FFmpegis a complete, cross-platform solution to record, convert and stream audio and video. This is my FFmpeg learning notes. Using ffmpeg as video editor and converter. Change the fps and convert.mp4file to.gifand other formats. Overview FFmpeg is short for "Fast Forward Moving Pictures Expe...
我使用的是ffmpeg-python库。我使用了示例代码https://github.com/kkroening/ffmpeg-python/tree/master/examples来异步读入和处理音频和视频流。目前,我能看到的唯一方法是将两个流写出到单独的文件中(例如在这个答案中:How to combine The video and audio files i ...
null) < 0) { throw new InvalidOperationException("Could not find stream info"); } // 寻找音频流和视频流 int audioStreamIndex = -1; int videoStreamIndex = -1; for (int i = 0; i < inputFormatContext->nb_streams; i++) {
go2rtc: streams: frontdoor-audio: - "ffmpeg:http://192.168.0.30/flv?port=1935&app=bcs&stream=channel0_main.bcs&user=admin&password=secretpassword#video=copy#audio=copy#audio=opus#raw= -avoid_negative_ts make_zero -fflags +genpts+discardcorrupt -flags low_delay -strict experimental -analyzedu...
Unofficial FFmpeg with added custom native Visual Studio project build tools. FFmpeg: A complete, cross-platform solution to record, convert and stream audio and video. - FFmpeg/libavcodec/mpegvideo.h at 69f34e5b1f54b2200c4cb040f8bdc6855dda8597 · wwwxxx
try (BufferedReader br = new BufferedReader(new InputStreamReader(ffmpeg.getErrorStream())) { blockFfmpeg(br); } log.info("添加字幕成功={}", videoPath); } catch (IOException e) { throw new CombineException(ResultCode.ERROR.getCode(), "添加字幕失败", taskId); }...
(mediatype == AVMEDIA_TYPE_VIDEO || mediatype == AVMEDIA_TYPE_AUDIO) { frame[i] = av_frame_alloc(); if (!(frame[i])) { ret = AVERROR(ENOMEM); goto end; } av_packet_rescale_ts(&packet, ifmt_ctx[i]->streams[stream_index]->time_base, ifmt_ctx[i]->streams[stream_index]-...
vcodec.Open(fc.VideoCodec); vstream.Codecpar!.CopyFrom(vcodec); vstream.TimeBase = vcodec.TimeBase;stringoutputPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop),"muxing.mp4"); fc.DumpFormat(streamIndex:0, outputPath, isOutput:true);usingIOContext io = IOContext.Ope...
In the example, the split filter generates two outputs that are associated to the labels [main] and [tmp]. The stream sent to the second output of split, labelled as [tmp], is processed through the crop filter, which crops away the lower half part of the video, and then vertically ...
Lossless stream editing Combine arbitrary tracks from multiple files (ex. add music or subtitle track to a video file) Remove unneeded tracks Replace or re-encode only some tracks Extract all tracks from a file (extract video, audio, subtitle, attachments and other tracks from one file into se...