1233d2500723e5594f3e7c70896ffeeef32b9c950ywan/* 2233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Copyright (c) 2010 The WebM project authors. All Rights Reserved. 3233d2500723e5594f3e7c70896ffeeef32b9c950ywan * 4233d2500723e5594f3e7c70896ffeeef32b9c950ywan * Use of this source code is governed by a BSD-style license 5233d2500723e5594f3e7c70896ffeeef32b9c950ywan * that can be found in the LICENSE file in the root of the source 6233d2500723e5594f3e7c70896ffeeef32b9c950ywan * tree. An additional intellectual property rights grant can be found 7233d2500723e5594f3e7c70896ffeeef32b9c950ywan * in the file PATENTS. All contributing project authors may 8233d2500723e5594f3e7c70896ffeeef32b9c950ywan * be found in the AUTHORS file in the root of the source tree. 9233d2500723e5594f3e7c70896ffeeef32b9c950ywan */ 10233d2500723e5594f3e7c70896ffeeef32b9c950ywan 11233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Simple Encoder 12233d2500723e5594f3e7c70896ffeeef32b9c950ywan// ============== 13233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 14233d2500723e5594f3e7c70896ffeeef32b9c950ywan// This is an example of a simple encoder loop. It takes an input file in 15233d2500723e5594f3e7c70896ffeeef32b9c950ywan// YV12 format, passes it through the encoder, and writes the compressed 16233d2500723e5594f3e7c70896ffeeef32b9c950ywan// frames to disk in IVF format. Other decoder examples build upon this 17233d2500723e5594f3e7c70896ffeeef32b9c950ywan// one. 18233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 19233d2500723e5594f3e7c70896ffeeef32b9c950ywan// The details of the IVF format have been elided from this example for 20233d2500723e5594f3e7c70896ffeeef32b9c950ywan// simplicity of presentation, as IVF files will not generally be used by 21233d2500723e5594f3e7c70896ffeeef32b9c950ywan// your application. In general, an IVF file consists of a file header, 22233d2500723e5594f3e7c70896ffeeef32b9c950ywan// followed by a variable number of frames. Each frame consists of a frame 23233d2500723e5594f3e7c70896ffeeef32b9c950ywan// header followed by a variable length payload. The length of the payload 24233d2500723e5594f3e7c70896ffeeef32b9c950ywan// is specified in the first four bytes of the frame header. The payload is 25233d2500723e5594f3e7c70896ffeeef32b9c950ywan// the raw compressed data. 26233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 27233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Standard Includes 28233d2500723e5594f3e7c70896ffeeef32b9c950ywan// ----------------- 29233d2500723e5594f3e7c70896ffeeef32b9c950ywan// For encoders, you only have to include `vpx_encoder.h` and then any 30233d2500723e5594f3e7c70896ffeeef32b9c950ywan// header files for the specific codecs you use. In this case, we're using 31233d2500723e5594f3e7c70896ffeeef32b9c950ywan// vp8. The `VPX_CODEC_DISABLE_COMPAT` macro can be defined to ensure 32233d2500723e5594f3e7c70896ffeeef32b9c950ywan// strict compliance with the latest SDK by disabling some backwards 33233d2500723e5594f3e7c70896ffeeef32b9c950ywan// compatibility features. Defining this macro is encouraged. 