upipe/ubuf_block_mem.h header reference

Upipe ubuf manager for block formats with umem storage More

• upipe/ubase.h
• upipe/ubuf.h
• upipe/ubuf_block.h

• struct ubuf * ubuf_block_mem_alloc_from_pic(struct ubuf_mgr *mgr, struct ubuf *ubuf_pic, const char *chroma)
• struct ubuf * ubuf_block_mem_alloc_from_sound(struct ubuf_mgr *mgr, struct ubuf *ubuf_sound, const char *channel)
• struct ubuf_mgr * ubuf_block_mem_mgr_alloc(uint16_t ubuf_pool_depth, uint16_t shared_pool_depth, struct umem_mgr *umem_mgr, int prepend, int append, int align, int align_offset)

• UBUF_BLOCK_MEM_ALLOC_FROM_PIC
• UBUF_BLOCK_MEM_ALLOC_FROM_SOUND

Upipe ubuf manager for block formats with umem storage

This macro is declared in upipe/ubuf_block_mem.h source file, line 46.

This macro is the signature to use to allocate from an ubuf_pic plane.

This macro is declared in upipe/ubuf_block_mem.h source file, line 48.

This macro is the signature to use to allocate from an ubuf_sound plane.

This macro is declared in upipe/ubuf_block_mem.h source file, line 31.

This function is declared in upipe/ubuf_block_mem.h source file, line 61.

This function returns a new ubuf from the block mem allocator, using a chroma of a ubuf pic mem.

Parameter list:

• mgr: management structure for this ubuf type
• ubuf_pic: ubuf pic mem structure to use
• chroma: chroma type (see chroma reference)

The return value is pointer to ubuf or NULL in case of failure

This function is declared in upipe/ubuf_block_mem.h source file, line 75.

This function returns a new ubuf from the block mem allocator, using a plane of a ubuf sound mem.

Parameter list:

• mgr: management structure for this ubuf type
• ubuf_sound: ubuf sound mem structure to use
• channel: channel type (see channel reference)

The return value is pointer to ubuf or NULL in case of failure

This function is declared in upipe/ubuf_block_mem.h source file, line 97.

This function allocates a new instance of the ubuf manager for block formats using umem.

Parameter list:

• ubuf_pool_depth: maximum number of ubuf structures in the pool
• shared_pool_depth: maximum number of shared structures in the pool
• umem_mgr: memory allocator to use for buffers
• prepend: default minimum extra space before buffer (if set to -1, a default sensible value is used)
• append: extra space after buffer
• align: default alignment in octets (if set to -1, a default sensible value is used)
• align_offset: offset of the aligned octet, in octets (may be negative)

The return value is pointer to manager, or NULL in case of error