[Ffmpeg-devel-irc] ffmpeg-devel.log.20191006

burek burek at teamnet.rs
Mon Oct 7 03:05:07 EEST 2019


[00:33:17 CEST] <Lynne> oh no
[00:33:53 CEST] <Lynne> I think I know the reason why the fixed mdct does not use the scale value at all, despite aacdec meticulously adjusting it for fixed/float
[00:34:52 CEST] <Lynne> I think aacdec_fixed compensates for whatever weird per-frequency scaling the mips int32 outputs using the scalefactors
[02:00:32 CEST] <philipl> jkqxz: https://github.com/philipl/FFmpeg/pull/1
[02:00:41 CEST] <philipl> Addressed your feedback, as I understood it, except still need to implement device derivation for hwupload.
[02:01:17 CEST] <philipl> Lynne: are you still going to pursue getting the vulkan hwcontext merged?
[02:15:17 CEST] <Lynne> philipl: not posting to the ML at all unless I get an apology from michaelni 
[02:16:27 CEST] <Lynne> and even then who knows, carl and nicholas hate me so much they'll likely halt all my patches at review
[02:17:14 CEST] <jamrial> Lynne: what happened? apology for what?
[03:38:31 CEST] <cone-251> ffmpeg 03James Almer 07master:3b4e9a31ea26: avformat/matroskadec: don't rescale mastering display values
[11:34:33 CEST] <cone-317> ffmpeg 03Mengye Lv 07master:9f353e376b16: avutil/common: Fix underflow for ROUNDED_DIV with unsigned integer
[11:34:33 CEST] <cone-317> ffmpeg 03Jun Zhao 07master:b0e682244816: avcodec/decode: fix indentation
[11:34:33 CEST] <cone-317> ffmpeg 03Jun Zhao 07master:d9bb12ee39ff: lavc/options_table: Correct the flags for AVCodecContext.flags2
[11:34:33 CEST] <cone-317> ffmpeg 03Jun Zhao 07master:a27c0781dded: doc/codecs: Update documentation for flags/flags2
[15:12:12 CEST] <cone-307> ffmpeg 03Paul B Mahol 07master:e37edc70bd88: avfilter: add anlms filter
[15:36:48 CEST] <cone-307> ffmpeg 03Paul B Mahol 07master:da9337c911c9: avfilter/vf_gblur: add support for commands
[15:47:17 CEST] <cone-307> ffmpeg 03Paul B Mahol 07master:66d45af13c04: avfilter/vf_avgblur: add support for commands
[18:45:45 CEST] <cone-307> ffmpeg 03James Almer 07master:5f758c31f9af: avformat/matroskaenc: use r_frame_rate as fallback to set a track's DefaultDuration
[20:03:01 CEST] <philipl> jkqxz: BtbN: Lynne: Hopefully final iteration of the vulkan/cuda transfer stuff.
[20:03:05 CEST] <philipl> https://github.com/philipl/FFmpeg/pull/1
[20:03:13 CEST] <cone-307> ffmpeg 03Andreas Rheinhardt 07master:670fd3b0ec8f: avformat/mpjpegdec: Avoid allocation of AVIOContext
[20:03:14 CEST] <cone-307> ffmpeg 03Andreas Rheinhardt 07master:e3650dcfc9cd: avcodec/cinepakenc: Fix invalid shifts
[20:03:15 CEST] <cone-307> ffmpeg 03Michael Niedermayer 07master:22bec0d33f42: avcodec/h2645_parse: Use av_fast_realloc() for nals array
[20:03:16 CEST] <cone-307> ffmpeg 03Michael Niedermayer 07master:81b53913bbb9: avformat/subtitles: Check nb_subs in ff_subtitles_queue_finalize()
[20:33:01 CEST] <cone-307> ffmpeg 03Paul B Mahol 07master:a1e5c35a6e43: doc/filters: fix few more typos
[20:55:36 CEST] <BtbN> philipl, what's the primariy limitation on it right now? As in, for a full GPU chain, you would do nvdec -> memcpy to Vulkan, -> filter with Vulkan filters -> map to CUDA -> nvenc?
[20:58:22 CEST] <philipl> BtbN: that's what you'd do
[20:58:30 CEST] <philipl> but it's memcpy back to cuda too
[20:58:35 CEST] <BtbN> meh
[20:58:41 CEST] <philipl> because the array mismatch
[20:59:01 CEST] <BtbN> This will get a mess once you need a CUDA filter, the a Vulkan one, then a CUDA one again
[20:59:13 CEST] <philipl> hypothetically, it would still work
[20:59:22 CEST] <BtbN> yes, but more and more copies
[20:59:37 CEST] <BtbN> We could probably give nvenc support to take in Vulkan frames
[20:59:46 CEST] <BtbN> where it maps it correctly internally
[21:00:54 CEST] <philipl> fudge the array stuff, sure.
[00:00:00 CEST] --- Mon Oct  7 2019


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