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Code Issues Releases Activity

Cleaned up IVideoPlayed API to remove global state

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This commit is contained in:
Ivan Savenko 2024-05-03 19:07:00 +03:00
parent d08c7b7b8f
commit 661a66121b
8 changed files with 390 additions and 578 deletions
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6
client/CMT.cpp
View File

@ -398,15 +398,15 @@ void playIntro()
{
auto audioData = CCS->videoh->getAudio(VideoPath::builtin("3DOLOGO.SMK"));
int sound = CCS->soundh->playSound(audioData);
if(CCS->videoh->openAndPlayVideo(VideoPath::builtin("3DOLOGO.SMK"), 0, 1, EVideoType::INTRO))
if(CCS->videoh->playIntroVideo(VideoPath::builtin("3DOLOGO.SMK")))
{
audioData = CCS->videoh->getAudio(VideoPath::builtin("NWCLOGO.SMK"));
sound = CCS->soundh->playSound(audioData);
if (CCS->videoh->openAndPlayVideo(VideoPath::builtin("NWCLOGO.SMK"), 0, 1, EVideoType::INTRO))
if (CCS->videoh->playIntroVideo(VideoPath::builtin("NWCLOGO.SMK")))
{
audioData = CCS->videoh->getAudio(VideoPath::builtin("H3INTRO.SMK"));
sound = CCS->soundh->playSound(audioData);
CCS->videoh->openAndPlayVideo(VideoPath::builtin("H3INTRO.SMK"), 0, 1, EVideoType::INTRO);
CCS->videoh->playIntroVideo(VideoPath::builtin("H3INTRO.SMK"));
}
}
CCS->soundh->stopSound(sound);

31
client/media/CEmptyVideoPlayer.h
View File

@ -10,18 +10,29 @@
#pragma once
#include "IVideoPlayer.h"
#include "../lib/Point.h"
class CEmptyVideoPlayer final : public IVideoPlayer
{
public:
void redraw( int x, int y, SDL_Surface *dst, bool update) override {};
void show( int x, int y, SDL_Surface *dst, bool update) override {};
bool nextFrame() override {return false;};
void close() override {};
bool open(const VideoPath & name, bool scale) override {return false;};
void update(int x, int y, SDL_Surface *dst, bool forceRedraw, bool update, std::function<void()> restart) override {}
bool openAndPlayVideo(const VideoPath & name, int x, int y, EVideoType videoType) override { return false; }
std::pair<std::unique_ptr<ui8 []>, si64> getAudio(const VideoPath & videoToOpen) override { return std::make_pair(nullptr, 0); };
Point size() override { return Point(0, 0); };
/// Plays video on top of the screen, returns only after playback is over
virtual bool playIntroVideo(const VideoPath & name)
{
return false;
};
virtual void playSpellbookAnimation(const VideoPath & name, const Point & position)
{
}
/// Load video from specified path
virtual std::unique_ptr<IVideoInstance> open(const VideoPath & name, bool scaleToScreen)
{
return nullptr;
};
/// Extracts audio data from provided video in wav format
virtual std::pair<std::unique_ptr<ui8 []>, si64> getAudio(const VideoPath & videoToOpen)
{
return { nullptr, 0};
};
};

