13 juin

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 21:43
  python ffmpeg not decoding text from webcam video frame - sar5050 Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to construct python script with ffmpeg command to capture a webcam, decode the text from the camera frame and stream the same through an RTSP stream. I am able to receive the streaming through the player, but text decoding is not happening with the following example code: Help is needed to understand the problem, whether it is a piping problem or any other mistake in the code. ffmpeg_cmd = ( "ffmpeg -f v4l2 -framerate 30 -video_size 1280x720 -i /dev/video0 -f alsa -i hw:0 -c:v libx264 -preset ultrafast -tune zerolatency -pix_fmt yuv420p -c:a aac -b:a 128k -f rtsp (...)
• 15:46
  Ffmpeg Error: Error opening output file .output_withsrt.mp4 - Priyanshu Tiwari Newest 'ffmpeg' Questions - Stack Overflow
  I'm building a video caption writer web app, for embedding subtitle in a video I'm using ffmpeg. But there is a error opening output file, everything is working fine in a cmd, but in VS Code it's not working. My code: import ffmpeg from "fluent-ffmpeg"; import NextRequest from "next/server"; ffmpeg.setFfmpegPath('C:\\\\ffmpeg\\\\bin\\\\ffmpeg.exe') export async function POST(req: NextRequest) try const videoWithSubtitlesPath = path.join( process.cwd(), "public", "subtitle_video.mp4" );  (...)
• 13:37
  How do I prevent an extended frame when suspending and resuming an ffmpeg process in C#? - this_is_a_display_name Newest 'ffmpeg' Questions - Stack Overflow
  I have a c# application where I have control of an ffmpeg (https://www.ffmpeg.org/) process. I am using it to capture video and audio, either from desktop or webcam. I am using code similar to the answer from this question (How to pause/resume ffmpeg video capture in windows from C# application) to suspend and resume the process. However, while suspended, the captured video extends the frame it was suspended on for the entire duration of the suspension. My arguments passed into the process: -f gdigrab -framerate 30 -i desktop -f dshow -i audio=\\"Stereo Mix (Realtek(R) Audio)\\" (...) -- https://www.ffmpeg.org/
• 13:18
  integrate ffmpeg with spring boot - Parkash Sbd Newest 'ffmpeg' Questions - Stack Overflow
  I have a react native app much like social media app.Users upload their photos and videos from that app .While uploading I wanna show processing sign with percent and I have RESTful api endpoints written in spring boot and wanna resize media(photos and videos).Is there any easy way to implement it.I have heard of ffmpeg but I don't know how to integrate it with spring boot. Thanks.
• 12:24
  Can ffmpeg read-only options be used via the command line? - Quppa Newest 'ffmpeg' Questions - Stack Overflow
  For example, ffmpeg's ebur128 filter has read-only (AV_OPT_FLAG_READONLY) export (AV_OPT_FLAG_EXPORT) options integrated, range, lra_low, lra_high, sample_peak and true_peak (source). Is there a way to get the output values for filter options like these when using the command line? My command line: ffmpeg -i test.mp3 -af ebur128=integrated:framelog=quiet -f null - Output (ffmpeg 7.0.1): [Parsed_ebur128_0 ⓐ 000001e0c2f27880] Unable to parse option value "integrated" as boolean Error applying option 'video' to filter 'ebur128': Invalid (...) -- ebur128 filter, source
• 09:28
  Adding subtitles to video using Laravel FFMpeg - Pieter van der Mullen Newest 'ffmpeg' Questions - Stack Overflow
  I've been trying to convert my console command to work with the Laravel FFMpeg package. The issue that I've been running into is that the available Filters are not really well documented. This is the Laravel code that is not working. The only part that does not work is the last addFilter part with the srt and font file. FFMpeg::fromDisk('local') ->open([$backgroundImage, $audioFile]) ->export() ->toDisk('local') ->addFilter(function (FrameFilters $filters) $filters->custom('scale=1920:1080'); )  (...)
