Re: [FFmpeg-user] Problems playing mjpeg stream at different bitrates

2018-09-18 8:44 GMT+02:00, Fabian Kurt : >> I tested the two streams you provided with vlc 3.0.4 and both >> behave exactly as with FFmpeg (which is generally expected). >> Did you test another version? > > But one of the files is working with FFplay, right? "Working" is not a strictly defined

Re: [FFmpeg-user] Problems playing mjpeg stream at different bitrates

2018-09-17 13:46 GMT+02:00, Fabian Kurt : >> Do the streams really work with other players? > > Yes, we tested our application for several months with a built-in > VLC player and it worked well. > VLC needs several attempts to start playing the stream but > then it works fine. I tested the two

Re: [FFmpeg-user] blocked domain

2018-09-17 15:36 GMT+02:00, Martin German : > our admin guys said that they aren't blocked any domain, so it is strange. Then feel free to get in contact with the videolan admins. Please do not top-post here, Carl Eugen ___ ffmpeg-user mailing list

Re: [FFmpeg-user] Zoom out/scale down dynamically

2018-09-17 16:37 GMT+02:00, astian : > Still, my original 'why' question remains. Why not directly > allowing zoom ratios < 1? padding is free compared to zoompan and zoompan wouldn't know what to show outside of the original video. (Paul may correct me here.) > Do I have to ask in

Re: [FFmpeg-user] DeckLink BlackMagic Micro 4K Studio RAW Capture

2018-09-17 14:26 GMT+02:00, Antonio Castles : > ffmpeg version N-89355-g9f9dfebeca Copyright (c) 2000-2017 the FFmpeg Please test current FFmpeg git head. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Reading Tempo/BPM information from audio files

2018-09-17 14:31 GMT+02:00, Adam Harries : > I've attached .txt files showing the output from running ffmpeg on an mp3 > file, and on an m4a file Instead of the metadata file please provide ffmpeg -i output, I find it easier to read. Please do not top-post here, Carl Eugen

Re: [FFmpeg-user] Can I get some help converting .sec files?

2018-09-17 7:56 GMT+02:00, LH : > Thanks, Carl, I will try to save a better video for converting so > you can see what I mean. The problem is that when I take the > .sec file and convert it to .mp4, the video is sped up, people > walking are in fast motion, for example. This is not unusual. > It

Re: [FFmpeg-user] Reading Tempo/BPM information from audio files

2018-09-17 13:24 GMT+02:00, Adam Harries : > I'm hoping to use ffmpeg as a generic, cross-platform, tool to read > metadata from audio files - specifically title and BPM information. > > From what I cant tell, ffmpeg easily supports this for mp3 files. The mp3 encoder you used wrote the BPM as a

Re: [FFmpeg-user] Problems playing mjpeg stream at different bitrates

2018-09-17 11:30 GMT+02:00, Fabian Kurt : > FFPlay is often not able to decode the stream. If we configure higher > bitrates of the camera output, FFplay is more often able to decode it but > not always. At lower bitrates <6Mbit/s it's mostly impossible to decode. > The main error occurring is:

Re: [FFmpeg-user] How to sync both audio and video to get correct output

2018-08-28 7:59 GMT+02:00, chetan goni : > I am issuing below command to get correct output but when i played > output.mkv , audio file quicker then video.it mean video is lagging behing > > * > ".//ffmpeg -i H264-media-3.264 -i G711ULAW-media-1.wav -c copy > output.mkv" * For how long is the

Re: [FFmpeg-user] Can I get some help converting .sec files?

2018-08-25 23:11 GMT+02:00, LH : > ffmpeg -i (name of file).sec -filter:v "setpts=3.3*PTS" (name of final > file).mp4 > > but the video loses quality and horizontal lines appear in it. I tested once again with the file you provided and I don't see any horizontal lines - neither when played with

Re: [FFmpeg-user] MXF with 8 audio channels to mp4 / h.264, matching audio channels

2018-09-14 23:28 GMT+02:00, Harvey Pikelberger : > ffmpeg version 4.0.1 Copyright (c) 2000-2018 the FFmpeg developers Please also test current FFmpeg git head (the only version supported here). Is the issue only reproducible with a specific sample or also if you use -f lavfi -i sine as input?

