I had the same issue. I was redirecting the standard output, but FFmpeg outputs text messages to the standard error. static void Main(string[] args) { ProcessStartInfo startInfo = new ProcessStartInfo(); ...

ffmpeg

FFmpeg Filters Every Youtuber Needs

5 Nov 2023 by V. Subhash

A simple fix for excessively bright video and low-volume audio

Using libav, how to force RTSP stream over TCP?

14 Aug 2023 by Richard MacCutchan

Support and maintenance of libav was abandoned some years ago according to Libav - Wikipedia[^].

Ubuntu

ffmpeg

Using libav, how to force RTSP stream over TCP?

14 Aug 2023 by ilostmyid2

By using ffmpeg or ffplay you may specify -rtsp_transport tcp switch to force the rtsp stream be opened via tcp. In programming, I'm using libav to open the rtsp stream with the following code: AVDictionary *options = NULL; av_dict_set(&options,...

Ubuntu

ffmpeg

Silencedetect into a file fluent-ffmpeg

5 Jun 2023 by Nobunaji

I'm trying to detect the silence inside an audio file using ffmpeg's silencedetect filter and outputting the timestamps inside a txt file. The function runs but no file is created. What I have tried: I've tried the following code : return...

ReactJS

ffmpeg

Error in complexfilter in fluent-ffmpeg

4 Jun 2023 by Nobunaji

Hi, i have the following complex_filter in a fluent-ffmpeg function : .complexFilter([ { filter: "volume", options: [string], inputs: "1", outputs: 'audio', eval: 'frame' }, { filter:...

ReactJS

ffmpeg

V380 Pro wireless CCTV camera with night vision and RTSP support

4 Apr 2023 by Tough Developer

The V380 Pro wireless CCTV camera is available from many sellers on AliExpress for as low as 15USD. It has 10

camera

ffmpeg

How to Compile FFmpeg 6.0 in Linux and What New Things Can Be Done With It

8 Mar 2023 by V. Subhash

How to get compile the latest FFmpeg source code and try out some new features

Linux

ffmpeg

Bash

How to repair corrupted mp4 video?

17 Feb 2023 by OriginalGriff

This is not a video repair site: we are here for software development problems and this is not that! To be honest, you are unlikely to find a free repair tool that will work with anything that large: most free tools are trial versions and only...

How to convert H264 video file to MP4 file with audio

13 Mar 2022 by Member 15564955

Hi, I am trying to convert files from a Chinese manufactured birdbox camera which also has a microphone. The camera records files with the extension .h264 and until recently, the only way I had found to convert them to a format I could play on...

ffmpeg

How to convert H264 video file to MP4 file with audio

13 Mar 2022 by lingeswararaj.s

How to convert H264 video file to MP4 file with audio. When i am converting H264 to MP4, i could not get the audio when playing the video. What I have tried: I tried converting H264 file to MP4 file using ffMPEG. Its converted but audio is not...

ffmpeg

Merge many video files using splicer.

1 Mar 2022 by j ongamer13

Hello, I am trying to make a program that copies a specific video until the total length is longer than a specified amount. I need help trying to join them. Here is my joining code. // videos is a List containing a list of every single...

ffmpeg

How do I sync audio when playing video at different rate using FFMPEG and SDL

2 Sep 2021 by bazzabahuloo

I managed to get this working for me by making a change in the stream reader thread for Audio when video is playing at anything other than normal speed. I am not sure this is the correct place, but it seems to work well at both high and low...

Delphi

ffmpeg

How do I sync audio when playing video at different rate using FFMPEG and SDL

1 Sep 2021 by bazzabahuloo

Hi I have an AVPlayer written in Delphi using the FFMPEG libraries. This basically implements a video player as per FFPLAY but under Delphi. I want to add variable speed video playback to this player, which is easy on the video side as you...

