text: /*
   * 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.
   */
  
  #include "apps/aomenc.h"
  
  #include "config/aom_config.h"
  
  #include <assert.h>
  #include <limits.h>
  #include <math.h>
  #include <stdarg.h>
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
  
  #if CONFIG_AV1_DECODER
  #include "aom/aom_decoder.h"
  #include "aom/aomdx.h"
  #endif
  
  #include "aom/aom_encoder.h"
  #include "aom/aom_integer.h"
  #include "aom/aomcx.h"
  #include "aom_dsp/aom_dsp_common.h"
  #include "aom_ports/aom_timer.h"
  #include "aom_ports/mem_ops.h"
  #include "common/args.h"
  #include "common/ivfenc.h"
  #include "common/tools_common.h"
  #include "common/warnings.h"
  
  #if CONFIG_WEBM_IO
  #include "common/webmenc.h"
  #endif
  
  #include "common/y4minput.h"
  #include "examples/encoder_util.h"
  #include "stats/aomstats.h"
  #include "stats/rate_hist.h"
  
  #if CONFIG_LIBYUV
  #include "third_party/libyuv/include/libyuv/scale.h"
  #endif
  
  /* Swallow warnings about unused results of fread/fwrite */
  static size_t wrap_fread(void *ptr, size_t size, size_t nmemb, FILE *stream) {
    return fread(ptr, size, nmemb, stream);
  }
  #define fread wrap_fread
  
  static size_t wrap_fwrite(const void *ptr, size_t size, size_t nmemb,
                            FILE *stream) {
    return fwrite(ptr, size, nmemb, stream);
  }
  #define fwrite wrap_fwrite
  
  static const char *exec_name;
  
  static void warn_or_exit_on_errorv(aom_codec_ctx_t *ctx, int fatal,
                                     const char *s, va_list ap) {
    if (ctx->err) {
      const char *detail = aom_codec_error_detail(ctx);
  
      vfprintf(stderr, s, ap);
      fprintf(stderr, ": %s\n", aom_codec_error(ctx));
  
      if (detail) fprintf(stderr, "    %s\n", detail);
  
      if (fatal) exit(EXIT_FAILURE);
    }
  }
  
  static void ctx_exit_on_error(aom_codec_ctx_t *ctx, const char *s, ...) {
    va_list ap;
  
    va_start(ap, s);
    warn_or_exit_on_errorv(ctx, 1, s, ap);
    va_end(ap);
  }
  
  static void warn_or_exit_on_error(aom_codec_ctx_t *ctx, int fatal,
                                    const char *s, ...) {
    va_list ap;
  
    va_start(ap, s);
    warn_or_exit_on_errorv(ctx, fatal, s, ap);
    va_end(ap);
  }
  
  static int read_frame(struct AvxInputContext *input_ctx, aom_image_t *img) {
    FILE *f = input_ctx->file;
    y4m_input *y4m = &input_ctx->y4m;
    int shortread = 0;
  
    if (input_ctx->file_type == FILE_TYPE_Y4M) {
      if (y4m_input_fetch_frame(y4m, f, img) < 1) return 0;
    } else {
      shortread = read_yuv_frame(input_ctx, img);
    }
  
    return !shortread;
  }
  
  static int file_is_y4m(const char detect[4]) {
    if (memcmp(detect, "YUV4", 4) == 0) {
      return 1;
    }
    return 0;
  }
  
  static int fourcc_is_ivf(const char detect[4]) {
    if (memcmp(detect, "DKIF", 4) == 0) {
      return 1;
    }
    return 0;
  }
  
  static const arg_def_t help =
      ARG_DEF(NULL, "help", 0, "Show usage options and exit");
  static const arg_def_t debugmode =
      ARG_DEF("D", "debug", 0, "Debug mode (makes output deterministic)");
  static const arg_def_t outputfile =
      ARG_DEF("o", "output", 1, "Output filename");
  static const arg_def_t use_yv12 =
      ARG_DEF(NULL, "yv12", 0, "Input file is YV12 ");
  static const arg_def_t use_i420 =
      ARG_DEF(NULL, "i420", 0, "Input file is I420 (default)");
  static const arg_def_t use_i422 =
      ARG_DEF(NULL, "i422", 0, "Input file is I422");
  static const arg_def_t use_i444 =
      ARG_DEF(NULL, "i444", 0, "Input file is I444");
  static const arg_def_t codecarg = ARG_DEF(NULL, "codec", 1, "Codec to use");
  static const arg_def_t passes =
      ARG_DEF("p", "passes", 1, "Number of passes (1/2)");
  static const arg_def_t pass_arg =
      ARG_DEF(NULL, "pass", 1, "Pass to execute (1/2)");
  static const arg_def_t fpf_name =
      ARG_DEF(NULL, "fpf", 1, "First pass statistics file name");
  static const arg_def_t limit =
      ARG_DEF(NULL, "limit", 1, "Stop encoding after n input frames");
  static const arg_def_t skip =
      ARG_DEF(NULL, "skip", 1, "Skip the first n input frames");
  static const arg_def_t good_dl =
      ARG_DEF(NULL, "good", 0, "Use Good Quality Deadline");
  static const arg_def_t rt_dl =
      ARG_DEF(NULL, "rt", 0, "Use Realtime Quality Deadline");
  static const arg_def_t quietarg =
      ARG_DEF("q", "quiet", 0, "Do not print encode progress");
  static const arg_def_t verbosearg =
      ARG_DEF("v", "verbose", 0, "Show encoder parameters");
  static const arg_def_t psnrarg =
      ARG_DEF(NULL, "psnr", 0, "Show PSNR in status line");
  #if CONFIG_FILEOPTIONS
  static const arg_def_t use_cfg = ARG_DEF("c", "cfg", 1, "Config file to use");
  static const arg_def_t ext_partition =
      ARG_DEF(NULL, "ext-partition", 1, "corresponds to extended partitions");
  #endif
  
  static const struct arg_enum_list test_decode_enum[] = {
    { "off", TEST_DECODE_OFF },
    { "fatal", TEST_DECODE_FATAL },
    { "warn", TEST_DECODE_WARN },
    { NULL, 0 }
  };
  static const arg_def_t recontest = ARG_DEF_ENUM(
      NULL, "test-decode", 1, "Test encode/decode mismatch", test_decode_enum);
  static const arg_def_t framerate =
      ARG_DEF(NULL, "fps", 1, "Stream frame rate (rate/scale)");
  static const arg_def_t use_webm =
      ARG_DEF(NULL, "webm", 0, "Output WebM (default when WebM IO is enabled)");
  static const arg_def_t use_ivf = ARG_DEF(NULL, "ivf", 0, "Output IVF");
  static const arg_def_t use_obu = ARG_DEF(NULL, "obu", 0, "Output OBU");
  static const arg_def_t q_hist_n =
      ARG_DEF(NULL, "q-hist", 1, "Show quantizer histogram (n-buckets)");
  static const arg_def_t rate_hist_n =
      ARG_DEF(NULL, "rate-hist", 1, "Show rate histogram (n-buckets)");
  static const arg_def_t disable_warnings =
      ARG_DEF(NULL, "disable-warnings", 0,
              "Disable warnings about potentially incorrect encode settings.");
  static const arg_def_t disable_warning_prompt =
      ARG_DEF("y", "disable-warning-prompt", 0,
              "Display warnings, but do not prompt user to continue.");
  static const struct arg_enum_list bitdepth_enum[] = {
    { "8", AOM_BITS_8 }, { "10", AOM_BITS_10 }, { "12", AOM_BITS_12 }, { NULL, 0 }
  };
  
  static const arg_def_t bitdeptharg = ARG_DEF_ENUM(
      "b", "bit-depth", 1,
      "Bit depth for codec (8 for version <=1, 10 or 12 for version 2)",
      bitdepth_enum);
  static const arg_def_t inbitdeptharg =
      ARG_DEF(NULL, "input-bit-depth", 1, "Bit depth of input");
  
  static const arg_def_t input_chroma_subsampling_x = ARG_DEF(
      NULL, "input-chroma-subsampling-x", 1, "chroma subsampling x value.");
  static const arg_def_t input_chroma_subsampling_y = ARG_DEF(
      NULL, "input-chroma-subsampling-y", 1, "chroma subsampling y value.");
  
  static const arg_def_t *main_args[] = { &help,
  #if CONFIG_FILEOPTIONS
                                          &use_cfg,
  #endif
                                          &debugmode,
                                          &outputfile,
                                          &codecarg,
                                          &passes,
                                          &pass_arg,
                                          &fpf_name,
                                          &limit,
                                          &skip,
                                          &good_dl,
                                          &rt_dl,
                                          &quietarg,
                                          &verbosearg,
                                          &psnrarg,
                                          &use_webm,
                                          &use_ivf,
                                          &use_obu,
                                          &q_hist_n,
                                          &rate_hist_n,
                                          &disable_warnings,
                                          &disable_warning_prompt,
                                          &recontest,
                                          NULL };
  
  static const arg_def_t usage =
      ARG_DEF("u", "usage", 1, "Usage profile number to use");
  static const arg_def_t threads =
      ARG_DEF("t", "threads", 1, "Max number of threads to use");
  static const arg_def_t profile =
      ARG_DEF(NULL, "profile", 1, "Bitstream profile number to use");
  static const arg_def_t width = ARG_DEF("w", "width", 1, "Frame width");
  static const arg_def_t height = ARG_DEF("h", "height", 1, "Frame height");
  static const arg_def_t forced_max_frame_width = ARG_DEF(
      NULL, "forced_max_frame_width", 0, "Maximum frame width value to force");
  static const arg_def_t forced_max_frame_height = ARG_DEF(
      NULL, "forced_max_frame_height", 0, "Maximum frame height value to force");
  #if CONFIG_WEBM_IO
  static const struct arg_enum_list stereo_mode_enum[] = {
    { "mono", STEREO_FORMAT_MONO },
    { "left-right", STEREO_FORMAT_LEFT_RIGHT },
    { "bottom-top", STEREO_FORMAT_BOTTOM_TOP },
    { "top-bottom", STEREO_FORMAT_TOP_BOTTOM },
    { "right-left", STEREO_FORMAT_RIGHT_LEFT },
    { NULL, 0 }
  };
  static const arg_def_t stereo_mode = ARG_DEF_ENUM(
      NULL, "stereo-mode", 1, "Stereo 3D video format", stereo_mode_enum);
  #endif
  static const arg_def_t timebase = ARG_DEF(
      NULL, "timebase", 1, "Output timestamp precision (fractional seconds)");
  static const arg_def_t global_error_resilient =
      ARG_DEF(NULL, "global-error-resilient", 1,
              "Enable global error resiliency features");
  static const arg_def_t lag_in_frames =
      ARG_DEF(NULL, "lag-in-frames", 1, "Max number of frames to lag");
  static const arg_def_t large_scale_tile = ARG_DEF(
      NULL, "large-scale-tile", 1,
      "Large scale tile coding (0: off (default), 1: on (ivf output only))");
  static const arg_def_t monochrome =
      ARG_DEF(NULL, "monochrome", 0, "Monochrome video (no chroma planes)");
  static const arg_def_t full_still_picture_hdr = ARG_DEF(
      NULL, "full-still-picture-hdr", 0, "Use full header for still picture");
  
  static const arg_def_t *global_args[] = { &use_yv12,
                                            &use_i420,
                                            &use_i422,
                                            &use_i444,
                                            &usage,
                                            &threads,
                                            &profile,
                                            &width,
                                            &height,
                                            &forced_max_frame_width,
                                            &forced_max_frame_height,
  #if CONFIG_WEBM_IO
                                            &stereo_mode,
  #endif
                                            &timebase,
                                            &framerate,
                                            &global_error_resilient,
                                            &bitdeptharg,
                                            &lag_in_frames,
                                            &large_scale_tile,
                                            &monochrome,
                                            &full_still_picture_hdr,
                                            NULL };
  
  static const arg_def_t dropframe_thresh =
      ARG_DEF(NULL, "drop-frame", 1, "Temporal resampling threshold (buf %)");
  static const arg_def_t resize_mode =
      ARG_DEF(NULL, "resize-mode", 1, "Frame resize mode");
  static const arg_def_t resize_denominator =
      ARG_DEF(NULL, "resize-denominator", 1, "Frame resize denominator");
  static const arg_def_t resize_kf_denominator = ARG_DEF(
      NULL, "resize-kf-denominator", 1, "Frame resize keyframe denominator");
  static const arg_def_t superres_mode =
      ARG_DEF(NULL, "superres-mode", 1, "Frame super-resolution mode");
  static const arg_def_t superres_denominator = ARG_DEF(
      NULL, "superres-denominator", 1, "Frame super-resolution denominator");
  static const arg_def_t superres_kf_denominator =
      ARG_DEF(NULL, "superres-kf-denominator", 1,
              "Frame super-resolution keyframe denominator");
  static const arg_def_t superres_qthresh = ARG_DEF(
      NULL, "superres-qthresh", 1, "Frame super-resolution qindex threshold");
  static const arg_def_t superres_kf_qthresh =
      ARG_DEF(NULL, "superres-kf-qthresh", 1,
              "Frame super-resolution keyframe qindex threshold");
  static const struct arg_enum_list end_usage_enum[] = { { "vbr", AOM_VBR },
                                                         { "cbr", AOM_CBR },
                                                         { "cq", AOM_CQ },
                                                         { "q", AOM_Q },
                                                         { NULL, 0 } };
  static const arg_def_t end_usage =
      ARG_DEF_ENUM(NULL, "end-usage", 1, "Rate control mode", end_usage_enum);
  static const arg_def_t target_bitrate =
      ARG_DEF(NULL, "target-bitrate", 1, "Bitrate (kbps)");
  static const arg_def_t min_quantizer =
      ARG_DEF(NULL, "min-q", 1, "Minimum (best) quantizer");
  static const arg_def_t max_quantizer =
      ARG_DEF(NULL, "max-q", 1, "Maximum (worst) quantizer");
  static const arg_def_t undershoot_pct =
      ARG_DEF(NULL, "undershoot-pct", 1, "Datarate undershoot (min) target (%)");
  static const arg_def_t overshoot_pct =
      ARG_DEF(NULL, "overshoot-pct", 1, "Datarate overshoot (max) target (%)");
  static const arg_def_t buf_sz =
      ARG_DEF(NULL, "buf-sz", 1, "Client buffer size (ms)");
  static const arg_def_t buf_initial_sz =
      ARG_DEF(NULL, "buf-initial-sz", 1, "Client initial buffer size (ms)");
  static const arg_def_t buf_optimal_sz =
      ARG_DEF(NULL, "buf-optimal-sz", 1, "Client optimal buffer size (ms)");
  static const arg_def_t *rc_args[] = { &dropframe_thresh,
                                        &resize_mode,
                                        &resize_denominator,
                                        &resize_kf_denominator,
                                        &superres_mode,
                                        &superres_denominator,
                                        &superres_kf_denominator,
                                        &superres_qthresh,
                                        &superres_kf_qthresh,
                                        &end_usage,
                                        &target_bitrate,
                                        &min_quantizer,
                                        &max_quantizer,
                                        &undershoot_pct,
                                        &overshoot_pct,
                                        &buf_sz,
                                        &buf_initial_sz,
                                        &buf_optimal_sz,
                                        NULL };
  
