/* * 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. */#include <stdio.h>#include <stdlib.h>#include <stdarg.h>#include <string.h>#include "math.h"#define VPX_CODEC_DISABLE_COMPAT 1#include "vpx/vpx_encoder.h"#include "vpx/vp8cx.h"#include "vpx_ports/mem_ops.h"#define interface (vpx_codec_vp8_cx())#define fourcc 0x30385056 #define IVF_FILE_HDR_SZ (32)#define IVF_FRAME_HDR_SZ (12) /* * 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. */#define NUM_ENCODERS 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" static double vp8_mse2psnr(double Samples, double Peak, double Mse){ double psnr; if ((double)Mse > 0.0) psnr = 10.0 * log10(Peak * Peak * Samples / Mse); else psnr = 60; // Limit to prevent / 0 if (psnr > 60) psnr = 60; return psnr;} static void die(const char *fmt, ...) { va_list ap; va_start(ap, fmt); vprintf(fmt, ap); if(fmt[strlen(fmt)-1] != '\n') printf("\n"); exit(EXIT_FAILURE);} static void die_codec(vpx_codec_ctx_t *ctx, const char *s) { const char *detail = vpx_codec_error_detail(ctx); printf("%s: %s\n", s, vpx_codec_error(ctx)); if(detail) printf(" %s\n",detail); exit(EXIT_FAILURE);} 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);} int main(int argc, char **argv){ FILE *infile, *outfile[NUM_ENCODERS]; vpx_codec_ctx_t codec[NUM_ENCODERS]; vpx_codec_enc_cfg_t cfg[NUM_ENCODERS]; vpx_codec_pts_t frame_cnt = 0; vpx_image_t raw[NUM_ENCODERS]; vpx_codec_err_t res[NUM_ENCODERS]; int i; long width; long height; int frame_avail; int got_data; int flags = 0; /*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; 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}; /* 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]={1400, 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}}; if(argc!= (5+NUM_ENCODERS)) die("Usage: %s <width> <height> <infile> <outfile(s)> <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); 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[3], "rb"))) die("Failed to open %s for reading", argv[3]); /* 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+4], "wb"))) die("Failed to open %s for writing", argv[i+4]); } show_psnr = strtol(argv[NUM_ENCODERS + 4], 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].g_threads = 1; /* number of threads used */ cfg[0].rc_dropframe_thresh = 30; cfg[0].rc_end_usage = VPX_CBR; cfg[0].rc_resize_allowed = 0; cfg[0].rc_min_quantizer = 4; cfg[0].rc_max_quantizer = 56; cfg[0].rc_undershoot_pct = 98; cfg[0].rc_overshoot_pct = 100; 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_DISABLED; 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].g_threads = 1; /* number of threads used */ 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++; } /* 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); /* 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; if(vpx_codec_control(&codec[i], VP8E_SET_CPUUSED, speed)) die_codec(&codec[i], "Failed to set cpu_used"); } /* Set static thresh for highest-resolution encoder. Set it to 1000 for * better performance. */ { unsigned int static_thresh = 1000; if(vpx_codec_control(&codec[0], VP8E_SET_STATIC_THRESHOLD, static_thresh)) die_codec(&codec[0], "Failed to set static threshold"); } /* Set static thresh = 0 for other encoders for better quality */ for ( i=1; i<NUM_ENCODERS; i++) { unsigned int static_thresh = 0; if(vpx_codec_control(&codec[i], VP8E_SET_STATIC_THRESHOLD, static_thresh)) die_codec(&codec[i], "Failed to set static threshold"); } /* Set NOISE_SENSITIVITY to do TEMPORAL_DENOISING */ for ( i=0; i< NUM_ENCODERS; i++) { if(vpx_codec_control(&codec[i], VP8E_SET_NOISE_SENSITIVITY, 0)) die_codec(&codec[i], "Failed to set noise_sensitivity"); } frame_avail = 1; got_data = 0; while(frame_avail || got_data) { 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); } } /* Encode each frame at multi-levels */ if(vpx_codec_encode(&codec[0], frame_avail? &raw[0] : NULL, frame_cnt, 1, flags, arg_deadline)) die_codec(&codec[0], "Failed to encode frame"); 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++) { //fprintf(stderr, "%.3lf ", pkt[i]->data.psnr.psnr[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"); 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 = vp8_mse2psnr(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;}
/*
* 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include "math.h"
#define VPX_CODEC_DISABLE_COMPAT 1
#include "vpx/vpx_encoder.h"
#include "vpx/vp8cx.h"
#include "vpx_ports/mem_ops.h"
#define interface (vpx_codec_vp8_cx())
#define fourcc 0x30385056
#define IVF_FILE_HDR_SZ (32)
#define IVF_FRAME_HDR_SZ (12)
/*
* 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.
