diff options
Diffstat (limited to 'media/libvpx/libvpx/examples/vp9_spatial_svc_encoder.c')
| -rw-r--r-- | media/libvpx/libvpx/examples/vp9_spatial_svc_encoder.c | 1216 |
1 files changed, 1216 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/examples/vp9_spatial_svc_encoder.c b/media/libvpx/libvpx/examples/vp9_spatial_svc_encoder.c new file mode 100644 index 0000000000..998e4fb20d --- /dev/null +++ b/media/libvpx/libvpx/examples/vp9_spatial_svc_encoder.c @@ -0,0 +1,1216 @@ +/* + * Copyright (c) 2012 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 how to implement a multi-layer + * VP9 encoding scheme based on spatial scalability for video applications + * that benefit from a scalable bitstream. + */ + +#include <math.h> +#include <stdarg.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> + +#include "../args.h" +#include "../tools_common.h" +#include "../video_writer.h" + +#include "../vpx_ports/vpx_timer.h" +#include "./svc_context.h" +#include "vpx/vp8cx.h" +#include "vpx/vpx_encoder.h" +#include "../vpxstats.h" +#include "vp9/encoder/vp9_encoder.h" +#include "./y4minput.h" + +#define OUTPUT_FRAME_STATS 0 +#define OUTPUT_RC_STATS 1 + +#define SIMULCAST_MODE 0 + +static const arg_def_t outputfile = + ARG_DEF("o", "output", 1, "Output filename"); +static const arg_def_t skip_frames_arg = + ARG_DEF("s", "skip-frames", 1, "input frames to skip"); +static const arg_def_t frames_arg = + ARG_DEF("f", "frames", 1, "number of frames to encode"); +static const arg_def_t threads_arg = + ARG_DEF("th", "threads", 1, "number of threads to use"); +#if OUTPUT_RC_STATS +static const arg_def_t output_rc_stats_arg = + ARG_DEF("rcstat", "output_rc_stats", 1, "output rc stats"); +#endif +static const arg_def_t width_arg = ARG_DEF("w", "width", 1, "source width"); +static const arg_def_t height_arg = ARG_DEF("h", "height", 1, "source height"); +static const arg_def_t timebase_arg = + ARG_DEF("t", "timebase", 1, "timebase (num/den)"); +static const arg_def_t bitrate_arg = ARG_DEF( + "b", "target-bitrate", 1, "encoding bitrate, in kilobits per second"); +static const arg_def_t spatial_layers_arg = + ARG_DEF("sl", "spatial-layers", 1, "number of spatial SVC layers"); +static const arg_def_t temporal_layers_arg = + ARG_DEF("tl", "temporal-layers", 1, "number of temporal SVC layers"); +static const arg_def_t temporal_layering_mode_arg = + ARG_DEF("tlm", "temporal-layering-mode", 1, + "temporal layering scheme." + "VP9E_TEMPORAL_LAYERING_MODE"); +static const arg_def_t kf_dist_arg = + ARG_DEF("k", "kf-dist", 1, "number of frames between keyframes"); +static const arg_def_t scale_factors_arg = + ARG_DEF("r", "scale-factors", 1, "scale factors (lowest to highest layer)"); +static const arg_def_t min_q_arg = + ARG_DEF(NULL, "min-q", 1, "Minimum quantizer"); +static const arg_def_t max_q_arg = + ARG_DEF(NULL, "max-q", 1, "Maximum quantizer"); +static const arg_def_t min_bitrate_arg = + ARG_DEF(NULL, "min-bitrate", 1, "Minimum bitrate"); +static const arg_def_t max_bitrate_arg = + ARG_DEF(NULL, "max-bitrate", 1, "Maximum bitrate"); +static const arg_def_t lag_in_frame_arg = + ARG_DEF(NULL, "lag-in-frames", 1, + "Number of frame to input before " + "generating any outputs"); +static const arg_def_t rc_end_usage_arg = + ARG_DEF(NULL, "rc-end-usage", 1, "0 - 3: VBR, CBR, CQ, Q"); +static const arg_def_t speed_arg = + ARG_DEF("sp", "speed", 1, "speed configuration"); +static const arg_def_t aqmode_arg = + ARG_DEF("aq", "aqmode", 1, "aq-mode off/on"); +static const arg_def_t bitrates_arg = + ARG_DEF("bl", "bitrates", 1, "bitrates[sl * num_tl + tl]"); +static const arg_def_t dropframe_thresh_arg = + ARG_DEF(NULL, "drop-frame", 1, "Temporal resampling threshold (buf %)"); +static const struct arg_enum_list tune_content_enum[] = { + { "default", VP9E_CONTENT_DEFAULT }, + { "screen", VP9E_CONTENT_SCREEN }, + { "film", VP9E_CONTENT_FILM }, + { NULL, 0 } +}; + +static const arg_def_t tune_content_arg = ARG_DEF_ENUM( + NULL, "tune-content", 1, "Tune content type", tune_content_enum); +static const arg_def_t inter_layer_pred_arg = ARG_DEF( + NULL, "inter-layer-pred", 1, "0 - 3: On, Off, Key-frames, Constrained"); + +#if CONFIG_VP9_HIGHBITDEPTH +static const struct arg_enum_list bitdepth_enum[] = { + { "8", VPX_BITS_8 }, { "10", VPX_BITS_10 }, { "12", VPX_BITS_12 }, { NULL, 0 } +}; + +static const arg_def_t bitdepth_arg = ARG_DEF_ENUM( + "d", "bit-depth", 1, "Bit depth for codec 8, 10 or 12. ", bitdepth_enum); +#endif // CONFIG_VP9_HIGHBITDEPTH + +static const arg_def_t *svc_args[] = { &frames_arg, + &outputfile, + &width_arg, + &height_arg, + &timebase_arg, + &bitrate_arg, + &skip_frames_arg, + &spatial_layers_arg, + &kf_dist_arg, + &scale_factors_arg, + &min_q_arg, + &max_q_arg, + &min_bitrate_arg, + &max_bitrate_arg, + &temporal_layers_arg, + &temporal_layering_mode_arg, + &lag_in_frame_arg, + &threads_arg, + &aqmode_arg, +#if OUTPUT_RC_STATS + &output_rc_stats_arg, +#endif + +#if CONFIG_VP9_HIGHBITDEPTH + &bitdepth_arg, +#endif + &speed_arg, + &rc_end_usage_arg, + &bitrates_arg, + &dropframe_thresh_arg, + &tune_content_arg, + &inter_layer_pred_arg, + NULL }; + +static const uint32_t default_frames_to_skip = 0; +static const uint32_t default_frames_to_code = 60 * 60; +static const uint32_t default_width = 1920; +static const uint32_t default_height = 1080; +static const