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Setting time_base when adding a stream to an output container #1524
Description
Overview
Accessing time_base now raises an error with 13.0 when specifying time_base when calling add_stream on an output container
Expected behavior
Able to specify the time_base on a stream like previous versions
Actual behavior
RuntimeError raised when it's called
Traceback:
Traceback (most recent call last):
File \"/usr/src/app/test.py\", line 129, in test
main()
File \"/usr/src/app/test.py\", line 81, in _test
stream = container.add_stream(
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File \"av/container/output.pyx\", line 132, in av.container.output.OutputContainer.add_stream
File \"av/stream.pyx\", line 111, in av.stream.Stream.__setattr__
File \"av/codec/context.pyx\", line 511, in av.codec.context.CodecContext.time_base.__set__
RuntimeError: Cannot access 'time_base' as a decoder"
Investigation
Caused by this commit
Reproduction
Call add_stream with time_base, like this:
container.add_stream("h264", time_base=Fraction(1, 1000))
Versions
- OS: Debian Bookworm
- PyAV runtime: 13.0
PyAV v13.0.0
library configuration: --prefix=/usr --enable-shared --disable-static --disable-debug --disable-doc --disable-ffplay --enable-gpl --enable-libfdk_aac --enable-libx264 --enable-libx265 --enable-librsvg --enable-openssl --enable-nonfree --enable-libaom --extra-libs=-lpthread
library license: nonfree and unredistributable
libavcodec 60. 31.102
libavdevice 60. 3.100
libavfilter 9. 12.100
libavformat 60. 16.100
libavutil 58. 29.100
libswresample 4. 12.100
libswscale 7. 5.100
- PyAV build:
pip3 install av==13.0.0 --no-binary av
Research
I have done the following:
- Checked the PyAV documentation
- Searched on Google
- Searched on Stack Overflow
- Looked through old GitHub issues
Additional context
If there's another way to specify this, then I'm definitely up for switching how I specify this, but I believe this is a valid use case since it's an encoder rather than a decoder and maybe the issue is that something is wrong with the is_decoder check?
Activity