Commit 74e1830b authored by Ivan Maltz's avatar Ivan Maltz

log overall psnr, average psnr, and overall mse

Change-Id: I0b4fa1f8104b7fa5780d4e99e5401c14271a992d
parent 801754ee
......@@ -13,6 +13,7 @@
* VP9 SVC encoding support via libvpx
*/
#include <math.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
......@@ -40,6 +41,7 @@ _CRTIMP char *__cdecl strtok_s(char *str, const char *delim, char **context);
#define SUPERFRAME_SLOTS (8)
#define SUPERFRAME_BUFFER_SIZE (SUPERFRAME_SLOTS * sizeof(uint32_t) + 2)
#define OPTION_BUFFER_SIZE 256
#define COMPONENTS 4 // psnr & sse statistics maintained for total, y, u, v
static const char *DEFAULT_QUANTIZER_VALUES = "60,53,39,33,27";
static const char *DEFAULT_SCALE_FACTORS = "4/16,5/16,7/16,11/16,16/16";
......@@ -55,8 +57,9 @@ typedef struct SvcInternal {
int quantizer[VPX_SS_MAX_LAYERS];
// accumulated statistics
double psnr_in_layer[VPX_SS_MAX_LAYERS];
uint32_t bytes_in_layer[VPX_SS_MAX_LAYERS];
double psnr_sum[VPX_SS_MAX_LAYERS][COMPONENTS]; // total/Y/U/V
uint64_t sse_sum[VPX_SS_MAX_LAYERS][COMPONENTS];
uint32_t bytes_sum[VPX_SS_MAX_LAYERS];
// codec encoding values
int width; // width of highest layer
......@@ -814,7 +817,7 @@ vpx_codec_err_t vpx_svc_encode(SvcContext *svc_ctx, vpx_codec_ctx_t *codec_ctx,
switch (cx_pkt->kind) {
case VPX_CODEC_CX_FRAME_PKT: {
const uint32_t frame_pkt_size = (uint32_t)(cx_pkt->data.frame.sz);
si->bytes_in_layer[si->layer] += frame_pkt_size;
si->bytes_sum[si->layer] += frame_pkt_size;
svc_log(svc_ctx, SVC_LOG_DEBUG,
"SVC frame: %d, layer: %d, size: %u\n",
si->encode_frame_count, si->layer, frame_pkt_size);
......@@ -832,13 +835,23 @@ vpx_codec_err_t vpx_svc_encode(SvcContext *svc_ctx, vpx_codec_ctx_t *codec_ctx,
break;
}
case VPX_CODEC_PSNR_PKT: {
int i;
svc_log(svc_ctx, SVC_LOG_DEBUG,
"SVC frame: %d, layer: %d, PSNR(Total/Y/U/V): "
"%2.3f %2.3f %2.3f %2.3f \n",
si->encode_frame_count, si->layer,
cx_pkt->data.psnr.psnr[0], cx_pkt->data.psnr.psnr[1],
cx_pkt->data.psnr.psnr[2], cx_pkt->data.psnr.psnr[3]);
si->psnr_in_layer[si->layer] += cx_pkt->data.psnr.psnr[0];
svc_log(svc_ctx, SVC_LOG_DEBUG,
"SVC frame: %d, layer: %d, SSE(Total/Y/U/V): "
"%2.3f %2.3f %2.3f %2.3f \n",
si->encode_frame_count, si->layer,
cx_pkt->data.psnr.sse[0], cx_pkt->data.psnr.sse[1],
cx_pkt->data.psnr.sse[2], cx_pkt->data.psnr.sse[3]);
for (i = 0; i < COMPONENTS; i++) {
si->psnr_sum[si->layer][i] += cx_pkt->data.psnr.psnr[i];
si->sse_sum[si->layer][i] += cx_pkt->data.psnr.sse[i];
}
break;
}
default: {
......@@ -916,11 +929,21 @@ void vpx_svc_set_keyframe(SvcContext *svc_ctx) {
si->frame_within_gop = 0;
}
static double calc_psnr(double d) {
if (d == 0) return 100;
return -10.0 * log(d) / log(10.0);
}
// dump accumulated statistics and reset accumulated values
const char *vpx_svc_dump_statistics(SvcContext *svc_ctx) {
int number_of_frames, number_of_keyframes, encode_frame_count;
int i;
int i, j;
uint32_t bytes_total = 0;
double scale[COMPONENTS];
double psnr[COMPONENTS];
double mse[COMPONENTS];
double y_scale;
SvcInternal *const si = get_svc_internal(svc_ctx);
if (svc_ctx == NULL || si == NULL) return NULL;
......@@ -938,12 +961,36 @@ const char *vpx_svc_dump_statistics(SvcContext *svc_ctx) {
(i == 1 || i == 3)) {
number_of_frames -= number_of_keyframes;
}
svc_log(svc_ctx, SVC_LOG_INFO, "Layer %d PSNR=[%2.3f], Bytes=[%u]\n", i,
(double)si->psnr_in_layer[i] / number_of_frames,
si->bytes_in_layer[i]);
bytes_total += si->bytes_in_layer[i];
si->psnr_in_layer[i] = 0;
si->bytes_in_layer[i] = 0;
svc_log(svc_ctx, SVC_LOG_INFO,
"Layer %d Average PSNR=[%2.3f, %2.3f, %2.3f, %2.3f], Bytes=[%u]\n",
i, (double)si->psnr_sum[i][0] / number_of_frames,
(double)si->psnr_sum[i][1] / number_of_frames,
(double)si->psnr_sum[i][2] / number_of_frames,
(double)si->psnr_sum[i][3] / number_of_frames, si->bytes_sum[i]);
// the following psnr calculation is deduced from ffmpeg.c#print_report
y_scale = si->width * si->height * 255.0 * 255.0 * number_of_frames;
scale[1] = y_scale;
scale[2] = scale[3] = y_scale / 4; // U or V
scale[0] = y_scale * 1.5; // total
for (j = 0; j < COMPONENTS; j++) {
psnr[j] = calc_psnr(si->sse_sum[i][j] / scale[j]);
mse[j] = si->sse_sum[i][j] * 255.0 * 255.0 / scale[j];
}
svc_log(svc_ctx, SVC_LOG_INFO,
"Layer %d Overall PSNR=[%2.3f, %2.3f, %2.3f, %2.3f]\n", i, psnr[0],
psnr[1], psnr[2], psnr[3]);
svc_log(svc_ctx, SVC_LOG_INFO,
"Layer %d Overall MSE=[%2.3f, %2.3f, %2.3f, %2.3f]\n", i, mse[0],
mse[1], mse[2], mse[3]);
bytes_total += si->bytes_sum[i];
// clear sums for next time
si->bytes_sum[i] = 0;
for (j = 0; j < COMPONENTS; ++j) {
si->psnr_sum[i][j] = 0;
si->sse_sum[i][j] = 0;
}
}
// only display statistics once
......
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