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pcm1datastitcher.cpp
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pcm1datastitcher.cpp
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#include "pcm1datastitcher.h"
PCM1DataStitcher::PCM1DataStitcher(QObject *parent) : QObject(parent)
{
// Reset pointers to input/output queues.
in_lines = NULL;
out_samples = NULL;
mtx_lines = NULL;
mtx_samples = NULL;
// Set internal frame and field buffer sizes.
trim_buf.resize(BUF_SIZE_TRIM);
frame1_odd.resize(BUF_SIZE_FIELD);
frame1_even.resize(BUF_SIZE_FIELD);
file_name.clear();
preset_field_order = FrameAsmDescriptor::ORDER_TFF;
preset_odd_offset = preset_even_offset = 0;
log_level = 0;
trim_fill = 0;
auto_offset = true;
file_start = file_end = false;
finish_work = false;
// Reset internal state.
resetState();
// Preset default fine parameters.
setDefaultFineSettings();
}
//------------------------ Set pointers to shared input data.
void PCM1DataStitcher::setInputPointers(std::deque<PCM1Line> *in_pcmline, QMutex *mtx_pcmline)
{
if((in_pcmline==NULL)||(mtx_pcmline==NULL))
{
qWarning()<<DBG_ANCHOR<<"[L2B-1] Empty input pointer provided, unable to apply!";
}
else
{
in_lines = in_pcmline;
mtx_lines = mtx_pcmline;
}
}
//------------------------ Set pointers to shared output data.
void PCM1DataStitcher::setOutputPointers(std::deque<PCMSamplePair> *out_pcmsamples, QMutex *mtx_pcmsamples)
{
if((out_pcmsamples==NULL)||(mtx_pcmsamples==NULL))
{
qWarning()<<DBG_ANCHOR<<"[L2B-1] Empty output pointer provided, unable to apply!";
}
else
{
out_samples = out_pcmsamples;
mtx_samples = mtx_pcmsamples;
}
}
//------------------------ Reset all stats from the last file, start from scratch.
void PCM1DataStitcher::resetState()
{
// Clear queue.
conv_queue.clear();
// Set default assembling parameters.
header_present = emphasis_set = false;
frasm_f1.clearMisc();
#ifdef DI_EN_DBG_OUT
//if((log_level&LOG_PROCESS)!=0)
{
qInfo()<<"[L2B-1] Internal state is reset";
}
#endif
}
//------------------------ Wait until one full frame is in the input queue.
bool PCM1DataStitcher::waitForOneFrame()
{
bool frame1_lock;
std::deque<PCM1Line>::iterator buf_scaner;
frame1_lock = false;
// Pick start of the queue.
buf_scaner = in_lines->begin();
// Scan the buffer until there is nothing in the input.
while(buf_scaner!=in_lines->end())
{
// Still at the first frame in the buffer.
if(frame1_lock==false)
{
// End of the frame is not detected yet.
// Check if there is service tag for the end of the frame.
if((*buf_scaner).isServEndFrame()!=false)
{
// Got to the end of the first frame: one full frame is in the buffer.
frame1_lock = true;
// Set frame number for the second frame in the buffer.
frasm_f1.frame_number = (*buf_scaner).frame_number;
#ifdef DI_LOG_BUF_WAIT_VERBOSE
if((log_level&LOG_PROCESS)!=0)
{
qInfo()<<"[L2B-1] Detected end of the Frame, exiting search...";
}
#endif
break;
}
}
// Check for the End Of File.
if((*buf_scaner).isServEndFile()!=false)
{
#ifdef DI_LOG_BUF_WAIT_VERBOSE
if((log_level&LOG_PROCESS)!=0)
{
qInfo()<<"[L2B-1] EOF detected, frame"<<(*buf_scaner).frame_number<<"line"<<(*buf_scaner).line_number;
}
#endif
//break;
}
// Go to the next line in the input.
buf_scaner++;
}
return frame1_lock;
}
//------------------------ Fill internal buffer up full frame from input queue.
void PCM1DataStitcher::fillUntilFullFrame()
{
std::deque<PCM1Line>::iterator buf_scaner;
// Reset internal buffer fill counter.
