xref: /hardware/qcom/media/mm-video-legacy/vidc/vdec/src/ts_parser.cpp

/*--------------------------------------------------------------------------
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modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
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      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
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      the names of its contributors may be used to endorse or promote
      products derived from this software without specific prior written
      permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NON-INFRINGEMENT ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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--------------------------------------------------------------------------*/
#include "ts_parser.h"

#define DEBUG ALOGE
void omx_time_stamp_reorder::set_timestamp_reorder_mode(bool mode)
{
	reorder_ts = mode;
}

void omx_time_stamp_reorder::enable_debug_print(bool flag)
{
        print_debug = flag;
}

omx_time_stamp_reorder::~omx_time_stamp_reorder()
{
	delete_list();
}

omx_time_stamp_reorder::omx_time_stamp_reorder()
{
	reorder_ts = false;
	phead = pcurrent = NULL;
	error = false;
        print_debug = false;
}

void omx_time_stamp_reorder::delete_list()
{
	time_stamp_list *ptemp;
	if (!phead) return;
	while(phead->next != phead) {
		ptemp = phead;
		phead = phead->next;
		phead->prev = ptemp->prev;
		ptemp->prev->next = phead;
		delete ptemp;
	}
	delete phead;
	phead = NULL;
}

bool omx_time_stamp_reorder::get_current_list()
{
	if (!phead) {
		if(!add_new_list()) {
			handle_error();
			return false;
		}
	}
	pcurrent = phead->prev;
	return true;
}

bool omx_time_stamp_reorder::update_head()
{
	time_stamp_list *ptemp;
	if(!phead) return false;
	if (phead->next != phead) {
		ptemp = phead;
		phead = ptemp->next;
		phead->prev = ptemp->prev;
		ptemp->prev->next = phead;
		delete ptemp;
	}
	return true;
}

bool omx_time_stamp_reorder::add_new_list()
{
	bool status = true;
	time_stamp_list *ptemp = NULL;
	if (!phead) {
		ptemp = phead = new time_stamp_list;
		if (!phead) {
			handle_error();
			status = false;
			return status;
		}
		phead->prev = phead->next = phead;
	} else {
		ptemp = new time_stamp_list;
		if (!ptemp) {
			handle_error();
			status = false;
			return status;
		}
		ptemp->prev = phead->prev;
		ptemp->next = phead;
		phead->prev->next = ptemp;
		phead->prev = ptemp;
	}
	ptemp->entries_filled = 0;
	for(int i=0; i < TIME_SZ; i++) {
		ptemp->input_timestamps[i].in_use = false;
		ptemp->input_timestamps[i].timestamps = -1;
	}
	return status;
}

bool omx_time_stamp_reorder::insert_timestamp(OMX_BUFFERHEADERTYPE *header)
{
	OMX_TICKS *table_entry = NULL;
	if (!reorder_ts || error || !header) {
		if (error || !header)
			DEBUG("\n Invalid condition in insert_timestamp %p", header);
		return false;
	}
	if(!get_current_list()) {
		handle_error();
		return false;
	}
	if (pcurrent->entries_filled > (TIME_SZ - 1)) {
		DEBUG("\n Table full return error");
		handle_error();
		return false;
	}
	if (header->nFlags & OMX_BUFFERFLAG_CODECCONFIG) {
		return true;
	}
	if ((header->nFlags & OMX_BUFFERFLAG_EOS) && !header->nFilledLen)
	{
		DEBUG("\n EOS with zero length recieved");
		if (!add_new_list()) {
			handle_error();
			return false;
		}
		return true;
	}
	for(int i = 0; i < TIME_SZ && !table_entry; i++) {
		if (!pcurrent->input_timestamps[i].in_use) {
			table_entry = &pcurrent->input_timestamps[i].timestamps;
			pcurrent->input_timestamps[i].in_use = true;
			pcurrent->entries_filled++;
		}
	}
	if (!table_entry) {
		DEBUG("\n All entries in use");
		handle_error();
		return false;
	}
	*table_entry = header->nTimeStamp;
        if (print_debug)
	        DEBUG("Time stamp inserted %lld", header->nTimeStamp);
	if (header->nFlags & OMX_BUFFERFLAG_EOS) {
		if (!add_new_list()) {
			handle_error();
			return false;
		}
	}
	return true;
}

bool omx_time_stamp_reorder::remove_time_stamp(OMX_TICKS ts, bool is_interlaced = false)
{
	unsigned int num_ent_remove = (is_interlaced)?2:1;
	if (!reorder_ts || error) {
		DEBUG("\n not in avi mode");
		return false;
	}
	if (!phead || !phead->entries_filled) return false;
	for(int i=0; i < TIME_SZ && num_ent_remove; i++) {
		if (phead->input_timestamps[i].in_use && phead->input_timestamps[i].timestamps == ts) {
				phead->input_timestamps[i].in_use = false;
				phead->entries_filled--;
				num_ent_remove--;
                                if (print_debug)
		                       DEBUG("Removed TS %lld", ts);
		}
	}
	if (!phead->entries_filled) {
		if (!update_head()) {
			handle_error();
			return false;
		}
	}
	return true;
}

void omx_time_stamp_reorder::flush_timestamp()
{
	delete_list();
}

bool omx_time_stamp_reorder::get_next_timestamp(OMX_BUFFERHEADERTYPE *header, bool is_interlaced)
{
	timestamp *element = NULL,*duplicate = NULL;
	bool status = false;
	if (!reorder_ts || error || !header) {
		if (error || !header)
			DEBUG("\n Invalid condition in insert_timestamp %p", header);
		return false;
	}
	if(!phead || !phead->entries_filled) return false;
	for(int i=0; i < TIME_SZ; i++) {
		if (phead->input_timestamps[i].in_use) {
			status = true;
			if (!element)
				element = &phead->input_timestamps[i];
			else {
				if (element->timestamps > phead->input_timestamps[i].timestamps){
					element = &phead->input_timestamps[i];
					duplicate = NULL;
				} else if(element->timestamps == phead->input_timestamps[i].timestamps)
					duplicate = &phead->input_timestamps[i];
			}
		}
	}
	if (element) {
		phead->entries_filled--;
		header->nTimeStamp = element->timestamps;
                if (print_debug)
		     DEBUG("Getnext Time stamp %lld", header->nTimeStamp);
		element->in_use = false;
	}
	if(is_interlaced && duplicate) {
		phead->entries_filled--;
		duplicate->in_use = false;
	}
	else if(is_interlaced && status)
	{
		for(int i=0; i < TIME_SZ; i++) {
			if (phead->input_timestamps[i].in_use) {
				if (!duplicate)
					duplicate = &phead->input_timestamps[i];
				else {
					if (duplicate->timestamps > phead->input_timestamps[i].timestamps)
						duplicate = &phead->input_timestamps[i];
				}
			}
		}
		if (duplicate) {
			phead->entries_filled--;
			if (print_debug)
				DEBUG("Getnext Duplicate Time stamp %lld", header->nTimeStamp);
			duplicate->in_use = false;
		}
	}

	if (!phead->entries_filled) {
		if (!update_head()) {
			handle_error();
			return false;
		}
	}
	return status;
}