чт, 25 июн. 2026 г., 05:17 Phyllis Smith <phylsmith2017@gmail.com>:
Andrew, I will also try to figure out what the cause is using gdb.
I tried to set breakpoint ("b" command in gdb ) to avformat_write_header but because Termux libavformat stripped from symbols for size reasons single stepping ("s" command) just returned me to our function with already-set error code. if I skip this error checking and go ahead libavformat segfaults kater on openjpeg/DNxHR at least (mxf openjpeg profile need change of encoder from libopenjpeg to jpeg2000 - libopenjpeg encoder was removed If I remember correctly some time ago from ffmpeg).
On Wed, Jun 24, 2026 at 6:08 PM Andrew Randrianasulu < randrianasulu@gmail.com> wrote:
чт, 25 июн. 2026 г., 00:51 Phyllis Smith via Cin < cin@lists.cinelerra-gg.org>:
See https://bug.cinelerra-gg.org/view.php?id=677 for problem and workaround to use an old 2025 AppImage. Root cause appears to me to be unimplemented patch - at least by February 2026 version of FFmpeg 8.1 - and hoping Andrew-R can check to see if by now there is a patch. Details in Mantis Bug Tracker of testing done.
Yes, I am looking into it
So far using termux's shared ffmpeg 8.1.2 libs I hit same error.
Not really obvious what causes it - avformat_wrie_header returns error, but there is no muxer-specific mxf write_header function in libavformat/mxfenc.c ?
On Wed, Jun 24, 2026 at 5:17 AM Andrea paz via Cin < cin@lists.cinelerra-gg.org> wrote:
On MantisBT, Quintao filed a bug report (BT 677) because he can't render avc_intra_100 in MXF format. He can, however, use MXF with DNxHR. I, on the other hand, can't use any MXF presets, but I can render avc_intra_100 in MOV format. Are any of you able to render in MXF?
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