![]() ![]() (I need it because of Dissolve() function in AviSynth source file produces horrible sound for CBR, whereas it's nice for Any Video Converter's VBR audio output. Does ffmpeg fail putting AC3 into the MP4 container I know, initially MP4 did not support AC3 streams, but over a year ago they officially allowed AC3 to be enclosed in an MP4 (see ). The Any Video Converter (the old version 3.5.8), which internally uses FFmpeg, convert the same input into VBR mode: Audio FFmpeg list all codecs, encoders, decoders and formats A codec is the logic to encoding or decoding a media stream, there are many different types with popular ones being H.264, HEVC ( H.265) and MPEG-4. ![]() ![]() I tried encoding audio stream into AAC with a variable bitrate mode - I followed the advice from FFmpeg VBR Settings and changed my original option -b:a 128k to -q:a 1.3 in this original command ffmpeg -channel_layout stereo -i sc2.avs -b:a 128k -ar 24000 -ac 2 sc2.mp4īut I still obtained a constant audio bitrate.įormat/Info : Advanced Audio Codec Low Complexity Conversion from mp3 to aac/mp4 container (FFmpeg/c++) Ask Question 4 I have made a small application to extract audio from an mp4 file, or simply convert an existing audio file to AAC/mp4 format (both raw AAC, or inside mp4 container). AWS Elemental MediaLive supports RTP (MPEG TS) ingest with H. ![]()
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