void timecode_factory_v2_c::parse(mm_io_c &in) { std::string line; std::map<int64_t, int64_t> dur_map; int64_t dur_sum = 0; int line_no = 0; double previous_timecode = 0; while (in.getline2(line)) { line_no++; strip(line); if ((line.length() == 0) || (line[0] == '#')) continue; double timecode; if (!parse_double(line.c_str(), timecode)) mxerror(boost::format(Y("The line %1% of the timecode file '%2%' does not contain a valid floating point number.\n")) % line_no % m_file_name); if ((2 == m_version) && (timecode < previous_timecode)) mxerror(boost::format(Y("The timecode v2 file '%1%' contains timecodes that are not ordered. " "Due to a bug in mkvmerge versions up to and including v1.5.0 this was necessary " "if the track to which the timecode file was applied contained B frames. " "Starting with v1.5.1 mkvmerge now handles this correctly, and the timecodes in the timecode file must be ordered normally. " "For example, the frame sequence 'IPBBP...' at 25 FPS requires a timecode file with " "the first timecodes being '0', '40', '80', '120' etc and not '0', '120', '40', '80' etc.\n\n" "If you really have to specify non-sorted timecodes then use the timecode format v4. " "It is identical to format v2 but allows non-sorted timecodes.\n")) % in.get_file_name()); previous_timecode = timecode; m_timecodes.push_back((int64_t)(timecode * 1000000)); if (m_timecodes.size() > 1) { int64_t duration = m_timecodes[m_timecodes.size() - 1] - m_timecodes[m_timecodes.size() - 2]; if (dur_map.find(duration) == dur_map.end()) dur_map[duration] = 1; else dur_map[duration] = dur_map[duration] + 1; dur_sum += duration; m_durations.push_back(duration); } } if (m_timecodes.empty()) mxerror(boost::format(Y("The timecode file '%1%' does not contain any valid entry.\n")) % m_file_name); dur_sum = -1; std::pair<int64_t, int64_t> entry; for (auto entry : dur_map) { if ((0 > dur_sum) || (dur_map[dur_sum] < entry.second)) dur_sum = entry.first; mxverb(4, boost::format("ext_m_timecodes v2 dur_map %1% = %2%\n") % entry.first % entry.second); } mxverb(4, boost::format("ext_m_timecodes v2 max is %1% = %2%\n") % dur_sum % dur_map[dur_sum]); if (0 < dur_sum) m_default_fps = (double)1000000000.0 / dur_sum; m_durations.push_back(dur_sum); }
void timecode_factory_v1_c::parse(mm_io_c &in) { std::string line; timecode_range_c t; std::vector<timecode_range_c>::iterator iit; std::vector<timecode_range_c>::const_iterator pit; int line_no = 1; do { if (!in.getline2(line)) mxerror(boost::format(Y("The timecode file '%1%' does not contain a valid 'Assume' line with the default number of frames per second.\n")) % m_file_name); line_no++; strip(line); if (!line.empty() && ('#' != line[0])) break; } while (true); if (!ba::istarts_with(line, "assume ")) mxerror(boost::format(Y("The timecode file '%1%' does not contain a valid 'Assume' line with the default number of frames per second.\n")) % m_file_name); line.erase(0, 6); strip(line); if (!parse_double(line.c_str(), m_default_fps)) mxerror(boost::format(Y("The timecode file '%1%' does not contain a valid 'Assume' line with the default number of frames per second.\n")) % m_file_name); while (in.getline2(line)) { line_no++; strip(line, true); if (line.empty() || ('#' == line[0])) continue; std::vector<std::string> parts = split(line, ",", 3); if ( (parts.size() != 3) || !parse_uint(parts[0], t.start_frame) || !parse_uint(parts[1], t.end_frame) || !parse_double(parts[2], t.fps)) { mxwarn(boost::format(Y("Line %1% of the timecode file '%2%' could not be parsed.\n")) % line_no % m_file_name); continue; } if ((t.fps <= 0) || (t.end_frame < t.start_frame)) { mxwarn(boost::format(Y("Line %1% of the timecode file '%2%' contains inconsistent data (e.g. the start frame number is bigger than the end frame " "number, or some values are smaller than zero).