Custom Frame Rate Does not allow some Common Frame Rates #43006

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Aaron Carlisle · 2014-12-24T21:18:16+01:00

Aaron Carlisle commented

2014-12-24 21:18:16 +01:00

System Information

Windows 8.0 Intel HD 4600

Blender Version

Broken: (Blender 2.73RC)
Worked: (Unknown)

Short description of error

Custom Frame Rate Does not allow some Common Frame Rates. For example 60000/1001 which is needed for the DNxHD Codec

Exact steps for others to reproduce the error

Open Blender
Change Output too a video file e.g. H.264
Under Encoding change format to something that supports codecs e.g. AVI
Under codec choose DNxHD
Try to render
You get the fallowing error :Frame size: 1920x1080p; bitrate: 90Mbps; pixel format: yuv422p; framerate: 60000/1001
Try to change to that frame rate

**System Information** Windows 8.0 Intel HD 4600 **Blender Version** Broken: (Blender 2.73RC) Worked: (Unknown) **Short description of error** Custom Frame Rate Does not allow some Common Frame Rates. For example 60000/1001 which is needed for the DNxHD Codec **Exact steps for others to reproduce the error** 1. Open Blender 2. Change Output too a video file e.g. H.264 3. Under Encoding change format to something that supports codecs e.g. AVI 4. Under codec choose DNxHD 5. Try to render 6. You get the fallowing error :Frame size: 1920x1080p; bitrate: 90Mbps; pixel format: yuv422p; framerate: 60000/1001 7. Try to change to that frame rate

Aaron Carlisle commented

2014-12-24 21:18:16 +01:00

Changed status to: 'Open'

Aaron Carlisle commented

2014-12-24 21:18:16 +01:00

Added subscriber: @Blendify

Sergey Sharybin commented

2014-12-24 21:30:26 +01:00

Changed status from 'Open' to: 'Archived'

Sergey Sharybin closed this issue

2014-12-24 21:30:26 +01:00

Sergey Sharybin self-assigned this 2014-12-24 21:30:26 +01:00

Sergey Sharybin commented

2014-12-24 21:30:26 +01:00

This isn't a blender bug, it's just some codecs in combination with containers and other settings are not supported by FFmpeg. We're doing our best to provide reasonable description of the error provided by FFmpeg and in this case it doesn't work very well. You can see full error message from FFmpeg in the console when running blender with --debug-ffmpeg command line argument.

It is in our todo to simplify codecs selection, but it's not so trivial at all, especially since FFmpeg does not provide any information about what is supported and what is not before you actually starting to encode.

Thanks for the report anyway.

This isn't a blender bug, it's just some codecs in combination with containers and other settings are not supported by FFmpeg. We're doing our best to provide reasonable description of the error provided by FFmpeg and in this case it doesn't work very well. You can see full error message from FFmpeg in the console when running blender with --debug-ffmpeg command line argument. It is in our todo to simplify codecs selection, but it's not so trivial at all, especially since FFmpeg does not provide any information about what is supported and what is not before you actually starting to encode. Thanks for the report anyway.

Aaron Carlisle commented

2014-12-25 18:28:37 +01:00

Can't this be fixed by changing the limit of values for the frame rate

Sergey Sharybin commented

2014-12-25 18:51:51 +01:00

No, because some codecs also requires specific values of frame dimensions.

Aaron Carlisle commented

2014-12-25 18:59:38 +01:00

But we have customs frames dimensions

Sergey Sharybin commented

2014-12-25 19:04:14 +01:00

Wait, must have misunderstood your previous comment then. What exactly did you mean?

Aaron Carlisle commented

2014-12-25 19:10:27 +01:00

The reason we can't render in this codec is because it requires a custom frame rate which exceeds the value limits. So if the value limits are changed the codec should work.

Aaron Carlisle commented

2014-12-25 20:13:12 +01:00

Alright so a just realized that there is a way to get around this. Under presets there are some options one of them being the frame rate needed for this codec. However it would be better for the design if you could choose this manually also.