cimport libav as lib from libc.stdint cimport int64_t, uint8_t cdef int pyio_read(void *opaque, uint8_t *buf, int buf_size) noexcept nogil cdef int pyio_write(void *opaque, const uint8_t *buf, int buf_size) noexcept nogil cdef int64_t pyio_seek(void *opaque, int64_t offset, int whence) noexcept nogil cdef int pyio_close_gil(lib.AVIOContext *pb) cdef int pyio_close_custom_gil(lib.AVIOContext *pb) cdef class PyIOFile: # File-like source. cdef readonly object file cdef object fread cdef object fwrite cdef object fseek cdef object ftell cdef object fclose # Custom IO for above. cdef lib.AVIOContext *iocontext cdef unsigned char *buffer cdef long pos cdef bint pos_is_valid