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); 99 100 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