  static const arg_def_t bias_pct =
      ARG_DEF(NULL, "bias-pct", 1, "CBR/VBR bias (0=CBR, 100=VBR)");
  static const arg_def_t minsection_pct =
      ARG_DEF(NULL, "minsection-pct", 1, "GOP min bitrate (% of target)");
  static const arg_def_t maxsection_pct =
      ARG_DEF(NULL, "maxsection-pct", 1, "GOP max bitrate (% of target)");
  static const arg_def_t *rc_twopass_args[] = { &bias_pct, &minsection_pct,
                                                &maxsection_pct, NULL };
  static const arg_def_t fwd_kf_enabled =
      ARG_DEF(NULL, "enable-fwd-kf", 1, "Enable forward reference keyframes");
  static const arg_def_t kf_min_dist =
      ARG_DEF(NULL, "kf-min-dist", 1, "Minimum keyframe interval (frames)");
  static const arg_def_t kf_max_dist =
      ARG_DEF(NULL, "kf-max-dist", 1, "Maximum keyframe interval (frames)");
  static const arg_def_t kf_disabled =
      ARG_DEF(NULL, "disable-kf", 0, "Disable keyframe placement");
  static const arg_def_t *kf_args[] = { &fwd_kf_enabled, &kf_min_dist,
                                        &kf_max_dist, &kf_disabled, NULL };
  static const arg_def_t sframe_dist =
      ARG_DEF(NULL, "sframe-dist", 1, "S-Frame interval (frames)");
  static const arg_def_t sframe_mode =
      ARG_DEF(NULL, "sframe-mode", 1, "S-Frame insertion mode (1..2)");
  static const arg_def_t save_as_annexb =
      ARG_DEF(NULL, "annexb", 1, "Save as Annex-B");
  static const arg_def_t noise_sens =
      ARG_DEF(NULL, "noise-sensitivity", 1, "Noise sensitivity (frames to blur)");
  static const arg_def_t sharpness =
      ARG_DEF(NULL, "sharpness", 1, "Loop filter sharpness (0..7)");
  static const arg_def_t static_thresh =
      ARG_DEF(NULL, "static-thresh", 1, "Motion detection threshold");
  static const arg_def_t auto_altref =
      ARG_DEF(NULL, "auto-alt-ref", 1, "Enable automatic alt reference frames");
  static const arg_def_t arnr_maxframes =
      ARG_DEF(NULL, "arnr-maxframes", 1, "AltRef max frames (0..15)");
  static const arg_def_t arnr_strength =
      ARG_DEF(NULL, "arnr-strength", 1, "AltRef filter strength (0..6)");
  static const struct arg_enum_list tuning_enum[] = {
    { "psnr", AOM_TUNE_PSNR },
    { "ssim", AOM_TUNE_SSIM },
  #if CONFIG_DIST_8X8
    { "cdef-dist", AOM_TUNE_CDEF_DIST },
    { "daala-dist", AOM_TUNE_DAALA_DIST },
  #endif
    { NULL, 0 }
  };
  static const arg_def_t tune_metric =
      ARG_DEF_ENUM(NULL, "tune", 1, "Distortion metric tuned with", tuning_enum);
  static const arg_def_t cq_level =
      ARG_DEF(NULL, "cq-level", 1, "Constant/Constrained Quality level");
  static const arg_def_t max_intra_rate_pct =
      ARG_DEF(NULL, "max-intra-rate", 1, "Max I-frame bitrate (pct)");
  
  #if CONFIG_AV1_ENCODER
  static const arg_def_t cpu_used_av1 =
      ARG_DEF(NULL, "cpu-used", 1, "CPU Used (0..5)");
  static const arg_def_t rowmtarg =
      ARG_DEF(NULL, "row-mt", 1,
              "Enable row based multi-threading (0: off, 1: on (default))");
  static const arg_def_t tile_cols =
      ARG_DEF(NULL, "tile-columns", 1, "Number of tile columns to use, log2");
  static const arg_def_t tile_rows =
      ARG_DEF(NULL, "tile-rows", 1, "Number of tile rows to use, log2");
  static const arg_def_t enable_tpl_model =
      ARG_DEF(NULL, "enable-tpl-model", 1,
              "RDO based on frame temporal dependency "
              "(0: off, 1: backward source based, 2: forward 2-pass");
  static const arg_def_t tile_width =
      ARG_DEF(NULL, "tile-width", 1, "Tile widths (comma separated)");
  static const arg_def_t tile_height =
      ARG_DEF(NULL, "tile-height", 1, "Tile heights (command separated)");
  static const arg_def_t lossless =
      ARG_DEF(NULL, "lossless", 1, "Lossless mode (0: false (default), 1: true)");
  static const arg_def_t enable_cdef =
      ARG_DEF(NULL, "enable-cdef", 1,
              "Enable the constrained directional enhancement filter (0: false, "
              "1: true (default))");
  static const arg_def_t enable_restoration = ARG_DEF(
      NULL, "enable-restoration", 1,
      "Enable the loop restoration filter (0: false (default in Realtime mode), "
      "1: true (default in Non-realtime mode))");
  static const arg_def_t enable_rect_partitions =
      ARG_DEF(NULL, "enable-rect-partitions", 1,
              "Enable rectangular partitions "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_ab_partitions =
      ARG_DEF(NULL, "enable-ab-partitions", 1,
              "Enable ab partitions (0: false, 1: true (default))");
  static const arg_def_t enable_1to4_partitions =
      ARG_DEF(NULL, "enable-1to4-partitions", 1,
              "Enable 1:4 and 4:1 partitions "
              "(0: false, 1: true (default))");
  static const arg_def_t min_partition_size =
      ARG_DEF(NULL, "min-partition-size", 4,
              "Set min partition size "
              "(4:4x4, 8:8x8, 16:16x16, 32:32x32, 64:64x64, 128:128x128)."
              "On frame with 4k+ resolutions or higher speed settings, the min "
              "partition size will have a minimum of 8.");
  static const arg_def_t max_partition_size =
      ARG_DEF(NULL, "max-partition-size", 128,
              "Set max partition size "
              "(4:4x4, 8:8x8, 16:16x16, 32:32x32, 64:64x64, 128:128x128)");
  static const arg_def_t enable_dual_filter =
      ARG_DEF(NULL, "enable-dual-filter", 1,
              "Enable dual filter "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_chroma_deltaq =
      ARG_DEF(NULL, "enable-chroma-deltaq", 1,
              "Enable chroma delta quant "
              "(0: false (default), 1: true)");
  static const arg_def_t enable_intra_edge_filter =
      ARG_DEF(NULL, "enable-intra-edge-filter", 1,
              "Enable intra edge filtering "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_order_hint =
      ARG_DEF(NULL, "enable-order-hint", 1,
              "Enable order hint "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_tx64 =
      ARG_DEF(NULL, "enable-tx64", 1,
              "Enable 64-pt transform (0: false, 1: true (default))");
  static const arg_def_t tx_size_search_method =
      ARG_DEF(NULL, "tx-size-search-method", 0,
              "Set transform block size search method "
              "(0: Full RD (default), 1: Fast RD, 2: use largest allowed)");
  static const arg_def_t enable_flip_idtx =
      ARG_DEF(NULL, "enable-flip-idtx", 1,
              "Enable extended transform type (0: false, 1: true (default)) "
              "including FLIPADST_DCT, DCT_FLIPADST, FLIPADST_FLIPADST, "
              "ADST_FLIPADST, FLIPADST_ADST, IDTX, V_DCT, H_DCT, V_ADST, "
              "H_ADST, V_FLIPADST, H_FLIPADST");
  static const arg_def_t enable_dist_wtd_comp =
      ARG_DEF(NULL, "enable-dist-wtd-comp", 1,
              "Enable distance-weighted compound "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_masked_comp =
      ARG_DEF(NULL, "enable-masked-comp", 1,
              "Enable masked (wedge/diff-wtd) compound "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_onesided_comp =
      ARG_DEF(NULL, "enable-onesided-comp", 1,
              "Enable one sided compound "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_interintra_comp =
      ARG_DEF(NULL, "enable-interintra-comp", 1,
              "Enable interintra compound "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_smooth_interintra =
      ARG_DEF(NULL, "enable-smooth-interintra", 1,
              "Enable smooth interintra mode "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_diff_wtd_comp =
      ARG_DEF(NULL, "enable-diff-wtd-comp", 1,
              "Enable difference-weighted compound "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_interinter_wedge =
      ARG_DEF(NULL, "enable-interinter-wedge", 1,
              "Enable interinter wedge compound "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_interintra_wedge =
      ARG_DEF(NULL, "enable-interintra-wedge", 1,
              "Enable interintra wedge compound "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_global_motion =
      ARG_DEF(NULL, "enable-global-motion", 1,
              "Enable global motion "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_warped_motion =
      ARG_DEF(NULL, "enable-warped-motion", 1,
              "Enable local warped motion "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_filter_intra =
      ARG_DEF(NULL, "enable-filter-intra", 1,
              "Enable filter intra prediction mode "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_smooth_intra =
      ARG_DEF(NULL, "enable-smooth-intra", 1,
              "Enable smooth intra prediction modes "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_paeth_intra =
      ARG_DEF(NULL, "enable-paeth-intra", 1,
              "Enable Paeth intra prediction mode (0: false, 1: true (default))");
  static const arg_def_t enable_cfl_intra =
      ARG_DEF(NULL, "enable-cfl-intra", 1,
              "Enable chroma from luma intra prediction mode "
              "(0: false, 1: true (default))");
  static const arg_def_t force_video_mode =
      ARG_DEF(NULL, "force-video-mode", 1,
              "Force video mode (0: false, 1: true (default))");
  static const arg_def_t enable_obmc = ARG_DEF(
      NULL, "enable-obmc", 1, "Enable OBMC (0: false, 1: true (default))");
  static const arg_def_t enable_palette =
      ARG_DEF(NULL, "enable-palette", 1,
              "Enable palette prediction mode (0: false, 1: true (default))");
  static const arg_def_t enable_intrabc =
      ARG_DEF(NULL, "enable-intrabc", 1,
              "Enable intra block copy prediction mode "
              "(0: false, 1: true (default))");
  static const arg_def_t enable_angle_delta =
      ARG_DEF(NULL, "enable-angle-delta", 1,
              "Enable intra angle delta (0: false, 1: true (default))");
  static const arg_def_t disable_trellis_quant =
      ARG_DEF(NULL, "disable-trellis-quant", 1,
              "Disable trellis optimization of quantized coefficients (0: false "
              "1: true  2: true for rd search 3: true for estimate yrd serch "
              "(default))");
  static const arg_def_t enable_qm =
      ARG_DEF(NULL, "enable-qm", 1,
              "Enable quantisation matrices (0: false (default), 1: true)");
  static const arg_def_t qm_min = ARG_DEF(
      NULL, "qm-min", 1, "Min quant matrix flatness (0..15), default is 8");
  static const arg_def_t qm_max = ARG_DEF(
      NULL, "qm-max", 1, "Max quant matrix flatness (0..15), default is 15");
  static const arg_def_t reduced_tx_type_set = ARG_DEF(
      NULL, "reduced-tx-type-set", 1, "Use reduced set of transform types");
  static const arg_def_t use_intra_dct_only =
      ARG_DEF(NULL, "use-intra-dct-only", 1, "Use DCT only for INTRA modes");
  static const arg_def_t use_inter_dct_only =
      ARG_DEF(NULL, "use-inter-dct-only", 1, "Use DCT only for INTER modes");
  static const arg_def_t use_intra_default_tx_only =
      ARG_DEF(NULL, "use-intra-default-tx-only", 1,
              "Use Default-transform only for INTRA modes");
  static const arg_def_t quant_b_adapt =
      ARG_DEF(NULL, "quant-b-adapt", 1, "Use adaptive quantize_b");
  static const arg_def_t coeff_cost_upd_freq =
      ARG_DEF(NULL, "coeff-cost-upd-freq", 1,
              "Update freq for coeff costs"
              "0: SB, 1: SB Row per Tile, 2: Tile");
  static const arg_def_t mode_cost_upd_freq =
      ARG_DEF(NULL, "mode-cost-upd-freq", 1,
              "Update freq for mode costs"
              "0: SB, 1: SB Row per Tile, 2: Tile");
  #if CONFIG_DIST_8X8
  static const arg_def_t enable_dist_8x8 =
      ARG_DEF(NULL, "enable-dist-8x8", 1,
              "Enable dist-8x8 (0: false (default), 1: true)");
  #endif  // CONFIG_DIST_8X8
  static const arg_def_t num_tg = ARG_DEF(
      NULL, "num-tile-groups", 1, "Maximum number of tile groups, default is 1");
  static const arg_def_t mtu_size =
      ARG_DEF(NULL, "mtu-size", 1,
              "MTU size for a tile group, default is 0 (no MTU targeting), "
              "overrides maximum number of tile groups");
  static const struct arg_enum_list timing_info_enum[] = {
    { "unspecified", AOM_TIMING_UNSPECIFIED },
    { "constant", AOM_TIMING_EQUAL },
    { "model", AOM_TIMING_DEC_MODEL },
    { NULL, 0 }
  };
  static const arg_def_t timing_info =
      ARG_DEF_ENUM(NULL, "timing-info", 1,
                   "Signal timing info in the bitstream (model unly works for no "
                   "hidden frames, no super-res yet):",
                   timing_info_enum);
  static const arg_def_t film_grain_test =
      ARG_DEF(NULL, "film-grain-test", 1,
              "Film grain test vectors (0: none (default), 1: test-1  2: test-2, "
              "... 16: test-16)");
  static const arg_def_t film_grain_table =
      ARG_DEF(NULL, "film-grain-table", 1,
              "Path to file containing film grain parameters");
  #if CONFIG_DENOISE
  static const arg_def_t denoise_noise_level =
      ARG_DEF(NULL, "denoise-noise-level", 1,
              "Amount of noise (from 0 = don't denoise, to 50)");
  static const arg_def_t denoise_block_size =
      ARG_DEF(NULL, "denoise-block-size", 1, "Denoise block size (default = 32)");
  #endif
  static const arg_def_t enable_ref_frame_mvs =
      ARG_DEF(NULL, "enable-ref-frame-mvs", 1,
              "Enable temporal mv prediction (default is 1)");
  static const arg_def_t frame_parallel_decoding =
      ARG_DEF(NULL, "frame-parallel", 1,
              "Enable frame parallel decodability features "
              "(0: false (default), 1: true)");
  static const arg_def_t error_resilient_mode =
      ARG_DEF(NULL, "error-resilient", 1,
              "Enable error resilient features "
              "(0: false (default), 1: true)");
  static const arg_def_t aq_mode = ARG_DEF(
      NULL, "aq-mode", 1,
      "Adaptive quantization mode (0: off (default), 1: variance 2: complexity, "
      "3: cyclic refresh)");
  static const arg_def_t deltaq_mode =
      ARG_DEF(NULL, "deltaq-mode", 1,
              "Delta qindex mode (0: off, 1: deltaq pred efficiency (default), "
              "2: deltaq perceptual)");
  static const arg_def_t deltalf_mode = ARG_DEF(
      NULL, "delta-lf-mode", 1, "Enable delta-lf-mode (0: off (default), 1: on)");
  static const arg_def_t frame_periodic_boost =
      ARG_DEF(NULL, "frame-boost", 1,
              "Enable frame periodic boost (0: off (default), 1: on)");
  static const arg_def_t gf_cbr_boost_pct = ARG_DEF(
      NULL, "gf-cbr-boost", 1, "Boost for Golden Frame in CBR mode (pct)");
  static const arg_def_t max_inter_rate_pct =
      ARG_DEF(NULL, "max-inter-rate", 1, "Max P-frame bitrate (pct)");
  static const arg_def_t min_gf_interval = ARG_DEF(
      NULL, "min-gf-interval", 1,
      "min gf/arf frame interval (default 0, indicating in-built behavior)");
  static const arg_def_t max_gf_interval = ARG_DEF(
      NULL, "max-gf-interval", 1,
      "max gf/arf frame interval (default 0, indicating in-built behavior)");
  static const arg_def_t gf_max_pyr_height =
      ARG_DEF(NULL, "gf-max-pyr-height", 1,
              "maximum height for GF group pyramid structure (0 to 4 (default))");
  static const arg_def_t max_reference_frames = ARG_DEF(
      NULL, "max-reference-frames", 1,
      "maximum number of reference frames allowed per frame (3 to 7 (default))");
  static const arg_def_t reduced_reference_set =
      ARG_DEF(NULL, "reduced-reference-set", 1,
              "Use reduced set of single and compound references (0: off "
              "(default), 1: on)");
  static const arg_def_t target_seq_level_idx =
      ARG_DEF(NULL, "target-seq-level-idx", 1,
              "Target sequence level index. "
              "Possible values are in the form of \"ABxy\"(pad leading zeros if "
              "less than 4 digits). "
              "AB: Operating point(OP) index; "
              "xy: Target level index for the OP. "
              "E.g. \"0\" means target level index 0 for the 0th OP; "
              "\"1021\" means target level index 21 for the 10th OP.");
  static const arg_def_t set_min_cr =
      ARG_DEF(NULL, "min-cr", 1,
              "Set minimum compression ratio. Take integer values. Default is 0. "
              "If non-zero, encoder will try to keep the compression ratio of "
              "each frame to be higher than the given value divided by 100.");
  
