C语言播放视频

C语言本身没有直接播放视频或动图的功能，需要通过调用其他库或工具来实现。以下是使用SDL库播放视频和动图的示例代码： 播放视频： ```c #include <stdio.h> #include <SDL2/SDL.h> int main(int argc, char *argv[]) { if (SDL_Init(SDL_INIT_VIDEO) < 0) { printf("SDL_Init failed: %s\n", SDL_GetError()); return -1; } SDL_Window *window = SDL_CreateWindow("Video Player", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_OPENGL); if (!window) { printf("SDL_CreateWindow failed: %s\n", SDL_GetError()); SDL_Quit(); return -1; } SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, 0); if (!renderer) { printf("SDL_CreateRenderer failed: %s\n", SDL_GetError()); SDL_DestroyWindow(window); SDL_Quit(); return -1; } SDL_Surface *surface = SDL_LoadBMP("video.bmp"); if (!surface) { printf("SDL_LoadBMP failed: %s\n", SDL_GetError()); SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return -1; } SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surface); if (!texture) { printf("SDL_CreateTextureFromSurface failed: %s\n", SDL_GetError()); SDL_FreeSurface(surface); SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return -1; } SDL_FreeSurface(surface); SDL_Rect rect; rect.x = 0; rect.y = 0; rect.w = 640; rect.h = 480; SDL_Event event; int quit = 0; while (!quit) { while (SDL_PollEvent(&event)) { if (event.type == SDL_QUIT) { quit = 1; break; } } SDL_RenderClear(renderer); SDL_RenderCopy(renderer, texture, NULL, &rect); SDL_RenderPresent(renderer); } SDL_DestroyTexture(texture); SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return 0; } ``` 播放动图： ```c #include <stdio.h> #include <SDL2/SDL.h> int main(int argc, char *argv[]) { if (SDL_Init(SDL_INIT_VIDEO) < 0) { printf("SDL_Init failed: %s\n", SDL_GetError()); return -1; } SDL_Window *window = SDL_CreateWindow("GIF Player", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_OPENGL); if (!window) { printf("SDL_CreateWindow failed: %s\n", SDL_GetError()); SDL_Quit(); return -1; } SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, 0); if (!renderer) { printf("SDL_CreateRenderer failed: %s\n", SDL_GetError()); SDL_DestroyWindow(window); SDL_Quit(); return -1; } SDL_Surface *surface = SDL_LoadBMP("animation.bmp"); if (!surface) { printf("SDL_LoadBMP failed: %s\n", SDL_GetError()); SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return -1; } SDL_Rect rect; rect.x = 0; rect.y = 0; rect.w = 640; rect.h = 480; SDL_Event event; int quit = 0; int frame = 0; while (!quit) { while (SDL_PollEvent(&event)) { if (event.type == SDL_QUIT) { quit = 1; break; } } SDL_Rect clip; clip.x = (frame % 10) * 64; clip.y = (frame / 10) * 64; clip.w = 64; clip.h = 64; SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer, surface); if (!texture) { printf("SDL_CreateTextureFromSurface failed: %s\n", SDL_GetError()); SDL_FreeSurface(surface); SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return -1; } SDL_RenderClear(renderer); SDL_RenderCopy(renderer, texture, &clip, &rect); SDL_RenderPresent(renderer); SDL_DestroyTexture(texture); frame++; if (frame >= 64) { frame = 0; } SDL_Delay(100); } SDL_FreeSurface(surface); SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit(); return 0; } ``` 需要注意的是，这里的示例代码仅供参考，实际使用时需要根据具体情况进行修改和调整。