Rendering a movie using image sequence

[sonosublime]

Hi all,

I have had a go at exporting a movie as an image sequence (also exporting a separate WAV file for the sound), and then putting the images and sound into VirtualDub. However, the resultant AVI file seems a bit slow, and falls out of sync with the sound.

Can anyone provide advice? I've tried googling tutorials on this, but they either use different programs, or go into compression features that I do not have for whatever reason.

[Zappy]

The resulting AVI might be uncompressed. Simply import it in a video editing tool, then save it.
(I use Windows Live Movie Maker (*gasp*) for that.)

[sonosublime]

But even after compressing the video in Windows Movie Maker, the problem persists. It's like the video is going in slow motion, either because it has too many images or for some other reason.

[Pte Jack]

Don't render AVIs (Not sure if VD renders MP4, I use Blender to render Image Sequence Video)

[episoder]

you might setup the framerate in sfm when rendering. or simply use exactly that one from sfm when exporting the video from vdub. that's essentially the "glitch".

and... why not use mp4 - h264 rendering in sfm. you think you can tweak alot of picture quality? but... your choice *bows*

[sonosublime]

I think I need to know this before moving forward: how do I know at what framerate I am exporting image sequences from SFM?

Publicado originalmente por Pte Jack:

Don't render AVIs (Not sure if VD renders MP4, I use Blender to render Image Sequence Video)

Well, I've had a go at using Blender to render an AVI movie (w/ H.264 file format), however, the resulting movie still seems to be a bit jerky. And is there a way to add the WAV sound file when compiling in Blender?

Publicado originalmente por episoder:

you might setup the framerate in sfm when rendering. or simply use exactly that one from sfm when exporting the video from vdub. that's essentially the "glitch".

and... why not use mp4 - h264 rendering in sfm. you think you can tweak alot of picture quality? but... your choice *bows*

I've tried using H.264 compression before, but find that I cannot put the resulting file into Windows Movie Maker to further compress and do post processing.

[Zappy]

Publicado originalmente por sonosublime:

I think I need to know this before moving forward: how do I know at what framerate I am exporting image sequences from SFM?

That depends on whether you set "Override framerate". If so, what you set it to. If not, the project framerate.

[sonosublime]

Where do I check on the 'Override framerate'?

EDIT: Never mind, I figured out it is in the Export Movie 'advanced/more options'.

[R234]

You probably just didn't set the framerate correctly in Vdub. Once you figure out what framerate you exported your movie at (by default it's 24 fps, so that's probably it), in Vdub, click on "Video" -> "Frame rate..." (or Ctrl+R), then under "Source rate adjustment", select "Change frame rate to (fps)" and type your exact video's frame rate so it's at the right speed. Click OK.

EDIT:

You can see your project's framerate in the bottom right of the SFM window, at "fps", after the slash.

EDIT2:

Misturgy explains the whole Vdub process in detail here: http://steamcommunity.com/app/1840/discussions/0/864969481773034807/#c864969481799210023

[Pte Jack]

Default FR for SFM is 24FPS, You can overide that, as Vintage says, to whatever. VirtualDub is set to 10FPS for image Sequence video, you have to set that to the render framerate you used in SFM. This setting is found under the Video Menu option in VirtualDub. Also, The VD Image Sequence default FR can be changed to whatever in the Options Preferences Images option.

You can also convert the frame rate if you wish Video Framerate option of VD.

[sonosublime]

No problem, and thanks for all the help, guys. I was also directed to this helpful guide here:

http://steamcommunity.com/sharedfiles/filedetails/?id=375229570

I believe I will stick with Blender, as it also apparently has greenscreen chroma key post processing capabilities.

[Pte Jack]

Wow, took me around an hour and a half to download, install and configure the required files to produce mp4s via external encoders with Virtualdub. It does a pretty good job. You just have to remember to convert and compress wav files if your linking them as audio for your project or the process will abort, mp4s no problem, they auto compress...

I used this discussion starting at post #48

https://encodingtalk.com/threads/virtualdub-save-direct-to-mp4-fraps-to-youtube-with-external-encoders.2446/page-3

Because it uses ffmpeg, you can set up pretty much any format you want to produce as a preset.

[sonosublime]

Hi all,

I have a new but related question. Let's say I am rendering a 30 min movie, and have rendered its images and compiled the movie segments (in Blender) in smaller manageable chunks.

I was going to then throw the movie segments into Windows Movie Maker and compile it into 1 long movie. But is there a way to do that without the program automatically compressing the movies and reducing the quality?

[Pte Jack]

you don't want an uncompressed video.... nope, nope.

It would be massive and I doubt very much that the audio would be in sync.... (don't know, have never tried an uncompress render)

[Zappy]

Publicado originalmente por sonosublime:

reducing the quality?

Oh. You mean what YouTube does?

[episoder]

seriously. youtube squeezes it anyway. but... you could perhaps try a lossless codec for interprogram exchange. i'm not sure that's efficient tho since ssao blows up data like nuts.

for normal exchange you just gotta make sure your bitrate is high enough to not loose you intermediate quality. and i dunno why you use vdub and wmm and all that tool. i use avidemux2 and it outputs a fully compliant mp4 from image sequences. as long as your source material is fine framerate and audio sync it beasts it in whatever muxmerge recompression you wanna do.