Fix transcoding video isses.

leandromoreira / ffmpeg-libav-tutorial

FFmpeg libav tutorial - learn how media works from basic to transmuxing, transcoding and more. Translations: 🇺🇸 🇨🇳 🇰🇷 🇪🇸 🇻🇳 🇧🇷

https://github.com/leandromoreira/ffmpeg-libav-tutorial

BSD 3-Clause "New" or "Revised" License

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Fix transcoding video isses. #42

Closed Shachlan closed 5 years ago

Shachlan commented 5 years ago

This PR fixes the issue that the clip plays at an excessively slow pace, due to erroneous time scaling. Additionally audio wasn't passed correctly, due to the encoder being created before the audio stream.