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#ifndef H264_UTILS_H
#define H264_UTILS_H
/*========================================================================
O p e n M M
U t i l i t i e s a n d H e l p e r R o u t i n e s
*//** @file H264_Utils.h
This module contains H264 video decoder utilities and helper routines.
*//*====================================================================== */
/* =======================================================================
INCLUDE FILES FOR MODULE
========================================================================== */
#include <stdio.h>
#include "Map.h"
#include "qtypes.h"
#include "OMX_Core.h"
#include "OMX_QCOMExtns.h"
#define STD_MIN(x,y) (((x) < (y)) ? (x) : (y))
#define OMX_CORE_720P_HEIGHT 720
#define OMX_CORE_720P_WIDTH 1280
#define PANSCAN_HDLR
/* =======================================================================
DATA DECLARATIONS
========================================================================== */
/* -----------------------------------------------------------------------
** Constant / Define Declarations
** ----------------------------------------------------------------------- */
// Common format block header definitions
#define MT_VIDEO_META_STREAM_HEADER 0x00
#define MT_VIDEO_MEDIA_STREAM_HEADER 0x01
#define MT_VIDEO_META_MEDIA_STREAM_HEADER 0x02
// H.264 format block header definitions
#define MT_VIDEO_H264_ACCESS_UNIT_FORMAT 0x00
#define MT_VIDEO_H264_NAL_FORMT 0x01
#define MT_VIDEO_H264_BYTE_FORMAT 0x02
#define MT_VIDEO_H264_BYTE_STREAM_FORMAT 0x00
#define MT_VIDEO_H264_NAL_UNIT_STREAM_FORMAT 0x01
#define MT_VIDEO_H264_FORMAT_BLOCK_HEADER_SIZE 18
// MPEG-4 format block header definitions
#define MT_VIDEO_MPEG4_VOP_FORMAT 0x00
#define MT_VIDEO_MPEG4_SLICE_FORMAT 0x01
#define MT_VIDEO_MPEG4_BYTE_FORMAT 0x02
#define MT_VIDEO_MPEG4_FORMAT_BLOCK_HEADER_SIZE 15
// H.263 format block header definitions
#define MT_VIDEO_H263_PICTURE_FORMAT 0x00
#define MT_VIDEO_H263_GOB_FORMAT 0x01
#define MT_VIDEO_H263_SLICE_STRUCTURED_FORMAT 0x02
#define MT_VIDEO_H263_BYTE_FORMAT 0x03
#define MT_VIDEO_H263_FORMAT_BLOCK_HEADER_SIZE 16
/* =======================================================================
** Function Declarations
** ======================================================================= */
/* -----------------------------------------------------------------------
** Type Declarations
** ----------------------------------------------------------------------- */
// This type is used when parsing an H.264 bitstream to collect H.264 NAL
// units that need to go in the meta data.
struct H264ParamNalu {
uint32 picSetID;
uint32 seqSetID;
uint32 picOrderCntType;
bool frameMbsOnlyFlag;
bool picOrderPresentFlag;
uint32 picWidthInMbsMinus1;
uint32 picHeightInMapUnitsMinus1;
uint32 log2MaxFrameNumMinus4;
uint32 log2MaxPicOrderCntLsbMinus4;
bool deltaPicOrderAlwaysZeroFlag;
//std::vector<uint8> nalu;
uint32 nalu;
uint32 crop_left;
uint32 crop_right;
uint32 crop_top;
uint32 crop_bot;
};
//typedef map<uint32, H264ParamNalu> H264ParamNaluSet;
typedef Map<uint32, H264ParamNalu *> H264ParamNaluSet;
typedef enum {
NALU_TYPE_UNSPECIFIED = 0,
NALU_TYPE_NON_IDR,
NALU_TYPE_PARTITION_A,
NALU_TYPE_PARTITION_B,
NALU_TYPE_PARTITION_C,
NALU_TYPE_IDR,
NALU_TYPE_SEI,
NALU_TYPE_SPS,
NALU_TYPE_PPS,
NALU_TYPE_ACCESS_DELIM,
NALU_TYPE_EOSEQ,
NALU_TYPE_EOSTREAM,
NALU_TYPE_FILLER_DATA,
NALU_TYPE_RESERVED,
} NALU_TYPE;
// NAL header information
typedef struct {
uint32 nal_ref_idc;
uint32 nalu_type;
uint32 forbidden_zero_bit;
} NALU;
// This structure contains persistent information about an H.264 stream as it
// is parsed.
