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Questions tagged [openh264]

Cisco has taken their H.264 implementation, and open sourced it under BSD license terms. Development and maintenance will be overseen by a board from industry and the open source community. Furthermore, we have provided a binary form suitable for inclusion in applications across a number of different operating systems, and make this binary module available for download from the Internet

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Not able to build openh264 for ios because of libstdc++

I am trying to build openh264 for ios. I have downloaded the source code from the latest release. then changed the PREFIX in makefile to ios_local. After that I did make OS=ios ARCH=arm64 which completed with lot of warning. After that when I did…
Anuran Barman
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How to deal ffplay being too slow playing iPhone's videos?

Trying to play a 3840x2160 video recorded by an iPhone 7 (@30fps), I get frequent pauses -- in the video, music keeps playing. This happens both in firefox and when ffplay is invoked to play the file directly -- from command-line. The CPU is a dual…
Mikhail T.
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How to use a dll-file in Visual Studio C++ when it didn't come with a lib-file and header files?

I want to use the OpenH264 library in my Visual Studio C++ project. Now, I was given the advice to use the precompiled version, since they already offer that. But when I look at the releases there only is a precompiled dll-file, nothing else. Or I'm…
dYTe
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Openh264 encoder increase number of IDR or I-frames

I am looking for a way to control the frequency of IDR/I-Frames that openh264 encodes. Is there any encoder setting that can archive that?
0x64
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How to separate I frames (IDR slices) and P frames(Non-IDR slices) in a H264 bytestream?

I am creating an H264 byte stream by depacketizing the video fragments from an IP camera. I am using the following syntax: 0x000001[SPS] 0x000001[PPS] 0x000001[I slice] After decoding this byte stream, I get a half-blurred image. I am assuming…
Srijith Vijay
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Decode H264 stream over Network OpenH264

I am facing a problem with OpenH264 library https://github.com/cisco/openh264 I would like to decode a stream sent by my raspberry pi camera over network on my C++/Qt Program which will display the image. I'm using gstreamer on Raspberry Side to…
X6Entrepreneur
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InitilizeExt() for encoder is failing for openH264

I am implementing the openH264 in my solution. I am facing issue with the calls to Initialize() [for encoder with basic parameter] and InitializeExt() [for encoder with extension parameter]. It is always returning 1(cmInitParaError). I verified the…
Venkanag
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Generating a P frame based on an I frame

Say I have 5 images that are quite similar. I'd like to compress images 2, 3, 4 and 5 based on the first image, somewhat similar to the way P frames are generated from an I frame. In general, what's the best way/tool to do so? For instance, using…
Navid Ahmadi
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faild to build Libyuv library (PJSIP) for android

I'm developing a chat android application. I want to use also the call functionality. I have successfully built the pjsua2.so library for SIP call VoIP but I failed to build Libyuv.so Library for video call I followed the instructions in thows to…
nouha
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Substitue argument with pipes

I am writing code that reads h264 data from socket, passes it to h264dec.exe (openh264 decoder) and then pases YUV data to YUV-RGB decoder. My issue is that openh264dec works like "h264dec video.h264 out.yuv". And I don't really know how to handle…
CoreMeltdown
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build error on Android: "error: undefined reference to 'pthread_setname_np'"

I always got the build error while compiling the Openh264: libopenh264.a(WelsThreadLib.o):WelsThreadLib.cpp:function WelsThreadSetName: error: undefined reference to 'pthread_setname_np' How to fix it ?
Jerikc XIONG
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How to link or add openh264 library on Objective C project using Xcode

I am working with Openh264 library. I worked before with this library in Linux environment. But I haven't found any working documentation to link openh264 library on Xcode. I have tried other solutions to add .a or .so library files in Xcode…
RajibTheKing
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Delphi OpenH264 decode

i'm using the cisco OpenH264 codec in coding and decoding process , the coding stage works very well and i can read my encoded H.264 file correctly , the issue is with my decoding process and mainly the conversion from I420 to ARGB , please can any…
randydom
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