forked from mia/Aegisub
71776940f6
Move SMPTE handling to agi::vfr::Framerate to get all of the interesting logic dealing with timcodes in one place, and to make it testable. Completely rewrite the SMPTE time conversions as testing them reveals that they were incorrect in some cases. Originally committed to SVN as r6631.
128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
// Copyright (c) 2005, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file ass_time.cpp
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/// @brief Class for managing timestamps in subtitles
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/// @ingroup subs_storage
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///
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#include "config.h"
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#include "ass_time.h"
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#ifndef AGI_PRE
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#include <algorithm>
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#include <cmath>
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#include <wx/tokenzr.h>
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#endif
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#include "utils.h"
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AssTime::AssTime(int time) : time(mid(0, time, 10 * 60 * 60 * 1000 - 1)) { }
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AssTime::AssTime(wxString const& text)
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: time(0)
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{
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size_t pos = 0, end = 0;
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int colons = text.Freq(':');
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// Set start so that there are only two colons at most
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for (; colons > 2; --colons) pos = text.find(':', pos) + 1;
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// Hours
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if (colons == 2) {
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while (text[end++] != ':') { }
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time += AegiStringToInt(text, pos, end) * 60 * 60 * 1000;
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pos = end;
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}
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// Minutes
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if (colons >= 1) {
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while (text[end++] != ':') { }
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time += AegiStringToInt(text, pos, end) * 60 * 1000;
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}
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// Milliseconds (includes seconds)
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time += AegiStringToFix(text, 3, end, text.size());
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// Limit to the valid range
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time = mid(0, time, 10 * 60 * 60 * 1000 - 1);
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}
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wxString AssTime::GetASSFormated(bool msPrecision) const {
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wxChar ret[] = {
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'0' + GetTimeHours(),
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':',
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'0' + (time % (60 * 60 * 1000)) / (60 * 1000 * 10),
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'0' + (time % (10 * 60 * 1000)) / (60 * 1000),
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':',
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'0' + (time % (60 * 1000)) / (1000 * 10),
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'0' + (time % (10 * 1000)) / 1000,
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'.',
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'0' + (time % 1000) / 100,
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'0' + (time % 100) / 10,
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'0' + time % 10
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};
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return wxString(ret, msPrecision ? 11 : 10);
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}
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int AssTime::GetTimeHours() const { return time / 3600000; }
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int AssTime::GetTimeMinutes() const { return (time % 3600000) / 60000; }
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int AssTime::GetTimeSeconds() const { return (time % 60000) / 1000; }
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int AssTime::GetTimeMiliseconds() const { return (time % 1000); }
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int AssTime::GetTimeCentiseconds() const { return (time % 1000) / 10; }
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SmpteFormatter::SmpteFormatter(agi::vfr::Framerate fps, char sep)
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: fps(fps)
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, sep(sep)
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{
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}
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wxString SmpteFormatter::ToSMPTE(AssTime time) const {
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int h=0, m=0, s=0, f=0;
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fps.SmpteAtTime(time, &h, &m, &s, &f);
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return wxString::Format("%02d%c%02d%c%02d%c%02d", h, sep, m, sep, s, sep, f);
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}
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AssTime SmpteFormatter::FromSMPTE(wxString const& str) const {
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long h, m, s, f;
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wxArrayString toks = wxStringTokenize(str, sep);
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if (toks.size() != 4) return 0;
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toks[0].ToLong(&h);
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toks[1].ToLong(&m);
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toks[2].ToLong(&s);
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toks[3].ToLong(&f);
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return fps.TimeAtSmpte(h, m, s, f);
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}
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