trim_fill = 0;
#ifdef DI_EN_DBG_OUT
if((log_level&LOG_PROCESS)!=0)
{
qInfo()<<"[L2B-1] Copying full frame from the input queue...";
}
#endif
buf_scaner = in_lines->begin();
// Fill up buffer until there is nothing in the input.
while(buf_scaner!=in_lines->end())
{
// Check frame number.
if((*buf_scaner).frame_number==frasm_f1.frame_number)
{
// Check if there is a service tag for the end of the frame.
if((*buf_scaner).isServEndFrame()!=false)
{
#ifdef DI_LOG_BUF_FILL_VERBOSE
if((log_level&LOG_PROCESS)!=0)
{
QString log_line;
log_line.sprintf("[L2B-1] Frame end at line %u-%u, fill index: %u", (*buf_scaner).frame_number, (*buf_scaner).line_number, trim_fill);
qInfo()<<log_line;
}
#endif
// One frame is enough.
break;
}
else if(trim_fill<BUF_SIZE_TRIM)
{
// Copy data into internal buffer.
trim_buf[trim_fill] = (*buf_scaner);
#ifdef DI_LOG_BUF_FILL_VERBOSE
if((log_level&LOG_PROCESS)!=0)
{
QString log_line;
log_line.sprintf("[L2B-1] Added line %u-%u (%u) into buffer at index: %u",
(*buf_scaner).frame_number,
(*buf_scaner).line_number,
(*buf_scaner).isServiceLine(),
trim_fill);
qInfo()<<log_line;
}
#endif
trim_fill++;
}
else
{
qWarning()<<DBG_ANCHOR<<"[L2B-1] Line buffer index out of bound! Logic error! Line skipped!";
qWarning()<<DBG_ANCHOR<<"[L2B-1] Max lines:"<<BUF_SIZE_TRIM;
}
}
// Go to the next line in the input.
buf_scaner++;
}
#ifdef DI_EN_DBG_OUT
if((log_level&LOG_PROCESS)!=0)
{
qInfo()<<"[L2B-16x0] Filled"<<trim_fill<<"lines";
}
#endif
}
//------------------------ Detect frame trimming (how many lines to skip from top and bottom of each field).
void PCM1DataStitcher::findFrameTrim()
{
uint16_t line_ind, f1o_good, f1e_good;
bool f1e_top, f1e_bottom, f1o_top, f1o_bottom;
bool f1o_skip_bad, f1e_skip_bad;
bool data_started_odd, data_started_even;
data_started_odd = data_started_even = header_present = emphasis_set = file_start = file_end = false;
f1e_top = f1e_bottom = f1o_top = f1o_bottom = false;
f1o_skip_bad = f1e_skip_bad = false;
f1o_good = f1e_good = 0;
#ifdef DI_EN_DBG_OUT
if(((log_level&LOG_TRIM)!=0)||((log_level&LOG_PROCESS)!=0))
{
qInfo()<<"[L2B-1] -------------------- Trim search starting...";
}
#endif
// Preset default trim.
frasm_f1.even_top_data = frasm_f1.even_bottom_data = frasm_f1.odd_top_data = frasm_f1.odd_bottom_data = 0;
// Pre-scan buffer to count up number of good lines.
line_ind = 0;
while(line_ind<trim_fill)
{
if(trim_buf[line_ind].frame_number==frasm_f1.frame_number)
{
// Frame number is ok.
// Check for service lines in the input.
if(trim_buf[line_ind].isServiceLine()==false)
{
// Current line is not a service one.
if(trim_buf[line_ind].isCRCValid()!=false)
{
// Binarization gave good result.
if((trim_buf[line_ind].line_number%2)==0)
{
// Line from even field.
data_started_even = true;
f1e_good++;
if(f1e_good>MIN_GOOD_LINES_PF)
{
f1e_skip_bad = true;
}
}
else
{
// Line from odd field.
data_started_odd = true;
f1o_good++;
if(f1o_good>MIN_GOOD_LINES_PF)
{
f1o_skip_bad = true;
}
}
}
}
else if(trim_buf[line_ind].isServHeader()!=false)
{
// Line contains Service line with Header.
if(trim_buf[line_ind].frame_number==frasm_f1.frame_number)
{
// Frame number is ok.
if((trim_buf[line_ind].line_number%2)==0)
{
// Line from even field.
if(data_started_even==false)
{
// PCM data has not started yet.