  static const struct arg_enum_list color_primaries_enum[] = {
    { "bt709", AOM_CICP_CP_BT_709 },
    { "unspecified", AOM_CICP_CP_UNSPECIFIED },
    { "bt601", AOM_CICP_CP_BT_601 },
    { "bt470m", AOM_CICP_CP_BT_470_M },
    { "bt470bg", AOM_CICP_CP_BT_470_B_G },
    { "smpte240", AOM_CICP_CP_SMPTE_240 },
    { "film", AOM_CICP_CP_GENERIC_FILM },
    { "bt2020", AOM_CICP_CP_BT_2020 },
    { "xyz", AOM_CICP_CP_XYZ },
    { "smpte431", AOM_CICP_CP_SMPTE_431 },
    { "smpte432", AOM_CICP_CP_SMPTE_432 },
    { "ebu3213", AOM_CICP_CP_EBU_3213 },
    { NULL, 0 }
  };
  
  static const arg_def_t input_color_primaries = ARG_DEF_ENUM(
      NULL, "color-primaries", 1,
      "Color primaries (CICP) of input content:", color_primaries_enum);
  
  static const struct arg_enum_list transfer_characteristics_enum[] = {
    { "unspecified", AOM_CICP_CP_UNSPECIFIED },
    { "bt709", AOM_CICP_TC_BT_709 },
    { "bt470m", AOM_CICP_TC_BT_470_M },
    { "bt470bg", AOM_CICP_TC_BT_470_B_G },
    { "bt601", AOM_CICP_TC_BT_601 },
    { "smpte240", AOM_CICP_TC_SMPTE_240 },
    { "lin", AOM_CICP_TC_LINEAR },
    { "log100", AOM_CICP_TC_LOG_100 },
    { "log100sq10", AOM_CICP_TC_LOG_100_SQRT10 },
    { "iec61966", AOM_CICP_TC_IEC_61966 },
    { "bt1361", AOM_CICP_TC_BT_1361 },
    { "srgb", AOM_CICP_TC_SRGB },
    { "bt2020-10bit", AOM_CICP_TC_BT_2020_10_BIT },
    { "bt2020-12bit", AOM_CICP_TC_BT_2020_12_BIT },
    { "smpte2084", AOM_CICP_TC_SMPTE_2084 },
    { "hlg", AOM_CICP_TC_HLG },
    { "smpte428", AOM_CICP_TC_SMPTE_428 },
    { NULL, 0 }
  };
  
  static const arg_def_t input_transfer_characteristics =
      ARG_DEF_ENUM(NULL, "transfer-characteristics", 1,
                   "Transfer characteristics (CICP) of input content:",
                   transfer_characteristics_enum);
  
  static const struct arg_enum_list matrix_coefficients_enum[] = {
    { "identity", AOM_CICP_MC_IDENTITY },
    { "bt709", AOM_CICP_MC_BT_709 },
    { "unspecified", AOM_CICP_MC_UNSPECIFIED },
    { "fcc73", AOM_CICP_MC_FCC },
    { "bt470bg", AOM_CICP_MC_BT_470_B_G },
    { "bt601", AOM_CICP_MC_BT_601 },
    { "smpte240", AOM_CICP_CP_SMPTE_240 },
    { "ycgco", AOM_CICP_MC_SMPTE_YCGCO },
    { "bt2020ncl", AOM_CICP_MC_BT_2020_NCL },
    { "bt2020cl", AOM_CICP_MC_BT_2020_CL },
    { "smpte2085", AOM_CICP_MC_SMPTE_2085 },
    { "chromncl", AOM_CICP_MC_CHROMAT_NCL },
    { "chromcl", AOM_CICP_MC_CHROMAT_CL },
    { "ictcp", AOM_CICP_MC_ICTCP },
    { NULL, 0 }
  };
  
  static const arg_def_t input_matrix_coefficients = ARG_DEF_ENUM(
      NULL, "matrix-coefficients", 1,
      "Matrix coefficients (CICP) of input content:", matrix_coefficients_enum);
  
  static const struct arg_enum_list chroma_sample_position_enum[] = {
    { "unknown", AOM_CSP_UNKNOWN },
    { "vertical", AOM_CSP_VERTICAL },
    { "colocated", AOM_CSP_COLOCATED },
    { NULL, 0 }
  };
  
  static const arg_def_t input_chroma_sample_position =
      ARG_DEF_ENUM(NULL, "chroma-sample-position", 1,
                   "The chroma sample position when chroma 4:2:0 is signaled:",
                   chroma_sample_position_enum);
  
  static const struct arg_enum_list tune_content_enum[] = {
    { "default", AOM_CONTENT_DEFAULT },
    { "screen", AOM_CONTENT_SCREEN },
    { NULL, 0 }
  };
  
  static const arg_def_t tune_content = ARG_DEF_ENUM(
      NULL, "tune-content", 1, "Tune content type", tune_content_enum);
  
  static const arg_def_t cdf_update_mode =
      ARG_DEF(NULL, "cdf-update-mode", 1,
              "CDF update mode for entropy coding "
              "(0: no CDF update; 1: update CDF on all frames(default); "
              "2: selectively update CDF on some frames");
  
  static const struct arg_enum_list superblock_size_enum[] = {
    { "dynamic", AOM_SUPERBLOCK_SIZE_DYNAMIC },
    { "64", AOM_SUPERBLOCK_SIZE_64X64 },
    { "128", AOM_SUPERBLOCK_SIZE_128X128 },
    { NULL, 0 }
  };
  static const arg_def_t superblock_size = ARG_DEF_ENUM(
      NULL, "sb-size", 1, "Superblock size to use", superblock_size_enum);
  
  static const arg_def_t set_tier_mask =
      ARG_DEF(NULL, "set-tier-mask", 1,
              "Set bit mask to specify which tier each of the 32 possible "
              "operating points conforms to. "
              "Bit value 0(defualt): Main Tier; 1: High Tier.");
  