719
client/media/CVideoHandler.cpp
View File

@ -12,14 +12,16 @@
#ifndef DISABLE_VIDEO
#include "CMT.h"
#include "gui/CGuiHandler.h"
#include "eventsSDL/InputHandler.h"
#include "gui/FramerateManager.h"
#include "renderSDL/SDL_Extensions.h"
#include "CPlayerInterface.h"
#include "../lib/filesystem/Filesystem.h"
#include "../lib/filesystem/CInputStream.h"
#include "../CMT.h"
#include "../CPlayerInterface.h"
#include "../eventsSDL/InputHandler.h"
#include "../gui/CGuiHandler.h"
#include "../gui/FramerateManager.h"
#include "../render/Canvas.h"
#include "../renderSDL/SDL_Extensions.h"
#include "../../lib/filesystem/CInputStream.h"
#include "../../lib/filesystem/Filesystem.h"
#include <SDL_render.h>
@ -30,18 +32,11 @@ extern "C" {
#include <libswscale/swscale.h>
}
#ifdef _MSC_VER
#pragma comment(lib, "avcodec.lib")
#pragma comment(lib, "avutil.lib")
#pragma comment(lib, "avformat.lib")
#pragma comment(lib, "swscale.lib")
#endif // _MSC_VER
// Define a set of functions to read data
static int lodRead(void* opaque, uint8_t* buf, int size)
static int lodRead(void * opaque, uint8_t * buf, int size)
{
auto video = reinterpret_cast<CVideoPlayer *>(opaque);
int bytes = static_cast<int>(video->data->read(buf, size));
auto * data = static_cast<CInputStream *>(opaque);
int bytes = static_cast<int>(data->read(buf, size));
if(bytes == 0)
return AVERROR_EOF;
@ -50,509 +45,298 @@ static int lodRead(void* opaque, uint8_t* buf, int size)
static si64 lodSeek(void * opaque, si64 pos, int whence)
{
auto video = reinterpret_cast<CVideoPlayer *>(opaque);
auto * data = static_cast<CInputStream *>(opaque);
if (whence & AVSEEK_SIZE)
return video->data->getSize();
if(whence & AVSEEK_SIZE)
return data->getSize();
return video->data->seek(pos);
return data->seek(pos);
}
// Define a set of functions to read data
static int lodReadAudio(void* opaque, uint8_t* buf, int size)
[[noreturn]] static void throwFFmpegError(int errorCode)
{
auto video = reinterpret_cast<CVideoPlayer *>(opaque);
int bytes = static_cast<int>(video->dataAudio->read(buf, size));
if(bytes == 0)
return AVERROR_EOF;
std::array<char, AV_ERROR_MAX_STRING_SIZE> errorMessage{};
av_strerror(errorCode, errorMessage.data(), errorMessage.size());
return bytes;
throw std::runtime_error(errorMessage.data());
}
static si64 lodSeekAudio(void * opaque, si64 pos, int whence)
void CVideoInstance::open(const VideoPath & videoToOpen)
{
auto video = reinterpret_cast<CVideoPlayer *>(opaque);
if (whence & AVSEEK_SIZE)
return video->dataAudio->getSize();
return video->dataAudio->seek(pos);
}
CVideoPlayer::CVideoPlayer()
: stream(-1)
, format (nullptr)
, codecContext(nullptr)
, codec(nullptr)
, frame(nullptr)
, sws(nullptr)
, context(nullptr)
, texture(nullptr)
, dest(nullptr)
, destRect(0,0,0,0)
, pos(0,0,0,0)
, frameTime(0)
, doLoop(false)
{}
bool CVideoPlayer::open(const VideoPath & fname, bool scale)
{
return open(fname, true, false, false);
}
// loop = to loop through the video
// overlay = directly write to the screen.
bool CVideoPlayer::open(const VideoPath & videoToOpen, bool loop, bool overlay, bool scale)
{
close();
doLoop = loop;
frameTime = 0;
if (CResourceHandler::get()->existsResource(videoToOpen))
fname = videoToOpen;
if(CResourceHandler::get()->existsResource(videoToOpen))
state.actualPath = videoToOpen;
else
fname = videoToOpen.addPrefix("VIDEO/");
state.actualPath = videoToOpen.addPrefix("VIDEO/");
if (!CResourceHandler::get()->existsResource(fname))
{
logGlobal->error("Error: video %s was not found", fname.getName());
return false;
}
data = CResourceHandler::get()->load(fname);
state.videoData = CResourceHandler::get()->load(state.actualPath);
static const int BUFFER_SIZE = 4096;
unsigned char * buffer = (unsigned char *)av_malloc(BUFFER_SIZE);// will be freed by ffmpeg
context = avio_alloc_context( buffer, BUFFER_SIZE, 0, (void *)this, lodRead, nullptr, lodSeek);
auto * buffer = static_cast<unsigned char *>(av_malloc(BUFFER_SIZE)); // will be freed by ffmpeg
state.context = avio_alloc_context(buffer, BUFFER_SIZE, 0, state.videoData.get(), lodRead, nullptr, lodSeek);
format = avformat_alloc_context();
format->pb = context;
state.formatContext = avformat_alloc_context();
state.formatContext->pb = state.context;
// filename is not needed - file was already open and stored in this->data;
int avfopen = avformat_open_input(&format, "dummyFilename", nullptr, nullptr);
int avfopen = avformat_open_input(&state.formatContext, "dummyFilename", nullptr, nullptr);
if(avfopen != 0)
throwFFmpegError(avfopen);
if (avfopen != 0)
{
return false;
}
// Retrieve stream information
if (avformat_find_stream_info(format, nullptr) < 0)
return false;
int findStreamInfo = avformat_find_stream_info(state.formatContext, nullptr);
// Find the first video stream
stream = -1;
for(ui32 i=0; i<format->nb_streams; i++)
if(avfopen < 0)
throwFFmpegError(findStreamInfo);
