greglo.blogg.se - Xamarin android ffmpeg

VideoWatermark: apply watermark to the video (PNG image or just a text).

CutCropResize: code snippets to cut/crop/resize videos.

Concat: merge several videos into one resulting file (with complex filter and 'concat' demuxer).

NET library: all you need is one assembly (FFMpeg is embedded into DLL and extracted on first use)

can resize/crop/cut/split/merge video files, combine video and audio from different files, transcode live video stream from C# Stream input (Webcam, RTSP URL, file) to C# Stream output (streaming server URL, file).

all ffmpeg command-line options are supported.

no memory leaks: ffmpeg is executed in separate process.

(mp4,mp3,h264,wmv,wav,avi,flv,mov,mkv,webm,ogg and many others) NET wrapper: convert (encode,decode) almost all known video and audio formats Throw new NotImplementedException("ConvertMediaExtractorSampleFlagsToMediaCodecBufferFlags") Īs far as I can tell is, it takes every frame of the video at the point of the first cut and put every following frame into a buffer until the point of the end cut. Private MediaCodecBufferFlags ConvertMediaExtractorSampleFlagsToMediaCodecBufferFlags(MediaExtractorSampleFlags mediaExtractorSampleFlag)Ĭase MediaExtractorSampleFlags.Encrypted: Private string GetOutputPath(string inputPath) then adding the "_trimmed" string between both

Splits the string at the dot, separating the file name and the extension. Swallow the exception due to malformed source.Ĭonsole.WriteLine("The source video file is malformed") Muxer.WriteSampleData(indexDict, dstBuf, bufferInfo) If (bufferInfo.Size 0 & bufferInfo.PresentationTimeUs > (endMs * 1000))Ĭonsole.WriteLine("The current sample is over the trim end time.") īufferInfo.Flags = ConvertMediaExtractorSampleFlagsToMediaCodecBufferFlags(extractor.SampleFlags) MediaCodec.BufferInfo bufferInfo = new MediaCodec.BufferInfo() īufferInfo.Size = extractor.ReadSampleData(dstBuf, offset) file or exceed the end time of the trimming.īyteBuffer dstBuf = ByteBuffer.Allocate(bufferSize) for copying each sample and stop when we get to the end of the source Copy the samples from MediaExtractor to MediaMuxer. Set up the tracks and retrieve the max buffer size for selectedĭictionary indexDict = new Dictionary(trackCount) įor (int i = 0 i bufferSize ? newSize : bufferSize Įxtractor.SeekTo(startMs * 1000, MediaExtractorSeekTo.ClosestSync) Muxer = new MediaMuxer(outputPath, MuxerOutputType.Mpeg4) String outputPath = GetOutputPath(inputPath) Set up MediaMuxer for the destination. MediaExtractor extractor = new MediaExtractor()

Set up MediaExtractor to read from the source. I translated it to C# and so far it works flawlessly: public string Trim(int startMs, int endMs, string inputPath)

I did indeed find an android java example on stackoverflow.