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diff --git a/third_party/aom/examples/twopass_encoder.c b/third_party/aom/examples/twopass_encoder.c
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--- a/third_party/aom/examples/twopass_encoder.c
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-/*
- * Copyright (c) 2016, Alliance for Open Media. All rights reserved
- *
- * This source code is subject to the terms of the BSD 2 Clause License and
- * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
- * was not distributed with this source code in the LICENSE file, you can
- * obtain it at www.aomedia.org/license/software. If the Alliance for Open
- * Media Patent License 1.0 was not distributed with this source code in the
- * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
- */
-
-// Two Pass Encoder
-// ================
-//
-// This is an example of a two pass encoder loop. It takes an input file in
-// YV12 format, passes it through the encoder twice, and writes the compressed
-// frames to disk in IVF format. It builds upon the simple_encoder example.
-//
-// Twopass Variables
-// -----------------
-// Twopass mode needs to track the current pass number and the buffer of
-// statistics packets.
-//
-// Updating The Configuration
-// ---------------------------------
-// In two pass mode, the configuration has to be updated on each pass. The
-// statistics buffer is passed on the last pass.
-//
-// Encoding A Frame
-// ----------------
-// Encoding a frame in two pass mode is identical to the simple encoder
-// example.
-//
-// Processing Statistics Packets
-// -----------------------------
-// Each packet of type `AOM_CODEC_CX_FRAME_PKT` contains the encoded data
-// for this frame. We write a IVF frame header, followed by the raw data.
-//
-//
-// Pass Progress Reporting
-// -----------------------------
-// It's sometimes helpful to see when each pass completes.
-//
-//
-// Clean-up
-// -----------------------------
-// Destruction of the encoder instance must be done on each pass. The
-// raw image should be destroyed at the end as usual.
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "aom/aom_encoder.h"
-#include "common/tools_common.h"
-#include "common/video_writer.h"
-
-static const char *exec_name;
-
-void usage_exit(void) {
- fprintf(stderr,
- "Usage: %s <codec> <width> <height> <infile> <outfile> "
- "<limit(optional)>\n",
- exec_name);
- exit(EXIT_FAILURE);
-}
-
-static int get_frame_stats(aom_codec_ctx_t *ctx, const aom_image_t *img,
- aom_codec_pts_t pts, unsigned int duration,
- aom_enc_frame_flags_t flags,
- aom_fixed_buf_t *stats) {
- int got_pkts = 0;
- aom_codec_iter_t iter = NULL;
- const aom_codec_cx_pkt_t *pkt = NULL;
- const aom_codec_err_t res = aom_codec_encode(ctx, img, pts, duration, flags);
- if (res != AOM_CODEC_OK) die_codec(ctx, "Failed to get frame stats.");
-
- while ((pkt = aom_codec_get_cx_data(ctx, &iter)) != NULL) {
- got_pkts = 1;
-
- if (pkt->kind == AOM_CODEC_STATS_PKT) {
- const uint8_t *const pkt_buf = pkt->data.twopass_stats.buf;
- const size_t pkt_size = pkt->data.twopass_stats.sz;
- stats->buf = realloc(stats->buf, stats->sz + pkt_size);
- memcpy((uint8_t *)stats->buf + stats->sz, pkt_buf, pkt_size);
- stats->sz += pkt_size;
- }
- }
-
- return got_pkts;
-}
-
-static int encode_frame(aom_codec_ctx_t *ctx, const aom_image_t *img,
- aom_codec_pts_t pts, unsigned int duration,
- aom_enc_frame_flags_t flags, AvxVideoWriter *writer) {
- int got_pkts = 0;
- aom_codec_iter_t iter = NULL;
- const aom_codec_cx_pkt_t *pkt = NULL;
- const aom_codec_err_t res = aom_codec_encode(ctx, img, pts, duration, flags);
- if (res != AOM_CODEC_OK) die_codec(ctx, "Failed to encode frame.");
-
- while ((pkt = aom_codec_get_cx_data(ctx, &iter)) != NULL) {
- got_pkts = 1;
- if (pkt->kind == AOM_CODEC_CX_FRAME_PKT) {
- const int keyframe = (pkt->data.frame.flags & AOM_FRAME_IS_KEY) != 0;
-
- if (!aom_video_writer_write_frame(writer, pkt->data.frame.buf,
- pkt->data.frame.sz,
- pkt->data.frame.pts))
- die_codec(ctx, "Failed to write compressed frame.");
- printf(keyframe ? "K" : ".");
- fflush(stdout);
- }
- }
-
- return got_pkts;
-}
-
-static aom_fixed_buf_t pass0(aom_image_t *raw, FILE *infile,
- const AvxInterface *encoder,
- const aom_codec_enc_cfg_t *cfg, int limit) {
- aom_codec_ctx_t codec;
- int frame_count = 0;
- aom_fixed_buf_t stats = { NULL, 0 };
-
- if (aom_codec_enc_init(&codec, encoder->codec_interface(), cfg, 0))
- die_codec(&codec, "Failed to initialize encoder");
-
- // Calculate frame statistics.
