diff options
Diffstat (limited to 'media/libvpx/vpx/src/svc_encodeframe.c')
| -rw-r--r-- | media/libvpx/vpx/src/svc_encodeframe.c | 663 |
1 files changed, 663 insertions, 0 deletions
diff --git a/media/libvpx/vpx/src/svc_encodeframe.c b/media/libvpx/vpx/src/svc_encodeframe.c new file mode 100644 index 000000000..9844ace54 --- /dev/null +++ b/media/libvpx/vpx/src/svc_encodeframe.c @@ -0,0 +1,663 @@ +/* + * Copyright (c) 2013 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. + */ + +/** + * @file + * VP9 SVC encoding support via libvpx + */ + +#include <assert.h> +#include <math.h> +#include <limits.h> +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#define VPX_DISABLE_CTRL_TYPECHECKS 1 +#include "./vpx_config.h" +#include "vpx/svc_context.h" +#include "vpx/vp8cx.h" +#include "vpx/vpx_encoder.h" +#include "vpx_mem/vpx_mem.h" +#include "vp9/common/vp9_onyxc_int.h" + +#ifdef __MINGW32__ +#define strtok_r strtok_s +#ifndef MINGW_HAS_SECURE_API +// proto from /usr/x86_64-w64-mingw32/include/sec_api/string_s.h +_CRTIMP char *__cdecl strtok_s(char *str, const char *delim, char **context); +#endif /* MINGW_HAS_SECURE_API */ +#endif /* __MINGW32__ */ + +#ifdef _MSC_VER +#define strdup _strdup +#define strtok_r strtok_s +#endif + +#define SVC_REFERENCE_FRAMES 8 +#define SUPERFRAME_SLOTS (8) +#define SUPERFRAME_BUFFER_SIZE (SUPERFRAME_SLOTS * sizeof(uint32_t) + 2) + +#define MAX_QUANTIZER 63 + +static const int DEFAULT_SCALE_FACTORS_NUM[VPX_SS_MAX_LAYERS] = { + 4, 5, 7, 11, 16 +}; + +static const int DEFAULT_SCALE_FACTORS_DEN[VPX_SS_MAX_LAYERS] = { + 16, 16, 16, 16, 16 +}; + +typedef enum { + QUANTIZER = 0, + BITRATE, + SCALE_FACTOR, + AUTO_ALT_REF, + ALL_OPTION_TYPES +} LAYER_OPTION_TYPE; + +static const int option_max_values[ALL_OPTION_TYPES] = { + 63, INT_MAX, INT_MAX, 1 +}; + +static const int option_min_values[ALL_OPTION_TYPES] = { + 0, 0, 1, 0 +}; + +// One encoded frame +typedef struct FrameData { + void *buf; // compressed data buffer + size_t size; // length of compressed data + vpx_codec_frame_flags_t flags; /**< flags for this frame */ + struct FrameData *next; +} FrameData; + +static SvcInternal_t *get_svc_internal(SvcContext *svc_ctx) { + if (svc_ctx == NULL) return NULL; + if (svc_ctx->internal == NULL) { + SvcInternal_t *const si = (SvcInternal_t *)malloc(sizeof(*si)); + if (si != NULL) { + memset(si, 0, sizeof(*si)); + } + svc_ctx->internal = si; + } + return (SvcInternal_t *)svc_ctx->internal; +} + +static const SvcInternal_t *get_const_svc_internal( + const SvcContext *svc_ctx) { + if (svc_ctx == NULL) return NULL; + return (const SvcInternal_t *)svc_ctx->internal; +} + +static void svc_log_reset(SvcContext *svc_ctx) { + SvcInternal_t *const si = (SvcInternal_t *)svc_ctx->internal; + si->message_buffer[0] = '\0'; +} + +static int svc_log(SvcContext *svc_ctx, SVC_LOG_LEVEL level, + const char *fmt, ...) { + char buf[512]; + int retval = 0; + va_list ap; + SvcInternal_t *const si = get_svc_internal(svc_ctx); + + if (level > svc_ctx->log_level) { + return retval; + } + + va_start(ap, fmt); + retval = vsnprintf(buf, sizeof(buf), fmt, ap); + va_end(ap); + + if (svc_ctx->log_print) { + printf("%s", buf); + } else { + strncat(si->message_buffer, buf, + sizeof(si->message_buffer) - strlen(si->message_buffer) - 1); + } + + if (level == SVC_LOG_ERROR) { + si->codec_ctx->err_detail = si->message_buffer; + } + return retval; +} + +static vpx_codec_err_t extract_option(LAYER_OPTION_TYPE type, + char *input, + int *value0, + int *value1) { + if (type == SCALE_FACTOR) { + *value0 = strtol(input, &input, 10); + if (*input++ != '/') + return VPX_CODEC_INVALID_PARAM; + *value1 = strtol(input, &input, 10); + + if (*value0 < option_min_values[SCALE_FACTOR] || + *value1 < option_min_values[SCALE_FACTOR] || + *value0 > option_max_values[SCALE_FACTOR] || + *value1 > option_max_values[SCALE_FACTOR] || + *value0 > *value1) // num shouldn't be greater than den + return VPX_CODEC_INVALID_PARAM; + } else { + *value0 = atoi(input); + if (*value0 < option_min_values[type] || + *value0 > option_max_values[type]) + return VPX_CODEC_INVALID_PARAM; + } + return VPX_CODEC_OK; +} + +static vpx_codec_err_t parse_layer_options_from_string(SvcContext *svc_ctx, + LAYER_OPTION_TYPE type, + const char *input, + int *option0, + int *option1) { + int i; + vpx_codec_err_t res = VPX_CODEC_OK; + char *input_string; + char *token; + const char *delim = ","; + char *save_ptr; + + if (input == NULL || option0 == NULL || + (option1 == NULL && type == SCALE_FACTOR)) + return VPX_CODEC_INVALID_PARAM; + + input_string = strdup(input); + token = strtok_r(input_string, delim, &save_ptr); + for (i = 0; i < svc_ctx->spatial_layers; ++i) { + if (token != NULL) { + res = extract_option(type, token, option0 + i, option1 + i); + if (res != VPX_CODEC_OK) + break; + token = strtok_r(NULL, delim, &save_ptr); + } else { + break; + } + } + if (res == VPX_CODEC_OK && i != svc_ctx->spatial_layers) { + svc_log(svc_ctx, SVC_LOG_ERROR, + "svc: layer params type: %d %d values required, " + "but only %d specified\n", type, svc_ctx->spatial_layers, i); + res = VPX_CODEC_INVALID_PARAM; + } + free(input_string); + return res; +} + +/** + * Parse SVC encoding options + * Format: encoding-mode=<svc_mode>,layers=<layer_count> + * scale-factors=<n1>/<d1>,<n2>/<d2>,... + * quantizers=<q1>,<q2>,... + * svc_mode = [i|ip|alt_ip|gf] + */ +static vpx_codec_err_t parse_options(SvcContext *svc_ctx, const char *options) { + char *input_string; + char *option_name; + char *option_value; + char *input_ptr; + SvcInternal_t *const si = get_svc_internal(svc_ctx); + vpx_codec_err_t res = VPX_CODEC_OK; + int i, alt_ref_enabled = 0; + + if (options == NULL) return VPX_CODEC_OK; + input_string = strdup(options); + + // parse option name + option_name = strtok_r(input_string, "=", &input_ptr); + while (option_name != NULL) { + // parse option value + option_value = strtok_r(NULL, " ", &input_ptr); + if (option_value == NULL) { + svc_log(svc_ctx, SVC_LOG_ERROR, "option missing value: %s\n", + option_name); + res = VPX_CODEC_INVALID_PARAM; + break; + } + if (strcmp("spatial-layers", option_name) == 0) { + svc_ctx->spatial_layers = atoi(option_value); + } else if (strcmp("temporal-layers", option_name) == 0) { + svc_ctx->temporal_layers = atoi(option_value); + } else if (strcmp("scale-factors", option_name) == 0) { + res = parse_layer_options_from_string(svc_ctx, SCALE_FACTOR, option_value, + si->svc_params.scaling_factor_num, + si->svc_params.scaling_factor_den); + if (res != VPX_CODEC_OK) break; + } else if (strcmp("max-quantizers", option_name) == 0) { + res = parse_layer_options_from_string(svc_ctx, QUANTIZER, option_value, + si->svc_params.max_quantizers, + NULL); + if (res != VPX_CODEC_OK) break; + } else if (strcmp("min-quantizers", option_name) == 0) { + res = parse_layer_options_from_string(svc_ctx, QUANTIZER, option_value, + si->svc_params.min_quantizers, + NULL); + if (res != VPX_CODEC_OK) break; + } else if (strcmp("auto-alt-refs", option_name) == 0) { + res = parse_layer_options_from_string(svc_ctx, AUTO_ALT_REF, option_value, + si->enable_auto_alt_ref, NULL); + if (res != VPX_CODEC_OK) break; + } else if (strcmp("bitrates", option_name) == 0) { + res = parse_layer_options_from_string(svc_ctx, BITRATE, option_value, + si->bitrates, NULL); + if (res != VPX_CODEC_OK) break; + } else if (strcmp("multi-frame-contexts", option_name) == 0) { + si->use_multiple_frame_contexts = atoi(option_value); + } else { + svc_log(svc_ctx, SVC_LOG_ERROR, "invalid option: %s\n", option_name); + res = VPX_CODEC_INVALID_PARAM; + break; + } + option_name = strtok_r(NULL, "=", &input_ptr); + } + free(input_string); + + for (i = 0; i < svc_ctx->spatial_layers; ++i) { + if (si->svc_params.max_quantizers[i] > MAX_QUANTIZER || + si->svc_params.max_quantizers[i] < 0 || + si->svc_params.min_quantizers[i] > si->svc_params.max_quantizers[i] || + si->svc_params.min_quantizers[i] < 0) + res = VPX_CODEC_INVALID_PARAM; + } + + if (si->use_multiple_frame_contexts && + (svc_ctx->spatial_layers > 3 || + svc_ctx->spatial_layers * svc_ctx->temporal_layers > 4)) + res = VPX_CODEC_INVALID_PARAM; + + for (i = 0; i < svc_ctx->spatial_layers; ++i) + alt_ref_enabled += si->enable_auto_alt_ref[i]; + if (alt_ref_enabled > REF_FRAMES - svc_ctx->spatial_layers) { + svc_log(svc_ctx, SVC_LOG_ERROR, + "svc: auto alt ref: Maxinum %d(REF_FRAMES - layers) layers could" + "enabled auto alt reference frame, but % layers are enabled\n", + REF_FRAMES - svc_ctx->spatial_layers, alt_ref_enabled); + res = VPX_CODEC_INVALID_PARAM; + } + + return res; +} + +vpx_codec_err_t vpx_svc_set_options(SvcContext *svc_ctx, + const char *options) { + SvcInternal_t *const si = get_svc_internal(svc_ctx); + if (svc_ctx == NULL || options == NULL || si == NULL) { + return VPX_CODEC_INVALID_PARAM; + } + strncpy(si->options, options, sizeof(si->options)); + si->options[sizeof(si->options) - 1] = '\0'; + return VPX_CODEC_OK; +} + +void assign_layer_bitrates(const SvcContext *svc_ctx, + vpx_codec_enc_cfg_t *const enc_cfg) { + int i; + const SvcInternal_t *const si = get_const_svc_internal(svc_ctx); + int sl, tl, spatial_layer_target; + + if (svc_ctx->temporal_layering_mode != 0) { + if (si->bitrates[0] != 0) { + enc_cfg->rc_target_bitrate = 0; + for (sl = 0; sl < svc_ctx->spatial_layers; ++sl) { + enc_cfg->ss_target_bitrate[sl*svc_ctx->temporal_layers] = 0; + for (tl = 0; tl < svc_ctx->temporal_layers; ++tl) { + enc_cfg->ss_target_bitrate[sl*svc_ctx->temporal_layers] + += (unsigned int)si->bitrates[sl * svc_ctx->temporal_layers + tl]; + enc_cfg->layer_target_bitrate[sl*svc_ctx->temporal_layers + tl] + = si->bitrates[sl * svc_ctx->temporal_layers + tl]; + } + } + } else { + float total = 0; + float alloc_ratio[VPX_MAX_LAYERS] = {0}; + + for (sl = 0; sl < svc_ctx->spatial_layers; ++sl) { + if (si->svc_params.scaling_factor_den[sl] > 0) { + alloc_ratio[sl] = (float)(si->svc_params.scaling_factor_num[sl] * + 1.0 / si->svc_params.scaling_factor_den[sl]); + total += alloc_ratio[sl]; + } + } + + for (sl = 0; sl < svc_ctx->spatial_layers; ++sl) { + enc_cfg->ss_target_bitrate[sl] = spatial_layer_target = + (unsigned int)(enc_cfg->rc_target_bitrate * + alloc_ratio[sl] / total); + if (svc_ctx->temporal_layering_mode == 3) { + enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers] = + spatial_layer_target >> 1; + enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers + 1] = + (spatial_layer_target >> 1) + (spatial_layer_target >> 2); + enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers + 2] = + spatial_layer_target; + } else if (svc_ctx->temporal_layering_mode == 2) { + enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers] = + spatial_layer_target * 2 / 3; + enc_cfg->layer_target_bitrate[sl * svc_ctx->temporal_layers + 1] = + spatial_layer_target; + } else { + // User should explicitly assign bitrates in this case. + assert(0); + } + } + } + } else { + if (si->bitrates[0] != 0) { + enc_cfg->rc_target_bitrate = 0; + for (i = 0; i < svc_ctx->spatial_layers; ++i) { + enc_cfg->ss_target_bitrate[i] = (unsigned int)si->bitrates[i]; + enc_cfg->rc_target_bitrate += si->bitrates[i]; + } + } else { + float total = 0; + float alloc_ratio[VPX_MAX_LAYERS] = {0}; + + for (i = 0; i < svc_ctx->spatial_layers; ++i) { + if (si->svc_params.scaling_factor_den[i] > 0) { + alloc_ratio[i] = (float)(si->svc_params.scaling_factor_num[i] * 1.0 / + si->svc_params.scaling_factor_den[i]); + + alloc_ratio[i] *= alloc_ratio[i]; + total += alloc_ratio[i]; + } + } + for (i = 0; i < VPX_SS_MAX_LAYERS; ++i) { + if (total > 0) { + enc_cfg->layer_target_bitrate[i] = (unsigned int) + (enc_cfg->rc_target_bitrate * alloc_ratio[i] / total); + } + } + } + } +} + +vpx_codec_err_t vpx_svc_init(SvcContext *svc_ctx, vpx_codec_ctx_t *codec_ctx, + vpx_codec_iface_t *iface, + vpx_codec_enc_cfg_t *enc_cfg) { + vpx_codec_err_t res; + int i; + SvcInternal_t *const si = get_svc_internal(svc_ctx); + if (svc_ctx == NULL || codec_ctx == NULL || iface == NULL || + enc_cfg == NULL) { + return VPX_CODEC_INVALID_PARAM; + } + if (si == NULL) return VPX_CODEC_MEM_ERROR; + + si->codec_ctx = codec_ctx; + + si->width = enc_cfg->g_w; + si->height = enc_cfg->g_h; + + if (enc_cfg->kf_max_dist < 2) { + svc_log(svc_ctx, SVC_LOG_ERROR, "key frame distance too small: %d\n", + enc_cfg->kf_max_dist); + return VPX_CODEC_INVALID_PARAM; + } + si->kf_dist = enc_cfg->kf_max_dist; + + if (svc_ctx->spatial_layers == 0) + svc_ctx->spatial_layers = VPX_SS_DEFAULT_LAYERS; + if (svc_ctx->spatial_layers < 1 || + svc_ctx->spatial_layers > VPX_SS_MAX_LAYERS) { + svc_log(svc_ctx, SVC_LOG_ERROR, "spatial layers: invalid value: %d\n", + svc_ctx->spatial_layers); + return VPX_CODEC_INVALID_PARAM; + } + + // Note: temporal_layering_mode only applies to one-pass CBR + // si->svc_params.temporal_layering_mode = svc_ctx->temporal_layering_mode; + if (svc_ctx->temporal_layering_mode == 3) { + svc_ctx->temporal_layers = 3; + } else if (svc_ctx->temporal_layering_mode == 2) { + svc_ctx->temporal_layers = 2; + } + + for (i = 0; i < VPX_SS_MAX_LAYERS; ++i) { + si->svc_params.max_quantizers[i] = MAX_QUANTIZER; + si->svc_params.min_quantizers[i] = 0; + si->svc_params.scaling_factor_num[i] = DEFAULT_SCALE_FACTORS_NUM[i]; + si->svc_params.scaling_factor_den[i] = DEFAULT_SCALE_FACTORS_DEN[i]; + } + + // Parse aggregate command line options. Options must start with + // "layers=xx" then followed by other options + res = parse_options(svc_ctx, si->options); + if (res != VPX_CODEC_OK) return res; + + if (svc_ctx->spatial_layers < 1) + svc_ctx->spatial_layers = 1; + if (svc_ctx->spatial_layers > VPX_SS_MAX_LAYERS) + svc_ctx->spatial_layers = VPX_SS_MAX_LAYERS; + + if (svc_ctx->temporal_layers < 1) + svc_ctx->temporal_layers = 1; + if (svc_ctx->temporal_layers > VPX_TS_MAX_LAYERS) + svc_ctx->temporal_layers = VPX_TS_MAX_LAYERS; + + if (svc_ctx->temporal_layers * svc_ctx->spatial_layers > VPX_MAX_LAYERS) { + svc_log(svc_ctx, SVC_LOG_ERROR, + "spatial layers * temporal layers exceeds the maximum number of " + "allowed layers of %d\n", + svc_ctx->spatial_layers * svc_ctx->temporal_layers, + (int) VPX_MAX_LAYERS); + return VPX_CODEC_INVALID_PARAM; + } + assign_layer_bitrates(svc_ctx, enc_cfg); + +#if CONFIG_SPATIAL_SVC + for (i = 0; i < svc_ctx->spatial_layers; ++i) + enc_cfg->ss_enable_auto_alt_ref[i] = si->enable_auto_alt_ref[i]; +#endif + + if (svc_ctx->temporal_layers > 1) { + int i; + for (i = 0; i < svc_ctx->temporal_layers; ++i) { + enc_cfg->ts_target_bitrate[i] = enc_cfg->rc_target_bitrate / + svc_ctx->temporal_layers; + enc_cfg->ts_rate_decimator[i] = 1 << (svc_ctx->temporal_layers - 1 - i); + } + } + + if (svc_ctx->threads) + enc_cfg->g_threads = svc_ctx->threads; + + // Modify encoder configuration + enc_cfg->ss_number_layers = svc_ctx->spatial_layers; + enc_cfg->ts_number_layers = svc_ctx->temporal_layers; + + if (enc_cfg->rc_end_usage == VPX_CBR) { + enc_cfg->rc_resize_allowed = 0; + enc_cfg->rc_min_quantizer = 2; + enc_cfg->rc_max_quantizer = 63; + enc_cfg->rc_undershoot_pct = 50; + enc_cfg->rc_overshoot_pct = 50; + enc_cfg->rc_buf_initial_sz = 20; + enc_cfg->rc_buf_optimal_sz = 600; + enc_cfg->rc_buf_sz = 1000; + } + + if (enc_cfg->g_error_resilient == 0 && si->use_multiple_frame_contexts == 0) + enc_cfg->g_error_resilient = 1; + + // Initialize codec + res = vpx_codec_enc_init(codec_ctx, iface, enc_cfg, VPX_CODEC_USE_PSNR); + if (res != VPX_CODEC_OK) { + svc_log(svc_ctx, SVC_LOG_ERROR, "svc_enc_init error\n"); + return res; + } + + vpx_codec_control(codec_ctx, VP9E_SET_SVC, 1); + vpx_codec_control(codec_ctx, VP9E_SET_SVC_PARAMETERS, &si->svc_params); + + return VPX_CODEC_OK; +} + +/** + * Encode a frame into multiple layers + * Create