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Questions tagged [vp8]

VP8 is a video compression format owned by Google, encoded with the libvpx software library, and released under a 3-clause BSD license.

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How to configure/enable libvpx config file for x64-win64-gcc in cygwin?

User@DESKTOP-H6N1GOG /cygdrive/c/libvpx $ ./configure --enable-unit-tests enabling unit_tests enabling vp8_encoder enabling vp8_decoder enabling vp9_encoder enabling vp9_decoder Configuring for target 'x86-win32-gcc' enabling x86 enabling…
Md. Alif Al Amin
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Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead

I am using web video server with ros eloquent in ubuntu 18 LTS. When I try to access vp8 or vp9 or h264 stream from web video server, I will get below error and I cant able to play the video in the web browser. Using AVStream.codec to pass codec…
Praveen Deshmane
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How to trim webm video while preserving transparency

I want to trim a transparent webm video using ffmpeg. Here's the ffprobe result for that video: Input #0, matroska,webm, from 'template.webm': Metadata: ENCODER : Lavf58.29.100 Duration: 00:00:05.24, start: -0.002000, bitrate: 2856…
sy_ar001
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How can I continue recording a video stream (webm, vp8) to an existing file (using C#)?

Encountered the following problem: From the client side using websocket I drive the video bit by bit to the server: mediaRecorder.ondataavailable = function (e) { if (ws && ws.readyState === WebSocket.OPEN && e.data && e.data.size > 0) { …
Jericho
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vpx_codec_decode return true but vpx_codec_get_frame return no frame

I want to make a player that can run webm(vp8/vp9) files. I make the player so that every time it finds a cluster send the cluster to the decoder and put all frames into memory. Something strange happens, if I call the same cluster more times the…
Silviu Petrut
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Finding lossy / lossless VP8X bitstream

I am using the Go WebP decoder and it's giving me all the information that I am after except for one. According to the WebP spec, VP8X signifies the extended file format. As part of this there seems to be a "A bitstream chunk may be either (i) a VP8…
Tamas
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Use ffmpeg to stream VP8 encoded video over RTP

I was able to create an mpeg encoded SRTP stream with ffmpeg, however I need to be able to stream VP8 encoded video. This is the command I used to create an SRTP stream ffmpeg -re -i BigBuckBunny.mp4 -f rtp_mpegts -acodec mp3 -srtp_out_suite…
lilroo
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Stream through gstreamer using GPU in Windows

I'm trying to stream in windows through the next pipeline of gstreamer: gst-launch-1.0 -v -m ksvideosrc do-stats=TRUE ! videoconvert ! video/x-raw ! vp8enc threads=4 ! rtpvp8pay ! udpsink host=224.1.1.1 port=5000 auto-multicast=true But this…
sej
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Where to get algorithm on vp8 encoding algorithm ?(at least base profile)

I tried search on official Google WebM site but have found nohing... What I need is simple - step by step algorithm of encoding process - from images to encoded video. Where to get such detailed algorithm (not digging into source)?
Rella
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Converting vídeo from vp8 to x264 outputs different video with different length

I have a webm file (vp8 codec) with 2m:39s of duration Using ffmpeg -i video.webm it says that the video have 15fps nput #0, matroska,webm, from 'video.webm': Metadata: encoder : Lavf54.17.3 Duration: 00:02:39.63, start:…
Thomas Anderson
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Transcoding from VP8 to H264 is not working using fluent-ffmpeg library using node.js

I have tried transcoding stream from VP8 to H264 using command line it's working fine but when I tried the same thing using fluent-ffmpeg it is not working as expected. Version information fluent-ffmpeg version: "2.1.2" ffmpeg version:…
Mihir Patel
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ffmpeg codec conversion; can't configure encoder

I am simply trying to convert a vp9 webm I have into a vp8 webm. this is the command I'm using. ffmpeg -i in.webm -c:v vp8 out.webm the vp8 encoder returns a strange error Input #0, matroska,webm, from 'in.webm': Metadata: encoder :…
PerfectChaos7
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How to encode pixels from buffer to h.264 or VP8

I have a application (qt c++) that reads data from USB-device, decodes that data into 24bit RGB pixels which are stored in a uchar array. Framerate is ~10 FPS. Framesize is 128x4096. Question is: How to encode these frames into VP8 or h.264 video in…
John Dittor
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vp8 rtp packetization data overwritten by srtp_protect

I am using libsrtp for srtp encryption in a webrtc call. After I prepare RTP packet, I call srtp_protect to encrypt it. It encrypts the data part and keeps RTP header as it is. This was working fine till now with audio only calls. Now I am…
Austin
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Actual Twilio video bitrate not matching the maxVideoBitrate set

I am using twilio to build a video chat app. I am setting the maxVideoBitrate as follows: navigator.mediaDevices.getUserMedia({ audio: true, video: {width: 320} }) .then(function (mediaStream) { …
lightbringer
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