I copied the latest docs/example muxing.c and decoding_enconding.c and modified it to my needs. I am able to save a movie with synced sound if I use audio codec pcm_s16le and convert the float values into s16 values using swresample. However, when I want to save ac3 to keep the data in float (fltp), the video gets created fine, but the audio comes out of sync. My guess is that I am not using proper pts/dts values.
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