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.
Related
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
When I used python audio segment to open a .wav file and divide it into many .wav files i am getting this error
"C:\Python27\lib\site-packages\pydub\utils.py:165: RuntimeWarning: Couldn't find
ffmpeg or avconv - defaulting to ffmpeg, but may not work
warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work"
, RuntimeWarning)"
It seems like you don't have ffmpeg, which is listed in the dependencies section of the Pydub GitHub. However, it is only required if you wish to load or save non-WAV files.
This message is just a warning, if you're using Pydub solely for WAV files, it is safe to simply ignore it.
I'm building an application in C++ that should use FFmpeg to send a live stream to Flash Media Server. For starters I would like to be able to send a .mp4 file. Using the FFmpeg .exe I can do it like this:
ffmpeg -re -i TEST.mp4 -vcodec libx264 -f flv rtmp://[host]/[application]/[stream]
How would you go about implementing something like that in code? I can only figure out how to read data, not write it. I have found functions to open input but nothing about how to connect to FMS. All write functions I can find seems to be how to write to file. Please advice.
I'm currently working on converting h.264 elementary stream (file with postfiix .264) to transport stream (file with postfix .ts). I have finished the conversion successfully using ffmpeg command line "ffmpeg -i in.264 -an -vcodec copy -f mpegts out.ts".
Now I want to implement this conversion using my own C++ code, by calling ffmpeg's libraries. I have downloaded precompiled ffmpeg libraries (libavcodec, libavformat etc). My input h.264 is prerecorded file, not live stream, and so as my output .ts file. So my question is which functions in the library should I call to implement the conversion?
You will see an example file named ffmpeg.c after you install ffmpeg in Linux. There are many options to set the decoding parameters in this file e.g. opt_audio_codec, opt_video_codec, opt_audio_rate, opt_video_rate, opt_default etc. Just set the necessary parameters from your command(-i in.264 -an -vcodec copy -f mpegts out.ts) using appropriate functions before calling "transcode" or "av_encode" function from "main" function of ffmpeg.c file.
It's not as simple as list the library calls. Here is an old tutorial that will help you get started reading the input file. There is also an example called decoding_encoding.c that is included with the ffmpeg source. These should help you get started.
You don't need to do it in your own code. You can just spawn the ffmpeg process programatically instead. Use CreateProcess on Windows, or spawn on Linux.
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