34233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 35233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Getting The Default Configuration 36233d2500723e5594f3e7c70896ffeeef32b9c950ywan// --------------------------------- 37233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Encoders have the notion of "usage profiles." For example, an encoder 38233d2500723e5594f3e7c70896ffeeef32b9c950ywan// may want to publish default configurations for both a video 39233d2500723e5594f3e7c70896ffeeef32b9c950ywan// conferencing application and a best quality offline encoder. These 40233d2500723e5594f3e7c70896ffeeef32b9c950ywan// obviously have very different default settings. Consult the 41233d2500723e5594f3e7c70896ffeeef32b9c950ywan// documentation for your codec to see if it provides any default 42233d2500723e5594f3e7c70896ffeeef32b9c950ywan// configurations. All codecs provide a default configuration, number 0, 43233d2500723e5594f3e7c70896ffeeef32b9c950ywan// which is valid for material in the vacinity of QCIF/QVGA. 44233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 45233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Updating The Configuration 46233d2500723e5594f3e7c70896ffeeef32b9c950ywan// --------------------------------- 47233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Almost all applications will want to update the default configuration 48233d2500723e5594f3e7c70896ffeeef32b9c950ywan// with settings specific to their usage. Here we set the width and height 49233d2500723e5594f3e7c70896ffeeef32b9c950ywan// of the video file to that specified on the command line. We also scale 50233d2500723e5594f3e7c70896ffeeef32b9c950ywan// the default bitrate based on the ratio between the default resolution 51233d2500723e5594f3e7c70896ffeeef32b9c950ywan// and the resolution specified on the command line. 52233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 53233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Initializing The Codec 54233d2500723e5594f3e7c70896ffeeef32b9c950ywan// ---------------------- 55233d2500723e5594f3e7c70896ffeeef32b9c950ywan// The encoder is initialized by the following code. 56233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 57233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Encoding A Frame 58233d2500723e5594f3e7c70896ffeeef32b9c950ywan// ---------------- 59233d2500723e5594f3e7c70896ffeeef32b9c950ywan// The frame is read as a continuous block (size width * height * 3 / 2) 60233d2500723e5594f3e7c70896ffeeef32b9c950ywan// from the input file. If a frame was read (the input file has not hit 61233d2500723e5594f3e7c70896ffeeef32b9c950ywan// EOF) then the frame is passed to the encoder. Otherwise, a NULL 62233d2500723e5594f3e7c70896ffeeef32b9c950ywan// is passed, indicating the End-Of-Stream condition to the encoder. The 63233d2500723e5594f3e7c70896ffeeef32b9c950ywan// `frame_cnt` is reused as the presentation time stamp (PTS) and each 64233d2500723e5594f3e7c70896ffeeef32b9c950ywan// frame is shown for one frame-time in duration. The flags parameter is 65233d2500723e5594f3e7c70896ffeeef32b9c950ywan// unused in this example. The deadline is set to VPX_DL_REALTIME to 66233d2500723e5594f3e7c70896ffeeef32b9c950ywan// make the example run as quickly as possible. 67233d2500723e5594f3e7c70896ffeeef32b9c950ywan 68233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Forced Keyframes 69233d2500723e5594f3e7c70896ffeeef32b9c950ywan// ---------------- 70233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Keyframes can be forced by setting the VPX_EFLAG_FORCE_KF bit of the 71233d2500723e5594f3e7c70896ffeeef32b9c950ywan// flags passed to `vpx_codec_control()`. In this example, we force a 72233d2500723e5594f3e7c70896ffeeef32b9c950ywan// keyframe every <keyframe-interval> frames. Note, the output stream can 73233d2500723e5594f3e7c70896ffeeef32b9c950ywan// contain additional keyframes beyond those that have been forced using the 74233d2500723e5594f3e7c70896ffeeef32b9c950ywan// VPX_EFLAG_FORCE_KF flag because of automatic keyframe placement by the 75233d2500723e5594f3e7c70896ffeeef32b9c950ywan// encoder. 