| /* |
| * Copyright (c) 2010 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 multi-resolution encoding in VP8. |
| * High-resolution input video is down-sampled to lower-resolutions. The |
| * encoder then encodes the video and outputs multiple bitstreams with |
| * different resolutions. |
| * |
| * This test also allows for settings temporal layers for each spatial layer. |
| * Different number of temporal layers per spatial stream may be used. |
| * Currently up to 3 temporal layers per spatial stream (encoder) are supported |
| * in this test. |
| */ |
| |
| #include "./vpx_config.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include <string.h> |
| #include <math.h> |
| #include <assert.h> |
| #include <sys/time.h> |
| #include "vpx_ports/vpx_timer.h" |
| #include "vpx/vpx_encoder.h" |
| #include "vpx/vp8cx.h" |
| #include "vpx_ports/mem_ops.h" |
| #include "../tools_common.h" |
| #define interface (vpx_codec_vp8_cx()) |
| #define fourcc 0x30385056 |
| |
| void usage_exit(void) { |
| exit(EXIT_FAILURE); |
| } |
| |
| /* |
| * The input video frame is downsampled several times to generate a multi-level |
| * hierarchical structure. NUM_ENCODERS is defined as the number of encoding |
| * levels required. For example, if the size of input video is 1280x720, |
| * NUM_ENCODERS is 3, and down-sampling factor is 2, the encoder outputs 3 |
| * bitstreams with resolution of 1280x720(level 0), 640x360(level 1), and |
| * 320x180(level 2) respectively. |
| */ |
| |
| /* Number of encoders (spatial resolutions) used in this test. */ |
| #define NUM_ENCODERS 3 |
| |
| /* Maximum number of temporal layers allowed for this test. */ |
| #define MAX_NUM_TEMPORAL_LAYERS 3 |
| |
| /* This example uses the scaler function in libyuv. */ |
| #include "third_party/libyuv/include/libyuv/basic_types.h" |
| #include "third_party/libyuv/include/libyuv/scale.h" |
| #include "third_party/libyuv/include/libyuv/cpu_id.h" |
| |
| int (*read_frame_p)(FILE *f, vpx_image_t *img); |
| |
| static int read_frame(FILE *f, vpx_image_t *img) { |
| size_t nbytes, to_read; |
| int res = 1; |
| |
| to_read = img->w*img->h*3/2; |
| nbytes = fread(img->planes[0], 1, to_read, f); |
| if(nbytes != to_read) { |
| res = 0; |
| if(nbytes > 0) |
| printf("Warning: Read partial frame. Check your width & height!\n"); |
| } |
| return res; |
| } |
| |
| static int read_frame_by_row(FILE *f, vpx_image_t *img) { |
| size_t nbytes, to_read; |
| int res = 1; |
| int plane; |
| |
| for (plane = 0; plane < 3; plane++) |
| { |
| unsigned char *ptr; |
| int w = (plane ? (1 + img->d_w) / 2 : img->d_w); |
| int h = (plane ? (1 + img->d_h) / 2 : img->d_h); |
| int r; |
| |
| /* Determine the correct plane based on the image format. The for-loop |
| * always counts in Y,U,V order, but this may not match the order of |
| * the data on disk. |
| */ |
| switch (plane) |
| { |
