[Ffmpeg-devel-irc] ffmpeg-devel.log.20180605

burek burek021 at gmail.com
Wed Jun 6 03:05:03 EEST 2018

[01:47:54 CEST] <cone-139> ffmpeg 03Michael Niedermayer 07master:dce80a4b47ef: avcodec/amrwbdec: Fix division by 0 in find_hb_gain()
[01:47:55 CEST] <cone-139> ffmpeg 03Michael Niedermayer 07master:e7dda51150b7: avcodec/opus_silk: Change silk_lsf2lpc() slightly toward silk/NLSF2A.c
[02:48:52 CEST] <cone-139> ffmpeg 03Lou Logan 07master:1f75756c7194: doc/filters: mention required compile options for some filters
[06:22:46 CEST] <rcombs> does lavc support HEVC tiling
[06:25:11 CEST] <atomnuker> nope, not yet
[06:25:39 CEST] <rcombs> is it possible to combine arbitrary HEVC packets together into a single packet with tiling
[06:26:50 CEST] <atomnuker> I think so, the tiles are independent
[06:27:01 CEST] <rcombs> might be a good solution to HEIF tiling, then
[06:27:19 CEST] <rcombs> the demuxer could read the tile metadata and combine the 48 packets into one
[06:29:21 CEST] <atomnuker> a bsf could do it too
[06:31:23 CEST] <atomnuker> do they do the same tiling with h264?
[06:50:43 CEST] <rcombs> nobody does h264 in HEIF afaik
[06:50:56 CEST] <rcombs> atomnuker: bsfs can't take multiple input streams
[06:51:21 CEST] <rcombs> plus that'd require you to pass all the inputs in manually, even if they did
[07:02:21 CEST] <atomnuker> multiple input streams? my idea was to make the demuxer export all the tiles as packets in a single stream and have a bsf to combine them
[07:03:33 CEST] <rcombs> hmm, I guess you could do that
[07:03:55 CEST] <rcombs> they're coded as independent streams in the MP4, though
[07:04:05 CEST] <rcombs> well, in that they're streams at all
[07:04:25 CEST] <rcombs> but two tiles are coded the same way as two separate images, just with another blob containing data about how to merge them
[07:04:40 CEST] <rcombs> atomnuker: how much do you know about HEVC tiling syntax anyway
[07:05:00 CEST] <atomnuker> not much at all
[07:05:09 CEST] <atomnuker> I think nevcairiel and wm4 were discussing this months ago
[11:33:32 CEST] <cone-361> ffmpeg 03Paul B Mahol 07master:4d93c63e785d: avcodec/magicyuvenc: write max huffman length and extradata too
[11:33:33 CEST] <cone-361> ffmpeg 03Paul B Mahol 07master:ddf6ff9dc6e6: avcodec/magicyuvenc: mark as not more experimental
[15:52:57 CEST] <cone-361> ffmpeg 03Sergey Lavrushkin 07master:d8c0bbb0aa45: Adds TensorFlow backend for dnn inference module.
[17:20:45 CEST] <cone-361> ffmpeg 03Sasi Inguva 07master:318d0fcbfe56: lavf/mov.c: Fix timestamps to be strictly monotonic for video also.
[00:00:00 CEST] --- Wed Jun  6 2018

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