- while (aom_img_read(raw, infile) && frame_count < limit) {
- ++frame_count;
- get_frame_stats(&codec, raw, frame_count, 1, 0, &stats);
- }
-
- // Flush encoder.
- while (get_frame_stats(&codec, NULL, frame_count, 1, 0, &stats)) {
- }
-
- printf("Pass 0 complete. Processed %d frames.\n", frame_count);
- if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
-
- return stats;
-}
-
-static void pass1(aom_image_t *raw, FILE *infile, const char *outfile_name,
- const AvxInterface *encoder, const aom_codec_enc_cfg_t *cfg,
- int limit) {
- AvxVideoInfo info = { encoder->fourcc,
- cfg->g_w,
- cfg->g_h,
- { cfg->g_timebase.num, cfg->g_timebase.den },
- 0 };
- AvxVideoWriter *writer = NULL;
- aom_codec_ctx_t codec;
- int frame_count = 0;
-
- writer = aom_video_writer_open(outfile_name, kContainerIVF, &info);
- if (!writer) die("Failed to open %s for writing", outfile_name);
-
- if (aom_codec_enc_init(&codec, encoder->codec_interface(), cfg, 0))
- die_codec(&codec, "Failed to initialize encoder");
-
- // Encode frames.
- while (aom_img_read(raw, infile) && frame_count < limit) {
- ++frame_count;
- encode_frame(&codec, raw, frame_count, 1, 0, writer);
- }
-
- // Flush encoder.
- while (encode_frame(&codec, NULL, -1, 1, 0, writer)) {
- }
-
- printf("\n");
-
- if (aom_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec.");
-
- aom_video_writer_close(writer);
-
- printf("Pass 1 complete. Processed %d frames.\n", frame_count);
-}
-
-int main(int argc, char **argv) {
- FILE *infile = NULL;
- int w, h;
- aom_codec_ctx_t codec;
- aom_codec_enc_cfg_t cfg;
- aom_image_t raw;
- aom_codec_err_t res;
- aom_fixed_buf_t stats;
-
- const AvxInterface *encoder = NULL;
- const int fps = 30; // TODO(dkovalev) add command line argument
- const int bitrate = 200; // kbit/s TODO(dkovalev) add command line argument
- const char *const codec_arg = argv[1];
- const char *const width_arg = argv[2];
- const char *const height_arg = argv[3];
- const char *const infile_arg = argv[4];
- const char *const outfile_arg = argv[5];
- int limit = 0;
- exec_name = argv[0];
-
- if (argc < 6) die("Invalid number of arguments");
-
- if (argc > 6) limit = (int)strtol(argv[6], NULL, 0);
-
- if (limit == 0) limit = 100;
-
- encoder = get_aom_encoder_by_name(codec_arg);
- if (!encoder) die("Unsupported codec.");
-
- w = (int)strtol(width_arg, NULL, 0);
- h = (int)strtol(height_arg, NULL, 0);
-
- if (w <= 0 || h <= 0 || (w % 2) != 0 || (h % 2) != 0)
- die("Invalid frame size: %dx%d", w, h);
-
- if (!aom_img_alloc(&raw, AOM_IMG_FMT_I420, w, h, 1))
- die("Failed to allocate image", w, h);
-
- printf("Using %s\n", aom_codec_iface_name(encoder->codec_interface()));
-
- // Configuration
- res = aom_codec_enc_config_default(encoder->codec_interface(), &cfg, 0);
- if (res) die_codec(&codec, "Failed to get default codec config.");
-
- cfg.g_w = w;
- cfg.g_h = h;
- cfg.g_timebase.num = 1;
- cfg.g_timebase.den = fps;
- cfg.rc_target_bitrate = bitrate;
-
- if (!(infile = fopen(infile_arg, "rb")))
- die("Failed to open %s for reading", infile_arg);
-
- // Pass 0
- cfg.g_pass = AOM_RC_FIRST_PASS;
- stats = pass0(&raw, infile, encoder, &cfg, limit);
-
- // Pass 1
- rewind(infile);
- cfg.g_pass = AOM_RC_LAST_PASS;
- cfg.rc_twopass_stats_in = stats;
- pass1(&raw, infile, outfile_arg, encoder, &cfg, limit);
- free(stats.buf);
-
- aom_img_free(&raw);
- fclose(infile);
-
- return EXIT_SUCCESS;
-}
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