| case 1: |
| ptr = img->planes[img->fmt==VPX_IMG_FMT_YV12? VPX_PLANE_V : VPX_PLANE_U]; |
| break; |
| case 2: |
| ptr = img->planes[img->fmt==VPX_IMG_FMT_YV12?VPX_PLANE_U : VPX_PLANE_V]; |
| break; |
| default: |
| ptr = img->planes[plane]; |
| } |
| |
| for (r = 0; r < h; r++) |
| { |
| to_read = w; |
| |
| nbytes = fread(ptr, 1, to_read, f); |
| if(nbytes != to_read) { |
| res = 0; |
| if(nbytes > 0) |
| printf("Warning: Read partial frame. Check your width & height!\n"); |
| break; |
| } |
| |
| ptr += img->stride[plane]; |
| } |
| if (!res) |
| break; |
| } |
| |
| return res; |
| } |
| |
| static void write_ivf_file_header(FILE *outfile, |
| const vpx_codec_enc_cfg_t *cfg, |
| int frame_cnt) { |
| char header[32]; |
| |
| if(cfg->g_pass != VPX_RC_ONE_PASS && cfg->g_pass != VPX_RC_LAST_PASS) |
| return; |
| header[0] = 'D'; |
| header[1] = 'K'; |
| header[2] = 'I'; |
| header[3] = 'F'; |
| mem_put_le16(header+4, 0); /* version */ |
| mem_put_le16(header+6, 32); /* headersize */ |
| mem_put_le32(header+8, fourcc); /* headersize */ |
| mem_put_le16(header+12, cfg->g_w); /* width */ |
| mem_put_le16(header+14, cfg->g_h); /* height */ |
| mem_put_le32(header+16, cfg->g_timebase.den); /* rate */ |
| mem_put_le32(header+20, cfg->g_timebase.num); /* scale */ |
| mem_put_le32(header+24, frame_cnt); /* length */ |
| mem_put_le32(header+28, 0); /* unused */ |
| |
| (void) fwrite(header, 1, 32, outfile); |
| } |
| |
| static void write_ivf_frame_header(FILE *outfile, |
| const vpx_codec_cx_pkt_t *pkt) |
| { |
| char header[12]; |
| vpx_codec_pts_t pts; |
| |
| if(pkt->kind != VPX_CODEC_CX_FRAME_PKT) |
| return; |
| |
| pts = pkt->data.frame.pts; |
| mem_put_le32(header, pkt->data.frame.sz); |
| mem_put_le32(header+4, pts&0xFFFFFFFF); |
| mem_put_le32(header+8, pts >> 32); |
| |
| (void) fwrite(header, 1, 12, outfile); |
| } |
| |
| /* Temporal scaling parameters */ |
| /* This sets all the temporal layer parameters given |num_temporal_layers|, |
| * including the target bit allocation across temporal layers. Bit allocation |
| * parameters will be passed in as user parameters in another version. |
| */ |
| static void set_temporal_layer_pattern(int num_temporal_layers, |
| vpx_codec_enc_cfg_t *cfg, |
| int bitrate, |
| int *layer_flags) |
| { |
| assert(num_temporal_layers <= MAX_NUM_TEMPORAL_LAYERS); |
| switch (num_temporal_layers) |
| { |
| case 1: |
| { |
| /* 1-layer */ |
| cfg->ts_number_layers = 1; |
| cfg->ts_periodicity = 1; |
| cfg->ts_rate_decimator[0] = 1; |
| cfg->ts_layer_id[0] = 0; |
| cfg->ts_target_bitrate[0] = bitrate; |
| |
| // Update L only. |
| layer_flags[0] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; |
| break; |
| } |
| |
| case 2: |
| { |
| /* 2-layers, with sync point at first frame of layer 1. */ |
| cfg->ts_number_layers = 2; |
| cfg->ts_periodicity = 2; |
| cfg->ts_rate_decimator[0] = 2; |