//struct H264StreamInfo {
// H264ParamNaluSet pic;
// H264ParamNaluSet seq;
//};
class extra_data_parser;
class RbspParser
/******************************************************************************
** This class is used to convert an H.264 NALU (network abstraction layer
** unit) into RBSP (raw byte sequence payload) and extract bits from it.
*****************************************************************************/
{
public:
RbspParser (const uint8 *begin, const uint8 *end);
virtual ~RbspParser ();
uint32 next ();
void advance ();
uint32 u (uint32 n);
uint32 ue ();
int32 se ();
private:
const uint8 *begin, *end;
int32 pos;
uint32 bit;
uint32 cursor;
bool advanceNeeded;
};
class H264_Utils
{
public:
H264_Utils();
~H264_Utils();
void initialize_frame_checking_environment();
void allocate_rbsp_buffer(uint32 inputBufferSize);
bool isNewFrame(OMX_BUFFERHEADERTYPE *p_buf_hdr,
OMX_IN OMX_U32 size_of_nal_length_field,
OMX_OUT OMX_BOOL &isNewFrame);
uint32 nalu_type;
private:
boolean extract_rbsp(OMX_IN OMX_U8 *buffer,
OMX_IN OMX_U32 buffer_length,
OMX_IN OMX_U32 size_of_nal_length_field,
OMX_OUT OMX_U8 *rbsp_bistream,
OMX_OUT OMX_U32 *rbsp_length,
OMX_OUT NALU *nal_unit);
unsigned m_height;
unsigned m_width;
H264ParamNaluSet pic;
H264ParamNaluSet seq;
uint8 *m_rbspBytes;
NALU m_prv_nalu;
bool m_forceToStichNextNAL;
bool m_au_data;
};
class perf_metrics
{
public:
perf_metrics() :
start_time(0),
proc_time(0),
active(false)
{
};
~perf_metrics() {};
void start();
void stop();
void end(OMX_U32 units_cntr = 0);
void reset();
OMX_U64 processing_time_us();
private:
inline OMX_U64 get_act_time();
OMX_U64 start_time;
OMX_U64 proc_time;
bool active;
};
#define EMULATION_PREVENTION_THREE_BYTE 0x03
#define MAX_CPB_COUNT 32
#define NO_PAN_SCAN_BIT 0x00000100
#define MAX_PAN_SCAN_RECT 3
#define VALID_TS(ts) ((ts < LLONG_MAX)? true : false)
#define NALU_TYPE_VUI (NALU_TYPE_RESERVED + 1)
enum SEI_PAYLOAD_TYPE
{
BUFFERING_PERIOD = 0,
PIC_TIMING,
PAN_SCAN_RECT,
FILLER_PAYLOAD,
USER_DATA_REGISTERED_ITU_T_T35,
USER_DATA_UNREGISTERED,
RECOVERY_POINT,
DEC_REF_PIC_MARKING_REPETITION,
SPARE_PIC,
SCENE_INFO,
SUB_SEQ_INFO,
SUB_SEQ_LAYER_CHARACTERISTICS,
SUB_SEQ_CHARACTERISTICS,
FULL_FRAME_FREEZE,
FULL_FRAME_FREEZE_RELEASE,
FULL_FRAME_SNAPSHOT,
PROGRESSIVE_REFINEMENT_SEGMENT_START,
PROGRESSIVE_REFINEMENT_SEGMENT_END,
SEI_PAYLOAD_FRAME_PACKING_ARRANGEMENT = 0x2D
};
typedef struct
{
OMX_U32 cpb_cnt;
OMX_U8 bit_rate_scale;
OMX_U8 cpb_size_scale;
OMX_U32 bit_rate_value[MAX_CPB_COUNT];
OMX_U32 cpb_size_value[MAX_CPB_COUNT];
