[Ffmpeg-devel-irc] ffmpeg.log.20190216

[burek]

[01:12:30 CET] <keegans> JEEB: re: the HLS implementation, yeah it is broken but i'm not sure how to pinpoint what is exactly broken
[01:12:42 CET] <keegans> right now i took a URL and fed it to ffmpeg and it reporst the wrong number of samples
[01:12:53 CET] <keegans> perhaps it is only the first audio file -- but it cuts off and then stops giving me frames
[01:13:11 CET] <keegans> ffprobe also has the same issue (only shows like 250 frames when there is like 2000+)
[01:13:20 CET] <keegans> (spread across many chunked mp4 files)
[01:38:27 CET] <keegans> ffprobe -v trace shows AVIndex sample 215, says 1/22050 after the sample# and using a av_read_frame loop gives me 645 samples
[01:38:28 CET] <keegans> so wtf
[02:53:43 CET] <_Vi> How do I specify ffmpeg to map all streams from all input files?
[02:54:12 CET] <_Vi> Is there something like `-map *:*`?
[03:02:49 CET] <_Vi> (Keep forgetting that `ffmpeg -i input -c copy -y output` spills away extra languages; remembering only after deleting original file)
[03:22:53 CET] <c_14> _Vi: afaik there is no such option, you have to add a -map $number for every input
[03:26:39 CET] <_Vi> Maybe FFmpeg should warn more clearly and more red-coloured-ly by default if it decides to omit some audio or subtitle tracks? Like "unused input streams: ..."
[03:27:25 CET] <_Vi> Omission of additional tracks may be not noticeable initially, only later when those tracks become needed.
[03:27:52 CET] <c_14> probably should, I'm pretty sure it's just legacy behavior at this point
[03:28:53 CET] <_Vi> Are patches to add `-map '*'` or to implement that warning welcome?
[03:29:09 CET] <c_14> should be, yeah
[03:35:41 CET] <furq> probably don't use * just because it'll be annoying having to escape it
[03:35:46 CET] <furq> maybe e
[03:39:28 CET] <_Vi> What do you suggest instead? `-map all`? `-map_all`?
[03:39:49 CET] <_Vi> Or just change the default to include everything?
[03:40:16 CET] <furq> i'm going to assume changing the default would get vetoed
[03:40:20 CET] <furq> so i'd probably just go with -map e
[03:40:36 CET] <furq> A is technically free but that would be needlessly confusing
[03:43:33 CET] <furq> on second thoughts i would actually go with -map all so it's clear that it's handled specially by map and not a stream specifier
[04:15:06 CET] <keegans> how can i read a fragmented mp4 using ffmpeg ?
[04:52:48 CET] <Hackira> Hello guys, I try to compile ffmpeg with ndi support but I get a where ld can't find -lndi, can someone help me figure out what am I doing wrong ?
[05:15:48 CET] <zap0> can anyone help me understand how v210 works
[07:42:15 CET] <MrDave20161> Hi:  I am using swr_convert in my application and it works fine on my VM(Ubuntu 18.04 x64) development machine but when I compile the same code over on my server(Debian 9 x64), it is throwing a seg fault in 'ff_float_to_int16_sse2'  Does anyone have any suggestions on additional swr_convert parameters?  Occurs with ffmpeg 3.4 as well as 4.1 also when just converting FLTP to FLTP
[11:31:46 CET] <Jan-> hihi ffmpeg people
[11:32:08 CET] <Jan-> I have an AVI file and a WAV audio file and I need an mp4 output file with the video and audio.
[11:32:19 CET] <Jan-> Right now I have a command line that turns the AVI into an mp4
[11:32:27 CET] <Jan-> how do I go about adding in the wave file for audio?
[12:24:43 CET] <_Vi> Jan-, Something like `ffmpeg -i yourvideo.avi -i youraudio.wav -c:v copy -map 0:v -map 1:a output.mp4`
[12:25:00 CET] <Jan-> thanks
[12:28:56 CET] <DHE> the map commands should be unnecessary since the default is for ffmpeg to take the last source for each of audio and video...
[12:29:22 CET] <Jan-> I did wonder
[00:00:00 CET] --- Sun Feb 17 2019