| cfg->ts_rate_decimator[1] = 1; |
| cfg->ts_layer_id[0] = 0; |
| cfg->ts_layer_id[1] = 1; |
| // Use 60/40 bit allocation as example. |
| cfg->ts_target_bitrate[0] = 0.6f * bitrate; |
| cfg->ts_target_bitrate[1] = bitrate; |
| |
| /* 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] = 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 3: |
| default: |
| { |
| // 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. |
| cfg->ts_number_layers = 3; |
| cfg->ts_periodicity = 4; |
| cfg->ts_rate_decimator[0] = 4; |
| cfg->ts_rate_decimator[1] = 2; |
| cfg->ts_rate_decimator[2] = 1; |
| cfg->ts_layer_id[0] = 0; |
| cfg->ts_layer_id[1] = 2; |
| cfg->ts_layer_id[2] = 1; |
| cfg->ts_layer_id[3] = 2; |
| // Use 40/20/40 bit allocation as example. |
| cfg->ts_target_bitrate[0] = 0.4f * bitrate; |
| cfg->ts_target_bitrate[1] = 0.6f * bitrate; |
| cfg->ts_target_bitrate[2] = bitrate; |
| |
| /* 0=L, 1=GF, 2=ARF */ |
| |
| // Layer 0: predict from L and ARF; update L and G. |
| layer_flags[0] = 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; |
| } |
| } |
| } |
| |
| /* The periodicity of the pattern given the number of temporal layers. */ |
| static int periodicity_to_num_layers[MAX_NUM_TEMPORAL_LAYERS] = {1, 8, 8}; |
| |
| int main(int argc, char **argv) |
| { |
| FILE *infile, *outfile[NUM_ENCODERS]; |
| FILE *downsampled_input[NUM_ENCODERS - 1]; |
| char filename[50]; |
| vpx_codec_ctx_t codec[NUM_ENCODERS]; |
| vpx_codec_enc_cfg_t cfg[NUM_ENCODERS]; |
| int frame_cnt = 0; |
| vpx_image_t raw[NUM_ENCODERS]; |
| vpx_codec_err_t res[NUM_ENCODERS]; |
| |
| int i; |
| long width; |
| long height; |
| int length_frame; |
| int frame_avail; |
| int got_data; |
| int flags = 0; |
| int layer_id = 0; |
| |
| int layer_flags[VPX_TS_MAX_PERIODICITY * NUM_ENCODERS] |
| = {0}; |
| int flag_periodicity; |
| |
| /*Currently, only realtime mode is supported in multi-resolution encoding.*/ |
| int arg_deadline = VPX_DL_REALTIME; |
| |
| /* Set show_psnr to 1/0 to show/not show PSNR. Choose show_psnr=0 if you |
| don't need to know PSNR, which will skip PSNR calculation and save |
| encoding time. */ |
| int show_psnr = 0; |
| int key_frame_insert = 0; |
| uint64_t psnr_sse_total[NUM_ENCODERS] = {0}; |
| uint64_t psnr_samples_total[NUM_ENCODERS] = {0}; |
| double psnr_totals[NUM_ENCODERS][4] = {{0,0}}; |
| int psnr_count[NUM_ENCODERS] = {0}; |
| |
| int64_t cx_time = 0; |
| |
| /* Set the required target bitrates for each resolution level. |
| * If target bitrate for highest-resolution level is set to 0, |
| * (i.e. target_bitrate[0]=0), we skip encoding at that level. |
| */ |
| unsigned int target_bitrate[NUM_ENCODERS]={1000, 500, 100}; |
| |
| /* Enter the frame rate of the input video */ |
| int framerate = 30; |
| |
| /* Set down-sampling factor for each resolution level. |
| dsf[0] controls down sampling from level 0 to level 1; |
