zmkv

Helper library for creating mkv files

Predefined A/V formats:

VP8,H264,OPUS,PCM,PCMA,PCMU,G729,SPEEX

Can be easily extended for any new format

How to use

1. Library located in namespace ZMKV:

   using namespace ZMKV;
   

2. Create file writer, you can use default or make custom writer class derived from: MuxerIOWriterCallback

   MuxerIOWriterCallbackDefault muxerIOWriterCallbackDefault("./test.mkv");
   

3. Create muxer:

   Muxer muxer(muxerIOWriterCallbackDefault);
   

4. Create tracks:

   AudioCodecInfoACM audioCodecInfoACM(8000, 16, 1, ZMKV::wFormatTag::PCM);
   AudioTrack audioTrack(muxer, audioCodecInfoACM, 0, 12345678);
   
   VideoCodecInfoH264 videoCodecInfoH264(320,240);
   videoCodecInfoH264.AddPPS(sps,sizeof(sps));
   videoCodecInfoH264.AddPPS(pps,sizeof(pps));
   
   VideoTrack videoTrack(muxer,videoCodecInfoH264,1,87654321);
   

5. Fill tracks:

...
audioTrack.AddFrame(audioTimeStamp, 0, audio_buf, sizeof(audio_buf));
videoTrack.AddFrame(videoTimeStamp, isKeyFrame, video_buf, sizeof(video_buf));
...

6. Thats all!

How to build on Ubuntu linux

apt-get update
apt-get install git cmake gcc g++

apt-get install libmatroska-dev

mkdir work_dir
cd work_dir
git clone https://github.com/voximplant/zmkv.git
mkdir build
cd build
cmake ../zmkv
make -j8