MP4 & QuickTime Writer

DirectShow filter for multiplexing and writing .mp4 and .mov files.


MPEG-4 Writer is a DirectShow filter for multiplexing and writing .mp4 and .mov files. It multiplexes the input streams and writes them to MPEG-4/MOV files.

The filter performs the function of both the multiplexer and the file writer and must be the last filter in the graph.


  • Support for video streams compressed in major formats (MPEG-2, H264 and HEVC) using QuickSync Encoder
  • Adjustable interleaving time for input streams
  • Selecting the mode of writing timecodes (only after breaks or all time codes)
  • Selecting the drop/non-drop mode to process 29.97 and 59.94 timecodes.
  • Selecting the mode for writing separate .mdat and metadata files. These files can be merged into one correct MPEG-4 file using "copy /b a.mp4+a.mp4.mdat b.mp4".
  • Allows the shared access to the current writing file. This is a special feature for cutting and writing the selected part of the current file to another file "on fly".
Specifications and description of user interfaces can be found in the .idl file in the \Idl folder of the filter installation directory.

Supported Types of streams

  • 'avc1': H.264/AVC stream in accordance with ITU-T Rec. H.264 / ISO/IEC 14496-10 and ISO/IEC 14496-12, 14, 15
  • 'hvc1': H265/HEVC stream according to ITU-T H.265
  • 'mp4v' - MPEG-2 video stream according to ITU-T H.262 / ISO/IEC 13818-2
  • 'dv': streams in different DV formats DVSD, DV25, DV50, DV100 (720 and 1080) in accordance with SMPTE 314M-2005, SMPTE 370M-2006, IEC 61834.
  • 'jpeg': streams in M-JPEG format in accordance with SMPTE 314M-2005, SMPTE 370M-2006, IEC 61834
  • 'mp4a': AAC Audio streams in accordance with ISO/IEC 14496-3.
  • 'sowt': PCM Audio up to 64 channels, 16 bits per mono channel, little endian.
  • 'tmcd': Timecode stream from 'tmcd' track with TIMECODE_SAMPLE DirectShow samples.

Supported MPEG-4 Standards

  • ISO/IEC 14496-1, Systems
  • ISO/IEC 14496-12, ISO base media file format
  • ISO/IEC 14496-14, MP4 file format
  • ISO/IEC 14496-15, Carriage of network abstraction layer (NAL) unit ...

See Also

You Might Also Need

  • QuickSync Encoder - DirectShow filter for encoding 8-bit 4:2:0 progressive or interlaced video frames in HEVC, H264 or MPEG-2 formats.
  • M-JPEG Video Encoder DirectShow Filter - High-quality M-JPEG video encoder DirectShow filter with ARGB32 (alpha channel) support.
  • DVCPRO HD Encoder - A high-performance DVCPRO video encoder.
  • AAC Encoder - A high-performance AAC audio encoder.
  • DV Splitter - DirectShow filter for splitting a digital video (DV) stream into its component video and audio streams. Supports DV25, DV50 and DV100.

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Action Items


Single Application License1100 EUR

Single Developer License1900 EUR

Team License2700 EUR