upipe-blackmagic/ubuf_pic_blackmagic.h header reference
Upipe ubuf manager for picture formats with blackmagic storage More
Header inclusion [link]
Members [link]
Type [link]
- enum ubuf_pic_bmd_command
Functions [link]
- 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)
Macro [link]
Description [link]
Upipe ubuf manager for picture formats with blackmagic storage
Members detail [link]
#define UBUF_BMD_ALLOC_PICTURE [link]
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.
#define _UPIPE_BLACKMAGIC_UBUF_PIC_BLACKMAGIC_H_ [link]
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
enum ubuf_pic_bmd_command [link]
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.
| Identifier | Value | Description |
|---|---|---|
| UBUF_PIC_BMD_SENTINEL | 0x8000 | |
| UBUF_PIC_BMD_GET_VIDEO_FRAME | 1 | returns the blackmagic video frame (void **) |
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