  static const arg_def_t *av1_args[] = { &cpu_used_av1,
                                         &auto_altref,
                                         &sharpness,
                                         &static_thresh,
                                         &rowmtarg,
                                         &tile_cols,
                                         &tile_rows,
                                         &enable_tpl_model,
                                         &arnr_maxframes,
                                         &arnr_strength,
                                         &tune_metric,
                                         &cq_level,
                                         &max_intra_rate_pct,
                                         &max_inter_rate_pct,
                                         &gf_cbr_boost_pct,
                                         &lossless,
                                         &enable_cdef,
                                         &enable_restoration,
                                         &enable_rect_partitions,
                                         &enable_ab_partitions,
                                         &enable_1to4_partitions,
                                         &min_partition_size,
                                         &max_partition_size,
                                         &enable_dual_filter,
                                         &enable_chroma_deltaq,
                                         &enable_intra_edge_filter,
                                         &enable_order_hint,
                                         &enable_tx64,
                                         &tx_size_search_method,
                                         &enable_flip_idtx,
                                         &enable_dist_wtd_comp,
                                         &enable_masked_comp,
                                         &enable_onesided_comp,
                                         &enable_interintra_comp,
                                         &enable_smooth_interintra,
                                         &enable_diff_wtd_comp,
                                         &enable_interinter_wedge,
                                         &enable_interintra_wedge,
                                         &enable_global_motion,
                                         &enable_warped_motion,
                                         &enable_filter_intra,
                                         &enable_smooth_intra,
                                         &enable_paeth_intra,
                                         &enable_cfl_intra,
                                         &force_video_mode,
                                         &enable_obmc,
                                         &enable_palette,
                                         &enable_intrabc,
                                         &enable_angle_delta,
                                         &disable_trellis_quant,
                                         &enable_qm,
                                         &qm_min,
                                         &qm_max,
                                         &reduced_tx_type_set,
                                         &use_intra_dct_only,
                                         &use_inter_dct_only,
                                         &use_intra_default_tx_only,
                                         &quant_b_adapt,
                                         &coeff_cost_upd_freq,
                                         &mode_cost_upd_freq,
  #if CONFIG_DIST_8X8
                                         &enable_dist_8x8,
  #endif
                                         &frame_parallel_decoding,
                                         &error_resilient_mode,
                                         &aq_mode,
                                         &deltaq_mode,
                                         &deltalf_mode,
                                         &frame_periodic_boost,
                                         &noise_sens,
                                         &tune_content,
                                         &cdf_update_mode,
                                         &input_color_primaries,
                                         &input_transfer_characteristics,
                                         &input_matrix_coefficients,
                                         &input_chroma_sample_position,
                                         &min_gf_interval,
                                         &max_gf_interval,
                                         &gf_max_pyr_height,
                                         &superblock_size,
                                         &num_tg,
                                         &mtu_size,
                                         &timing_info,
                                         &film_grain_test,
                                         &film_grain_table,
  #if CONFIG_DENOISE
                                         &denoise_noise_level,
                                         &denoise_block_size,
  #endif  // CONFIG_DENOISE
                                         &max_reference_frames,
                                         &reduced_reference_set,
                                         &enable_ref_frame_mvs,
                                         &target_seq_level_idx,
                                         &set_tier_mask,
                                         &set_min_cr,
                                         &bitdeptharg,
                                         &inbitdeptharg,
                                         &input_chroma_subsampling_x,
                                         &input_chroma_subsampling_y,
                                         &sframe_dist,
                                         &sframe_mode,
                                         &save_as_annexb,
                                         NULL };
  static const int av1_arg_ctrl_map[] = { AOME_SET_CPUUSED,
                                          AOME_SET_ENABLEAUTOALTREF,
                                          AOME_SET_SHARPNESS,
                                          AOME_SET_STATIC_THRESHOLD,
                                          AV1E_SET_ROW_MT,
                                          AV1E_SET_TILE_COLUMNS,
                                          AV1E_SET_TILE_ROWS,
                                          AV1E_SET_ENABLE_TPL_MODEL,
                                          AOME_SET_ARNR_MAXFRAMES,
                                          AOME_SET_ARNR_STRENGTH,
                                          AOME_SET_TUNING,
                                          AOME_SET_CQ_LEVEL,
                                          AOME_SET_MAX_INTRA_BITRATE_PCT,
                                          AV1E_SET_MAX_INTER_BITRATE_PCT,
                                          AV1E_SET_GF_CBR_BOOST_PCT,
                                          AV1E_SET_LOSSLESS,
                                          AV1E_SET_ENABLE_CDEF,
                                          AV1E_SET_ENABLE_RESTORATION,
                                          AV1E_SET_ENABLE_RECT_PARTITIONS,
                                          AV1E_SET_ENABLE_AB_PARTITIONS,
                                          AV1E_SET_ENABLE_1TO4_PARTITIONS,
                                          AV1E_SET_MIN_PARTITION_SIZE,
                                          AV1E_SET_MAX_PARTITION_SIZE,
                                          AV1E_SET_ENABLE_DUAL_FILTER,
                                          AV1E_SET_ENABLE_CHROMA_DELTAQ,
                                          AV1E_SET_ENABLE_INTRA_EDGE_FILTER,
                                          AV1E_SET_ENABLE_ORDER_HINT,
                                          AV1E_SET_ENABLE_TX64,
                                          AV1E_SET_TX_SIZE_SEARCH_METHOD,
                                          AV1E_SET_ENABLE_FLIP_IDTX,
                                          AV1E_SET_ENABLE_DIST_WTD_COMP,
                                          AV1E_SET_ENABLE_MASKED_COMP,
                                          AV1E_SET_ENABLE_ONESIDED_COMP,
                                          AV1E_SET_ENABLE_INTERINTRA_COMP,
                                          AV1E_SET_ENABLE_SMOOTH_INTERINTRA,
                                          AV1E_SET_ENABLE_DIFF_WTD_COMP,
                                          AV1E_SET_ENABLE_INTERINTER_WEDGE,
                                          AV1E_SET_ENABLE_INTERINTRA_WEDGE,
                                          AV1E_SET_ENABLE_GLOBAL_MOTION,
                                          AV1E_SET_ENABLE_WARPED_MOTION,
                                          AV1E_SET_ENABLE_FILTER_INTRA,
                                          AV1E_SET_ENABLE_SMOOTH_INTRA,
                                          AV1E_SET_ENABLE_PAETH_INTRA,
                                          AV1E_SET_ENABLE_CFL_INTRA,
                                          AV1E_SET_FORCE_VIDEO_MODE,
                                          AV1E_SET_ENABLE_OBMC,
                                          AV1E_SET_ENABLE_PALETTE,
                                          AV1E_SET_ENABLE_INTRABC,
                                          AV1E_SET_ENABLE_ANGLE_DELTA,
                                          AV1E_SET_DISABLE_TRELLIS_QUANT,
                                          AV1E_SET_ENABLE_QM,
                                          AV1E_SET_QM_MIN,
                                          AV1E_SET_QM_MAX,
                                          AV1E_SET_REDUCED_TX_TYPE_SET,
                                          AV1E_SET_INTRA_DCT_ONLY,
                                          AV1E_SET_INTER_DCT_ONLY,
                                          AV1E_SET_INTRA_DEFAULT_TX_ONLY,
                                          AV1E_SET_QUANT_B_ADAPT,
                                          AV1E_SET_COEFF_COST_UPD_FREQ,
                                          AV1E_SET_MODE_COST_UPD_FREQ,
  #if CONFIG_DIST_8X8
                                          AV1E_SET_ENABLE_DIST_8X8,
  #endif
                                          AV1E_SET_FRAME_PARALLEL_DECODING,
                                          AV1E_SET_ERROR_RESILIENT_MODE,
                                          AV1E_SET_AQ_MODE,
                                          AV1E_SET_DELTAQ_MODE,
                                          AV1E_SET_DELTALF_MODE,
                                          AV1E_SET_FRAME_PERIODIC_BOOST,
                                          AV1E_SET_NOISE_SENSITIVITY,
                                          AV1E_SET_TUNE_CONTENT,
                                          AV1E_SET_CDF_UPDATE_MODE,
                                          AV1E_SET_COLOR_PRIMARIES,
                                          AV1E_SET_TRANSFER_CHARACTERISTICS,
                                          AV1E_SET_MATRIX_COEFFICIENTS,
                                          AV1E_SET_CHROMA_SAMPLE_POSITION,
                                          AV1E_SET_MIN_GF_INTERVAL,
                                          AV1E_SET_MAX_GF_INTERVAL,
                                          AV1E_SET_GF_MAX_PYRAMID_HEIGHT,
                                          AV1E_SET_SUPERBLOCK_SIZE,
                                          AV1E_SET_NUM_TG,
                                          AV1E_SET_MTU,
                                          AV1E_SET_TIMING_INFO_TYPE,
                                          AV1E_SET_FILM_GRAIN_TEST_VECTOR,
                                          AV1E_SET_FILM_GRAIN_TABLE,
  #if CONFIG_DENOISE
                                          AV1E_SET_DENOISE_NOISE_LEVEL,
                                          AV1E_SET_DENOISE_BLOCK_SIZE,
  #endif  // CONFIG_DENOISE
                                          AV1E_SET_MAX_REFERENCE_FRAMES,
                                          AV1E_SET_REDUCED_REFERENCE_SET,
                                          AV1E_SET_ENABLE_REF_FRAME_MVS,
                                          AV1E_SET_TARGET_SEQ_LEVEL_IDX,
                                          AV1E_SET_TIER_MASK,
                                          AV1E_SET_MIN_CR,
                                          0 };
  #endif  // CONFIG_AV1_ENCODER
  
  static const arg_def_t *no_args[] = { NULL };
  
  static void show_help(FILE *fout, int shorthelp) {
    fprintf(fout, "Usage: %s <options> -o dst_filename src_filename \n",
            exec_name);
  
    if (shorthelp) {
      fprintf(fout, "Use --help to see the full list of options.\n");
      return;
    }
  
    fprintf(fout, "\nOptions:\n");
    arg_show_usage(fout, main_args);
    fprintf(fout, "\nEncoder Global Options:\n");
    arg_show_usage(fout, global_args);
    fprintf(fout, "\nRate Control Options:\n");
    arg_show_usage(fout, rc_args);
    fprintf(fout, "\nTwopass Rate Control Options:\n");
    arg_show_usage(fout, rc_twopass_args);
    fprintf(fout, "\nKeyframe Placement Options:\n");
    arg_show_usage(fout, kf_args);
  #if CONFIG_AV1_ENCODER
    fprintf(fout, "\nAV1 Specific Options:\n");
    arg_show_usage(fout, av1_args);
  #endif
    fprintf(fout,
            "\nStream timebase (--timebase):\n"
            "  The desired precision of timestamps in the output, expressed\n"
            "  in fractional seconds. Default is 1/1000.\n");
    fprintf(fout, "\nIncluded encoders:\n\n");
  
    const int num_encoder = get_aom_encoder_count();
    for (int i = 0; i < num_encoder; ++i) {
      const AvxInterface *const encoder = get_aom_encoder_by_index(i);
      const char *defstr = (i == (num_encoder - 1)) ? "(default)" : "";
      fprintf(fout, "    %-6s - %s %s\n", encoder->name,
              aom_codec_iface_name(encoder->codec_interface()), defstr);
    }
    fprintf(fout, "\n        ");
    fprintf(fout, "Use --codec to switch to a non-default encoder.\n\n");
  }
  
  void usage_exit(void) {
    show_help(stderr, 1);
    exit(EXIT_FAILURE);
  }
  
  #if CONFIG_AV1_ENCODER
  #define ARG_CTRL_CNT_MAX NELEMENTS(av1_arg_ctrl_map)
  #endif
  
  #if !CONFIG_WEBM_IO
  typedef int stereo_format_t;
  struct WebmOutputContext {
    int debug;
  };
  #endif
  
  /* Per-stream configuration */
  struct stream_config {
    struct aom_codec_enc_cfg cfg;
    const char *out_fn;
    const char *stats_fn;
    stereo_format_t stereo_fmt;
    int arg_ctrls[ARG_CTRL_CNT_MAX][2];
    int arg_ctrl_cnt;
    int write_webm;
    const char *film_grain_filename;
    int write_ivf;
    // whether to use 16bit internal buffers
    int use_16bit_internal;
  };
  
  struct stream_state {
    int index;
    struct stream_state *next;
    struct stream_config config;
    FILE *file;
    struct rate_hist *rate_hist;
    struct WebmOutputContext webm_ctx;
    uint64_t psnr_sse_total;
    uint64_t psnr_samples_total;
    double psnr_totals[4];
    int psnr_count;
    int counts[64];
    aom_codec_ctx_t encoder;
    unsigned int frames_out;
    uint64_t cx_time;
    size_t nbytes;
    stats_io_t stats;
    struct aom_image *img;
    aom_codec_ctx_t decoder;
    int mismatch_seen;
    unsigned int chroma_subsampling_x;
    unsigned int chroma_subsampling_y;
  };
  
  static void validate_positive_rational(const char *msg,
                                         struct aom_rational *rat) {
    if (rat->den < 0) {
      rat->num *= -1;
      rat->den *= -1;
    }
  
    if (rat->num < 0) die("Error: %s must be positive\n", msg);
  
    if (!rat->den) die("Error: %s has zero denominator\n", msg);
  }
  
  /* Parses global config arguments into the AvxEncoderConfig. Note that
   * argv is modified and overwrites all parsed arguments.
   */
  static void parse_global_config(struct AvxEncoderConfig *global, int argc,
                                  char ***argv) {
    char **argi, **argj;
    struct arg arg;
    const int num_encoder = get_aom_encoder_count();
    char **argv_local = (char **)*argv;
  #if CONFIG_FILEOPTIONS
    int argc_local = argc;
  #endif
    if (num_encoder < 1) die("Error: no valid encoder available\n");
  
    /* Initialize default parameters */
    memset(global, 0, sizeof(*global));
    global->codec = get_aom_encoder_by_index(num_encoder - 1);
    global->passes = 0;
    global->color_type = I420;
    global->csp = AOM_CSP_UNKNOWN;
  
  #if CONFIG_FILEOPTIONS
    const char *cfg = NULL;
    int cfg_included = 0;
  #endif
    for (argi = argj = argv_local; (*argj = *argi); argi += arg.argv_step) {
      arg.argv_step = 1;
  
  #if CONFIG_FILEOPTIONS
      if (arg_match(&arg, &use_cfg, argi)) {
        if (cfg_included) continue;
        cfg = arg.val;
  
        arg_cfg(&argc_local, &argv_local, cfg);
  
        *argj = *argi = *argv_local;
        argj = argi = argv_local;
        *argv = argv_local;
        cfg_included = 1;
        continue;
      }
  #endif
      if (arg_match(&arg, &help, argi)) {
        show_help(stdout, 0);
        exit(EXIT_SUCCESS);
      } else if (arg_match(&arg, &codecarg, argi)) {
        global->codec = get_aom_encoder_by_name(arg.val);
        if (!global->codec)
          die("Error: Unrecognized argument (%s) to --codec\n", arg.val);
      } else if (arg_match(&arg, &passes, argi)) {
        global->passes = arg_parse_uint(&arg);
  
        if (global->passes < 1 || global->passes > 2)
          die("Error: Invalid number of passes (%d)\n", global->passes);
      } else if (arg_match(&arg, &pass_arg, argi)) {
        global->pass = arg_parse_uint(&arg);
  
        if (global->pass < 1 || global->pass > 2)
          die("Error: Invalid pass selected (%d)\n", global->pass);
      } else if (arg_match(&arg, &input_chroma_sample_position, argi)) {
        global->csp = arg_parse_enum(&arg);
        /* Flag is used by later code as well, preserve it. */
        argj++;
      } else if (arg_match(&arg, &usage, argi))
        global->usage = arg_parse_uint(&arg);
      else if (arg_match(&arg, &good_dl, argi))
        global->usage = AOM_USAGE_GOOD_QUALITY;  // Good quality usage
      else if (arg_match(&arg, &rt_dl, argi))
        global->usage = AOM_USAGE_REALTIME;  // Real-time usage
      else if (arg_match(&arg, &use_yv12, argi))
        global->color_type = YV12;
      else if (arg_match(&arg, &use_i420, argi))
        global->color_type = I420;
      else if (arg_match(&arg, &use_i422, argi))
        global->color_type = I422;
      else if (arg_match(&arg, &use_i444, argi))
        global->color_type = I444;
      else if (arg_match(&arg, &quietarg, argi))
        global->quiet = 1;
      else if (arg_match(&arg, &verbosearg, argi))
        global->verbose = 1;
      else if (arg_match(&arg, &limit, argi))
        global->limit = arg_parse_uint(&arg);
      else if (arg_match(&arg, &skip, argi))
        global->skip_frames = arg_parse_uint(&arg);
      else if (arg_match(&arg, &psnrarg, argi))
        global->show_psnr = 1;
      else if (arg_match(&arg, &recontest, argi))
        global->test_decode = arg_parse_enum_or_int(&arg);
      else if (arg_match(&arg, &framerate, argi)) {
        global->framerate = arg_parse_rational(&arg);
        validate_positive_rational(arg.name, &global->framerate);
        global->have_framerate = 1;
      } else if (arg_match(&arg, &debugmode, argi))
        global->debug = 1;
      else if (arg_match(&arg, &q_hist_n, argi))
        global->show_q_hist_buckets = arg_parse_uint(&arg);
      else if (arg_match(&arg, &rate_hist_n, argi))
        global->show_rate_hist_buckets = arg_parse_uint(&arg);
      else if (arg_match(&arg, &disable_warnings, argi))
        global->disable_warnings = 1;
      else if (arg_match(&arg, &disable_warning_prompt, argi))
        global->disable_warning_prompt = 1;
      else
        argj++;
    }
  
    if (global->pass) {
      /* DWIM: Assume the user meant passes=2 if pass=2 is specified */
      if (global->pass > global->passes) {
        warn("Assuming --pass=%d implies --passes=%d\n", global->pass,
             global->pass);
        global->passes = global->pass;
      }
    }
    /* Validate global config */
    if (global->passes == 0) {
  #if CONFIG_AV1_ENCODER
      // Make default AV1 passes = 2 until there is a better quality 1-pass
      // encoder
      if (global->codec != NULL && global->codec->name != NULL)
        global->passes = (strcmp(global->codec->name, "av1") == 0 &&
                          global->usage != AOM_USAGE_REALTIME)
                             ? 2
                             : 1;
  #else
      global->passes = 1;
  #endif
    }
  
    if (global->usage == AOM_USAGE_REALTIME && global->passes > 1) {
      warn("Enforcing one-pass encoding in realtime mode\n");
      global->passes = 1;
    }
  }
  
  static void open_input_file(struct AvxInputContext *input,
                              aom_chroma_sample_position_t csp) {
    /* Parse certain options from the input file, if possible */
    input->file = strcmp(input->filename, "-") ? fopen(input->filename, "rb")
                                               : set_binary_mode(stdin);
  
    if (!input->file) fatal("Failed to open input file");
  
    if (!fseeko(input->file, 0, SEEK_END)) {
      /* Input file is seekable. Figure out how long it is, so we can get
       * progress info.
       */
      input->length = ftello(input->file);
      rewind(input->file);
    }
  
