May 2021 - ffmpeg-user - lists.ffmpeg.org

XDcam MXF wrong field order
by Bouke 18 May '21

18 May '21

Trying to make broadcast compliant (XDcam style) MXF files, but those fail on wrong field order, if the source is progressive. This used to work fine. (ffmpeg version 3.2.2 has no issues with this, and has done literally thousands of good / compliant files) FFmpeg always reports "top coded first (swapped))", and MediaInfo says: Scan order : Bottom Field First If I swap out -top 1 for -field_order tt it does not help at all. Now, it ’should’ not be an issue, except that Baton / pre baton scripts bitch about it, and the files get rejected. Bouke Stripped down line: (To indicate the problem, this will not make a compliant file, I know.) /Applications/ffmpeg -i /Volumes/Data/17-05-2021_14-34-56_1.mov -c:v mpeg2video -b:v 50000k -maxrate 50000k -bufsize 3835k -minrate 50000k -r 25 -flags +ilme+ildct -top 1 -pix_fmt yuv422p -profile:v 0 -level:v 2 -t 1 /Volumes/Data/interlacetest.mxf -y ffmpeg version 4.4-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2000-2021 the FFmpeg developers built with Apple clang version 11.0.0 (clang-1100.0.33.17) configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay libavutil 56. 70.100 / 56. 70.100 libavcodec 58.134.100 / 58.134.100 libavformat 58. 76.100 / 58. 76.100 libavdevice 58. 13.100 / 58. 13.100 libavfilter 7.110.100 / 7.110.100 libswscale 5. 9.100 / 5. 9.100 libswresample 3. 9.100 / 3. 9.100 libpostproc 55. 9.100 / 55. 9.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Volumes/Data/17-05-2021_14-34-56_1.mov': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf58.65.101 Duration: 00:00:15.20, start: 0.000000, bitrate: 276385 kb/s Stream #0:0: Video: prores (HQ) (apch / 0x68637061), yuv422p10le(tv, top coded first (swapped)), 1920x1080, 274850 kb/s, 25 fps, 25 tbr, 12800 tbn, 12800 tbc (default) Metadata: handler_name : VideoHandler vendor_id : FFMP encoder : Lavc58.117.101 prores timecode : 12:34:59:00 Stream #0:1: Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: handler_name : SoundHandler vendor_id : [0][0][0][0] Stream #0:2(eng): Data: none (tmcd / 0x64636D74), 0 kb/s Metadata: handler_name : TimeCodeHandler timecode : 12:34:59:00 Stream mapping: Stream #0:0 -> #0:0 (prores (native) -> mpeg2video (native)) Stream #0:1 -> #0:1 (pcm_s16le (native) -> pcm_s16le (native)) Press [q] to stop, [?] for help Output #0, mxf, to '/Volumes/Data/interlacetest.mxf': Metadata: major_brand : qt minor_version : 512 compatible_brands: qt encoder : Lavf58.76.100 Stream #0:0: Video: mpeg2video (4:2:2), yuv422p(tv, progressive), 1920x1080, q=2-31, 50000 kb/s, 25 fps, 25 tbn (default) Metadata: handler_name : VideoHandler vendor_id : FFMP timecode : 12:34:59:00 encoder : Lavc58.134.100 mpeg2video Side data: cpb: bitrate max/min/avg: 50000000/50000000/50000000 buffer size: 3835000 vbv_delay: N/A Stream #0:1: Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s (default) Metadata: handler_name : SoundHandler vendor_id : [0][0][0][0] encoder : Lavc58.134.100 pcm_s16le frame= 1 fps=0.0 q=0.0 size= 0kB time=00:00:00.16 bitrate= 0.0kbits/sframe= 24 fps=0.0 q=2.0 size= 5632kB time=00:00:00.96 bitrate=48059.7kbits/frame= 25 fps=0.0 q=1.6 Lsize= 6216kB time=00:00:00.96 bitrate=53043.7kbits/s speed=1.79x video:5986kB audio:188kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.681476%

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image2pipe to RTMP issues ("faster than realtime")
by Travis Skindzier 18 May '21