a superframe containing the individual layers + */ +vpx_codec_err_t vpx_svc_encode(SvcContext *svc_ctx, + vpx_codec_ctx_t *codec_ctx, + struct vpx_image *rawimg, + vpx_codec_pts_t pts, + int64_t duration, int deadline) { + vpx_codec_err_t res; + vpx_codec_iter_t iter; + const vpx_codec_cx_pkt_t *cx_pkt; + SvcInternal_t *const si = get_svc_internal(svc_ctx); + if (svc_ctx == NULL || codec_ctx == NULL || si == NULL) { + return VPX_CODEC_INVALID_PARAM; + } + + svc_log_reset(svc_ctx); + + res = vpx_codec_encode(codec_ctx, rawimg, pts, (uint32_t)duration, 0, + deadline); + if (res != VPX_CODEC_OK) { + return res; + } + // save compressed data + iter = NULL; + while ((cx_pkt = vpx_codec_get_cx_data(codec_ctx, &iter))) { + switch (cx_pkt->kind) { +#if VPX_ENCODER_ABI_VERSION > (5 + VPX_CODEC_ABI_VERSION) +#if CONFIG_SPATIAL_SVC + case VPX_CODEC_SPATIAL_SVC_LAYER_PSNR: { + int i; + for (i = 0; i < svc_ctx->spatial_layers; ++i) { + int j; + 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->psnr_pkt_received, i, + cx_pkt->data.layer_psnr[i].psnr[0], + cx_pkt->data.layer_psnr[i].psnr[1], + cx_pkt->data.layer_psnr[i].psnr[2], + cx_pkt->data.layer_psnr[i].psnr[3]); + 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->psnr_pkt_received, i, + cx_pkt->data.layer_psnr[i].sse[0], + cx_pkt->data.layer_psnr[i].sse[1], + cx_pkt->data.layer_psnr[i].sse[2], + cx_pkt->data.layer_psnr[i].sse[3]); + + for (j = 0; j < COMPONENTS; ++j) { + si->psnr_sum[i][j] += + cx_pkt->data.layer_psnr[i].psnr[j]; + si->sse_sum[i][j] += cx_pkt->data.layer_psnr[i].sse[j]; + } + } + ++si->psnr_pkt_received; + break; + } + case VPX_CODEC_SPATIAL_SVC_LAYER_SIZES: { + int i; + for (i = 0; i < svc_ctx->spatial_layers; ++i) + si->bytes_sum[i] += cx_pkt->data.layer_sizes[i]; + break; + } +#endif +#endif + default: { + break; + } + } + } + + return VPX_CODEC_OK; +} + +const char *vpx_svc_get_message(const SvcContext *svc_ctx) { + const SvcInternal_t *const si = get_const_svc_internal(svc_ctx); + if (svc_ctx == NULL || si == NULL) return NULL; + return si->message_buffer; +} + +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; + int i, j; + uint32_t bytes_total = 0; + double scale[COMPONENTS]; + double psnr[COMPONENTS]; + double mse[COMPONENTS]; + double y_scale; + + SvcInternal_t *const si = get_svc_internal(svc_ctx); + if (svc_ctx == NULL || si == NULL) return NULL; + + svc_log_reset(svc_ctx); + + number_of_frames = si->psnr_pkt_received; + if (number_of_frames <= 0) return vpx_svc_get_message(svc_ctx); + + svc_log(svc_ctx, SVC_LOG_INFO, "\n"); + for (i = 0; i < svc_ctx->spatial_layers; ++i) { + + 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 + si->psnr_pkt_received = 0; + + svc_log(svc_ctx, SVC_LOG_INFO, "Total Bytes=[%u]\n", bytes_total); + return vpx_svc_get_message(svc_ctx); +} + +void vpx_svc_release(SvcContext *svc_ctx) { + SvcInternal_t *si; + if (svc_ctx == NULL) return; + // do not use get_svc_internal as it will unnecessarily allocate an + // SvcInternal_t if it was not already allocated + si = (SvcInternal_t *)svc_ctx->internal; + if (si != NULL) { + free(si); + svc_ctx->internal = NULL; + } +} + |