ES-DE/es-core/src/components/VideoPlayerComponent.cpp
2020-07-27 20:38:22 +02:00

254 lines
9.2 KiB
C++

//
// VideoPlayerComponent.cpp
//
// OMXPlayer video playing for Raspberry Pi.
//
#ifdef _RPI_
#include "components/VideoPlayerComponent.h"
#include "renderers/Renderer.h"
#include "utils/StringUtil.h"
#include "AudioManager.h"
#include "Settings.h"
#include <fcntl.h>
#include <unistd.h>
#include <wait.h>
class VolumeControl
{
public:
static std::shared_ptr<VolumeControl> & getInstance();
int getVolume() const;
};
VideoPlayerComponent::VideoPlayerComponent(Window* window, std::string path) :
VideoComponent(window),
mPlayerPid(-1),
subtitlePath(path)
{
}
VideoPlayerComponent::~VideoPlayerComponent()
{
stopVideo();
}
void VideoPlayerComponent::render(const Transform4x4f& parentTrans)
{
if (!isVisible())
return;
VideoComponent::render(parentTrans);
if (!mIsPlaying || mPlayerPid == -1)
VideoComponent::renderSnapshot(parentTrans);
}
void VideoPlayerComponent::setResize(float width, float height)
{
setSize(width, height);
mTargetSize = Vector2f(width, height);
mTargetIsMax = false;
mStaticImage.setResize(width, height);
onSizeChanged();
}
void VideoPlayerComponent::setMaxSize(float width, float height)
{
setSize(width, height);
mTargetSize = Vector2f(width, height);
mTargetIsMax = true;
mStaticImage.setMaxSize(width, height);
onSizeChanged();
}
void VideoPlayerComponent::startVideo()
{
if (!mIsPlaying) {
mVideoWidth = 0;
mVideoHeight = 0;
std::string path(mVideoPath.c_str());
// Make sure we have a video path.
if ((path.size() > 0) && (mPlayerPid == -1)) {
// Set the video that we are going to be playing so we don't attempt to restart it.
mPlayingVideoPath = mVideoPath;
// Disable AudioManager so video can play, in case we're requesting ALSA.
if (Utils::String::startsWith(Settings::getInstance()->
getString("OMXAudioDev").c_str(), "alsa"))
AudioManager::getInstance()->deinit();
// Start the player process.
pid_t pid = fork();
if (pid == -1) {
// Failed.
mPlayingVideoPath = "";
}
else if (pid > 0) {
mPlayerPid = pid;
// Update the playing state.
signal(SIGCHLD, catch_child);
mIsPlaying = true;
mFadeIn = 0.0f;
}
else {
// Find out the pixel position of the video view and build a command line for
// OMXPlayer to position it in the right place.
char buf1[32];
char buf2[32];
float x = mPosition.x() - (mOrigin.x() * mSize.x());
float y = mPosition.y() - (mOrigin.y() * mSize.y());
// Fix x and y.
switch (Renderer::getScreenRotate()) {
case 0: {
const int x1 = (int)(Renderer::getScreenOffsetX() + x);
const int y1 = (int)(Renderer::getScreenOffsetY() + y);
const int x2 = (int)(x1 + mSize.x());
const int y2 = (int)(y1 + mSize.y());
sprintf(buf1, "%d,%d,%d,%d", x1, y1, x2, y2);
}
break;
case 1: {
const int x1 = (int)(Renderer::getWindowWidth() -
Renderer::getScreenOffsetY() - y - mSize.y());
const int y1 = (int)(Renderer::getScreenOffsetX() + x);
const int x2 = (int)(x1 + mSize.y());
const int y2 = (int)(y1 + mSize.x());
sprintf(buf1, "%d,%d,%d,%d", x1, y1, x2, y2);
}
break;
case 2: {
const int x1 = (int)(Renderer::getWindowWidth() -
Renderer::getScreenOffsetX() - x - mSize.x());
const int y1 = (int)(Renderer::getWindowHeight() -
Renderer::getScreenOffsetY() - y - mSize.y());
const int x2 = (int)(x1 + mSize.x());
const int y2 = (int)(y1 + mSize.y());
sprintf(buf1, "%d,%d,%d,%d", x1, y1, x2, y2);
}
break;
case 3: {
const int x1 = (int)(Renderer::getScreenOffsetY() + y);
const int y1 = (int)(Renderer::getWindowHeight() -
Renderer::getScreenOffsetX() - x - mSize.x());
const int x2 = (int)(x1 + mSize.y());
const int y2 = (int)(y1 + mSize.x());
sprintf(buf1, "%d,%d,%d,%d", x1, y1, x2, y2);
}
break;
}
// Rotate the video.