OMX_U8 cbr_flag[MAX_CPB_COUNT];
OMX_U8 initial_cpb_removal_delay_length;
OMX_U8 cpb_removal_delay_length;
OMX_U8 dpb_output_delay_length;
OMX_U8 time_offset_length;
} h264_hrd_param;
typedef struct
{
OMX_U32 aspect_ratio_idc;
OMX_U32 aspect_ratio_x;
OMX_U32 aspect_ratio_y;
} h264_aspect_ratio_info;
typedef struct
{
OMX_U8 aspect_ratio_info_present_flag;
h264_aspect_ratio_info aspect_ratio_info;
OMX_U8 timing_info_present_flag;
OMX_U32 num_units_in_tick;
OMX_U32 time_scale;
OMX_U8 fixed_frame_rate_flag;
OMX_U8 nal_hrd_parameters_present_flag;
h264_hrd_param nal_hrd_parameters;
OMX_U8 vcl_hrd_parameters_present_flag;
h264_hrd_param vcl_hrd_parameters;
OMX_U8 low_delay_hrd_flag;
OMX_U8 pic_struct_present_flag;
OMX_S64 fixed_fps_prev_ts;
} h264_vui_param;
typedef struct
{
OMX_U32 cpb_removal_delay;
OMX_U32 dpb_output_delay;
OMX_U8 pic_struct;
OMX_U32 num_clock_ts;
bool clock_ts_flag;
OMX_U8 ct_type;
OMX_U32 nuit_field_based_flag;
OMX_U8 counting_type;
OMX_U8 full_timestamp_flag;
OMX_U8 discontinuity_flag;
OMX_U8 cnt_dropped_flag;
OMX_U32 n_frames;
OMX_U32 seconds_value;
OMX_U32 minutes_value;
OMX_U32 hours_value;
OMX_S32 time_offset;
bool is_valid;
} h264_sei_pic_timing;
typedef struct
{
OMX_U32 initial_cpb_removal_delay[MAX_CPB_COUNT];
OMX_U32 initial_cpb_removal_delay_offset[MAX_CPB_COUNT];
OMX_U32 au_cntr;
OMX_S64 reference_ts;
bool is_valid;
} h264_sei_buf_period;
typedef struct
{
OMX_U32 rect_id;
OMX_U8 rect_cancel_flag;
OMX_U32 cnt;
OMX_S32 rect_left_offset[MAX_PAN_SCAN_RECT];
OMX_S32 rect_right_offset[MAX_PAN_SCAN_RECT];
OMX_S32 rect_top_offset[MAX_PAN_SCAN_RECT];
OMX_S32 rect_bottom_offset[MAX_PAN_SCAN_RECT];
OMX_U32 rect_repetition_period;
} h264_pan_scan;
#ifdef PANSCAN_HDLR
template <class NODE_STRUCT>
class omx_dl_list
{
public:
omx_dl_list() { head = tail = NULL; } ;
~omx_dl_list() {};
void add_multiple(NODE_STRUCT *data_arr, int data_num);
NODE_STRUCT *remove_first();
NODE_STRUCT *remove_last();
void add_last(NODE_STRUCT *data_ptr);
NODE_STRUCT *watch_first();
NODE_STRUCT *watch_last();
private:
NODE_STRUCT *head, *tail;
};
class panscan_handler
{
public:
panscan_handler();
~panscan_handler();
bool initialize(int num_data);
h264_pan_scan *get_free();
h264_pan_scan *get_populated(OMX_S64 frame_ts);
void update_last(OMX_S64 frame_ts);
private:
typedef struct PANSCAN_NODE
{
h264_pan_scan pan_scan_param;
OMX_S64 start_ts, end_ts;
bool active;
PANSCAN_NODE *next, *prev;
} PANSCAN_NODE;
omx_dl_list<PANSCAN_NODE> panscan_used;
omx_dl_list<PANSCAN_NODE> panscan_free;
