Separate Streams for synchronized playback of two video files about bino HOT 5 CLOSED

Hi!
When opening multiple files from the finder on macOS, it generates one QFileOpenEvent per file (posted here from Qt and handled here in the Bino code).
As far as I know, it's not possible whether these were opened consecutively (double-click file A, then file B) or simultaneously.
It is a limitation of Qt, and we can't handle this properly, sorry.
More info: https://lists.qt-project.org/pipermail/interest/2018-January/029175.html

from bino.

OK, there are several points in this one report:

1. Regarding "open multiple files via double click": that seems to be specific to Mac, which I don't use. I see no way to do that in a system independent way. You might want to contact Frédéric Devernay (who builds Bino for Mac) about this.
2. Dedicated Zoom factors: The current zoom feature is designed for casual viewing of videos, not for a comparison of video qualities in two different files. I suggest that Bino is not the right tool for this job. I would recommend using a viewer such as qv that allows frame-by-frame analysis, and optionally producing a single video file with your desired specifications (regarding streams, zoom, cutout etc) either directly with ffmpeg or a frame-based tool such as tad.
3. Criteria for separate streams: These are not arbitrary, they are really technically necessary because of the way videos are stored in container formats and codecs. If these are not fulfilled, then the streams will be out of sync and there is no chance for consistent seeking. But these limitations are only in place for a video player that is optimized for linear viewing with synchronization to audio; if you use a frame-by-frame analysis tool such as qv then the two video sources can be completely different.
4. This is related to point 3. Basically, Bino is just not written with your use case in mind. You are better off using a different tool.

from bino.

Hi @marlam,

• Ad 1: I contacted Frederic. Let's await his reaction.
• Ad 2-4: Thanks for the info. Looked at qv 's webpage. Does not look to me like a readymade application but rather like a toolchain for pros. First you have to compile yourself (kicks out ordinary users already) and at first glance on the screenshots looks that it has no GUI.
• I was looking for a GUI out of the box which you can throw two files at, and then have a central playback/scrubbing control which plays back both videos in sync together, and some custom zoom control for proper visual comparison. Can I expect that from qv and tad?

from bino.

While qv has a GUI now, neither qv nor tad are probably on the level of ease of use that you expect... On the other hand, your use case is rather exotic, so I'm not sure if you can find a tool that has a GUI for what you want.

from bino.

Thanks for the info.

Exotic in the video playback world maybe. I assume not so exotic in the professional world of video encoding and streaming. Have to research more. These professionals certainly have the toolsets for analysis both subjective and objective (deduced from human perception tests). But these tools very likely are closed tools and expen$ive if I just look at what is charged by experts such as https://streaminglearningcenter.com

from bino.