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-rw-r--r--third_party/aom/y4menc.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/third_party/aom/y4menc.c b/third_party/aom/y4menc.c
new file mode 100644
index 000000000..b094f74fe
--- /dev/null
+++ b/third_party/aom/y4menc.c
@@ -0,0 +1,65 @@
+/*
+ * 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 "./y4menc.h"
+
+int y4m_write_file_header(char *buf, size_t len, int width, int height,
+ const struct AvxRational *framerate,
+ aom_img_fmt_t fmt, unsigned int bit_depth) {
+ const char *color;
+ switch (bit_depth) {
+ case 8:
+ color = fmt == AOM_IMG_FMT_444A
+ ? "C444alpha\n"
+ : fmt == AOM_IMG_FMT_I444
+ ? "C444\n"
+ : fmt == AOM_IMG_FMT_I422 ? "C422\n" : "C420jpeg\n";
+ break;
+ case 9:
+ color = fmt == AOM_IMG_FMT_I44416
+ ? "C444p9 XYSCSS=444P9\n"
+ : fmt == AOM_IMG_FMT_I42216 ? "C422p9 XYSCSS=422P9\n"
+ : "C420p9 XYSCSS=420P9\n";
+ break;
+ case 10:
+ color = fmt == AOM_IMG_FMT_I44416
+ ? "C444p10 XYSCSS=444P10\n"
+ : fmt == AOM_IMG_FMT_I42216 ? "C422p10 XYSCSS=422P10\n"
+ : "C420p10 XYSCSS=420P10\n";
+ break;
+ case 12:
+ color = fmt == AOM_IMG_FMT_I44416
+ ? "C444p12 XYSCSS=444P12\n"
+ : fmt == AOM_IMG_FMT_I42216 ? "C422p12 XYSCSS=422P12\n"
+ : "C420p12 XYSCSS=420P12\n";
+ break;
+ case 14:
+ color = fmt == AOM_IMG_FMT_I44416
+ ? "C444p14 XYSCSS=444P14\n"
+ : fmt == AOM_IMG_FMT_I42216 ? "C422p14 XYSCSS=422P14\n"
+ : "C420p14 XYSCSS=420P14\n";
+ break;
+ case 16:
+ color = fmt == AOM_IMG_FMT_I44416
+ ? "C444p16 XYSCSS=444P16\n"
+ : fmt == AOM_IMG_FMT_I42216 ? "C422p16 XYSCSS=422P16\n"
+ : "C420p16 XYSCSS=420P16\n";
+ break;
+ default: color = NULL; assert(0);
+ }
+ return snprintf(buf, len, "YUV4MPEG2 W%u H%u F%u:%u I%c %s", width, height,
+ framerate->numerator, framerate->denominator, 'p', color);
+}
+
+int y4m_write_frame_header(char *buf, size_t len) {
+ return snprintf(buf, len, "FRAME\n");
+}