I finished rendering an animation with audio into the default H.264 lossy settings. I then realized the audio was 1 frame off and I also altered the song that I used in the video. So my two questions are:
Is it possible to re encode the video with lossy compression after shifting the frames back, but have blender automatically use the same keyframes and what not, so that more quality is not lost?
If one is not possible, if I don't shift the frames and leave the video portion the exact same, but change the audio, is it possible to not lose quality by using the same lossy H.264 settings?
–I know I could render it with "Lossless" Checked, but I still want compression for the small file size –Often I render it into an image sequence first since it is a good practice. I still would like to know this information in the case that I delete the raw images like in this case