Category "transcoding"

c++, ffmpeg tanscoding: time_base differs depending on the container

I transcode video (mkv and mp4). When mkv transcoded to mkv, output is fine (output video fps and duration are same as input), but if mkv transcoded to mp4, out

Libav API: Filtering + Transconding

I need to process a list of several audio files (MP3 and WAV) and mix them to generate an audio stream (AAC codec / fltp) to be included into an mp4 file (using