Re: [FFmpeg-user] how to specify pixel format of input image pixels

2018-09-14 21:03 GMT+02:00, Mayur Patel : > Photometric Interpretation: RGB color This indicates that your tiff is not yuv, see: https://www.awaresystems.be/imaging/tiff/tifftags/photometricinterpretation.html Carl Eugen ___ ffmpeg-user mailing list

Re: [FFmpeg-user] Max rtbufsize Via dshow

2018-09-14 18:26 GMT+02:00, Gabriel Balaich : > Errors displayed: > [dshow @ 01499bb17180] real-time buffer [Video (00 Pro Capture > HDMI 4K+)] [video input] too full or near too full (62% of > size: 214748 [rtbufsize parameter])! frame dropped! This indicates a performance issue... >

Re: [FFmpeg-user] Zoom out/scale down dynamically

2018-09-13 3:28 GMT+02:00, astian : > Carl Eugen Hoyos:> 2018-09-10 6:04 GMT+02:00, astian : >> >>> I want to dynamically (per frame) zoom out/scale down >>> a video below 100% size. >> >> Isn't it sufficient to pad first, and use zoompan in a later

Re: [FFmpeg-user] (no subject)

2018-09-13 18:32 GMT+02:00, Peter Gusev : > Video plays back correctly color-wise and size-wise. However > it "scrolls" vertically all the time Does this also happen if you only use ffplay? $ ffplay -f avfoundation -framerate 25 -pixel_format uyvy422 -i "0" Please test current FFmpeg git head.

Re: [FFmpeg-user] FFMPEG failing in AWS Lambda

2018-09-13 8:05 GMT+02:00, Zaid Amir : >> Every video file or only certain types? > > I am only interested in H264 encoded I don't know if the issue is the file reading or the demuxer, feel free to test a few different file types like avi, asf, mov, mpegts. > files which I have so far tried

Re: [FFmpeg-user] Piping FFMPEG out makes loosing file duration

2018-09-13 11:35 GMT+02:00, Jonathan Sillan : > ffmpeg -i myFile.mxf -vcodec copy -filter_complex > "[0:1:a]channelsplit[left1][right1];[left1]asplit=1[a1];[right1]asplit=1[a2]" > -map 0:v:0 -map "[a1]" -map "[a2]" -c:a:0 pcm_s24le -b:a:0 1152k -ar:0 48k > -c:a:1 pcm_s24le -b:a:1 1152k -ar:1

Re: [FFmpeg-user] FFMPEG failing in AWS Lambda

2018-09-12 16:27 GMT+02:00, Zaid Amir : >> What does not work? > > If I provide a valid video, it fails with the errors shown in > the logs from the original email. (And I assume the output is wrong, no?) Every video file or only certain types? Can you run "md5sum" on the target system? Carl

Re: [FFmpeg-user] capture from camera (macOS) and pass video to ffplay

2018-09-12 1:25 GMT+02:00, Peter Gusev : > Hi there! I need to capture video from a camera (macOS) and then pass it > through a file pipe to ffplay for displaying it. Can't figure out how to > specify ffmpeg's output pixel format. When passing -pix_fmt argb ffmpeg > says that the format is

Re: [FFmpeg-user] FFMPEG failing in AWS Lambda

2018-09-12 8:01 GMT+02:00, Zaid Amir : > Running ' ffmpeg -f lavfi -i testsrc2 -vframes 10 out%2d.jpg' > gives this output: Do the jpg files look as expected? What does not work? (Is it file input that is not working?) Carl Eugen ___ ffmpeg-user

Re: [FFmpeg-user] Zoom out/scale down dynamically

2018-09-10 6:04 GMT+02:00, astian : > I want to dynamically (per frame) zoom out/scale down > a video below 100% size. Isn't it sufficient to pad first, and use zoompan in a later filter? Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] FFMPEG failing in AWS Lambda

2018-09-11 16:17 GMT+02:00, Zaid Amir : > As I explained I tried both static and dynamic.. of course ldd > does not work on static binaries. ldd works fine on static binaries, it tells you that they are static binaries. The point is that in your original mail, you gave the impression that FFmpeg

Re: [FFmpeg-user] [ffmpeg] how to merge two slices from independent two video TS

2018-09-11 12:05 GMT+02:00, 杨阳 : > 1. merge 2 videos into 1 TS, I can do encoding if necessary, but > before encoding, how can i merge 2 videos TS without decode. This is not possible with FFmpeg, I doubt that it is possible at all. Please learn about quoting in emails and do it correctly.

