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ffmpeg-devel.log.20160430
by burek 01 May '16

01 May '16

[02:09:09 CEST] <Timothy_Gu> Compn: huffyuv is frame multithread enabled (both enc and dec) [03:36:55 CEST] <cone-494> ffmpeg 03KO Myung-Hun 07release/2.6:ff1093efe080: MAINTAINERS: add myself as an OS/2 maintainer [03:36:55 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:bd641685f4ce: swscale/x86/output: Move code into yuv2planeX_mainloop [03:36:55 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:7bf84d1c2b4e: swscale/x86/output: Fix yuv2planeX_16* with unaligned destination [03:36:55 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:e0d4decf52ff: avutil/pixdesc: Make get_color_type() aware of CIE XYZ formats [03:36:55 CEST] <cone-494> ffmpeg 03Carl Eugen Hoyos 07release/2.6:6d36d0ade93c: postproc: fix unaligned access [03:36:55 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:32a453eae28f: swscale/input: Fix GBRAP16 input [03:36:55 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:b6d9ecfe2294: swscale/utils: Fix chrSrcHSubSample for GBRAP16 [03:36:56 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:97da8f43a4e9: avcodec/avpacket: clear priv in av_init_packet() [03:36:57 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:778ee32990d2: avcodec/mjpegdec: Fix decoding slightly odd progressive jpeg [03:36:58 CEST] <cone-494> ffmpeg 03Rodger Combs 07release/2.6:578e4998641c: lavf/mov: fix sidx with edit lists (cherry picked from commit 3617e69d50dd9dd07b5011dfb9477a9d1a630354) [03:36:59 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:20196b6abd66: avformat/cache: Fix memleak of tree entries [03:37:00 CEST] <cone-494> ffmpeg 03Boris Nagels 07release/2.6:d33cc39eb8d9: avformat/rtpenc: Fix integer overflow in NTP_TO_RTP_FORMAT [03:37:01 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:b653f7999ad3: avformat/concatdec: set safe mode to enabled instead of auto [03:37:02 CEST] <cone-494> ffmpeg 03Martin Cracauer 07release/2.6:b987e8a38b46: avutil/channel_layout: AV_CH_LAYOUT_6POINT1_BACK not reachable in parsing [03:37:03 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:ba959ea35c2b: avutil/random_seed: Add the runtime in cycles of the main loop to the entropy pool [03:37:04 CEST] <cone-494> ffmpeg 03PrzemysBaw Sobala 07release/2.6:1eb1c2fd5d28: avcodec/imgconvert: Support non-planar colorspaces while padding [03:37:05 CEST] <cone-494> ffmpeg 03Luca Barbato 07release/2.6:b3d36aec756e: indeo2data: K&R formatting cosmetics [03:37:06 CEST] <cone-494> ffmpeg 03Luca Barbato 07release/2.6:b55b843cd992: indeo2: Fix banding artefacts [03:37:07 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:e1fb0a1dbc00: avcodec/resample: Remove disabled and faulty code [03:37:08 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:f2019a0db6ae: avcodec/mjpegenc_common: Store approximate aspect if exact cannot be stored [03:37:09 CEST] <cone-494> ffmpeg 03Ico Doornekamp 07release/2.6:42fc190ab051: avformat/rtpdec_jpeg: fix low contrast image on low quality setting [03:37:10 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:cb7809cc4d6b: avcodec/libutvideodec: copy frame so it has reference counters when refcounted_frames is set [03:37:11 CEST] <cone-494> ffmpeg 03Aaron Boxer 07release/2.6:6ec961197138: avcodec/j2kenc: Add attribution to OpenJPEG project: [03:37:12 CEST] <cone-494> ffmpeg 03Marios Titas 07release/2.6:6a60de92b22c: avfilter/src_movie: fix how we check for overflows with seek_point [03:37:13 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:036d049fb1f2: avcodec/bmp_parser: Ensure remaining_size is not too small in startcode packet crossing corner case [03:37:14 CEST] <cone-494> ffmpeg 03Ivan 07release/2.6:f3ec2a0859f0: avcodec/h264: Fix for H.264 configuration parsing [03:37:15 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:e49d142fc0df: avcodec/avpacket: Fix off by 5 error [03:37:16 CEST] <cone-494> ffmpeg 03Paul B Mahol 07release/2.6:945899864aa2: avcodec/apedec: fix decoding of stereo files with one channel full of silence [03:37:17 CEST] <cone-494> ffmpeg 03Paul B Mahol 07release/2.6:17e7cb98be90: avcodec/takdec: add code that got somehow lost in process of REing [03:37:18 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:987082ff9138: avfilter/vf_drawtext: Check return code of load_glyph() [03:37:19 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:542cc06c649b: avcodec/ac3dec: Reset SPX when switching from EAC3 to AC3 [03:37:20 CEST] <cone-494> ffmpeg 03Jan Ekström 07release/2.6:19fcdd0c2f4c: pgssubdec: fix subpicture output colorspace and range [03:37:21 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:72d8ce1cf276: avcodec/ttaenc: Reallocate packet if its too small [03:37:22 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:c57ebf6809e3: avformat/ffmdec: Check pix_fmt [03:55:58 CEST] <cone-494> ffmpeg 03Michael Niedermayer 07release/2.6:2ea09e56cc84: Update for 2.6.9 [09:42:33 CEST] <kurosu> So, I was looking at the new bitstream API patchset, and they seem to force the replacing of golomb code reading - ie all users must be converted before the code compiles [09:43:06 CEST] <kurosu> A possible hack to alleviate this would be to make a "golomb_bc.h" copy of golomb.h, then apply instead the change to the former file [09:43:47 CEST] <kurosu> my problem: history can't show who wrote what and when stuff was changed (basically, there's no history) [09:44:01 CEST] <kurosu> I really wish git had a cp method [11:55:06 CEST] <nevcairiel> kurosu: maybe you should bring that up, it doesnt seem like an outrageous demand to once be able to migrate in steps instead of forcing a full conversion in one commit [11:56:15 CEST] <kurosu> nevcairiel, I would even dare asking a porting guide, but then I fear someone may reply with "what for? libav has converted all of its code" [13:01:14 CEST] <Daemon404> kurosu, indeed [13:36:01 CEST] <cone-335> ffmpeg 03Carl Eugen Hoyos 07master:a2810d03b9fb: configure: Add pixelutils dependency for framerate filter. [15:03:59 CEST] <jsebechlebsky> Hi, in old bitstream API AVBitStreamContext contains pointer to next AVBitStreamContext structure used when there are several filter to be applied. In new AVBSFContext structure however such field is missing, is priv_data field meant to be used for that? [16:09:00 CEST] <cone-335> ffmpeg 03Michael Niedermayer 07release/2.7:4621bc436bea: avformat/ffmdec: Check pix_fmt [16:09:01 CEST] <cone-335> ffmpeg 03Michael Niedermayer 07release/2.7:0ca22536c7d7: Update for 2.7. [17:24:02 CEST] <durandal_1707> saste: when new meeting will happen? [17:24:41 CEST] <cone-335> ffmpeg 03Carl Eugen Hoyos 07n2.7.7:HEAD: configure: Add pixelutils dependency for framerate filter. [17:24:56 CEST] <saste> durandal_1707, don't know, do you want to organize a new meeting? [17:25:11 CEST] <saste> it's not like I'm very involved with ffmpeg stuff [17:26:25 CEST] <durandal_1707> saste: what's needed to organize new meeting? [17:26:57 CEST] <saste> durandal_1707, you simply propose a date, at least two week earlier than the event, and ask people to provide an agenda [17:27:29 CEST] <saste> usually saturday afternoon is OK, so also people from US west-coast can easily join [17:52:28 CEST] <cone-335> ffmpeg 03Peter Ross 07master:10d48c63b2a7: avformat: add Wideband Single-bit Data (WSD) demuxer [17:52:29 CEST] <cone-335> ffmpeg 03Paul B Mahol 07master:d171cd076f61: avformat/dsfdec: check if number of channels is <= 0 [18:11:21 CEST] <cone-335> ffmpeg 03Paul B Mahol 07master:675cfb2f86a0: avformat/iff: fix deadlock in parsing dsd chunks [19:59:02 CEST] <cone-335> ffmpeg 03Paul B Mahol 07master:a67816bcce44: avcodec/wmalosslessdec: fix decoding of raw pcm tiles [22:19:13 CEST] <kurosu> the dirac/vc2 decoder never got submitted to libav? because basically sasshka can't test the issue I'm finding with her new bitstream API [22:21:59 CEST] <kurosu> that discussion is surely going to work out so well... [22:22:18 CEST] <JEEB> ouch [22:24:44 CEST] <wm4> lol [22:50:36 CEST] <nevcairiel> kurosu: i think they are in the process of porting the decoder, but they are very slow about such things [23:54:09 CEST] <hyponic> can any of the devs confirm that ffmpeg's m3u8 muxer removes the index teletext page. [23:54:53 CEST] <hyponic> from a ts stream [00:00:00 CEST] --- Sun May 1 2016