for(int i = 0; i < state.formatContext->nb_streams; i++)
{
if (format->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
if(state.formatContext->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && video.streamIndex == -1)
{
stream = i;
break;
}
openStream(video, i);
}
if (stream < 0)
// No video stream in that file
return false;
// Find the decoder for the video stream
codec = avcodec_find_decoder(format->streams[stream]->codecpar->codec_id);
if (codec == nullptr)
{
// Unsupported codec
return false;
if(state.formatContext->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && audio.streamIndex == -1)
openStream(audio, i);
}
}
void CVideoInstance::openStream(FFMpegStreamState & streamState, int streamIndex)
{
streamState.streamIndex = streamIndex;
// Find the decoder for the stream
streamState.codec = avcodec_find_decoder(state.formatContext->streams[streamIndex]->codecpar->codec_id);
if(streamState.codec == nullptr)
throw std::runtime_error("Unsupported codec");
streamState.codecContext = avcodec_alloc_context3(streamState.codec);
if(streamState.codecContext == nullptr)
throw std::runtime_error("Failed to create codec context");
codecContext = avcodec_alloc_context3(codec);
if(!codecContext)
return false;
// Get a pointer to the codec context for the video stream
int ret = avcodec_parameters_to_context(codecContext, format->streams[stream]->codecpar);
if (ret < 0)
int ret = avcodec_parameters_to_context(streamState.codecContext, state.formatContext->streams[streamIndex]->codecpar);
if(ret < 0)
{
//We cannot get codec from parameters
avcodec_free_context(&codecContext);
return false;
avcodec_free_context(&streamState.codecContext);
throwFFmpegError(ret);
}
// Open codec
if ( avcodec_open2(codecContext, codec, nullptr) < 0 )
ret = avcodec_open2(streamState.codecContext, streamState.codec, nullptr);
if(ret < 0)
{
// Could not open codec
codec = nullptr;
return false;
streamState.codec = nullptr;
throwFFmpegError(ret);
}
}
void CVideoInstance::prepareOutput(bool scaleToScreenSize, bool useTextureOutput)
{
if (video.streamIndex == -1)
throw std::runtime_error("Invalid file state! No video stream!");
// Allocate video frame
frame = av_frame_alloc();
output.frame = av_frame_alloc();
//setup scaling
if(scale)
if(scaleToScreenSize)
{
pos.w = screen->w;
pos.h = screen->h;
output.dimensions.x = screen->w;
output.dimensions.y = screen->h;
}
else
{
pos.w = codecContext->width;
pos.h = codecContext->height;
output.dimensions.x = video.codecContext->width;
output.dimensions.y = video.codecContext->height;
}
// Allocate a place to put our YUV image on that screen
if (overlay)
if (useTextureOutput)
{
texture = SDL_CreateTexture( mainRenderer, SDL_PIXELFORMAT_IYUV, SDL_TEXTUREACCESS_STATIC, pos.w, pos.h);
}
else
{
dest = CSDL_Ext::newSurface(pos.w, pos.h);
destRect.x = destRect.y = 0;
destRect.w = pos.w;
destRect.h = pos.h;
}
if (texture == nullptr && dest == nullptr)
return false;
if (texture)
{ // Convert the image into YUV format that SDL uses
sws = sws_getContext(codecContext->width, codecContext->height, codecContext->pix_fmt,
pos.w, pos.h,
AV_PIX_FMT_YUV420P,
output.texture = SDL_CreateTexture( mainRenderer, SDL_PIXELFORMAT_IYUV, SDL_TEXTUREACCESS_STREAMING, output.dimensions.x, output.dimensions.y);
output.sws = sws_getContext(video.codecContext->width, video.codecContext->height, video.codecContext->pix_fmt,
output.dimensions.x, output.dimensions.y, AV_PIX_FMT_YUV420P,
SWS_BICUBIC, nullptr, nullptr, nullptr);
}
else
{
AVPixelFormat screenFormat = AV_PIX_FMT_NONE;
if (screen->format->Bshift > screen->format->Rshift)
{
// this a BGR surface
switch (screen->format->BytesPerPixel)
{
case 2: screenFormat = AV_PIX_FMT_BGR565; break;
case 3: screenFormat = AV_PIX_FMT_BGR24; break;
case 4: screenFormat = AV_PIX_FMT_BGR32; break;
default: return false;
}
}
else
{
// this a RGB surface
switch (screen->format->BytesPerPixel)
{
case 2: screenFormat = AV_PIX_FMT_RGB565; break;
case 3: screenFormat = AV_PIX_FMT_RGB24; break;
case 4: screenFormat = AV_PIX_FMT_RGB32; break;
default: return false;
}
}
sws = sws_getContext(codecContext->width, codecContext->height, codecContext->pix_fmt,
pos.w, pos.h, screenFormat,
output.surface = CSDL_Ext::newSurface(output.dimensions.x, output.dimensions.y);
output.sws = sws_getContext(video.codecContext->width, video.codecContext->height, video.codecContext->pix_fmt,
output.dimensions.x, output.dimensions.y, AV_PIX_FMT_RGB32,
SWS_BICUBIC, nullptr, nullptr, nullptr);
}
if (sws == nullptr)
return false;
return true;
if (output.sws == nullptr)
throw std::runtime_error("Failed to create sws");
}
// Read the next frame. Return false on error/end of file.
bool CVideoPlayer::nextFrame()
bool CVideoInstance::nextFrame()
{
AVPacket packet;
int frameFinished = 0;
bool gotError = false;
if (sws == nullptr)
for(;;)
{
