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Questions tagged [bitrate]

Bitrate is the number of bits that are conveyed or processed per unit of time.

Bitrate is the number of bits that are conveyed or processed per unit of time.

More information at https://en.wikipedia.org/wiki/Bit_rate

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How to get MP3 file Bitrate ? (Delphi)

how can i get bitrate of a MP3 File ?
Kermia
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ffmpeg calculate video bitrate

I would like to know how to calculate the bitrate of this video: http://jell.yfish.us/media/jellyfish-30-mbps-hd-hevc.mkv Video details: jellyfish-30-mbps-hd-hevc Video details From MediaInfo I used Format Factory 4.0.0 to convert *.mkv video to…
MPM Уеб Дизайн
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How to find AVPlayer current bitrate

I am trying to fetch bit rate at which the AVPlayer is playing the video stream . I tried with observed bit rate property of AVPlayerItemAccessLogEvent , but it gives very high value.After exploring further on Observed-bit-rate property I understood…
karthik
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Record video with MediaCodec and MediaMuxer, but the bitrate and framerate are incorrect

I wrote a demo to record a video using MediaCodec and MediaMuxer. I record a video with my demo and use ffprobe to check the video, the result is as follows: Duration: 00:00:06.86, start: 0.000000, bitrate: 723 kb/s Stream #0:0(eng): Video: h264…
dragonfly
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Why bandwidth is measured in bits per second?

According to the definition of the bandwidth, it is the width of the frequency spectrum. Hence bandwidth should be measured in Hz. But bps, Mbps, kbps have been used as the measurement of bandwidth almost everywhere. What I need to know is, …
buddhi weerasinghe
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Python decode MP3 in chunks on Mac OS

I have a Tornado Python server which accepts a variable bitrate mp3 file one chunk at a time (the chunks are made up of a fixed number of frames). All I am doing is passing that binary forward, however, I want to know the duration of the chunk.…
JonathanC
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Very low bitrate video codec?

I was wondering if there are any video codecs out there that are suited for extremely low bitrates, especially for webcam input? Throwing around some numbers: let's say a 160x120 stream that will result around 32kbps or so. Quality will be poor,…
Hammer
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How to determine .mp3 bit rate without downloading it?

I have a list of .mp3 files over the web and I would like to get the highest quality file. Quality in multimedia files equals the bit rate of them. The bit rate itself should be found in the file's headers. If not, length of the audio track could be…
iTayb
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How to get bitrate of audio file in cocoa

I need to get bitrate information from audio files, for some reason AudioFileGetProperty function with kAudioFilePropertyBitRate constant always returns 0 for me. The same with kAudioFilePropertyInfoDictionary, the resulting dictionary doesnt…
stackzerad
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FFMPEG - Difference between "-ab" and "-b:a"

As far as i know both Commandline Args change the Audio Bitrate, but ime not exactly sure because i have also seen them in combination. Basically i couldn't find any Documentation that explains both of these Commands. It could also be that -ab got…
Playa
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ffmpeg conversion increase bitrate

When extracting Audio streams using ffmpeg from containers such as MP4, how does ffmpeg increase bitrate, if it is higher than the source bitrate? An example might be ffmpeg -i video.mp4 -f mp3 -ab 256000 -vn music.mp3. What does ffmpeg do if the…
user3386373
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Ffmpeg creating m3u8 from mp4, video file size

I am using ffmpeg to convert mp4 to m3u8. But first I need to make mp4 smaller. I use this code to make it smaller: ffmpeg -i big.mp4 -b 1000000 small.mp4 Then I use this code to convert it to m3u8 ffmpeg -i small.mp4 -g 60 -hls_time 2…
cvdogan
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How can I get the same bitrate of input and output file in pydub?

I've use pydub to output a file(chop the file into shorter one), everything is great, but the bitrate has changed from 256k to 124k(why I will get this number instead 128k?). I know that AudioSegment has an argument to set bitrate, but I just want…
Leo Hsieh
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Formula for Live Video Streaming Bitrate

I am simply looking for the formula that should be used here. All the results I've found base "finding the bitrate" off of already existing video. I'm talking about LIVE streaming. (indeterminate length) So, I know some basic parts of it, but I…
Matt D
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MPMoviePlayerController MovieAccessLogEvent - Inflated observedBitrate

I am currently working with the MPMoviePlayerController and am analysing metrics for video playback. Specifically, analysing adaptive bitrates. As part of testing I load a particular rendition of the video at a fixed bitrate (995kbps), however when…
Tim
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