[01:08:06 CEST] <fred1807> Could anyone kindle help find what is the difference between two small video files? I tried ffprobe... there is nothing more I can do to understand why 1 video freezes my raspberry pi and other dont [03:22:29 CEST] <Abbott> Is there a support channel for ID3v2? [04:57:57 CEST] <Evidlo> Are there any voice compression codecs for ffmpeg? [05:37:00 CEST] <chungy> Like speex or opus? [08:38:05 CEST] <Fyr> how to find out what version of ffmpeg is installed? [08:38:22 CEST] <Fyr> it responds on --version in a weird way. [08:39:40 CEST] <pzich> it's just -version [08:40:16 CEST] <Fyr> =) [08:40:23 CEST] <Fyr> why --help, but -version? [08:40:49 CEST] <pzich> looks like -help also works [08:41:07 CEST] <Fyr> for 2.7.2 - it doesn't. [08:41:09 CEST] <pzich> -h, -?, -help, --help [arg] [08:54:47 CEST] <chungy> yeah ffmpeg uses X-style args [09:03:27 CEST] <frenda> What is the 420p in this: -pix_fmt yuv420p? [09:03:56 CEST] <frenda> ffmpeg -video_size 1920x1080 -framerate 50 -f x11grab -i :0,0 -c:v libx265 -pix_fmt yuv420p output.mp4 [09:04:04 CEST] <pzich> https://en.wikipedia.org/wiki/YUV#Y.27UV420p_.28and_Y.27V12_or_YV12.29_to_RG... [09:06:45 CEST] <frenda> Ah [09:10:57 CEST] <frenda> What's wrong w/ this command: [09:11:06 CEST] <frenda> ffmpeg -video_size 1920x1080 -framerate 25 -f x11grab -i :0.0+0,0 -c:v libx265 -pix_fmt yuv420p output.mp4 [09:11:48 CEST] <frenda> 1. I does not stoped by pressing `q` key! [09:11:59 CEST] <frenda> 2. Th captured video is damaged! [10:44:49 CEST] <Mavrik> x265 for realtime capture? [10:44:51 CEST] <Mavrik> Why. [11:13:10 CEST] <Polochon_street> Hi! Does someone know with what flags I need to compile ffmpeg in order to debug programs with -fsanitize=address [11:30:57 CEST] <DHE> you probably want --extra-flags=-fsanitize=address [11:31:04 CEST] <DHE> (I usually use valgrind though) [11:33:07 CEST] <DHE> *extra-cflags [11:33:29 CEST] <DHE> do experiment a bit. compiler flags can have all sorts of side-effects [12:09:51 CEST] <TikityTik> I'm having issues like, [h264 @ 0x7f5f7c0086c0] Missing reference picture [12:09:56 CEST] <TikityTik> [h264 @ 0x7f5f7c0086c0] decode_slice_header error [12:10:04 CEST] <TikityTik> from a video I encoded with libx264 [17:08:44 CEST] <Polochon_street> Hm, I'm trying to debug memory leaks, and I installed ffmpeg with debug symbols (finally!) but I all have is this: http://sprunge.us/PdCE [17:09:00 CEST] <Polochon_street> is there a mean to see where the av_malloc() took place? [17:09:34 CEST] <JEEB> is that valgrind? [17:09:44 CEST] <JEEB> IIRC it should also output the stack trace [17:10:02 CEST] <JEEB> if it's not valgrind, then I deeply recommend it [17:10:16 CEST] <Polochon_street> it's the -fsanitize=address option of gcc [17:10:25 CEST] <JEEB> ok, so probably less useful [17:10:34 CEST] <JEEB> try running your code under valgrind next time [17:10:37 CEST] <Polochon_street> what options should I pass to valgrind in order to have all the stack trace? [17:10:47 CEST] <c_14> valgrind --leak-check=full [17:10:56 CEST] <Polochon_street> thanks [17:10:58 CEST] <JEEB> yeah, that was it [17:11:30 CEST] <JEEB> I used to do valgrind for things that have children etc so I used to use [17:11:31 CEST] <JEEB> --leak-check=full --track-origins=yes --trace-children=yes [17:11:58 CEST] <Polochon_street> okay, thanks. Let's see! [17:13:24 CEST] <Polochon_street> ah-ha! [17:13:54 CEST] <Polochon_street> http://pastebin.archlinux.fr/1489347 [17:13:55 CEST] <Polochon_street> found it! [17:17:35 CEST] <JEEB> Polochon_street: now wonder how fun it is to find that stuff /without/ the ability to use valgrind [17:20:03 CEST] <Polochon_street> (I don't want to ._.) [17:20:53 CEST] <JEEB> I do a lot of development on windows, no valgrind there [17:20:55 CEST] <Polochon_street> okay, so after I avformat_open_input'd an avformatctx, apart from freeing it with avformat_close_input(), should I do something else? [17:21:18 CEST] <Polochon_street> heh, that's why I really don't want to work on windows [17:21:47 CEST] <JEEB> yeah, that's why most of my stuff can compile on lunix and windows [17:22:01 CEST] <JEEB> so I can test it out on both [17:22:07 CEST] <JEEB> (and use valgrind on the lunix side) [17:22:36 CEST] <JEEB> Polochon_street: https://github.com/jeeb/matroska_thumbnails/blob/master/src/matroska_thumbna... [17:22:43 CEST] <JEEB> looks like I also called avformat_free_context() [17:25:37 CEST] <Polochon_street> hm, that didn't solve my problem, but it can't hurt either. Thanks! [17:33:01 CEST] <Polochon_street> okay, I'm almost there, it seems that freeing an avformat is not so simple [17:33:02 CEST] <Polochon_street> http://pastebin.archlinux.fr/1489348 [17:33:27 CEST] <Polochon_street> I'm calling avformat_close_input(&pformatCtx) and avformat_free_context(pFormatCtx) [18:18:46 CEST] <Polochon_street> JEEB: You may want to edit your code, I checked, and avformat_close_input() already performs an avformat_free_context() (cf https://www.ffmpeg.org/doxygen/2.5/libavformat_2utils_8c_source.html) [18:19:44 CEST] <JEEB> that might or might not have been true before :) but sure [18:19:50 CEST] <JEEB> that code I haven't touched since ~2013 or so [18:20:13 CEST] <JEEB> just to see how hard it would be to poke the Windows explorer thumbnails system [18:30:21 CEST] <Polochon_street> yeah you're right, sorry. Now I'm trying to understand why, despite an av_freep(&s->internal) inside the avformat_free_context(), I'm still having this leak [22:10:18 CEST] <AlexanderSh> Hello! I'm decoding udp multicast stream use ffmpeg. Source: Hardware encoder, 1080i, GOP structure is IBBP, I frame each 6 frames. But I have the lag about 30 frames. How to reduce latency? [23:40:47 CEST] <sarkyniin> hey [23:41:09 CEST] <sarkyniin> how do I replace an mkv file's subtitle track? [23:55:15 CEST] <KarlFranz> Use mkvtools for that. [00:00:00 CEST] --- Mon Aug 31 2015