int ret = av_read_frame(state.formatContext, &packet);
if(ret < 0)
{
if(ret == AVERROR_EOF)
return false;
throwFFmpegError(ret);
}
while(!frameFinished)
{
int ret = av_read_frame(format, &packet);
if (ret < 0)
{
// Error. It's probably an end of file.
if (doLoop && !gotError)
{
// Rewind
frameTime = 0;
if (av_seek_frame(format, stream, 0, AVSEEK_FLAG_BYTE) < 0)
break;
gotError = true;
}
else
{
break;
}
}
else
{
// Is this a packet from the video stream?
if (packet.stream_index == stream)
if(packet.stream_index == video.streamIndex)
{
// Decode video frame
int rc = avcodec_send_packet(codecContext, &packet);
if (rc >=0)
packet.size = 0;
rc = avcodec_receive_frame(codecContext, frame);
if (rc >= 0)
frameFinished = 1;
// Did we get a video frame?
if (frameFinished)
{
uint8_t *data[4];
int rc = avcodec_send_packet(video.codecContext, &packet);
if(rc < 0)
throwFFmpegError(ret);
rc = avcodec_receive_frame(video.codecContext, output.frame);
if(rc < 0)
throwFFmpegError(ret);
uint8_t * data[4];
int linesize[4];
if (texture) {
av_image_alloc(data, linesize, pos.w, pos.h, AV_PIX_FMT_YUV420P, 1);
sws_scale(sws, frame->data, frame->linesize,
0, codecContext->height, data, linesize);
SDL_UpdateYUVTexture(texture, nullptr, data[0], linesize[0],
data[1], linesize[1],
data[2], linesize[2]);
if(output.texture)
{
av_image_alloc(data, linesize, output.dimensions.x, output.dimensions.y, AV_PIX_FMT_YUV420P, 1);
sws_scale(output.sws, output.frame->data, output.frame->linesize, 0, video.codecContext->height, data, linesize);
SDL_UpdateYUVTexture(output.texture, nullptr, data[0], linesize[0], data[1], linesize[1], data[2], linesize[2]);
av_freep(&data[0]);
}
else
{
/* Avoid buffer overflow caused by sws_scale():
* http://trac.ffmpeg.org/ticket/9254
* Currently (ffmpeg-4.4 with SSE3 enabled) sws_scale()
* has a few requirements for target data buffers on rescaling:
* 1. buffer has to be aligned to be usable for SIMD instructions
* 2. buffer has to be padded to allow small overflow by SIMD instructions
* Unfortunately SDL_Surface does not provide these guarantees.
* This means that atempt to rescale directly into SDL surface causes
* memory corruption. Usually it happens on campaign selection screen
* where short video moves start spinning on mouse hover.
*
* To fix [1.] we use av_malloc() for memory allocation.
* To fix [2.] we add an `ffmpeg_pad` that provides plenty of space.
* We have to use intermdiate buffer and then use memcpy() to land it
* to SDL_Surface.
*/
size_t pic_bytes = dest->pitch * dest->h;
size_t ffmped_pad = 1024; /* a few bytes of overflow will go here */
void * for_sws = av_malloc (pic_bytes + ffmped_pad);
data[0] = (ui8 *)for_sws;
linesize[0] = dest->pitch;
// Avoid buffer overflow caused by sws_scale():
// http://trac.ffmpeg.org/ticket/9254
sws_scale(sws, frame->data, frame->linesize,
0, codecContext->height, data, linesize);
memcpy(dest->pixels, for_sws, pic_bytes);
size_t pic_bytes = output.surface->pitch * output.surface->h;
size_t ffmped_pad = 1024; /* a few bytes of overflow will go here */
void * for_sws = av_malloc(pic_bytes + ffmped_pad);
data[0] = (ui8 *)for_sws;
linesize[0] = output.surface->pitch;
sws_scale(output.sws, output.frame->data, output.frame->linesize, 0, video.codecContext->height, data, linesize);
memcpy(output.surface->pixels, for_sws, pic_bytes);
av_free(for_sws);
}
}
}
av_packet_unref(&packet);
return true;
}
}
return frameFinished != 0;
}
void CVideoPlayer::show( int x, int y, SDL_Surface *dst, bool update )
bool CVideoInstance::videoEnded()
{
if (sws == nullptr)
return;
pos.x = x;
pos.y = y;
CSDL_Ext::blitSurface(dest, destRect, dst, pos.topLeft());
if (update)
CSDL_Ext::updateRect(dst, pos);
return output.videoEnded;
}
void CVideoPlayer::redraw( int x, int y, SDL_Surface *dst, bool update )
void CVideoInstance::close()
{
show(x, y, dst, update);
sws_freeContext(output.sws);
av_frame_free(&output.frame);
SDL_DestroyTexture(output.texture);
SDL_FreeSurface(output.surface);
// state.videoStream.codec???
// state.audioStream.codec???
avcodec_close(video.codecContext);
avcodec_free_context(&video.codecContext);
avcodec_close(audio.codecContext);
avcodec_free_context(&audio.codecContext);
avformat_close_input(&state.formatContext);
av_free(state.context);
output = FFMpegVideoOutput();
video = FFMpegStreamState();
audio = FFMpegStreamState();
state = FFMpegFileState();
}
void CVideoPlayer::update( int x, int y, SDL_Surface *dst, bool forceRedraw, bool update, std::function<void()> onVideoRestart)
CVideoInstance::~CVideoInstance()
{
if (sws == nullptr)
return;
close();
}
#if (LIBAVUTIL_VERSION_MAJOR < 58)
auto packet_duration = frame->pkt_duration;
#else
Point CVideoInstance::size()
{
if(!output.frame)
throw std::runtime_error("Invalid video frame!");
return Point(output.frame->width, output.frame->height);
}
void CVideoInstance::show(const Point & position, Canvas & canvas)