// Set Header flag.
header_present = true;
}
}
else
{
// Line from odd field.
if(data_started_odd==false)
{
// PCM data has not started yet.
// Set Header flag.
header_present = true;
}
}
}
}
else if(trim_buf[line_ind].isServNewFile()!=false)
{
// Line contains Service line with "New file" tag.
file_start = true;
file_name = trim_buf[line_ind].getServFileName();
}
else if(trim_buf[line_ind].isServEndFile()!=false)
{
// Line contains Service line with "File end" tag.
file_end = true;
}
}
// Go to next line.
line_ind++;
}
// Reset data flags.
data_started_odd = data_started_even = false;
// Do backwards search for emphasis line.
line_ind = trim_fill;
while(line_ind>0)
{
// Go to next line.
line_ind--;
if(trim_buf[line_ind].isServiceLine()==false)
{
// Current line is not a service one.
if(trim_buf[line_ind].frame_number==frasm_f1.frame_number)
{
// Frame number is ok.
if(trim_buf[line_ind].isCRCValid()!=false)
{
// Binarization gave good result.
if((trim_buf[line_ind].line_number%2)==0)
{
// Line from even field.
data_started_even = true;
if(data_started_odd!=false)
{
// Data has started in both fields.
break;
}
}
else
{
// Line from odd field.
data_started_odd = true;
if(data_started_even!=false)
{
// Data has started in both fields.
break;
}
}
}
}
}
else if(trim_buf[line_ind].isServHeader()!=false)
{
// Line contains Header.
if(trim_buf[line_ind].frame_number==frasm_f1.frame_number)
{
// Frame number is ok.
if((trim_buf[line_ind].line_number%2)==0)
{
// Line from even field.
if(data_started_even==false)
{
// PCM data has not started yet.
// Set Emphasis flag.
emphasis_set = true;
}
}
else
{
// Line from odd field.
if(data_started_odd==false)
{
// PCM data has not started yet.
// Set Emphasis flag.
emphasis_set = true;
}
}
}
}
}
#ifdef DI_EN_DBG_OUT
if(((log_level&LOG_TRIM)!=0)||((log_level&LOG_PROCESS)!=0))
{
if(file_start!=false)
{
qInfo()<<"[L2B-1] New file tag detected in the frame";
}
if(file_end!=false)
{
qInfo()<<"[L2B-1] File end tag detected in the frame";
}
if(header_present!=false)
{
qInfo()<<"[L2B-1] Header detected in the frame, top lines are starting ones";
}
if(emphasis_set!=false)
{
qInfo()<<"[L2B-1] Emphasis is set for the frame";
}
if(f1o_skip_bad!=false)
{
qInfo()<<"[L2B-1]"<<f1o_good<<"lines with good CRC in odd field, aggresive trimming enabled for odd field";
}
if(f1e_skip_bad!=false)
{
qInfo()<<"[L2B-1]"<<f1e_good<<"lines with good CRC in even field, aggresive trimming enabled for even field";
}
}
#endif
if(auto_offset==false)
{
// Set top data offset to preset one.
f1o_top = f1e_top = true;
// Odd field offset.
if(preset_odd_offset>0)
{
frasm_f1.odd_top_data = 2*preset_odd_offset+1;
}
else
{
frasm_f1.odd_top_data = 1;
}
// Even field offset.
if(preset_even_offset>0)
{
frasm_f1.even_top_data = 2*preset_even_offset+2;
}
else
{
frasm_f1.even_top_data = 2;
}
}
// Cycle through the whole buffer.
// (assuming that buffer starts on the first line of the frame)
line_ind = 0;
while(line_ind<trim_fill)
{
// Check for service lines in the input.
if((trim_buf[line_ind].isServiceLine()!=false)&&(trim_buf[line_ind].isServFiller()==false))
{
// Go to next line.
line_ind++;
#ifdef DI_LOG_TRIM_VERBOSE
if(((log_level&LOG_TRIM)!=0)&&((log_level&LOG_PROCESS)!=0))
{
qInfo()<<"[L2B-1] Skipping service line at"<<trim_buf[line_ind].frame_number<<"/"<<trim_buf[line_ind].line_number;
}
#endif
// Skip service lines.
