I am using “SynfigStudio-1.3.11-testing-19.02.09-win64-9583a” on Windows 7 (x64). I started a new project, imported a png image: [Test%20Text] then I tried to render the project as an “mp4” video with ffmpeg using H264/AVC/MPEG-4 AVC (LossLess) codec. But no matter what values I choose for “Qual…

FFMPEG rendering is “a bit buggy” at the moment. There are other ways to create a clean video, let’s check the explanations by Lobozamora :slight_smile: [image] Rendered video has visual noise in each format Synfig related help On Ubuntu 18.04 64-bit, I’m rendering a shor…

While searching for a solution I have tried to render an “animation” as a series of png images, and then I tried to convert these images into a video with FFmpeg using a lossless H.264 encoding. The result looks better, than when I was rendering with Synfig Studio straight to the video, albeit still…

fmpeg -i "Test Animation.%%04d.png" ... -b:v 10M ... "video.mp4"

Thank you, @bazza I will try that too. In the meantime I found what the problem was. My original image was in the RGB color space and in that case a different codec has to be used, namely the libx264rgb codec. Otherwise, FFmpeg converts RGB to YUV and the colors are messed up in the output. Encodin…

try this: ffmpeg -i ... -b:v 10M -b:a 256k -acodec ac3 -vcodec mpeg4 -g 30 .. mp4 is a format complicated. I prefer webm ffmpeg -i ... -b 2M -vcodec libvpx -acodec libvorbis -ab 160000 -f webm -g 30 ... PD: In editor of video always is convenient to use sequencer of archives

Thanks for some more hints, @bazza . I tested what you suggested. Option “-b:v 10M” has no effect at all. Options “-b:v 10M -vcodec mpeg4 -g 30” make things look even worse. And these settings “-b 2M -vcodec libvpx -acodec libvorbis -ab 160000 -f webm -g 30” have failed to produce any output at a…

try with more megabits -b:v 100M o 500M… -g Use a 2 second GOP (Group of Pictures), so simply multiply your output frame rate * 2. For example, if your input is -framerate 30, then use -g 60. in PAL HD 25 in NTSC HD 30… normal 50, 60… poor …500, 600…

@bazza , I tried to run this: "C:\Programs Portable\FFmpeg v3.3.2 (x64)\bin\ffmpeg.exe" -framerate 24 -i "Test Animation.%%04d.png" -b:v 500M -vcodec mpeg4 -g 48 "video.mp4" But the output video, while more than three times larger than that, encoded with the libx264 codec, has a notably worse quali…

24 framerate is for Film. Don’t work fine in TV [image] Bill-Jobs: It seems to me that the problem is not in the bitrate, but rather in the RGB to YUV color conversion. Where have this problem. They can send screenshot try: ffmpeg -i video.mp4 video.yuv But this is a RAW format

[image] Ffmpeg quality export FOSS discussion ffmpeg -y -i "w.000%01d.png" -r 25 -b:v 1M -vcodec libx264 1.mp4 [mpv-shot0001] ffmpeg -y -i "w.000%01d.png" -r 25 -b:v 500M -vcodec libx264 500.mp4 [mpv-shot0002]

Render options have no effect on render quality

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BobSynfig February 13, 2019, 7:16pm 2

FFMPEG rendering is “a bit buggy” at the moment.
There are other ways to create a clean video, let’s check the explanations by Lobozamora