DinoGame/pyvidplayer.py at main · Tankolom-X/DinoGame · GitHub

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import pygame
import os
from ffpyplayer.player import MediaPlayer
from ffpyplayer.tools import set_loglevel
from pymediainfo import MediaInfo
from errno import ENOENT


class Video:
    def __init__(self, path):
        if not os.path.exists(path):
            raise FileNotFoundError(ENOENT, os.strerror(ENOENT), path)
        set_loglevel("quiet")

        self.path = path
        self.name = os.path.splitext(os.path.basename(path))[0]

        self._video = MediaPlayer(path)
        self._frame_num = 0

        info = MediaInfo.parse(path).video_tracks[0]

        self.frame_rate = float(info.frame_rate)
        self.frame_count = int(info.frame_count)
        self.frame_delay = 1 / self.frame_rate
        self.duration = info.duration / 1000
        self.original_size = (info.width, info.height)
        self.current_size = self.original_size

        self.active = True
        self.frame_surf = pygame.Surface((0, 0))

        self.alt_resize = pygame.transform.smoothscale

    def close(self):
        self._video.close_player()

    def restart(self):
        self._video.seek(0, relative=False)
        self._frame_num = 0
        self.frame_surf = None
        self.active = True

    def set_size(self, size: tuple):
        self._video.set_size(*size)
        self.current_size = size

    # volume goes from 0.0 to 1.0
    def set_volume(self, volume: float):
        self._video.set_volume(volume)

    def get_volume(self) -> float:
        return self._video.get_volume()

    def get_paused(self) -> bool:
        return self._video.get_pause()

    def pause(self):
        self._video.set_pause(True)

    def resume(self):
        self._video.set_pause(False)

    # gets time in seconds
    def get_pos(self) -> float:
        return self._video.get_pts()

    def toggle_pause(self):
        self._video.toggle_pause()

    def _update(self):
        updated = False

        if self._frame_num + 1 == self.frame_count:
            self.active = False
            return False

        while self._video.get_pts() > self._frame_num * self.frame_delay:
            frame = self._video.get_frame()[0]
            self._frame_num += 1

            if frame != None:
                size =  frame[0].get_size()
                img = pygame.image.frombuffer(frame[0].to_bytearray()[0], size, "RGB")
                if size != self.current_size:
                    img = self.alt_resize(img, self.current_size)
                self.frame_surf = img

                updated = True

        return updated

    # seek uses seconds
    def seek(self, seek_time: int):
        vid_time = self._video.get_pts()
        if vid_time + seek_time < self.duration and self.active:
            self._video.seek(seek_time)
            while vid_time + seek_time < self._frame_num * self.frame_delay:
                self._frame_num -= 1

    def draw(self, surf: pygame.Surface, pos: tuple, force_draw: bool = True) -> bool:
        if self.active and (self._update() or force_draw):
            surf.blit(self.frame_surf, pos)
            return True

        return False