I'm trying to get lossless conversion of 3gp to mp4 using ffmpeg.
ffmpeg -i input.3gp -vcodec h264 -c:a aac output.mp4
I tried with "libx264" for the video codec, I tried just a simple
ffmpeg -i input.3gp output.mp4
No matter what I try, for a 10 MB 3gp video I am getting a 5 MB mp4 video that doesn't seem to have the same quality.
Any suggestions are welcome.