September 2019 - ffmpeg-user - lists.ffmpeg.org

Smooth FPS change via ffmpeg
by RazrFalcon 24 Sep '19

24 Sep '19

Hi! I have a 240FPS video made by GoPro and I'm looking for a way to gradually change a video framerate. If I want to simply slow down a video I can use: ffmpeg -i raw.mp4 -filter_complex "[v:0]setpts=8*PTS" -r 30 out.mp4 and it works fine. But when I'm trying to use a "variable" framerate like this: ffmpeg -i raw.mp4 -filter_complex "[v:0]setpts='lerp(2,8,T/5)*PTS'" -r 30 out.mp4 (5 is a video duration in seconds) the resulting video stutters a lot. Is there are a correct way to smoothly change the framerate using some curve/function? Thanks.

6 12

video streaming using rtsp link over global network on my web application
by Vijay Prajapati 24 Sep '19

24 Sep '19

Dear ffmpeg team, Greetings !! I am building an web application that requires to stream a recorded/live video over the global network. I purchased an IP camera(GV-AVD4710) and NVR(GV-SNVR0811) for our application. I need help here in two type of application, With NVR and without NVR. In Camera With NVR, I have connected the NVR in our local network and the camera at channel_1 of NVR. Now the lets assume NVR is getting an IP of 192.168.1.203. So for rtsp streaming URL for channel_1 will be "rtsp://id:password@192.168.1.203:554/ch1" as per manufacturer's specification. For camera streaming I am using "ffmpeg" multimedia framework(https://github.com/xpcrts/Steaming-IP-Camera-Nodejs ). So it is working fine. I tested it and working well in local network. When I made this IP address live (means made it available on public domain), and then the problem begins. It is not working and giving an error: "[tcp @ 0x563911f0a340] Connection to tcp://192.168.1.205:554?timeout=0 failed: Connection timed out rtsp://admin:admin@192.168.1.205: Connection timed out RTSP stream exited with error" In Camera Without NVR, I connected camera directly to our local network and so got an rtsp url like rtsp:// id:password@192.168.1.205/media/video1. Same happens again. Works well in local, but not working when I am making this live. How can stream video over global network? Is it possible to implement these logic using ffmpeg multimedia framework? I have attached my application diagram, codes and error snapshots in below attached file. It would be appreciated if you can guide me in my application. Thanks & Regards, Vijay Prajapati Embedded Firmware Engineer | Teksun Microsys Pvt Ltd Web : www.teksun.in | USA: +1 405 404 4162 Direct : +91 851136755 | India : +91 7923299559 ISO 9001:2015 Certified Company | Product Design Engineering | Hardware| Firmware | Application Software | Cloud | Web | Mobile | IoT |Big Data | AI | Prototype | Production | Feasibility Study | Research | Product Roadmap | Automotive | Wearable | Tracking | Healthcare | Semiconductor | Embedded The content of this email is confidential for the recipient specified in message only. It is strictly forbidden to share any part of this message with any part of this message with any third party without consent of the sender. If you received this message by mistake, please reply to this message and follow with its deletion, so that we can ensure such a mistake does not occur in the future.