| dsf[1] controls down sampling from level 1 to level 2; |
| dsf[2] is not used. */ |
| vpx_rational_t dsf[NUM_ENCODERS] = {{2, 1}, {2, 1}, {1, 1}}; |
| |
| /* Set the number of temporal layers for each encoder/resolution level, |
| * starting from highest resoln down to lowest resoln. */ |
| unsigned int num_temporal_layers[NUM_ENCODERS] = {3, 3, 3}; |
| |
| if(argc!= (7 + 3 * NUM_ENCODERS)) |
| die("Usage: %s <width> <height> <frame_rate> <infile> <outfile(s)> " |
| "<rate_encoder(s)> <temporal_layer(s)> <key_frame_insert> <output psnr?> \n", |
| argv[0]); |
| |
| printf("Using %s\n",vpx_codec_iface_name(interface)); |
| |
| width = strtol(argv[1], NULL, 0); |
| height = strtol(argv[2], NULL, 0); |
| framerate = strtol(argv[3], NULL, 0); |
| |
| if(width < 16 || width%2 || height <16 || height%2) |
| die("Invalid resolution: %ldx%ld", width, height); |
| |
| /* Open input video file for encoding */ |
| if(!(infile = fopen(argv[4], "rb"))) |
| die("Failed to open %s for reading", argv[4]); |
| |
| /* Open output file for each encoder to output bitstreams */ |
| for (i=0; i< NUM_ENCODERS; i++) |
| { |
| if(!target_bitrate[i]) |
| { |
| outfile[i] = NULL; |
| continue; |
| } |
| |
| if(!(outfile[i] = fopen(argv[i+5], "wb"))) |
| die("Failed to open %s for writing", argv[i+4]); |
| } |
| |
| // Bitrates per spatial layer: overwrite default rates above. |
| for (i=0; i< NUM_ENCODERS; i++) |
| { |
| target_bitrate[i] = strtol(argv[NUM_ENCODERS + 5 + i], NULL, 0); |
| } |
| |
| // Temporal layers per spatial layers: overwrite default settings above. |
| for (i=0; i< NUM_ENCODERS; i++) |
| { |
| num_temporal_layers[i] = strtol(argv[2 * NUM_ENCODERS + 5 + i], NULL, 0); |
| if (num_temporal_layers[i] < 1 || num_temporal_layers[i] > 3) |
| die("Invalid temporal layers: %d, Must be 1, 2, or 3. \n", |
| num_temporal_layers); |
| } |
| |
| /* Open file to write out each spatially downsampled input stream. */ |
| for (i=0; i< NUM_ENCODERS - 1; i++) |
| { |
| // Highest resoln is encoder 0. |
| if (sprintf(filename,"ds%d.yuv",NUM_ENCODERS - i) < 0) |
| { |
| return EXIT_FAILURE; |
| } |
| downsampled_input[i] = fopen(filename,"wb"); |
| } |
| |
| key_frame_insert = strtol(argv[3 * NUM_ENCODERS + 5], NULL, 0); |
| |
| show_psnr = strtol(argv[3 * NUM_ENCODERS + 6], NULL, 0); |
| |
| |
| /* Populate default encoder configuration */ |
| for (i=0; i< NUM_ENCODERS; i++) |
| { |
| res[i] = vpx_codec_enc_config_default(interface, &cfg[i], 0); |
| if(res[i]) { |
| printf("Failed to get config: %s\n", vpx_codec_err_to_string(res[i])); |
| return EXIT_FAILURE; |
| } |
| } |
| |
| /* |
| * Update the default configuration according to needs of the application. |
| */ |
| /* Highest-resolution encoder settings */ |
| cfg[0].g_w = width; |
| cfg[0].g_h = height; |
| cfg[0].rc_dropframe_thresh = 0; |
| cfg[0].rc_end_usage = VPX_CBR; |
| cfg[0].rc_resize_allowed = 0; |