Delphi

ffmpeg

Vb.net aforge video capture - memory is consumed and the camera freezes

11 Aug 2021 by Eyadox

I wrote code using Aforge to capture the Video from the camera and its working fine. My problem is when I just start the Camera in the preview mode only without recording, the camera (preview window) freezes after 15 or 20 seconds. Then I noticed...

What is the fastest why of create a thumbnail from a video by ffmpeg or anything else in WPF C#?

17 Jul 2021 by 4L4K1

What is the fastest why of create a thumbnail from a video by FFmpeg or anything else in WPF c#? look at the code in what I have tried section it takes about 3 seconds How can I reduce it What I have tried: string Arguments = @"-ss " +...

WPF

ffmpeg

How do you create a custom FFMPEG IO-context with std::ifstream?

26 Jun 2021 by Eric Stevens 2021

I've been referencing this article about how to create a custom IO-Context with FFmpeg, but he invoked the use of an IStream interface. I am simply just trying to use an std::ifstream object in order to create the Context and proceed with opening...

C++

ffmpeg

stream

How do you create a custom FFMPEG IO-context with std::ifstream?

26 Jun 2021 by KarstenK

It looks like you missed some steps to create working code with not initializing your audio_file. It needs to be created before used. Maybe you read some ffmpeg tutorial to start. The ffmpeg is tricky so stick the documentation and working code...

C++

ffmpeg

stream

How to Use FFmpeg Filters to Jazz Up Your Audio and Video Files

21 Jun 2021 by V. Subhash

Cut, copy, convert, mix, rotate, flip, resize, crop, combine, compose, blur, sharpen, smoothen, side-by-side split, PIP inset, fade in/out using FFmpeg Filters

How do I create a proper numpy using ffmpeg to use with opencv

10 May 2021 by Member 15192080

Hi everyone, I'm trying to convert with ffmpeg-python every frame of a video in a numpy array that could work with opencv What I have tried: Here my code: for i in (frames): out, _ = ( ffmpeg ...

Python

ffmpeg

OpenCV

Converting Video with FFmpegCore

23 Feb 2021 by Bohdan Stupak

A simple snippet of how you can convert video in .NET Core

Encode to 4K resolution - ffmpeg

6 Jan 2021 by Richard MacCutchan

See ffmpeg Documentation[^]

ffmpeg

syntax

How to add date and time of the downloading video

5 Jan 2021 by RickZeeland

See the third answer here: c# - Can ffmpeg burn in time code? - Stack Overflow[^]

ffmpeg

YouTube

Decoding video packets received from tcpreplay using C++/qt

11 Sep 2020 by KarstenK

You should contact the folks of tcpreplay. Normally you have some decoding functions which are doing the jobs. Best is to search for some sample code.

Decoding video packets received from tcpreplay using C++/qt

11 Sep 2020 by Sharma Dilip

I have a PCAP file having the encoded video data. I am using TCPReplay to broadcast this PCAP data to my server. In my server I have written a QT UDP socket program to receive these packets. I am able to receive these packets successfully in my...

Screenrecorder using ffmpeg

24 Aug 2020 by Fazi_13

i am getting below the messages in cmd [dshow @ 05bdd9c0] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8) [gdigrab @ 05c51800] Thread message queue blocking; consider raising the...

ffmpeg

Screenrecorder using ffmpeg

24 Aug 2020 by Sandeep Mewara

For error: Quote: Thread message queue blocking; consider raising the thread_queue_size option (current value: 8) Try to add -thread_queue_size 512 and see. Seems you need to tune your parameters to what your system/configurations can support....

ffmpeg

Vb.net aforge video capture - memory is consumed and the camera freezes

23 Aug 2020 by Hank Williams

Have you tried using the Aforge VideoSourcePlayer control instead of the picturebox control? I think the VideoSourcePlayer control is more suited to your needs.

How do I broadcast live audio in node.js?