18 May '21

Hello, My goal is to stream to YouTube Live via RTMP as output, using the following 2 inputs: 1) Icecast audio stream... ffprobe output: Stream #0:0: Audio: mp3, 44100 Hz, stereo, fltp, 128 kb/s 2) Headless chrome startScreencast api which is recording a webpage. Based on my knowledge it appears Chrome sends roughly 10 FPS, but without being certain, I assume this frame rate could vary based on page load, etc. According to YouTube, these are the requirements for 720p @ 30: - Resolution: 1280x720 - CBR encoding - Bitrate Range: 1,500-4,000 Kbps - 2 second keyframe Issue #1) I’m getting the following error from YouTube currently: "Your encoder is sending data faster than realtime (you must send 1 second of video for each second)” This error is the primary issue I’m trying to solve, but I have listed several sub-issues that my intuition tell me MAY be wrong as well. My understanding of video/ffmpeg is not in my expertise, so there could be many gross inefficiencies or bad approaches in my command. I would gladly welcome any critiques or suggestions for any other issues that stand out that I’m not seeing. Issue #2) I remember reading somewhere that I may need to set an explicit framerate on the audio so it’s not “locked” to the video. Is this correct, and how would I do that? Issue #3) I have seen several examples of RTMP streaming explicitly setting -threads 0. Is this recommended for live/realtime streaming? If so, how do I input them into the command? Issue #4) I currently see that Chrome sends about 10 fps. My current implementation which I found is interpolating frames via a javascript loop. The solution seems very hacky and poorly written, and I’m wondering if there is a native way to do this in ffmpeg so that chrome can output 10 fps and ffmpeg can duplicate frames up to 30 fps. Issue #5) Any other glaring issues you see I would love to hear them. I essentially crafted this command as a golden retriever would play with a tennis ball. Below are my current flags (they are in exact order, but I added line breaks and comment headings for easier reading). Thank you! // input audio -thread_queue_size 1024 -i http://x.x.x.x/stream, // input video -thread_queue_size 1024 -f image2pipe -i - // output -framerate 30 -pix_fmt yuv420p -strict -2 -c:v libx264 -x264-params keyint=60 -preset veryfast -b:v 2500k -minrate:v 4000k -maxrate:v 4000k -bufsize:v 8000k -f flv rtmp://a.rtmp.youtube.com/live2/STREAM_KEY

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Re: [FFmpeg-user] Where are the list archives? [was: Re: RTMP stream from digital mic : interruptions]
by Jim DeLaHunt 17 May '21

17 May '21

On 2021-05-17 07:44, ckxkexing wrote: > hello, > Do you know is it possible to see all history mailing list ? Hello, ckxkexing, and welcome to the FFmpeg-user email list. I think what you are asking is, are the archives (past messages sent to the list, or "history") of the ffmpeg-user list available on the web? Answer: yes, at https://lists.ffmpeg.org/pipermail/ffmpeg-user/ . For instance, your question is in the archive at https://lists.ffmpeg.org/pipermail/ffmpeg-user/2021-May/052987.html There is general information about the ffmpeg-user list at https://ffmpeg.org/mailman/listinfo/ffmpeg-user . That page gives a way for you to subscribe to the list. Also, it looks like you sent your question to this list by replying to a message about a different topic. That is not the best way to do it. It is better to start off each new question with a new message to the list, using a new Subject: line. That is what I am doing here. There are more rules for good use of the FFmpeg lists at https://ffmpeg.org/contact.html#MailingLists . Does this answer your question? Best regards, and I wish you much success using FFmpeg. —Jim DeLaHunt

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h265 file from IP camera - audio stream
by Martin Woolley 17 May '21

