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Mirror of git://source.ffmpeg.org/ffmpeg.git
Home Page: https://ffmpeg.org
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This project forked from ffmpeg/ffmpeg
Mirror of git://source.ffmpeg.org/ffmpeg.git
Home Page: https://ffmpeg.org
License: Other
I am not sure when/if this is needed. Assuming the file is accessible to the server executing SageTVTranscoder, this should not be an issue. Will keep this in the backlog for potential future implementation.
The newer version of FFMpeg's metadata output does not match the SageTV version very much at all. There are two options.
I think I would like to see how difficult it would be to match the outputs.
Here is a page for some reference: https://trac.ffmpeg.org/wiki/HWAccelIntro
SageTV passes process priority to FFMpeg. This is not a part of FFMpeg.
It appears that there were changes in meaning in the values passed to -v between the old and new version of FFMpeg. I want to evaluate and translate back to the old values.
This may be something that we want to change in SageTV in the future.
The base ability to accept the bitrate changes has been coded. Need to send those updates to the transcoder to change the bitrate.
I need to test further, but when remux to MKV it was not showing the percentage. Further investigation required.
I appologize in advance for my stupid question, and I suspect that there is greater than zero chance that this
exact question has been asked before, but I've been searching both old sagetv forums and new ones here on github,
and not able to find the answer.
In my understanding SageTVTranscoder plugin pulls transcoding profiles from Sage.properties from "transcoder/formats/"
entries, but these are only used for transcodings initiated by "convert" action with matching format entries.
But where is/are the entry/erntries for the on-the-fly transcoding for miniclient with fixed transcoding setting?
i.e. looking at this entry from SageTVTranscoder.log:
################################ SageTVTranscoder (FFmpeg) starting ################################
Arguments: /opt/sagetv/server/ffmpeg -ss 201 -v 3 -y -threads 2 -sn -vsync 0 -async 1 -stdinctrl
-i /var/media/tv/ComicsUnleashedWithByronAllen-39476-0.mpg -threads 6 -f matroska -vcodec mpeg4 -b 10000000
-r 29.97 -s 1920x1080 -g 300 -bf 0 -acodec ac3 -ab 192000 -ar 48000 -ac 2 -packetsize 1024 -aspect 16:9
-deinterlace -muxrate 2000000 -rc_init_cplx 326 -maxrate 10000000 -minrate 0 -bufsize 10000000 -mbd 2 -map 0:0 -map 0:1 -
Exiting for some other reason
################################ Exiting ################################
The bitrates and container are pulled from miniclient settings, resolution is from "use souce" setting, but where are other
parms specified? I am mainly interested in codec setting, as I would like to try changing mpeg4 to either hevc_nvenc or
h264_nvenc, but would also be interested in playing with other parameters.
I assume that same code is executed for miniclient "dynamic" setting when either bitrate or network conditions are not met,
is my assumption correct?
Thank you
SageTVTranscoder has output of tumbnail position and size in the flac file. I reviewed the existing code, and found and added a stub to where this change needs to be made in the source. The code was very different in the current version, so I was not sure how to proceed. TODO comment was added.
SageTV uses FFMpeg to generate thubnails. Need to review the command line options, and the execution to see if there are modifications needed.
Issues found:
The way that crop works has changed. Looks like positive values used to remove from the video. For instance 0:8:0:0 would remove 8 pixels from the top of the video. Now you need to give the total size of the output of the crop.
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