mirror of
https://github.com/vcmi/vcmi.git
synced 2024-12-22 22:13:35 +02:00
490 lines
10 KiB
C++
490 lines
10 KiB
C++
#include "StdInc.h"
|
|
#include <SDL.h>
|
|
#include "CVideoHandler.h"
|
|
|
|
#include "gui/CGuiHandler.h"
|
|
#include "gui/SDL_Extensions.h"
|
|
#include "CPlayerInterface.h"
|
|
#include "../lib/filesystem/Filesystem.h"
|
|
|
|
extern CGuiHandler GH; //global gui handler
|
|
|
|
#ifndef DISABLE_VIDEO
|
|
//reads events and returns true on key down
|
|
static bool keyDown()
|
|
{
|
|
SDL_Event ev;
|
|
while(SDL_PollEvent(&ev))
|
|
{
|
|
if(ev.type == SDL_KEYDOWN || ev.type == SDL_MOUSEBUTTONDOWN)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
#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)
|
|
{
|
|
auto video = reinterpret_cast<CVideoPlayer *>(opaque);
|
|
|
|
return video->data->read(buf, size);
|
|
}
|
|
|
|
static si64 lodSeek(void * opaque, si64 pos, int whence)
|
|
{
|
|
auto video = reinterpret_cast<CVideoPlayer *>(opaque);
|
|
|
|
if (whence & AVSEEK_SIZE)
|
|
return video->data->getSize();
|
|
|
|
return video->data->seek(pos);
|
|
}
|
|
|
|
CVideoPlayer::CVideoPlayer()
|
|
{
|
|
format = nullptr;
|
|
frame = nullptr;
|
|
codec = nullptr;
|
|
sws = nullptr;
|
|
#ifdef VCMI_SDL1
|
|
overlay = nullptr;
|
|
#else
|
|
texture = nullptr;
|
|
#endif
|
|
dest = nullptr;
|
|
context = nullptr;
|
|
|
|
// Register codecs. TODO: May be overkill. Should call a
|
|
// combination of av_register_input_format() /
|
|
// av_register_output_format() / av_register_protocol() instead.
|
|
av_register_all();
|
|
}
|
|
|
|
bool CVideoPlayer::open(std::string fname, bool scale/* = false*/)
|
|
{
|
|
return open(fname, true, false);
|
|
}
|
|
|
|
// loop = to loop through the video
|
|
// useOverlay = directly write to the screen.
|
|
bool CVideoPlayer::open(std::string fname, bool loop, bool useOverlay, bool scale /*= false*/)
|
|
{
|
|
close();
|
|
|
|
this->fname = fname;
|
|
refreshWait = 3;
|
|
refreshCount = -1;
|
|
doLoop = loop;
|
|
|
|
ResourceID resource(std::string("Video/") + fname, EResType::VIDEO);
|
|
|
|
if (!CResourceHandler::get()->existsResource(resource))
|
|
{
|
|
logGlobal->errorStream() << "Error: video " << resource.getName() << " was not found";
|
|
return false;
|
|
}
|
|
|
|
data = CResourceHandler::get()->load(resource);
|
|
|
|
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);
|
|
|
|
format = avformat_alloc_context();
|
|
format->pb = context;
|
|
// filename is not needed - file was already open and stored in this->data;
|
|
int avfopen = avformat_open_input(&format, "dummyFilename", nullptr, nullptr);
|
|
|
|
if (avfopen != 0)
|
|
{
|
|
return false;
|
|
}
|
|
// Retrieve stream information
|
|
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(53, 17, 0)
|
|
if (av_find_stream_info(format) < 0)
|
|
#else
|
|
if (avformat_find_stream_info(format, nullptr) < 0)
|
|
#endif
|
|
return false;
|
|
|
|
// Find the first video stream
|
|
stream = -1;
|
|
for(ui32 i=0; i<format->nb_streams; i++)
|
|
{
|
|
if (format->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO)
|
|
{
|
|
stream = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (stream < 0)
|
|
// No video stream in that file
|
|
return false;
|
|
|
|
// Get a pointer to the codec context for the video stream
|
|