19 Jun 2020 by Jo Aqra

I'm trying stream live audio to a wide range of clients in a web browser. My current solution : Dotnet core 3.1 console application -receive the audio data over UDP -trimming the first 28 bytes of each received packet -and send the processed...

Can framebuffer create a buffer for adding queses of images for fast rendering?

30 May 2020 by Member 14816523

Hi, I am working on the OpenGL Application. which can open and read multiple video file frames. so, in output is can play three different videos at the same time without async frames rendering. what are odds get the sync frames rendering? After...

C++14

OpenGL

ffmpeg

How I cam create video from sequence images

26 Mar 2020 by Member 14129828

I tried to create a video from a sequence image using FFmpeg in c#. I wrote this code but I didn't get the output how to solve this problem...thanks What I have tried: public void Execute() { using (var...

image-processing

ffmpeg

How I cam create video from sequence images

26 Mar 2020 by Maciej Los

Please, take a look at answered question: Converting Images into Video using C#[^] You can also be interested in this project: GitHub - mmaitre314/PictureMovie: Create MP4 videos from JPG/PNG/GIF/BMP images[^] Other links:...

image-processing

ffmpeg

Stream Player Control

25 Dec 2019 by Alexander Iacobciuc

In this article you will find an implementation of a stream player control.

How can I record sound card to mp3 with ffmpeg in windows?

18 May 2019 by son0nline

How can sound be recorded programmatically in Windows into mp3? What I have tried: Nothing - this is an old question that deserve an answer for the rest of the Code Project community.

Windows

ffmpeg

MP3

How can I record sound card to mp3 with ffmpeg in windows?

18 May 2019 by Michael Haephrati

I would start here[^] and follow the guidelines.

Windows

ffmpeg

MP3

How to convert H264 video file to MP4 file with audio

1 May 2019 by OriginalGriff

H264 is a video stream format - it doesn't contain any audio stream data at all. MP4 is a package, which can contain both audio and video stream(s) - but it can't "invent" an audio stream from video data! Start with your movie source file: it probably contains both video and audio streams, and...

ffmpeg

980210 - what is wrong while providing arguments for sws_scale?

30 Apr 2019 by ilostmyid2

In the following code, I can't figure out what's wrong: uint8_t *dstData[4]; int dstLinesize[4]; AVPixelFormat convertToPixFmt = AV_PIX_FMT_RGBA; int ret; // ... printf("tmp_frame format: %d (%s) %dx%d\n", tmp_frame->format, av_get_pix_fmt_name((AVPixelFormat)tmp_frame->format),...

C++

ffmpeg

980210 - what is wrong while providing arguments for sws_scale?

30 Apr 2019 by KarstenK

Normally the error message is more correct than the code written by some beginner. So I think you have mismatched some data or data types. Here is some working code with sws_scale which may show you to get it work. I think you should review the naming of your variables and their usage in the...

C++

ffmpeg

What's the best method for rendering a decoded frame?

18 Apr 2019 by ilostmyid2

In the following code, I need to know whether I used a proper method for rendering frames obtained after decoding and rescaling. Besides, I get exception. I don't know what the exception is, since I see red x instead of images after some time. using System; using System.Collections.Generic;...

ffmpeg

Bitmap

What's the best method for rendering a decoded frame?

18 Apr 2019 by Fueled By Decaff

You are trying to perform UI(User Interface) operations on a thread that is not the UI thread. Either create and display the Bitmap in the backgroundWorker1_ProgressChanged method or use this.Invoke to execute code on the Form UI thread and generate the Bitmap and display it in the method...

ffmpeg

Bitmap

971130 - I get invalid argument error in avcodec_send_packet

19 Feb 2019 by ilostmyid2

In the following code: int CplayerDlg::play() { FILE *fp = fopen("video_files/1010.brf", "rb"); ASSERT(fp); RecordFrame rf; RecordHeader hdr; ASSERT(fread(&rf, sizeof(rf), 1, fp) == 1); ASSERT(rf.frameType == FRAME_TYPE_HEADER); ASSERT(fread(&hdr, sizeof(hdr), 1, fp) == 1);...

