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Code Issues Releases Activity

Merge pull request #3553 from Laserlicht/sync_subtitle

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sync subtitle with audio
This commit is contained in:
Ivan Savenko
2024-01-29 12:54:43 +02:00
committed by GitHub
parent 68f9ef1a32 d53dd83466
commit dc2f8cb81d
4 changed files with 52 additions and 12 deletions
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24
client/CMusicHandler.cpp
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@@ -183,6 +183,30 @@ void CSoundHandler::ambientStopSound(const AudioPath & soundId)
setChannelVolume(ambientChannels[soundId], volume);
}
uint32_t CSoundHandler::getSoundDurationMilliseconds(const AudioPath & sound)
{
if (!initialized || sound.empty())
return 0;
auto data = CResourceHandler::get()->load(sound.addPrefix("SOUNDS/"))->readAll();
SDL_AudioSpec spec;
uint32_t audioLen;
uint8_t *audioBuf;
uint32_t miliseconds = 0;
if(SDL_LoadWAV_RW(SDL_RWFromMem(data.first.get(), (int)data.second), 1, &spec, &audioBuf, &audioLen) != nullptr)
{
SDL_FreeWAV(audioBuf);
uint32_t sampleSize = SDL_AUDIO_BITSIZE(spec.format) / 8;
uint32_t sampleCount = audioLen / sampleSize;
uint32_t sampleLen = sampleCount / spec.channels;
miliseconds = 1000 * sampleLen / spec.freq;
}
return miliseconds ;
}
// Plays a sound, and return its channel so we can fade it out later
int CSoundHandler::playSound(soundBase::soundID soundID, int repeats)
{

1
client/CMusicHandler.h
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@@ -77,6 +77,7 @@ public:
void setChannelVolume(int channel, ui32 percent);
// Sounds
uint32_t getSoundDurationMilliseconds(const AudioPath & sound);
int playSound(soundBase::soundID soundID, int repeats=0);
int playSound(const AudioPath & sound, int repeats=0, bool cache=false);
int playSound(std::pair<std::unique_ptr<ui8 []>, si64> & data, int repeats=0, bool cache=false);

36
client/mainmenu/CPrologEpilogVideo.cpp
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@@ -14,16 +14,18 @@
#include "../CGameInfo.h"
#include "../CMusicHandler.h"
#include "../CVideoHandler.h"
#include "../gui/WindowHandler.h"
#include "../gui/CGuiHandler.h"
#include "../gui/FramerateManager.h"
#include "../widgets/TextControls.h"
#include "../render/Canvas.h"
CPrologEpilogVideo::CPrologEpilogVideo(CampaignScenarioPrologEpilog _spe, std::function<void()> callback)
: CWindowObject(BORDERED), spe(_spe), positionCounter(0), voiceSoundHandle(-1), videoSoundHandle(-1), exitCb(callback)
: CWindowObject(BORDERED), spe(_spe), positionCounter(0), voiceSoundHandle(-1), videoSoundHandle(-1), exitCb(callback), elapsedTimeMilliseconds(0)
{
OBJ_CONSTRUCTION_CAPTURING_ALL_NO_DISPOSE;
addUsedEvents(LCLICK);
addUsedEvents(LCLICK | TIME);
pos = center(Rect(0, 0, 800, 600));
updateShadow();
@@ -31,15 +33,33 @@ CPrologEpilogVideo::CPrologEpilogVideo(CampaignScenarioPrologEpilog _spe, std::f
videoSoundHandle = CCS->soundh->playSound(audioData);
CCS->videoh->open(spe.prologVideo);
CCS->musich->playMusic(spe.prologMusic, true, true);
voiceDurationMilliseconds = CCS->soundh->getSoundDurationMilliseconds(spe.prologVoice);
voiceSoundHandle = CCS->soundh->playSound(spe.prologVoice);
auto onVoiceStop = [this]()
{
voiceStopped = true;
elapsedTimeMilliseconds = 0;
};
CCS->soundh->setCallback(voiceSoundHandle, onVoiceStop);
text = std::make_shared<CMultiLineLabel>(Rect(100, 500, 600, 100), EFonts::FONT_BIG, ETextAlignment::CENTER, Colors::METALLIC_GOLD, spe.prologText.toString());
text->scrollTextTo(-100);
text->scrollTextTo(-50); // beginning of text in the vertical middle of black area
}
void CPrologEpilogVideo::tick(uint32_t msPassed)
{
elapsedTimeMilliseconds += msPassed;
const uint32_t speed = (voiceDurationMilliseconds == 0) ? 150 : (voiceDurationMilliseconds / (text->textSize.y));
if(elapsedTimeMilliseconds > speed && text->textSize.y - 50 > positionCounter)
{
text->scrollTextBy(1);
elapsedTimeMilliseconds -= speed;
++positionCounter;
}
else if(elapsedTimeMilliseconds > (voiceDurationMilliseconds == 0 ? 8000 : 3000) && voiceStopped) // pause after completed scrolling (longer for intros missing voice)
clickPressed(GH.getCursorPosition());
}
void CPrologEpilogVideo::show(Canvas & to)
@@ -48,15 +68,7 @@ void CPrologEpilogVideo::show(Canvas & to)
//some videos are 800x600 in size while some are 800x400
CCS->videoh->update(pos.x, pos.y + (CCS->videoh->size().y == 400 ? 100 : 0), to.getInternalSurface(), true, false);
//move text every 5 calls/frames; seems to be good enough
++positionCounter;
if(positionCounter % 5 == 0)
text->scrollTextBy(1);
else
text->showAll(to); // blit text over video, if needed
if(text->textSize.y + 100 < positionCounter / 5 && voiceStopped)
clickPressed(GH.getCursorPosition());
text->showAll(to); // blit text over video, if needed
}
void CPrologEpilogVideo::clickPressed(const Point & cursorPosition)

3
client/mainmenu/CPrologEpilogVideo.h
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@@ -19,6 +19,8 @@ class CPrologEpilogVideo : public CWindowObject
CampaignScenarioPrologEpilog spe;
int positionCounter;
int voiceSoundHandle;
uint32_t voiceDurationMilliseconds;
uint32_t elapsedTimeMilliseconds;
int videoSoundHandle;
std::function<void()> exitCb;
@@ -29,6 +31,7 @@ class CPrologEpilogVideo : public CWindowObject
public:
CPrologEpilogVideo(CampaignScenarioPrologEpilog _spe, std::function<void()> callback);
void tick(uint32_t msPassed) override;
void clickPressed(const Point & cursorPosition) override;
void show(Canvas & to) override;
};