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Questions tagged [libvpx]

libvpx is a package, from the WebM project, that provides the reference implementations of the VP8 Codec, used in most current html5 video, and of the next-generation VP9 Codec.

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vpxmt.lib for vs2012 1.3

3 vpxmt.lib for 2012. I've tried to build it but I keep running into new problems. It seems like one of those projects that will take a long time to setup with one dependency issue after another. I'm wondering if someone either has the .lib files…
user1335325
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crash inside vp8_short_fdct8x4_neon (libvpx 1.2.0) while building for iOS in PIE mode using xcode 4.5

Here I configured libvpx 1.2.0 for iOS using below mentioned configuration command ./configure --target=armv7-darwin-gcc…
gnb
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Error: cannot convert from 'int' to '__m128'

I am trying to compile libvpx-v1.3.0 on Win64 using Visual Studio 2005. But, I end up getting the following error, ..\libvpx-1.3.0\vp9\common\x86\vp9_loopfilter_intrin_sse2.c(36) : error C2440: 'function' : cannot convert from 'int' to '__m128' Can…
Josh
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Building libvpx under Windows 7 - yasm error

I am building libvpx under 64 bit Windows 7 (but want to target build for win32 platform), following the instructions here: http://www.webmproject.org/code/build-prerequisites/ I am doing this using Mingw, and using yasm 1.1.0. I am mostly through…
taansari
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Linphone Android - Error trying make (Build of libvpx for x86 failed | vp8) - Mac OSX

I'm working on an application with SIP using Linphone. I got the git repository from: git clone git://git.linphone.org/linphone-android.git --recursive I followed the Readme, and get the following error if i execute…
PiOsA
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Resize crash libvpx

I built libvpx(using cygwin, win7 x32, mingw). I did this steps: 1. Run "cygwin.bat" from mingw console; 2. Run "mintty"; 3. ./configure --prefix=d:/qt4.8/mingw --target=x86-win32-gcc; 4. make All built normal, but if I run test_libvpx.exe to test…
Bobur
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How to extract images from webm video using ffmpeg

I need to extract a set of images from a webm video using ffmpeg (version 0.9.2). I currently use this script: ./ffmpeg -i video.webm -r 1 -f image2 image-%04d.jpg but I have this error ffmpeg version 0.9.2, Copyright (c) 2000-2012 the FFmpeg…
Angelo Nodari
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Cann't build libvpx on Windows 7 x32

I download libvpx from code.google.com I want to use libvpx with Qt4.8. I followed by http://www.webmproject.org/code/build-prerequisites/ but everytime failed. When I run ./configure in cygwin I get that: Configuring selected codecs enabling…
Bobur
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webm local udp streaming using FFMPEG

I was just started to use ffmpeg recently and stumbled on this streaming problem. Scenario: i want to live stream a webcam in local network. Both server and client will be using windows platform. Current feasible solution: using ffmpeg simple…
siniv
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VP8/VP9 RTP library

Are there any existing libraries facilitating the transport of a VP8/VP9 stream through RTP ? I found the RFC draft for VP8 (https://datatracker.ietf.org/doc/html/draft-ietf-payload-vp8-08) but nothing mentioning the VP9 codec (too recent ?). It…
3XX0
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Decode from VP8 video frame to RGB

In my application, we need to display the video frame on the screen. I use libvpx to decode a video from WebM, but frame is decoded to YUV format (VPX_IMG_FMT_I420 according to the documentation). I need to output format is RGB and the documentation…
Michel_T.
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VP8' Libvpx for android using JNI

I want to use vp8 in my android application , that's why I download libvpx written with C++ , and now I want to connect it to my app with JNI. So the steps I have done Place a libvpx checkout in the jni directory of my app Run the configure script…
Hayk Nahapetyan
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yuv to rgb for libvpx/webm

does anybody know the correct matrices for yuv -> rgb and rgb -> yuv that is used by libvpx/webm? when i use a standard one from wikipedia then my video output looks a bit different to vlc, the colors are stronger.
Jochen
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Already installed ffmpeg, how to add libvpx after the fact

I have ffmpeg already installed on my server for the past 6 months, everything works fine but now it seems I need libvpx to be added to it so I can encode webm files. Is it possible to add this to my current ffmpeg or does it need to be removed and…
Jizbo Jonez
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Getting ABI Version Mismatch initializing LibVPX Encoder

I am getting an error code 3 after calling vpx_codec_enc_init_ver; which appears to be a version mismatch issue. I have deleted libvpx from my machine, and recompiled using the iOS build script several times. At this point I am not sure what is…
wizeOnes
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