1 #ifndef VIDDEC_PARSER_OPS_H
2 #define VIDDEC_PARSER_OPS_H
3
4 #include "viddec_fw_workload.h"
5
6 #define VIDDEC_PARSE_INVALID_POS 0xFFFFFFFF
7
8 typedef enum
9 {
10 VIDDEC_PARSE_EOS = 0x0FFF, /* Dummy start code to force EOS */
11 VIDDEC_PARSE_DISCONTINUITY, /* Dummy start code to force completion and flush */
12 }viddec_parser_inband_messages_t;
13
14 typedef struct
15 {
16 uint32_t context_size;
17 uint32_t persist_size;
18 }viddec_parser_memory_sizes_t;
19
20 typedef struct
21 {
22 void (*init)(void *ctxt, uint32_t *persist, uint32_t preserve);
23 uint32_t (*parse_sc) (void *ctxt, void *pcxt, void *sc_state);
24 uint32_t (*parse_syntax) (void *parent, void *ctxt);
25 void (*get_cxt_size) (viddec_parser_memory_sizes_t *size);
26 uint32_t (*is_wkld_done)(void *parent, void *ctxt, uint32_t next_sc, uint32_t *codec_specific_errors);
27 uint32_t (*is_frame_start)(void *ctxt);
28 uint32_t (*gen_contrib_tags)(void *parent, uint32_t ignore_partial);
29 uint32_t (*gen_assoc_tags)(void *parent);
30 }viddec_parser_ops_t;
31
32
33 typedef enum
34 {
35 VIDDEC_PARSE_ERROR = 0xF0,
36 VIDDEC_PARSE_SUCESS = 0xF1,
37 VIDDEC_PARSE_FRMDONE = 0xF2,
38 }viddec_parser_error_t;
39
40 /*
41 *
42 *Functions used by Parsers
43 *
44 */
45
46 /* This function returns the requested number of bits(<=32) and increments au byte position.
47 */
48 int32_t viddec_pm_get_bits(void *parent, uint32_t *data, uint32_t num_bits);
49
50 /* This function returns requested number of bits(<=32) with out incrementing au byte position
51 */
52 int32_t viddec_pm_peek_bits(void *parent, uint32_t *data, uint32_t num_bits);
53
54 /* This function skips requested number of bits(<=32) by incrementing au byte position.
55 */
56 int32_t viddec_pm_skip_bits(void *parent, uint32_t num_bits);
57
58 /* This function appends a work item to current workload.
59 */
60 int32_t viddec_pm_append_workitem(void *parent, viddec_workload_item_t *item);
61
62 /* This function appends a work item to next workload.
63 */
64 int32_t viddec_pm_append_workitem_next(void *parent, viddec_workload_item_t *item);
65
66 /* This function gets current byte and bit positions and information on whether an emulation byte is present after
67 current byte.
68 */
69 int32_t viddec_pm_get_au_pos(void *parent, uint32_t *bit, uint32_t *byte, unsigned char *is_emul);
70
71 /* This function appends Pixel tag to current work load starting from current position to end of au unit.
72 */
73 int32_t viddec_pm_append_pixeldata(void *parent);
74
75 /* This function appends Pixel tag to next work load starting from current position to end of au unit.
76 */
77 int32_t viddec_pm_append_pixeldata_next(void *parent);
78
79 /* This function provides the workload header for pasers to fill in attribute values
80 */
81 viddec_workload_t* viddec_pm_get_header(void *parent);
82
83 /* This function provides the next workload header for pasers to fill in attribute values
84 */
85 viddec_workload_t* viddec_pm_get_next_header(void *parent);
86
87 /* Returns the current byte value where offset is on */
88 uint32_t viddec_pm_get_cur_byte(void *parent, uint8_t *byte);
89
90 /* Tells us if there is more data that need to parse */
91 int32_t viddec_pm_is_nomoredata(void *parent);
92
93 /* This function appends misc tag to work load starting from start position to end position of au unit */
94 int32_t viddec_pm_append_misc_tags(void *parent, uint32_t start, uint32_t end, viddec_workload_item_t *wi, uint32_t using_next);
95
96 void viddec_pm_set_next_frame_error_on_eos(void *parent, uint32_t error);
97
98 void viddec_pm_set_late_frame_detect(void *parent);
99
viddec_fw_reset_workload_item(viddec_workload_item_t * wi)100 static inline void viddec_fw_reset_workload_item(viddec_workload_item_t *wi)
101 {
102 wi->vwi_payload[0] = wi->vwi_payload[1] = wi->vwi_payload[2] = 0;
103 }
104
105 void viddec_pm_setup_userdata(viddec_workload_item_t *wi);
106 #endif
107