{
if(output.sws == nullptr)
throw std::runtime_error("No video to show!");
CSDL_Ext::blitSurface(output.surface, canvas.getInternalSurface(), position);
}
void CVideoInstance::tick(uint32_t msPassed)
{
if(output.sws == nullptr)
throw std::runtime_error("No video to show!");
if(output.videoEnded)
throw std::runtime_error("Video already ended!");
# if(LIBAVUTIL_VERSION_MAJOR < 58)
auto packet_duration = output.frame->pkt_duration;
# else
auto packet_duration = frame->duration;
#endif
double frameEndTime = (frame->pts + packet_duration) * av_q2d(format->streams[stream]->time_base);
frameTime += GH.framerate().getElapsedMilliseconds() / 1000.0;
# endif
double frameEndTime = (output.frame->pts + packet_duration) * av_q2d(state.formatContext->streams[video.streamIndex]->time_base);
output.frameTime += msPassed / 1000.0;
if (frameTime >= frameEndTime )
if(output.frameTime >= frameEndTime)
{
if (nextFrame())
show(x,y,dst,update);
else
{
if(onVideoRestart)
onVideoRestart();
VideoPath filenameToReopen = fname; // create copy to backup this->fname
open(filenameToReopen, false);
nextFrame();
// The y position is wrong at the first frame.
// Note: either the windows player or the linux player is
// broken. Compensate here until the bug is found.
show(x, y--, dst, update);
}
}
else
{
redraw(x, y, dst, update);
if(!nextFrame())
output.videoEnded = true;
}
}
void CVideoPlayer::close()
{
fname = VideoPath();
if (sws)
{
sws_freeContext(sws);
sws = nullptr;
}
if (texture)
{
SDL_DestroyTexture(texture);
texture = nullptr;
}
if (dest)
{
SDL_FreeSurface(dest);
dest = nullptr;
}
if (frame)
{
av_frame_free(&frame);//will be set to null
}
if (codec)
{
avcodec_close(codecContext);
codec = nullptr;
}
if (codecContext)
{
avcodec_free_context(&codecContext);
}
if (format)
{
avformat_close_input(&format);
}
if (context)
{
av_free(context);
context = nullptr;
}
}
# if 0
std::pair<std::unique_ptr<ui8 []>, si64> CVideoPlayer::getAudio(const VideoPath & videoToOpen)
{
std::pair<std::unique_ptr<ui8 []>, si64> dat(std::make_pair(nullptr, 0));
VideoPath fnameAudio;
FFMpegFileState audio;
openVideoFile(audio, videoToOpen);
if (CResourceHandler::get()->existsResource(videoToOpen))
fnameAudio = videoToOpen;
else
fnameAudio = videoToOpen.addPrefix("VIDEO/");
if (!CResourceHandler::get()->existsResource(fnameAudio))
if (audio.audioStream.streamIndex < 0)
{
logGlobal->error("Error: video %s was not found", fnameAudio.getName());
return dat;
}
dataAudio = CResourceHandler::get()->load(fnameAudio);
static const int BUFFER_SIZE = 4096;
unsigned char * bufferAudio = (unsigned char *)av_malloc(BUFFER_SIZE);// will be freed by ffmpeg
AVIOContext * contextAudio = avio_alloc_context( bufferAudio, BUFFER_SIZE, 0, (void *)this, lodReadAudio, nullptr, lodSeekAudio);
AVFormatContext * formatAudio = avformat_alloc_context();
formatAudio->pb = contextAudio;
// filename is not needed - file was already open and stored in this->data;
int avfopen = avformat_open_input(&formatAudio, "dummyFilename", nullptr, nullptr);
if (avfopen != 0)
{
return dat;
}
// Retrieve stream information
if (avformat_find_stream_info(formatAudio, nullptr) < 0)
return dat;
// Find the first audio stream
int streamAudio = -1;
for(ui32 i = 0; i < formatAudio->nb_streams; i++)
{
if (formatAudio->streams[i]->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
{
streamAudio = i;
break;
}
}
if(streamAudio < 0)
return dat;
const AVCodec *codecAudio = avcodec_find_decoder(formatAudio->streams[streamAudio]->codecpar->codec_id);
AVCodecContext *codecContextAudio;
if (codecAudio != nullptr)
codecContextAudio = avcodec_alloc_context3(codecAudio);
// Get a pointer to the codec context for the audio stream
if (streamAudio > -1)
{
int ret = avcodec_parameters_to_context(codecContextAudio, formatAudio->streams[streamAudio]->codecpar);
if (ret < 0)
{
//We cannot get codec from parameters
avcodec_free_context(&codecContextAudio);
}
closeVideoFile(audio);
return { nullptr, 0};
}
// Open codec
AVFrame *frameAudio;
if (codecAudio != nullptr)
{
if ( avcodec_open2(codecContextAudio, codecAudio, nullptr) < 0 )
{
// Could not open codec
codecAudio = nullptr;
}
// Allocate audio frame
frameAudio = av_frame_alloc();
}
AVFrame *frameAudio = av_frame_alloc();
AVPacket packet;
std::vector<ui8> samples;
while (av_read_frame(formatAudio, &packet) >= 0)
while (av_read_frame(audio.formatContext, &packet) >= 0)
{
if(packet.stream_index == streamAudio)
if(packet.stream_index == audio.audioStream.streamIndex)
{
int rc = avcodec_send_packet(codecContextAudio, &packet);
int rc = avcodec_send_packet(audio.audioStream.codecContext, &packet);
if (rc >= 0)
packet.size = 0;
rc = avcodec_receive_frame(codecContextAudio, frameAudio);
int bytesToRead = (frameAudio->nb_samples * 2 * (formatAudio->streams[streamAudio]->codecpar->bits_per_coded_sample / 8));