Re: [FFmpeg-user] FFMPEG failing in AWS Lambda

2018-09-10 10:19 GMT+02:00, Zaid Amir : > Well its very likely I'm afraid. > > Below is the output when converting a single frame to jpg on my build > environment, this fails when run in Lambda. > > ffmpeg version N-91639-g85c0064 Copyright (c) 2000-2018 the FFmpeg > developers > built with gcc

Re: [FFmpeg-user] Cannot capture audio in screen recording

2018-09-10 8:25 GMT+02:00, Abhijit Nathwani : > I have been trying to record screen with audio using ffmpeg Command line and complete, uncut console output missing. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Some Videos Display Narrowed (Squared) Image

2018-09-10 17:17 GMT+02:00, Budge : > I have a set of Videos, most of which are quite old and in 4x3 format. > Even so, when playing on wide screen some videos are displayed correctly > with correct proportions and some are displayed with a narrower image so > that picture is virtually square and

Re: [FFmpeg-user] h.265 streaming to youtube

2018-09-08 12:28 GMT+02:00, Michael Shaffer : > c:\ffmpeg\bin\ffmpeg1.exe -re -rtsp_transport tcp -i "rtsp:// > admin:password@192.168.1.64:554" -f lavfi -f dshow -rtbufsize 2000M > -thread_queue_size 5096 -i audio="virtual-audio-capturer" -c:a libmp3lame > -ab 128k -ar 44100 -c:v copy -threads 0

Re: [FFmpeg-user] FFMPEG dynamic FrameRate Parameter with -c copy option

2018-09-07 7:36 GMT+02:00, Axit Soni : > I am converting my H264 data into MP4 file using -c copy option without > re-encoding. > > "*ffmpeg -i -c copy temp.mp4*" > > I don't know on which FrameRate my input "H264_input_fifo" is giving me data > means its varying based on some different

Re: [FFmpeg-user] ffmpeg compile error on ubuntu

2018-09-07 4:09 GMT+02:00, Remo Rayamajhi : > In the newest veraion of FFMPEG compilation it gives error on yasm , nasm (which is now recommendend) is - just as yasm - a small binary that you can put in /usr/local/bin (or anywhere else in your $PATH), it is needed since many years for FFmpeg

Re: [FFmpeg-user] Unusable audio after conversion

2018-09-06 20:37 GMT+02:00, ra...@gmx.ch : > I have a problem converting audio from PCM (s24be) stereo > to AAC (or anything youtube can use) in an mp4 container. (How is it possible that you are the third one in a little over a week to report a regression that's nearly twelve years old and

Re: [FFmpeg-user] ffmpeg compile error on ubuntu

2018-09-06 13:09 GMT+02:00, Remo Rayamajhi : > > Hello I m using ubuntu server 16.04 , I need to compile the ffmpeg . > > I tried to install it from > https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu I don't think so... > each time I got error > message on yasm nsam , libfdk , and now I m

Re: [FFmpeg-user] Concatenation of two file does not work correctly

> Am 06.09.2018 um 16:39 schrieb Cecil Westerhof : > My version: > ffmpeg version 3.2.12-1~deb9u1 Please test current FFmpeg git head and report back. Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] FFmpeg error when using "Mediacodec"

2018-09-05 12:07 GMT+02:00, Mohammed Bey Ahmed Khernache : > ./configure > --cross-prefix=/root/arm64-toolchains-r14b/bin/aarch64-linux-android- > --sysroot=/root/arm64-toolchains-r14b/sysroot/ --arch=aarch64 > --target-os=android > --extra-cflags="-I/root/libomxil-bellagio-0.9.3/include" >

Re: [FFmpeg-user] Non-monotonous DTS in output stream 0:1

2018-09-04 11:35 GMT+02:00, Mustafa Al Ani : > Hi, > > After applying the patch, it can't even find sources anymore. > > Here is the console output: > > ffmpeg -f libndi_newtek -find_sources 1 -i dummy -loglevel debug Then it's probably just wrong but feel free to post the console output without

Re: [FFmpeg-user] ffmpeg compilation error on libfdk_acc ubuntu16.04

2018-09-04 7:39 GMT+02:00, Remo Rayamajhi : > CC libavcodec/libfdk-aacenc.o > libavcodec/libfdk-aacenc.c: In function ‘aac_encode_init’: > libavcodec/libfdk-aacenc.c:293:34: error: ‘AACENC_InfoStruct {aka struct > }’ has no member named ‘encoderDelay’ For the moment, you have to downgrade

Re: [FFmpeg-user] Same binary and same command 1 byte difference first frame

2018-08-31 2:57 GMT+02:00, Andrew Sinclair : > Bit of a long shot here in case anyone may know, I am running the same > binary of ffmpeg on the same docker image on 2 different hosts and as a > result I get a different sized first I frame (out by 1 byte) between the 2 > hosts, anyone have any

Re: [FFmpeg-user] FFMPEG failing in AWS Lambda

2018-09-02 7:49 GMT+02:00, Zaid Amir : > Static builds of FFMPEG are failing in AWS lambda. This sounds very unlikely. Please at least provide the console output your binary produces on your build system and also "ldd ffmpeg" output. Carl Eugen ___

Re: [FFmpeg-user] Non-monotonous DTS in output stream 0:1

2018-09-01 20:18 GMT+02:00, Mustafa Al Ani : > In my setup I'm playing out NDI stream using decklink. everything > looks good and both the NDI and the decklink playout are very > stable.. but when the NDI stream stops and starts again later.. the > decklink starts giving Non-monotonous DTS in

Re: [FFmpeg-user] Custom seek

2018-09-03 13:25 GMT+02:00, Moritz Barsnick : > On Sat, Sep 01, 2018 at 01:30:56 +0200, Peter Wetz wrote: >> In ffplay the left/right arrows can be used to skip forward/back 10 >> seconds. Can I somehow create a custom shortcut (or replace >> the existing one) to skip only 5 or 3 seconds? > > The

Re: [FFmpeg-user] Can I get some help converting .sec files?

