# audio duration def make_duration(file_path): result = sp.run(["ffprobe", "-v", "error", "-show_entries", "format=duration", "-of", "default=noprint_wrappers=1:nokey=1", file_path], stdout=sp.PIPE, stderr=sp.STDOUT) return float(result.stdout) # cut video and audio cmd_sp...
public static String[] cutAudio(String srcFile, int startTime, int duration, String targetFile){ String cutAudioCmd = "ffmpeg -i%s -ss %d -t %d %s"; cutAudioCmd = String.format(cutAudioCmd, srcFile, startTime, duration, targetFile); return cutAudioCmd.split(" ");//以空格分割为字符...
av_packet_rescale_ts(pkt, in_fmtctx->streams[video_in_stream_index]->time_base, ou_fmtctx->streams[video_ou_tream_index]->time_base); } } else { // 进行时间戳的转换 av_packet_rescale_ts(pkt, in_fmtctx->streams[audio_in_stream_index]->time_base, ou_fmtctx->streams[audio_ou_s...
public List<String> cutFile(String media_path, String ffmpeg_path) { List<String> audios = new ArrayList<>(); int mediaTime = getMediaTime(media_path, ffmpeg_path); int num = mediaTime / 59; int lastNum = mediaTime % 59; System.out.println(mediaTime +"|" + num + "|"+ last...
ffmpeg -i test.mp3 -ss 00:01:30 -to 00:02:30 -c copy test_cut.mp3 -c copy 表示不改变音频和视频的编码格式,直接拷贝,提升效率 8、添加音频效果 将对输入文件 test_cut.mp3 应用音频效果,包括加速 2 倍(atempo)、高通滤波器(highpass)和低通滤波器(lowpass),并保存为 test_cut_ahl.mp3: ffmpe...
ffmpeg -ss 5 -t 5 -i ../video/IMG_0886.MOV -c copy ../video/IMG_0886_cut.MOV 1. 2. 二、调用FFmpeg SDK对YUV视频序列进行编码 视频由像素格式编码为码流格式是FFMpeg的一项基本功能。通常,视频编码器的输入视频通常为原始的图像像素值,输出格式为符合某种格式规定的二进制码流。
finallongstartTime=System.currentTimeMillis();FFmpegCommand.runAsync(FFmpegUtils.cutAudio(input,"00:00:30","00:00:40",output),newCommonCallBack() {@OverridepublicvoidonComplete() {Log.d("FFmpegTest","run: 耗时:"+ (System.currentTimeMillis() -startTime));@OverridepublicvoidonCancel() {Log...
Stream video start time: 1.004Stream audio start time: 0.0Earliest video packet pts time: 1.004Earliest audio packet pts time: -1.010667 这就是万恶之源,上文提到的那种有负 PTS + discarded packets 的视频。DTS倒是单调增。 对于负 PTS 的问题,可以通过增加 -avoid_negative_ts make_zero 参数来解决...
final long startTime = System.currentTimeMillis(); FFmpegCommand.runAsync(FFmpegUtils.cutAudio(input, "00:00:30", "00:00:40", output), new CommonCallBack() { @Override public void onComplete() { Log.d("FFmpegTest", "run: 耗时:" + (System.currentTimeMillis() - startTime)); @...
将对输入文件 test_cut.mp3 应用音频效果,包括加速 2 倍(atempo)、高通滤波器(highpass)和低通滤波器(lowpass),并保存为 test_cut_ahl.mp3: ffmpeg -i test_cut.mp3 -af "atempo=2.0, highpass=f=200, lowpass=f=3000" test_cut_ahl.mp3 1登录后即可复制 9、添加封面 ffmpeg -i test.mp3 -i ...