On 2025-03-24 06:42 pm, James Almer wrote:
On 3/24/2025 9:31 AM, Martin Storsjö wrote:
On Mon, 24 Mar 2025, Gyan Doshi wrote:
ffmpeg | branch: master | Gyan Doshi <ffm...@gyani.pro> | Sat Mar 15
16:51:05 2025 +0530| [cbbc927a67f142a02bfc5d047c03587599ee5b55] |
committer: Gyan Doshi
ffmpeg: add per-stream input option drop_changed
This is a replacement in ffmpeg for the deprecated avcodec flag
AV_CODEC_FLAG_DROPCHANGED.
This option is meant to be used when the filtergraph should not be
reinited upon input parameter changes as that leads to loss of state
in the filtergraph potentially leading to broken or aborted output,
e.g. inserting of silence with first_pts specified in aresample.
Generally useful to avoid corrupted yet decodable packets in live
streaming inputs.
This option when enabled takes precedence over reinit_filters
http://git.videolan.org/gitweb.cgi/ffmpeg.git/?
a=commit;h=cbbc927a67f142a02bfc5d047c03587599ee5b55
---
This change is causing failed fate tests in many different
configurations; I'm seeing null pointer dereferences and similar, on
both msvc/arm, msvc/x86_32, macos/aarch64. Please investigate.
I pushed a quick fix, but nonetheless, the log message in question is
being printed for one stream (the last one handled by the scheduler)
rather than every stream where the option was the for, so it needs to
be properly done still.
Thanks. FATE passed here and on Patchwork as well.
If ifp can be NULL, how come this pre-existing line above,
if (ifp->type_src == AVMEDIA_TYPE_SUBTITLE) {
didn't lead to FATE failures?
Re: log, the final log is printed for each stream:
e.g., from the log of a command with option applied to aud and vid,
[af#0:1 @ 000001b4af668380] Total changed input frames dropped : 234
[vf#0:0 @ 000001b4af3e0540] Total changed input frames dropped : 149
Regards,
Gyan
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