2018-08-25 23:11 GMT+02:00, LH : > Hi, I have a Samsung security system which saves video in the .sec format > which no other app can play. The Samsung SmartViewer app has developed > issues and is no longer updated/supported so, as a result, I cannot play > saved .sec files with it, either. So- I

Re: [FFmpeg-user] Problematic RTSP re-streaming

2018-08-27 23:16 GMT+02:00, George Andguladze : > If anybody stumbles upon the same issue as described in the previous replies > of this thread, know that I gave up trying to solve this problem using > ffmpeg and instead used GStreamer to re-stream the RTSP stream to HLS. After > long, painful

Re: [FFmpeg-user] Decklink output can't produce 1080i50

2018-08-29 12:59 GMT+02:00, Mustafa Al Ani : > ffmpeg -f libndi_newtek -i "MED-GW-01 (IO-ENC-01-NDI-01_VR)" -f > decklink 'DeckLink Duo (1)' > > ffmpeg version N-90713-g955fa23 Copyright (c) 2000-2018 the FFmpeg > developers > built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 20160609 >

Re: [FFmpeg-user] Windows build with decklink?

2018-08-28 20:42 GMT+02:00, James Darnley : > On 2018-08-28 18:38, Carl Zwanzig wrote: >> (top-posting corrected) >>> On Tue, 28 Aug 2018, 05:03 Carl Zwanzig, wrote: Are there any readily-available & recent windows builds with BMD decklink enabled? The 4.0.x builds from Zeranoe do

Re: [FFmpeg-user] ffmpeg video encryption

2018-08-28 12:31 GMT+02:00, RASIL KRISHNAN : > I tried a lot of ways to encrypt the video which I'm sending to a > link. I found a way to encrypt video using aes from stack overflow, the > link is >

Re: [FFmpeg-user] Conversion to mp4 without locking the video resolution

2018-08-27 16:38 GMT+02:00, Mayank Aggarwal : > Hi, > > I have a .webm recording of a mobile stream which has dynamic resolution > ie. the resolution changes from 640x480 to 480x640 in between when the user > changes the orientation of the mobile from portrait to landscape. > > When I convert this

Re: [FFmpeg-user] Problematic RTSP re-streaming

2018-08-24 17:50 GMT+02:00, George Andguladze : >> Did I already ask if it works with vlc? >> Or any other player? > > When opening the original RTSP stream with VLC the video > plays fine but the audio is heard in chunks - once every 2-3 > seconds there is approximately 0.3 seconds of audio

Re: [FFmpeg-user] Problematic RTSP re-streaming

2018-08-24 16:40 GMT+02:00, George Andguladze : > Hello, > > I apologize for posting this issue here again, as it has been discussed > before, but unfortunately the solution we came up with has not solved the > problem entirely. Here is the story: > > I have a RTSP stream coming from a Hikvision

Re: [FFmpeg-user] -t option in output parameter

2018-08-24 13:05 GMT+02:00, Axit Soni : > I have attached few logs in first post(edited) before already. I don't see them: http://ffmpeg.org/pipermail/ffmpeg-user/2018-August/041020.html Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] remap filter gives only black and white output

2018-08-24 17:26 GMT+02:00, Shaji stellaton : > So, I believe I will have to revert to version 3.3.2 Please provide at least command line and complete, uncut console output for current FFmpeg git head and 3.3.2 if you want to report a speed regression. Carl Eugen

Re: [FFmpeg-user] -t option in output parameter

2018-08-24 8:07 GMT+02:00, Axit Soni : > Whenever I am passing -t option in Output Parameter like, > *ffmpeg -r 30 -i -c copy -t 10 output.mp4* Complete, uncut console output missing. > I am expecting that my output.mp4 should have > "30 FPS * 10 Seconds = exact 300 Frames". but output.mp4

Re: [FFmpeg-user] transcoding example outdated?

