ref: 98254a441b1b97b9540f552344c85bae4bc3fb55
parent: 7e157467dccec39b9863ab077a696189576283ce
author: Dmitry Kovalev <dkovalev@google.com>
date: Fri Jan 17 11:56:04 EST 2014
Moving vp8_multi_resolution_encoder to examples folder. Change-Id: If0e1cd13aecd1620d26c28bf95e4f84469f78456
--- a/examples.mk
+++ b/examples.mk
@@ -109,11 +109,13 @@
vp8cx_set_ref.GUID = C5E31F7F-96F6-48BD-BD3E-10EBF6E8057A
vp8cx_set_ref.DESCRIPTION = VP8 set encoder reference frame
-# C file is provided, not generated automatically.
-UTILS-$(CONFIG_MULTI_RES_ENCODING) += vp8_multi_resolution_encoder.c
-vp8_multi_resolution_encoder.SRCS += $(LIBYUV_SRCS)
-vp8_multi_resolution_encoder.GUID = 04f8738e-63c8-423b-90fa-7c2703a374de
-vp8_multi_resolution_encoder.DESCRIPTION = VP8 Multiple-resolution Encoding
+
+ifeq ($(CONFIG_MULTI_RES_ENCODING),yes)
+GEN_EXAMPLES-$(CONFIG_VP8_DECODER) += vp8_multi_resolution_encoder.c
+vp8_multi_resolution_encoder.SRCS += $(LIBYUV_SRCS)
+vp8_multi_resolution_encoder.GUID = 04f8738e-63c8-423b-90fa-7c2703a374de
+vp8_multi_resolution_encoder.DESCRIPTION = VP8 Multiple-resolution Encoding
+endif
# Handle extra library flags depending on codec configuration
--- /dev/null
+++ b/examples/vp8_multi_resolution_encoder.c
@@ -1,0 +1,485 @@
+/*
+ * 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]={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}};+
+ 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 threshold. */
+ for ( i=0; i<NUM_ENCODERS; i++)
+ {+ unsigned int static_thresh = 1;
+ 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 */
+ /* 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");
+ }
+
+
+ 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;
+}
--- a/vp8_multi_resolution_encoder.c
+++ /dev/null
@@ -1,485 +1,0 @@
-/*
- * 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]={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}};-
- 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 threshold. */
- for ( i=0; i<NUM_ENCODERS; i++)
- {- unsigned int static_thresh = 1;
- 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 */
- /* 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");
- }
-
-
- 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;
-}