uint32_t default_timebase_num = 1; +static const uint32_t default_timebase_den = 60; +static const uint32_t default_bitrate = 1000; +static const uint32_t default_spatial_layers = 5; +static const uint32_t default_temporal_layers = 1; +static const uint32_t default_kf_dist = 100; +static const uint32_t default_temporal_layering_mode = 0; +static const uint32_t default_output_rc_stats = 0; +static const int32_t default_speed = -1; // -1 means use library default. +static const uint32_t default_threads = 0; // zero means use library default. + +typedef struct { + const char *output_filename; + uint32_t frames_to_code; + uint32_t frames_to_skip; + struct VpxInputContext input_ctx; + stats_io_t rc_stats; + int tune_content; + int inter_layer_pred; +} AppInput; + +static const char *exec_name; + +void usage_exit(void) { + fprintf(stderr, "Usage: %s <options> input_filename -o output_filename\n", + exec_name); + fprintf(stderr, "Options:\n"); + arg_show_usage(stderr, svc_args); + exit(EXIT_FAILURE); +} + +static void parse_command_line(int argc, const char **argv_, + AppInput *app_input, SvcContext *svc_ctx, + vpx_codec_enc_cfg_t *enc_cfg) { + struct arg arg; + char **argv = NULL; + char **argi = NULL; + char **argj = NULL; + vpx_codec_err_t res; + unsigned int min_bitrate = 0; + unsigned int max_bitrate = 0; + char string_options[1024] = { 0 }; + + // initialize SvcContext with parameters that will be passed to vpx_svc_init + svc_ctx->log_level = SVC_LOG_DEBUG; + svc_ctx->spatial_layers = default_spatial_layers; + svc_ctx->temporal_layers = default_temporal_layers; + svc_ctx->temporal_layering_mode = default_temporal_layering_mode; +#if OUTPUT_RC_STATS + svc_ctx->output_rc_stat = default_output_rc_stats; +#endif + svc_ctx->speed = default_speed; + svc_ctx->threads = default_threads; + + // start with default encoder configuration + res = vpx_codec_enc_config_default(vpx_codec_vp9_cx(), enc_cfg, 0); + if (res) { + die("Failed to get config: %s\n", vpx_codec_err_to_string(res)); + } + // update enc_cfg with app default values + enc_cfg->g_w = default_width; + enc_cfg->g_h = default_height; + enc_cfg->g_timebase.num = default_timebase_num; + enc_cfg->g_timebase.den = default_timebase_den; + enc_cfg->rc_target_bitrate = default_bitrate; + enc_cfg->kf_min_dist = default_kf_dist; + enc_cfg->kf_max_dist = default_kf_dist; + enc_cfg->rc_end_usage = VPX_CQ; + + // initialize AppInput with default values + app_input->frames_to_code = default_frames_to_code; + app_input->frames_to_skip = default_frames_to_skip; + + // process command line options + argv = argv_dup(argc - 1, argv_ + 1); + if (!argv) { + fprintf(stderr, "Error allocating argument list\n"); + exit(EXIT_FAILURE); + } + for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) { + arg.argv_step = 1; + + if (arg_match(&arg, &frames_arg, argi)) { + app_input->frames_to_code = arg_parse_uint(&arg); + } else if (arg_match(&arg, &outputfile, argi)) { + app_input->output_filename = arg.val; + } else if (arg_match(&arg, &width_arg, argi)) { + enc_cfg->g_w = arg_parse_uint(&arg); + } else if (arg_match(&arg, &height_arg, argi)) { + enc_cfg->g_h = arg_parse_uint(&arg); + } else if (arg_match(&arg, &timebase_arg, argi)) { + enc_cfg->g_timebase = arg_parse_rational(&arg); + } else if (arg_match(&arg, &bitrate_arg, argi)) { + enc_cfg->rc_target_bitrate = arg_parse_uint(&arg); + } else if (arg_match(&arg, &skip_frames_arg, argi)) { + app_input->frames_to_skip = arg_parse_uint(&arg); + } else if (arg_match(&arg, &spatial_layers_arg, argi)) { + svc_ctx->spatial_layers = arg_parse_uint(&arg); + } else if (arg_match(&arg, &temporal_layers_arg, argi)) { + svc_ctx->temporal_layers = arg_parse_uint(&arg); +#if OUTPUT_RC_STATS + } else if (arg_match(&arg, &output_rc_stats_arg, argi)) { + svc_ctx->output_rc_stat = arg_parse_uint(&arg); +#endif + } else if (arg_match(&arg, &speed_arg, argi)) { + svc_ctx->speed = arg_parse_uint(&arg); + if (svc_ctx->speed > 9) { + warn("Mapping speed %d to speed 9.\n", svc_ctx->speed); + } + } else if (arg_match(&arg, &aqmode_arg, argi)) { + svc_ctx->aqmode = arg_parse_uint(&arg); + } else if (arg_match(&arg, &threads_arg, argi)) { + svc_ctx->threads = arg_parse_uint(&arg); + } else if (arg_match(&arg, &temporal_layering_mode_arg, argi)) { + svc_ctx->temporal_layering_mode = enc_cfg->temporal_layering_mode = + arg_parse_int(&arg); + if (svc_ctx->temporal_layering_mode) { + enc_cfg->g_error_resilient = 1; + } + } else if (arg_match(&arg, &kf_dist_arg, argi)) { + enc_cfg->kf_min_dist = arg_parse_uint(&arg); + enc_cfg->kf_max_dist = enc_cfg->kf_min_dist; + } else if (arg_match(&arg, &scale_factors_arg, argi)) { + strncat(string_options, " scale-factors=", + sizeof(string_options) - strlen(string_options) - 1); + strncat(string_options, arg.val, + sizeof(string_options) - strlen(string_options) - 1); + } else if (arg_match(&arg, &bitrates_arg, argi)) { + strncat(string_options, " bitrates=", + sizeof(string_options) - strlen(string_options) - 1); + strncat(string_options, arg.val, + sizeof(string_options) - strlen(string_options) - 1); + } else if (arg_match(&arg, &min_q_arg, argi)) { + strncat(string_options, " min-quantizers=", + sizeof(string_options) - strlen(string_options) - 1); + strncat(string_options, arg.val, + sizeof(string_options) - strlen(string_options) - 1); + } else if (arg_match(&arg, &max_q_arg, argi)) { + strncat(string_options, " max-quantizers=", + sizeof(string_options) - strlen(string_options) - 1); + strncat(string_options, arg.val, + sizeof(string_options) - strlen(string_options) - 1); + } else if (arg_match(&arg, &min_bitrate_arg, argi)) { + min_bitrate = arg_parse_uint(&arg); + } else if (arg_match(&arg, &max_bitrate_arg, argi)) { + max_bitrate = arg_parse_uint(&arg); + } else if (arg_match(&arg, &lag_in_frame_arg, argi)) { + enc_cfg->g_lag_in_frames = arg_parse_uint(&arg); + } else if (arg_match(&arg, &rc_end_usage_arg, argi)) { + enc_cfg->rc_end_usage = arg_parse_uint(&arg); +#if CONFIG_VP9_HIGHBITDEPTH + } else if (arg_match(&arg, &bitdepth_arg, argi)) { + enc_cfg->g_bit_depth = arg_parse_enum_or_int(&arg); + switch (enc_cfg->g_bit_depth) { + case VPX_BITS_8: + enc_cfg->g_input_bit_depth = 8; + enc_cfg->g_profile = 0; + break; + case VPX_BITS_10: + enc_cfg->g_input_bit_depth = 10; + enc_cfg->g_profile = 2; + break; + case VPX_BITS_12: + enc_cfg->g_input_bit_depth = 12; + enc_cfg->g_profile = 2; + break; + default: + die("Error: Invalid bit depth selected (%d)\n", enc_cfg->g_bit_depth); + } +#endif // CONFIG_VP9_HIGHBITDEPTH + } else if (arg_match(&arg, &dropframe_thresh_arg, argi)) { + enc_cfg->rc_dropframe_thresh = arg_parse_uint(&arg); + } else if (arg_match(&arg, &tune_content_arg, argi)) { + app_input->tune_content = arg_parse_uint(&arg); + } else if (arg_match(&arg, &inter_layer_pred_arg, argi)) { + app_input->inter_layer_pred = arg_parse_uint(&arg); + } else { + ++argj; + } + } + + // There will be a space in front of the string options + if (strlen(string_options) > 0) + vpx_svc_set_options(svc_ctx, string_options + 1); + + enc_cfg->g_pass = VPX_RC_ONE_PASS; + + if (enc_cfg->rc_target_bitrate > 0) { + if (min_bitrate > 0) { + enc_cfg->rc_2pass_vbr_minsection_pct = + min_bitrate * 100 / enc_cfg->rc_target_bitrate; + } + if (max_bitrate > 0) { + enc_cfg->rc_2pass_vbr_maxsection_pct = + max_bitrate * 100 / enc_cfg->rc_target_bitrate; + } + } + + // Check for unrecognized options + for (argi = argv; *argi; ++argi) + if (argi[0][0] == '-' && strlen(argi[0]) > 1) + die("Error: Unrecognized option %s\n", *argi); + + if (argv[0] == NULL) { + usage_exit(); + } + app_input->input_ctx.filename = argv[0]; + free(argv); + + open_input_file(&app_input->input_ctx); + if (app_input->input_ctx.file_type == FILE_TYPE_Y4M) { + enc_cfg->g_w = app_input->input_ctx.width; + enc_cfg->g_h = app_input->input_ctx.height; + enc_cfg->g_timebase.den = app_input->input_ctx.framerate.numerator; + enc_cfg->g_timebase.num = app_input->input_ctx.framerate.denominator; + } + + if (enc_cfg->g_w < 16 || enc_cfg->g_w % 2 || enc_cfg->g_h < 16 || + enc_cfg->g_h % 2) + die("Invalid resolution: %d x %d\n", enc_cfg->g_w, enc_cfg->g_h); + + printf( + "Codec %s\nframes: %d, skip: %d\n" + "layers: %d\n" + "width %d, height: %d,\n" + "num: %d, den: %d, bitrate: %d,\n" + "gop size: %d\n", + vpx_codec_iface_name(vpx_codec_vp9_cx()), app_input->frames_to_code, + app_input->frames_to_skip, svc_ctx->spatial_layers, enc_cfg->g_w, + enc_cfg->g_h, enc_cfg->g_timebase.num, enc_cfg->g_timebase.den, + enc_cfg->rc_target_bitrate, enc_cfg->kf_max_dist); +} + +#if OUTPUT_RC_STATS +// For rate control encoding stats. +struct RateControlStats { + // Number of input frames per layer. + int layer_input_frames[VPX_MAX_LAYERS]; + // Total (cumulative) number of encoded frames per layer. + int layer_tot_enc_frames[VPX_MAX_LAYERS]; + // Number of encoded non-key frames per layer. + int layer_enc_frames[VPX_MAX_LAYERS]; + // Framerate per layer (cumulative). + double layer_framerate[VPX_MAX_LAYERS]; + // Target average frame size per layer (per-frame-bandwidth per layer). + double layer_pfb[VPX_MAX_LAYERS]; + // Actual average frame size per layer. + double layer_avg_frame_size[VPX_MAX_LAYERS]; + // Average rate mismatch per layer (|target - actual| / target). + double layer_avg_rate_mismatch[VPX_MAX_LAYERS]; + // Actual encoding bitrate per layer (cumulative). + double layer_encoding_bitrate[VPX_MAX_LAYERS]; + // Average of the short-time encoder actual bitrate. + // TODO(marpan): Should we add these short-time stats for each layer? + double avg_st_encoding_bitrate; + // Variance of the short-time encoder actual bitrate. + double variance_st_encoding_bitrate; + // Window (number of frames) for computing short-time encoding bitrate. + int window_size; + // Number of window measurements. + int window_count; +}; + +// Note: these rate control stats assume only 1 key frame in the +// sequence (i.e., first frame only). +static void set_rate_control_stats(struct RateControlStats *rc, + vpx_codec_enc_cfg_t *cfg) { + unsigned int sl, tl; + // Set the layer (cumulative) framerate and the target layer (non-cumulative) + // per-frame-bandwidth, for the rate control encoding stats below. + const double framerate = cfg->g_timebase.den / cfg->g_timebase.num; + + for (sl = 0; sl < cfg->ss_number_layers; ++sl) { + for (tl = 0; tl < cfg->ts_number_layers; ++tl) { + const int layer = sl * cfg->ts_number_layers + tl; + if (cfg->ts_number_layers == 1) + rc->layer_framerate[layer] = framerate; + else + rc->layer_framerate[layer] = framerate / cfg->ts_rate_decimator[tl]; + if (tl > 0) { + rc->layer_pfb[layer] = + 1000.0 * + (cfg->layer_target_bitrate[layer] - + cfg->layer_target_bitrate[layer - 1]) / + (rc->layer_framerate[layer] - rc->layer_framerate[layer - 1]); + } else { + rc->layer_pfb[layer] = 1000.0 * cfg->layer_target_bitrate[layer] / + rc->layer_framerate[layer]; + } + rc->layer_input_frames[layer] = 0; + rc->layer_enc_frames[layer] = 0; + rc->layer_tot_enc_frames[layer] = 0; + rc->layer_encoding_bitrate[layer] = 0.0; + rc->layer_avg_frame_size[layer] = 0.0; + rc->layer_avg_rate_mismatch[layer] = 0.0; + } + } + rc->window_count = 0; + rc->window_size = 15; + rc->avg_st_encoding_bitrate = 0.0; + rc->variance_st_encoding_bitrate = 0.0; +} + +static void printout_rate_control_summary(struct RateControlStats *rc, + vpx_codec_enc_cfg_t *cfg, + int frame_cnt) { + unsigned int sl, tl; + double perc_fluctuation = 0.0; + int tot_num_frames = 0; + printf("Total number of processed frames: %d\n\n", frame_cnt - 1); + printf("Rate control layer stats for sl%d tl%d layer(s):\n\n", + cfg->ss_number_layers, cfg->ts_number_layers); + for (sl = 0; sl < cfg->ss_number_layers; ++sl) { + tot_num_frames = 0; + for (tl = 0; tl < cfg->ts_number_layers; ++tl) { + const int layer = sl * cfg->ts_number_layers + tl; + const int num_dropped = + (tl > 0) + ? (rc->layer_input_frames[layer] - rc->layer_enc_frames[layer]) + : (rc->layer_input_frames[layer] - rc->layer_enc_frames[layer] - + 1); + tot_num_frames += rc->layer_input_frames[layer]; + rc->layer_encoding_bitrate[layer] = 0.001 * rc->layer_framerate[layer] * + rc->layer_encoding_bitrate[layer] / + tot_num_frames; + rc->layer_avg_frame_size[layer] = + rc->layer_avg_frame_size[layer] / rc->layer_enc_frames[layer]; + rc->layer_avg_rate_mismatch[layer] = 100.0 * + rc->layer_avg_rate_mismatch[layer] / + rc->layer_enc_frames[layer]; + printf("For layer#: sl%d tl%d \n", sl, tl); + printf("Bitrate (target vs actual): %d %f.0 kbps\n", + cfg->layer_target_bitrate[layer], + rc->layer_encoding_bitrate[layer]); + printf("Average frame size (target vs actual): %f %f bits\n", + rc->layer_pfb[layer], rc->layer_avg_frame_size[layer]); + printf("Average rate_mismatch: %f\n", rc->layer_avg_rate_mismatch[layer]); + printf( + "Number of input frames, encoded (non-key) frames, " + "and percent dropped frames: %d %d %f.0 \n", + rc->layer_input_frames[layer], rc->layer_enc_frames[layer], + 100.0 * num_dropped / rc->layer_input_frames[layer]); + printf("\n"); + } + } + rc->avg_st_encoding_bitrate = rc->avg_st_encoding_bitrate / rc->window_count; + rc->variance_st_encoding_bitrate = + rc->variance_st_encoding_bitrate / rc->window_count - + (rc->avg_st_encoding_bitrate * rc->avg_st_encoding_bitrate); + perc_fluctuation = 100.0 * sqrt(rc->variance_st_encoding_bitrate) / + rc->avg_st_encoding_bitrate; + printf("Short-time stats, for window of %d frames: \n", rc->window_size); + printf("Average, rms-variance, and percent-fluct: %f %f %f \n", + rc->avg_st_encoding_bitrate, sqrt(rc->variance_st_encoding_bitrate), + perc_fluctuation); + printf("Num of input, num of encoded (super) frames: %d %d \n", frame_cnt, + tot_num_frames); +} + +static vpx_codec_err_t parse_superframe_index(const uint8_t *data, + size_t data_sz, uint64_t sizes[8], + int *count) { + // A chunk ending with a byte matching 0xc0 is an invalid chunk unless + // it is a super frame index. If the last byte of real video compression + // data is 0xc0 the encoder must add a 0 byte. If we have the marker but + // not the associated matching marker byte at the front of the index we have + // an invalid bitstream and need to return an error. + + uint8_t marker; + + marker = *(data + data_sz - 1); + *count = 0; + + if ((marker & 0xe0) == 0xc0) { + const uint32_t frames = (marker & 0x7) + 1; + const uint32_t mag = ((marker >> 3) & 0x3) + 1; + const size_t index_sz = 2 + mag * frames; + + // This chunk is marked as having a superframe index but doesn't have + // enough data for it, thus it's an invalid superframe index. + if (data_sz < index_sz) return VPX_CODEC_CORRUPT_FRAME; + + { + const uint8_t marker2 = *(data + data_sz - index_sz); + + // This chunk is marked as having a superframe index but doesn't have + // the matching marker byte at the front of the index therefore it's an + // invalid chunk. + if (marker != marker2) return VPX_CODEC_CORRUPT_FRAME; + } + + { + // Found a valid superframe index. + uint32_t i, j; + const uint8_t *x = &data[data_sz - index_sz + 1]; + + for (i = 0; i < frames; ++i) { + uint32_t this_sz = 0; + + for (j = 0; j < mag; ++j) this_sz |= (*x++) << (j * 8); + sizes[i] = this_sz; + } + *count = frames; + } + } + return VPX_CODEC_OK; +} +#endif + +// Example pattern for spatial layers and 2 temporal layers used in the +// bypass/flexible mode. The pattern corresponds to the pattern +// VP9E_TEMPORAL_LAYERING_MODE_0101 (temporal_layering_mode == 2) used in +// non-flexible mode. +static void set_frame_flags_bypass_mode_ex0( + int tl, int num_spatial_layers, int is_key_frame, + vpx_svc_ref_frame_config_t *ref_frame_config) { + int sl; + for (sl = 0; sl < num_spatial_layers; ++sl) + ref_frame_config->update_buffer_slot[sl] = 0; + + for (sl = 0; sl < num_spatial_layers; ++sl) { + // Set the buffer idx. + if (tl == 0) { + ref_frame_config->lst_fb_idx[sl] = sl; + if (sl) { + if (is_key_frame) { + ref_frame_config->lst_fb_idx[sl] = sl - 1; + ref_frame_config->gld_fb_idx[sl] = sl; + } else { + ref_frame_config->gld_fb_idx[sl] = sl - 1; + } + } else { + ref_frame_config->gld_fb_idx[sl] = 0; + } + ref_frame_config->alt_fb_idx[sl] = 0; + } else if (tl == 1) { + ref_frame_config->lst_fb_idx[sl] = sl; + ref_frame_config->gld_fb_idx[sl] = + (sl == 0) ? 