libvpx: Pull from upstream

source/libvpx/examples/vp9_spatial_scalable_encoder.c

Index: source/libvpx/examples/vp9_spatial_scalable_encoder.c
===================================================================
--- source/libvpx/examples/vp9_spatial_scalable_encoder.c	(revision 271012)
+++ source/libvpx/examples/vp9_spatial_scalable_encoder.c	(working copy)
@@ -1,391 +0,0 @@
-/*
- *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-/*
- * This is an example demonstrating how to implement a multi-layer
- * VP9 encoding scheme based on spatial scalability for video applications
- * that benefit from a scalable bitstream.
- */
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <string.h>
-#include <time.h>
-
-#include "./args.h"
-#include "./tools_common.h"
-#include "./video_writer.h"
-
-#include "vpx/svc_context.h"
-#include "vpx/vp8cx.h"
-#include "vpx/vpx_encoder.h"
-#include "./vpxstats.h"
-
-static const struct arg_enum_list encoding_mode_enum[] = {
-  {"i", INTER_LAYER_PREDICTION_I},
-  {"alt-ip", ALT_INTER_LAYER_PREDICTION_IP},
-  {"ip", INTER_LAYER_PREDICTION_IP},
-  {"gf", USE_GOLDEN_FRAME},
-  {NULL, 0}
-};
-
-static const arg_def_t encoding_mode_arg = ARG_DEF_ENUM(
-    "m", "encoding-mode", 1, "Encoding mode algorithm", encoding_mode_enum);
-static const arg_def_t skip_frames_arg =
-    ARG_DEF("s", "skip-frames", 1, "input frames to skip");
-static const arg_def_t frames_arg =
-    ARG_DEF("f", "frames", 1, "number of frames to encode");
-static const arg_def_t width_arg = ARG_DEF("w", "width", 1, "source width");
-static const arg_def_t height_arg = ARG_DEF("h", "height", 1, "source height");
-static const arg_def_t timebase_arg =
-    ARG_DEF("t", "timebase", 1, "timebase (num/den)");
-static const arg_def_t bitrate_arg = ARG_DEF(
-    "b", "target-bitrate", 1, "encoding bitrate, in kilobits per second");
-static const arg_def_t layers_arg =
-    ARG_DEF("l", "layers", 1, "number of SVC layers");
-static const arg_def_t kf_dist_arg =
-    ARG_DEF("k", "kf-dist", 1, "number of frames between keyframes");
-static const arg_def_t scale_factors_arg =
-    ARG_DEF("r", "scale-factors", 1, "scale factors (lowest to highest layer)");
-static const arg_def_t quantizers_arg =
-    ARG_DEF("q", "quantizers", 1, "quantizers for non key frames, also will "
-            "be applied to key frames if -qn is not specified (lowest to "
-            "highest layer)");
-static const arg_def_t quantizers_keyframe_arg =
-    ARG_DEF("qn", "quantizers-keyframe", 1, "quantizers for key frames (lowest "
-        "to highest layer)");
-static const arg_def_t passes_arg =
-    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 =
-    ARG_DEF(NULL, "fpf", 1, "First pass statistics file name");
-static const arg_def_t min_q_arg =
-    ARG_DEF(NULL, "min-q", 1, "Minimum quantizer");
-static const arg_def_t max_q_arg =
-    ARG_DEF(NULL, "max-q", 1, "Maximum quantizer");
-static const arg_def_t min_bitrate_arg =
-    ARG_DEF(NULL, "min-bitrate", 1, "Minimum bitrate");
-static const arg_def_t max_bitrate_arg =
-    ARG_DEF(NULL, "max-bitrate", 1, "Maximum bitrate");
-
-static const arg_def_t *svc_args[] = {
-  &encoding_mode_arg, &frames_arg,        &width_arg,       &height_arg,
-  &timebase_arg,      &bitrate_arg,       &skip_frames_arg, &layers_arg,
-  &kf_dist_arg,       &scale_factors_arg, &quantizers_arg,
-  &quantizers_keyframe_arg,               &passes_arg,      &pass_arg,
-  &fpf_name_arg,      &min_q_arg,         &max_q_arg,       &min_bitrate_arg,
-  &max_bitrate_arg,   NULL
-};
-
-static const SVC_ENCODING_MODE default_encoding_mode =