Windows

ffmpeg

971108 - ffmpeg doesn't use GPU

28 Jan 2019 by ilostmyid2

I got the latest version binaries of ffmpeg from here[^]. When I examine CPU and GPU usages when I play a video by its ffplay, I see that GPU is used during play. Not much using of CPU also indicates it. But when I get the latest version sources from the original site, I can't use GPU. To...

Windows

ffmpeg

971108 - ffmpeg doesn't use GPU

28 Jan 2019 by RickZeeland

See answers here: GPÜ-accelerated video processing with ffmpeg - Stack Overflow[^]

Windows

ffmpeg

Ioexception on watermarking video on android

22 Jan 2019 by Umesh_dmt

make sure all the files available on path which you provide on script. Follow the below example -y -i /storage/emulated/0/Pictures/HelloCamera/VID_TESTING_20190123_124845.mp4 -i /storage/3636-3861/ic_launcher_incode.png -filter_complex [0][1]overlay=10:main_h-overlay_h-10...

Android

ffmpeg

watermark

971029 - directx vs ffmpeg

18 Jan 2019 by ilostmyid2

hi i'm in the process of deciding how to decode received video frames, based on the following: 1. platform is Windows. 2. frames are encoded in H264 or H265. 3. GPU should be used as much 4. certainly we prefer less coding and simplest code. we just need to decode and show the result on screen....

DirectX

ffmpeg

971029 - directx vs ffmpeg

18 Jan 2019 by RickZeeland

Maybe the easiest way is to use LibVLC (which use ffmpeg too), see example here: .net - How to streaming video via VLC api in C# - Stack Overflow[^]

DirectX

ffmpeg

H264/MP4 live stream from ffmpeg does not work in browser

20 Sep 2018 by paunescuionica

I cannot visualize a H264/MP4 stream generated by ffmpeg in Chrome, IE, Edge. It works only in Firefox. My testing environment is Windows 10, all updates done, all browsers up to date. What I have tried: I have a source MJPEG stream, which I need to transcode to H264/MP4 and show it in...

970530 - how to decode by GPU in ffmpeg

20 Aug 2018 by Jochen Arndt

Start by reading HWAccelIntro – FFmpeg[^]. For usage with the API check if an appropriate decoder is available and select that for decoding (requires that the library has been built with support for that decoder): // C/C++ example to use the DXVA2 decoder AVCodec* decoder =...

ffmpeg

video

970530 - how to decode by GPU in ffmpeg

20 Aug 2018 by ilostmyid2

platform: Windows application: WinForm application language: C# decoder: ffmpeg Hi We're using ffmpeg to decode frames sent via network to us. The program is written in C# and uses FFmpegInvoke as well as the required DLL's like avcodec-56.dll and avutil-54.dll for decoding the frames. We need...

ffmpeg

video

Ffmpeg not creating file running through .NET like when in CMD

16 Aug 2018 by Member 13948830

I am working on a small project that needs to use ffmpeg to pull out some video from the main video. I have called the following within a command prompt and get my 8 second video named correctly in the folder: ffmpeg -ss 00:47:25 -t 8 -i C:\\Personal\\TestData\\MainVideo.mp4 -vcodec copy...

ffmpeg

cmd

video

Ffmpeg not creating file running through .NET like when in CMD

16 Aug 2018 by Member 13948830

This is what I did to finally get it to work var processStartInfo = new ProcessStartInfo(@"C:\FFmpeg\bin\ffmpeg.exe"); processStartInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden; ...

ffmpeg

cmd

video

How to create video streaming for local network using C#

20 Jul 2018 by Gerry Schmitz

How to webcast using Microsoft Expression Encoder[^]