1 0

HLS download DTS problem
by Enrico Vittorini 24 Sep '19

24 Sep '19

Hello Gents, i am trying to download an HLS stream and make it as TS output. but i have many erorr related to DTS and PTS. Can you help me? ffmpeg -i https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/bip… -map 0:p:1 -an -c:v copy testhlsall3.ts ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 9.1.1 (GCC) 20190807 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt libavutil 56. 31.100 / 56. 31.100 libavcodec 58. 54.100 / 58. 54.100 libavformat 58. 29.100 / 58. 29.100 libavdevice 58. 8.100 / 58. 8.100 libavfilter 7. 57.100 / 7. 57.100 libswscale 5. 5.100 / 5. 5.100 libswresample 3. 5.100 / 3. 5.100 libpostproc 55. 5.100 / 55. 5.100 [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Skip ('#EXT-X-VERSION:3') [https @ 0000026ea4b90ec0] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Skip ('#EXT-X-VERSION:3') [https @ 0000026ea4b90ec0] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Skip ('#EXT-X-VERSION:3') [https @ 0000026ea4b90ec0] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Skip ('#EXT-X-VERSION:3') [https @ 0000026ea4b90ec0] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Skip ('#EXT-X-VERSION:3') [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [hls @ 0000026ea4b88e80] Opening 'https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3/gea…' for reading [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=903000, dts=906000, size=525 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=903000, dts=906000, size=1077 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=903000, dts=906000, size=1445 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=903000, dts=906000, size=2549 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=903000, dts=906000, size=595 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=909000, dts=912000, size=525 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=903000, dts=906000, size=1078 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=909000, dts=912000, size=1445 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=903000, dts=906000, size=1434 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=909000, dts=912000, size=2181 [hls @ 0000026ea4b88e80] Invalid timestamps stream=6, pts=903000, dts=906000, size=2521 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=909000, dts=912000, size=3653 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=909000, dts=912000, size=503 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=915000, dts=918000, size=525 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=909000, dts=912000, size=1353 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=915000, dts=918000, size=1261 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=909000, dts=912000, size=2147 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=915000, dts=918000, size=1997 [hls @ 0000026ea4b88e80] Invalid timestamps stream=6, pts=909000, dts=912000, size=3647 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=915000, dts=918000, size=3285 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=915000, dts=918000, size=434 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=921000, dts=924000, size=525 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=915000, dts=918000, size=1260 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=921000, dts=924000, size=1261 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=915000, dts=918000, size=1963 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=921000, dts=924000, size=1629 [hls @ 0000026ea4b88e80] Invalid timestamps stream=6, pts=915000, dts=918000, size=3314 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=921000, dts=924000, size=2733 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=921000, dts=924000, size=456 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=927000, dts=930150, size=525 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=921000, dts=924000, size=1211 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=927000, dts=930150, size=1261 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=921000, dts=924000, size=1698 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=927000, dts=930150, size=2365 [hls @ 0000026ea4b88e80] Invalid timestamps stream=6, pts=921000, dts=924000, size=2692 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=927000, dts=930150, size=3653 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=927000, dts=930150, size=428 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=933150, dts=936150, size=525 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=927000, dts=930150, size=1271 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=933150, dts=936150, size=1077 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=927000, dts=930150, size=2242 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=933150, dts=936150, size=1445 [hls @ 0000026ea4b88e80] Invalid timestamps stream=6, pts=927000, dts=930150, size=3658 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=933150, dts=936150, size=2733 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=933150, dts=936150, size=472 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=939150, dts=942150, size=525 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=933150, dts=936150, size=1059 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=939150, dts=942150, size=1261 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=933150, dts=936150, size=1476 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=939150, dts=942150, size=1997 [hls @ 0000026ea4b88e80] Invalid timestamps stream=6, pts=933150, dts=936150, size=2662 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=939150, dts=942150, size=3469 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=939150, dts=942150, size=506 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=945150, dts=948150, size=341 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=939150, dts=942150, size=1381 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=945150, dts=948150, size=709 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=939150, dts=942150, size=2119 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=945150, dts=948150, size=1445 [hls @ 0000026ea4b88e80] Invalid timestamps stream=6, pts=939150, dts=942150, size=3560 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=945150, dts=948150, size=2365 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=945150, dts=948150, size=425 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=951150, dts=954150, size=525 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=945150, dts=948150, size=829 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=951150, dts=954150, size=1261 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=945150, dts=948150, size=1420 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=951150, dts=954150, size=1997 [hls @ 0000026ea4b88e80] Invalid timestamps stream=6, pts=945150, dts=948150, size=2434 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=951150, dts=954150, size=3285 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=951150, dts=954150, size=470 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=957150, dts=960150, size=525 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=951150, dts=954150, size=1303 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=957150, dts=960150, size=1261 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=951150, dts=954150, size=1981 [mpegts @ 0000026ea5d98640] Invalid timestamps stream=0, pts=957150, dts=960150, size=2181 [hls @ 0000026ea4b88e80] Invalid timestamps stream=6, pts=951150, dts=954150, size=3378 [mpegts @ 0000026ea6b65080] Invalid timestamps stream=0, pts=957150, dts=960150, size=3653 [hls @ 0000026ea4b88e80] Invalid timestamps stream=0, pts=957150, dts=960150, size=418 [mpegts @ 0000026ea5459a40] Invalid timestamps stream=0, pts=963150, dts=966150, size=525 [hls @ 0000026ea4b88e80] Invalid timestamps stream=2, pts=957150, dts=960150, size=1207 [mpegts @ 0000026ea5a7dfc0] Invalid timestamps stream=0, pts=963150, dts=966150, size=893 [hls @ 0000026ea4b88e80] Invalid timestamps stream=4, pts=957150, dts=960150, size=2316