-    INTER_LAYER_PREDICTION_IP;
-static const uint32_t default_frames_to_skip = 0;
-static const uint32_t default_frames_to_code = 60 * 60;
-static const uint32_t default_width = 1920;
-static const uint32_t default_height = 1080;
-static const uint32_t default_timebase_num = 1;
-static const uint32_t default_timebase_den = 60;
-static const uint32_t default_bitrate = 1000;
-static const uint32_t default_spatial_layers = 5;
-static const uint32_t default_kf_dist = 100;
-
-typedef struct {
-  const char *input_filename;
-  const char *output_filename;
-  uint32_t frames_to_code;
-  uint32_t frames_to_skip;
-  struct VpxInputContext input_ctx;
-  stats_io_t rc_stats;
-  int passes;
-  int pass;
-} AppInput;
-
-static const char *exec_name;
-
-void usage_exit() {
-  fprintf(stderr, "Usage: %s <options> input_filename output_filename\n",
-          exec_name);
-  fprintf(stderr, "Options:\n");
-  arg_show_usage(stderr, svc_args);
-  exit(EXIT_FAILURE);
-}
-
-static void parse_command_line(int argc, const char **argv_,
-                               AppInput *app_input, SvcContext *svc_ctx,
-                               vpx_codec_enc_cfg_t *enc_cfg) {
-  struct arg arg = {0};
-  char **argv = NULL;
-  char **argi = NULL;
-  char **argj = NULL;
-  vpx_codec_err_t res;
-  int passes = 0;
-  int pass = 0;
-  const char *fpf_file_name = NULL;
-  unsigned int min_bitrate = 0;
-  unsigned int max_bitrate = 0;
-
-  // initialize SvcContext with parameters that will be passed to vpx_svc_init
-  svc_ctx->log_level = SVC_LOG_DEBUG;
-  svc_ctx->spatial_layers = default_spatial_layers;
-  svc_ctx->encoding_mode = default_encoding_mode;
-
-  // start with default encoder configuration
-  res = vpx_codec_enc_config_default(vpx_codec_vp9_cx(), enc_cfg, 0);
-  if (res) {
-    die("Failed to get config: %s\n", vpx_codec_err_to_string(res));
-  }
-  // update enc_cfg with app default values
-  enc_cfg->g_w = default_width;
-  enc_cfg->g_h = default_height;
-  enc_cfg->g_timebase.num = default_timebase_num;
-  enc_cfg->g_timebase.den = default_timebase_den;
-  enc_cfg->rc_target_bitrate = default_bitrate;
-  enc_cfg->kf_min_dist = default_kf_dist;
-  enc_cfg->kf_max_dist = default_kf_dist;
-
-  // initialize AppInput with default values
-  app_input->frames_to_code = default_frames_to_code;
-  app_input->frames_to_skip = default_frames_to_skip;
-
-  // process command line options
-  argv = argv_dup(argc - 1, argv_ + 1);
-  for (argi = argj = argv; (*argj = *argi); argi += arg.argv_step) {
-    arg.argv_step = 1;
-
-    if (arg_match(&arg, &encoding_mode_arg, argi)) {
-      svc_ctx->encoding_mode = arg_parse_enum_or_int(&arg);
-    } else if (arg_match(&arg, &frames_arg, argi)) {
-      app_input->frames_to_code = arg_parse_uint(&arg);
-    } else if (arg_match(&arg, &width_arg, argi)) {
-      enc_cfg->g_w = arg_parse_uint(&arg);
-    } else if (arg_match(&arg, &height_arg, argi)) {
-      enc_cfg->g_h = arg_parse_uint(&arg);
-    } else if (arg_match(&arg, &timebase_arg, argi)) {
-      enc_cfg->g_timebase = arg_parse_rational(&arg);
-    } else if (arg_match(&arg, &bitrate_arg, argi)) {
-      enc_cfg->rc_target_bitrate = arg_parse_uint(&arg);
-    } else if (arg_match(&arg, &skip_frames_arg, argi)) {
-      app_input->frames_to_skip = arg_parse_uint(&arg);
-    } else if (arg_match(&arg, &layers_arg, argi)) {
-      svc_ctx->spatial_layers = arg_parse_uint(&arg);
-    } else if (arg_match(&arg, &kf_dist_arg, argi)) {
-      enc_cfg->kf_min_dist = arg_parse_uint(&arg);
-      enc_cfg->kf_max_dist = enc_cfg->kf_min_dist;
