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Diffstat (limited to 'mfx_stub/bitstream.h')
| -rw-r--r-- | mfx_stub/bitstream.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/mfx_stub/bitstream.h b/mfx_stub/bitstream.h new file mode 100644 index 0000000..4a1faa2 --- /dev/null +++ b/mfx_stub/bitstream.h @@ -0,0 +1,46 @@ +/* + * Copyright (C) 2024 Mikhail Burakov. This file is part of receiver. + * + * receiver is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * receiver 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with receiver. If not, see <https://www.gnu.org/licenses/>. + */ + +#ifndef MFX_STUB_BITSTREAM_H_ +#define MFX_STUB_BITSTREAM_H_ + +#include <setjmp.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdint.h> + +#define BitstreamCreate(a, b) \ + (struct Bitstream) { .data = a, .size = b } +#define BitstreamReadFailed(x) setjmp((x)->trap) + +struct Bitstream { + const uint8_t* data; + size_t size; + size_t offset; + size_t epb_count; + uint32_t cache; + jmp_buf trap; +}; + +uint64_t BitstreamReadU(struct Bitstream* bitstream, size_t size); +uint64_t BitstreamReadUE(struct Bitstream* bitstream); +int64_t BitstreamReadSE(struct Bitstream* bitstream); +void BitstreamByteAlign(struct Bitstream* bitstream); +bool BitstreamReadNalu(struct Bitstream* bitstream, struct Bitstream* output); +bool BitstreamAvail(const struct Bitstream* bitstream); + +#endif // MFX_STUB_BITSTREAM_H_ |