continue;
}
#ifdef DI_LOG_TRIM_VERBOSE
if(((log_level&LOG_TRIM)!=0)&&((log_level&LOG_PROCESS)!=0))
{
QString log_line;
log_line.sprintf("[L2B-1] Check: at %04u, line: %03u-%03u, PCM: ",
line_ind,
trim_buf[line_ind].frame_number,
trim_buf[line_ind].line_number);
if(trim_buf[line_ind].hasBWSet()==false)
{
log_line += "no ";
}
else
{
log_line += "yes";
}
qInfo()<<log_line;
}
#endif
// Check frame numbers (that are set in [waitForOneFrame()]).
if(trim_buf[line_ind].frame_number==frasm_f1.frame_number)
{
// Frame number is ok.
// Check field.
if((trim_buf[line_ind].line_number%2)==0)
{
// Line from even field.
if(((f1e_skip_bad==false)&&(trim_buf[line_ind].hasBWSet()!=false))||
((f1e_skip_bad!=false)&&(trim_buf[line_ind].isCRCValidIgnoreForced()!=false)))
{
// PCM detected in the line.
if(f1e_top==false)
{
// Set number of the line that PCM is starting.
frasm_f1.even_top_data = trim_buf[line_ind].line_number;
// Detect only first encounter in the buffer.
f1e_top = true;
#ifdef DI_EN_DBG_OUT
if(((log_level&LOG_TRIM)!=0)&&((log_level&LOG_PROCESS)!=0))
{
qInfo()<<"[L2B-1] Frame even field new top trim:"<<frasm_f1.even_top_data;
}
#endif
}
// Update last line with PCM from the bottom.
frasm_f1.even_bottom_data = trim_buf[line_ind].line_number;
f1e_bottom = true;
}
}
else
{
// Line from odd field.
if(((f1o_skip_bad==false)&&(trim_buf[line_ind].hasBWSet()!=false))||
((f1o_skip_bad!=false)&&(trim_buf[line_ind].isCRCValidIgnoreForced()!=false)))
{
// PCM detected in the line.
if(f1o_top==false)
{
// Set number of the line that PCM is starting.
frasm_f1.odd_top_data = trim_buf[line_ind].line_number;
// Detect only first encounter in the buffer.
f1o_top = true;
#ifdef DI_EN_DBG_OUT
if(((log_level&LOG_TRIM)!=0)&&((log_level&LOG_PROCESS)!=0))
{
qInfo()<<"[L2B-1] Frame odd field new top trim:"<<frasm_f1.odd_top_data;
}
#endif
}
// Update last line with PCM from the bottom.
frasm_f1.odd_bottom_data = trim_buf[line_ind].line_number;
f1o_bottom = true;
}
}
}
// Go to next line.
line_ind++;
}
#ifdef DI_EN_DBG_OUT
if(((log_level&LOG_TRIM)!=0)||((log_level&LOG_PROCESS)!=0))
{
QString log_line;
log_line = "[L2B-1] Frame ("+QString::number(frasm_f1.frame_number)+") trim (OT, OB, ET, EB): ";
if(f1o_top==false)
{
log_line += "UNK, ";
}
else
{
log_line += QString::number(frasm_f1.odd_top_data)+", ";
}
if(f1o_bottom==false)
{
log_line += "UNK, ";
}
else
{
log_line += QString::number(frasm_f1.odd_bottom_data)+", ";
}
if(f1e_top==false)
{
log_line += "UNK, ";
}
else
{
log_line += QString::number(frasm_f1.even_top_data)+", ";
}
if(f1e_bottom==false)
{
log_line += "UNK";
}
else
{
log_line += QString::number(frasm_f1.even_bottom_data);
}
qInfo()<<log_line;
}
#endif
}
//------------------------ Crop one sub-line from the video line.
void PCM1DataStitcher::splitLineToSubline(PCM1Line *in_line, PCM1SubLine *out_sub, uint8_t part)
{
// Reset sub-line fields.
out_sub->clear();
// Copy source frame and line numbers.
out_sub->frame_number = in_line->frame_number;
out_sub->line_number = in_line->line_number;
// Copy BW detection flag.
out_sub->setBWLevels(in_line->hasBWSet());
// Set line part.
out_sub->setLinePart(part);
if(part==PCM1SubLine::PART_LEFT)
{
// Copy data words.