| cfg[0].rc_min_quantizer = 2; |
| cfg[0].rc_max_quantizer = 56; |
| cfg[0].rc_undershoot_pct = 100; |
| cfg[0].rc_overshoot_pct = 15; |
| cfg[0].rc_buf_initial_sz = 500; |
| cfg[0].rc_buf_optimal_sz = 600; |
| cfg[0].rc_buf_sz = 1000; |
| cfg[0].g_error_resilient = 1; /* Enable error resilient mode */ |
| cfg[0].g_lag_in_frames = 0; |
| |
| /* Disable automatic keyframe placement */ |
| /* Note: These 3 settings are copied to all levels. But, except the lowest |
| * resolution level, all other levels are set to VPX_KF_DISABLED internally. |
| */ |
| cfg[0].kf_mode = VPX_KF_AUTO; |
| cfg[0].kf_min_dist = 3000; |
| cfg[0].kf_max_dist = 3000; |
| |
| cfg[0].rc_target_bitrate = target_bitrate[0]; /* Set target bitrate */ |
| cfg[0].g_timebase.num = 1; /* Set fps */ |
| cfg[0].g_timebase.den = framerate; |
| |
| /* Other-resolution encoder settings */ |
| for (i=1; i< NUM_ENCODERS; i++) |
| { |
| memcpy(&cfg[i], &cfg[0], sizeof(vpx_codec_enc_cfg_t)); |
| |
| cfg[i].rc_target_bitrate = target_bitrate[i]; |
| |
| /* Note: Width & height of other-resolution encoders are calculated |
| * from the highest-resolution encoder's size and the corresponding |
| * down_sampling_factor. |
| */ |
| { |
| unsigned int iw = cfg[i-1].g_w*dsf[i-1].den + dsf[i-1].num - 1; |
| unsigned int ih = cfg[i-1].g_h*dsf[i-1].den + dsf[i-1].num - 1; |
| cfg[i].g_w = iw/dsf[i-1].num; |
| cfg[i].g_h = ih/dsf[i-1].num; |
| } |
| |
| /* Make width & height to be multiplier of 2. */ |
| // Should support odd size ??? |
| if((cfg[i].g_w)%2)cfg[i].g_w++; |
| if((cfg[i].g_h)%2)cfg[i].g_h++; |
| } |
| |
| |
| // Set the number of threads per encode/spatial layer. |
| // (1, 1, 1) means no encoder threading. |
| cfg[0].g_threads = 2; |
| cfg[1].g_threads = 1; |
| cfg[2].g_threads = 1; |
| |
| /* Allocate image for each encoder */ |
| for (i=0; i< NUM_ENCODERS; i++) |
| if(!vpx_img_alloc(&raw[i], VPX_IMG_FMT_I420, cfg[i].g_w, cfg[i].g_h, 32)) |
| die("Failed to allocate image", cfg[i].g_w, cfg[i].g_h); |
| |
| if (raw[0].stride[VPX_PLANE_Y] == raw[0].d_w) |
| read_frame_p = read_frame; |
| else |
| read_frame_p = read_frame_by_row; |
| |
| for (i=0; i< NUM_ENCODERS; i++) |
| if(outfile[i]) |
| write_ivf_file_header(outfile[i], &cfg[i], 0); |
| |
| /* Temporal layers settings */ |
| for ( i=0; i<NUM_ENCODERS; i++) |
| { |
| set_temporal_layer_pattern(num_temporal_layers[i], |
| &cfg[i], |
| cfg[i].rc_target_bitrate, |
| &layer_flags[i * VPX_TS_MAX_PERIODICITY]); |
| } |
| |
| /* Initialize multi-encoder */ |
| if(vpx_codec_enc_init_multi(&codec[0], interface, &cfg[0], NUM_ENCODERS, |
| (show_psnr ? VPX_CODEC_USE_PSNR : 0), &dsf[0])) |
| die_codec(&codec[0], "Failed to initialize encoder"); |
| |
| /* The extra encoding configuration parameters can be set as follows. */ |
| /* Set encoding speed */ |
| for ( i=0; i<NUM_ENCODERS; i++) |
| { |
| int speed = -6; |