codecContext = format->streams[stream]->codec;
|
|
|
|
// Find the decoder for the video stream
|
|
codec = avcodec_find_decoder(codecContext->codec_id);
|
|
|
|
if (codec == nullptr)
|
|
{
|
|
// Unsupported codec
|
|
return false;
|
|
}
|
|
|
|
// Open codec
|
|
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(53, 6, 0)
|
|
if ( avcodec_open(codecContext, codec) < 0 )
|
|
#else
|
|
if ( avcodec_open2(codecContext, codec, nullptr) < 0 )
|
|
#endif
|
|
{
|
|
// Could not open codec
|
|
codec = nullptr;
|
|
return false;
|
|
}
|
|
|
|
// Allocate video frame
|
|
frame = avcodec_alloc_frame();
|
|
|
|
//setup scaling
|
|
|
|
if(scale)
|
|
{
|
|
pos.w = screen->w;
|
|
pos.h = screen->h;
|
|
}
|
|
else
|
|
{
|
|
pos.w = codecContext->width;
|
|
pos.h = codecContext->height;
|
|
}
|
|
|
|
// Allocate a place to put our YUV image on that screen
|
|
if (useOverlay)
|
|
{
|
|
#ifdef VCMI_SDL1
|
|
overlay = SDL_CreateYUVOverlay(pos.w, pos.h,
|
|
SDL_YV12_OVERLAY, screen);
|
|
#else
|
|
texture = SDL_CreateTexture( mainRenderer, SDL_PIXELFORMAT_IYUV, SDL_TEXTUREACCESS_STATIC, pos.w, pos.h);
|
|
#endif
|
|
|
|
}
|
|
else
|
|
{
|
|
dest = CSDL_Ext::newSurface(pos.w, pos.h);
|
|
destRect.x = destRect.y = 0;
|
|
destRect.w = pos.w;
|
|
destRect.h = pos.h;
|
|
}
|
|
#ifdef VCMI_SDL1
|
|
if (overlay == nullptr && dest == nullptr)
|
|
return false;
|
|
|
|
if (overlay)
|
|
#else
|
|
if (texture == nullptr && dest == nullptr)
|
|
return false;
|
|
|
|
if (texture)
|
|
#endif
|
|
{ // Convert the image into YUV format that SDL uses
|
|
sws = sws_getContext(codecContext->width, codecContext->height, codecContext->pix_fmt,
|
|
pos.w, pos.h, PIX_FMT_YUV420P,
|
|
SWS_BICUBIC, nullptr, nullptr, nullptr);
|
|
}
|
|
else
|
|
{
|
|
|
|
PixelFormat screenFormat = PIX_FMT_NONE;
|
|
if (screen->format->Bshift > screen->format->Rshift)
|
|
{
|
|
// this a BGR surface
|
|
switch (screen->format->BytesPerPixel)
|
|
{
|
|
case 2: screenFormat = PIX_FMT_BGR565; break;
|
|
case 3: screenFormat = PIX_FMT_BGR24; break;
|
|
case 4: screenFormat = PIX_FMT_BGR32; break;
|
|
default: return false;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// this a RGB surface
|
|
switch (screen->format->BytesPerPixel)
|
|
{
|
|
case 2: screenFormat = PIX_FMT_RGB565; break;
|
|
case 3: screenFormat = PIX_FMT_RGB24; break;
|
|
case 4: screenFormat = PIX_FMT_RGB32; break;
|
|
default: return false;
|
|
}
|
|
}
|
|
|
|
sws = sws_getContext(codecContext->width, codecContext->height, codecContext->pix_fmt,
|
|
pos.w, pos.h, screenFormat,
|
|
SWS_BICUBIC, nullptr, nullptr, nullptr);
|
|
}
|
|
|
|
if (sws == nullptr)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
// Read the next frame. Return false on error/end of file.
|
|
bool CVideoPlayer::nextFrame()
|
|
{
|
|
AVPacket packet;
|
|
int frameFinished = 0;
|
|
bool gotError = false;
|
|
|
|
if (sws == nullptr)
|
|
return false;
|
|
|
|
while(!frameFinished)
|
|
{
|
|
int ret = av_read_frame(format, &packet);
|
|
if (ret < 0)
|
|
{
|
|
// Error. It's probably an end of file.
|
|
if (doLoop && !gotError)
|
|
{
|
|
// Rewind
|
|
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)
|
|
{
|
|
// Decode video frame
|
|
|
|
avcodec_decode_video2(codecContext, frame, &frameFinished, &packet);
|
|
|
|
// Did we get a video frame?