17 May '21

Hello, I'm new to the world or video and audio encoding and would appreciate some guidance. I have an IP camera which allows me to configure it to record in either H265 or H264 format. The smartphone app used with the camera can play back video recordings that it makes and this includes the associated audio stream. But... I transfer these files by FTP to a Linux server so that I can both archive the files and view them using VLC or on DLNA devices like my TV (the Linux machine runs the Gebera media server). Unfortunately neither VLC or my media server/TV are able to play the H265 files from the IP camera, so I've been trying to convert them to an alternate format using ffmpeg. I've managed to produce an mp4 file which contains video I can play but the audio is missing. When I investigate the H265 file from the camera, ffprobe produces the following: ffprobe version N-102545-g59032494e8 Copyright (c) 2007-2021 the FFmpeg developers built with Apple clang version 12.0.0 (clang-1200.0.32.29) configuration: --enable-gpl --enable-libx265 --enable-libx264 libavutil 57. 0.100 / 57. 0.100 libavcodec 59. 1.100 / 59. 1.100 libavformat 59. 2.100 / 59. 2.100 libavdevice 59. 0.100 / 59. 0.100 libavfilter 8. 0.101 / 8. 0.101 libswscale 6. 0.100 / 6. 0.100 libswresample 4. 0.100 / 4. 0.100 libpostproc 56. 0.100 / 56. 0.100 [hevc @ 0x7fb0b2d0a100] Invalid NAL unit 40, skipping. Last message repeated 3 times [extract_extradata @ 0x7fb0b2d0a6c0] Invalid NAL unit 40, skipping. Last message repeated 3 times [hevc @ 0x7fb0b2d0a100] Invalid NAL unit 40, skipping. Last message repeated 511 times Input #0, hevc, from 'A210515_130559_130613.265': Duration: N/A, bitrate: N/A Stream #0:0: Video: hevc (Main), yuvj420p(pc, bt709), 2560x1920, 25 fps, 25 tbr, 1200k tbn This is the first time I've used ffprobe so I don't know what is usual but it seems odd that I can see a video stream reported but no audio stream. There is definitely audio because I can hear it when I play the file in the camera's smartphone app. This is the command I use to create the MP4 file: ffmpeg -loglevel quiet -y -i ${FILE} -map 0:v -c:v copy -bsf:v hevc_mp4toannexb /home/pi/work/raw.h265 < /dev/null 2> /de v/null I confess I copied this from a Stackoverflow post that I found. I'd really appreciate some advice. I'm happy to share a sample file if it would help. Thanks in anticipation -- Martin Woolley

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Re: [FFmpeg-user] RTMP stream from digital mic : interruptions
by ckxkexing 17 May '21

17 May '21

hello, Do you know is it possible to see all history mailing list ? 发自我的iPhone ------------------ Original ------------------ From: Yannick Barbeaux <ybarbeaux(a)gmail.com> Date: Mon,May 17,2021 10:41 PM To: FFmpeg user questions <ffmpeg-user(a)ffmpeg.org> Subject: Re: [FFmpeg-user] RTMP stream from digital mic : interruptions Hello I capture the audio from a digital mic (ICS-43434-FX) connected on the GPIO of a Raspberry Pi and send the signal through a RTMP stream to a RTMP server (node-media-server) running on a computer directly connected to the Raspberry : $ ffmpeg -ar 48000 -acodec pcm_s32le -ac 2 -f alsa -i dsnoop:CARD=sndrpii2scard,DEV=0 -f flv rtmp://$SERVER_IP/live/rpi it is working fine BUT there are multiple very short (~30-40ms) interruptions (silences) in the audio signal. During one test, I had one interruption every 30 seconds but during other tests, those silences were randomly distributed, sometimes they appear after 5 minutes or more. Note that I have to use the dsnoop (alsa) virtual device because if I use anything else (default, hw, plughw, sysdefault) the following error repeats every 3~4 seconds : [alsa @ 0x1dc4210] ALSA buffer xrun That cause glitches in the audio signal. That is another problem I face. Any idea of the cause of the problems described? More info on this issue, output of commands: pi@raspberrypi:~$ arecord -L null     Discard all samples (playback) or generate zero samples (capture) default:CARD=sndrpii2scard     snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0     Default Audio Device sysdefault:CARD=sndrpii2scard     snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0     Default Audio Device dmix:CARD=sndrpii2scard,DEV=0     snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0     Direct sample mixing device dsnoop:CARD=sndrpii2scard,DEV=0     snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0     Direct sample snooping device hw:CARD=sndrpii2scard,DEV=0     snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0     Direct hardware device without any conversions plughw:CARD=sndrpii2scard,DEV=0     snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0     Hardware device with all software conversions pi@raspberrypi:~$ ffmpeg -ar 48000 -acodec pcm_s32le -ac 2 -f alsa -i dsnoop  -f flv rtmp://10.1.6.1/live/rpi ffmpeg version 4.1.6-1~deb10u1+rpt1 Copyright (c) 2000-2020 the FFmpeg developers   built with gcc 8 (Raspbian 8.3.0-6+rpi1) [...]   libavutil      56. 22.100 / 56. 22.100   libavcodec     58. 35.100 / 58. 35.100   libavformat    58. 20.100 / 58. 20.100   libavdevice    58.  5.100 / 58.  5.100   libavfilter     7. 40.101 /  7. 40.101   libavresample   4.  0.  0 /  4.  0.  0   libswscale      5.  3.100 /  5.  3.100   libswresample   3.  3.100 /  3.  3.100   libpostproc    55.  3.100 / 55.  3.100 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, alsa, from 'dsnoop':   Duration: N/A, start: 1621261820.437978, bitrate: 3072 kb/s     Stream #0:0: Audio: pcm_s32le, 48000 Hz, stereo, s32, 3072 kb/s Stream mapping:   Stream #0:0 -> #0:0 (pcm_s32le (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help Output #0, flv, to 'rtmp://10.1.6.1/live/rpi':   Metadata:     encoder         : Lavf58.20.100     Stream #0:0: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 48000 Hz, stereo, s32p     Metadata:       encoder         : Lavc58.35.100 libmp3lame [out_0_0 @ 0x11a5e30] 100 buffers queued in out_0_0, something may be wrong. [libmp3lame @ 0x11994b0] Queue input is backward in time [flv @ 0x1198220] Non-monotonous DTS in output stream 0:0; previous: 160, current: 121; changing to 160. This may result in incorrect timestamps in the output file. [flv @ 0x1198220] Non-monotonous DTS in output stream 0:0; previous: 160, current: 145; changing to 160. This may result in incorrect timestamps in the output file. size=     955kB time=00:00:58.63 bitrate= 133.4kbits/s speed=   1x The "Non-monotonous DTS in output stream" warnings appear only at the beginning of the stream so I don't think this is the cause of the problem. Thanks. Yannick _______________________________________________ ffmpeg-user mailing list ffmpeg-user(a)ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-request(a)ffmpeg.org with subject "unsubscribe".