How to create video streaming for local network using C#

20 Jul 2018 by Ledrunning

Hello! I have been working on the solution to develop video streaming services on server side using C#. In my case I need to implement videostream from file (or other stream, not any devices) to local network via Ethernet for clients. I try use AForge.NET Framework and AForge.FFmpeg.dll...

avcodec_encode_audio2 error nb_samples > frame_size

7 Jun 2018 by entangledloops

You need to use a buffer, like a FIFO. See here: FFmpeg/transcode_aac.c at master · FFmpeg/FFmpeg · GitHub[^]

C++

ffmpeg

avcodec_encode_audio2 error nb_samples > frame_size

7 Jun 2018 by godspeed123

Hi ThereI want to encode audio using FFMPEG, but the problem is the nb_samples of the AVFrame is 22050 but the frame_size of the encoder is 1152. So how can I use avcodec_encode_audio2 function with this. Does anyone have an example of a way to do this?Thanks in advance.

C++

ffmpeg

How to use desktop nvidia GPU gstreamer encoding {omxh264enc}

15 May 2018 by newfall

Hi Experts, I have developed the gstreamer GPU encoding on Jetson Tx2. but now i am trying for Desktop GPU encoding using gstreamer. I am not able get "*omxh264enc*" in the listed supported elements using "*gst-inspect-1.0.exe*". so, i want to do hardware encoding on* desktop GPU* using...

FFMPEG RTMP stream to MPEGTS conversion

3 May 2018 by Hitesh Rohilla

I am not a pro in FFMPEG but since working on it on non-frequent bases I tried to search for the solution but didn't get one However, I get one for RTSP FFMPEG -rtsp_transport tcp -i "rtsp://://" -f mpegts -codec:v mpeg1video -b:v 800k -r 30 - But my streaming is...

ffmpeg

RTC

streaming

MPEG-TS video file creation

25 Apr 2018 by radnix

In the past, I'm able to record an RTSP camera stream with FFMPEG using this command: ffmpeg -i rtsp://192.168.241.1/axis-media/media.amp -acodec copy -vcodec copy -f mpegts out.ts FFmpeg produces a well structured transport stream container with my camera video inside the container....

ffmpeg

MPEG

video

How to combine/merge a video and a gif using FFMPEG?

19 Feb 2018 by Member 13682761

I want to merge a video and Gif. My video is a picture and a song during 45 seconds and my Gif is a equalizer animation. I want to combine video and Gif , Gif opacity be 50%. I can't find any solution but I try do it by C# it doesn't work too. Thanks a lot. What I have tried: private void...

ffmpeg

GIF

video

How to combine/merge a video and a gif using FFMPEG?

18 Feb 2018 by Donald jeffers

Please refer to this link. I hope this helps.

ffmpeg

GIF

video

How to create video using FFMPEG and C#

17 Feb 2018 by Member 13682761

hi dear, I want to create a video during 15 seconds using one picture in C#. I try a lot of way but I couldn't , if anyone has solution pleas help me. this is my code : What I have tried: using (Process p = new Process()) { p.StartInfo.UseShellExecute = false; ...

ffmpeg

video

How to create video using FFMPEG and C#

17 Feb 2018 by RickZeeland

A lot of people seem to struggle with this, this one seems to have an answer: c# - Image sequence to video stream? - Stack Overflow[^]

ffmpeg

video

Ffmpeg output log in text file using C#

9 Nov 2017 by arunavachowdhury

This is a simple code to create ffmpeg log output in a file instead of console. But this code doesn't create an output log file wherein the same arrangements when used in command prompt it works. Can anybody help in this? what more needs to be done to get the output in the log file? Regards...

ffmpeg

Ffmpeg output log in text file using C#

9 Nov 2017 by arunavachowdhury

Tried with the above code but its not working. When we run ffmpeg with the same code we need to remove the final "\" after ffmpeglog.log to generate the log. When I am using " -i \"d:\\wildlife.wmv 2> \"D:\\ffmpeglog.log\"" The log is not generating but cannot remove the "\" from the string...

ffmpeg

Ffmpeg output log in text file using C#

8 Nov 2017 by Richard MacCutchan

A quick check with your debugger would show you that your parameters are wrong as you have unescaped backslashes in your strings. So the code: string fullPath = "d:"; string fileName= "wildlife.wmv"; string pathfile = "D:"; process.StartInfo.Arguments = "-i \"" +...

ffmpeg

How can I catch devices using ffmpeg and C#?

