sti/delta/delta.h

1 /* SPDX-License-Identifier: GPL-2.0 */
11 #include <media/v4l2-device.h>
12 #include <media/v4l2-mem2mem.h>
14 #include "delta-cfg.h"
17  * enum delta_state - state of decoding instance
28  *	Decoding instance is ready to decode compressed access unit.
46  * struct delta_streaminfo - information about stream to decode
89  * struct delta_au - access unit structure.
94  * @vaddr:	virtual address (kernel can read/write)
95  * @paddr:	physical address (for hardware)
96  * @flags:	access unit type (V4L2_BUF_FLAG_KEYFRAME/PFRAME/BFRAME)
97  * @dts:	decoding timestamp of this access unit
112  * struct delta_frameinfo - information about decoded frame
153  * struct delta_frame - frame structure.
160  * @vaddr:	virtual address (kernel can read/write)
161  * @paddr:	physical address (for hardware)
193  * struct delta_dts - decoding timestamp.
227  * struct delta_dec - decoder structure.
244  * @decode:		decode a single access unit, see below
265 	 * setup_frame() - setup frame to be used by decoder
269 	 *  @frame.vaddr	(in) virtual address (kernel can read/write)
270 	 *  @frame.paddr	(in) physical address (for hardware)
280 	 * get_streaminfo() - get stream related infos
287 	 * explicitly header access unit or first access unit of bitstream.
288 	 * If no valid header is found, get_streaminfo will return -ENODATA,
289 	 * in this case the next bitstream access unit must be decoded till
296 	 * get_frameinfo() - get decoded frame related infos
306 	 * set_frameinfo() - set decoded frame related infos
312 	 * frame if decoder can do post-processing.
318 	 * decode() - decode a single access unit
320 	 * @au:		(in/out) access unit
322 	 *  @au.vaddr	(in) virtual address (kernel can read/write)
323 	 *  @au.paddr	(in) physical address (for hardware)
327 	 * Decode the access unit given. Decode is synchronous;
328 	 * access unit memory is no more needed after this call.
336 	 * get_frame() - get the next decoded frame available
346 	 * If no frame is available, -ENODATA is returned.
355 	 * recycle() - recycle the given frame
373 	 * flush() - flush decoder
385 	 * drain() - drain decoder
400  * struct delta_ctx - instance structure.
409  * @au_num:		access unit number
410  * @max_au_size:	max size of an access unit
418  * @dropped_frames:	nb of frames dropped (ie access unit not parsed
425  *			unit timestamps using this fifo.
468  * struct delta_dev - device struct, 1 per probe (so single one for
475  * @m2m_dev:		memory-to-memory V4L2 device
529 		return "-";  in frame_field_str()