out_sub->setLeft(in_line->getWord(PCM1Line::WORD_L2));
out_sub->setRight(in_line->getWord(PCM1Line::WORD_R2));
// Copy count of picked bits from the leftmost word.
out_sub->picked_bits_left = in_line->picked_bits_left;
}
else if(part==PCM1SubLine::PART_MIDDLE)
{
// Copy data words.
out_sub->setLeft(in_line->getWord(PCM1Line::WORD_L4));
out_sub->setRight(in_line->getWord(PCM1Line::WORD_R4));
}
else if(part==PCM1SubLine::PART_RIGHT)
{
// Copy data words.
out_sub->setLeft(in_line->getWord(PCM1Line::WORD_L6));
out_sub->setRight(in_line->getWord(PCM1Line::WORD_R6));
}
// Copy count of picked bits from the whole line CRC.
out_sub->picked_bits_right = in_line->picked_bits_right;
// Copy CRC validity flag.
out_sub->setCRCValid(in_line->isCRCValid());
}
//------------------------ Split frame into 2 internal buffers per field.
void PCM1DataStitcher::splitFrameToFields()
{
uint16_t line_ind, line_num;
uint32_t ref_lvl_odd, ref_lvl_even, ref_lvl_odd_bad, ref_lvl_even_bad;
PCM1Line current_line;
PCM1SubLine sub_temp;
#ifdef DI_EN_DBG_OUT
if(((log_level&LOG_PADDING)!=0)||((log_level&LOG_PROCESS)!=0))
{
qInfo()<<"[L2B-1] -------------------- Splitting frame into field buffers...";
qInfo()<<"[L2B-1]"<<trim_fill<<"sub-lines in the buffer";
}
#endif
line_ind = 0;
ref_lvl_odd = ref_lvl_even = ref_lvl_odd_bad = ref_lvl_even_bad = 0;
f1_max_line = 0;
// Cycle splitting frame buffer into 2 field buffers.
while(line_ind<trim_fill)
{
current_line = trim_buf[line_ind];
// Save current line number.
line_num = current_line.line_number;
// Check for stray service line.
if(current_line.isServiceLine()!=false)
{
if(trim_buf[line_ind].isServFiller()==false)
{
// Skip stray unfiltered or lost sync service line.
line_ind++;
continue;
}
}
// Pick lines for the frame.
if(current_line.frame_number==frasm_f1.frame_number)
{
// Update maximum line number.
if(f1_max_line<line_num)
{
f1_max_line = line_num;
}
// Fill up the frame, splitting fields.
if((line_num%2)==0)
{
// Check if lines are available after trimming (not top = bottom = current = 0).
if((frasm_f1.even_top_data!=frasm_f1.even_bottom_data)||(frasm_f1.even_top_data!=0))
{
// Check frame trimming.
if((line_num>=frasm_f1.even_top_data)&&(line_num<=frasm_f1.even_bottom_data))
{
// Cycle through sub-lines in one line.
for(uint8_t sub=0;sub<PCM1SubLine::PART_MAX;sub++)
{
// Check array index bounds.
if(frasm_f1.even_data_lines<BUF_SIZE_FIELD)
{
// Fill up even field.
splitLineToSubline(¤t_line, &sub_temp, sub);
frame1_even[frasm_f1.even_data_lines] = sub_temp;
frasm_f1.even_data_lines++;
// Pre-calculate average reference level for all lines.
ref_lvl_even_bad += current_line.ref_level;
if(current_line.isCRCValid()!=false)
{
// Calculate number of sub-lines with valid CRC in the field.
frasm_f1.even_valid_lines++;
// Pre-calculate average reference level for valid lines.
ref_lvl_even += current_line.ref_level;
}
}
#ifdef DI_EN_DBG_OUT
else
{
if(((log_level&LOG_PADDING)!=0)||((log_level&LOG_PROCESS)!=0))
{
QString log_line;
log_line.sprintf("[L2B-1] Even field buffer is full, line %u-%u is skipped!",
current_line.frame_number,
current_line.line_number);
qInfo()<<log_line;
}
}
#endif
}
}
}
#ifdef DI_LOG_NOLINE_SKIP_VERBOSE
else
{
if(((log_level&LOG_PADDING)!=0)&&((log_level&LOG_PROCESS)!=0))
{
qInfo()<<"[L2B-1] Frame no line even field skip";
}
}
#endif
}
else
{
// Check frame trimming.