-    } else if (arg_match(&arg, &scale_factors_arg, argi)) {
-      vpx_svc_set_scale_factors(svc_ctx, arg.val);
-    } else if (arg_match(&arg, &quantizers_arg, argi)) {
-      vpx_svc_set_quantizers(svc_ctx, arg.val, 0);
-    } else if (arg_match(&arg, &quantizers_keyframe_arg, argi)) {
-      vpx_svc_set_quantizers(svc_ctx, arg.val, 1);
-    } else if (arg_match(&arg, &passes_arg, argi)) {
-      passes = arg_parse_uint(&arg);
-      if (passes < 1 || passes > 2) {
-        die("Error: Invalid number of passes (%d)\n", passes);
-      }
-    } else if (arg_match(&arg, &pass_arg, argi)) {
-      pass = arg_parse_uint(&arg);
-      if (pass < 1 || pass > 2) {
-        die("Error: Invalid pass selected (%d)\n", pass);
-      }
-    } else if (arg_match(&arg, &fpf_name_arg, argi)) {
-      fpf_file_name = arg.val;
-    } else if (arg_match(&arg, &min_q_arg, argi)) {
-      enc_cfg->rc_min_quantizer = arg_parse_uint(&arg);
-    } else if (arg_match(&arg, &max_q_arg, argi)) {
-      enc_cfg->rc_max_quantizer = arg_parse_uint(&arg);
-    } else if (arg_match(&arg, &min_bitrate_arg, argi)) {
-      min_bitrate = arg_parse_uint(&arg);
-    } else if (arg_match(&arg, &max_bitrate_arg, argi)) {
-      max_bitrate = arg_parse_uint(&arg);
-    } else {
-      ++argj;
-    }
-  }
-
-  if (passes == 0 || passes == 1) {
-    if (pass) {
-      fprintf(stderr, "pass is ignored since there's only one pass\n");
-    }
-    enc_cfg->g_pass = VPX_RC_ONE_PASS;
-  } else {
-    if (pass == 0) {
-      die("pass must be specified when passes is 2\n");
-    }
-
-    if (fpf_file_name == NULL) {
-      die("fpf must be specified when passes is 2\n");
-    }
-
-    if (pass == 1) {
-      enc_cfg->g_pass = VPX_RC_FIRST_PASS;
-      if (!stats_open_file(&app_input->rc_stats, fpf_file_name, 0)) {
-        fatal("Failed to open statistics store");
-      }
-    } else {
-      enc_cfg->g_pass = VPX_RC_LAST_PASS;
-      if (!stats_open_file(&app_input->rc_stats, fpf_file_name, 1)) {
-        fatal("Failed to open statistics store");
-      }
-      enc_cfg->rc_twopass_stats_in = stats_get(&app_input->rc_stats);
-    }
-    app_input->passes = passes;
-    app_input->pass = pass;
-  }
-
-  if (enc_cfg->rc_target_bitrate > 0) {
-    if (min_bitrate > 0) {
-      enc_cfg->rc_2pass_vbr_minsection_pct =
-          min_bitrate * 100 / enc_cfg->rc_target_bitrate;
-    }
-    if (max_bitrate > 0) {
-      enc_cfg->rc_2pass_vbr_maxsection_pct =
-          max_bitrate * 100 / enc_cfg->rc_target_bitrate;
-    }
-  }
-
-  // Check for unrecognized options
-  for (argi = argv; *argi; ++argi)
-    if (argi[0][0] == '-' && strlen(argi[0]) > 1)
-      die("Error: Unrecognized option %s\n", *argi);
-
-  if (argv[0] == NULL || argv[1] == 0) {
-    usage_exit();
-  }
-  app_input->input_filename = argv[0];
-  app_input->output_filename = argv[1];
-  free(argv);
-
-  if (enc_cfg->g_w < 16 || enc_cfg->g_w % 2 || enc_cfg->g_h < 16 ||
-      enc_cfg->g_h % 2)
-    die("Invalid resolution: %d x %d\n", enc_cfg->g_w, enc_cfg->g_h);
-
-  printf(
-      "Codec %s\nframes: %d, skip: %d\n"
-      "mode: %d, layers: %d\n"
-      "width %d, height: %d,\n"
-      "num: %d, den: %d, bitrate: %d,\n"
-      "gop size: %d\n",
-      vpx_codec_iface_name(vpx_codec_vp9_cx()), app_input->frames_to_code,
-      app_input->frames_to_skip, svc_ctx->encoding_mode,
-      svc_ctx->spatial_layers, enc_cfg->g_w, enc_cfg->g_h,
-      enc_cfg->g_timebase.num, enc_cfg->g_timebase.den,
-      enc_cfg->rc_target_bitrate, enc_cfg->kf_max_dist);
-}
-
-int main(int argc, const char **argv) {
-  AppInput app_input = {0};
-  VpxVideoWriter *writer = NULL;
