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diff --git a/chromium/third_party/ffmpeg/libavformat/hevc.h b/chromium/third_party/ffmpeg/libavformat/hevc.h
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+++ b/chromium/third_party/ffmpeg/libavformat/hevc.h
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+/*
+ * Copyright (c) 2014 Tim Walker <tdskywalker@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * internal header for HEVC (de)muxer utilities
+ */
+
+#ifndef AVFORMAT_HEVC_H
+#define AVFORMAT_HEVC_H
+
+#include <stdint.h>
+#include "avio.h"
+
+/**
+ * Writes Annex B formatted HEVC NAL units to the provided AVIOContext.
+ *
+ * The NAL units are converted to an MP4-compatible format (start code prefixes
+ * are replaced by 4-byte size fields, as per ISO/IEC 14496-15).
+ *
+ * If filter_ps is non-zero, any HEVC parameter sets found in the input will be
+ * discarded, and *ps_count will be set to the number of discarded PS NAL units.
+ *
+ * @param pb address of the AVIOContext where the data shall be written
+ * @param buf_in address of the buffer holding the input data
+ * @param size size (in bytes) of the input buffer
+ * @param filter_ps whether to write parameter set NAL units to the output (0)
+ *        or to discard them (non-zero)
+ * @param ps_count address of the variable where the number of discarded
+ *        parameter set NAL units shall be written, may be NULL
+ * @return the amount (in bytes) of data written in case of success, a negative
+ *         value corresponding to an AVERROR code in case of failure
+ */
+int ff_hevc_annexb2mp4(AVIOContext *pb, const uint8_t *buf_in,
+                       int size, int filter_ps, int *ps_count);
+
+/**
+ * Writes Annex B formatted HEVC NAL units to a data buffer.
+ *
+ * The NAL units are converted to an MP4-compatible format (start code prefixes
+ * are replaced by 4-byte size fields, as per ISO/IEC 14496-15).
+ *
+ * If filter_ps is non-zero, any HEVC parameter sets found in the input will be
+ * discarded, and *ps_count will be set to the number of discarded PS NAL units.
+ *
+ * On output, *size holds the size (in bytes) of the output data buffer.
+ *
+ * @param buf_in address of the buffer holding the input data
+ * @param size address of the variable holding the size (in bytes) of the input
+ *        buffer (on input) and of the output buffer (on output)
+ * @param buf_out address of the variable holding the address of the output
+ *        buffer
+ * @param filter_ps whether to write parameter set NAL units to the output (0)
+ *        or to discard them (non-zero)
+ * @param ps_count address of the variable where the number of discarded
+ *        parameter set NAL units shall be written, may be NULL
+ * @return the amount (in bytes) of data written in case of success, a negative
+ *         value corresponding to an AVERROR code in case of failure
+ */
+int ff_hevc_annexb2mp4_buf(const uint8_t *buf_in, uint8_t **buf_out,
+                           int *size, int filter_ps, int *ps_count);
+
+/**
+ * Writes HEVC extradata (parameter sets, declarative SEI NAL units) to the
+ * provided AVIOContext.
+ *
+ * If the extradata is Annex B format, it gets converted to hvcC format before
+ * writing.
+ *
+ * @param pb address of the AVIOContext where the hvcC shall be written
+ * @param data address of the buffer holding the data needed to write the hvcC
+ * @param size size (in bytes) of the data buffer
+ * @param ps_array_completeness whether all parameter sets are in the hvcC (1)
+ *        or there may be additional parameter sets in the bitstream (0)
+ * @return >=0 in case of success, a negative value corresponding to an AVERROR
+ *         code in case of failure
+ */
+int ff_isom_write_hvcc(AVIOContext *pb, const uint8_t *data,
+                       int size, int ps_array_completeness);
+
+#endif /* AVFORMAT_HEVC_H */