PANSCAN_NODE *panscan_data;
};
#if 1 // Debug panscan data
#define PRINT_PANSCAN_PARAM(H264_PARAM)
#define PRINT_PANSCAN_DATA(NODE)
#else
#define PRINT_PANSCAN_PARAM(H264_PARAM) \
do {\
ALOGE("%s(): left_off(%ld) right_off(%ld) top_off(%ld) bottom_off(%ld)",\
__FUNCTION__,\
(H264_PARAM).rect_left_offset[0],\
(H264_PARAM).rect_right_offset[0],\
(H264_PARAM).rect_top_offset[0],\
(H264_PARAM).rect_bottom_offset[0]);\
}while(0)
#define PRINT_PANSCAN_DATA(NODE) \
do {\
if (NODE) {\
ALOGE("%s(): PANSCAN DATA start_ts(%lld) end_ts(%lld)", __FUNCTION__,\
(NODE)->start_ts, (NODE)->end_ts);\
PRINT_PANSCAN_PARAM(NODE->pan_scan_param);\
}\
}while(0)
#endif // End debug panscan data
#endif
class h264_stream_parser
{
public:
h264_stream_parser();
~h264_stream_parser();
void reset();
void fill_pan_scan_data(OMX_QCOM_PANSCAN *dest_pan_scan, OMX_S64 timestamp);
void fill_aspect_ratio_info(OMX_QCOM_ASPECT_RATIO *dest_aspect_ratio);
void parse_nal(OMX_U8* data_ptr, OMX_U32 data_len,
OMX_U32 nal_type = NALU_TYPE_UNSPECIFIED,
bool enable_emu_sc = true);
OMX_S64 process_ts_with_sei_vui(OMX_S64 timestamp);
void get_frame_pack_data(OMX_QCOM_FRAME_PACK_ARRANGEMENT *frame_pack);
bool is_mbaff();
void get_frame_rate(OMX_U32 *frame_rate);
#ifdef PANSCAN_HDLR
void update_panscan_data(OMX_S64 timestamp);
#endif
private:
void init_bitstream(OMX_U8* data, OMX_U32 size);
OMX_U32 extract_bits(OMX_U32 n);
inline bool more_bits();
void read_word();
OMX_U32 uev();
OMX_S32 sev();
OMX_S32 iv(OMX_U32 n_bits);
void parse_sps();
void parse_vui(bool vui_in_extradata = true);
void aspect_ratio_info();
void hrd_parameters(h264_hrd_param *hrd_param);
void parse_sei();
void sei_buffering_period();
void sei_picture_timing();
void sei_pan_scan();
void scaling_list(OMX_U32 size_of_scaling_list);
void print_pan_data(h264_pan_scan *pan_scan_param);
void print_frame_pack();
OMX_U32 get_nal_unit_type(OMX_U32 *nal_unit_type);
OMX_S64 calculate_buf_period_ts(OMX_S64 timestamp);
OMX_S64 calculate_fixed_fps_ts(OMX_S64 timestamp, OMX_U32 DeltaTfiDivisor);
void parse_frame_pack();
OMX_U32 curr_32_bit;
OMX_U32 bits_read;
OMX_U32 zero_cntr;
OMX_U32 emulation_code_skip_cntr;
OMX_U8* bitstream;
OMX_U32 bitstream_bytes;
OMX_U32 frame_rate;
bool emulation_sc_enabled;
h264_vui_param vui_param;
h264_sei_buf_period sei_buf_period;
h264_sei_pic_timing sei_pic_timing;
#ifdef PANSCAN_HDLR
panscan_handler *panscan_hdl;
#else
h264_pan_scan panscan_param;
#endif
OMX_QCOM_FRAME_PACK_ARRANGEMENT frame_packing_arrangement;
bool mbaff_flag;
};
#endif /* H264_UTILS_H */