converting opus media file to webm format - mp3

I am trying to get the encryption media API to work for my opus audio file, but i cant seem to figure out how to convert my opus audio file to webm file format

Related

Live555 "testWAVAudioStreamer" stream raw pcm a-law audio (no file header)

I want to stream raw pcm a-law audio file with live555 libary.
The file doesn't contains header like wav file has.
I tried to stream it using testWAVAudioStreamer.cpp but it didn't work. (error of unsupported file).
I can play the audio file using ffplay like that:
ffplay -f alaw -ar 8k audio_file
How can i stream this file using testWAVAudioStreamer?

TIMIT Corpus. Cant play .WAV audiofile but can play it if I convert it into .mp3

I downloaded the files from the timit speech corpus found here: https://github.com/philipperemy/timit
When I try playing the .WAV files with groove music or windows media player I get an error saying the file cannot be played.
However after converting the file to mp3 using an online converter, the file suddenly works.
The .WAV files are only around 100-200KB in size.
Does anyone know what the reason for this problem might be?
Found the answer here: reading a WAV file from TIMIT database in python
Apparently it is not actually a .WAV file but a NIST file.

How to record rstp source using ffmpeg in own way

Is it possible to write videoframes from rtsp source in a own file format desigend as a ring buffer using ffmpeg lib?

How to convert .264 file to avi\wav using python

Am trying to convert .264 files to mp4 or avi or wav format.
I have tried ffmpeg but no luck.
I am using python 2.7 on windows 7.
Please help!!
If you have a .264 file I would suggest to wrap it in a mp4 container (no re-encode required that way).
Try the following:
ffmpeg -i INPUT.h264 -c:v copy OUTPUT.mp4
Moreover, .264 contains video only so there's no way you're gonna convert it to WAV which contains audio only.

how to convert WAV format to FLAC using libFLAC++

how to convert WAV format to FLAC using libFLAC++
(encode.h and decode.h)
There's a nice C++ example in the libflac source tarball.
It's also possible to browse it online (single cpp file).
Decode
Encode