2018-08-22 17:57 GMT+02:00, Jeroen Ooms : > I'm trying to write a small C program to convert a set of png files > into a video, but I'm having a hard time finding the right apis. > > I had a look at doc/examples/transcoding.c (ignoring the audio stuff) > but when I compile this example I get

Re: [FFmpeg-user] Decoding g726 audio

2018-08-22 15:28 GMT+02:00, איל חסון : > Can anyone show me a working example of how to decode a g726 file? What did you try? Command line and complete, uncut console output missing. > As there is no “g726” format, only codecs, all formats I tried > give errors when used with the g726 files.

Re: [FFmpeg-user] Remux to matroska an h264 track without timestamps

2018-08-22 12:59 GMT+02:00, Gabriele Greco : > I have some input TS with H264 payload that do not have timestamps > correctly set in the video streams (or at least ffmpeg complains about it), Yes, FFmpeg has known deficiencies with H.264 timestamps, this is difficult to fix. > Any information

Re: [FFmpeg-user] How to decode an HEVC content with Hardware video decoder using FFmpeg

2018-08-21 16:50 GMT+02:00, Mohammed Bey Ahmed Khernache : > I tried again. I used the option "--list-hwaccels" to get the list of > hardware decoders that FFmpeg can support. This is not what I suggested, look at configure's output (not configure --help output). Please do not top-post here,

Re: [FFmpeg-user] How to decode an HEVC content with Hardware video decoder using FFmpeg

2018-08-20 18:38 GMT+02:00, Mohammed Bey Ahmed Khernache : > ./configure > --cross-prefix=/root/arm64-toolchains-r14b/bin/aarch64-linux-android- > --sysroot=/root/arm64-toolchains-r14b/sysroot/ --arch=arm64 > --target-os=android --prefix="$HOME/ffmpeg_build" > --pkg-config-flags="--static"

Re: [FFmpeg-user] problem transcoding raw g729 to wav format

2018-08-20 19:20 GMT+02:00, ananth123 <86ana...@gmail.com>: > 302001014794094.wav > Thank you for the sample, I attached it to ticket #4553. As the console output tried to tell you, G.729 stereo is not supported, patch welcome!

Re: [FFmpeg-user] Recording MPEG-DASH live streams with FFmpeg

2018-08-20 11:07 GMT+02:00, Jörg Beckmann : > I'm trying to record MPEG-DASH live streams using FFmpeg 4.0.2, e.g. Only current FFmpeg git head is supported here. > ./ffmpeg.exe -v 40 -i > http://irtdashreference-i.akamaihd.net/dash/live/901161/bfs/manifestBR.mpd > -c:a copy test.aac For

Re: [FFmpeg-user] Packet mismatch 45 41 41

2018-08-20 14:29 GMT+02:00, Christian Schnellrieder : > Sample: > https://uplink.spdns.eu/s/bNWB3oKq9S6HtTx Thank you for the sample, I added it to ticket #6977. Workaround is to specify "-flv_ignore_prevtag 1". Carl Eugen ___ ffmpeg-user mailing list

Re: [FFmpeg-user] problem transcoding raw g729 to wav format

2018-08-20 16:32 GMT+02:00, ananth123 <86ana...@gmail.com>: > Where you able to solve it now. I am also stuck in the same place > that you have stated above . I have an Audio file in G729 format > with Caller on One channel and callee on the other. Was wondering > how to convert it into separate

Re: [FFmpeg-user] A question on NVENC's A53CC support

2018-08-17 14:01 GMT+02:00, Dennis Mungai : > According to this commit > https://git.videolan.org/?p=ffmpeg.git;a=commit;h=5a88e8c3 > , A53CC support was added to the NVENC encoder. > > For lavc, its' also enabled by default: > https://ffmpeg.org/pipermail/ffmpeg-devel/2016-September/199200.html

Re: [FFmpeg-user] Glitch when concat'ing two .MTS files using concat filter

2018-08-14 18:32 GMT+02:00, Joshua Grauman : > My camera automatically splits up video files at the 2 GB mark like I > think many cameras do. I use ffmpeg to combine them back using the concat > filter, which works, but there is a glitch for a fraction of a second > right at the break between the

Re: [FFmpeg-user] Need command line arguments to convert opus to wav from RTP packets

2018-08-16 13:46 GMT+02:00, chetan goni : > Please provide me command line arguments to convert opus to > wav from RTP packets? > i am using this but it giving error > > *.//ffmpeg -acodec libopus -ar 48000 -ac 2 -i audio.bin -f wav out.wav* > > *Here : audio.bin : RTP playload There is no

Re: [FFmpeg-user] Binary format of yuv444p

2018-08-15 12:35 GMT+02:00, Kirk Liberty : > Is yuv444p a planar format? Yes, the "p" stands for "planar" > And, is it row-major or column-major? Not sure I understand but all raw formats I have ever seen start with the pixel in the top left corner and contain one (horizontal) line after the