if((line_num>=frasm_f1.odd_top_data)&&(line_num<=frasm_f1.odd_bottom_data))
{
// Check for stray header inside the data.
if(current_line.isServiceLine()!=false)
{
// Make this line invalid.
current_line.clear();
}
// Cycle through sub-lines in one line.
for(uint8_t sub=0;sub<PCM1SubLine::PART_MAX;sub++)
{
// Check array index bounds.
if(frasm_f1.odd_data_lines<BUF_SIZE_FIELD)
{
// Fill up odd field.
splitLineToSubline(¤t_line, &sub_temp, sub);
frame1_odd[frasm_f1.odd_data_lines] = sub_temp;
frasm_f1.odd_data_lines++;
// Pre-calculate average reference level for all lines.
ref_lvl_odd_bad += current_line.ref_level;
if(current_line.isCRCValid()!=false)
{
// Calculate number of sub-lines with valid CRC in the field.
frasm_f1.odd_valid_lines++;
// Pre-calculate average reference level for valid lines.
ref_lvl_odd += current_line.ref_level;
}
}
#ifdef DI_EN_DBG_OUT
else
{
if(((log_level&LOG_PADDING)!=0)||((log_level&LOG_PROCESS)!=0))
{
QString log_line;
log_line.sprintf("[L2B-1] Odd field buffer is full, line %u-%u is skipped!",
current_line.frame_number,
current_line.line_number);
qInfo()<<log_line;
}
}
#endif
}
}
}
}
// Continue search through the buffer.
line_ind++;
}
// Calculate average reference level per fields.
if(frasm_f1.odd_valid_lines>0)
{
// There was valid data, calculate reference only by valid lines.
ref_lvl_odd = ref_lvl_odd/frasm_f1.odd_valid_lines;
frasm_f1.odd_ref = (uint8_t)ref_lvl_odd;
}
else if(frasm_f1.odd_data_lines>0)
{
// There was no valid data, calculate reference by all lines with something in those.
ref_lvl_odd_bad = ref_lvl_odd_bad/frasm_f1.odd_data_lines;
frasm_f1.odd_ref = (uint8_t)ref_lvl_odd_bad;
}
else
{
frasm_f1.odd_ref = 0;
}
if(frasm_f1.even_valid_lines>0)
{
// There was valid data, calculate reference only by valid lines.
ref_lvl_even = ref_lvl_even/frasm_f1.even_valid_lines;
frasm_f1.even_ref = (uint8_t)ref_lvl_even;
}
else if(frasm_f1.even_data_lines>0)
{
ref_lvl_even_bad = ref_lvl_even_bad/frasm_f1.even_data_lines;
frasm_f1.even_ref = (uint8_t)ref_lvl_even_bad;
}
else
{
frasm_f1.even_ref = 0;
}
#ifdef DI_EN_DBG_OUT
if(((log_level&LOG_PADDING)!=0)||((log_level&LOG_PROCESS)!=0))
{
QString log_line;
log_line.sprintf("[L2B-1] Odd field sub-lines: %u (%u valid), even field sub-lines: %u (%u valid)",
frasm_f1.odd_data_lines,
frasm_f1.odd_valid_lines,
frasm_f1.even_data_lines,
frasm_f1.even_valid_lines);
qInfo()<<log_line;
log_line.sprintf("[L2B-007] Average reference level: %03u/%03u (odd/even)", frasm_f1.odd_ref, frasm_f1.even_ref);
qInfo()<<log_line;
}
#endif
}
//------------------------ Calculate padding for each field.
void PCM1DataStitcher::findFramePadding()
{
#ifdef DI_EN_DBG_OUT
if(((log_level&LOG_PADDING)!=0)||((log_level&LOG_PROCESS)!=0))
{
qInfo()<<"[L2B-1] -------------------- Padding detection starting...";
}
#endif
if(auto_offset!=false)
{
// Check if data starts with Header.
if(header_present==false)
{
// No Header, assume top part of the frame is cut.