-  VpxVideoInfo info = {0};
-  vpx_codec_ctx_t codec;
-  vpx_codec_enc_cfg_t enc_cfg;
-  SvcContext svc_ctx;
-  uint32_t i;
-  uint32_t frame_cnt = 0;
-  vpx_image_t raw;
-  vpx_codec_err_t res;
-  int pts = 0;            /* PTS starts at 0 */
-  int frame_duration = 1; /* 1 timebase tick per frame */
-  FILE *infile = NULL;
-  int end_of_stream = 0;
-
-  memset(&svc_ctx, 0, sizeof(svc_ctx));
-  svc_ctx.log_print = 1;
-  exec_name = argv[0];
-  parse_command_line(argc, argv, &app_input, &svc_ctx, &enc_cfg);
-
-  // Allocate image buffer
-  if (!vpx_img_alloc(&raw, VPX_IMG_FMT_I420, enc_cfg.g_w, enc_cfg.g_h, 32))
-    die("Failed to allocate image %dx%d\n", enc_cfg.g_w, enc_cfg.g_h);
-
-  if (!(infile = fopen(app_input.input_filename, "rb")))
-    die("Failed to open %s for reading\n", app_input.input_filename);
-
-  // Initialize codec
-  if (vpx_svc_init(&svc_ctx, &codec, vpx_codec_vp9_cx(), &enc_cfg) !=
-      VPX_CODEC_OK)
-    die("Failed to initialize encoder\n");
-
-  info.codec_fourcc = VP9_FOURCC;
-  info.time_base.numerator = enc_cfg.g_timebase.num;
-  info.time_base.denominator = enc_cfg.g_timebase.den;
-  if (vpx_svc_get_layer_resolution(&svc_ctx, svc_ctx.spatial_layers - 1,
-                                   (unsigned int *)&info.frame_width,
-                                   (unsigned int *)&info.frame_height) !=
-      VPX_CODEC_OK) {
-    die("Failed to get output resolution");
-  }
-
-  if (!(app_input.passes == 2 && app_input.pass == 1)) {
-    // We don't save the bitstream for the 1st pass on two pass rate control
-    writer = vpx_video_writer_open(app_input.output_filename, kContainerIVF,
-                                   &info);
-    if (!writer)
-      die("Failed to open %s for writing\n", app_input.output_filename);
-  }
-
-  // skip initial frames
-  for (i = 0; i < app_input.frames_to_skip; ++i)
-    vpx_img_read(&raw, infile);
-
-  // Encode frames
-  while (!end_of_stream) {
-    if (frame_cnt >= app_input.frames_to_code || !vpx_img_read(&raw, infile)) {
-      // We need one extra vpx_svc_encode call at end of stream to flush
-      // encoder and get remaining data
-      end_of_stream = 1;
-    }
-
-    res = vpx_svc_encode(&svc_ctx, &codec, (end_of_stream ? NULL : &raw),
-                         pts, frame_duration, VPX_DL_GOOD_QUALITY);
-    printf("%s", vpx_svc_get_message(&svc_ctx));
-    if (res != VPX_CODEC_OK) {
-      die_codec(&codec, "Failed to encode frame");
-    }
-    if (!(app_input.passes == 2 && app_input.pass == 1)) {
-      if (vpx_svc_get_frame_size(&svc_ctx) > 0) {
-        vpx_video_writer_write_frame(writer,
-                                     vpx_svc_get_buffer(&svc_ctx),
-                                     vpx_svc_get_frame_size(&svc_ctx),
-                                     pts);
-      }
-    }
-    if (vpx_svc_get_rc_stats_buffer_size(&svc_ctx) > 0) {
-      stats_write(&app_input.rc_stats,
-                  vpx_svc_get_rc_stats_buffer(&svc_ctx),
-                  vpx_svc_get_rc_stats_buffer_size(&svc_ctx));
-    }
-    if (!end_of_stream) {
-      ++frame_cnt;
-      pts += frame_duration;
-    }
-  }
-
-  printf("Processed %d frames\n", frame_cnt);
-
-  fclose(infile);
-  if (vpx_codec_destroy(&codec)) die_codec(&codec, "Failed to destroy codec");
-
-  if (app_input.passes == 2)
-    stats_close(&app_input.rc_stats, 1);
-
-  if (writer) {
-    vpx_video_writer_close(writer);
-  }
-
-  vpx_img_free(&raw);
-
-  // display average size, psnr
-  printf("%s", vpx_svc_dump_statistics(&svc_ctx));
-
-  vpx_svc_release(&svc_ctx);
-
-  return EXIT_SUCCESS;
-}