    /* Default to 1:1 pixel aspect ratio. */
    input->pixel_aspect_ratio.numerator = 1;
    input->pixel_aspect_ratio.denominator = 1;
  
    /* For RAW input sources, these bytes will applied on the first frame
     *  in read_frame().
     */
    input->detect.buf_read = fread(input->detect.buf, 1, 4, input->file);
    input->detect.position = 0;
  
    if (input->detect.buf_read == 4 && file_is_y4m(input->detect.buf)) {
      if (y4m_input_open(&input->y4m, input->file, input->detect.buf, 4, csp,
                         input->only_i420) >= 0) {
        input->file_type = FILE_TYPE_Y4M;
        input->width = input->y4m.pic_w;
        input->height = input->y4m.pic_h;
        input->pixel_aspect_ratio.numerator = input->y4m.par_n;
        input->pixel_aspect_ratio.denominator = input->y4m.par_d;
        input->framerate.numerator = input->y4m.fps_n;
        input->framerate.denominator = input->y4m.fps_d;
        input->fmt = input->y4m.aom_fmt;
        input->bit_depth = input->y4m.bit_depth;
      } else
        fatal("Unsupported Y4M stream.");
    } else if (input->detect.buf_read == 4 && fourcc_is_ivf(input->detect.buf)) {
      fatal("IVF is not supported as input.");
    } else {
      input->file_type = FILE_TYPE_RAW;
    }
  }
  
  static void close_input_file(struct AvxInputContext *input) {
    fclose(input->file);
    if (input->file_type == FILE_TYPE_Y4M) y4m_input_close(&input->y4m);
  }
  
  static struct stream_state *new_stream(struct AvxEncoderConfig *global,
                                         struct stream_state *prev) {
    struct stream_state *stream;
  
    stream = calloc(1, sizeof(*stream));
    if (stream == NULL) {
      fatal("Failed to allocate new stream.");
    }
  
    if (prev) {
      memcpy(stream, prev, sizeof(*stream));
      stream->index++;
      prev->next = stream;
    } else {
      aom_codec_err_t res;
  
      /* Populate encoder configuration */
      res = aom_codec_enc_config_default(global->codec->codec_interface(),
                                         &stream->config.cfg, global->usage);
      if (res) fatal("Failed to get config: %s\n", aom_codec_err_to_string(res));
  
      /* Change the default timebase to a high enough value so that the
       * encoder will always create strictly increasing timestamps.
       */
      stream->config.cfg.g_timebase.den = 1000;
  
      /* Never use the library's default resolution, require it be parsed
       * from the file or set on the command line.
       */
      stream->config.cfg.g_w = 0;
      stream->config.cfg.g_h = 0;
  
      /* Initialize remaining stream parameters */
      stream->config.write_webm = 1;
      stream->config.write_ivf = 0;
  
  #if CONFIG_WEBM_IO
      stream->config.stereo_fmt = STEREO_FORMAT_MONO;
      stream->webm_ctx.last_pts_ns = -1;
      stream->webm_ctx.writer = NULL;
      stream->webm_ctx.segment = NULL;
  #endif
  
      /* Allows removal of the application version from the EBML tags */
      stream->webm_ctx.debug = global->debug;
    }
  
    /* Output files must be specified for each stream */
    stream->config.out_fn = NULL;
  
    stream->next = NULL;
    return stream;
  }
  
  static void set_config_arg_ctrls(struct stream_config *config, int key,
                                   const struct arg *arg) {
    int j;
    if (key == AV1E_SET_FILM_GRAIN_TABLE) {
      config->film_grain_filename = arg->val;
      return;
    }
  
    // For target level, the settings should accumulate rather than overwrite,
    // so we simply append it.
    if (key == AV1E_SET_TARGET_SEQ_LEVEL_IDX) {
      j = config->arg_ctrl_cnt;
      assert(j < (int)ARG_CTRL_CNT_MAX);
      config->arg_ctrls[j][0] = key;
      config->arg_ctrls[j][1] = arg_parse_enum_or_int(arg);
      ++config->arg_ctrl_cnt;
      return;
    }
  
    /* Point either to the next free element or the first instance of this
     * control.
     */
    for (j = 0; j < config->arg_ctrl_cnt; j++)
      if (config->arg_ctrls[j][0] == key) break;
  
    /* Update/insert */
    assert(j < (int)ARG_CTRL_CNT_MAX);
    config->arg_ctrls[j][0] = key;
    config->arg_ctrls[j][1] = arg_parse_enum_or_int(arg);
  
    if (key == AOME_SET_ENABLEAUTOALTREF && config->arg_ctrls[j][1] > 1) {
      warn("auto-alt-ref > 1 is deprecated... setting auto-alt-ref=1\n");
      config->arg_ctrls[j][1] = 1;
    }
    if (j == config->arg_ctrl_cnt) config->arg_ctrl_cnt++;
  }
  
  static int parse_stream_params(struct AvxEncoderConfig *global,
                                 struct stream_state *stream, char **argv) {
    char **argi, **argj;
    struct arg arg;
    static const arg_def_t **ctrl_args = no_args;
    static const int *ctrl_args_map = NULL;
    struct stream_config *config = &stream->config;
    int eos_mark_found = 0;
    int webm_forced = 0;
  
    // Handle codec specific options
    if (0) {
  #if CONFIG_AV1_ENCODER
    } else if (strcmp(global->codec->name, "av1") == 0) {
      // TODO(jingning): Reuse AV1 specific encoder configuration parameters.
      // Consider to expand this set for AV1 encoder control.
      ctrl_args = av1_args;
      ctrl_args_map = av1_arg_ctrl_map;
  #endif
    }
  
    for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
      arg.argv_step = 1;
  
      /* Once we've found an end-of-stream marker (--) we want to continue
       * shifting arguments but not consuming them.
       */
      if (eos_mark_found) {
        argj++;
        continue;
      } else if (!strcmp(*argj, "--")) {
        eos_mark_found = 1;
        continue;
      }
  
      if (arg_match(&arg, &outputfile, argi)) {
        config->out_fn = arg.val;
        if (!webm_forced) {
          const size_t out_fn_len = strlen(config->out_fn);
          if (out_fn_len >= 4 &&
              !strcmp(config->out_fn + out_fn_len - 4, ".ivf")) {
            config->write_webm = 0;
            config->write_ivf = 1;
          } else if (out_fn_len >= 4 &&
                     !strcmp(config->out_fn + out_fn_len - 4, ".obu")) {
            config->write_webm = 0;
            config->write_ivf = 0;
          }
        }
      } else if (arg_match(&arg, &fpf_name, argi)) {
        config->stats_fn = arg.val;
      } else if (arg_match(&arg, &use_webm, argi)) {
  #if CONFIG_WEBM_IO
        config->write_webm = 1;
        webm_forced = 1;
  #else
        die("Error: --webm specified but webm is disabled.");
  #endif
      } else if (arg_match(&arg, &use_ivf, argi)) {
        config->write_webm = 0;
        config->write_ivf = 1;
      } else if (arg_match(&arg, &use_obu, argi)) {
        config->write_webm = 0;
        config->write_ivf = 0;
      } else if (arg_match(&arg, &threads, argi)) {
        config->cfg.g_threads = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &profile, argi)) {
        config->cfg.g_profile = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &width, argi)) {
        config->cfg.g_w = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &height, argi)) {
        config->cfg.g_h = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &forced_max_frame_width, argi)) {
        config->cfg.g_forced_max_frame_width = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &forced_max_frame_height, argi)) {
        config->cfg.g_forced_max_frame_height = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &bitdeptharg, argi)) {
        config->cfg.g_bit_depth = arg_parse_enum_or_int(&arg);
      } else if (arg_match(&arg, &inbitdeptharg, argi)) {
        config->cfg.g_input_bit_depth = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &input_chroma_subsampling_x, argi)) {
        stream->chroma_subsampling_x = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &input_chroma_subsampling_y, argi)) {
        stream->chroma_subsampling_y = arg_parse_uint(&arg);
  #if CONFIG_WEBM_IO
      } else if (arg_match(&arg, &stereo_mode, argi)) {
        config->stereo_fmt = arg_parse_enum_or_int(&arg);
  #endif
      } else if (arg_match(&arg, &timebase, argi)) {
        config->cfg.g_timebase = arg_parse_rational(&arg);
        validate_positive_rational(arg.name, &config->cfg.g_timebase);
      } else if (arg_match(&arg, &global_error_resilient, argi)) {
        config->cfg.g_error_resilient = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &lag_in_frames, argi)) {
        config->cfg.g_lag_in_frames = arg_parse_uint(&arg);
        if (global->usage == AOM_USAGE_REALTIME &&
            config->cfg.rc_end_usage == AOM_CBR &&
            config->cfg.g_lag_in_frames != 0) {
          warn("non-zero %s option ignored in realtime CBR mode.\n", arg.name);
          config->cfg.g_lag_in_frames = 0;
        }
      } else if (arg_match(&arg, &large_scale_tile, argi)) {
        config->cfg.large_scale_tile = arg_parse_uint(&arg);
        if (config->cfg.large_scale_tile) global->codec = get_aom_lst_encoder();
      } else if (arg_match(&arg, &monochrome, argi)) {
        config->cfg.monochrome = 1;
      } else if (arg_match(&arg, &full_still_picture_hdr, argi)) {
        config->cfg.full_still_picture_hdr = 1;
      } else if (arg_match(&arg, &dropframe_thresh, argi)) {
        config->cfg.rc_dropframe_thresh = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &resize_mode, argi)) {
        config->cfg.rc_resize_mode = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &resize_denominator, argi)) {
        config->cfg.rc_resize_denominator = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &resize_kf_denominator, argi)) {
        config->cfg.rc_resize_kf_denominator = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &superres_mode, argi)) {
        config->cfg.rc_superres_mode = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &superres_denominator, argi)) {
        config->cfg.rc_superres_denominator = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &superres_kf_denominator, argi)) {
        config->cfg.rc_superres_kf_denominator = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &superres_qthresh, argi)) {
        config->cfg.rc_superres_qthresh = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &superres_kf_qthresh, argi)) {
        config->cfg.rc_superres_kf_qthresh = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &end_usage, argi)) {
        config->cfg.rc_end_usage = arg_parse_enum_or_int(&arg);
      } else if (arg_match(&arg, &target_bitrate, argi)) {
        config->cfg.rc_target_bitrate = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &min_quantizer, argi)) {
        config->cfg.rc_min_quantizer = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &max_quantizer, argi)) {
        config->cfg.rc_max_quantizer = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &undershoot_pct, argi)) {
        config->cfg.rc_undershoot_pct = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &overshoot_pct, argi)) {
        config->cfg.rc_overshoot_pct = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &buf_sz, argi)) {
        config->cfg.rc_buf_sz = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &buf_initial_sz, argi)) {
        config->cfg.rc_buf_initial_sz = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &buf_optimal_sz, argi)) {
        config->cfg.rc_buf_optimal_sz = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &bias_pct, argi)) {
        config->cfg.rc_2pass_vbr_bias_pct = arg_parse_uint(&arg);
        if (global->passes < 2)
          warn("option %s ignored in one-pass mode.\n", arg.name);
      } else if (arg_match(&arg, &minsection_pct, argi)) {
        config->cfg.rc_2pass_vbr_minsection_pct = arg_parse_uint(&arg);
  
        if (global->passes < 2)
          warn("option %s ignored in one-pass mode.\n", arg.name);
      } else if (arg_match(&arg, &maxsection_pct, argi)) {
        config->cfg.rc_2pass_vbr_maxsection_pct = arg_parse_uint(&arg);
  
        if (global->passes < 2)
          warn("option %s ignored in one-pass mode.\n", arg.name);
      } else if (arg_match(&arg, &fwd_kf_enabled, argi)) {
        config->cfg.fwd_kf_enabled = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &kf_min_dist, argi)) {
        config->cfg.kf_min_dist = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &kf_max_dist, argi)) {
        config->cfg.kf_max_dist = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &kf_disabled, argi)) {
        config->cfg.kf_mode = AOM_KF_DISABLED;
      } else if (arg_match(&arg, &sframe_dist, argi)) {
        config->cfg.sframe_dist = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &sframe_mode, argi)) {
        config->cfg.sframe_mode = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &save_as_annexb, argi)) {
        config->cfg.save_as_annexb = arg_parse_uint(&arg);
      } else if (arg_match(&arg, &tile_width, argi)) {
        config->cfg.tile_width_count =
            arg_parse_list(&arg, config->cfg.tile_widths, MAX_TILE_WIDTHS);
      } else if (arg_match(&arg, &tile_height, argi)) {
        config->cfg.tile_height_count =
            arg_parse_list(&arg, config->cfg.tile_heights, MAX_TILE_HEIGHTS);
  #if CONFIG_FILEOPTIONS
      } else if (arg_match(&arg, &ext_partition, argi)) {
        config->cfg.cfg.ext_partition = !!arg_parse_uint(&arg) > 0;
  #endif
      } else if (global->usage == AOM_USAGE_REALTIME &&
                 arg_match(&arg, &enable_restoration, argi)) {
        if (arg_parse_uint(&arg) == 1) {
          warn("non-zero %s option ignored in realtime mode.\n", arg.name);
        }
      } else {
        int i, match = 0;
        for (i = 0; ctrl_args[i]; i++) {
          if (arg_match(&arg, ctrl_args[i], argi)) {
            match = 1;
            if (ctrl_args_map) {
              set_config_arg_ctrls(config, ctrl_args_map[i], &arg);
            }
          }
        }
        if (!match) argj++;
      }
    }
    config->use_16bit_internal =
        config->cfg.g_bit_depth > AOM_BITS_8 || FORCE_HIGHBITDEPTH_DECODING;
    return eos_mark_found;
  }
  