rc = avcodec_receive_frame(audio.audioStream.codecContext, frameAudio);
int bytesToRead = (frameAudio->nb_samples * 2 * (audio.formatContext->streams[audio.audioStream.streamIndex]->codecpar->bits_per_coded_sample / 8));
if (rc >= 0)
for (int s = 0; s < bytesToRead; s += sizeof(ui8))
{
@ -561,7 +345,6 @@ std::pair<std::unique_ptr<ui8 []>, si64> CVideoPlayer::getAudio(const VideoPath
samples.push_back(value);
}
}
av_packet_unref(&packet);
}
@ -584,8 +367,8 @@ std::pair<std::unique_ptr<ui8 []>, si64> CVideoPlayer::getAudio(const VideoPath
wav_hdr wav;
wav.ChunkSize = samples.size() + sizeof(wav_hdr) - 8;
wav.Subchunk2Size = samples.size() + sizeof(wav_hdr) - 44;
wav.SamplesPerSec = formatAudio->streams[streamAudio]->codecpar->sample_rate;
wav.bitsPerSample = formatAudio->streams[streamAudio]->codecpar->bits_per_coded_sample;
wav.SamplesPerSec = audio.formatContext->streams[audio.audioStream.streamIndex]->codecpar->sample_rate;
wav.bitsPerSample = audio.formatContext->streams[audio.audioStream.streamIndex]->codecpar->bits_per_coded_sample;
auto wavPtr = reinterpret_cast<ui8*>(&wav);
dat = std::make_pair(std::make_unique<ui8[]>(samples.size() + sizeof(wav_hdr)), samples.size() + sizeof(wav_hdr));
@ -595,48 +378,23 @@ std::pair<std::unique_ptr<ui8 []>, si64> CVideoPlayer::getAudio(const VideoPath
if (frameAudio)
av_frame_free(&frameAudio);
if (codecAudio)
{
avcodec_close(codecContextAudio);
codecAudio = nullptr;
}
if (codecContextAudio)
avcodec_free_context(&codecContextAudio);
if (formatAudio)
avformat_close_input(&formatAudio);
if (contextAudio)
{
av_free(contextAudio);
contextAudio = nullptr;
}
closeVideoFile(audio);
return dat;
}
Point CVideoPlayer::size()
{
if(frame)
return Point(frame->width, frame->height);
else
return Point(0, 0);
}
# endif
// Plays a video. Only works for overlays.
bool CVideoPlayer::playVideo(int x, int y, bool stopOnKey, bool overlay)
bool CVideoPlayer::openAndPlayVideoImpl(const VideoPath & name, const Point & position, bool useOverlay, bool scale, bool stopOnKey)
{
// Note: either the windows player or the linux player is
// broken. Compensate here until the bug is found.
y--;
CVideoInstance instance;
pos.x = x;
pos.y = y;
frameTime = 0.0;
instance.open(name);
instance.prepareOutput(scale, useOverlay);
auto lastTimePoint = boost::chrono::steady_clock::now();
while(nextFrame())
while(instance.nextFrame())
{
if(stopOnKey)
{
@ -645,26 +403,28 @@ bool CVideoPlayer::playVideo(int x, int y, bool stopOnKey, bool overlay)
return false;
}
SDL_Rect rect = CSDL_Ext::toSDL(pos);
SDL_Rect rect;
rect.x = position.x;
rect.y = position.y;
rect.w = instance.output.dimensions.x;
rect.h = instance.output.dimensions.y;
if(overlay)
{
if(useOverlay)
SDL_RenderFillRect(mainRenderer, &rect);
}
else
{
SDL_RenderClear(mainRenderer);
}
SDL_RenderCopy(mainRenderer, texture, nullptr, &rect);
SDL_RenderCopy(mainRenderer, instance.output.texture, nullptr, &rect);
SDL_RenderPresent(mainRenderer);
#if (LIBAVUTIL_VERSION_MAJOR < 58)
auto packet_duration = frame->pkt_duration;
auto packet_duration = instance.output.frame->pkt_duration;
#else
auto packet_duration = frame->duration;
auto packet_duration = output.frame->duration;
#endif
// Framerate delay
double targetFrameTimeSeconds = packet_duration * av_q2d(format->streams[stream]->time_base);
double targetFrameTimeSeconds = packet_duration * av_q2d(instance.state.formatContext->streams[instance.video.streamIndex]->time_base);
auto targetFrameTime = boost::chrono::milliseconds(static_cast<int>(1000 * (targetFrameTimeSeconds)));
auto timePointAfterPresent = boost::chrono::steady_clock::now();
@ -675,39 +435,32 @@ bool CVideoPlayer::playVideo(int x, int y, bool stopOnKey, bool overlay)
lastTimePoint = boost::chrono::steady_clock::now();
}
return true;
}
bool CVideoPlayer::openAndPlayVideo(const VideoPath & name, int x, int y, EVideoType videoType)
bool CVideoPlayer::playIntroVideo(const VideoPath & name)
{
bool scale;
bool stopOnKey;
bool overlay;
switch(videoType)
{
case EVideoType::INTRO:
stopOnKey = true;
scale = true;
overlay = false;
break;
case EVideoType::SPELLBOOK:
default:
stopOnKey = false;
scale = false;
overlay = true;
}
open(name, false, true, scale);
bool ret = playVideo(x, y, stopOnKey, overlay);
close();
return ret;
return openAndPlayVideoImpl(name, Point(0,0), true, true, true);
}
CVideoPlayer::~CVideoPlayer()
void CVideoPlayer::playSpellbookAnimation(const VideoPath & name, const Point & position)
{
close();
openAndPlayVideoImpl(name, position, false, false, false);
}
std::unique_ptr<IVideoInstance> CVideoPlayer::open(const VideoPath & name, bool scaleToScreen)
{
auto result = std::make_unique<CVideoInstance>();
result->open(name);
result->prepareOutput(scaleToScreen, false);
return result;
}
std::pair<std::unique_ptr<ui8 []>, si64> CVideoPlayer::getAudio(const VideoPath & videoToOpen)
{
return {nullptr, 0};
}
#endif