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RTMP stream from digital mic : interruptions
by Yannick Barbeaux 17 May '21

17 May '21

Hello I capture the audio from a digital mic (ICS-43434-FX) connected on the GPIO of a Raspberry Pi and send the signal through a RTMP stream to a RTMP server (node-media-server) running on a computer directly connected to the Raspberry : $ ffmpeg -ar 48000 -acodec pcm_s32le -ac 2 -f alsa -i dsnoop:CARD=sndrpii2scard,DEV=0 -f flv rtmp://$SERVER_IP/live/rpi it is working fine BUT there are multiple very short (~30-40ms) interruptions (silences) in the audio signal. During one test, I had one interruption every 30 seconds but during other tests, those silences were randomly distributed, sometimes they appear after 5 minutes or more. Note that I have to use the dsnoop (alsa) virtual device because if I use anything else (default, hw, plughw, sysdefault) the following error repeats every 3~4 seconds : [alsa @ 0x1dc4210] ALSA buffer xrun That cause glitches in the audio signal. That is another problem I face. Any idea of the cause of the problems described? More info on this issue, output of commands: pi@raspberrypi:~$ arecord -L null Discard all samples (playback) or generate zero samples (capture) default:CARD=sndrpii2scard snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0 Default Audio Device sysdefault:CARD=sndrpii2scard snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0 Default Audio Device dmix:CARD=sndrpii2scard,DEV=0 snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0 Direct sample mixing device dsnoop:CARD=sndrpii2scard,DEV=0 snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0 Direct sample snooping device hw:CARD=sndrpii2scard,DEV=0 snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0 Direct hardware device without any conversions plughw:CARD=sndrpii2scard,DEV=0 snd_rpi_i2s_card, simple-card_codec_link snd-soc-dummy-dai-0 Hardware device with all software conversions pi@raspberrypi:~$ ffmpeg -ar 48000 -acodec pcm_s32le -ac 2 -f alsa -i dsnoop -f flv rtmp://10.1.6.1/live/rpi ffmpeg version 4.1.6-1~deb10u1+rpt1 Copyright (c) 2000-2020 the FFmpeg developers built with gcc 8 (Raspbian 8.3.0-6+rpi1) [...] libavutil 56. 22.100 / 56. 22.100 libavcodec 58. 35.100 / 58. 35.100 libavformat 58. 20.100 / 58. 20.100 libavdevice 58. 5.100 / 58. 5.100 libavfilter 7. 40.101 / 7. 40.101 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 3.100 / 5. 3.100 libswresample 3. 3.100 / 3. 3.100 libpostproc 55. 3.100 / 55. 3.100 Guessed Channel Layout for Input Stream #0.0 : stereo Input #0, alsa, from 'dsnoop': Duration: N/A, start: 1621261820.437978, bitrate: 3072 kb/s Stream #0:0: Audio: pcm_s32le, 48000 Hz, stereo, s32, 3072 kb/s Stream mapping: Stream #0:0 -> #0:0 (pcm_s32le (native) -> mp3 (libmp3lame)) Press [q] to stop, [?] for help Output #0, flv, to 'rtmp://10.1.6.1/live/rpi': Metadata: encoder : Lavf58.20.100 Stream #0:0: Audio: mp3 (libmp3lame) ([2][0][0][0] / 0x0002), 48000 Hz, stereo, s32p Metadata: encoder : Lavc58.35.100 libmp3lame [out_0_0 @ 0x11a5e30] 100 buffers queued in out_0_0, something may be wrong. [libmp3lame @ 0x11994b0] Queue input is backward in time [flv @ 0x1198220] Non-monotonous DTS in output stream 0:0; previous: 160, current: 121; changing to 160. This may result in incorrect timestamps in the output file. [flv @ 0x1198220] Non-monotonous DTS in output stream 0:0; previous: 160, current: 145; changing to 160. This may result in incorrect timestamps in the output file. size= 955kB time=00:00:58.63 bitrate= 133.4kbits/s speed= 1x The "Non-monotonous DTS in output stream" warnings appear only at the beginning of the stream so I don't think this is the cause of the problem. Thanks. Yannick