  #define FOREACH_STREAM(iterator, list)                 \
    for (struct stream_state *iterator = list; iterator; \
         iterator = iterator->next)
  
  static void validate_stream_config(const struct stream_state *stream,
                                     const struct AvxEncoderConfig *global) {
    const struct stream_state *streami;
    (void)global;
  
    if (!stream->config.cfg.g_w || !stream->config.cfg.g_h)
      fatal(
          "Stream %d: Specify stream dimensions with --width (-w) "
          " and --height (-h)",
          stream->index);
  
    /* Even if bit depth is set on the command line flag to be lower,
     * it is upgraded to at least match the input bit depth.
     */
    assert(stream->config.cfg.g_input_bit_depth <=
           (unsigned int)stream->config.cfg.g_bit_depth);
  
    for (streami = stream; streami; streami = streami->next) {
      /* All streams require output files */
      if (!streami->config.out_fn)
        fatal("Stream %d: Output file is required (specify with -o)",
              streami->index);
  
      /* Check for two streams outputting to the same file */
      if (streami != stream) {
        const char *a = stream->config.out_fn;
        const char *b = streami->config.out_fn;
        if (!strcmp(a, b) && strcmp(a, "/dev/null") && strcmp(a, ":nul"))
          fatal("Stream %d: duplicate output file (from stream %d)",
                streami->index, stream->index);
      }
  
      /* Check for two streams sharing a stats file. */
      if (streami != stream) {
        const char *a = stream->config.stats_fn;
        const char *b = streami->config.stats_fn;
        if (a && b && !strcmp(a, b))
          fatal("Stream %d: duplicate stats file (from stream %d)",
                streami->index, stream->index);
      }
    }
  }
  
  static void set_stream_dimensions(struct stream_state *stream, unsigned int w,
                                    unsigned int h) {
    if (!stream->config.cfg.g_w) {
      if (!stream->config.cfg.g_h)
        stream->config.cfg.g_w = w;
      else
        stream->config.cfg.g_w = w * stream->config.cfg.g_h / h;
    }
    if (!stream->config.cfg.g_h) {
      stream->config.cfg.g_h = h * stream->config.cfg.g_w / w;
    }
  }
  
  static const char *file_type_to_string(enum VideoFileType t) {
    switch (t) {
      case FILE_TYPE_RAW: return "RAW";
      case FILE_TYPE_Y4M: return "Y4M";
      default: return "Other";
    }
  }
  
  static const char *image_format_to_string(aom_img_fmt_t f) {
    switch (f) {
      case AOM_IMG_FMT_I420: return "I420";
      case AOM_IMG_FMT_I422: return "I422";
      case AOM_IMG_FMT_I444: return "I444";
      case AOM_IMG_FMT_YV12: return "YV12";
      case AOM_IMG_FMT_YV1216: return "YV1216";
      case AOM_IMG_FMT_I42016: return "I42016";
      case AOM_IMG_FMT_I42216: return "I42216";
      case AOM_IMG_FMT_I44416: return "I44416";
      default: return "Other";
    }
  }
  
  static void show_stream_config(struct stream_state *stream,
                                 struct AvxEncoderConfig *global,
                                 struct AvxInputContext *input) {
  #define SHOW(field) \
    fprintf(stderr, "    %-28s = %d\n", #field, stream->config.cfg.field)
  
    if (stream->index == 0) {
      fprintf(stderr, "Codec: %s\n",
              aom_codec_iface_name(global->codec->codec_interface()));
      fprintf(stderr, "Source file: %s File Type: %s Format: %s\n",
              input->filename, file_type_to_string(input->file_type),
              image_format_to_string(input->fmt));
    }
    if (stream->next || stream->index)
      fprintf(stderr, "\nStream Index: %d\n", stream->index);
    fprintf(stderr, "Destination file: %s\n", stream->config.out_fn);
    fprintf(stderr, "Coding path: %s\n",
            stream->config.use_16bit_internal ? "HBD" : "LBD");
    fprintf(stderr, "Encoder parameters:\n");
  
    SHOW(g_usage);
    SHOW(g_threads);
    SHOW(g_profile);
    SHOW(g_w);
    SHOW(g_h);
    SHOW(g_bit_depth);
    SHOW(g_input_bit_depth);
    SHOW(g_timebase.num);
    SHOW(g_timebase.den);
    SHOW(g_error_resilient);
    SHOW(g_pass);
    SHOW(g_lag_in_frames);
    SHOW(large_scale_tile);
    SHOW(rc_dropframe_thresh);
    SHOW(rc_resize_mode);
    SHOW(rc_resize_denominator);
    SHOW(rc_resize_kf_denominator);
    SHOW(rc_superres_mode);
    SHOW(rc_superres_denominator);
    SHOW(rc_superres_kf_denominator);
    SHOW(rc_superres_qthresh);
    SHOW(rc_superres_kf_qthresh);
    SHOW(rc_end_usage);
    SHOW(rc_target_bitrate);
    SHOW(rc_min_quantizer);
    SHOW(rc_max_quantizer);
    SHOW(rc_undershoot_pct);
    SHOW(rc_overshoot_pct);
    SHOW(rc_buf_sz);
    SHOW(rc_buf_initial_sz);
    SHOW(rc_buf_optimal_sz);
    SHOW(rc_2pass_vbr_bias_pct);
    SHOW(rc_2pass_vbr_minsection_pct);
    SHOW(rc_2pass_vbr_maxsection_pct);
    SHOW(fwd_kf_enabled);
    SHOW(kf_mode);
    SHOW(kf_min_dist);
    SHOW(kf_max_dist);
  }
  
  static void open_output_file(struct stream_state *stream,
                               struct AvxEncoderConfig *global,
                               const struct AvxRational *pixel_aspect_ratio) {
    const char *fn = stream->config.out_fn;
    const struct aom_codec_enc_cfg *const cfg = &stream->config.cfg;
  
    if (cfg->g_pass == AOM_RC_FIRST_PASS) return;
  
    stream->file = strcmp(fn, "-") ? fopen(fn, "wb") : set_binary_mode(stdout);
  
    if (!stream->file) fatal("Failed to open output file");
  
    if (stream->config.write_webm && fseek(stream->file, 0, SEEK_CUR))
      fatal("WebM output to pipes not supported.");
  
  #if CONFIG_WEBM_IO
    if (stream->config.write_webm) {
      stream->webm_ctx.stream = stream->file;
      if (write_webm_file_header(&stream->webm_ctx, &stream->encoder, cfg,
                                 stream->config.stereo_fmt, global->codec->fourcc,
                                 pixel_aspect_ratio) != 0) {
        fatal("WebM writer initialization failed.");
      }
    }
  #else
    (void)pixel_aspect_ratio;
  #endif
  
    if (!stream->config.write_webm && stream->config.write_ivf) {
      ivf_write_file_header(stream->file, cfg, global->codec->fourcc, 0);
    }
  }
  
  static void close_output_file(struct stream_state *stream,
                                unsigned int fourcc) {
    const struct aom_codec_enc_cfg *const cfg = &stream->config.cfg;
  
    if (cfg->g_pass == AOM_RC_FIRST_PASS) return;
  
  #if CONFIG_WEBM_IO
    if (stream->config.write_webm) {
      if (write_webm_file_footer(&stream->webm_ctx) != 0) {
        fatal("WebM writer finalization failed.");
      }
    }
  #endif
  
    if (!stream->config.write_webm && stream->config.write_ivf) {
      if (!fseek(stream->file, 0, SEEK_SET))
        ivf_write_file_header(stream->file, &stream->config.cfg, fourcc,
                              stream->frames_out);
    }
  
    fclose(stream->file);
  }
  
  static void setup_pass(struct stream_state *stream,
                         struct AvxEncoderConfig *global, int pass) {
    if (stream->config.stats_fn) {
      if (!stats_open_file(&stream->stats, stream->config.stats_fn, pass))
        fatal("Failed to open statistics store");
    } else {
      if (!stats_open_mem(&stream->stats, pass))
        fatal("Failed to open statistics store");
    }
  
    stream->config.cfg.g_pass = global->passes == 2
                                    ? pass ? AOM_RC_LAST_PASS : AOM_RC_FIRST_PASS
                                    : AOM_RC_ONE_PASS;
    if (pass) {
      stream->config.cfg.rc_twopass_stats_in = stats_get(&stream->stats);
    }
  
    stream->cx_time = 0;
    stream->nbytes = 0;
    stream->frames_out = 0;
  }
  
  static void initialize_encoder(struct stream_state *stream,
                                 struct AvxEncoderConfig *global) {
    int i;
    int flags = 0;
  
    flags |= global->show_psnr ? AOM_CODEC_USE_PSNR : 0;
    flags |= stream->config.use_16bit_internal ? AOM_CODEC_USE_HIGHBITDEPTH : 0;
  
    /* Construct Encoder Context */
    aom_codec_enc_init(&stream->encoder, global->codec->codec_interface(),
                       &stream->config.cfg, flags);
    ctx_exit_on_error(&stream->encoder, "Failed to initialize encoder");
  
    /* Note that we bypass the aom_codec_control wrapper macro because
     * we're being clever to store the control IDs in an array. Real
     * applications will want to make use of the enumerations directly
     */
    for (i = 0; i < stream->config.arg_ctrl_cnt; i++) {
      int ctrl = stream->config.arg_ctrls[i][0];
      int value = stream->config.arg_ctrls[i][1];
      if (aom_codec_control_(&stream->encoder, ctrl, value))
        fprintf(stderr, "Error: Tried to set control %d = %d\n", ctrl, value);
  
      ctx_exit_on_error(&stream->encoder, "Failed to control codec");
    }
    if (stream->config.film_grain_filename) {
      aom_codec_control_(&stream->encoder, AV1E_SET_FILM_GRAIN_TABLE,
                         stream->config.film_grain_filename);
    }
  
  #if CONFIG_AV1_DECODER
    if (global->test_decode != TEST_DECODE_OFF) {
      const AvxInterface *decoder = get_aom_decoder_by_name(global->codec->name);
      aom_codec_dec_cfg_t cfg = { 0, 0, 0, !FORCE_HIGHBITDEPTH_DECODING, { 1 } };
      aom_codec_dec_init(&stream->decoder, decoder->codec_interface(), &cfg, 0);
  
      if (strcmp(global->codec->name, "av1") == 0) {
        aom_codec_control(&stream->decoder, AV1_SET_TILE_MODE,
                          stream->config.cfg.large_scale_tile);
        ctx_exit_on_error(&stream->decoder, "Failed to set decode_tile_mode");
  
        aom_codec_control(&stream->decoder, AV1D_SET_IS_ANNEXB,
                          stream->config.cfg.save_as_annexb);
        ctx_exit_on_error(&stream->decoder, "Failed to set is_annexb");
  
        aom_codec_control(&stream->decoder, AV1_SET_DECODE_TILE_ROW, -1);
        ctx_exit_on_error(&stream->decoder, "Failed to set decode_tile_row");
  
        aom_codec_control(&stream->decoder, AV1_SET_DECODE_TILE_COL, -1);
        ctx_exit_on_error(&stream->decoder, "Failed to set decode_tile_col");
      }
    }
  #endif
  }
  
  static void encode_frame(struct stream_state *stream,
                           struct AvxEncoderConfig *global, struct aom_image *img,
                           unsigned int frames_in) {
    aom_codec_pts_t frame_start, next_frame_start;
    struct aom_codec_enc_cfg *cfg = &stream->config.cfg;
    struct aom_usec_timer timer;
  
    frame_start =
        (cfg->g_timebase.den * (int64_t)(frames_in - 1) * global->framerate.den) /
        cfg->g_timebase.num / global->framerate.num;
    next_frame_start =
        (cfg->g_timebase.den * (int64_t)(frames_in)*global->framerate.den) /
        cfg->g_timebase.num / global->framerate.num;
  
    /* Scale if necessary */
    if (img) {
      if ((img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) &&
          (img->d_w != cfg->g_w || img->d_h != cfg->g_h)) {
        if (img->fmt != AOM_IMG_FMT_I42016) {
          fprintf(stderr, "%s can only scale 4:2:0 inputs\n", exec_name);
          exit(EXIT_FAILURE);
        }
  #if CONFIG_LIBYUV
        if (!stream->img) {
          stream->img =
              aom_img_alloc(NULL, AOM_IMG_FMT_I42016, cfg->g_w, cfg->g_h, 16);
        }
        I420Scale_16(
            (uint16_t *)img->planes[AOM_PLANE_Y], img->stride[AOM_PLANE_Y] / 2,
            (uint16_t *)img->planes[AOM_PLANE_U], img->stride[AOM_PLANE_U] / 2,
            (uint16_t *)img->planes[AOM_PLANE_V], img->stride[AOM_PLANE_V] / 2,
            img->d_w, img->d_h, (uint16_t *)stream->img->planes[AOM_PLANE_Y],
            stream->img->stride[AOM_PLANE_Y] / 2,
            (uint16_t *)stream->img->planes[AOM_PLANE_U],
            stream->img->stride[AOM_PLANE_U] / 2,
            (uint16_t *)stream->img->planes[AOM_PLANE_V],
            stream->img->stride[AOM_PLANE_V] / 2, stream->img->d_w,
            stream->img->d_h, kFilterBox);
        img = stream->img;
  #else
        stream->encoder.err = 1;
        ctx_exit_on_error(&stream->encoder,
                          "Stream %d: Failed to encode frame.\n"
                          "libyuv is required for scaling but is currently "
                          "disabled.\n"
                          "Be sure to specify -DCONFIG_LIBYUV=1 when running "
                          "cmake.\n",
                          stream->index);
  #endif
      }
    }
    if (img && (img->d_w != cfg->g_w || img->d_h != cfg->g_h)) {
      if (img->fmt != AOM_IMG_FMT_I420 && img->fmt != AOM_IMG_FMT_YV12) {
        fprintf(stderr, "%s can only scale 4:2:0 8bpp inputs\n", exec_name);
        exit(EXIT_FAILURE);
      }
  #if CONFIG_LIBYUV
      if (!stream->img)
        stream->img =
            aom_img_alloc(NULL, AOM_IMG_FMT_I420, cfg->g_w, cfg->g_h, 16);
      I420Scale(
          img->planes[AOM_PLANE_Y], img->stride[AOM_PLANE_Y],
          img->planes[AOM_PLANE_U], img->stride[AOM_PLANE_U],
          img->planes[AOM_PLANE_V], img->stride[AOM_PLANE_V], img->d_w, img->d_h,
          stream->img->planes[AOM_PLANE_Y], stream->img->stride[AOM_PLANE_Y],
          stream->img->planes[AOM_PLANE_U], stream->img->stride[AOM_PLANE_U],
          stream->img->planes[AOM_PLANE_V], stream->img->stride[AOM_PLANE_V],
          stream->img->d_w, stream->img->d_h, kFilterBox);
      img = stream->img;
  #else
      stream->encoder.err = 1;
      ctx_exit_on_error(&stream->encoder,
                        "Stream %d: Failed to encode frame.\n"
                        "Scaling disabled in this configuration. \n"
                        "To enable, configure with --enable-libyuv\n",
                        stream->index);
  #endif
    }
  
    aom_usec_timer_start(&timer);
    aom_codec_encode(&stream->encoder, img, frame_start,
                     (uint32_t)(next_frame_start - frame_start), 0);
    aom_usec_timer_mark(&timer);
    stream->cx_time += aom_usec_timer_elapsed(&timer);
    ctx_exit_on_error(&stream->encoder, "Stream %d: Failed to encode frame",
                      stream->index);
  }
  
  static void update_quantizer_histogram(struct stream_state *stream) {
    if (stream->config.cfg.g_pass != AOM_RC_FIRST_PASS) {
      int q;
  
      aom_codec_control(&stream->encoder, AOME_GET_LAST_QUANTIZER_64, &q);
      ctx_exit_on_error(&stream->encoder, "Failed to read quantizer");
      stream->counts[q]++;
    }
  }
  
  static void get_cx_data(struct stream_state *stream,
                          struct AvxEncoderConfig *global, int *got_data) {
    const aom_codec_cx_pkt_t *pkt;
    const struct aom_codec_enc_cfg *cfg = &stream->config.cfg;
    aom_codec_iter_t iter = NULL;
  