// Stick trimmed data to the bottom of the field.
frasm_f1.odd_bottom_padding = 0;
frasm_f1.even_bottom_padding = 0;
// Calculate top padding to NTSC standard.
frasm_f1.odd_top_padding = (SUBLINES_PF-frasm_f1.odd_data_lines)/PCM1Line::SUBLINES_PER_LINE;
frasm_f1.even_top_padding = (SUBLINES_PF-frasm_f1.even_data_lines)/PCM1Line::SUBLINES_PER_LINE;
}
else
{
// Header is detected in the frame.
// Stick data to the top of the field.
frasm_f1.odd_top_padding = 0;
frasm_f1.even_top_padding = 0;
// Calculate top padding to NTSC standard.
frasm_f1.odd_bottom_padding = (SUBLINES_PF-frasm_f1.odd_data_lines)/PCM1Line::SUBLINES_PER_LINE;
frasm_f1.even_bottom_padding = (SUBLINES_PF-frasm_f1.even_data_lines)/PCM1Line::SUBLINES_PER_LINE;
}
}
else
{
// Calculate odd field top padding.
if(preset_odd_offset>0)
{
// Data if shifted upwards, no need for top padding.
frasm_f1.odd_top_padding = 0;
}
else
{
// Data if shifted downwards, convert preset offset to top padding,
// assuming top of the data not trimmed, but set by frame line number in [findFrameTrim()].
frasm_f1.odd_top_padding = 0-preset_odd_offset;
}
// Calculate even field top padding.
if(preset_even_offset>0)
{
// Data if shifted upwards, no need for top padding.
frasm_f1.even_top_padding = 0;
}
else
{
// Data if shifted downwards, convert preset offset to top padding,
// assuming top of the data not trimmed, but set by frame line number in [findFrameTrim()].
frasm_f1.even_top_padding = 0-preset_even_offset;
}
// Re-calculate bottom data trim to fit within standard number of lines per field.
frasm_f1.odd_bottom_padding = (frasm_f1.odd_bottom_data-frasm_f1.odd_top_data)/2+1; // Number of data lines.
frasm_f1.odd_bottom_padding += frasm_f1.odd_top_padding; // Data lines + top padding.
if(frasm_f1.odd_bottom_padding>LINES_PF)
{
frasm_f1.odd_bottom_padding -= LINES_PF; // Calculate how many excessive lines there are.
frasm_f1.odd_bottom_data -= (frasm_f1.odd_bottom_padding*2); // Trim bottom more (skipping every other line due to interlacing).
frasm_f1.odd_data_lines = (frasm_f1.odd_bottom_data-frasm_f1.odd_top_data)/2+1; // Re-calculate number of useful lines.
frasm_f1.odd_data_lines *= PCM1Line::SUBLINES_PER_LINE; // Convert number of lines to number of sublines.
}
// Re-calculate bottom data trim to fit within standard number of lines per field.
frasm_f1.even_bottom_padding = (frasm_f1.even_bottom_data-frasm_f1.even_top_data)/2+1; // Number of data lines.
frasm_f1.even_bottom_padding += frasm_f1.even_top_padding; // Data lines + top padding.
if(frasm_f1.even_bottom_padding>LINES_PF)
{
frasm_f1.even_bottom_padding -= LINES_PF; // Calculate how many excessive lines there are.
frasm_f1.even_bottom_data -= (frasm_f1.even_bottom_padding*2); // Trim bottom more (skipping every other line due to interlacing).
frasm_f1.even_data_lines = (frasm_f1.even_bottom_data-frasm_f1.even_top_data)/2+1; // Re-calculate number of useful lines.
frasm_f1.even_data_lines *= PCM1Line::SUBLINES_PER_LINE; // Convert number of lines to number of sublines.
}
// Calculate bottom padding to NTSC standard.
frasm_f1.odd_bottom_padding = (SUBLINES_PF-frasm_f1.odd_data_lines)/PCM1Line::SUBLINES_PER_LINE-frasm_f1.odd_top_padding;
frasm_f1.even_bottom_padding = (SUBLINES_PF-frasm_f1.even_data_lines)/PCM1Line::SUBLINES_PER_LINE-frasm_f1.even_top_padding;
}
//qDebug()<<"po"<<frasm_f1.odd_top_data<<frasm_f1.odd_bottom_data<<frasm_f1.odd_data_lines/PCM1Line::SUBLINES_PER_LINE<<frasm_f1.odd_top_padding<<frasm_f1.odd_bottom_padding;
//qDebug()<<"pe"<<frasm_f1.even_top_data<<frasm_f1.even_bottom_data<<frasm_f1.even_data_lines/PCM1Line::SUBLINES_PER_LINE<<frasm_f1.even_top_padding<<frasm_f1.even_bottom_padding;
// Preset field order.