1 0

Measuring individual image components
by Elliott Balsley 24 Sep '19

24 Sep '19

Does ffmpeg have any capability to separate image components for analysis? For example, given a JPEG2000 image encoded as xyz12le, I want to find out the size of each of the three components in Bytes. I could not find anything about this in the documentation, so I'm guessing this is not possible, just wanted to be sure. Thanks

1 0

Licensing ffmpeg
by kushal ghosh 23 Sep '19

23 Sep '19

Hello, I want to use ffmpeg.exe for a commercial purpose. Please update me with the steps so that I dont violate the licensing obligations. I went through the site but seemed a bit confusing. Do I need to build ffmpeg without -enable-gpl? Thanks

6 9

mp4 opus invalid extradata size (missing header)
by Juan Navarro 23 Sep '19

23 Sep '19

Hi, I'm trying to record a plain RTP stream, both with GStreamer and with FFmpeg, with either H.264 or VP8 video codecs, and OPUS audio in all cases. I got this working for VP8+OPUS (WEBM) with GStreamer and FFmpeg, and H.264+OPUS (MP4) with GStreamer, but _not_ FFmpeg. After some testing I was able to isolate the issue to recording OPUS audio with FFmpeg into MP4 container (a somewhat uncommon combination I know, but afaik MP4 should be technically able to store OPUS, and it works great with GStreamer so it is definitely possible). FFmpeg is missing some extradata, and after the recording is done (after pressing 'q'), no moov or any other kind of header is written to the MP4 file. However, I guess there is actual OPUS audio in the file, as the file takes several 100s KB. FFmpeg version is today's Git master. Report logs, and input SDP files, are attached to this email (with full command line and output, as per the '-report' option). For example, trying to load the file with VLC 3.0.7 shows up this: VLC media player 3.0.7 Vetinari (revision 3.0.7-0-g86cee31) [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f12acc16500] invalid size 0 in stsd [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f12acc16500] error reading header TagLib: MP4: Invalid atom size Qt: Session management error: None of the authentication protocols specified are supported QApplication: invalid style override passed, ignoring it. [00007f12800049e0] mp4 demux error: MP4 plugin discarded (no moov,foov,moof box) [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f1280000c80] invalid size 0 in stsd [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f1280000c80] error reading header [00007f12800049e0] avcodec demux error: Could not open output.mp4: Unknown error 1094995529 TagLib: MP4: Invalid atom size For reference, these commands are used for my tests: WORKS ffmpeg \ -protocol_whitelist file,rtp,udp \ -fflags +genpts \ -i recording/input-vp8.sdp \ -map 0:a:0 -c:a copy \ -f webm -flags +global_header \ -y recording/output-ffmpeg-opus.webm WORKS gst-launch-1.0 --eos-on-shutdown \ filesrc location=recording/input-h264.sdp \ ! sdpdemux timeout=0 name=demux \ mp4mux name=mux ! queue \ ! filesink location=recording/output-gstreamer-opus.mp4 \ demux. ! queue \ ! rtpopusdepay \ ! opusparse \ ! mux. FAILS ("no moov" errors during playback) ffmpeg \ -protocol_whitelist file,rtp,udp \ -fflags +genpts \ -i recording/input-h264.sdp \ -map 0:a:0 -c:a copy \ -f mp4 -strict experimental \ -y recording/output-ffmpeg-opus.mp4 Relevant output (full log in attached files): Press [q] to stop, [?] for help # Press 'q' after some time recording... [mp4 @ 0x75d2580] invalid extradata size= 0.0kbits/s speed= 1.4x Error writing trailer of recording/output-ffmpeg-opus.mp4: Invalid data found when processing input The RTP transport is provided by a media server (mediasoup), but the actual encoded media comes straight from a Chrome WebRTC connection (mediasoup just receives it and relays as plain RTP). Do I need to add some '-flags', '-bsf', or '-movflags' to make this work? Juan