• 08:35
  There is no data in the inbound-rtp section of WebRTC. I don't know why - qyt Newest 'ffmpeg' Questions - Stack Overflow
  I am a streaming media server, and I need to stream video to WebRTC in H.264 format. The SDP exchange has no errors, and Edge passes normally. These are the log debugging details from edge://webrtc-internals/. Both DTLS and STUN show normal status, and SDP exchange is also normal. I used Wireshark to capture packets and saw that data streaming has already started. The transport section (iceState=connected, dtlsState=connected, id=T01) also shows that data has been received, but there is no display of RTP video data at all. timestamp 2024/6/13 16:34:01 bytesSent (...) -- enter image description here
• 08:01
  Filter crop:default has an unconnected output - Ayaz Alavi Newest 'ffmpeg' Questions - Stack Overflow
  Following command giving Filter crop:default has an unconnected output error ffmpeg -i "Introduction_to_Urgent_Excellence.mp4" -filter_complex_script crop_filters.txt -acodec aac output_video.mp4 Below is the log file and crop filters https://qtext.io/dt50 https://qtext.io/ki7c -- https://qtext.io/dt50, https://qtext.io/ki7c
• 02:52
  Audio and video not lining up after ffmep extraction [closed] - sundrycode Newest 'ffmpeg' Questions - Stack Overflow
  I am doing a python script that cuts silence over particular words (whatever the user defines). I'm using Pydub and moviepy (both ffmeg). The problem is the audio and video don't line up. They are both the same length (a few milliseconds difference sometimes) and the farther into the video you go the more off they become. Thinking it could be a problem with either the cutting the silence into the audio or the way the video gets put back together, I tried just extracting the audio from the video (without editing the audio) and taking it into a video editing program. I (...)
• 01:21
  splitting video into shots with ffmpeg from within python - ludog Newest 'ffmpeg' Questions - Stack Overflow
  After some searching, the following command works to split my input video into shots, and save the first frame from each shot. ffmpeg -i input_vid.mp4 -filter:v "select='gt(scene,0.1)',showinfo" -vsync 0 frames/%05d.jpg When run from the terminal, it prints a line to what I think is stderr for each of the extracted frames, like so Parsed_showinfo_1 ⓐ 0x7f0198003540] n: 884 pts: 132552 pts_time:2209.2 duration: 2 duration_time:0.0333333 fmt:yuv420p cl:left sar:0/1 s:480x360 i:P iskey:0 type:P checksum:F2D8FCAA plane_checksum:[2D2F32C1 6E0164EC 832064FD] mean:[16 (...)

12 juin

Newest 'ffmpeg' Questions - Stack Overflow http://stackoverflow.com/questions/tagged/ffmpeg

• 20:34
  Using FFMPEG with Cookies? jsessionid? [closed] - mario anne Newest 'ffmpeg' Questions - Stack Overflow
  Sorry if I just missed the answers but I have searched for one and a half hour already. I want to use FFmpeg to download a video. But it doesn't work. I got the following link: " https://streaming.magentamusik.de/csm/live/141580688/6.m3u8;jsessionid=8FC831D877B0B49D91525B7D5B71C62B.csm-e-ces1aeuw1live102-0f371de46adbfb70f.tls1.yospace.com?yo.aas=streamingmagentamusic360-eb.tls1&yo.up=https://streaming.magentamusik.de/hls/live/573870/magentamusik1/&yo.eb.fb=aHR0cHM6Ly9zdHJlYW1pbmcubWFnZW50YW11c2lrLmRlL2hscy9saXZlLzU3Mzg3MC9tYWdlbnRhbXVzaWsxL2luZGV4Lm0zdTg&yo.ac=true&yo. -- https://streaming.magentamusik.de/csm/live/141580688/6.m3u8;jsessionid=8FC831D877B0B49D91525B7D5B71C62B.csm-e-ces1aeuw1live102-0f371de46adbfb70f.tls1.yospace.com?yo.aas=streamingmagentamusic360-eb.tls1&yo.up=https://streaming.magentamusik.de/hls/live/573870/magentamusik1/&yo.eb.fb=aHR0cHM6Ly9zdHJlYW1pbmcubWFnZW50YW11c2lrLmRlL2hscy9saXZlLzU3Mzg3MC9tYWdlbnRhbXVzaWsxL2luZGV4Lm0zdTg&yo.ac=true&yo.pdt=sync&yo.av=3&yo.po=3&iOS_QS=1&yo.ac=true&yo.pdt=sync&yo.av=3&externalId=magentamusik1
• 23:25
  Merge Multiple Videos using node fluent ffmpeg - shyamshyre Newest 'ffmpeg' Questions - Stack Overflow
  requirement is to read all the files in the directory and merge them. I am using node fluent-ffmpeg to achieve this. First of all reading all the files in the directory appending concatenating the string by adding .input. var finalresult="E:/ETV/videos/finalresult.mp4" outputresult : It consists of all the files read in the directory. /*Javascript*/ MergeVideo(outputresult); function MergeVideo(outputresult) console.log("in merge video"); var videostring = ""; for(i=1;i It gives the following error: TypeError: (...)
