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-rw-r--r--third_party/aom/common/ivfenc.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/third_party/aom/common/ivfenc.c b/third_party/aom/common/ivfenc.c
new file mode 100644
index 0000000000..64715f4d74
--- /dev/null
+++ b/third_party/aom/common/ivfenc.c
@@ -0,0 +1,52 @@
+/*
+ * 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 "common/ivfenc.h"
+
+#include "aom/aom_encoder.h"
+#include "aom_ports/mem_ops.h"
+
+void ivf_write_file_header(FILE *outfile, const struct aom_codec_enc_cfg *cfg,
+ unsigned int fourcc, int frame_cnt) {
+ char header[32];
+
+ header[0] = 'D';
+ header[1] = 'K';
+ header[2] = 'I';
+ header[3] = 'F';
+ mem_put_le16(header + 4, 0); // version
+ mem_put_le16(header + 6, 32); // header size
+ mem_put_le32(header + 8, fourcc); // fourcc
+ mem_put_le16(header + 12, cfg->g_w); // width
+ mem_put_le16(header + 14, cfg->g_h); // height
+ mem_put_le32(header + 16, cfg->g_timebase.den); // rate
+ mem_put_le32(header + 20, cfg->g_timebase.num); // scale
+ mem_put_le32(header + 24, frame_cnt); // length
+ mem_put_le32(header + 28, 0); // unused
+
+ fwrite(header, 1, 32, outfile);
+}
+
+void ivf_write_frame_header(FILE *outfile, int64_t pts, size_t frame_size) {
+ char header[12];
+
+ mem_put_le32(header, (int)frame_size);
+ mem_put_le32(header + 4, (int)(pts & 0xFFFFFFFF));
+ mem_put_le32(header + 8, (int)(pts >> 32));
+ fwrite(header, 1, 12, outfile);
+}
+
+void ivf_write_frame_size(FILE *outfile, size_t frame_size) {
+ char header[4];
+
+ mem_put_le32(header, (int)frame_size);
+ fwrite(header, 1, 4, outfile);
+}