_flags[1] = layer_flags[2] = layer_flags[4] = layer_flags[5] = + VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_LAST; + break; + } + case 4: { + // 3-layers, 4-frame period. + int ids[4] = { 0, 2, 1, 2 }; + cfg->ts_periodicity = 4; + *flag_periodicity = 4; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF, Intra-layer prediction disabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + layer_flags[1] = layer_flags[3] = + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + break; + } + case 5: { + // 3-layers, 4-frame period. + int ids[4] = { 0, 2, 1, 2 }; + cfg->ts_periodicity = 4; + *flag_periodicity = 4; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled in layer 1, disabled + // in layer 2. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[2] = + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF; + layer_flags[1] = layer_flags[3] = + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + break; + } + case 6: { + // 3-layers, 4-frame period. + int ids[4] = { 0, 2, 1, 2 }; + cfg->ts_periodicity = 4; + *flag_periodicity = 4; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[2] = + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF; + layer_flags[1] = layer_flags[3] = + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF; + break; + } + case 7: { + // NOTE: Probably of academic interest only. + // 5-layers, 16-frame period. + int ids[16] = { 0, 4, 3, 4, 2, 4, 3, 4, 1, 4, 3, 4, 2, 4, 3, 4 }; + cfg->ts_periodicity = 16; + *flag_periodicity = 16; + cfg->ts_number_layers = 5; + cfg->ts_rate_decimator[0] = 16; + cfg->ts_rate_decimator[1] = 8; + cfg->ts_rate_decimator[2] = 4; + cfg->ts_rate_decimator[3] = 2; + cfg->ts_rate_decimator[4] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + layer_flags[0] = VPX_EFLAG_FORCE_KF; + layer_flags[1] = layer_flags[3] = layer_flags[5] = layer_flags[7] = + layer_flags[9] = layer_flags[11] = layer_flags[13] = layer_flags[15] = + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[2] = layer_flags[6] = layer_flags[10] = layer_flags[14] = + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_GF; + layer_flags[4] = layer_flags[12] = + VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_UPD_ARF; + layer_flags[8] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_GF; + break; + } + case 8: { + // 2-layers, with sync point at first frame of layer 1. + int ids[2] = { 0, 1 }; + cfg->ts_periodicity = 2; + *flag_periodicity = 8; + cfg->ts_number_layers = 2; + cfg->ts_rate_decimator[0] = 2; + cfg->ts_rate_decimator[1] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF. + // ARF is used as predictor for all frames, and is only updated on + // key frame. Sync point every 8 frames. + + // Layer 0: predict from L and ARF, update L and G. + layer_flags[0] = + VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_ARF; + // Layer 1: sync point: predict from L and ARF, and update G. + layer_flags[1] = + VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF; + // Layer 0, predict from L and ARF, update L. + layer_flags[2] = + VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + // Layer 1: predict from L, G and ARF, and update G. + layer_flags[3] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_ENTROPY; + // Layer 0. + layer_flags[4] = layer_flags[2]; + // Layer 1. + layer_flags[5] = layer_flags[3]; + // Layer 0. + layer_flags[6] = layer_flags[4]; + // Layer 1. + layer_flags[7] = layer_flags[5]; + break; + } + case 9: { + // 3-layers: Sync points for layer 1 and 2 every 8 frames. + int ids[4] = { 0, 2, 1, 2 }; + cfg->ts_periodicity = 4; + *flag_periodicity = 8; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF; + layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF; + layer_flags[3] = layer_flags[5] = + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF; + layer_flags[4] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + layer_flags[6] = + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF; + layer_flags[7] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_ENTROPY; + break; + } + case 10: { + // 3-layers structure where ARF is used as predictor for all frames, + // and is only updated on key frame. + // Sync points for layer 1 and 2 every 8 frames. + + int ids[4] = { 0, 2, 1, 2 }; + cfg->ts_periodicity = 4; + *flag_periodicity = 8; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF. + // Layer 0: predict from L and ARF; update L and G. + layer_flags[0] = + VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF; + // Layer 2: sync point: predict from L and ARF; update none. + layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_ENTROPY; + // Layer 1: sync point: predict from L and ARF; update G. + layer_flags[2] = + VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + // Layer 2: predict from L, G, ARF; update none. + layer_flags[3] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY; + // Layer 0: predict from L and ARF; update L. + layer_flags[4] = + VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF; + // Layer 2: predict from L, G, ARF; update none. + layer_flags[5] = layer_flags[3]; + // Layer 1: predict from L, G, ARF; update G. + layer_flags[6] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + // Layer 2: predict from L, G, ARF; update none. + layer_flags[7] = layer_flags[3]; + break; + } + case 11: { + // 3-layers structure with one reference frame. + // This works same as temporal_layering_mode 3. + // This was added to compare with vp9_spatial_svc_encoder. + + // 3-layers, 4-frame period. + int ids[4] = { 0, 2, 1, 2 }; + cfg->ts_periodicity = 4; + *flag_periodicity = 4; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF, Intra-layer prediction disabled. + layer_flags[0] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF; + layer_flags[3] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF; + break; + } + case 12: + default: { + // 3-layers structure as in case 10, but no sync/refresh points for + // layer 1 and 2. + int ids[4] = { 0, 2, 1, 2 }; + cfg->ts_periodicity = 4; + *flag_periodicity = 8; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF. + // Layer 0: predict from L and ARF; update L. + layer_flags[0] = + VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF; + layer_flags[4] = layer_flags[0]; + // Layer 1: predict from L, G, ARF; update G. + layer_flags[2] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + layer_flags[6] = layer_flags[2]; + // Layer 2: predict from L, G, ARF; update none. + layer_flags[1] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY; + layer_flags[3] = layer_flags[1]; + layer_flags[5] = layer_flags[1]; + layer_flags[7] = layer_flags[1]; + break; + } + } +} + +#if ROI_MAP +static void read_mask(FILE *mask_file, int *seg_map) { + int mask_rows, mask_cols, i, j; + int *map_start = seg_map; + fscanf(mask_file, "%d %d\n", &mask_cols, &mask_rows); + for (i = 0; i < mask_rows; i++) { + for (j = 0; j < mask_cols; j++) { + fscanf(mask_file, "%d ", &seg_map[j]); + // reverse the bit + seg_map[j] = 1 - seg_map[j]; + } + seg_map += mask_cols; + } + seg_map = map_start; +} +#endif + +int main(int argc, char **argv) { + VpxVideoWriter *outfile[VPX_TS_MAX_LAYERS] = { NULL }; + vpx_codec_ctx_t codec; + vpx_codec_enc_cfg_t cfg; + int frame_cnt = 0; + vpx_image_t raw; + vpx_codec_err_t res; + unsigned int width; + unsigned int height; + uint32_t error_resilient = 0; + int speed; + int frame_avail; + int got_data; + int flags = 0; + unsigned int i; + int pts = 0; // PTS starts at 0. + int frame_duration = 1; // 1 timebase tick per frame. + int layering_mode = 0; + int layer_flags[VPX_TS_MAX_PERIODICITY] = { 0 }; + int flag_periodicity = 1; +#if ROI_MAP + vpx_roi_map_t roi; +#endif + vpx_svc_layer_id_t layer_id; + const VpxInterface *encoder = NULL; + struct VpxInputContext input_ctx; + struct RateControlMetrics rc; + int64_t cx_time = 0; + const int min_args_base = 13; +#if CONFIG_VP9_HIGHBITDEPTH + vpx_bit_depth_t bit_depth = VPX_BITS_8; + int input_bit_depth = 8; + const int min_args = min_args_base + 1; +#else + const int min_args = min_args_base; +#endif // CONFIG_VP9_HIGHBITDEPTH + double sum_bitrate = 0.0; + double sum_bitrate2 = 0.0; + double framerate = 30.0; +#if ROI_MAP + FILE *mask_file = NULL; + int block_size = 8; + int mask_rows = 0; + int mask_cols = 0; + int *mask_map; + int *prev_mask_map; +#endif + zero(rc.layer_target_bitrate); + memset(&layer_id, 0, sizeof(vpx_svc_layer_id_t)); + memset(&input_ctx, 0, sizeof(input_ctx)); + /* Setup default input stream settings */ + input_ctx.framerate.numerator = 30; + input_ctx.framerate.denominator = 1; + input_ctx.only_i420 = 1; + input_ctx.bit_depth = 0; + + exec_name = argv[0]; + // Check usage and arguments. + if (argc < min_args) { +#if CONFIG_VP9_HIGHBITDEPTH + die("Usage: %s <infile> <outfile> <codec_type(vp8/vp9)> <width> <height> " + "<rate_num> <rate_den> <speed> <frame_drop_threshold> " + "<error_resilient> <threads> <mode> " + "<Rate_0> ... <Rate_nlayers-1> <bit-depth> \n", + argv[0]); +#else + die("Usage: %s <infile> <outfile> <codec_type(vp8/vp9)> <width> <height> " + "<rate_num> <rate_den> <speed> <frame_drop_threshold> " + "<error_resilient> <threads> <mode> " + "<Rate_0> ... <Rate_nlayers-1> \n", + argv[0]); +#endif // CONFIG_VP9_HIGHBITDEPTH + } + + encoder = get_vpx_encoder_by_name(argv[3]); + if (!encoder) die("Unsupported codec."); + + printf("Using %s\n", vpx_codec_iface_name(encoder->codec_interface())); + + width = (unsigned int)strtoul(argv[4], NULL, 0); + height = (unsigned int)strtoul(argv[5], NULL, 0); + if (width < 16 || width % 2 || height < 16 || height % 2) { + die("Invalid resolution: %d x %d", width, height); + } + + layering_mode = (int)strtol(argv[12], NULL, 0); + if (layering_mode < 0 || layering_mode > 13) { + die("Invalid layering mode (0..12) %s", argv[12]); + } + +#if ROI_MAP + if (argc != min_args + mode_to_num_layers[layering_mode] + 1) { + die("Invalid number of arguments"); + } +#else + if (argc != min_args + mode_to_num_layers[layering_mode]) { + die("Invalid number of arguments"); + } +#endif + + input_ctx.filename = argv[1]; + open_input_file(&input_ctx); + +#if CONFIG_VP9_HIGHBITDEPTH + switch (strtol(argv[argc - 1], NULL, 0)) { + case 8: + bit_depth = VPX_BITS_8; + input_bit_depth = 8; + break; + case 10: + bit_depth = VPX_BITS_10; + input_bit_depth = 10; + break; + case 12: + bit_depth = VPX_BITS_12; + input_bit_depth = 12; + break; + default: die("Invalid bit depth (8, 10, 12) %s", argv[argc - 1]); + } + + // Y4M reader has its own allocation. + if (input_ctx.file_type != FILE_TYPE_Y4M) { + if (!vpx_img_alloc( + &raw, + bit_depth == VPX_BITS_8 ? VPX_IMG_FMT_I420 : VPX_IMG_FMT_I42016, + width, height, 32)) { + die("Failed to allocate image (%dx%d)", width, height); + } + } +#else + // Y4M reader has its own allocation. + if (input_ctx.file_type != FILE_TYPE_Y4M) { + if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, width, height, 32)) { + die("Failed to allocate image (%dx%d)", width, height); + } + } +#endif // CONFIG_VP9_HIGHBITDEPTH + + // Populate encoder configuration. + res = vpx_codec_enc_config_default(encoder->codec_interface(), &cfg, 0); + if (res) { + printf("Failed to get config: %s\n", vpx_codec_err_to_string(res)); + return EXIT_FAILURE; + } + + // Update the default configuration with our settings. + cfg.g_w = width; + cfg.g_h = height; + +#if CONFIG_VP9_HIGHBITDEPTH + if (bit_depth != VPX_BITS_8) { + cfg.g_bit_depth = bit_depth; + cfg.g_input_bit_depth = input_bit_depth; + cfg.g_profile = 2; + } +#endif // CONFIG_VP9_HIGHBITDEPTH + + // Timebase format e.g. 30fps: numerator=1, demoninator = 30. + cfg.g_timebase.num = (int)strtol(argv[6], NULL, 0); + cfg.g_timebase.den = (int)strtol(argv[7], NULL, 0); + + speed = (int)strtol(argv[8], NULL, 0); + if (speed < 0) { + die("Invalid speed setting: must be positive"); + } + if (strncmp(encoder->name, "vp9", 3) == 0 && speed > 9) { + warn("Mapping speed %d to speed 9.\n", speed); + } + + for (i = min_args_base; + (int)i < min_args_base + mode_to_num_layers[layering_mode]; ++i) { + rc.layer_target_bitrate[i - 13] = (int)strtol(argv[i], NULL, 0); + if (strncmp(encoder->name, "vp8", 3) == 0) + cfg.ts_target_bitrate[i - 13] = rc.layer_target_bitrate[i - 13]; + else if (strncmp(encoder->name, "vp9", 3) == 0) + cfg.layer_target_bitrate[i - 13] = rc.layer_target_bitrate[i - 13]; + } + + // Real time parameters. + cfg.rc_dropframe_thresh = (unsigned int)strtoul(argv[9], NULL, 0); + cfg.rc_end_usage = VPX_CBR; + cfg.rc_min_quantizer = 2; + cfg.rc_max_quantizer = 56; + if (strncmp(encoder->name, "vp9", 3) == 0) cfg.rc_max_quantizer = 52; + cfg.rc_undershoot_pct = 50; + cfg.rc_overshoot_pct = 50; + cfg.rc_buf_initial_sz = 600; + cfg.rc_buf_optimal_sz = 600; + cfg.rc_buf_sz = 1000; + + // Disable dynamic resizing by default. + cfg.rc_resize_allowed = 0; + + // Use 1 thread as default. + cfg.g_threads = (unsigned int)strtoul(argv[11], NULL, 0); + + error_resilient = (uint32_t)strtoul(argv[10], NULL, 0); + if (error_resilient != 0 && error_resilient != 1) { + die("Invalid value for error resilient (0, 1): %d.", error_resilient); + } + // Enable error resilient mode. + cfg.g_error_resilient = error_resilient; + cfg.g_lag_in_frames = 0; + cfg.kf_mode = VPX_KF_AUTO; + + // Disable automatic keyframe placement. + cfg.kf_min_dist = cfg.kf_max_dist = 3000; + + cfg.temporal_layering_mode = VP9E_TEMPORAL_LAYERING_MODE_BYPASS; + + set_temporal_layer_pattern(layering_mode, &cfg, layer_flags, + &flag_periodicity); + + set_rate_control_metrics(&rc, &cfg); + + if (input_ctx.file_type == FILE_TYPE_Y4M) { + if (input_ctx.width != cfg.g_w || input_ctx.height != cfg.g_h) { + die("Incorrect width or height: %d x %d", cfg.g_w, cfg.g_h); + } + if (input_ctx.framerate.numerator != cfg.g_timebase.den || + input_ctx.framerate.denominator != cfg.g_timebase.num) { + die("Incorrect framerate: numerator %d denominator %d", + cfg.g_timebase.num, cfg.g_timebase.den); + } + } + + framerate = cfg.g_timebase.den / cfg.g_timebase.num; + // Open an output file for each stream. + for (i = 0; i < cfg.ts_number_layers; ++i) { + char file_name[PATH_MAX]; + VpxVideoInfo info; + info.codec_fourcc = encoder->fourcc; + info.frame_width = cfg.g_w; + info.frame_height = cfg.g_h; + info.time_base.numerator = cfg.g_timebase.num; + info.time_base.denominator = cfg.g_timebase.den; + + snprintf(file_name, sizeof(file_name), "%s_%d.ivf", argv[2], i); + outfile[i] = vpx_video_writer_open(file_name, kContainerIVF, &info); + if (!outfile[i]) die("Failed to open %s for writing", file_name); + + assert(outfile[i] != NULL); + } + // No spatial layers in this encoder. + cfg.ss_number_layers = 1; + +// Initialize codec. +#if CONFIG_VP9_HIGHBITDEPTH + if (vpx_codec_enc_init( + &codec, encoder->codec_interface(), &cfg, + bit_depth == VPX_BITS_8 ? 