Dear community,

I just started playing around with KDEnLive a couple of days ago. First of all: OMG what an awesome tool! You guys rock :)

But, while playing around, I encounter a problem now. My rendered video is not like the preview was suggesting me. In fact it is useless right now :) It start being wrong when I use the first "Composite" effect. I also tried different rendering options.

The video files which I import are captures with FRAPS, and have therefore a wired encoding, maybe this is the problem?

would be nice if you can help me. If you need further information, I can send the project XML file and/or tell you the different rendering options I used, which resulted in a wrong video.

All the best, thanks - Alex

Hello again!

It seems like, some people are looking into this thread, but no one really knows what to answer.

Please response:

*if you have the same similar problem.
*if I did something wrong(example: if you need more informations or if this is the wrong forum)
*if you know the solution :o


All the best, Alex

Hi Griffon,

you wrote: "But, while playing around, I encounter a problem now. My rendered video is not like the preview was suggesting me. In fact it is useless right now :) It start being wrong when I use the first "Composite" effect. I also tried different rendering options."

Maybe the readers are tired of always asking the same questions: What *exactly* do you mean be "wrong"? How could somebody know if he has the same problem, if you do not tell us, what the problem is? What version of Kdenlive, mlt, ffmpeg, used render profiles, anything that could help us to help you.

Hello al25fps,

thanks for your reply.

The barely described problem before, was on Ubuntu 10.04. With the newest Kdenlive, and I guess the other packages where the newest version as well, as I just downloaded them a week ago.

In the meantime I made an Ubuntu update to 11.04, and re installed kdenlive, because it didn't worked any more (couldn't start it).

On my old Ubuntu, I had a "wrong/crazy" file as the result of my rendering. I wont describe it, because I'll now explain a different effect of the problem with my new Ubuntu version.

Setup of the project files/rendering options and description of the (new) effect of the error/problem:
======
As input files I used different recorded videos with FRAPS. The Files have the typical FRAPS video codec FPS1 and audio codec PCM S16 LE inside the AVI container. I thought the Codec might be a problem so I used VLCPlayer to convert my files to other codecs as well. I did the same rendering with the same files also in this Codec: H264-MPEG-4 AVC, without sound , again as an AVI file.

I started rendering the file with different rendering options, like: YouTube 1280 * 720 or H.265 1000K.

With my new Ubuntu, at 25% I get a crash report. You will find the screen shot [Picture 2] and the report in the attachments. With my old Ubuntu, the rendering was successful but not as I want it, now it just crashes. After the crash, I find the video file in my folder. But can't open it with VLC or Banshee, I guess it is just broken :)

I think the problem occurs when the rendering starts "executing" the first Composite effect. Ill add a picture of the composite details as well [Picture 1]. Let me explain what I'm doing in this moment, where I think the rendering crashes:
First I have just one video playing on video layer 4. At 1:05 minutes, I split the video, and made a static shot of the last picture before the cut. This "screen shot" will now be presented, so the video looks like frozen. So instead of a video file, I have a picture now in the video layer 4. In the same time, I want to present "title-clip" in the video layer 3. I want to present some text as the video "freezes". Therefore I use for this two images the composite effect. And as you can see in the screen shot of the effect, the text from video layer three just slowly fades in.

This is how the preview is representing it. In my old Ubuntu, where the file was rendered but different to preview, the music stopped when the first composite effect appears, and the text was not there, or suddenly over the whole video, or small graphics which I include later just appear on the wrong place and size. Unfortunately I cannot reproduce this old effect or the error. As I said before, with my new Ubuntu, the rendering just crashes.
======

Maybe it is just me being stupid (very likely) because I never learned how to video edit or use this software, maybe the problem is because I try the apply the composite effect to two "pictures" instead of two videos. If you need more details please just answer here. As you maybe see, my pictures are in German, if someone need a translation, please tell me as well.


Thank you very much, Alex

I have the same problem :(

I am sitting half a night and I do not understad, why is something different in my Project Monitor, and something differnet after rendering.

I have very easy task for Kdenlive.

On Video1 track there is a movie, on audio1 track, there is an audio from microphone (which I exchanged with original audio). When I run my Project Monitor, everything is fine, but after rendering instead my project, there is still image for about 20 sec (but sound is ok) and after that movie starts, but now to movie is 20 sec late to the sound...

Nightmare :(


I realized the problem is only when I use normal rendering, when I have options "render using proxy clips" the film is OK (off course much worse quality).


Is that a bug or maybe I am doing something wrong?

Still looking for help guys: http://www.youtube.com/watch?v=TU7JjJJZi1Q

Please feel free to ask questions or send some critics, like al25fps did.

See you later, Alex

vylaern, if you can render OK using proxy clips, it seems like there is a problem with seeking on your source files. Therefore, maybe you should transcode or remux your source clips instead of using proxy. I do not know the format of your source files, but if AVCHD, see recent posts about how to convert to MKV or MOV. There are DNxHD transcode presets in Kdenlive by right-clicking the clip in the Project Tree.