how to add text information to avi by using directshow

0
votes

thanks to click my question.

To make mux stream avi video, I had using directshow avimux filter. But, directshow avimux filter is only use to media/img files. How can I add text information to avi file and meet the stream mux(audio+video+text) condition?

1
c++ffmpegdirectshow

1 Answers

0
votes

AVI Mux Filter is built on top of AVI API and is limited to support video, audio and DV interleaved streams. Hence, no text option.

Input Pin Media Types Any major type that corresponds to an old-style FOURCC, or MEDIATYPE_AUXLine21Data. (For more information, see FOURCCMap Class.)

  • If the major type is MEDIATYPE_Audio, the format must be FORMAT_WaveFormatEx.
  • If the major type is MEDIATYPE_Video, the format must be FORMAT_VideoInfo or FORMAT_DvInfo.
  • If the major type is MEDIATYPE_Interleaved, the format must be FORMAT_DvInfo.

To embed text as an additional stream, you need to write a custom filter (on top of either Windows AVI API, or FFmpeg or other) or find an appropriate third party replacement for stock AVI multiplexer.