|
|
if (frameFinished)
|
|
{
|
|
AVPicture pict;
|
|
|
|
#ifdef VCMI_SDL1
|
|
if (overlay) {
|
|
SDL_LockYUVOverlay(overlay);
|
|
|
|
pict.data[0] = overlay->pixels[0];
|
|
pict.data[1] = overlay->pixels[2];
|
|
pict.data[2] = overlay->pixels[1];
|
|
|
|
pict.linesize[0] = overlay->pitches[0];
|
|
pict.linesize[1] = overlay->pitches[2];
|
|
pict.linesize[2] = overlay->pitches[1];
|
|
|
|
sws_scale(sws, frame->data, frame->linesize,
|
|
0, codecContext->height, pict.data, pict.linesize);
|
|
|
|
SDL_UnlockYUVOverlay(overlay);
|
|
#else
|
|
if (texture) {
|
|
avpicture_alloc(&pict, AV_PIX_FMT_YUV420P, pos.w, pos.h);
|
|
|
|
sws_scale(sws, frame->data, frame->linesize,
|
|
0, codecContext->height, pict.data, pict.linesize);
|
|
|
|
SDL_UpdateYUVTexture(texture, NULL, pict.data[0], pict.linesize[0],
|
|
pict.data[1], pict.linesize[1],
|
|
pict.data[2], pict.linesize[2]);
|
|
avpicture_free(&pict);
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
pict.data[0] = (ui8 *)dest->pixels;
|
|
pict.linesize[0] = dest->pitch;
|
|
|
|
sws_scale(sws, frame->data, frame->linesize,
|
|
0, codecContext->height, pict.data, pict.linesize);
|
|
}
|
|
}
|
|
}
|
|
|
|
av_free_packet(&packet);
|
|
}
|
|
}
|
|
|
|
return frameFinished != 0;
|
|
}
|
|
|
|
void CVideoPlayer::show( int x, int y, SDL_Surface *dst, bool update )
|
|
{
|
|
if (sws == nullptr)
|
|
return;
|
|
|
|
pos.x = x;
|
|
pos.y = y;
|
|
CSDL_Ext::blitSurface(dest, &destRect, dst, &pos);
|
|
|
|
if (update)
|
|
SDL_UpdateRect(dst, pos.x, pos.y, pos.w, pos.h);
|
|
}
|
|
|
|
void CVideoPlayer::redraw( int x, int y, SDL_Surface *dst, bool update )
|
|
{
|
|
show(x, y, dst, update);
|
|
}
|
|
|
|
void CVideoPlayer::update( int x, int y, SDL_Surface *dst, bool forceRedraw, bool update )
|
|
{
|
|
if (sws == nullptr)
|
|
return;
|
|
|
|
if (refreshCount <= 0)
|
|
{
|
|
refreshCount = refreshWait;
|
|
if (nextFrame())
|
|
show(x,y,dst,update);
|
|
else
|
|
{
|
|
open(fname);
|
|
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);
|
|
}
|
|
|
|
refreshCount --;
|
|
}
|
|
|
|
void CVideoPlayer::close()
|
|
{
|
|
fname = "";
|
|
if (sws)
|
|
{
|
|
sws_freeContext(sws);
|
|
sws = nullptr;
|
|
}
|
|
|
|
#ifdef VCMI_SDL1
|
|
if (overlay)
|
|
{
|
|
SDL_FreeYUVOverlay(overlay);
|
|
overlay = nullptr;
|
|
}
|
|
#else
|
|
if (texture)
|
|
{
|
|
SDL_DestroyTexture(texture);
|
|
texture = nullptr;
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
if (dest)
|
|
{
|
|
SDL_FreeSurface(dest);
|
|
dest = nullptr;
|
|
}
|
|
|
|
if (frame)
|
|
{
|
|
av_free(frame);
|
|
frame = nullptr;
|
|
}
|
|
|
|
if (codec)
|
|
{
|
|
avcodec_close(codecContext);
|
|
codec = nullptr;
|
|
codecContext = nullptr;
|
|
}
|
|
|
|
if (format)
|
|
{
|
|
#if LIBAVCODEC_VERSION_INT < AV_VERSION_INT(53, 17, 0)
|
|
av_close_input_file(format);
|
|
format = nullptr;
|
|
#else
|
|
avformat_close_input(&format);
|
|
#endif
|
|
}
|
|
|
|
if (context)
|
|
{
|
|
av_free(context);
|
|
context = nullptr;
|
|
}
|
|
}
|
|
|
|
// Plays a video. Only works for overlays.
|
|
bool CVideoPlayer::playVideo(int x, int y, SDL_Surface *dst, bool stopOnKey)
|
|
{
|
|
// Note: either the windows player or the linux player is
|
|
// broken. Compensate here until the bug is found.
|
|
y--;
|
|
|
|
pos.x = x;
|
|
pos.y = y;
|
|
|
|
while(nextFrame())
|
|
{
|
|
|
|
if(stopOnKey && keyDown())
|
|
return false;
|
|
|
|
#ifdef VCMI_SDL1
|
|
SDL_DisplayYUVOverlay(overlay, &pos);
|
|
#else
|
|
SDL_RenderCopy(mainRenderer, texture, NULL, &pos);
|
|
SDL_RenderPresent(mainRenderer);
|
|
#endif
|
|
|
|
|
|
// Wait 3 frames
|
|
GH.mainFPSmng->framerateDelay();
|
|
GH.mainFPSmng->framerateDelay();
|
|
GH.mainFPSmng->framerateDelay();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool CVideoPlayer::openAndPlayVideo(std::string name, int x, int y, SDL_Surface *dst, bool stopOnKey, bool scale/* = false*/)
|
|
{
|
|
open(name, false, true, scale);
|
|
bool ret = playVideo(x, y, dst, stopOnKey);
|
|
close();
|
|
return ret;
|
|
}
|
|
|
|
CVideoPlayer::~CVideoPlayer()
|
|
{
|
|
close();
|
|
}
|
|
|
|
#endif
|
|
|