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ffmpeg.log.20160430
by burek 01 May '16

01 May '16

[06:34:14 CEST] <prelude2004c> hey guys.. good evening.. what am i doing wrong here. [06:34:15 CEST] <prelude2004c> http://pastebin.com/GtYhqWMf [06:35:35 CEST] <prelude2004c> the basic idea is this.. i want to list all the media files in a folder.. shuffle them ... play one by one randomly forever... while the output .. never stop the segment.. what is happening right now is.. after a file is done, the segments start again from 0... basically i want the segment to keep going and i just want ffmpeg to keep spitting data at the segmenting [06:35:40 CEST] <prelude2004c> any ideas ? [07:33:13 CEST] <pinPoint> is ffmpeg faster than handbrake? [07:33:48 CEST] <pinPoint> in transcoding/encoding of x264/x265? [07:37:20 CEST] <pinPoint> or does handbrake use ffmpeg [10:27:48 CEST] <Fyr> guys, if I need to cut a few pices into one video, will the following work: [10:27:48 CEST] <Fyr> ffmpeg -i input.mp4 -ss 0:10:0 -t 30 -ss 0:19:10 -t 10 -c:v copy -c:a copy 1.mkv [10:27:48 CEST] <Fyr> ? [11:33:26 CEST] <nobirthanthou> hi [11:34:11 CEST] <noobierthanthou> hi [11:34:54 CEST] <noobierthanthou> is there anyone out there who wants to help a noob ? [11:36:29 CEST] <Fyr> me [11:36:39 CEST] <Fyr> but I'm a noob too. [11:36:49 CEST] <Fyr> maybe, even noobier than you. [11:37:07 CEST] <Fyr> let's compare our noobility. [11:37:39 CEST] <Fyr> *noobship [11:40:40 CEST] <pzich> noobierthanthou: this generally isn't a very active time for the chanel, but you're best bet is to share the command you're running and it's full output in a paste [15:02:09 CEST] <qvAc> how do i do if i want to convert by this, but in bitrate 160, but from any? ffmpeg -i input.wav -c:a libfdk_aac -b:a 128k output.m4a ? [15:02:15 CEST] <qvAc> https://trac.ffmpeg.org/wiki/Encode/AAC [15:09:59 CEST] <pzich> qvAc: the -b:a flag sets the bitrate, so I think you want -b:a 160k? [15:11:25 CEST] <qvAc> yes [15:11:40 CEST] <qvAc> got this recently? Unknown encoder 'libfdk_aac' [15:11:44 CEST] <qvAc> pzich: [15:11:56 CEST] <furq> you won't have libfdk_aac unless you built ffmpeg yourself [15:12:10 CEST] <furq> if you have a recent ffmpeg version then use -c:a aac [15:12:28 CEST] <qvAc> well i used the windows static one [15:12:43 CEST] <furq> yeah that doesn't have fdk [15:12:59 CEST] <qvAc> do ihave to download it manually? and add? [15:13:07 CEST] <furq> no you'd need to recompile ffmpeg with it [15:13:14 CEST] <furq> or just use the builtin aac encoder [15:13:32 CEST] <qvAc> ? :S [15:13:45 CEST] <furq> 14:12:10 ( furq) if you have a recent ffmpeg version then use -c:a aac [15:14:50 CEST] <qvAc> what is the recent furq ? [15:15:03 CEST] <furq> anything newer than 3.0 [15:15:32 CEST] <qvAc> ffmpeg version N-79585-g268b5ae ? [15:15:37 CEST] <qvAc> does that says anything? [15:15:38 CEST] <furq> i'm not looking that up [15:15:42 CEST] <furq> just run it and see if it works [15:16:52 CEST] <qvAc> wow thanks seems to work :D [15:17:09 CEST] <qvAc> furq: and pzich, thanks for the help :) [15:48:02 CEST] <Prelude2004c_Zzz> hey guys.. i need a bit of help with somethign [15:48:40 CEST] <Prelude2004c_Zzz> http://pastebin.com/raw/qwRPXZgz [15:49:02 CEST] <Prelude2004c_Zzz> how do i do it where the input keeps looping the files without closing the output.. issue right now is that the segmens start at 0 everytime a file changes [15:56:36 CEST] <c_14> You're probably going to have to use the concat demuxer or similar [16:11:20 CEST] <__jack__> can I encode a file using the same codecs, same streams, but differents per-codecs params, in two outfiles, in the same run ? I would like to grab the input, and output a fullHD and a SD [16:12:12 CEST] <furq> __jack__: -c:v libx264 -s 1920x1080 out1.mp4 -c:v libx264 -s 800x480 out2.mp4 [16:13:25 CEST] <__jack__> awesome ! [16:13:42 CEST] <__jack__> furq: can I control "shared" options ? say, I want the same params for audio [16:14:02 CEST] <furq> you have to specify all the params for each output file [16:14:33 CEST] <furq> there's probably some fancy way to avoid doing that but it'll end up being more complicated than just duplicating the params [16:14:59 CEST] <__jack__> ok, thx :) [16:15:47 CEST] <__jack__> btw, just tested the last ffmpeg code from 3.0, and the aac encoder that someone talked about (maybe c_14 ?), looks awesome ! I will probably drop libfdk_aac [16:16:25 CEST] <furq> fdk is probably better (pending a proper listening test) but it's debatable whether it's worth compiling your own ffmpeg binaries for it any more [16:16:43 CEST] <furq> if you're building your own ffmpeg anyway then i'd stick with fdk [16:17:12 CEST] <__jack__> I do, but I want to stop that [17:35:57 CEST] <Pericles> there's a video of a length 2:41:46. there is some scene A at 0:53, how can i change the video such that the scene A occurs instead on 0:34? [17:36:05 CEST] <Pericles> shortening the video seems to be the option but how? [17:42:08 CEST] <sfan5> Pericles: you cut 19s from the beginning by doing ffmpeg -i video.avi -ss 19 video_cut.avi [17:42:31 CEST] <furq> that'll reencode [17:42:35 CEST] <sfan5> depending on the codec(s) you can try adding -c copy and see whether the cut is still accurate enough [17:42:39 CEST] <furq> yeah [17:43:11 CEST] <thebombzen> hey I have a question. how is rawvideo arranged? i.e. if I have ffmpeg dump rawvideo as yuv420p, is it a frame of Y, a frame of Cb, and a frame of Cr, or does it interleave them? [17:43:33 CEST] <JEEB> YCbCr, 4:2:0, planar [17:43:40 CEST] <thebombzen> planar? [17:43:45 CEST] <Pericles> sfan5; its a mp4 [17:43:46 CEST] <JEEB> so the planes are separate [17:43:50 CEST] <sfan5> rawvideo looks however the pixel format is [17:43:57 CEST] <sfan5> in this case yuv420p means what jeeb said [17:44:07 CEST] <thebombzen> oh okay. thanks [17:44:12 CEST] <sfan5> Pericles: the filenames were just an example [18:14:54 CEST] <thebombzen> what is the value range of the YCbCr that comes out of FFmpeg? [18:17:42 CEST] <c_14> Full or Limited, depending on the input and options passed [18:23:38 CEST] <JEEB> thebombzen: http://ffmpeg.org/doxygen/trunk/structAVFrame.html [18:23:49 CEST] <thebombzen> thanks [18:23:54 CEST] <JEEB> the color_range thing tells you what the range is [18:24:09 CEST] <JEEB> AVFrame is how you get your decoded pictures [18:31:00 CEST] <aletorrado> Hi! Anyone has tried NVIDIA NVENC (third gen.) for H264 encoding? [18:32:24 CEST] <c_14> I've experimented with it [18:33:26 CEST] <aletorrado> What about performance and quality? Is it good enough? [18:34:30 CEST] <c_14> The quality/bitrate/speed of x264 is better [18:34:45 CEST] <c_14> But if you really don't have any cpu time, go for it. [18:34:51 CEST] <c_14> It has its uses, generic encoding is not it [18:35:16 CEST] <aletorrado> Yeap I know, but I need to encode about 10 live streams in adaptive bitrates [18:35:34 CEST] <c_14> You can only encode a max of 2 streams per GPU anyways [18:35:39 CEST] <c_14> So there's no real point [18:35:50 CEST] <c_14> Getting a cpu/cpus is better [18:35:57 CEST] <aletorrado> That's for GeForce, but not Quadro [18:36:16 CEST] Action: c_14 has never tested with that [18:36:19 CEST] <aletorrado> Quadro doesn't have that limit [18:36:48 CEST] <aletorrado> I know, anyways it's the same GPU [18:37:28 CEST] <aletorrado> Which GeForce card have you used? Do you have any reference of settings&FPS? [18:48:43 CEST] Action: c_14 can't remember. Was a while ago. [20:46:10 CEST] <flux> how about power-wise? [20:46:25 CEST] <flux> I guess it depends on your CPU. [20:46:35 CEST] <flux> unless it takes very little on GPU?-o [20:49:15 CEST] <pigoz> 1 [20:49:26 CEST] <pigoz> sorry [23:48:34 CEST] <hyponic> it seems that ffmpeg's m3u8 muxer removes the index teletext page. can anyone confirm that? [00:00:00 CEST] --- Sun May 1 2016

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