Re: [FFmpeg-user] Getting error "concealing 88 DC, 88 AC, 88 MV errors in I frame" when decoding H263+

2018-08-16 7:05 GMT+02:00, chetan goni : > When i ran below command > ".//ffmpeg -f h263 -i video.bin -f flv out.flv" > > here > *video.bin* : RTP playload Either video.bin is a valid raw h263 file, then you don't have to use "-f h263" (just as you don't need "-f flv") or it is not a valid raw

Re: [FFmpeg-user] crop values are incorrect and seemingly random

2018-08-16 19:36 GMT+02:00, acowbear : > Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), > yuv422p10le, 620x260 Does Windows 10 support yuv422p10? If not, there is a good chance the resolution cannot be read correctly. Carl Eugen ___

Re: [FFmpeg-user] video fps filter problem

2018-08-16 7:32 GMT+02:00, 홍석진 : > I uploaded it to my cloud drive. I opened ticket #7361, thank you for the report. Please try not to break threads (and do not top-post here), Carl Eugen ___ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org

Re: [FFmpeg-user] Metadata

2018-08-16 17:05 GMT+02:00, Andreas Lenhardt : > I would like to convert my YouTube videos to .flac and take the metadata > with me. For the conversion I use a batch script with the following command: > ffmpeg -i "%%f" -ab 320k -map_metadata:g:0 0:s:0 When asking for help on this mailing list,

Re: [FFmpeg-user] video fps filter problem

> Am 14.08.2018 um 11:42 schrieb 홍석진 : > > ​Hi. > ​ > I have something to discuss with you about vf_fps.c in FFmpeg 4. > ​ > When I tried to encode a video which has only one video frame, a encoded > video (result) had no video stream. > I used video fps filter to adjust fps from 25 to 12

Re: [FFmpeg-user] Regarding how to extracting video from RTPpackets using ffmpeg API or Source code

2018-08-09 14:40 GMT+02:00, chetan goni : > I have extracted RTP payload from RTP packets containing audio > and ran below command and got the audio file and played in vlc > > ffmpeg -f mulaw -ar 8000 -ac 1 -i Audio.bin output.wav > > But when i tried with video same procedure and it is giving

Re: [FFmpeg-user] buffer underflow - processing VOB files

2018-08-08 0:21 GMT+02:00, Bob DeCarlo : >>I sent out a google drive link. Let me know if this is OK. > > Just wondering if the video files were received or if I need to use > a different method to submit them? While this method is unorthodox and makes helping you needlessly difficult, the

Re: [FFmpeg-user] FFplay network stream with low latency

2018-08-06 3:41 GMT+02:00, Elliott Balsley : > I discovered an option in picamera python module to include the framerate in > the SPS headers, so now I will use that instead of raspivid. Plus it’s more > flexible, allowing for more advanced text overlays. > Now ffplay detects it correctly as 30

Re: [FFmpeg-user] FFplay network stream with low latency

2018-08-05 3:50 GMT+02:00, Elliott Balsley : > $ nc 192.168.3.172 8080 | /usr/local/bin/ffmpeg -r 5 -i pipe:0 > -analyzeduration 0 -probesize 32 -f h264 -an -c:v copy pipe:1 | > /usr/local/bin/ffplay -i pipe:0 This is just duplicating the latency. As said, the first thing to check is the actual

Re: [FFmpeg-user] FFplay network stream with low latency

2018-08-03 7:07 GMT+02:00, Elliott Balsley : > I’m trying to use ffplay with a network stream from netcat. > It’s raw h.264, 1280x720, 30fps. Are you sure about the framerate? If it really is 30fps and FFmpeg reports it as 25fps, then you need a filter chain to speed playback up, "-r" only works

Re: [FFmpeg-user] buffer underflow - processing VOB files

2018-08-02 20:47 GMT+02:00, Carl Zwanzig : > On 8/2/2018 11:39 AM, Paul B Mahol wrote: >> Without sample we can not help you. > > Sure 'we' can, an input sample isn't needed to review the patch. > (A sample is only needed to _test_ the patch.) This is not completely true. > (It really looks

Re: [FFmpeg-user] ffmpeg 4.0 fails to transcoding one 4k clip

2018-07-27 10:23 GMT+02:00, qw : > I use the following command, which reports error: > > ffmpeg -nostdin -y -hwaccel qsv -c:v h264_qsv -i src_AVC_4K.mp4 -b:a 8 > -ar 44100 -c:v h264_qsv -g 300 -profile:v high -preset veryfast -c:a > libfdk_aac -max_muxing_queue_size 4000 -b:v 17418000

