Den 05.01.2024 02:58, skrev Andrew Randrianasulu:
On Fri, Jan 5, 2024 at 3:59 AM Andrew Randrianasulu
<[email protected]> wrote:
пт, 5 янв. 2024 г., 02:59 Andrew Randrianasulu <[email protected]>:
пт, 5 янв. 2024 г., 02:53 Phyllis Smith <[email protected]>:
Bummer, although this does fix the 1 problem as discovered by Terje, it breaks
Bluray and DVD creation. You can easily see this without having a bluray
writer simply with these steps:
1) load video with audio which in my case was 1440x1080 (from a sony camera)
2) pulldown Settings/Format and switch to HDV 1080/25
3) pulldown File and select bd_render
Error is: FFMPEG::encode_activate: write header failed
/tmp/bd_20240104-164102/bd.m2ts
err: Invalid argument
To be honest it errs out for me even without my patch?
FFMPEG::encode_activate: write header failed
/data/data/com.termux/files/home/tmp/bd_20240105-035457/bd.m2ts
err: Math result not representable
for 1440*1080 hdv sample without setting format first (it sets itself on media
autoload) and using default bd render params (1440*1080, 25i)
ah, it was due to using system (unpatched) ffmpeg!
Try this series instead, it guards setting stream sample aspect ratio
only to muxers supporting it
(I grep in libavformat for sample_sapect)
I tested avi, qt, y4m, matroska
In DVD creation, it does create the DVD without erring out, but the DVD will
not even load on an LG DVD/Bluray device hooked up to the TV. It plays on the
Samsung UHD but hangs on 1 part towards the end.
So, I guess it should not be applied for at least m2ts and mpeg2 containers
..... I'll try to limit it only to mov/mp4/mkv/webm .
The patch probably has other unknown ramifications that I have not found. Neither HV or
CV have an existing "ffmpeg.C" file in the cinelerra subdirectory for
comparison.
On Sat, Dec 30, 2023 at 10:31 AM Andrew Randrianasulu <[email protected]>
wrote:
Now it seems to display correct (16/9) DAR for sample encoded directly from
hdv. (but for speed I tested vp8/webm, not av1/webm)
I have not tested it and don't know how this works. But shouldn't it in
principle keep or preserve the HDV 1080i "anamorphic flag" so players
detect to stretch it horizontally to DAR 16:9?
This also due to the fact that the HDV videopart should be possible to
copy directly to BD without rendering (or similar if downscaling to a
DV(D) anamorphic widescreen format).
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