user6904: It's possible to produce mp4/webm videos without sound that loop seamlessly, but if you add sound to the video with matching length it adds a noticeable stutter at the end, even if the audio is slightly shorter than the video.
Is it possible to produce a web friendly (mp4/webm) video with sound that is gapless?
I use Adobe products and ffmpeg to produce my videos, if that matters.

user3908: This can happen if the GOP structure is unclosed at the end of the video. If you can assure that your video ends with an I frame, and that the audio is exactly the same length as the video, you stand a much better chance of getting a smooth recycle. Sorry, I don't know how to force that using ffmpeg.

6904: <p>It's possible to produce mp4/webm videos without sound that loop seamlessly, but if you add sound to the video with matching length it adds a noticeable stutter at the end, even if the audio is slightly shorter than the video.</p>

<p>Is it possible to produce a web friendly (mp4/webm) video with sound that is gapless?</p>

<p>I use Adobe products and ffmpeg to produce my videos, if that matters.</p>
 3908: <p>This can happen if the GOP structure is unclosed at the end of the video. If you can assure that your video ends with an I frame, and that the audio is exactly the same length as the video, you stand a much better chance of getting a smooth recycle. Sorry, I don't know how to force that using ffmpeg.</p>