Re: [FFmpeg-user] RTMP netstream commands

2018-08-01 17:10 GMT+02:00, bob johnson : > Hello! > > When I use ffmpeg to send an rtmp to stream to various platforms, it works > great. However, when the source stream ends it seems like ffmpeg > automatically sends the deleteStream netstream command referenced here >

Re: [FFmpeg-user] Trying to get lossless PNG -> VP9 (yuv) -> PNG

2018-08-01 21:24 GMT+02:00, Kirk Liberty : > On Wed, Aug 1, 2018 at 2:00 PM, Carl Eugen Hoyos wrote: >> 2018-08-01 6:12 GMT+02:00, Kirk Liberty : >>> On Tue, Jul 31, 2018 at 7:04 PM, Carl Eugen Hoyos >>> wrote: >>>> >>>> 2018-07-29 0:16

Re: [FFmpeg-user] (no subject)

2018-08-01 17:35 GMT+02:00, juan carlos rebate : > How could I edit video without reconverting this video? For example, > add a watermark This is (generally) impossible and not related to FFmpeg. Carl Eugen ___ ffmpeg-user mailing list

Re: [FFmpeg-user] Trying to get lossless PNG -> VP9 (yuv) -> PNG

2018-08-01 6:12 GMT+02:00, Kirk Liberty : > On Tue, Jul 31, 2018 at 7:04 PM, Carl Eugen Hoyos > wrote: >> >> 2018-07-29 0:16 GMT+02:00, Kirk Liberty : >> > My plan is to use the YCgCo >> > colorspace to get lossless conversion of rgb->yuv->rgb >&g

Re: [FFmpeg-user] FFPROBE reporting all I-Frames as Keyframes

2018-08-01 19:16 GMT+02:00, Edilson : > So, as the subject describes, FFPROBE analysis reports thatall I-Frames in a > TS file are keyframes. > > Running the same analysis on a professional MPEG-TS file analyzer,it shows > that the keyframes are in the interval of 2s, just as configured onthe >

Re: [FFmpeg-user] Wrong colors on yuv444p10le with full range encoding in DNDxHD

2018-07-30 3:30 GMT+02:00, Gonzalo Garramuño : > The DNDxHD mov file created in Nuke11: > > https://drive.google.com/file/d/1I5V4T9AMoIharSbmNbEIkhxpJolHDIBi/view?usp=sharing > > and shows up with wrong values in all programs that use ffmpeg Please provide a file that (only) shows the intended

Re: [FFmpeg-user] Trying to get lossless PNG -> VP9 (yuv) -> PNG

2018-07-29 0:16 GMT+02:00, Kirk Liberty : > My plan is to use the YCgCo > colorspace to get lossless conversion of rgb->yuv->rgb This conversion (may be lossless in theory but) is not lossless with FFmpeg, both x264 and libvpx-vp9 support encoding rgb which can be lossless. Carl Eugen

Re: [FFmpeg-user] Anyone having success capturing hours of 4k video, reliably and with low loss, using ffmpeg?

2018-07-26 1:01 GMT+02:00, Rafael Lima : > Teorically there is no limitation on ffmpeg that would make > it fail because of the long running time. I don't think this is entirely correct, I believe it depends on the specific parameters. Carl Eugen ___

Re: [FFmpeg-user] advice requested: getting buffer overruns on decklink input with multiple outputs

2018-07-30 20:28 GMT+02:00 Dave Rice : > frame= 2425 fps= 16 q=-0.0 Lq=-0.0 q=-1.0 size= 704241kB time=00:01:20.91 > bitrate=71299.5kbits/s dup=1 drop=0 speed=0.537x This means your system is not fast enough to encode the input stream in real-time. Please test the other prores encoder, tests

Re: [FFmpeg-user] ffmpeg demux into audio and video resets start_pts and start_time

2018-07-30 20:10 GMT+02:00 Mukund Manikarnike : > ffmpeg -y -i input.ts -acodec copy -vn output_audio.aac [...] > *Inspecting output audio* > > The same `ffprobe` command on `output_audio.aac` shows that the output aac > has invalid `codec_tag` and `codec_tag_string` as shown below. The >

Re: [FFmpeg-user] Outputting ffmpeg's tee muxer content to a named pipe

2018-07-26 22:04 GMT+02:00, Dennis Mungai : > [f=mp4:movflags=frag_keyframe+empty_moov] pipe:1 > test_channel.mp4" As explained elsewhere this would work if ffmpeg were a shell (implementing some posix standard) but ffmpeg is not a shell, the ">" is just part of the filename you provided. Carl

Re: [FFmpeg-user] Overlay filter has incorrect frame rate

2018-07-26 21:47 GMT+02:00, Brian C. Wiles : > I am trying to programmatically overlay This mailing list is for support questions using the command line tools (ffmpeg, ffplay), there is a mailing list for programmatic questions: http://ffmpeg.org/contact.html#MailingLists Carl Eugen

