FFmpeg is a free & open source program that allows the user to record, convert and stream audio and video. It is one of the best software out there that can do all media-related processes with relative ease. The
最近需要把一批视频转换成mp3格式,方便放到mp3播放器上播放。 继续使用ffmpeg来实现: import subprocess def convert_video_to_audio(video_file_path, audio_file_path): command = f'ffmpeg -i "{video_file_path}" -vn -ar 44100 -ac 2 -b:a 192k "{audio_file_path}"' subprocess.call(command) vn...
两个命令 ( video2.avi 是中间文件 ,用完可删) ffmpeg -i video.avi -vcodec copy -an video2.avi ffmpeg -i video2.avi -i audio.mp3 -vcodec copy -acodec copy output.avi -i 表示输入文件 -vcodec copy 表示 force video codec ('copy' to copy stream) 这个不知怎么译 ,估计是直接copy -aco...
从多媒体文件中抽取媒体信息 * */ int main(int argc, char *argv[]) { const std::string src_video="D:\\BaiduNetdiskDownload\\165.mp4"; const std::string dst_audio="D:\\BaiduNetdiskDownload\\165.mp3"; AUDIO_OP_ERRORS err = AUDIO_OP_ERRORS::NO_ERROR; extract_audio(src_video, dst_...
用ffmpeg 提取MP3 格式转换 (将file.avi 转换成output.flv) ffmpeg -i file.avi output.flv -i 表示输入文件 :现在有个视频video.avi,有个音频 audio.mp3,将其合并成output.avi 两个命令 ( video2.avi 是中间文件 ,用完可删) ffmpeg -i video.avi -vcodec copy -an video2.avi ffmpeg -i video2....
ofmtCtxVideo) { printf("can't create video output context"); break; } 打开输出上下文 int open_codec_context(int *streamIndex, AVFormatContext *&ofmtCtx, AVFormatContext *ifmtCtx, AVMediaType type) { AVStream *outStream = NULL, *inStream = NULL; int ret = -1, index = -1; index...
int64_t cur_pts_v =0, cur_pts_a =0;constchar* out_filename ="shuchu.mp4";//输出文件constchar* audio_filename ="audio.mp3";//输出文件constchar* video_filename ="video.h264";//输出文件AVPacket* pkt; int ret, i; pvFormatCtx =avformat_alloc_context(); ...
conda create-n video2text python=3.11conda activate video2text 安装transformers库: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 pip install transformers-i https://mirrors.cloud.tencent.com/pypi/simple 基于transformers的pipeline会自动进行模型下载,当然,如果您的网速不行,请替换HF_ENDPOINT为国内镜像...
ffmpegfs#/mnt/music /mnt/ffmpegfs fuse allow_other,ro,audiobitrate=256K,videobitrate=2000000,desttype=mp4 0 0 Another (more current) way to express this command:/mnt/music /mnt/ffmpegfs fuse.ffmpegfs allow_other,ro,audiobitrate=256K,videobitrate=2000000,desttype=mp4 0 0 ...
FFmpeg -i source_video.avi -vn -ar 44100 -ac 2 -ab 192 -f mp3 sound.mp3 Convert video to image sequences using FFmpeg FFmpeg -i video.mpg image%d.jpg Convert video to animated gif(uncompressed) using FFmpeg FFmpeg -i source_video.avi gif_animated.gif ...