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How to repair iPhone photos
by Ulf Zibis 16 May '21

16 May '21

Hi, I have some photos from a iPhone in HEIC format. Is there a chance, to convert them to a "normal" format? ffplay says: $ ffplay IMG_0416.HEIC ffplay version 4.2.4-1ubuntu0.1 Copyright (c) 2003-2020 the FFmpeg developers built with gcc 9 (Ubuntu 9.3.0-10ubuntu2) configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared WARNING: library configuration mismatch avcodec configuration: --prefix=/usr --extra-version=1ubuntu0.1 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared --enable-version3 --disable-doc --disable-programs --enable-libaribb24 --enable-liblensfun --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libtesseract --enable-libvo_amrwbenc 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 libavresample 4. 0. 0 / 4. 0. 0 libswscale 5. 5.100 / 5. 5.100 libswresample 3. 5.100 / 3. 5.100 libpostproc 55. 5.100 / 55. 5.100 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f2e54000bc0] moov atom not found0/0 IMG_0416.HEIC: Invalid data found when processing input nan : 0.000 fd= 0 aq= 0KB vq= 0KB sq= 0B f=0/0 -Ulf

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MP4-->JPG changes brightness?
by Steven Kan 15 May '21

15 May '21

I have 2 trail cameras pointing up and down my backyard trail, and they frequently capture awesome footage like this: https://www.youtube.com/watch?v=TYQj1fcSQJE <https://www.youtube.com/watch?v=TYQj1fcSQJE> You can actually hear her bonk him on the head!! Assembling these clips in Da Vinci Resolve allows me to visually align the clips exactly, but before I do that I need to generate still images from the first frames of TrailUp.mp4 and TrailDown.mp4, e.g. TrailUpStill.jpg and TrailDownStill.jpg, to fill in the timeline gap when one video needs to start earlier than the other. See the above video where the "downhill" timestamp doesn't start changing until a few seconds in. I’d been creating these stills on my Mac by opening the MP4s in QuickTime Player, copying the first frame, pasting into a new document in Preview, and saving as a JPG, which is all tedious manual labor. I thought maybe I could semi-automate this by doing this in ffmpeg: ffmpeg -i TrailDown.mp4 -vframes 1 TrailDownStill.jpg This works, but the resulting jpg looks slightly different than the jpg produced by Preview. The brightness is different. I also took a screen capture of QuickTime Player and exported that as a jpg, and it look almost exactly the copy/paste into Preview, and slightly unlike that produced by ffmpeg. When I sequence these files into Resolve, the jpg produced via Preview looks exactly like I’ve paused the MP4 (which is the effect I want), whereas the jpg produced by ffmpeg has a slightly different brightness than the video, so there’s a discontinuity when it’s sequenced: https://www.kan.org/pictures/TrailDownStillQTPreview.jpg <https://www.kan.org/pictures/TrailDownStillQTPreview.jpg> https://www.kan.org/pictures/TrailDown.mp4 <https://www.kan.org/pictures/TrailDown.mp4> https://www.kan.org/pictures/TrailDownStillffmpeg.jpg <https://www.kan.org/pictures/TrailDownStillffmpeg.jpg> https://www.kan.org/pictures/TrailDownStillQTScreenCap.jpg <https://www.kan.org/pictures/TrailDownStillQTScreenCap.jpg> Is there a flag I need to set in ffmpeg to get a jpg that looks like what Preview produces? Is this error related to my issue? "[swscaler @ 0x112d97000] deprecated pixel format used, make sure you did set range correctly” console output follows. Thanks! ffmpeg -i TrailDown.mp4 -vframes 1 TrailDownStill.jpg ffmpeg version N-100466-g29cef1bcd6-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2000-2020 the FFmpeg developers built with Apple clang version 11.0.0 (clang-1100.0.33.17) configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvmaf --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay libavutil 56. 