108
client/media/CVideoHandler.h
View File

@ -11,9 +11,9 @@
#ifndef DISABLE_VIDEO
#include "IVideoPlayer.h"
# include "IVideoPlayer.h"
#include "../lib/Rect.h"
# include "../lib/Rect.h"
struct SDL_Surface;
struct SDL_Texture;
@ -27,55 +27,69 @@ VCMI_LIB_NAMESPACE_BEGIN
class CInputStream;
VCMI_LIB_NAMESPACE_END
struct FFMpegStreamState
{
int streamIndex = -1;
const AVCodec * codec = nullptr;
AVCodecContext * codecContext = nullptr;
};
struct FFMpegFileState
{
VideoPath actualPath;
std::unique_ptr<CInputStream> videoData;
AVIOContext * context = nullptr;
AVFormatContext * formatContext = nullptr;
};
struct FFMpegVideoOutput
{
AVFrame * frame = nullptr;
struct SwsContext * sws = nullptr;
SDL_Texture * texture = nullptr;
SDL_Surface * surface = nullptr;
Point dimensions;
/// video playback current progress, in seconds
double frameTime = 0.0;
bool videoEnded = false;
};
class CVideoInstance final : public IVideoInstance
{
friend class CVideoPlayer;
FFMpegFileState state;
FFMpegStreamState video;
FFMpegStreamState audio;
FFMpegVideoOutput output;
void open(const VideoPath & fname);
void openStream(FFMpegStreamState & streamState, int streamIndex);
void prepareOutput(bool scaleToScreenSize, bool useTextureOutput);
bool nextFrame();
void close();
public:
~CVideoInstance();
bool videoEnded() final;
Point size() final;
void show(const Point & position, Canvas & canvas) final;
void tick(uint32_t msPassed) final;
};
class CVideoPlayer final : public IVideoPlayer
{
int stream; // stream index in video
AVFormatContext *format;
AVCodecContext *codecContext; // codec context for stream
const AVCodec *codec;
AVFrame *frame;
struct SwsContext *sws;
bool openAndPlayVideoImpl(const VideoPath & name, const Point & position, bool useOverlay, bool scale, bool stopOnKey);
void openVideoFile(CVideoInstance & state, const VideoPath & fname);
AVIOContext * context;
VideoPath fname; //name of current video file (empty if idle)
// Destination. Either overlay or dest.
SDL_Texture *texture;
SDL_Surface *dest;
Rect destRect; // valid when dest is used
Rect pos; // destination on screen
/// video playback currnet progress, in seconds
double frameTime;
bool doLoop; // loop through video
bool playVideo(int x, int y, bool stopOnKey, bool overlay);
bool open(const VideoPath & fname, bool loop, bool useOverlay, bool scale);
public:
CVideoPlayer();
~CVideoPlayer();
bool init();
bool open(const VideoPath & fname, bool scale) override;
void close() override;
bool nextFrame() override; // display next frame
void show(int x, int y, SDL_Surface *dst, bool update) override; //blit current frame
void redraw(int x, int y, SDL_Surface *dst, bool update) override; //reblits buffer
void update(int x, int y, SDL_Surface *dst, bool forceRedraw, bool update, std::function<void()> onVideoRestart) override; //moves to next frame if appropriate, and blits it or blits only if redraw parameter is set true
// Opens video, calls playVideo, closes video; returns playVideo result (if whole video has been played)
bool openAndPlayVideo(const VideoPath & name, int x, int y, EVideoType videoType) override;
std::pair<std::unique_ptr<ui8 []>, si64> getAudio(const VideoPath & videoToOpen) override;
Point size() override;
// public to allow access from ffmpeg IO functions
std::unique_ptr<CInputStream> data;
std::unique_ptr<CInputStream> dataAudio;
bool playIntroVideo(const VideoPath & name) final;
void playSpellbookAnimation(const VideoPath & name, const Point & position) final;
std::unique_ptr<IVideoInstance> open(const VideoPath & name, bool scaleToScreen) final;
std::pair<std::unique_ptr<ui8[]>, si64> getAudio(const VideoPath & videoToOpen) final;
};
#endif