    *got_data = 0;
    while ((pkt = aom_codec_get_cx_data(&stream->encoder, &iter))) {
      static size_t fsize = 0;
      static FileOffset ivf_header_pos = 0;
  
      switch (pkt->kind) {
        case AOM_CODEC_CX_FRAME_PKT:
          ++stream->frames_out;
          if (!global->quiet)
            fprintf(stderr, " %6luF", (unsigned long)pkt->data.frame.sz);
  
          update_rate_histogram(stream->rate_hist, cfg, pkt);
  #if CONFIG_WEBM_IO
          if (stream->config.write_webm) {
            if (write_webm_block(&stream->webm_ctx, cfg, pkt) != 0) {
              fatal("WebM writer failed.");
            }
          }
  #endif
          if (!stream->config.write_webm) {
            if (stream->config.write_ivf) {
              if (pkt->data.frame.partition_id <= 0) {
                ivf_header_pos = ftello(stream->file);
                fsize = pkt->data.frame.sz;
  
                ivf_write_frame_header(stream->file, pkt->data.frame.pts, fsize);
              } else {
                fsize += pkt->data.frame.sz;
  
                const FileOffset currpos = ftello(stream->file);
                fseeko(stream->file, ivf_header_pos, SEEK_SET);
                ivf_write_frame_size(stream->file, fsize);
                fseeko(stream->file, currpos, SEEK_SET);
              }
            }
  
            (void)fwrite(pkt->data.frame.buf, 1, pkt->data.frame.sz,
                         stream->file);
          }
          stream->nbytes += pkt->data.raw.sz;
  
          *got_data = 1;
  #if CONFIG_AV1_DECODER
          if (global->test_decode != TEST_DECODE_OFF && !stream->mismatch_seen) {
            aom_codec_decode(&stream->decoder, pkt->data.frame.buf,
                             pkt->data.frame.sz, NULL);
            if (stream->decoder.err) {
              warn_or_exit_on_error(&stream->decoder,
                                    global->test_decode == TEST_DECODE_FATAL,
                                    "Failed to decode frame %d in stream %d",
                                    stream->frames_out + 1, stream->index);
              stream->mismatch_seen = stream->frames_out + 1;
            }
          }
  #endif
          break;
        case AOM_CODEC_STATS_PKT:
          stream->frames_out++;
          stats_write(&stream->stats, pkt->data.twopass_stats.buf,
                      pkt->data.twopass_stats.sz);
          stream->nbytes += pkt->data.raw.sz;
          break;
        case AOM_CODEC_PSNR_PKT:
  
          if (global->show_psnr) {
            int i;
  
            stream->psnr_sse_total += pkt->data.psnr.sse[0];
            stream->psnr_samples_total += pkt->data.psnr.samples[0];
            for (i = 0; i < 4; i++) {
              if (!global->quiet)
                fprintf(stderr, "%.3f ", pkt->data.psnr.psnr[i]);
              stream->psnr_totals[i] += pkt->data.psnr.psnr[i];
            }
            stream->psnr_count++;
          }
  
          break;
        default: break;
      }
    }
  }
  
  static void show_psnr(struct stream_state *stream, double peak, int64_t bps) {
    int i;
    double ovpsnr;
  
    if (!stream->psnr_count) return;
  
    fprintf(stderr, "Stream %d PSNR (Overall/Avg/Y/U/V)", stream->index);
    ovpsnr = sse_to_psnr((double)stream->psnr_samples_total, peak,
                         (double)stream->psnr_sse_total);
    fprintf(stderr, " %.3f", ovpsnr);
  
    for (i = 0; i < 4; i++) {
      fprintf(stderr, " %.3f", stream->psnr_totals[i] / stream->psnr_count);
    }
    if (bps > 0) {
      fprintf(stderr, " %7" PRId64 " bps", bps);
    }
    fprintf(stderr, " %7" PRId64 " ms", stream->cx_time / 1000);
    fprintf(stderr, "\n");
  }
  
  static float usec_to_fps(uint64_t usec, unsigned int frames) {
    return (float)(usec > 0 ? frames * 1000000.0 / (float)usec : 0);
  }
  
  static void test_decode(struct stream_state *stream,
                          enum TestDecodeFatality fatal) {
    aom_image_t enc_img, dec_img;
  
    if (stream->mismatch_seen) return;
  
    /* Get the internal reference frame */
    aom_codec_control(&stream->encoder, AV1_GET_NEW_FRAME_IMAGE, &enc_img);
    aom_codec_control(&stream->decoder, AV1_GET_NEW_FRAME_IMAGE, &dec_img);
  
    if ((enc_img.fmt & AOM_IMG_FMT_HIGHBITDEPTH) !=
        (dec_img.fmt & AOM_IMG_FMT_HIGHBITDEPTH)) {
      if (enc_img.fmt & AOM_IMG_FMT_HIGHBITDEPTH) {
        aom_image_t enc_hbd_img;
        aom_img_alloc(&enc_hbd_img, enc_img.fmt - AOM_IMG_FMT_HIGHBITDEPTH,
                      enc_img.d_w, enc_img.d_h, 16);
        aom_img_truncate_16_to_8(&enc_hbd_img, &enc_img);
        enc_img = enc_hbd_img;
      }
      if (dec_img.fmt & AOM_IMG_FMT_HIGHBITDEPTH) {
        aom_image_t dec_hbd_img;
        aom_img_alloc(&dec_hbd_img, dec_img.fmt - AOM_IMG_FMT_HIGHBITDEPTH,
                      dec_img.d_w, dec_img.d_h, 16);
        aom_img_truncate_16_to_8(&dec_hbd_img, &dec_img);
        dec_img = dec_hbd_img;
      }
    }
  
    ctx_exit_on_error(&stream->encoder, "Failed to get encoder reference frame");
    ctx_exit_on_error(&stream->decoder, "Failed to get decoder reference frame");
  
    if (!aom_compare_img(&enc_img, &dec_img)) {
      int y[4], u[4], v[4];
      if (enc_img.fmt & AOM_IMG_FMT_HIGHBITDEPTH) {
        aom_find_mismatch_high(&enc_img, &dec_img, y, u, v);
      } else {
        aom_find_mismatch(&enc_img, &dec_img, y, u, v);
      }
      stream->decoder.err = 1;
      warn_or_exit_on_error(&stream->decoder, fatal == TEST_DECODE_FATAL,
                            "Stream %d: Encode/decode mismatch on frame %d at"
                            " Y[%d, %d] {%d/%d},"
                            " U[%d, %d] {%d/%d},"
                            " V[%d, %d] {%d/%d}",
                            stream->index, stream->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]);
      stream->mismatch_seen = stream->frames_out;
    }
  
    aom_img_free(&enc_img);
    aom_img_free(&dec_img);
  }
  
  static void print_time(const char *label, int64_t etl) {
    int64_t hours;
    int64_t mins;
    int64_t secs;
  
    if (etl >= 0) {
      hours = etl / 3600;
      etl -= hours * 3600;
      mins = etl / 60;
      etl -= mins * 60;
      secs = etl;
  
      fprintf(stderr, "[%3s %2" PRId64 ":%02" PRId64 ":%02" PRId64 "] ", label,
              hours, mins, secs);
    } else {
      fprintf(stderr, "[%3s  unknown] ", label);
    }
  }
  
  int main(int argc, const char **argv_) {
    int pass;
    aom_image_t raw;
    aom_image_t raw_shift;
    int allocated_raw_shift = 0;
    int use_16bit_internal = 0;
    int input_shift = 0;
    int frame_avail, got_data;
  
    struct AvxInputContext input;
    struct AvxEncoderConfig global;
    struct stream_state *streams = NULL;
    char **argv, **argi;
    uint64_t cx_time = 0;
    int stream_cnt = 0;
    int res = 0;
    int profile_updated = 0;
  
    memset(&input, 0, sizeof(input));
    exec_name = argv_[0];
  
    /* Setup default input stream settings */
    input.framerate.numerator = 30;
    input.framerate.denominator = 1;
    input.only_i420 = 1;
    input.bit_depth = 0;
  
    /* First parse the global configuration values, because we want to apply
     * other parameters on top of the default configuration provided by the
     * codec.
     */
    argv = argv_dup(argc - 1, argv_ + 1);
    parse_global_config(&global, argc, &argv);
  
  #if CONFIG_FILEOPTIONS
    if (argc < 2) usage_exit();
  #else
    if (argc < 3) usage_exit();
  #endif
  
    switch (global.color_type) {
      case I420: input.fmt = AOM_IMG_FMT_I420; break;
      case I422: input.fmt = AOM_IMG_FMT_I422; break;
      case I444: input.fmt = AOM_IMG_FMT_I444; break;
      case YV12: input.fmt = AOM_IMG_FMT_YV12; break;
    }
  
    {
      /* Now parse each stream's parameters. Using a local scope here
       * due to the use of 'stream' as loop variable in FOREACH_STREAM
       * loops
       */
      struct stream_state *stream = NULL;
  
      do {
        stream = new_stream(&global, stream);
        stream_cnt++;
        if (!streams) streams = stream;
      } while (parse_stream_params(&global, stream, argv));
    }
  
    /* Check for unrecognized options */
    for (argi = argv; *argi; argi++)
      if (argi[0][0] == '-' && argi[0][1])
        die("Error: Unrecognized option %s\n", *argi);
  
    FOREACH_STREAM(stream, streams) {
      check_encoder_config(global.disable_warning_prompt, &global,
                           &stream->config.cfg);
  
      // If large_scale_tile = 1, only support to output to ivf format.
      if (stream->config.cfg.large_scale_tile && !stream->config.write_ivf)
        die("only support ivf output format while large-scale-tile=1\n");
    }
  
    /* Handle non-option arguments */
    input.filename = argv[0];
  
    if (!input.filename) {
      fprintf(stderr, "No input file specified!\n");
      usage_exit();
    }
  
    /* Decide if other chroma subsamplings than 4:2:0 are supported */
    if (global.codec->fourcc == AV1_FOURCC) input.only_i420 = 0;
  
    for (pass = global.pass ? global.pass - 1 : 0; pass < global.passes; pass++) {
      int frames_in = 0, seen_frames = 0;
      int64_t estimated_time_left = -1;
      int64_t average_rate = -1;
      int64_t lagged_count = 0;
  
      open_input_file(&input, global.csp);
  
      /* If the input file doesn't specify its w/h (raw files), try to get
       * the data from the first stream's configuration.
       */
      if (!input.width || !input.height) {
        FOREACH_STREAM(stream, streams) {
          if (stream->config.cfg.g_w && stream->config.cfg.g_h) {
            input.width = stream->config.cfg.g_w;
            input.height = stream->config.cfg.g_h;
            break;
          }
        };
      }
  
      /* Update stream configurations from the input file's parameters */
      if (!input.width || !input.height)
        fatal(
            "Specify stream dimensions with --width (-w) "
            " and --height (-h)");
  
      /* If input file does not specify bit-depth but input-bit-depth parameter
       * exists, assume that to be the input bit-depth. However, if the
       * input-bit-depth paramter does not exist, assume the input bit-depth
       * to be the same as the codec bit-depth.
       */
      if (!input.bit_depth) {
        FOREACH_STREAM(stream, streams) {
          if (stream->config.cfg.g_input_bit_depth)
            input.bit_depth = stream->config.cfg.g_input_bit_depth;
          else
            input.bit_depth = stream->config.cfg.g_input_bit_depth =
                (int)stream->config.cfg.g_bit_depth;
        }
        if (input.bit_depth > 8) input.fmt |= AOM_IMG_FMT_HIGHBITDEPTH;
      } else {
        FOREACH_STREAM(stream, streams) {
          stream->config.cfg.g_input_bit_depth = input.bit_depth;
        }
      }
  