26 Oct 2017 by Graeme_Grant

You want to "capture" the output? This should answer your question: Capturing console output from a .NET application (C#) - Stack Overflow[^]

ffmpeg

How can I catch devices using ffmpeg and C#?

26 Oct 2017 by hsafavi

I want to catch devices using ffmpeg.exe. i used Process class and related ffmpeg command but no success What I have tried: i used following code but the output is nothing!! i think it happens because the process exited as soon as process.start() executed. how can i do that? static void...

ffmpeg

Convert raw files to mp4 video using C++ with ffmpeg

4 Oct 2017 by StefanAdmin@123

I want to convert a raw files to mp4 video format using ffmpeg and i want to implement it using C++. How do i go about it. I have configured libs and include folder in visual studio set up.I will be glad if i could get a useful link or sample code in C++. What I have tried: I don't know how to...

VisualC++

C++

ffmpeg

Convert raw files to mp4 video using C++ with ffmpeg

4 Oct 2017 by KarstenK

You best start at the ffmpeg documentation site. I also like to mention the ffmpeg examples. Maybe that stackoverflow answer helps you in your problem. It is a complex library so you will have to learn a lot.

VisualC++

C++

ffmpeg

How to start audio and video capture /merge audio and video using aforge ffmpeg in C#

11 Jul 2017 by Ahmad_Mustafa

use this proc.StartInfo.Arguments = string.Format("-i {0} -i {1} -acodec copy -vcodec copy -map 0:0 -map 0:1 {2}", Wavefile, video1, strResult);

How to create image from byte[] send by RTP packets

11 Jul 2017 by Member 13117475

Hi, I am working on capture images by calling RTSP service. For calling RTSP service I have created one sample application (as a client) and in that I have created socket object and call RTSP service listen method. I am also able to receive byte[] using UDP listener, but I am not able to use...

How to create image from byte[] send by RTP packets

11 Jul 2017 by KarstenK

Why are you sending TCP and receiving UDP packets??? Use TCP alsp on the receiver side. You should use the Image.Save() with a parameter to enforce jpeg. image.Save(path, ImageFormat.Jpeg); Else check for other problems, like the transmitted data and its size.

Using FFMPEG in C# project

17 Mar 2017 by Ahmad_Mustafa

There is a Long process to use FFmpeg in C#. I have some Questions about it when i use it in c# project and make some software using it and give to some one all the things we install to setup Other person needs these things as well ? Is there any Other easy way to setup FFmpeg in c# Project....

How to Record Twitch Streams Automatically in Python

20 Jan 2017 by Junian Triajianto

Using the power of Livestreamer and FFmpeg, twitch stream can be recorded every time a user goes online.

Python

PHP

ffmpeg

Audio decode to noise on iOS but ok on windows

30 Nov 2016 by Charly LEE

the input mp3 is single channel with 32000 sample rate, 16bit signed.I am using ffmpeg 2.6 to decode mp3 on ios9.3.2 pad. It get white noise only. but it works on windows.I record the decoded PCM to file and use tool to play it. when I changed the bit set to 32. I can hear the original sound...

Audio decode to noise on iOS but ok on windows

30 Nov 2016 by KarstenK

the solution looks really simple. AVPacket avpkt; av_init_packet(&avpkt); // set values AFTER init avpkt.data = encode_packet->data; avpkt.size = encode_packet->data_length;I am a bit confused that your old code works on Windows. But I know that the Objective-C runtime...