76233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 77233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Processing The Encoded Data 78233d2500723e5594f3e7c70896ffeeef32b9c950ywan// --------------------------- 79233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Each packet of type `VPX_CODEC_CX_FRAME_PKT` contains the encoded data 80233d2500723e5594f3e7c70896ffeeef32b9c950ywan// for this frame. We write a IVF frame header, followed by the raw data. 81233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 82233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Cleanup 83233d2500723e5594f3e7c70896ffeeef32b9c950ywan// ------- 84233d2500723e5594f3e7c70896ffeeef32b9c950ywan// The `vpx_codec_destroy` call frees any memory allocated by the codec. 85233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 86233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Error Handling 87233d2500723e5594f3e7c70896ffeeef32b9c950ywan// -------------- 88233d2500723e5594f3e7c70896ffeeef32b9c950ywan// This example does not special case any error return codes. If there was 89233d2500723e5594f3e7c70896ffeeef32b9c950ywan// an error, a descriptive message is printed and the program exits. With 90233d2500723e5594f3e7c70896ffeeef32b9c950ywan// few exeptions, vpx_codec functions return an enumerated error status, 91233d2500723e5594f3e7c70896ffeeef32b9c950ywan// with the value `0` indicating success. 92233d2500723e5594f3e7c70896ffeeef32b9c950ywan// 93233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Error Resiliency Features 94233d2500723e5594f3e7c70896ffeeef32b9c950ywan// ------------------------- 95233d2500723e5594f3e7c70896ffeeef32b9c950ywan// Error resiliency is controlled by the g_error_resilient member of the 96233d2500723e5594f3e7c70896ffeeef32b9c950ywan// configuration structure. Use the `decode_with_drops` example to decode with 97233d2500723e5594f3e7c70896ffeeef32b9c950ywan// frames 5-10 dropped. Compare the output for a file encoded with this example 98233d2500723e5594f3e7c70896ffeeef32b9c950ywan// versus one encoded with the `simple_encoder` example. 99233d2500723e5594f3e7c70896ffeeef32b9c950ywan 100233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include <stdio.h> 101233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include <stdlib.h> 102233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include <string.h> 103233d2500723e5594f3e7c70896ffeeef32b9c950ywan 104233d2500723e5594f3e7c70896ffeeef32b9c950ywan#define VPX_CODEC_DISABLE_COMPAT 1 105233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "vpx/vpx_encoder.h" 106233d2500723e5594f3e7c70896ffeeef32b9c950ywan 107233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "./tools_common.h" 108233d2500723e5594f3e7c70896ffeeef32b9c950ywan#include "./video_writer.h" 109233d2500723e5594f3e7c70896ffeeef32b9c950ywan 110233d2500723e5594f3e7c70896ffeeef32b9c950ywanstatic const char *exec_name; 111233d2500723e5594f3e7c70896ffeeef32b9c950ywan 112233d2500723e5594f3e7c70896ffeeef32b9c950ywanvoid usage_exit() { 113233d2500723e5594f3e7c70896ffeeef32b9c950ywan fprintf(stderr, 114233d2500723e5594f3e7c70896ffeeef32b9c950ywan "Usage: %s <codec> <width> <height> <infile> <outfile> " 115233d2500723e5594f3e7c70896ffeeef32b9c950ywan "<keyframe-interval> [<error-resilient>]\nSee comments in " 116233d2500723e5594f3e7c70896ffeeef32b9c950ywan "simple_encoder.c for more information.