Re: [FFmpeg-user] How to compile ffmpeg on Android

2018-07-25 22:12 GMT+02:00, Mohammed Bey Ahmed Khernache : > ​> Should be fixed in current FFmpeg.​ > >> ​Could you precise what's being fixed in current FFmpeg? I believe it would be visible if you hadn't cut my email above. You can also see it here:

Re: [FFmpeg-user] Converting audio stream

2018-07-25 16:55 GMT+02:00, Jonathan Mallett : > We have been having an issue with transcoding a progressive wmv (with > multiple video and audio streams) into a progressive MP4. I have managed to > narrow down the issue to one of the auido streams in the file. Please provide an input sample.

Re: [FFmpeg-user] How to compile ffmpeg on Android

2018-07-13 21:10 GMT+02:00, Mohammed Bey Ahmed Khernache : >> > Of course, I added "-pie" option to allow running it on Android >> > Lollipop. >> >> Could you elaborate? >> The compiler by default generates binaries that do not run >> on Android? > > Yes, by default the compiler does not generate

Re: [FFmpeg-user] Top posting?

2018-07-25 18:57 GMT+02:00, Jim DeLaHunt : > On 2018-07-25 08:11, Carl Zwanzig wrote: > > > I'm not the list owner nor one of the ffmpeg developers, just a > long-time Internet user... > > I also am not the list owner, nor one of the ffmpeg developers, either. > I appreciate the effort which you,

Re: [FFmpeg-user] Colour metadata not preserved when re-encoding ProRes/mov to FFV1/mkv

2018-07-24 16:05 GMT+02:00, W M : > At the Irish Film Institute Film Archive, we are investigating the > technicalities of normalising ProRes materials to FFV1, the major issue > we've identified is that colour metadata "color primaries", "transfer > characteristics", "matrix coefficients" are

Re: [FFmpeg-user] multiple outputs to different processes

2018-07-22 1:50 GMT+02:00, Dragan Randjelovic : > It is about one input stream - mpets that has already been > muxed properly including metadata, that I want to multiply > and deliver to different processes I may misunderstand this sentence but if it means that FFmpeg should not mux your stream

Re: [FFmpeg-user] ffmpeg audio distortion using blackmagic

2018-07-19 9:41 GMT+02:00, Flumotion Support : > ffmpeg version N-86442-g8aa6060 Copyright (c) 2000-2017 the FFmpeg First step is to test current FFmpeg git head as there were changes in the blackmagic code iirc. Carl Eugen ___ ffmpeg-user mailing

Re: [FFmpeg-user] ffmpeg sends I frame only when starting process

2018-07-24 17:04 GMT+02:00, Federico Allegretti : > ffmpeg -video_size $RISOLUZIONE_video -f x11grab -i :0.0 -r 25 -i > $SORGENTE_audio_stream -c:v h264_omx -b:v $BITRATE_video -c:a aac -b:a > $BITRATE_audio -ac 2 -ar 44100 -f mpegts -vbsf h264_mp4toannexb >

Re: [FFmpeg-user] m3u8 live stream will not play in google chrome

2018-07-24 19:53 GMT+02:00, Micael Silva : > On Tue, Jul 24, 2018 at 8:14 AM, Anthony Griffiths > wrote: > >> I use ffmpeg on a centos 6 machine to create a live stream that goes >> to a centos 6 vps server running nginx. This is the command: >> >> ffmpeg -y -f mpegts -i /dev/dvb/adapter0/dvr0 -f

Re: [FFmpeg-user] multiple outputs to different processes

2018-07-21 0:35 GMT+02:00, Dragan Randjelovic : > I am using ffmpeg on Windows, [ffmpeg version N-91217-g2bd24d4a37] > > 1. How can I pipe output of ffmpeg without saving it to a file to three > different processes? > > 2. Is it possible to use encoded stream with different muxers ex. -f mpegts

Re: [FFmpeg-user] How to have ffmpeg use parallel processing when searching through a single video

2018-07-12 21:01 GMT+02:00, Abdirahman, Ahmed [VRACI] : > I am using ffmpeg to convert parts of a video (mp4) into images (png), but > the videos are very long (8 hours). Right now I have the code performing > this serially where once one ffmpeg command is done, it continues on to the > next one.

Re: [FFmpeg-user] Multi-Channel Audio Limitations?

2018-07-13 8:46 GMT+02:00, privatebrowser : > This is more of an open question about standards in general and what FFmpeg > can and cannot do. > > Is there a codec (that FFmpeg supports), that will allow me to combine a > series of audio files into a singular multi-channel file /that can exceed 8

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