Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 108 insertions, 0 deletions

diff --git a/third_party/aom/common/y4menc.c b/third_party/aom/common/y4menc.c
new file mode 100644
index 0000000000..25086a91d0
--- /dev/null
+++ b/third_party/aom/common/y4menc.c
@@ -0,0 +1,108 @@
+/*
+ * 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 <assert.h>
+
+#include "common/rawenc.h"
+#include "common/y4menc.h"
+
+// Returns the Y4M name associated with the monochrome colorspace.
+static const char *monochrome_colorspace(unsigned int bit_depth) {
+  switch (bit_depth) {
+    case 8: return "Cmono";
+    case 9: return "Cmono9";
+    case 10: return "Cmono10";
+    case 12: return "Cmono12";
+    case 16: return "Cmono16";
+    default: assert(0); return NULL;
+  }
+}
+
+// Return the Y4M name of the 8-bit colorspace, given the chroma position and
+// image format.
+static const char *colorspace8(aom_chroma_sample_position_t csp,
+                               aom_img_fmt_t fmt) {
+  switch (fmt) {
+    case AOM_IMG_FMT_I444: return "C444";
+    case AOM_IMG_FMT_I422: return "C422";
+    default:
+      if (csp == AOM_CSP_VERTICAL) {
+        return "C420mpeg2 XYSCSS=420MPEG2";
+      } else if (csp == AOM_CSP_COLOCATED) {
+        // Note that Y4M does not have a dedicated header for colocated chroma,
+        // and that FFMPEG interprets C420 as C420jpeg.
+        return "C420";
+      } else {
+        return "C420jpeg";
+      }
+  }
+}
+
+// Return the Y4M name of the colorspace, given the bit depth and image format.
+static const char *colorspace(unsigned int bit_depth,
+                              aom_chroma_sample_position_t csp,
+                              aom_img_fmt_t fmt) {
+  switch (bit_depth) {
+    case 8: return colorspace8(csp, fmt);
+    case 9:
+      return fmt == AOM_IMG_FMT_I44416   ? "C444p9 XYSCSS=444P9"
+             : fmt == AOM_IMG_FMT_I42216 ? "C422p9 XYSCSS=422P9"
+                                         : "C420p9 XYSCSS=420P9";
+    case 10:
+      return fmt == AOM_IMG_FMT_I44416   ? "C444p10 XYSCSS=444P10"
+             : fmt == AOM_IMG_FMT_I42216 ? "C422p10 XYSCSS=422P10"
+                                         : "C420p10 XYSCSS=420P10";
+    case 12:
+      return fmt == AOM_IMG_FMT_I44416   ? "C444p12 XYSCSS=444P12"
+             : fmt == AOM_IMG_FMT_I42216 ? "C422p12 XYSCSS=422P12"
+                                         : "C420p12 XYSCSS=420P12";
+    case 14:
+      return fmt == AOM_IMG_FMT_I44416   ? "C444p14 XYSCSS=444P14"
+             : fmt == AOM_IMG_FMT_I42216 ? "C422p14 XYSCSS=422P14"
+                                         : "C420p14 XYSCSS=420P14";
+    case 16:
+      return fmt == AOM_IMG_FMT_I44416   ? "C444p16 XYSCSS=444P16"
+             : fmt == AOM_IMG_FMT_I42216 ? "C422p16 XYSCSS=422P16"
+                                         : "C420p16 XYSCSS=420P16";
+    default: assert(0); return NULL;
+  }
+}
+
+int y4m_write_file_header(char *buf, size_t len, int width, int height,
+                          const struct AvxRational *framerate, int monochrome,
+                          aom_chroma_sample_position_t csp, aom_img_fmt_t fmt,
+                          unsigned int bit_depth, aom_color_range_t range) {
+  const char *color = monochrome ? monochrome_colorspace(bit_depth)
+                                 : colorspace(bit_depth, csp, fmt);
+  const char *color_range = "";  // Default assumption is studio range.
+  if (range == AOM_CR_FULL_RANGE) {
+    color_range = " XCOLORRANGE=FULL";
+  }
+  return snprintf(buf, len, "YUV4MPEG2 W%d H%d F%d:%d Ip %s%s\n", width, height,
+                  framerate->numerator, framerate->denominator, color,
+                  color_range);
+}
+
+int y4m_write_frame_header(char *buf, size_t len) {
+  return snprintf(buf, len, "FRAME\n");
+}
+
+void y4m_write_image_file(const aom_image_t *img, const int *planes,
+                          FILE *file) {
+  int num_planes = img->monochrome ? 1 : 3;
+  raw_write_image_file(img, planes, num_planes, file);
+}
+
+void y4m_update_image_md5(const aom_image_t *img, const int *planes,
+                          MD5Context *md5) {
+  int num_planes = img->monochrome ? 1 : 3;
+  raw_update_image_md5(img, planes, num_planes, md5);
+}