| /* Lower speed for the lowest resolution. */ |
| if (i == NUM_ENCODERS - 1) speed = -4; |
| if(vpx_codec_control(&codec[i], VP8E_SET_CPUUSED, speed)) |
| die_codec(&codec[i], "Failed to set cpu_used"); |
| } |
| |
| /* Set static threshold = 1 for all encoders */ |
| for ( i=0; i<NUM_ENCODERS; i++) |
| { |
| if(vpx_codec_control(&codec[i], VP8E_SET_STATIC_THRESHOLD, 1)) |
| die_codec(&codec[i], "Failed to set static threshold"); |
| } |
| |
| /* Set NOISE_SENSITIVITY to do TEMPORAL_DENOISING */ |
| /* Enable denoising for the highest-resolution encoder. */ |
| if(vpx_codec_control(&codec[0], VP8E_SET_NOISE_SENSITIVITY, 1)) |
| die_codec(&codec[0], "Failed to set noise_sensitivity"); |
| for ( i=1; i< NUM_ENCODERS; i++) |
| { |
| if(vpx_codec_control(&codec[i], VP8E_SET_NOISE_SENSITIVITY, 0)) |
| die_codec(&codec[i], "Failed to set noise_sensitivity"); |
| } |
| |
| /* Set the number of token partitions */ |
| for ( i=0; i<NUM_ENCODERS; i++) |
| { |
| if(vpx_codec_control(&codec[i], VP8E_SET_TOKEN_PARTITIONS, 1)) |
| die_codec(&codec[i], "Failed to set static threshold"); |
| } |
| |
| /* Set the max intra target bitrate */ |
| for ( i=0; i<NUM_ENCODERS; i++) |
| { |
| unsigned int max_intra_size_pct = |
| (int)(((double)cfg[0].rc_buf_optimal_sz * 0.5) * framerate / 10); |
| if(vpx_codec_control(&codec[i], VP8E_SET_MAX_INTRA_BITRATE_PCT, |
| max_intra_size_pct)) |
| die_codec(&codec[i], "Failed to set static threshold"); |
| //printf("%d %d \n",i,max_intra_size_pct); |
| } |
| |
| frame_avail = 1; |
| got_data = 0; |
| |
| while(frame_avail || got_data) |
| { |
| struct vpx_usec_timer timer; |
| vpx_codec_iter_t iter[NUM_ENCODERS]={NULL}; |
| const vpx_codec_cx_pkt_t *pkt[NUM_ENCODERS]; |
| |
| flags = 0; |
| frame_avail = read_frame_p(infile, &raw[0]); |
| |
| if(frame_avail) |
| { |
| for ( i=1; i<NUM_ENCODERS; i++) |
| { |
| /*Scale the image down a number of times by downsampling factor*/ |
| /* FilterMode 1 or 2 give better psnr than FilterMode 0. */ |
| I420Scale(raw[i-1].planes[VPX_PLANE_Y], raw[i-1].stride[VPX_PLANE_Y], |
| raw[i-1].planes[VPX_PLANE_U], raw[i-1].stride[VPX_PLANE_U], |
| raw[i-1].planes[VPX_PLANE_V], raw[i-1].stride[VPX_PLANE_V], |
| raw[i-1].d_w, raw[i-1].d_h, |
| raw[i].planes[VPX_PLANE_Y], raw[i].stride[VPX_PLANE_Y], |
| raw[i].planes[VPX_PLANE_U], raw[i].stride[VPX_PLANE_U], |
| raw[i].planes[VPX_PLANE_V], raw[i].stride[VPX_PLANE_V], |
| raw[i].d_w, raw[i].d_h, 1); |
| /* Write out down-sampled input. */ |
| length_frame = cfg[i].g_w * cfg[i].g_h *3/2; |
| if (fwrite(raw[i].planes[0], 1, length_frame, |
| downsampled_input[NUM_ENCODERS - i - 1]) != |
| length_frame) |
| { |
| return EXIT_FAILURE; |
| } |
| } |
| } |
| |
| /* Set the flags (reference and update) for all the encoders.*/ |
| for ( i=0; i<NUM_ENCODERS; i++) |
| { |
| layer_id = cfg[i].ts_layer_id[frame_cnt % cfg[i].ts_periodicity]; |