0 : VPX_CODEC_USE_HIGHBITDEPTH)) +#else + if (vpx_codec_enc_init(&codec, encoder->codec_interface(), &cfg, 0)) +#endif // CONFIG_VP9_HIGHBITDEPTH + die("Failed to initialize encoder"); + +#if ROI_MAP + mask_rows = (cfg.g_h + block_size - 1) / block_size; + mask_cols = (cfg.g_w + block_size - 1) / block_size; + mask_map = (int *)calloc(mask_rows * mask_cols, sizeof(*mask_map)); + prev_mask_map = (int *)calloc(mask_rows * mask_cols, sizeof(*mask_map)); +#endif + + if (strncmp(encoder->name, "vp8", 3) == 0) { + vpx_codec_control(&codec, VP8E_SET_CPUUSED, -speed); + vpx_codec_control(&codec, VP8E_SET_NOISE_SENSITIVITY, kVp8DenoiserOff); + vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 1); + vpx_codec_control(&codec, VP8E_SET_GF_CBR_BOOST_PCT, 0); +#if ROI_MAP + set_roi_map(encoder->name, &cfg, &roi); + if (vpx_codec_control(&codec, VP8E_SET_ROI_MAP, &roi)) + die_codec(&codec, "Failed to set ROI map"); +#endif + } else if (strncmp(encoder->name, "vp9", 3) == 0) { + vpx_svc_extra_cfg_t svc_params; + memset(&svc_params, 0, sizeof(svc_params)); + vpx_codec_control(&codec, VP9E_SET_POSTENCODE_DROP, 0); + vpx_codec_control(&codec, VP9E_SET_DISABLE_OVERSHOOT_MAXQ_CBR, 0); + vpx_codec_control(&codec, VP8E_SET_CPUUSED, speed); + vpx_codec_control(&codec, VP9E_SET_AQ_MODE, 3); + vpx_codec_control(&codec, VP9E_SET_GF_CBR_BOOST_PCT, 0); + vpx_codec_control(&codec, VP9E_SET_FRAME_PARALLEL_DECODING, 0); + vpx_codec_control(&codec, VP9E_SET_FRAME_PERIODIC_BOOST, 0); + vpx_codec_control(&codec, VP9E_SET_NOISE_SENSITIVITY, kVp9DenoiserOff); + vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 1); + vpx_codec_control(&codec, VP9E_SET_TUNE_CONTENT, 0); + vpx_codec_control(&codec, VP9E_SET_TILE_COLUMNS, get_msb(cfg.g_threads)); + vpx_codec_control(&codec, VP9E_SET_DISABLE_LOOPFILTER, 0); + + if (cfg.g_threads > 1) + vpx_codec_control(&codec, VP9E_SET_ROW_MT, 1); + else + vpx_codec_control(&codec, VP9E_SET_ROW_MT, 0); + if (vpx_codec_control(&codec, VP9E_SET_SVC, layering_mode > 0 ? 1 : 0)) + die_codec(&codec, "Failed to set SVC"); + for (i = 0; i < cfg.ts_number_layers; ++i) { + svc_params.max_quantizers[i] = cfg.rc_max_quantizer; + svc_params.min_quantizers[i] = cfg.rc_min_quantizer; + } + svc_params.scaling_factor_num[0] = cfg.g_h; + svc_params.scaling_factor_den[0] = cfg.g_h; + vpx_codec_control(&codec, VP9E_SET_SVC_PARAMETERS, &svc_params); + } + if (strncmp(encoder->name, "vp8", 3) == 0) { + vpx_codec_control(&codec, VP8E_SET_SCREEN_CONTENT_MODE, 0); + } + vpx_codec_control(&codec, VP8E_SET_TOKEN_PARTITIONS, 1); + // This controls the maximum target size of the key frame. + // For generating smaller key frames, use a smaller max_intra_size_pct + // value, like 100 or 200. + { + const int max_intra_size_pct = 1000; + vpx_codec_control(&codec, VP8E_SET_MAX_INTRA_BITRATE_PCT, + max_intra_size_pct); + } + + frame_avail = 1; + while (frame_avail || got_data) { + struct vpx_usec_timer timer; + vpx_codec_iter_t iter = NULL; + const vpx_codec_cx_pkt_t *pkt; +#if ROI_MAP + char mask_file_name[255]; +#endif + // Update the temporal layer_id. No spatial layers in this test. + layer_id.spatial_layer_id = 0; + layer_id.temporal_layer_id = + cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity]; + layer_id.temporal_layer_id_per_spatial[0] = layer_id.temporal_layer_id; + if (strncmp(encoder->name, "vp9", 3) == 0) { + vpx_codec_control(&codec, VP9E_SET_SVC_LAYER_ID, &layer_id); + } else if (strncmp(encoder->name, "vp8", 3) == 0) { + vpx_codec_control(&codec, VP8E_SET_TEMPORAL_LAYER_ID, + layer_id.temporal_layer_id); + } + flags = layer_flags[frame_cnt % flag_periodicity]; + if (layering_mode == 0) flags = 0; +#if ROI_MAP + snprintf(mask_file_name, sizeof(mask_file_name), "%s%05d.txt", + argv[argc - 1], frame_cnt); + mask_file = fopen(mask_file_name, "r"); + if (mask_file != NULL) { + read_mask(mask_file, mask_map); + fclose(mask_file); + // set_roi_map(encoder->name, &cfg, &roi); + set_roi_skip_map(&cfg, &roi, mask_map, prev_mask_map, frame_cnt); + if (vpx_codec_control(&codec, VP9E_SET_ROI_MAP, &roi)) + die_codec(&codec, "Failed to set ROI map"); + } +#endif + frame_avail = read_frame(&input_ctx, &raw); + if (frame_avail) ++rc.layer_input_frames[layer_id.temporal_layer_id]; + vpx_usec_timer_start(&timer); + if (vpx_codec_encode(&codec, frame_avail ? &raw : NULL, pts, 1, flags, + VPX_DL_REALTIME)) { + die_codec(&codec, "Failed to encode frame"); + } + vpx_usec_timer_mark(&timer); + cx_time += vpx_usec_timer_elapsed(&timer); + // Reset KF flag. + if (layering_mode != 7) { + layer_flags[0] &= ~VPX_EFLAG_FORCE_KF; + } + got_data = 0; + while ((pkt = vpx_codec_get_cx_data(&codec, &iter))) { + got_data = 1; + switch (pkt->kind) { + case VPX_CODEC_CX_FRAME_PKT: + for (i = cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity]; + i < cfg.ts_number_layers; ++i) { + vpx_video_writer_write_frame(outfile[i], pkt->data.frame.buf, + pkt->data.frame.sz, pts); + ++rc.layer_tot_enc_frames[i]; + rc.layer_encoding_bitrate[i] += 8.0 * pkt->data.frame.sz; + // Keep count of rate control stats per layer (for non-key frames). + if (i == cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity] && + !(pkt->data.frame.flags & VPX_FRAME_IS_KEY)) { + rc.layer_avg_frame_size[i] += 8.0 * pkt->data.frame.sz; + rc.layer_avg_rate_mismatch[i] += + fabs(8.0 * pkt->data.frame.sz - rc.layer_pfb[i]) / + rc.layer_pfb[i]; + ++rc.layer_enc_frames[i]; + } + } + // Update for short-time encoding bitrate states, for moving window + // of size rc->window, shifted by rc->window / 2. + // Ignore first window segment, due to key frame. + if (rc.window_size == 0) rc.window_size = 15; + if (frame_cnt > rc.window_size) { + sum_bitrate += 0.001 * 8.0 * pkt->data.frame.sz * framerate; + if (frame_cnt % rc.window_size == 0) { + rc.window_count += 1; + rc.avg_st_encoding_bitrate += sum_bitrate / rc.window_size; + rc.variance_st_encoding_bitrate += + (sum_bitrate / rc.window_size) * + (sum_bitrate / rc.window_size); + sum_bitrate = 0.0; + } + } + // Second shifted window. + if (frame_cnt > rc.window_size + rc.window_size / 2) { + sum_bitrate2 += 0.001 * 8.0 * pkt->data.frame.sz * framerate; + if (frame_cnt > 2 * rc.window_size && + frame_cnt % rc.window_size == 0) { + rc.window_count += 1; + rc.avg_st_encoding_bitrate += sum_bitrate2 / rc.window_size; + rc.variance_st_encoding_bitrate += + (sum_bitrate2 / rc.window_size) * + (sum_bitrate2 / rc.window_size); + sum_bitrate2 = 0.0; + } + } + break; + default: break; + } + } + ++frame_cnt; + pts += frame_duration; + } +#if ROI_MAP + free(mask_map); + free(prev_mask_map); +#endif + close_input_file(&input_ctx); + printout_rate_control_summary(&rc, &cfg, frame_cnt); + printf("\n"); + printf("Frame cnt and encoding time/FPS stats for encoding: %d %f %f \n", + frame_cnt, 1000 * (float)cx_time / (double)(frame_cnt * 1000000), + 1000000 * (double)frame_cnt / (double)cx_time); + + if (vpx_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec"); + + // Try to rewrite the output file headers with the actual frame count. + for (i = 0; i < cfg.ts_number_layers; ++i) vpx_video_writer_close(outfile[i]); + + if (input_ctx.file_type != FILE_TYPE_Y4M) { + vpx_img_free(&raw); + } + +#if ROI_MAP + free(roi.roi_map); +#endif + return EXIT_SUCCESS; +} |