switch (Renderer::getScreenRotate()) {
case 0: { sprintf(buf2, "%d", (int) 0); } break;
case 1: { sprintf(buf2, "%d", (int) 90); } break;
case 2: { sprintf(buf2, "%d", (int)180); } break;
case 3: { sprintf(buf2, "%d", (int)270); } break;
}
// We need to specify the layer of 10000 or above to ensure the video is
// displayed on top of our SDL display.
const char* argv[] = { "", "--layer", "10010", "--loop", "--no-osd",
"--aspect-mode", "letterbox", "--vol", "0", "-o", "both",
"--win", buf1, "--orientation", buf2, "", "", "", "", "", "",
"", "", "", "", "", NULL };
// Check if we want to mute the audio.
if ((!Settings::getInstance()->getBool("VideoAudio") ||
(float)VolumeControl::getInstance()->getVolume() == 0) ||
(Settings::getInstance()->getBool("ScreenSaverVideoMute") &&
mScreensaverMode)) {
argv[8] = "-1000000";
}
else {
float percentVolume = (float)VolumeControl::getInstance()->getVolume();
int OMXVolume = (int)((percentVolume-98)*105);
argv[8] = std::to_string(OMXVolume).c_str();
}
// Test if there's a path for possible subtitles, meaning we're a screensaver video.
if (!subtitlePath.empty()) {
// If we are rendering a screensaver.
// Check if we want to stretch the image.
if (Settings::getInstance()->getBool("ScreenSaverStretchVideos"))
argv[6] = "stretch";
if (Settings::getInstance()->getString("ScreenSaverGameInfo") != "never") {
// If we have chosen to render subtitles.
argv[15] = "--subtitles";
argv[16] = subtitlePath.c_str();
argv[17] = mPlayingVideoPath.c_str();
argv[18] = "--font";
argv[19] = Settings::getInstance()->getString("SubtitleFont").c_str();
argv[20] = "--italic-font";
argv[21] = Settings::getInstance()->
getString("SubtitleItalicFont").c_str();
argv[22] = "--font-size";
argv[23] = std::to_string(Settings::getInstance()->
getInt("SubtitleSize")).c_str();
argv[24] = "--align";
argv[25] = Settings::getInstance()->
getString("SubtitleAlignment").c_str();
}
else {
// If we have chosen NOT to render subtitles in the screensaver.
argv[15] = mPlayingVideoPath.c_str();
}
}
else {
// If we are rendering a video gamelist.
if (!mTargetIsMax)
argv[6] = "stretch";
argv[15] = mPlayingVideoPath.c_str();
}
argv[10] = Settings::getInstance()->getString("OMXAudioDev").c_str();
//const char* argv[] = args;
const char* env[] = { "LD_LIBRARY_PATH=/opt/vc/libs:/usr/lib/omxplayer", NULL };
// Redirect stdout.
int fdin = open("/dev/null", O_RDONLY);
int fdout = open("/dev/null", O_WRONLY);
dup2(fdin, 0);
dup2(fdout, 1);
// Run the OMXPlayer binary.
execve("/usr/bin/omxplayer.bin", (char**)argv, (char**)env);
_exit(EXIT_FAILURE);
}
}
}
}
void catch_child(int sig_num)
{
// When we get here, we know there's a zombie child waiting.
int child_status;
wait(&child_status);
}
void VideoPlayerComponent::stopVideo()
{
mIsPlaying = false;
mStartDelayed = false;
// Stop the player process.
if (mPlayerPid != -1) {
int status;
kill(mPlayerPid, SIGKILL);
waitpid(mPlayerPid, &status, WNOHANG);
mPlayerPid = -1;
}
}
#endif