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Diffstat (limited to 'examples/vpx_temporal_scalable_patterns.c')
| -rw-r--r-- | examples/vpx_temporal_scalable_patterns.c | 548 |
1 files changed, 548 insertions, 0 deletions
diff --git a/examples/vpx_temporal_scalable_patterns.c b/examples/vpx_temporal_scalable_patterns.c new file mode 100644 index 000000000..f91d33ce2 --- /dev/null +++ b/examples/vpx_temporal_scalable_patterns.c @@ -0,0 +1,548 @@ +/* + * 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 temporal scalability for video applications +// that benefit from a scalable bitstream. + +#include <stdarg.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#define VPX_CODEC_DISABLE_COMPAT 1 +#include "./ivfenc.h" +#include "./tools_common.h" +#include "./vpx_config.h" +#include "vpx/vp8cx.h" +#include "vpx/vpx_encoder.h" + +static const char *exec_name; + +void usage_exit() { + exit(EXIT_FAILURE); +} + +static int mode_to_num_layers[12] = {1, 2, 2, 3, 3, 3, 3, 5, 2, 3, 3, 3}; + +// Temporal scaling parameters: +// NOTE: The 3 prediction frames cannot be used interchangeably due to +// differences in the way they are handled throughout the code. The +// frames should be allocated to layers in the order LAST, GF, ARF. +// Other combinations work, but may produce slightly inferior results. +static void set_temporal_layer_pattern(int layering_mode, + vpx_codec_enc_cfg_t *cfg, + int *layer_flags, + int *flag_periodicity) { + switch (layering_mode) { + case 0: { + // 1-layer. + int ids[1] = {0}; + cfg->ts_periodicity = 1; + *flag_periodicity = 1; + cfg->ts_number_layers = 1; + cfg->ts_rate_decimator[0] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // Update L only. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + break; + } + case 1: { + // 2-layers, 2-frame period. + int ids[2] = {0, 1}; + cfg->ts_periodicity = 2; + *flag_periodicity = 2; + cfg->ts_number_layers = 2; + cfg->ts_rate_decimator[0] = 2; + cfg->ts_rate_decimator[1] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); +#if 1 + // 0=L, 1=GF, Intra-layer prediction enabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF; + layer_flags[1] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_REF_ARF; +#else + // 0=L, 1=GF, Intra-layer prediction disabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF; + layer_flags[1] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_REF_LAST; +#endif + break; + } + case 2: { + // 2-layers, 3-frame period. + int ids[3] = {0, 1, 1}; + cfg->ts_periodicity = 3; + *flag_periodicity = 3; + cfg->ts_number_layers = 2; + cfg->ts_rate_decimator[0] = 3; + cfg->ts_rate_decimator[1] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, Intra-layer prediction enabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + layer_flags[1] = + layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + break; + } + case 3: { + // 3-layers, 6-frame period. + int ids[6] = {0, 2, 2, 1, 2, 2}; + cfg->ts_periodicity = 6; + *flag_periodicity = 6; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 6; + cfg->ts_rate_decimator[1] = 3; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + layer_flags[3] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_UPD_LAST; + layer_flags[1] = + layer_flags[2] = + layer_flags[4] = + layer_flags[5] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_LAST; + break; + } + case 4: { + // 3-layers, 4-frame period. + int ids[4] = {0, 2, 1, 2}; + cfg->ts_periodicity = 4; + *flag_periodicity = 4; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF, Intra-layer prediction disabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + layer_flags[1] = + layer_flags[3] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + break; + } + case 5: { + // 3-layers, 4-frame period. + int ids[4] = {0, 2, 1, 2}; + cfg->ts_periodicity = 4; + *flag_periodicity = 4; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled in layer 1, disabled + // in layer 2. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + layer_flags[2] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[1] = + layer_flags[3] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + break; + } + case 6: { + // 3-layers, 4-frame period. + int ids[4] = {0, 2, 1, 2}; + cfg->ts_periodicity = 4; + *flag_periodicity = 4; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF, Intra-layer prediction enabled. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + layer_flags[2] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[1] = + layer_flags[3] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF; + break; + } + case 7: { + // NOTE: Probably of academic interest only. + // 5-layers, 16-frame period. + int ids[16] = {0, 4, 3, 4, 2, 4, 3, 4, 1, 4, 3, 4, 2, 4, 3, 4}; + cfg->ts_periodicity = 16; + *flag_periodicity = 16; + cfg->ts_number_layers = 5; + cfg->ts_rate_decimator[0] = 16; + cfg->ts_rate_decimator[1] = 8; + cfg->ts_rate_decimator[2] = 4; + cfg->ts_rate_decimator[3] = 2; + cfg->ts_rate_decimator[4] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + layer_flags[0] = VPX_EFLAG_FORCE_KF; + layer_flags[1] = + layer_flags[3] = + layer_flags[5] = + layer_flags[7] = + layer_flags[9] = + layer_flags[11] = + layer_flags[13] = + layer_flags[15] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[2] = + layer_flags[6] = + layer_flags[10] = + layer_flags[14] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_GF; + layer_flags[4] = + layer_flags[12] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_UPD_ARF; + layer_flags[8] = VP8_EFLAG_NO_REF_LAST | VP8_EFLAG_NO_REF_GF; + break; + } + case 8: { + // 2-layers, with sync point at first frame of layer 1. + int ids[2] = {0, 1}; + cfg->ts_periodicity = 2; + *flag_periodicity = 8; + cfg->ts_number_layers = 2; + cfg->ts_rate_decimator[0] = 2; + cfg->ts_rate_decimator[1] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF. + // ARF is used as predictor for all frames, and is only updated on + // key frame. Sync point every 8 frames. + + // Layer 0: predict from L and ARF, update L and G. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_UPD_ARF; + // Layer 1: sync point: predict from L and ARF, and update G. + layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_ARF; + // Layer 0, predict from L and ARF, update L. + layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF; + // Layer 1: predict from L, G and ARF, and update G. + layer_flags[3] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_ENTROPY; + // Layer 0. + layer_flags[4] = layer_flags[2]; + // Layer 1. + layer_flags[5] = layer_flags[3]; + // Layer 0. + layer_flags[6] = layer_flags[4]; + // Layer 1. + layer_flags[7] = layer_flags[5]; + break; + } + case 9: { + // 3-layers: Sync points for layer 1 and 2 every 8 frames. + int ids[4] = {0, 2, 1, 2}; + cfg->ts_periodicity = 4; + *flag_periodicity = 8; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_REF_GF | + VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF; + layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ARF; + layer_flags[3] = + layer_flags[5] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF; + layer_flags[4] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_REF_ARF | + VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF; + layer_flags[6] = VP8_EFLAG_NO_REF_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_ARF; + layer_flags[7] = VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_ENTROPY; + break; + } + case 10: { + // 3-layers structure where ARF is used as predictor for all frames, + // and is only updated on key frame. + // Sync points for layer 1 and 2 every 8 frames. + + int ids[4] = {0, 2, 1, 2}; + cfg->ts_periodicity = 4; + *flag_periodicity = 8; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF. + // Layer 0: predict from L and ARF; update L and G. + layer_flags[0] = VPX_EFLAG_FORCE_KF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_REF_GF; + // Layer 2: sync point: predict from L and ARF; update none. + layer_flags[1] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_GF | + VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST | + VP8_EFLAG_NO_UPD_ENTROPY; + // Layer 1: sync point: predict from L and ARF; update G. + layer_flags[2] = VP8_EFLAG_NO_REF_GF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_UPD_LAST; + // Layer 2: predict from L, G, ARF; update none. + layer_flags[3] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY; + // Layer 0: predict from L and ARF; update L. + layer_flags[4] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_REF_GF; + // Layer 2: predict from L, G, ARF; update none. + layer_flags[5] = layer_flags[3]; + // Layer 1: predict from L, G, ARF; update G. + layer_flags[6] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + // Layer 2: predict from L, G, ARF; update none. + layer_flags[7] = layer_flags[3]; + break; + } + case 11: + default: { + // 3-layers structure as in case 10, but no sync/refresh points for + // layer 1 and 2. + int ids[4] = {0, 2, 1, 2}; + cfg->ts_periodicity = 4; + *flag_periodicity = 8; + cfg->ts_number_layers = 3; + cfg->ts_rate_decimator[0] = 4; + cfg->ts_rate_decimator[1] = 2; + cfg->ts_rate_decimator[2] = 1; + memcpy(cfg->ts_layer_id, ids, sizeof(ids)); + // 0=L, 1=GF, 2=ARF. + // Layer 0: predict from L and ARF; update L. + layer_flags[0] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_REF_GF; + layer_flags[4] = layer_flags[0]; + // Layer 1: predict from L, G, ARF; update G. + layer_flags[2] = VP8_EFLAG_NO_UPD_ARF | VP8_EFLAG_NO_UPD_LAST; + layer_flags[6] = layer_flags[2]; + // Layer 2: predict from L, G, ARF; update none. + layer_flags[1] = VP8_EFLAG_NO_UPD_GF | VP8_EFLAG_NO_UPD_ARF | + VP8_EFLAG_NO_UPD_LAST | VP8_EFLAG_NO_UPD_ENTROPY; + layer_flags[3] = layer_flags[1]; + layer_flags[5] = layer_flags[1]; + layer_flags[7] = layer_flags[1]; + break; + } + } +} + +int main(int argc, char **argv) { + FILE *outfile[VPX_TS_MAX_LAYERS]; + vpx_codec_ctx_t codec; + vpx_codec_enc_cfg_t cfg; + int frame_cnt = 0; + vpx_image_t raw; + vpx_codec_err_t res; + unsigned int width; + unsigned int height; + int frame_avail; + int got_data; + int flags = 0; + int i; + int pts = 0; // PTS starts at 0. + int frame_duration = 1; // 1 timebase tick per frame. + int layering_mode = 0; + int frames_in_layer[VPX_TS_MAX_LAYERS] = {0}; + int layer_flags[VPX_TS_MAX_PERIODICITY] = {0}; + int flag_periodicity = 1; + int max_intra_size_pct; + vpx_svc_layer_id_t layer_id = {0, 0}; + char *codec_type; + const vpx_codec_iface_t *(*interface)(void); + unsigned int fourcc; + struct VpxInputContext input_ctx = {0}; + + exec_name = argv[0]; + // Check usage and arguments. + if (argc < 10) { + die("Usage: %s <infile> <outfile> <codec_type(vp8/vp9)> <width> <height> " + "<rate_num> <rate_den> <mode> <Rate_0> ... <Rate_nlayers-1> \n", + argv[0]); + } + + codec_type = argv[3]; + if (strncmp(codec_type, "vp9", 3) == 0) { +#if CONFIG_VP9_ENCODER + interface = vpx_codec_vp9_cx; + fourcc = 0x30395056; +#else + die("Encoder vp9 selected but not configured"); +#endif + } else { +#if CONFIG_VP8_ENCODER + interface = vpx_codec_vp8_cx; + fourcc = 0x30385056; +#else + die("Encoder vp8 selected but not configured"); +#endif + } + printf("Using %s\n", vpx_codec_iface_name(interface())); + + width = strtol(argv[4], NULL, 0); + height = strtol(argv[5], NULL, 0); + if (width < 16 || width % 2 || height < 16 || height % 2) { + die("Invalid resolution: %d x %d", width, height); + } + + layering_mode = strtol(argv[8], NULL, 0); + if (layering_mode < 0 || layering_mode > 11) { + die("Invalid mode (0..11) %s", argv[8]); + } + + if (argc != 9 + mode_to_num_layers[layering_mode]) { + die("Invalid number of arguments"); + } + + if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, width, height, 32)) { + die("Failed to allocate image", width, height); + } + + // Populate encoder configuration. + res = vpx_codec_enc_config_default(interface(), &cfg, 0); + if (res) { + printf("Failed to get config: %s\n", vpx_codec_err_to_string(res)); + return EXIT_FAILURE; + } + + // Update the default configuration with our settings. + cfg.g_w = width; + cfg.g_h = height; + + // Timebase format e.g. 30fps: numerator=1, demoninator = 30. + cfg.g_timebase.num = strtol(argv[6], NULL, 0); + cfg.g_timebase.den = strtol(argv[7], NULL, 0); + + for (i = 9; i < 9 + mode_to_num_layers[layering_mode]; ++i) { + cfg.ts_target_bitrate[i-9] = strtol(argv[i], NULL, 0); + } + + // Real time parameters. + cfg.rc_dropframe_thresh = 0; + cfg.rc_end_usage = VPX_CBR; + cfg.rc_resize_allowed = 0; + cfg.rc_min_quantizer = 2; + cfg.rc_max_quantizer = 56; + cfg.rc_undershoot_pct = 100; + cfg.rc_overshoot_pct = 15; + cfg.rc_buf_initial_sz = 500; + cfg.rc_buf_optimal_sz = 600; + cfg.rc_buf_sz = 1000; + + // Enable error resilient mode. + cfg.g_error_resilient = 1; + cfg.g_lag_in_frames = 0; + cfg.kf_mode = VPX_KF_DISABLED; + + // Disable automatic keyframe placement. + cfg.kf_min_dist = cfg.kf_max_dist = 3000; + + // Default setting for bitrate: used in special case of 1 layer (case 0). + cfg.rc_target_bitrate = cfg.ts_target_bitrate[0]; + + set_temporal_layer_pattern(layering_mode, + &cfg, + layer_flags, + &flag_periodicity); + + // Open input file. + input_ctx.filename = argv[1]; + if (!(input_ctx.file = fopen(input_ctx.filename, "rb"))) { + die("Failed to open %s for reading", argv[1]); + } + + // Open an output file for each stream. + for (i = 0; i < cfg.ts_number_layers; ++i) { + char file_name[512]; + snprintf(file_name, sizeof(file_name), "%s_%d.ivf", argv[2], i); + if (!(outfile[i] = fopen(file_name, "wb"))) + die("Failed to open %s for writing", file_name); + ivf_write_file_header(outfile[i], &cfg, fourcc, 0); + } + // No spatial layers in this encoder. + cfg.ss_number_layers = 1; + + // Initialize codec. + if (vpx_codec_enc_init(&codec, interface(), &cfg, 0)) + die_codec(&codec, "Failed to initialize encoder"); + + vpx_codec_control(&codec, VP8E_SET_CPUUSED, -6); + vpx_codec_control(&codec, VP8E_SET_NOISE_SENSITIVITY, 1); + if (strncmp(codec_type, "vp9", 3) == 0) { + vpx_codec_control(&codec, VP8E_SET_CPUUSED, 3); + vpx_codec_control(&codec, VP8E_SET_NOISE_SENSITIVITY, 0); + if (vpx_codec_control(&codec, VP9E_SET_SVC, 1)) { + die_codec(&codec, "Failed to set SVC"); + } + } + vpx_codec_control(&codec, VP8E_SET_STATIC_THRESHOLD, 1); + vpx_codec_control(&codec, VP8E_SET_TOKEN_PARTITIONS, 1); + max_intra_size_pct = (int) (((double)cfg.rc_buf_optimal_sz * 0.5) + * ((double) cfg.g_timebase.den / cfg.g_timebase.num) / 10.0); + vpx_codec_control(&codec, VP8E_SET_MAX_INTRA_BITRATE_PCT, max_intra_size_pct); + + frame_avail = 1; + while (frame_avail || got_data) { + vpx_codec_iter_t iter = NULL; + const vpx_codec_cx_pkt_t *pkt; + // Update the temporal layer_id. No spatial layers in this test. + layer_id.spatial_layer_id = 0; + layer_id.temporal_layer_id = + cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity]; + vpx_codec_control(&codec, VP9E_SET_SVC_LAYER_ID, &layer_id); + flags = layer_flags[frame_cnt % flag_periodicity]; + frame_avail = !read_yuv_frame(&input_ctx, &raw); + if (vpx_codec_encode(&codec, frame_avail? &raw : NULL, pts, 1, flags, + VPX_DL_REALTIME)) { + die_codec(&codec, "Failed to encode frame"); + } + // Reset KF flag. + if (layering_mode != 7) { + layer_flags[0] &= ~VPX_EFLAG_FORCE_KF; + } + got_data = 0; + while ( (pkt = vpx_codec_get_cx_data(&codec, &iter)) ) { + got_data = 1; + switch (pkt->kind) { + case VPX_CODEC_CX_FRAME_PKT: + for (i = cfg.ts_layer_id[frame_cnt % cfg.ts_periodicity]; + i < cfg.ts_number_layers; ++i) { + ivf_write_frame_header(outfile[i], pts, pkt->data.frame.sz); + (void) fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz, + outfile[i]); + ++frames_in_layer[i]; + } + break; + default: + break; + } + } + ++frame_cnt; + pts += frame_duration; + } + fclose(input_ctx.file); + printf("Processed %d frames: \n", frame_cnt-1); + if (vpx_codec_destroy(&codec)) { + die_codec(&codec, "Failed to destroy codec"); + } + // Try to rewrite the output file headers with the actual frame count. + for (i = 0; i < cfg.ts_number_layers; ++i) { + if (!fseek(outfile[i], 0, SEEK_SET)) + ivf_write_file_header(outfile[i], &cfg, fourcc, frame_cnt); + fclose(outfile[i]); + } + return EXIT_SUCCESS; +} |