From c04dcc2e7d834218ef2d4194331e383402495ae1 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 10 Apr 2024 20:07:22 +0200 Subject: Adding upstream version 2:20.4+dfsg. Signed-off-by: Daniel Baumann --- xbmc/utils/BitstreamReader.h | 49 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 xbmc/utils/BitstreamReader.h (limited to 'xbmc/utils/BitstreamReader.h') diff --git a/xbmc/utils/BitstreamReader.h b/xbmc/utils/BitstreamReader.h new file mode 100644 index 0000000..89fa2b2 --- /dev/null +++ b/xbmc/utils/BitstreamReader.h @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2017-2018 Team Kodi + * This file is part of Kodi - https://kodi.tv + * + * SPDX-License-Identifier: GPL-2.0-or-later + * See LICENSES/README.md for more information. + */ + +#pragma once + +#include + +class CBitstreamReader +{ +public: + CBitstreamReader(const uint8_t *buf, int len); + uint32_t ReadBits(int nbits); + void SkipBits(int nbits); + uint32_t GetBits(int nbits); + +private: + const uint8_t *buffer, *start; + int offbits, length, oflow; +}; + +const uint8_t* find_start_code(const uint8_t *p, const uint8_t *end, uint32_t *state); + +//////////////////////////////////////////////////////////////////////////////////////////// +//! @todo refactor this so as not to need these ffmpeg routines. +//! These are not exposed in ffmpeg's API so we dupe them here. + +/* + * AVC helper functions for muxers + * Copyright (c) 2006 Baptiste Coudurier + * This is part of FFmpeg + * + * SPDX-License-Identifier: LGPL-2.1-or-later + * See LICENSES/README.md for more information. + */ +constexpr uint32_t BS_RB24(const uint8_t* x) +{ + return (x[0] << 16) | (x[1] << 8) | x[2]; +} + +constexpr uint32_t BS_RB32(const uint8_t* x) +{ + return (x[1] << 24) | (x[1] << 16) | (x[2] << 8) | x[3]; +} + -- cgit v1.2.3