Opencv_ffmpeg module crash (IP camera)

27 Nov 2016 by Member 12761317

I'm using IP webcam android app(It converts mobile camera into IP web camera). I'm running below code in Visual Studio 2015 with OpenCV 3.1. VideoCapture cap; Mat img; cap.open("http://192.168.0.101:8080/video?x.mjpeg"); while(waitKey(33)!=27) { try{ ...

C++

ffmpeg

OpenCV

Opencv_ffmpeg module crash (IP camera)

27 Nov 2016 by Arthur V. Ratz

Normally, in this code, at the beginning, you declare two variables: VideoCapture cap; Mat img; You normally open the camera by invoking cap.open("http://192.168.0.101:8080/video?x.mjpeg"); method and then perform a loop to retrieve each frame from the camera device storing them into a frame...

C++

ffmpeg

OpenCV

Ioexception on watermarking video on android

17 Sep 2016 by Stefan Ionescu Freelancing

I am trying to programmatically watermark a video in Android using WritingMinds' Ffmpeg library from Github :https://github.com/WritingMinds/ffmpeg-android-javaI did all they said in their documentation and imported the library in Android Studio.Still, it gives me an IOExeption with...

Android

ffmpeg

watermark

Error when I use aforge FFMPEG

10 Sep 2016 by Richard MacCutchan

See VideoFileReader Class[^] for instructions on installation and usage.

ffmpeg

webcam

Error when I use aforge FFMPEG

10 Sep 2016 by ghasem110deh

hi guy'si use Aforge lib in my project for capture image and record live video from webCam ...but when use ffmpeg.dll to save AVI file from webCam send this Error :private VideoFileWriter FileWriter = new VideoFileWriter(); FileWriter.Open("test.avi", 460, 500, 25,...

ffmpeg

webcam

How do I use ffplay seek after 26.5hour when the m3u8 file is big than 26.5hour

29 Aug 2016 by hansonzou

the particulars is i save a rtsp stream to ts file by ffmpeg per 10 second , it may last for a long time(more than 26.5hour), when it done, it will save a m3u8 file, after that, i use ffplay to play then m3u8 file, if i want to seek to 26.7hour , the play must be stoped. -----PTS (sec) =...

C++

ffmpeg

How do I use ffplay seek after 26.5hour when the m3u8 file is big than 26.5hour

29 Aug 2016 by KarstenK

The only way I see is to split the files in parts with playtime less but roughly the 26.5 h and than compute the offset and seek the correct subfile.

C++

ffmpeg

FFMPEG write header error

9 Jun 2016 by Member 11549235

Hi, I'm working on a FFMPEg Project and trying to write a file with a stream. But when I call avformat_write_header it always throws an errr. Here's the code:AVCodecContext *codecctx; AVFormatContext *fmtctx; fmt=av_guess_format(NULL,filename,NULL); if(!fmt) printf("Das Format kann...

C++

ffmpeg

FFMPEG write header error

9 Jun 2016 by Member 11549235

The Problem is i forgot to call avio_open. Now I'm trying to add a png Image to the stream, but don't know how to convert it to an useable Frame. Can you give me some hints?

C++

ffmpeg

FFMPEG write header error

8 Jun 2016 by Jochen Arndt

Like Richard I do not know ffmpeg well. But the documentation for avformat_write_header[^] states for the first parameter:Quote:Media file handle, must be allocated with avformat_alloc_context(). Its oformat field must be set to the desired output format; Its pb field must be set to an...

C++

ffmpeg

How to start audio and video capture /merge audio and video using aforge ffmpeg in C#

16 May 2016 by Eranga Dayarathne

I have Created audio and video capture method and Save thee two file in to my location.after these two file merge in to one avi format file.in the final output file audio run first and video take delay. how to fix it. I used ffmpeg.exe for merge.are there many system for capture audio and...