\n", 117233d2500723e5594f3e7c70896ffeeef32b9c950ywan exec_name); 118233d2500723e5594f3e7c70896ffeeef32b9c950ywan exit(EXIT_FAILURE); 119233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 120233d2500723e5594f3e7c70896ffeeef32b9c950ywan 121233d2500723e5594f3e7c70896ffeeef32b9c950ywanstatic void encode_frame(vpx_codec_ctx_t *codec, 122233d2500723e5594f3e7c70896ffeeef32b9c950ywan vpx_image_t *img, 123233d2500723e5594f3e7c70896ffeeef32b9c950ywan int frame_index, 124233d2500723e5594f3e7c70896ffeeef32b9c950ywan int flags, 125233d2500723e5594f3e7c70896ffeeef32b9c950ywan VpxVideoWriter *writer) { 126233d2500723e5594f3e7c70896ffeeef32b9c950ywan vpx_codec_iter_t iter = NULL; 127233d2500723e5594f3e7c70896ffeeef32b9c950ywan const vpx_codec_cx_pkt_t *pkt = NULL; 128233d2500723e5594f3e7c70896ffeeef32b9c950ywan const vpx_codec_err_t res = vpx_codec_encode(codec, img, frame_index, 1, 129233d2500723e5594f3e7c70896ffeeef32b9c950ywan flags, VPX_DL_GOOD_QUALITY); 130233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (res != VPX_CODEC_OK) 131233d2500723e5594f3e7c70896ffeeef32b9c950ywan die_codec(codec, "Failed to encode frame"); 132233d2500723e5594f3e7c70896ffeeef32b9c950ywan 133233d2500723e5594f3e7c70896ffeeef32b9c950ywan while ((pkt = vpx_codec_get_cx_data(codec, &iter)) != NULL) { 134233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (pkt->kind == VPX_CODEC_CX_FRAME_PKT) { 135233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int keyframe = (pkt->data.frame.flags & VPX_FRAME_IS_KEY) != 0; 136233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!vpx_video_writer_write_frame(writer, 137233d2500723e5594f3e7c70896ffeeef32b9c950ywan pkt->data.frame.buf, 138233d2500723e5594f3e7c70896ffeeef32b9c950ywan pkt->data.frame.sz, 139233d2500723e5594f3e7c70896ffeeef32b9c950ywan pkt->data.frame.pts)) { 140233d2500723e5594f3e7c70896ffeeef32b9c950ywan die_codec(codec, "Failed to write compressed frame"); 141233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 142233d2500723e5594f3e7c70896ffeeef32b9c950ywan 143233d2500723e5594f3e7c70896ffeeef32b9c950ywan printf(keyframe ? "K" : "."); 144233d2500723e5594f3e7c70896ffeeef32b9c950ywan fflush(stdout); 145233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 146233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 147233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 148233d2500723e5594f3e7c70896ffeeef32b9c950ywan 149233d2500723e5594f3e7c70896ffeeef32b9c950ywanint main(int argc, char **argv) { 150233d2500723e5594f3e7c70896ffeeef32b9c950ywan FILE *infile = NULL; 151233d2500723e5594f3e7c70896ffeeef32b9c950ywan vpx_codec_ctx_t codec; 152233d2500723e5594f3e7c70896ffeeef32b9c950ywan vpx_codec_enc_cfg_t cfg; 153233d2500723e5594f3e7c70896ffeeef32b9c950ywan int frame_count = 0; 154233d2500723e5594f3e7c70896ffeeef32b9c950ywan vpx_image_t raw; 155233d2500723e5594f3e7c70896ffeeef32b9c950ywan vpx_codec_err_t res; 156233d2500723e5594f3e7c70896ffeeef32b9c950ywan VpxVideoInfo info = {0}; 157233d2500723e5594f3e7c70896ffeeef32b9c950ywan VpxVideoWriter *writer = NULL; 158233d2500723e5594f3e7c70896ffeeef32b9c950ywan const VpxInterface *encoder = NULL; 159233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int fps = 30; // TODO(dkovalev) add command line argument 160233d2500723e5594f3e7c70896ffeeef32b9c950ywan const int bitrate = 200; // kbit/s TODO(dkovalev) add command line argument 161233d2500723e5594f3e7c70896ffeeef32b9c950ywan int keyframe_interval = 0; 162233d2500723e5594f3e7c70896ffeeef32b9c950ywan 163233d2500723e5594f3e7c70896ffeeef32b9c950ywan // TODO(dkovalev): Add some simple command line parsing code to make the 164233d2500723e5594f3e7c70896ffeeef32b9c950ywan // command line more flexible. 