*/
#define NUM_ENCODERS 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"
static double vp8_mse2psnr(double Samples, double Peak, double Mse)
{
double psnr;
if ((double)Mse > 0.0)
psnr = 10.0 * log10(Peak * Peak * Samples / Mse);
else
psnr = 60; // Limit to prevent / 0
if (psnr > 60)
psnr = 60;
return psnr;
}
static void die(const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
if(fmt[strlen(fmt)-1] != '\n')
printf("\n");
exit(EXIT_FAILURE);
}
static void die_codec(vpx_codec_ctx_t *ctx, const char *s) {
const char *detail = vpx_codec_error_detail(ctx);
printf("%s: %s\n", s, vpx_codec_error(ctx));
if(detail)
printf(" %s\n",detail);
exit(EXIT_FAILURE);
}
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);
}
int main(int argc, char **argv)
{
FILE *infile, *outfile[NUM_ENCODERS];
vpx_codec_ctx_t codec[NUM_ENCODERS];
vpx_codec_enc_cfg_t cfg[NUM_ENCODERS];
vpx_codec_pts_t frame_cnt = 0;
vpx_image_t raw[NUM_ENCODERS];
vpx_codec_err_t res[NUM_ENCODERS];
int i;
long width;
long height;
int frame_avail;
int got_data;
int flags = 0;
/*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;
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};
/* 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]={1400, 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}};
if(argc!= (5+NUM_ENCODERS))
die("Usage: %s <width> <height> <infile> <outfile(s)> <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);
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[3], "rb")))
die("Failed to open %s for reading", argv[3]);
/* 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+4], "wb")))
die("Failed to open %s for writing", argv[i+4]);
}
show_psnr = strtol(argv[NUM_ENCODERS + 4], 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].g_threads = 1; /* number of threads used */
cfg[0].rc_dropframe_thresh = 30;
cfg[0].rc_end_usage = VPX_CBR;
cfg[0].rc_resize_allowed = 0;
cfg[0].rc_min_quantizer = 4;
cfg[0].rc_max_quantizer = 56;
cfg[0].rc_undershoot_pct = 98;
cfg[0].rc_overshoot_pct = 100;
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_DISABLED;
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].g_threads = 1; /* number of threads used */
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++;
}
/* 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);
/* 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;
if(vpx_codec_control(&codec[i], VP8E_SET_CPUUSED, speed))
die_codec(&codec[i], "Failed to set cpu_used");
}
/* Set static thresh for highest-resolution encoder. Set it to 1000 for
* better performance. */
{
unsigned int static_thresh = 1000;
if(vpx_codec_control(&codec[0], VP8E_SET_STATIC_THRESHOLD, static_thresh))
die_codec(&codec[0], "Failed to set static threshold");
}
/* Set static thresh = 0 for other encoders for better quality */
for ( i=1; i<NUM_ENCODERS; i++)
{
unsigned int static_thresh = 0;
if(vpx_codec_control(&codec[i], VP8E_SET_STATIC_THRESHOLD, static_thresh))
die_codec(&codec[i], "Failed to set static threshold");
}
/* Set NOISE_SENSITIVITY to do TEMPORAL_DENOISING */
for ( i=0; i< NUM_ENCODERS; i++)
{
if(vpx_codec_control(&codec[i], VP8E_SET_NOISE_SENSITIVITY, 0))
die_codec(&codec[i], "Failed to set noise_sensitivity");
}
frame_avail = 1;
got_data = 0;
while(frame_avail || got_data)
{
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);
}
}
/* Encode each frame at multi-levels */
if(vpx_codec_encode(&codec[0], frame_avail? &raw[0] : NULL,
frame_cnt, 1, flags, arg_deadline))
die_codec(&codec[0], "Failed to encode frame");
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++)
{
//fprintf(stderr, "%.3lf ", pkt[i]->data.psnr.psnr[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");
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 = vp8_mse2psnr(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;
}