if(preset_field_order==FrameAsmDescriptor::ORDER_BFF)
{
frasm_f1.presetBFF();
}
else
{
frasm_f1.presetTFF();
}
#ifdef DI_EN_DBG_OUT
if(((log_level&LOG_PADDING)!=0)||((log_level&LOG_PROCESS)!=0))
{
QString log_line;
qInfo()<<"[L2B-1] ----------- Padding results:";
log_line.sprintf("[L2B-1] Frame %u odd field padding: Calc", frasm_f1.frame_number);
log_line += " (top: "+QString::number(frasm_f1.odd_top_padding);
log_line += ", lines: "+(QString::number(frasm_f1.odd_data_lines/PCM1Line::SUBLINES_PER_LINE));
log_line += " (sub-lines: "+QString::number(frasm_f1.odd_data_lines);
log_line += "), bottom: "+QString::number(frasm_f1.odd_bottom_padding)+")";
qInfo()<<log_line;
log_line.sprintf("[L2B-1] Frame %u even field padding: Calc", frasm_f1.frame_number);
log_line += " (top: "+QString::number(frasm_f1.even_top_padding);
log_line += ", lines: "+(QString::number(frasm_f1.even_data_lines/PCM1Line::SUBLINES_PER_LINE));
log_line += " (sub-lines: "+QString::number(frasm_f1.even_data_lines);
log_line += "), bottom: "+QString::number(frasm_f1.even_bottom_padding)+")";
qInfo()<<log_line;
}
#endif
}
//------------------------ Get first line number for first field to fill.
uint16_t PCM1DataStitcher::getFirstFieldLineNum(uint8_t in_order)
{
if(in_order==FrameAsmDescriptor::ORDER_TFF)
{
return 1;
}
else
{
return 2;
}
}
//------------------------ Get first line number for second field to fill.
uint16_t PCM1DataStitcher::getSecondFieldLineNum(uint8_t in_order)
{
if(in_order==FrameAsmDescriptor::ORDER_TFF)
{
return 2;
}
else
{
return 1;
}
}
//------------------------ Fill output line buffer with lines from provided field buffer.
uint16_t PCM1DataStitcher::addLinesFromField(std::vector<PCM1SubLine> *field_buf, uint16_t ind_start, uint16_t count, uint16_t *last_line_num)
{
uint16_t lines_cnt;
lines_cnt = 0;
#ifdef DI_EN_DBG_OUT
uint16_t min_line_num, max_line_num;
max_line_num = 0;
min_line_num = 0xFFFF;
#endif
// Check array limits.
if((field_buf->size()>=ind_start)&&(field_buf->size()>=(ind_start+count)))
{
// Check if there is anything to copy.
if(count!=0)
{
for(uint16_t index=ind_start;index<(ind_start+count);index++)
{
(*field_buf)[index].line_number = *last_line_num;
// Copy PCM line into queue.
conv_queue.push_back((*field_buf)[index]);
if((last_line_num!=NULL)&&((*field_buf)[index].getLinePart()==PCM1SubLine::PART_RIGHT))
{
// Save its line number.
(*last_line_num) = (*field_buf)[index].line_number;
// Advance line number by 2 (skip a field).
(*last_line_num) = (*last_line_num)+2;
}
#ifdef DI_EN_DBG_OUT
if(min_line_num>(*field_buf)[index].line_number)
{
min_line_num = (*field_buf)[index].line_number;
}
if(max_line_num<(*field_buf)[index].line_number)
{
max_line_num = (*field_buf)[index].line_number;
}
#endif
// Count number of added lines.
lines_cnt++;
}
#ifdef DI_EN_DBG_OUT
if((log_level&LOG_FIELD_ASSEMBLY)!=0)
{
qInfo()<<"[L2B-1]"<<lines_cnt<<"sub-lines from field ("<<ind_start<<"..."<<(ind_start+count-1)<<"), #("<<min_line_num<<"..."<<max_line_num<<") inserted into queue";
}
#endif
}