Vash - A GDI+ Flash-Like Vector Animation Program

27 Apr 2016 by Clayton Rumley

There are those who think I am crazy, and this just might be the proof.

Openh264 - benableframeskip=0, bitrate can't be controlled

9 Apr 2016 by Prakash1206

there are a lot of questions asked regarding opencv + H.264 but none of them gave detailed explanation.i am using openh264(openh264-1.4.0-win32msvc.dll) along with opencv 3.1(custom build with cmake having ffmpeg enabled) in visual studio, i wanted to save video coming from webcam in mp4...

Video Transcoding and Streaming on the fly

13 Mar 2016 by Maxim Komlev

Experiment of Video Transcoding and Streaming on the fly to all major internet browsers (just to video tag) without Flash or Silverlight

adaptive compression with ffmpeg

26 Jan 2016 by paunescuionica

I'm currently developing an application which will enable visualizing images from different sources (mostly IP cameras) in browser (in a HTML5 video element). The UI will allow for matrix view so, normally 16 or more cameras will be displayed at the same time.From cameras I get MJPEG streams...

streaming

ffmpeg

encoding

How Can I Get File Is Uploaded Or Not

18 Dec 2015 by Jochen Arndt

Your FTP server should know which files are actually being uploaded.A good implemented server would also lock the file even for reading while the upload is in progress. Then your service might detect the new file but will be not be able to open it.If there is no read lock, there should...

ffmpeg

How Can I Get File Is Uploaded Or Not

18 Dec 2015 by Member 11324668

Hi i have a simple question, i have window service that run in specific interval.Now i have one issue when user upload a big file and during same time window service run and convert that file to mp4 using ffmpeg but original video is not uploaded completely. therefor converted video does not...

ffmpeg

MP4 live stream from individual images

23 Nov 2015 by Sergey Alexandrovich Kryukov

Please see my comment to the question. I cannot tell you for sure what to choose, not sure myself, but I can give your some words in favor or FFMpeg. I did not use Media Foundation, but I often heard the opinions that FFMpeg offers a much broader set of features compared to Media...

ffmpeg

streaming

MP4 live stream from individual images

23 Nov 2015 by paunescuionica

I'm using an API which gives live images from different sources (mainly from IP cameras). So I have few jpg images coming in each second.My requirement is to produce a H.264 encoded MP4 live stream, that will be displayed in a browser (in HTML5 element).So, transform this live...

ffmpeg

streaming

How do I make a C# win form program that breaks a video down to frames, then put those frames back together to make a video?

30 Jul 2015 by CHill60

If you can't understand the code presented we are unlikely to be able to help you much in a Quick Answers Forum! However - your first link - you can put the code wherever you like. A button click event would be appropriate, amongst other options.The missing reference on your 2nd link is...

C#5.0

frame

ffmpeg

How do I make a C# win form program that breaks a video down to frames, then put those frames back together to make a video?

30 Jul 2015 by Atom Scott

First, I'm fairly new to see sharp so I'm looking for a thorough and easy to understand answer.How do I make a C# win form program that breaks a video down to frames, then puts those frames back together to make a video?I also want to be able to select which frames to extract by setting an...

C#5.0

frame

ffmpeg

How to achieve playback of DirectShow filter at difference rates

26 Jul 2015 by parisonj

Hi,Does anyone have any good tips or practical experience on controlling the playback rate of video/audio streams?Using SetRate() doesn't seem to give me reliable (smooth) results, certainly above values of 2.0, and often locks up completely.Ideally, I need to typical rates of x1, x2,...

C++

ffmpeg

directshow

[Resolved] Batch file open incorrect

5 Jun 2015 by Adrian Andrei

Check the autos.Check if ffmpeg images folder is the Process.WorkingDirectory.Check if images are png files.Check if there are some problems with your code.

Windows

ffmpeg