165233d2500723e5594f3e7c70896ffeeef32b9c950ywan const char *codec_arg = NULL; 166233d2500723e5594f3e7c70896ffeeef32b9c950ywan const char *width_arg = NULL; 167233d2500723e5594f3e7c70896ffeeef32b9c950ywan const char *height_arg = NULL; 168233d2500723e5594f3e7c70896ffeeef32b9c950ywan const char *infile_arg = NULL; 169233d2500723e5594f3e7c70896ffeeef32b9c950ywan const char *outfile_arg = NULL; 170233d2500723e5594f3e7c70896ffeeef32b9c950ywan const char *keyframe_interval_arg = NULL; 171233d2500723e5594f3e7c70896ffeeef32b9c950ywan 172233d2500723e5594f3e7c70896ffeeef32b9c950ywan exec_name = argv[0]; 173233d2500723e5594f3e7c70896ffeeef32b9c950ywan 174233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (argc < 7) 175233d2500723e5594f3e7c70896ffeeef32b9c950ywan die("Invalid number of arguments"); 176233d2500723e5594f3e7c70896ffeeef32b9c950ywan 177233d2500723e5594f3e7c70896ffeeef32b9c950ywan codec_arg = argv[1]; 178233d2500723e5594f3e7c70896ffeeef32b9c950ywan width_arg = argv[2]; 179233d2500723e5594f3e7c70896ffeeef32b9c950ywan height_arg = argv[3]; 180233d2500723e5594f3e7c70896ffeeef32b9c950ywan infile_arg = argv[4]; 181233d2500723e5594f3e7c70896ffeeef32b9c950ywan outfile_arg = argv[5]; 182233d2500723e5594f3e7c70896ffeeef32b9c950ywan keyframe_interval_arg = argv[6]; 183233d2500723e5594f3e7c70896ffeeef32b9c950ywan 184233d2500723e5594f3e7c70896ffeeef32b9c950ywan encoder = get_vpx_encoder_by_name(codec_arg); 185233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!encoder) 186233d2500723e5594f3e7c70896ffeeef32b9c950ywan die("Unsupported codec."); 187233d2500723e5594f3e7c70896ffeeef32b9c950ywan 188233d2500723e5594f3e7c70896ffeeef32b9c950ywan info.codec_fourcc = encoder->fourcc; 189233d2500723e5594f3e7c70896ffeeef32b9c950ywan info.frame_width = strtol(width_arg, NULL, 0); 190233d2500723e5594f3e7c70896ffeeef32b9c950ywan info.frame_height = strtol(height_arg, NULL, 0); 191233d2500723e5594f3e7c70896ffeeef32b9c950ywan info.time_base.numerator = 1; 192233d2500723e5594f3e7c70896ffeeef32b9c950ywan info.time_base.denominator = fps; 193233d2500723e5594f3e7c70896ffeeef32b9c950ywan 194233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (info.frame_width <= 0 || 195233d2500723e5594f3e7c70896ffeeef32b9c950ywan info.frame_height <= 0 || 196233d2500723e5594f3e7c70896ffeeef32b9c950ywan (info.frame_width % 2) != 0 || 197233d2500723e5594f3e7c70896ffeeef32b9c950ywan (info.frame_height % 2) != 0) { 198233d2500723e5594f3e7c70896ffeeef32b9c950ywan die("Invalid frame size: %dx%d", info.frame_width, info.frame_height); 199233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 200233d2500723e5594f3e7c70896ffeeef32b9c950ywan 201233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, info.frame_width, 202233d2500723e5594f3e7c70896ffeeef32b9c950ywan info.frame_height, 1)) { 203233d2500723e5594f3e7c70896ffeeef32b9c950ywan die("Failed to allocate image."); 204233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 205233d2500723e5594f3e7c70896ffeeef32b9c950ywan 206233d2500723e5594f3e7c70896ffeeef32b9c950ywan keyframe_interval = strtol(keyframe_interval_arg, NULL, 0); 207233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (keyframe_interval < 0) 208233d2500723e5594f3e7c70896ffeeef32b9c950ywan