| flags = 0; |
| flag_periodicity = periodicity_to_num_layers |
| [num_temporal_layers[i] - 1]; |
| flags = layer_flags[i * VPX_TS_MAX_PERIODICITY + |
| frame_cnt % flag_periodicity]; |
| // Key frame flag for first frame. |
| if (frame_cnt == 0) |
| { |
| flags |= VPX_EFLAG_FORCE_KF; |
| } |
| if (frame_cnt > 0 && frame_cnt == key_frame_insert) |
| { |
| flags = VPX_EFLAG_FORCE_KF; |
| } |
| |
| vpx_codec_control(&codec[i], VP8E_SET_FRAME_FLAGS, flags); |
| vpx_codec_control(&codec[i], VP8E_SET_TEMPORAL_LAYER_ID, layer_id); |
| } |
| |
| /* Encode each frame at multi-levels */ |
| /* Note the flags must be set to 0 in the encode call if they are set |
| for each frame with the vpx_codec_control(), as done above. */ |
| vpx_usec_timer_start(&timer); |
| if(vpx_codec_encode(&codec[0], frame_avail? &raw[0] : NULL, |
| frame_cnt, 1, 0, arg_deadline)) |
| { |
| die_codec(&codec[0], "Failed to encode frame"); |
| } |
| vpx_usec_timer_mark(&timer); |
| cx_time += vpx_usec_timer_elapsed(&timer); |
| |
| for (i=NUM_ENCODERS-1; i>=0 ; i--) |
| { |
| got_data = 0; |
| while( (pkt[i] = vpx_codec_get_cx_data(&codec[i], &iter[i])) ) |
| { |
| got_data = 1; |
| switch(pkt[i]->kind) { |
| case VPX_CODEC_CX_FRAME_PKT: |
| write_ivf_frame_header(outfile[i], pkt[i]); |
| (void) fwrite(pkt[i]->data.frame.buf, 1, |
| pkt[i]->data.frame.sz, outfile[i]); |
| break; |
| case VPX_CODEC_PSNR_PKT: |
| if (show_psnr) |
| { |
| int j; |
| |
| psnr_sse_total[i] += pkt[i]->data.psnr.sse[0]; |
| psnr_samples_total[i] += pkt[i]->data.psnr.samples[0]; |
| for (j = 0; j < 4; j++) |
| { |
| psnr_totals[i][j] += pkt[i]->data.psnr.psnr[j]; |
| } |
| psnr_count[i]++; |
| } |
| |
| break; |
| default: |
| break; |
| } |
| printf(pkt[i]->kind == VPX_CODEC_CX_FRAME_PKT |
| && (pkt[i]->data.frame.flags & VPX_FRAME_IS_KEY)? "K":""); |
| fflush(stdout); |
| } |
| } |
| 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); |
| |
| fclose(infile); |
| |
| printf("Processed %ld frames.\n",(long int)frame_cnt-1); |
| for (i=0; i< NUM_ENCODERS; i++) |
| { |
| /* Calculate PSNR and print it out */ |
| if ( (show_psnr) && (psnr_count[i]>0) ) |
| { |
| int j; |
| double ovpsnr = sse_to_psnr(psnr_samples_total[i], 255.0, |
| psnr_sse_total[i]); |
| |
| fprintf(stderr, "\n ENC%d PSNR (Overall/Avg/Y/U/V)", i); |
| |
| fprintf(stderr, " %.3lf", ovpsnr); |
| for (j = 0; j < 4; j++) |
| { |
| fprintf(stderr, " %.3lf", psnr_totals[i][j]/psnr_count[i]); |
| } |
| } |
| |
| if(vpx_codec_destroy(&codec[i])) |
| die_codec(&codec[i], "Failed to destroy codec"); |
| |
| vpx_img_free(&raw[i]); |
| |
| if(!outfile[i]) |
| continue; |
| |
| /* Try to rewrite the file header with the actual frame count */ |
| if(!fseek(outfile[i], 0, SEEK_SET)) |
| write_ivf_file_header(outfile[i], &cfg[i], frame_cnt-1); |
| fclose(outfile[i]); |
| } |
| printf("\n"); |
| |
| return EXIT_SUCCESS; |
| } |