40
client/media/IVideoPlayer.h
View File

@ -11,30 +11,44 @@
#include "../lib/filesystem/ResourcePath.h"
struct SDL_Surface;
class Canvas;
VCMI_LIB_NAMESPACE_BEGIN
class Point;
VCMI_LIB_NAMESPACE_END
enum class EVideoType : ui8
class IVideoInstance
{
INTRO = 0, // use entire window: stopOnKey = true, scale = true, overlay = false
SPELLBOOK // overlay video: stopOnKey = false, scale = false, overlay = true
public:
/// Returns true if video playback is over
virtual bool videoEnded() = 0;
/// Returns dimensions of the video
virtual Point size() = 0;
/// Displays current frame at specified position
virtual void show(const Point & position, Canvas & canvas) = 0;
/// Advances video playback by specified duration
virtual void tick(uint32_t msPassed) = 0;
virtual ~IVideoInstance() = default;
};
class IVideoPlayer : boost::noncopyable
{
public:
virtual bool open(const VideoPath & name, bool scale = false)=0; //true - succes
virtual void close()=0;
virtual bool nextFrame()=0;
virtual void show(int x, int y, SDL_Surface *dst, bool update = true)=0;
virtual void redraw(int x, int y, SDL_Surface *dst, bool update = true)=0; //reblits buffer
virtual void update(int x, int y, SDL_Surface *dst, bool forceRedraw, bool update = true, std::function<void()> restart = nullptr) = 0;
virtual bool openAndPlayVideo(const VideoPath & name, int x, int y, EVideoType videoType) = 0;
virtual std::pair<std::unique_ptr<ui8 []>, si64> getAudio(const VideoPath & videoToOpen) = 0;
virtual Point size() = 0;
/// Plays video on top of the screen, returns only after playback is over, aborts on input event
virtual bool playIntroVideo(const VideoPath & name) = 0;
/// Plays video on top of the screen, returns only after playback is over
virtual void playSpellbookAnimation(const VideoPath & name, const Point & position) = 0;
/// Load video from specified path. Returns nullptr on failure
virtual std::unique_ptr<IVideoInstance> open(const VideoPath & name, bool scaleToScreen) = 0;
/// Extracts audio data from provided video in wav format. Return nullptr on failure
virtual std::pair<std::unique_ptr<ui8[]>, si64> getAudio(const VideoPath & videoToOpen) = 0;
virtual ~IVideoPlayer() = default;
};

43
client/widgets/VideoWidget.cpp
View File

@ -11,58 +11,73 @@
#include "VideoWidget.h"
#include "../CGameInfo.h"
#include "../media/IVideoPlayer.h"
#include "../media/ISoundPlayer.h"
#include "../render/Canvas.h"
#include "../gui/CGuiHandler.h"
#include "../gui/WindowHandler.h"
#include "../media/ISoundPlayer.h"
#include "../media/IVideoPlayer.h"
#include "../render/Canvas.h"
VideoWidget::VideoWidget(const Point & position, const VideoPath & looped)
: VideoWidget(position, VideoPath(), looped)
{
addUsedEvents(TIME);
}
VideoWidget::VideoWidget(const Point & position, const VideoPath & prologue, const VideoPath & looped)
:current(prologue)
,next(looped)
,videoSoundHandle(-1)
: current(prologue)
, next(looped)
, videoSoundHandle(-1)
{
if(current.empty())
videoInstance = CCS->videoh->open(looped, false);
else
videoInstance = CCS->videoh->open(current, false);
}
VideoWidget::~VideoWidget() = default;
void VideoWidget::show(Canvas & to)
{
CCS->videoh->update(pos.x + 107, pos.y + 70, to.getInternalSurface(), true, false);
if(videoInstance)
videoInstance->show(pos.topLeft(), to);
}
void VideoWidget::activate()
{
CCS->videoh->open(current);
auto audioData = CCS->videoh->getAudio(current);
videoSoundHandle = CCS->soundh->playSound(audioData, -1);
if (videoSoundHandle != -1)
if(videoSoundHandle != -1)
{
CCS->soundh->setCallback(videoSoundHandle, [this](){
if (GH.windows().isTopWindow(this))
CCS->soundh->setCallback(
videoSoundHandle,
[this]()
{
if(GH.windows().isTopWindow(this))
this->videoSoundHandle = -1;
});
}
);
}
}
void VideoWidget::deactivate()
{
CCS->videoh->close();
CCS->soundh->stopSound(videoSoundHandle);
}
void VideoWidget::showAll(Canvas & to)
{
CCS->videoh->update(pos.x + 107, pos.y + 70, to.getInternalSurface(), true, false);
if(videoInstance)
videoInstance->show(pos.topLeft(), to);
}
void VideoWidget::tick(uint32_t msPassed)
{
if(videoInstance)
{
videoInstance->tick(msPassed);
if(videoInstance->videoEnded())
videoInstance = CCS->videoh->open(next, false);
}
}

5
client/widgets/VideoWidget.h
View File

@ -13,12 +13,17 @@
#include "../lib/filesystem/ResourcePath.h"
class IVideoInstance;
class VideoWidget final : public CIntObject
{
std::unique_ptr<IVideoInstance> videoInstance;
VideoPath current;
VideoPath next;
int videoSoundHandle;
public:
VideoWidget(const Point & position, const VideoPath & prologue, const VideoPath & looped);
VideoWidget(const Point & position, const VideoPath & looped);

4
client/windows/CSpellWindow.cpp
View File

@ -524,13 +524,13 @@ void CSpellWindow::setCurrentPage(int value)
void CSpellWindow::turnPageLeft()
{
if(settings["video"]["spellbookAnimation"].Bool() && !isBigSpellbook)
CCS->videoh->openAndPlayVideo(VideoPath::builtin("PGTRNLFT.SMK"), pos.x+13, pos.y+15, EVideoType::SPELLBOOK);
CCS->videoh->playSpellbookAnimation(VideoPath::builtin("PGTRNLFT.SMK"), pos.topLeft() + Point(13, 15));
}
void CSpellWindow::turnPageRight()
{
if(settings["video"]["spellbookAnimation"].Bool() && !isBigSpellbook)
CCS->videoh->openAndPlayVideo(VideoPath::builtin("PGTRNRGH.SMK"), pos.x+13, pos.y+15, EVideoType::SPELLBOOK);
CCS->videoh->playSpellbookAnimation(VideoPath::builtin("PGTRNRGH.SMK"), pos.topLeft() + Point(13, 15));
}
void CSpellWindow::keyPressed(EShortcut key)