\n")) % line_no % m_file_name); continue; } m_ranges.push_back(t); } mxverb(3, boost::format("ext_timecodes: Version 1, default fps %1%, %2% entries.\n") % m_default_fps % m_ranges.size()); if (m_ranges.size() == 0) t.start_frame = 0; else { std::sort(m_ranges.begin(), m_ranges.end()); bool done; do { done = true; iit = m_ranges.begin(); size_t i; for (i = 0; i < (m_ranges.size() - 1); i++) { iit++; if (m_ranges[i].end_frame < (m_ranges[i + 1].start_frame - 1)) { t.start_frame = m_ranges[i].end_frame + 1; t.end_frame = m_ranges[i + 1].start_frame - 1; t.fps = m_default_fps; m_ranges.insert(iit, t); done = false; break; } } } while (!done); if (m_ranges[0].start_frame != 0) { t.start_frame = 0; t.end_frame = m_ranges[0].start_frame - 1; t.fps = m_default_fps; m_ranges.insert(m_ranges.begin(), t); } t.start_frame = m_ranges[m_ranges.size() - 1].end_frame + 1; } t.end_frame = 0xfffffffffffffffll; t.fps = m_default_fps; m_ranges.push_back(t); m_ranges[0].base_timecode = 0.0; pit = m_ranges.begin(); for (iit = m_ranges.begin() + 1; iit < m_ranges.end(); iit++, pit++) iit->base_timecode = pit->base_timecode + ((double)pit->end_frame - (double)pit->start_frame + 1) * 1000000000.0 / pit->fps; for (iit = m_ranges.begin(); iit < m_ranges.end(); iit++) mxverb(3, boost::format("ranges: entry %1% -> %2% at %3% with %4%\n") % iit->start_frame % iit->end_frame % iit->fps % iit->base_timecode); }
void timecode_factory_v3_c::parse(mm_io_c &in) { std::string line; timecode_duration_c t; std::vector<timecode_duration_c>::iterator iit; std::vector<timecode_duration_c>::const_iterator pit; std::string err_msg_assume = (boost::format(Y("The timecode file '%1%' does not contain a valid 'Assume' line with the default number of frames per second.\n")) % m_file_name).str(); int line_no = 1; do { if (!in.getline2(line)) mxerror(err_msg_assume); line_no++; strip(line); if ((line.length() != 0) && (line[0] != '#')) break; } while (true); if (!ba::istarts_with(line, "assume ")) mxerror(err_msg_assume); line.erase(0, 6); strip(line); if (!parse_double(line.c_str(), m_default_fps)) mxerror(err_msg_assume); while (in.getline2(line)) { line_no++; strip(line, true); if ((line.length() == 0) || (line[0] == '#')) continue; double dur; if (ba::istarts_with(line, "gap,")) { line.erase(0, 4); strip(line); t.is_gap = true; t.fps = m_default_fps; if (!parse_double(line.c_str(), dur)) mxerror(boost::format(Y("The timecode file '%1%' does not contain a valid 'Gap' line with the duration of the gap.\n")) % m_file_name); t.duration = (int64_t)(1000000000.0 * dur); } else { t.is_gap = false; std::vector<std::string> parts = split(line, ","); if ((1 == parts.size()) && parse_double(parts[0], dur)) t.fps = m_default_fps; else if ((2 != parts.size()) || !parse_double(parts[1], t.fps)) { mxwarn(boost::format(Y("Line %1% of the timecode file '%2%' could not be parsed.\n")) % line_no % m_file_name); continue; } t.duration = (int64_t)(1000000000.0 * dur); } if ((t.fps < 0) || (t.duration <= 0)) { mxwarn(boost::format(Y("Line %1% of the timecode file '%2%' contains inconsistent data (e.g. the duration or the FPS are smaller than zero).\n")) % line_no % m_file_name); continue; } m_durations.push_back(t); } mxverb(3, boost::format("ext_timecodes: Version 3, default fps %1%, %2% entries.\n") % m_default_fps % m_durations.size()); if (m_durations.size() == 0) mxwarn(boost::format(Y("The timecode file '%1%' does not contain any valid entry.\n")) % m_file_name); t.duration = 0xfffffffffffffffll; t.is_gap = false; t.fps = m_default_fps; m_durations.push_back(t); for (iit = m_durations.begin(); iit < m_durations.end(); iit++) mxverb(4, boost::format("durations:%1% entry for %2% with %3% FPS\n") % (iit->is_gap ? " gap" : "") % iit->duration % iit->fps); }