upipe-blackmagic/ubuf_pic_blackmagic.h header reference

Upipe ubuf manager for picture formats with blackmagic storage More

• upipe/ubase.h
• upipe/ubuf.h
• upipe/ubuf_pic.h

• enum ubuf_pic_bmd_command

• struct ubuf * ubuf_pic_bmd_alloc(struct ubuf_mgr *mgr, void *VideoFrame)
• int ubuf_pic_bmd_get_video_frame(struct ubuf *ubuf, void **VideoFrame_p)
• struct ubuf_mgr * ubuf_pic_bmd_mgr_alloc(uint16_t ubuf_pool_depth, uint32_t PixelFormat)

• UBUF_BMD_ALLOC_PICTURE

Upipe ubuf manager for picture formats with blackmagic storage

This macro is declared in upipe-blackmagic/ubuf_pic_blackmagic.h source file, line 45.

This macro is a simple signature to make sure the ubuf_alloc internal API is used properly.

This macro is declared in upipe-blackmagic/ubuf_pic_blackmagic.h source file, line 31.

This function is declared in upipe-blackmagic/ubuf_pic_blackmagic.h source file, line 65.

This function returns a new ubuf from a blackmagic picture allocator.

Parameter list:

• mgr: management structure for this ubuf type
• VideoFrame: pointer to IDeckLinkVideoFrame

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

This enum is declared in upipe-blackmagic/ubuf_pic_blackmagic.h source file, line 50.

This enum extends ubuf_command with specific commands for blackmagic picture allocator.

This function is declared in upipe-blackmagic/ubuf_pic_blackmagic.h source file, line 78.

This function returns the blackmagic video frame. The reference counter is not incremented.

Parameter list:

• ubuf: pointer to ubuf
• VideoFrame_p: filled in with a pointer to IDeckLinkVideoFrame

The return value is an error code

This function is declared in upipe-blackmagic/ubuf_pic_blackmagic.h source file, line 91.

This function allocates a new instance of the ubuf manager for picture formats using blackmagic.

Parameter list:

• ubuf_pool_depth: maximum number of ubuf structures in the pool
• PixelFormat: blackmagic pixel format

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