      FOREACH_STREAM(stream, streams) {
        if (input.fmt != AOM_IMG_FMT_I420 && input.fmt != AOM_IMG_FMT_I42016) {
          /* Automatically upgrade if input is non-4:2:0 but a 4:2:0 profile
             was selected. */
          switch (stream->config.cfg.g_profile) {
            case 0:
              if (input.bit_depth < 12 && (input.fmt == AOM_IMG_FMT_I444 ||
                                           input.fmt == AOM_IMG_FMT_I44416)) {
                if (!stream->config.cfg.monochrome) {
                  stream->config.cfg.g_profile = 1;
                  profile_updated = 1;
                }
              } else if (input.bit_depth == 12 || input.fmt == AOM_IMG_FMT_I422 ||
                         input.fmt == AOM_IMG_FMT_I42216) {
                stream->config.cfg.g_profile = 2;
                profile_updated = 1;
              }
              break;
            case 1:
              if (input.bit_depth == 12 || input.fmt == AOM_IMG_FMT_I422 ||
                  input.fmt == AOM_IMG_FMT_I42216) {
                stream->config.cfg.g_profile = 2;
                profile_updated = 1;
              } else if (input.bit_depth < 12 &&
                         (input.fmt == AOM_IMG_FMT_I420 ||
                          input.fmt == AOM_IMG_FMT_I42016)) {
                stream->config.cfg.g_profile = 0;
                profile_updated = 1;
              }
              break;
            case 2:
              if (input.bit_depth < 12 && (input.fmt == AOM_IMG_FMT_I444 ||
                                           input.fmt == AOM_IMG_FMT_I44416)) {
                stream->config.cfg.g_profile = 1;
                profile_updated = 1;
              } else if (input.bit_depth < 12 &&
                         (input.fmt == AOM_IMG_FMT_I420 ||
                          input.fmt == AOM_IMG_FMT_I42016)) {
                stream->config.cfg.g_profile = 0;
                profile_updated = 1;
              } else if (input.bit_depth == 12 &&
                         input.file_type == FILE_TYPE_Y4M) {
                // Note that here the input file values for chroma subsampling
                // are used instead of those from the command line.
                aom_codec_control(&stream->encoder, AV1E_SET_CHROMA_SUBSAMPLING_X,
                                  input.y4m.dst_c_dec_h >> 1);
                aom_codec_control(&stream->encoder, AV1E_SET_CHROMA_SUBSAMPLING_Y,
                                  input.y4m.dst_c_dec_v >> 1);
              } else if (input.bit_depth == 12 &&
                         input.file_type == FILE_TYPE_RAW) {
                aom_codec_control(&stream->encoder, AV1E_SET_CHROMA_SUBSAMPLING_X,
                                  stream->chroma_subsampling_x);
                aom_codec_control(&stream->encoder, AV1E_SET_CHROMA_SUBSAMPLING_Y,
                                  stream->chroma_subsampling_y);
              }
              break;
            default: break;
          }
        }
        /* Automatically set the codec bit depth to match the input bit depth.
         * Upgrade the profile if required. */
        if (stream->config.cfg.g_input_bit_depth >
            (unsigned int)stream->config.cfg.g_bit_depth) {
          stream->config.cfg.g_bit_depth = stream->config.cfg.g_input_bit_depth;
          if (!global.quiet) {
            fprintf(stderr,
                    "Warning: automatically updating bit depth to %d to "
                    "match input format.\n",
                    stream->config.cfg.g_input_bit_depth);
          }
        }
        if (stream->config.cfg.g_bit_depth > 10) {
          switch (stream->config.cfg.g_profile) {
            case 0:
            case 1:
              stream->config.cfg.g_profile = 2;
              profile_updated = 1;
              break;
            default: break;
          }
        }
        if (stream->config.cfg.g_bit_depth > 8) {
          stream->config.use_16bit_internal = 1;
        }
        if (profile_updated && !global.quiet) {
          fprintf(stderr,
                  "Warning: automatically updating to profile %d to "
                  "match input format.\n",
                  stream->config.cfg.g_profile);
        }
        /* Set limit */
        stream->config.cfg.g_limit = global.limit;
      }
  
      FOREACH_STREAM(stream, streams) {
        set_stream_dimensions(stream, input.width, input.height);
      }
      FOREACH_STREAM(stream, streams) { validate_stream_config(stream, &global); }
  
      /* Ensure that --passes and --pass are consistent. If --pass is set and
       * --passes=2, ensure --fpf was set.
       */
      if (global.pass && global.passes == 2) {
        FOREACH_STREAM(stream, streams) {
          if (!stream->config.stats_fn)
            die("Stream %d: Must specify --fpf when --pass=%d"
                " and --passes=2\n",
                stream->index, global.pass);
        }
      }
  
  #if !CONFIG_WEBM_IO
      FOREACH_STREAM(stream, streams) {
        if (stream->config.write_webm) {
          stream->config.write_webm = 0;
          stream->config.write_ivf = 0;
          warn("aomenc compiled w/o WebM support. Writing OBU stream.");
        }
      }
  #endif
  
      /* Use the frame rate from the file only if none was specified
       * on the command-line.
       */
      if (!global.have_framerate) {
        global.framerate.num = input.framerate.numerator;
        global.framerate.den = input.framerate.denominator;
      }
      FOREACH_STREAM(stream, streams) {
        stream->config.cfg.g_timebase.den = global.framerate.num;
        stream->config.cfg.g_timebase.num = global.framerate.den;
      }
      /* Show configuration */
      if (global.verbose && pass == 0) {
        FOREACH_STREAM(stream, streams) {
          show_stream_config(stream, &global, &input);
        }
      }
  
      if (pass == (global.pass ? global.pass - 1 : 0)) {
        if (input.file_type == FILE_TYPE_Y4M)
          /*The Y4M reader does its own allocation.
            Just initialize this here to avoid problems if we never read any
            frames.*/
          memset(&raw, 0, sizeof(raw));
        else
          aom_img_alloc(&raw, input.fmt, input.width, input.height, 32);
  
        FOREACH_STREAM(stream, streams) {
          stream->rate_hist =
              init_rate_histogram(&stream->config.cfg, &global.framerate);
        }
      }
  
      FOREACH_STREAM(stream, streams) { setup_pass(stream, &global, pass); }
      FOREACH_STREAM(stream, streams) { initialize_encoder(stream, &global); }
      FOREACH_STREAM(stream, streams) {
        open_output_file(stream, &global, &input.pixel_aspect_ratio);
      }
  
      if (strcmp(global.codec->name, "av1") == 0 ||
          strcmp(global.codec->name, "av1") == 0) {
        // Check to see if at least one stream uses 16 bit internal.
        // Currently assume that the bit_depths for all streams using
        // highbitdepth are the same.
        FOREACH_STREAM(stream, streams) {
          if (stream->config.use_16bit_internal) {
            use_16bit_internal = 1;
          }
          input_shift = (int)stream->config.cfg.g_bit_depth -
                        stream->config.cfg.g_input_bit_depth;
        };
      }
  
      frame_avail = 1;
      got_data = 0;
  
      while (frame_avail || got_data) {
        struct aom_usec_timer timer;
  
        if (!global.limit || frames_in < global.limit) {
          frame_avail = read_frame(&input, &raw);
  
          if (frame_avail) frames_in++;
          seen_frames =
              frames_in > global.skip_frames ? frames_in - global.skip_frames : 0;
  
          if (!global.quiet) {
            float fps = usec_to_fps(cx_time, seen_frames);
            fprintf(stderr, "\rPass %d/%d ", pass + 1, global.passes);
  
            if (stream_cnt == 1)
              fprintf(stderr, "frame %4d/%-4d %7" PRId64 "B ", frames_in,
                      streams->frames_out, (int64_t)streams->nbytes);
            else
              fprintf(stderr, "frame %4d ", frames_in);
  
            fprintf(stderr, "%7" PRId64 " %s %.2f %s ",
                    cx_time > 9999999 ? cx_time / 1000 : cx_time,
                    cx_time > 9999999 ? "ms" : "us", fps >= 1.0 ? fps : fps * 60,
                    fps >= 1.0 ? "fps" : "fpm");
            print_time("ETA", estimated_time_left);
          }
  
        } else {
          frame_avail = 0;
        }
  
        if (frames_in > global.skip_frames) {
          aom_image_t *frame_to_encode;
          if (input_shift || (use_16bit_internal && input.bit_depth == 8)) {
            assert(use_16bit_internal);
            // Input bit depth and stream bit depth do not match, so up
            // shift frame to stream bit depth
            if (!allocated_raw_shift) {
              aom_img_alloc(&raw_shift, raw.fmt | AOM_IMG_FMT_HIGHBITDEPTH,
                            input.width, input.height, 32);
              allocated_raw_shift = 1;
            }
            aom_img_upshift(&raw_shift, &raw, input_shift);
            frame_to_encode = &raw_shift;
          } else {
            frame_to_encode = &raw;
          }
          aom_usec_timer_start(&timer);
          if (use_16bit_internal) {
            assert(frame_to_encode->fmt & AOM_IMG_FMT_HIGHBITDEPTH);
            FOREACH_STREAM(stream, streams) {
              if (stream->config.use_16bit_internal)
                encode_frame(stream, &global,
                             frame_avail ? frame_to_encode : NULL, frames_in);
              else
                assert(0);
            };
          } else {
            assert((frame_to_encode->fmt & AOM_IMG_FMT_HIGHBITDEPTH) == 0);
            FOREACH_STREAM(stream, streams) {
              encode_frame(stream, &global, frame_avail ? frame_to_encode : NULL,
                           frames_in);
            }
          }
          aom_usec_timer_mark(&timer);
          cx_time += aom_usec_timer_elapsed(&timer);
  
          FOREACH_STREAM(stream, streams) { update_quantizer_histogram(stream); }
  
          got_data = 0;
          FOREACH_STREAM(stream, streams) {
            get_cx_data(stream, &global, &got_data);
          }
  
          if (!got_data && input.length && streams != NULL &&
              !streams->frames_out) {
            lagged_count = global.limit ? seen_frames : ftello(input.file);
          } else if (input.length) {
            int64_t remaining;
            int64_t rate;
  
            if (global.limit) {
              const int64_t frame_in_lagged = (seen_frames - lagged_count) * 1000;
  
              rate = cx_time ? frame_in_lagged * (int64_t)1000000 / cx_time : 0;
              remaining = 1000 * (global.limit - global.skip_frames -
                                  seen_frames + lagged_count);
            } else {
              const int64_t input_pos = ftello(input.file);
              const int64_t input_pos_lagged = input_pos - lagged_count;
              const int64_t input_limit = input.length;
  
              rate = cx_time ? input_pos_lagged * (int64_t)1000000 / cx_time : 0;
              remaining = input_limit - input_pos + lagged_count;
            }
  
            average_rate =
                (average_rate <= 0) ? rate : (average_rate * 7 + rate) / 8;
            estimated_time_left = average_rate ? remaining / average_rate : -1;
          }
  
          if (got_data && global.test_decode != TEST_DECODE_OFF) {
            FOREACH_STREAM(stream, streams) {
              test_decode(stream, global.test_decode);
            }
          }
        }
  
        fflush(stdout);
        if (!global.quiet) fprintf(stderr, "\033[K");
      }
  
      if (stream_cnt > 1) fprintf(stderr, "\n");
  
      if (!global.quiet) {
        FOREACH_STREAM(stream, streams) {
          const int64_t bpf =
              seen_frames ? (int64_t)(stream->nbytes * 8 / seen_frames) : 0;
          const int64_t bps = bpf * global.framerate.num / global.framerate.den;
          fprintf(stderr,
                  "\rPass %d/%d frame %4d/%-4d %7" PRId64 "B %7" PRId64
                  "b/f %7" PRId64
                  "b/s"
                  " %7" PRId64 " %s (%.2f fps)\033[K\n",
                  pass + 1, global.passes, frames_in, stream->frames_out,
                  (int64_t)stream->nbytes, bpf, bps,
                  stream->cx_time > 9999999 ? stream->cx_time / 1000
                                            : stream->cx_time,
                  stream->cx_time > 9999999 ? "ms" : "us",
                  usec_to_fps(stream->cx_time, seen_frames));
        }
      }
  
      if (global.show_psnr) {
        if (global.codec->fourcc == AV1_FOURCC) {
          FOREACH_STREAM(stream, streams) {
            int64_t bps = 0;
            if (stream->psnr_count && seen_frames && global.framerate.den) {
              bps = (int64_t)stream->nbytes * 8 * (int64_t)global.framerate.num /
                    global.framerate.den / seen_frames;
            }
            show_psnr(stream, (1 << stream->config.cfg.g_input_bit_depth) - 1,
                      bps);
          }
        } else {
          FOREACH_STREAM(stream, streams) { show_psnr(stream, 255.0, 0); }
        }
      }
  
      FOREACH_STREAM(stream, streams) { aom_codec_destroy(&stream->encoder); }
  
      if (global.test_decode != TEST_DECODE_OFF) {
        FOREACH_STREAM(stream, streams) { aom_codec_destroy(&stream->decoder); }
      }
  
      close_input_file(&input);
  
      if (global.test_decode == TEST_DECODE_FATAL) {
        FOREACH_STREAM(stream, streams) { res |= stream->mismatch_seen; }
      }
      FOREACH_STREAM(stream, streams) {
        close_output_file(stream, global.codec->fourcc);
      }
  
      FOREACH_STREAM(stream, streams) {
        stats_close(&stream->stats, global.passes - 1);
      }
  
      if (global.pass) break;
    }
  
    if (global.show_q_hist_buckets) {
      FOREACH_STREAM(stream, streams) {
        show_q_histogram(stream->counts, global.show_q_hist_buckets);
      }
    }
  
    if (global.show_rate_hist_buckets) {
      FOREACH_STREAM(stream, streams) {
        show_rate_histogram(stream->rate_hist, &stream->config.cfg,
                            global.show_rate_hist_buckets);
      }
    }
    FOREACH_STREAM(stream, streams) { destroy_rate_histogram(stream->rate_hist); }
  
  #if CONFIG_INTERNAL_STATS
    /* TODO(jkoleszar): This doesn't belong in this executable. Do it for now,
     * to match some existing utilities.
     */
    if (!(global.pass == 1 && global.passes == 2)) {
      FOREACH_STREAM(stream, streams) {
        FILE *f = fopen("opsnr.stt", "a");
        if (stream->mismatch_seen) {
          fprintf(f, "First mismatch occurred in frame %d\n",
                  stream->mismatch_seen);
        } else {
          fprintf(f, "No mismatch detected in recon buffers\n");
        }
        fclose(f);
      }
    }
  #endif
  
    if (allocated_raw_shift) aom_img_free(&raw_shift);
    aom_img_free(&raw);
    free(argv);
    free(streams);
    return res ? EXIT_FAILURE : EXIT_SUCCESS;
  }
  