• 13:53
  AVFrame with NV12 format breaks using D3D11 HW acceleration - dima2012 terminator Newest 'ffmpeg' Questions - Stack Overflow
  I have a ffmpeg-autogen video decoder, im trying to use a D3D11 as HW accelerator, but the frame i get in result(with NV12 format) is broken. If im doing the same with Vulkan as accelerator, everything works fine, but vulkan uses more graphic card resources.. For rendering i use OpenTK, received frames i convert to RGB with textures and shaders. Below my decoder initialization. public VideoStreamDecoder(AVCodecParameters* parameters, AVCodec* codec) AVCodec* _codec = codec; _pCodecContext = ffmpeg.avcodec_alloc_context3(_codec);  (...) -- normally working, broken, image, everything
• 13:39
  FFmpeg.Autogen : Issue with Zero-Sized Atom Boxes in MP4 Output - Alexander Jansson Newest 'ffmpeg' Questions - Stack Overflow
  I just started learning ffmpeg using ffmpeg.autogen wrapper version 5.1 in c#, and ffmpeg shared libs version 5.1. Im trying to facilitate a class which screenrecords using gdigrab and produces streamable mp4 to a/an buffer/event. Everything seems to work as suposed to with no error except that the outputstream produces atom boxes with 0 in size thus small file size aswell, no data seems to be produced in the boxes, the "debug test mp4 file" is analyzed with MP4Box and the box info is provided in the thread. To be more specific why does this code produce empty atomboxes, is someone (...) -- https://pastebin.com/xkM4MfG7
• 13:38
  Copying GoPro metadata with ffmpeg - Could not find tag for codec none - TomMaier Newest 'ffmpeg' Questions - Stack Overflow
  I am trying to use ffmpeg to copy the metadata of a gopro file. The most basic demonstration of the problem would be to copy everything to a new file: ffmpeg -y -i source.MP4 -c copy -copy_unknown -map 0:v -map 0:a -map 0:2 -map 0:3 -map 0:4 -map_metadata 0 result.MP4 This produces the error: Could not find tag for codec none in stream #2, codec not currently supported in container Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument Error initializing output stream 0:4 -- As I understand it this means that (...) -- GoPro file
• 11:40
  ffmpeg command in my Python code is not working in Docker - Akhil Varghese Newest 'ffmpeg' Questions - Stack Overflow
  I am developing a Python (Django-REST) app for video processing. I need to extract the frames of videos and need to save a live stream(RSTP stream) to the desired directory. I am using ffmpeg for saving the RTSP stream, and I have also Dockerized the app. Live Stream save method import subprocess ⓐapi_view(['POST']) def saveRtsp(request): logger.info("Saving RTSP URL") rtsp_url = 'rtsp://192.168.1.117/sample2.mkv' rtsp_video_path = 'rtsp.mp4' try: ffmpeg_command = [ 'ffmpeg',  (...) -- ,
• 08:08
  Libavcodec (FFMPEG) D3D11 hardware acceleration not outputting hardware frames - luckybroma Newest 'ffmpeg' Questions - Stack Overflow
  The Problem I'm trying to get FFMPEG to output D3D11 2D textures directly as Frames. As I understand, this is infact possible. The reasoning for this, is I can then decode the YUV format directly on the GPU and then display it without having to Marshall it back to the CPU. My problem is that I can't get the decoder to actually output frames in the desired format, they are always software YUV420J. Is this because I'm not initializing the decoder properly? Or perhaps there is some other configuration I'm missing. The Details I've been (...) -- example