die("Invalid keyframe interval value."); 209233d2500723e5594f3e7c70896ffeeef32b9c950ywan 210233d2500723e5594f3e7c70896ffeeef32b9c950ywan printf("Using %s\n", vpx_codec_iface_name(encoder->interface())); 211233d2500723e5594f3e7c70896ffeeef32b9c950ywan 212233d2500723e5594f3e7c70896ffeeef32b9c950ywan res = vpx_codec_enc_config_default(encoder->interface(), &cfg, 0); 213233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (res) 214233d2500723e5594f3e7c70896ffeeef32b9c950ywan die_codec(&codec, "Failed to get default codec config."); 215233d2500723e5594f3e7c70896ffeeef32b9c950ywan 216233d2500723e5594f3e7c70896ffeeef32b9c950ywan cfg.g_w = info.frame_width; 217233d2500723e5594f3e7c70896ffeeef32b9c950ywan cfg.g_h = info.frame_height; 218233d2500723e5594f3e7c70896ffeeef32b9c950ywan cfg.g_timebase.num = info.time_base.numerator; 219233d2500723e5594f3e7c70896ffeeef32b9c950ywan cfg.g_timebase.den = info.time_base.denominator; 220233d2500723e5594f3e7c70896ffeeef32b9c950ywan cfg.rc_target_bitrate = bitrate; 221233d2500723e5594f3e7c70896ffeeef32b9c950ywan cfg.g_error_resilient = argc > 7 ? strtol(argv[7], NULL, 0) : 0; 222233d2500723e5594f3e7c70896ffeeef32b9c950ywan 223233d2500723e5594f3e7c70896ffeeef32b9c950ywan writer = vpx_video_writer_open(outfile_arg, kContainerIVF, &info); 224233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!writer) 225233d2500723e5594f3e7c70896ffeeef32b9c950ywan die("Failed to open %s for writing.", outfile_arg); 226233d2500723e5594f3e7c70896ffeeef32b9c950ywan 227233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (!(infile = fopen(infile_arg, "rb"))) 228233d2500723e5594f3e7c70896ffeeef32b9c950ywan die("Failed to open %s for reading.", infile_arg); 229233d2500723e5594f3e7c70896ffeeef32b9c950ywan 230233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (vpx_codec_enc_init(&codec, encoder->interface(), &cfg, 0)) 231233d2500723e5594f3e7c70896ffeeef32b9c950ywan die_codec(&codec, "Failed to initialize encoder"); 232233d2500723e5594f3e7c70896ffeeef32b9c950ywan 233233d2500723e5594f3e7c70896ffeeef32b9c950ywan while (vpx_img_read(&raw, infile)) { 234233d2500723e5594f3e7c70896ffeeef32b9c950ywan int flags = 0; 235233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (keyframe_interval > 0 && frame_count % keyframe_interval == 0) 236233d2500723e5594f3e7c70896ffeeef32b9c950ywan flags |= VPX_EFLAG_FORCE_KF; 237233d2500723e5594f3e7c70896ffeeef32b9c950ywan encode_frame(&codec, &raw, frame_count++, flags, writer); 238233d2500723e5594f3e7c70896ffeeef32b9c950ywan } 239233d2500723e5594f3e7c70896ffeeef32b9c950ywan encode_frame(&codec, NULL, -1, 0, writer); // flush the encoder 240233d2500723e5594f3e7c70896ffeeef32b9c950ywan 241233d2500723e5594f3e7c70896ffeeef32b9c950ywan printf("\n"); 242233d2500723e5594f3e7c70896ffeeef32b9c950ywan fclose(infile); 243233d2500723e5594f3e7c70896ffeeef32b9c950ywan printf("Processed %d frames.\n", frame_count); 244233d2500723e5594f3e7c70896ffeeef32b9c950ywan 245233d2500723e5594f3e7c70896ffeeef32b9c950ywan vpx_img_free(&raw); 246233d2500723e5594f3e7c70896ffeeef32b9c950ywan if (vpx_codec_destroy(&codec)) 247233d2500723e5594f3e7c70896ffeeef32b9c950ywan die_codec(&codec, "Failed to destroy codec."); 248233d2500723e5594f3e7c70896ffeeef32b9c950ywan 249233d2500723e5594f3e7c70896ffeeef32b9c950ywan vpx_video_writer_close(writer); 250233d2500723e5594f3e7c70896ffeeef32b9c950ywan 251233d2500723e5594f3e7c70896ffeeef32b9c950ywan return EXIT_SUCCESS; 252233d2500723e5594f3e7c70896ffeeef32b9c950ywan} 253