2 5

Unsync between Audio and Video and other Issues
by Rudolf Schmidt 23 Sep '19

23 Sep '19

Hi, I try to find a way to record my screen with income (mic) and outcome audio to record video calls with people I use the script: FILE="screencast$(date +%Y%m%d%H%M%S)" FFREPORT=file=/home/rs/screencasts/$FILE.log:level=32 \ ffmpeg \ -f pulse -ac 2 -ar 48000 -i alsa_output.pci-0000_0d_00.3.analog-stereo.monitor \ -f pulse -ac 2 -ar 48000 -i alsa_input.pci-0000_0d_00.3.analog-stereo \ -filter_complex amix=inputs=2 \ -thread_queue_size 65536 -f x11grab -s $(xdpyinfo|grep dimensions|awk '{print $2}') -framerate 30 -r 30 -i :0.0 \ -vcodec libx264 -preset veryfast -crf 18 -pix_fmt yuv420p \ -acodec libmp3lame -ac 2 -ar 48000 \ ~/screencasts/$FILE.mp4 Beside some weird warnings my major problem is that my audio sometimes become corrupt. After 1-2 minutes its start to be faster, but not always, depending on the length of the video file, but even it does not get shorter or kind of "compressed" it gets unsynced with the video. Sometimes even the video itself or the record of the screen becomes faster and it also lead to unsync with the audio. I do not know what is going on, its more than weird, tried to figure it out with people from #ffmpeg at freenode but not able to get to the bottom of the ground, assumed it could be a problem with pulseaudio. -- Best Regards, Mit freundlichen Grüßen, Rudolf Schmidt

5 8

Licensing fees
by iBlocker iBlocker 22 Sep '19

22 Sep '19

<ffmpeg-user(a)ffmpeg.org> Hello, In case a small company needs to include the ffmpeg into an application which runs on Raspbian, and probably will commercialize the Pi3/Pi4 device, I would like to know what will be the the "licensing fees" needed to be paid. Thank you. Emil Radu

3 3

How to re-initialize an audio encoder on input attributes change.
by Dennis Mungai 21 Sep '19

21 Sep '19

Hello there, Is it possible to restart an audio encoder on the CLI, such as aac and libfdk_aac when used with an input stream, say udp, whose audio stream attributes such as channel layouts and sample rates are liable to change over time? A point of reference would be the -reinit_filter 1 flag which re-initializes the filter chain should input attributes change. Is there such an option for audio encoders? And if so, how can this be achieved? Warm regards, Dennis.

1 1

ffmpeg nvenc without cuda
by Johanna Nilson 20 Sep '19

20 Sep '19

Dear Sirs Is it possible to use nvenc (h264_nvenc and hevc_nvenc) without cuda at all? Just now I get error that No cuda device detected, when use something like: ffmpeg -f gdigrab -i desktop -framerate 30 -tune zerolatency -r 30 -c:v h264_nvenc -f mpegts udp://... ffmpeg -f gdigrab -i desktop -framerate 30 -tune zerolatency -r 30 -c:v hevc_nvenc -f mpegts udp://... But my system has architecture where there is nvenc support, but no cuda support at all. So I need to perform encoding at nvenc without any requests to cuda cores. Please, tell me, is it possible? Thank you very much. -- Johanna Nilson

3 3