0 : num_spatial_layers + sl - 1; + ref_frame_config->alt_fb_idx[sl] = num_spatial_layers + sl; + } + // Set the reference and update flags. + if (!tl) { + if (!sl) { + // Base spatial and base temporal (sl = 0, tl = 0) + ref_frame_config->reference_last[sl] = 1; + ref_frame_config->reference_golden[sl] = 0; + ref_frame_config->reference_alt_ref[sl] = 0; + ref_frame_config->update_buffer_slot[sl] |= + 1 << ref_frame_config->lst_fb_idx[sl]; + } else { + if (is_key_frame) { + ref_frame_config->reference_last[sl] = 1; + ref_frame_config->reference_golden[sl] = 0; + ref_frame_config->reference_alt_ref[sl] = 0; + ref_frame_config->update_buffer_slot[sl] |= + 1 << ref_frame_config->gld_fb_idx[sl]; + } else { + // Non-zero spatiall layer. + ref_frame_config->reference_last[sl] = 1; + ref_frame_config->reference_golden[sl] = 1; + ref_frame_config->reference_alt_ref[sl] = 1; + ref_frame_config->update_buffer_slot[sl] |= + 1 << ref_frame_config->lst_fb_idx[sl]; + } + } + } else if (tl == 1) { + if (!sl) { + // Base spatial and top temporal (tl = 1) + ref_frame_config->reference_last[sl] = 1; + ref_frame_config->reference_golden[sl] = 0; + ref_frame_config->reference_alt_ref[sl] = 0; + ref_frame_config->update_buffer_slot[sl] |= + 1 << ref_frame_config->alt_fb_idx[sl]; + } else { + // Non-zero spatial. + if (sl < num_spatial_layers - 1) { + ref_frame_config->reference_last[sl] = 1; + ref_frame_config->reference_golden[sl] = 1; + ref_frame_config->reference_alt_ref[sl] = 0; + ref_frame_config->update_buffer_slot[sl] |= + 1 << ref_frame_config->alt_fb_idx[sl]; + } else if (sl == num_spatial_layers - 1) { + // Top spatial and top temporal (non-reference -- doesn't update any + // reference buffers) + ref_frame_config->reference_last[sl] = 1; + ref_frame_config->reference_golden[sl] = 1; + ref_frame_config->reference_alt_ref[sl] = 0; + } + } + } + } +} + +// Example pattern for 2 spatial layers and 2 temporal layers used in the +// bypass/flexible mode, except only 1 spatial layer when temporal_layer_id = 1. +static void set_frame_flags_bypass_mode_ex1( + int tl, int num_spatial_layers, int is_key_frame, + vpx_svc_ref_frame_config_t *ref_frame_config) { + int sl; + for (sl = 0; sl < num_spatial_layers; ++sl) + ref_frame_config->update_buffer_slot[sl] = 0; + + if (tl == 0) { + if (is_key_frame) { + ref_frame_config->lst_fb_idx[1] = 0; + ref_frame_config->gld_fb_idx[1] = 1; + } else { + ref_frame_config->lst_fb_idx[1] = 1; + ref_frame_config->gld_fb_idx[1] = 0; + } + ref_frame_config->alt_fb_idx[1] = 0; + + ref_frame_config->lst_fb_idx[0] = 0; + ref_frame_config->gld_fb_idx[0] = 0; + ref_frame_config->alt_fb_idx[0] = 0; + } + if (tl == 1) { + ref_frame_config->lst_fb_idx[0] = 0; + ref_frame_config->gld_fb_idx[0] = 1; + ref_frame_config->alt_fb_idx[0] = 2; + + ref_frame_config->lst_fb_idx[1] = 1; + ref_frame_config->gld_fb_idx[1] = 2; + ref_frame_config->alt_fb_idx[1] = 3; + } + // Set the reference and update flags. + if (tl == 0) { + // Base spatial and base temporal (sl = 0, tl = 0) + ref_frame_config->reference_last[0] = 1; + ref_frame_config->reference_golden[0] = 0; + ref_frame_config->reference_alt_ref[0] = 0; + ref_frame_config->update_buffer_slot[0] |= + 1 << ref_frame_config->lst_fb_idx[0]; + + if (is_key_frame) { + ref_frame_config->reference_last[1] = 1; + ref_frame_config->reference_golden[1] = 0; + ref_frame_config->reference_alt_ref[1] = 0; + ref_frame_config->update_buffer_slot[1] |= + 1 << ref_frame_config->gld_fb_idx[1]; + } else { + // Non-zero spatiall layer. + ref_frame_config->reference_last[1] = 1; + ref_frame_config->reference_golden[1] = 1; + ref_frame_config->reference_alt_ref[1] = 1; + ref_frame_config->update_buffer_slot[1] |= + 1 << ref_frame_config->lst_fb_idx[1]; + } + } + if (tl == 1) { + // Top spatial and top temporal (non-reference -- doesn't update any + // reference buffers) + ref_frame_config->reference_last[1] = 1; + ref_frame_config->reference_golden[1] = 0; + ref_frame_config->reference_alt_ref[1] = 0; + } +} + +#if CONFIG_VP9_DECODER && !SIMULCAST_MODE +static void test_decode(vpx_codec_ctx_t *encoder, vpx_codec_ctx_t *decoder, + const int frames_out, int *mismatch_seen) { + vpx_image_t enc_img, dec_img; + struct vp9_ref_frame ref_enc, ref_dec; + if (*mismatch_seen) return; + /* Get the internal reference frame */ + ref_enc.idx = 0; + ref_dec.idx = 0; + vpx_codec_control(encoder, VP9_GET_REFERENCE, &ref_enc); + enc_img = ref_enc.img; + vpx_codec_control(decoder, VP9_GET_REFERENCE, &ref_dec); + dec_img = ref_dec.img; +#if CONFIG_VP9_HIGHBITDEPTH + if ((enc_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) != + (dec_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH)) { + if (enc_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) { + vpx_img_alloc(&enc_img, enc_img.fmt - VPX_IMG_FMT_HIGHBITDEPTH, + enc_img.d_w, enc_img.d_h, 16); + vpx_img_truncate_16_to_8(&enc_img, &ref_enc.img); + } + if (dec_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) { + vpx_img_alloc(&dec_img, dec_img.fmt - VPX_IMG_FMT_HIGHBITDEPTH, + dec_img.d_w, dec_img.d_h, 16); + vpx_img_truncate_16_to_8(&dec_img, &ref_dec.img); + } + } +#endif + + if (!compare_img(&enc_img, &dec_img)) { + int y[4], u[4], v[4]; +#if CONFIG_VP9_HIGHBITDEPTH + if (enc_img.fmt & VPX_IMG_FMT_HIGHBITDEPTH) { + find_mismatch_high(&enc_img, &dec_img, y, u, v); + } else { + find_mismatch(&enc_img, &dec_img, y, u, v); + } +#else + find_mismatch(&enc_img, &dec_img, y, u, v); +#endif + decoder->err = 1; + printf( + "Encode/decode mismatch on frame %d at" + " Y[%d, %d] {%d/%d}," + " U[%d, %d] {%d/%d}," + " V[%d, %d] {%d/%d}\n", + frames_out, y[0], y[1], y[2], y[3], u[0], u[1], u[2], u[3], v[0], v[1], + v[2], v[3]); + *mismatch_seen = frames_out; + } + + vpx_img_free(&enc_img); + vpx_img_free(&dec_img); +} +#endif + +#if OUTPUT_RC_STATS +static void svc_output_rc_stats( + vpx_codec_ctx_t *codec, vpx_codec_enc_cfg_t *enc_cfg, + vpx_svc_layer_id_t *layer_id, const vpx_codec_cx_pkt_t *cx_pkt, + struct RateControlStats *rc, VpxVideoWriter **outfile, + const uint32_t frame_cnt, const double framerate) { + int num_layers_encoded = 0; + unsigned int sl, tl; + uint64_t sizes[8]; + uint64_t sizes_parsed[8]; + int count = 0; + double sum_bitrate = 0.0; + double sum_bitrate2 = 0.0; + vp9_zero(sizes); + vp9_zero(sizes_parsed); + vpx_codec_control(codec, VP9E_GET_SVC_LAYER_ID, layer_id); + parse_superframe_index(cx_pkt->data.frame.buf, cx_pkt->data.frame.sz, + sizes_parsed, &count); + if (enc_cfg->ss_number_layers == 1) { + sizes[0] = cx_pkt->data.frame.sz; + } else { + for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) { + sizes[sl] = 0; + if (cx_pkt->data.frame.spatial_layer_encoded[sl]) { + sizes[sl] = sizes_parsed[num_layers_encoded]; + num_layers_encoded++; + } + } + } + for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) { + unsigned int sl2; + uint64_t tot_size = 0; +#if SIMULCAST_MODE + for (sl2 = 0; sl2 < sl; ++sl2) { + if (cx_pkt->data.frame.spatial_layer_encoded[sl2]) tot_size += sizes[sl2]; + } + vpx_video_writer_write_frame(outfile[sl], + (uint8_t *)(cx_pkt->data.frame.buf) + tot_size, + (size_t)(sizes[sl]), cx_pkt->data.frame.pts); +#else + for (sl2 = 0; sl2 <= sl; ++sl2) { + if (cx_pkt->data.frame.spatial_layer_encoded[sl2]) tot_size += sizes[sl2]; + } + if (tot_size > 0) + vpx_video_writer_write_frame(outfile[sl], cx_pkt->data.frame.buf, + (size_t)(tot_size), cx_pkt->data.frame.pts); +#endif // SIMULCAST_MODE + } + for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) { + if (cx_pkt->data.frame.spatial_layer_encoded[sl]) { + for (tl = layer_id->temporal_layer_id; tl < enc_cfg->ts_number_layers; + ++tl) { + const int layer = sl * enc_cfg->ts_number_layers + tl; + ++rc->layer_tot_enc_frames[layer]; + rc->layer_encoding_bitrate[layer] += 8.0 * sizes[sl]; + // Keep count of rate control stats per layer, for non-key + // frames. + if (tl == (unsigned int)layer_id->temporal_layer_id && + !(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY)) { + rc->layer_avg_frame_size[layer] += 8.0 * sizes[sl]; + rc->layer_avg_rate_mismatch[layer] += + fabs(8.0 * sizes[sl] - rc->layer_pfb[layer]) / + rc->layer_pfb[layer]; + ++rc->layer_enc_frames[layer]; + } + } + } + } + + // Update for short-time encoding bitrate states, for moving + // window of size rc->window, shifted by rc->window / 2. + // Ignore first window segment, due to key frame. + if (frame_cnt > (unsigned int)rc->window_size) { + for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) { + if (cx_pkt->data.frame.spatial_layer_encoded[sl]) + sum_bitrate += 0.001 * 8.0 * sizes[sl] * framerate; + } + if (frame_cnt % rc->window_size == 0) { + rc->window_count += 1; + rc->avg_st_encoding_bitrate += sum_bitrate / rc->window_size; + rc->variance_st_encoding_bitrate += + (sum_bitrate / rc->window_size) * (sum_bitrate / rc->window_size); + } + } + + // Second shifted window. + if (frame_cnt > (unsigned int)(rc->window_size + rc->window_size / 2)) { + for (sl = 0; sl < enc_cfg->ss_number_layers; ++sl) { + sum_bitrate2 += 0.001 * 8.0 * sizes[sl] * framerate; + } + + if (frame_cnt > (unsigned int)(2 * rc->window_size) && + frame_cnt % rc->window_size == 0) { + rc->window_count += 1; + rc->avg_st_encoding_bitrate += sum_bitrate2 / rc->window_size; + rc->variance_st_encoding_bitrate += + (sum_bitrate2 / rc->window_size) * (sum_bitrate2 / rc->window_size); + } + } +} +#endif + +int main(int argc, const char **argv) { + AppInput app_input; + VpxVideoWriter *writer = NULL; + VpxVideoInfo info; + vpx_codec_ctx_t encoder; + vpx_codec_enc_cfg_t enc_cfg; + SvcContext svc_ctx; + vpx_svc_frame_drop_t svc_drop_frame; + uint32_t i; + uint32_t frame_cnt = 0; + vpx_image_t raw; + vpx_codec_err_t res; + int pts = 0; /* PTS starts at 0 */ + int frame_duration = 1; /* 1 timebase tick per frame */ + int end_of_stream = 0; +#if OUTPUT_FRAME_STATS + int frames_received = 0; +#endif +#if OUTPUT_RC_STATS + VpxVideoWriter *outfile[VPX_SS_MAX_LAYERS] = { NULL }; + struct RateControlStats rc; + vpx_svc_layer_id_t layer_id; + vpx_svc_ref_frame_config_t ref_frame_config; + unsigned int sl; + double framerate = 30.0; +#endif + struct vpx_usec_timer timer; + int64_t cx_time = 0; +#if CONFIG_INTERNAL_STATS + FILE *f = fopen("opsnr.stt", "a"); +#endif +#if CONFIG_VP9_DECODER && !SIMULCAST_MODE + int mismatch_seen = 0; + vpx_codec_ctx_t decoder; +#endif + memset(&svc_ctx, 0, sizeof(svc_ctx)); + memset(&app_input, 0, sizeof(AppInput)); + memset(&info, 