I wonder if anyone can help,
We have an unbranded DVR player, which outputs files by default as native:
.rmi – containing the video metadata
.rms – containing the video stream itself
.rai – containing the audio metadata
.ras – containing the audio stream itself
We need to convert these files to a common file format without using the software on the DVR, as we find that using this, the video is much lower quality, and audio is out of sync.
We have managed to convert the video file using ffmpeg and numerous commands, but are struggling with the audio. From our investigation it appears the audio is:
G.723, 8Khz, 16 bit, mono, 125kbps
We have tried a number of combinations of libraries including FFMpeg, Sox and G72x+ Decoder, but none have been able to decode the audio to play it as an MP3.
Does anyone have any advice on how we can do this so that we can write a simple script to automate the conversion? I would be very grateful for any assistance, advice or ideas.
Thank you very much for your time.