ffmpeg encoder from raw/memory/stdin input video/audio stream

Question

In my sequencer I use media foundation to encode audio and video, but I also want to use ffmpeg to support more formats.

The ideal scenario is to use ffmpeg.exe with input of a raw WidthxHeight RGB or YUV stream and with raw pcm stream.

Perhaps in three steps. For example, a) encode video b) encode audio c) mux in an mp4. So my app can send data to ffmpeg stdin and get the stdout.

Is there a quick ffmpeg syntax way to do that? If not, I would have to use programmatically ffmpeg libraries.

Answer 1

Use the rawvideo demuxer and the appropriate PCM demuxer (see ffmpeg -demuxers).

ffmpeg -y -f rawvideo -video_size 320x240 -framerate 25 -pixel_format yuv420p -i - -f s16le -sample_rate 44100 -channels 2 -i audio.pcm -shortest output.mp4