0, sizeof(VpxVideoInfo)); + memset(&layer_id, 0, sizeof(vpx_svc_layer_id_t)); + memset(&rc, 0, sizeof(struct RateControlStats)); + exec_name = argv[0]; + + /* Setup default input stream settings */ + app_input.input_ctx.framerate.numerator = 30; + app_input.input_ctx.framerate.denominator = 1; + app_input.input_ctx.only_i420 = 1; + app_input.input_ctx.bit_depth = 0; + + parse_command_line(argc, argv, &app_input, &svc_ctx, &enc_cfg); + + // Y4M reader handles its own allocation. + if (app_input.input_ctx.file_type != FILE_TYPE_Y4M) { +// Allocate image buffer +#if CONFIG_VP9_HIGHBITDEPTH + if (!vpx_img_alloc(&raw, + enc_cfg.g_input_bit_depth == 8 ? VPX_IMG_FMT_I420 + : VPX_IMG_FMT_I42016, + enc_cfg.g_w, enc_cfg.g_h, 32)) { + die("Failed to allocate image %dx%d\n", enc_cfg.g_w, enc_cfg.g_h); + } +#else + if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, enc_cfg.g_w, enc_cfg.g_h, 32)) { + die("Failed to allocate image %dx%d\n", enc_cfg.g_w, enc_cfg.g_h); + } +#endif // CONFIG_VP9_HIGHBITDEPTH + } + + // Initialize codec + if (vpx_svc_init(&svc_ctx, &encoder, vpx_codec_vp9_cx(), &enc_cfg) != + VPX_CODEC_OK) + die("Failed to initialize encoder\n"); +#if CONFIG_VP9_DECODER && !SIMULCAST_MODE + if (vpx_codec_dec_init( + &decoder, get_vpx_decoder_by_name("vp9")->codec_interface(), NULL, 0)) + die("Failed to initialize decoder\n"); +#endif + +#if OUTPUT_RC_STATS + rc.window_count = 1; + rc.window_size = 15; // Silence a static analysis warning. + rc.avg_st_encoding_bitrate = 0.0; + rc.variance_st_encoding_bitrate = 0.0; + if (svc_ctx.output_rc_stat) { + set_rate_control_stats(&rc, &enc_cfg); + framerate = enc_cfg.g_timebase.den / enc_cfg.g_timebase.num; + } +#endif + + info.codec_fourcc = VP9_FOURCC; + info.frame_width = enc_cfg.g_w; + info.frame_height = enc_cfg.g_h; + info.time_base.numerator = enc_cfg.g_timebase.num; + info.time_base.denominator = enc_cfg.g_timebase.den; + + writer = + vpx_video_writer_open(app_input.output_filename, kContainerIVF, &info); + if (!writer) + die("Failed to open %s for writing\n", app_input.output_filename); + +#if OUTPUT_RC_STATS + // Write out spatial layer stream. + // TODO(marpan/jianj): allow for writing each spatial and temporal stream. + if (svc_ctx.output_rc_stat) { + for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) { + char file_name[PATH_MAX]; + + snprintf(file_name, sizeof(file_name), "%s_s%d.ivf", + app_input.output_filename, sl); + outfile[sl] = vpx_video_writer_open(file_name, kContainerIVF, &info); + if (!outfile[sl]) die("Failed to open %s for writing", file_name); + } + } +#endif + + // skip initial frames + for (i = 0; i < app_input.frames_to_skip; ++i) + read_frame(&app_input.input_ctx, &raw); + + if (svc_ctx.speed != -1) + vpx_codec_control(&encoder, VP8E_SET_CPUUSED, svc_ctx.speed); + if (svc_ctx.threads) { + vpx_codec_control(&encoder, VP9E_SET_TILE_COLUMNS, + get_msb(svc_ctx.threads)); + if (svc_ctx.threads > 1) + vpx_codec_control(&encoder, VP9E_SET_ROW_MT, 1); + else + vpx_codec_control(&encoder, VP9E_SET_ROW_MT, 0); + } + if (svc_ctx.speed >= 5 && svc_ctx.aqmode == 1) + vpx_codec_control(&encoder, VP9E_SET_AQ_MODE, 3); + if (svc_ctx.speed >= 5) + vpx_codec_control(&encoder, VP8E_SET_STATIC_THRESHOLD, 1); + vpx_codec_control(&encoder, VP8E_SET_MAX_INTRA_BITRATE_PCT, 900); + + vpx_codec_control(&encoder, VP9E_SET_SVC_INTER_LAYER_PRED, + app_input.inter_layer_pred); + + vpx_codec_control(&encoder, VP9E_SET_NOISE_SENSITIVITY, 0); + + vpx_codec_control(&encoder, VP9E_SET_TUNE_CONTENT, app_input.tune_content); + + vpx_codec_control(&encoder, VP9E_SET_DISABLE_OVERSHOOT_MAXQ_CBR, 0); + vpx_codec_control(&encoder, VP9E_SET_DISABLE_LOOPFILTER, 0); + + svc_drop_frame.framedrop_mode = FULL_SUPERFRAME_DROP; + for (sl = 0; sl < (unsigned int)svc_ctx.spatial_layers; ++sl) + svc_drop_frame.framedrop_thresh[sl] = enc_cfg.rc_dropframe_thresh; + svc_drop_frame.max_consec_drop = INT_MAX; + vpx_codec_control(&encoder, VP9E_SET_SVC_FRAME_DROP_LAYER, &svc_drop_frame); + + // Encode frames + while (!end_of_stream) { + vpx_codec_iter_t iter = NULL; + const vpx_codec_cx_pkt_t *cx_pkt; + // Example patterns for bypass/flexible mode: + // example_pattern = 0: 2 temporal layers, and spatial_layers = 1,2,3. Exact + // to fixed SVC patterns. example_pattern = 1: 2 spatial and 2 temporal + // layers, with SL0 only has TL0, and SL1 has both TL0 and TL1. This example + // uses the extended API. + int example_pattern = 0; + if (frame_cnt >= app_input.frames_to_code || + !read_frame(&app_input.input_ctx, &raw)) { + // We need one extra vpx_svc_encode call at end of stream to flush + // encoder and get remaining data + end_of_stream = 1; + } + + // For BYPASS/FLEXIBLE mode, set the frame flags (reference and updates) + // and the buffer indices for each spatial layer of the current + // (super)frame to be encoded. The spatial and temporal layer_id for the + // current frame also needs to be set. + // TODO(marpan): Should rename the "VP9E_TEMPORAL_LAYERING_MODE_BYPASS" + // mode to "VP9E_LAYERING_MODE_BYPASS". + if (svc_ctx.temporal_layering_mode == VP9E_TEMPORAL_LAYERING_MODE_BYPASS) { + layer_id.spatial_layer_id = 0; + // Example for 2 temporal layers. + if (frame_cnt % 2 == 0) { + layer_id.temporal_layer_id = 0; + for (i = 0; i < VPX_SS_MAX_LAYERS; i++) + layer_id.temporal_layer_id_per_spatial[i] = 0; + } else { + layer_id.temporal_layer_id = 1; + for (i = 0; i < VPX_SS_MAX_LAYERS; i++) + layer_id.temporal_layer_id_per_spatial[i] = 1; + } + if (example_pattern == 1) { + // example_pattern 1 is hard-coded for 2 spatial and 2 temporal layers. + assert(svc_ctx.spatial_layers == 2); + assert(svc_ctx.temporal_layers == 2); + if (frame_cnt % 2 == 0) { + // Spatial layer 0 and 1 are encoded. + layer_id.temporal_layer_id_per_spatial[0] = 0; + layer_id.temporal_layer_id_per_spatial[1] = 0; + layer_id.spatial_layer_id = 0; + } else { + // Only spatial layer 1 is encoded here. + layer_id.temporal_layer_id_per_spatial[1] = 1; + layer_id.spatial_layer_id = 1; + } + } + vpx_codec_control(&encoder, VP9E_SET_SVC_LAYER_ID, &layer_id); + // TODO(jianj): Fix the parameter passing for "is_key_frame" in + // set_frame_flags_bypass_model() for case of periodic key frames. + if (example_pattern == 0) { + set_frame_flags_bypass_mode_ex0(layer_id.temporal_layer_id, + svc_ctx.spatial_layers, frame_cnt == 0, + &ref_frame_config); + } else if (example_pattern == 1) { + set_frame_flags_bypass_mode_ex1(layer_id.temporal_layer_id, + svc_ctx.spatial_layers, frame_cnt == 0, + &ref_frame_config); + } + ref_frame_config.duration[0] = frame_duration * 1; + ref_frame_config.duration[1] = frame_duration * 1; + + vpx_codec_control(&encoder, VP9E_SET_SVC_REF_FRAME_CONFIG, + &ref_frame_config); + // Keep track of input frames, to account for frame drops in rate control + // stats/metrics. + for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) { + ++rc.layer_input_frames[sl * enc_cfg.ts_number_layers + + layer_id.temporal_layer_id]; + } + } else { + // For the fixed pattern SVC, temporal layer is given by superframe count. + unsigned int tl = 0; + if (enc_cfg.ts_number_layers == 2) + tl = (frame_cnt % 2 != 0); + else if (enc_cfg.ts_number_layers == 3) { + if (frame_cnt % 2 != 0) tl = 2; + if ((frame_cnt > 1) && ((frame_cnt - 2) % 4 == 0)) tl = 1; + } + for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) + ++rc.layer_input_frames[sl * enc_cfg.ts_number_layers + tl]; + } + + vpx_usec_timer_start(&timer); + res = vpx_svc_encode( + &svc_ctx, &encoder, (end_of_stream ? NULL : &raw), pts, frame_duration, + svc_ctx.speed >= 5 ? VPX_DL_REALTIME : VPX_DL_GOOD_QUALITY); + vpx_usec_timer_mark(&timer); + cx_time += vpx_usec_timer_elapsed(&timer); + + fflush(stdout); + if (res != VPX_CODEC_OK) { + die_codec(&encoder, "Failed to encode frame"); + } + + while ((cx_pkt = vpx_codec_get_cx_data(&encoder, &iter)) != NULL) { + switch (cx_pkt->kind) { + case VPX_CODEC_CX_FRAME_PKT: { + SvcInternal_t *const si = (SvcInternal_t *)svc_ctx.internal; + if (cx_pkt->data.frame.sz > 0) { + vpx_video_writer_write_frame(writer, cx_pkt->data.frame.buf, + cx_pkt->data.frame.sz, + cx_pkt->data.frame.pts); +#if OUTPUT_RC_STATS + if (svc_ctx.output_rc_stat) { + svc_output_rc_stats(&encoder, &enc_cfg, &layer_id, cx_pkt, &rc, + outfile, frame_cnt, framerate); + } +#endif + } +#if OUTPUT_FRAME_STATS + printf("SVC frame: %d, kf: %d, size: %d, pts: %d\n", frames_received, + !!(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY), + (int)cx_pkt->data.frame.sz, (int)cx_pkt->data.frame.pts); + ++frames_received; +#endif + if (enc_cfg.ss_number_layers == 1 && enc_cfg.ts_number_layers == 1) + si->bytes_sum[0] += (int)cx_pkt->data.frame.sz; +#if CONFIG_VP9_DECODER && !SIMULCAST_MODE + if (vpx_codec_decode(&decoder, cx_pkt->data.frame.buf, + (unsigned int)cx_pkt->data.frame.sz, NULL, 0)) + die_codec(&decoder, "Failed to decode frame."); +#endif + break; + } + case VPX_CODEC_STATS_PKT: { + stats_write(&app_input.rc_stats, cx_pkt->data.twopass_stats.buf, + cx_pkt->data.twopass_stats.sz); + break; + } + default: { + break; + } + } + +#if CONFIG_VP9_DECODER && !SIMULCAST_MODE + vpx_codec_control(&encoder, VP9E_GET_SVC_LAYER_ID, &layer_id); + // Don't look for mismatch on top spatial and top temporal layers as they + // are non reference frames. + if ((enc_cfg.ss_number_layers > 1 || enc_cfg.ts_number_layers > 1) && + !(layer_id.temporal_layer_id > 0 && + layer_id.temporal_layer_id == (int)enc_cfg.ts_number_layers - 1 && + cx_pkt->data.frame + .spatial_layer_encoded[enc_cfg.ss_number_layers - 1])) { + test_decode(&encoder, &decoder, frame_cnt, &mismatch_seen); + } +#endif + } + + if (!end_of_stream) { + ++frame_cnt; + pts += frame_duration; + } + } + + printf("Processed %d frames\n", frame_cnt); + + close_input_file(&app_input.input_ctx); + +#if OUTPUT_RC_STATS + if (svc_ctx.output_rc_stat) { + printout_rate_control_summary(&rc, &enc_cfg, frame_cnt); + printf("\n"); + } +#endif + if (vpx_codec_destroy(&encoder)) + die_codec(&encoder, "Failed to destroy codec"); + if (writer) { + vpx_video_writer_close(writer); + } +#if OUTPUT_RC_STATS + if (svc_ctx.output_rc_stat) { + for (sl = 0; sl < enc_cfg.ss_number_layers; ++sl) { + vpx_video_writer_close(outfile[sl]); + } + } +#endif +#if CONFIG_INTERNAL_STATS + if (mismatch_seen) { + fprintf(f, "First mismatch occurred in frame %d\n", mismatch_seen); + } else { + fprintf(f, "No mismatch detected in recon buffers\n"); + } + fclose(f); +#endif + 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); + if (app_input.input_ctx.file_type != FILE_TYPE_Y4M) { + vpx_img_free(&raw); + } + // display average size, psnr + vpx_svc_dump_statistics(&svc_ctx); + vpx_svc_release(&svc_ctx); + return EXIT_SUCCESS; +} |