mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-11-10 04:57:26 +01:00
99 lines
2.3 KiB
Go
99 lines
2.3 KiB
Go
// Copyright 2024 The Ebitengine Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package main
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import (
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"bytes"
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_ "embed"
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"fmt"
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"io"
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"log"
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"os"
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"github.com/hajimehoshi/ebiten/v2"
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"github.com/hajimehoshi/ebiten/v2/audio"
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"github.com/hajimehoshi/ebiten/v2/ebitenutil"
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)
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//go:embed shibuya.mpg
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var shibuya_mpg []byte
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type Game struct {
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player *mpegPlayer
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err error
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}
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func (g *Game) Update() error {
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if g.err != nil {
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return g.err
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}
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return nil
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}
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func (g *Game) Draw(screen *ebiten.Image) {
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if g.err != nil {
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return
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}
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if err := g.player.Draw(screen); err != nil {
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g.err = err
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}
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ebitenutil.DebugPrint(screen, fmt.Sprintf("FPS: %0.2f", ebiten.ActualFPS()))
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}
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func (g *Game) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
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return outsideWidth, outsideHeight
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}
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func main() {
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// Initialize audio context.
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_ = audio.NewContext(48000)
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// If you want to play your own video, the video must be an MPEG-1 video with 48000 audio sample rate.
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// You can convert the video to MPEG-1 with the below command:
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//
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// ffmpeg -i YOUR_VIDEO -c:v mpeg1video -q:v 8 -c:a mp2 -format mpeg -ar 48000 output.mpg
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//
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// You can adjust quality by changing -q:v value. A lower value indicates better quality.
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var in io.ReadSeeker
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if len(os.Args) > 1 {
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f, err := os.Open(os.Args[1])
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if err != nil {
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log.Fatal(err)
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}
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defer func() {
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_ = f.Close()
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}()
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in = f
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} else {
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in = bytes.NewReader(shibuya_mpg)
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fmt.Println("Play the default video. You can specify a video file as an argument.")
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}
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player, err := newMPEGPlayer(in)
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if err != nil {
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log.Fatal(err)
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}
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g := &Game{
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player: player,
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}
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player.Play()
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ebiten.SetWindowTitle("Video (Ebitengine Demo)")
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ebiten.SetWindowResizingMode(ebiten.WindowResizingModeEnabled)
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if err := ebiten.RunGame(g); err != nil {
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log.Fatal(err)
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}
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}
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