62.100 / 56. 62.100 libavcodec 58.115.102 / 58.115.102 libavformat 58. 65.100 / 58. 65.100 libavdevice 58. 11.103 / 58. 11.103 libavfilter 7. 94.100 / 7. 94.100 libswscale 5. 8.100 / 5. 8.100 libswresample 3. 8.100 / 3. 8.100 libpostproc 55. 8.100 / 55. 8.100 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'TrailDown.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 creation_time : 2021-05-11T17:08:07.000000Z encoder : Lavf58.45.100 Duration: 00:00:08.06, start: 0.000000, bitrate: 6072 kb/s Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 2592x1944, 6140 kb/s, 20 fps, 20 tbr, 16k tbn, 32k tbc (default) Metadata: creation_time : 2021-05-11T17:08:07.000000Z handler_name : VideoHandler vendor_id : [0][0][0][0] Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 8000 Hz, mono, fltp, 15 kb/s (default) Metadata: creation_time : 2021-05-11T17:08:07.000000Z handler_name : SoundHandler vendor_id : [0][0][0][0] File 'TrailDownStill.jpg' already exists. Overwrite? [y/N] y Stream mapping: Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native)) Press [q] to stop, [?] for help [swscaler @ 0x112d97000] deprecated pixel format used, make sure you did set range correctly Output #0, image2, to 'TrailDownStill.jpg': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf58.65.100 Stream #0:0(und): Video: mjpeg, yuvj420p(pc, progressive), 2592x1944, q=2-31, 200 kb/s, 20 fps, 20 tbn (default) Metadata: creation_time : 2021-05-11T17:08:07.000000Z handler_name : VideoHandler vendor_id : [0][0][0][0] encoder : Lavc58.115.102 mjpeg Side data: cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A frame= 1 fps=0.0 q=16.1 Lsize=N/A time=00:00:00.05 bitrate=N/A speed=0.308x video:841kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

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FFplay turkey
by Bouke 15 May '21

15 May '21

When I run FFplay, and scale the window to something like 320x180, AND drag the top to something smaller than 150: On doubleclick, fullscreen Next doubleclick, window scales back, but vertical position is now at the bottom of the screen. When the small window is lower than 150 all is as expected. If the window is bigger (no clue how big it must be), it also does not happen. This does not happen when I use the fullscreen button, and doubleclick to get back to ’normal’ Happens on OSX / catalina, have not tested other OS’s Bouke

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problem streaming
by Juan carlos Rebate 14 May '21

14 May '21

Good night, I come to you because I no longer know where else I can go to solve a problem, I have followed all the documentation possible, but almost all of it is outdated (2008-2010 year) I want to make a transmission of an already recorded file, the problem is that I always get the same error although I shouldn't, the error is that it tells me it is av_interleaved_write_frame (): For ffmpeg it is also strange since it tells me that it is an unknown error, I have looked through google and there is no real solution to this, the only thing I receive is results from people who get this error but in programmatic mode, first I want to do it through http to see how it looks and if it is received well and then through a wowza rtmps server, in both cases I receive the same error the input is .\ffmpeg.exe -i prueba.mp4 -c:v libx264 -deinterlace -chunked_post 1 -seekable 1 -f mp4 -listen 1 http://myip:80

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