Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/examples/vp9_spatial_svc_encoder.c

Index: third_party/libvpx/source/libvpx/examples/vp9_spatial_svc_encoder.c
diff --git a/third_party/libvpx/source/libvpx/examples/vp9_spatial_svc_encoder.c b/third_party/libvpx/source/libvpx/examples/vp9_spatial_svc_encoder.c
new file mode 100644
index 0000000000000000000000000000000000000000..f4deb693b2f8c4061aebefe385f627c41f65f549
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/examples/vp9_spatial_svc_encoder.c
@@ -0,0 +1,448 @@
+/*
+ *  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 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 spatial_layers_arg =
+    ARG_DEF("sl", "spatial-layers", 1, "number of spatial SVC layers");
+static const arg_def_t temporal_layers_arg =
+    ARG_DEF("tl", "temporal-layers", 1, "number of temporal 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 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 lag_in_frame_arg =
+    ARG_DEF(NULL, "lag-in-frames", 1, "Number of frame to input before "
+        "generating any outputs");
+static const arg_def_t rc_end_usage_arg =
+    ARG_DEF(NULL, "rc-end-usage", 1, "0 - 3: VBR, CBR, CQ, Q");
+
+#if CONFIG_VP9_HIGHBITDEPTH
+static const struct arg_enum_list bitdepth_enum[] = {
+  {"8",  VPX_BITS_8},
+  {"10", VPX_BITS_10},
+  {"12", VPX_BITS_12},
+  {NULL, 0}
+};
+
+static const arg_def_t bitdepth_arg =
+    ARG_DEF_ENUM("d", "bit-depth", 1, "Bit depth for codec 8, 10 or 12. ",
+                 bitdepth_enum);
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+
+
+static const arg_def_t *svc_args[] = {
+  &frames_arg,        &width_arg,         &height_arg,
+  &timebase_arg,      &bitrate_arg,       &skip_frames_arg, &spatial_layers_arg,
+  &kf_dist_arg,       &scale_factors_arg, &passes_arg,      &pass_arg,
+  &fpf_name_arg,      &min_q_arg,         &max_q_arg,       &min_bitrate_arg,
+  &max_bitrate_arg,   &temporal_layers_arg,                 &lag_in_frame_arg,
+#if CONFIG_VP9_HIGHBITDEPTH
+  &bitdepth_arg,
+#endif
+  &rc_end_usage_arg,  NULL
+};
+
+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_temporal_layers = 1;
+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;
+  char string_options[1024] = {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->temporal_layers = default_temporal_layers;
+
+  // 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;
+  enc_cfg->rc_end_usage = VPX_CQ;
+
+  // 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, &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, &spatial_layers_arg, argi)) {
+      svc_ctx->spatial_layers = arg_parse_uint(&arg);
+    } else if (arg_match(&arg, &temporal_layers_arg, argi)) {
+      svc_ctx->temporal_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)) {
+      snprintf(string_options, sizeof(string_options), "%s scale-factors=%s",
+               string_options, arg.val);
+    } 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)) {
+      snprintf(string_options, sizeof(string_options), "%s min-quantizers=%s",
+               string_options, arg.val);
+    } else if (arg_match(&arg, &max_q_arg, argi)) {
+      snprintf(string_options, sizeof(string_options), "%s max-quantizers=%s",
+               string_options, arg.val);
+    } 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 if (arg_match(&arg, &lag_in_frame_arg, argi)) {
+      enc_cfg->g_lag_in_frames = arg_parse_uint(&arg);
+    } else if (arg_match(&arg, &rc_end_usage_arg, argi)) {
+      enc_cfg->rc_end_usage = arg_parse_uint(&arg);
+#if CONFIG_VP9_HIGHBITDEPTH
+    } else if (arg_match(&arg, &bitdepth_arg, argi)) {
+      enc_cfg->g_bit_depth = arg_parse_enum_or_int(&arg);
+      switch (enc_cfg->g_bit_depth) {
+        case VPX_BITS_8:
+          enc_cfg->g_input_bit_depth = 8;
+          enc_cfg->g_profile = 0;
+          break;
+        case VPX_BITS_10:
+          enc_cfg->g_input_bit_depth = 10;
+          enc_cfg->g_profile = 2;
+          break;
+         case VPX_BITS_12:
+          enc_cfg->g_input_bit_depth = 12;
+          enc_cfg->g_profile = 2;
+          break;
+        default:
+          die("Error: Invalid bit depth selected (%d)\n", enc_cfg->g_bit_depth);
+          break;
+      }
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+    } else {
+      ++argj;
+    }
+  }
+
+  // There will be a space in front of the string options
+  if (strlen(string_options) > 0)
+    vpx_svc_set_options(svc_ctx, string_options + 1);
+
+  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"
+      "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->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;
+  int frames_received = 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 CONFIG_VP9_HIGHBITDEPTH
+  if (!vpx_img_alloc(&raw, enc_cfg.g_input_bit_depth == 8 ?
+                         VPX_IMG_FMT_I420 : VPX_IMG_FMT_I42016,
+                     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);
+  }
+#else
+  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);
+  }
+#endif  // CONFIG_VP9_HIGHBITDEPTH
+
+  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 (!(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) {
+    vpx_codec_iter_t iter = NULL;
+    const vpx_codec_cx_pkt_t *cx_pkt;
+    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");
+    }
+
+    while ((cx_pkt = vpx_codec_get_cx_data(&codec, &iter)) != NULL) {
+      switch (cx_pkt->kind) {
+        case VPX_CODEC_CX_FRAME_PKT: {
+          if (cx_pkt->data.frame.sz > 0)
+            vpx_video_writer_write_frame(writer,
+                                         cx_pkt->data.frame.buf,
+                                         cx_pkt->data.frame.sz,
+                                         cx_pkt->data.frame.pts);
+
+          printf("SVC frame: %d, kf: %d, size: %d, pts: %d\n", frames_received,
+                 !!(cx_pkt->data.frame.flags & VPX_FRAME_IS_KEY),
+                 (int)cx_pkt->data.frame.sz, (int)cx_pkt->data.frame.pts);
+          ++frames_received;
+          break;
+        }
+        case VPX_CODEC_STATS_PKT: {
+          stats_write(&app_input.rc_stats,
+                      cx_pkt->data.twopass_stats.buf,
+                      cx_pkt->data.twopass_stats.sz);
+          break;
+        }
+        default: {
+          break;
+        }
+      }
+    }
+
+    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;
+}