Hi, I need to get the bit rate of a mp3 file which is being streamed as a netstream object in flash action scripting. I am using Flash Media Server 3.2. I need the bitrate to calculate the duration of the mp3 file using the formula: Duration = file size in bytes / bitrate ...
I have a engine to check the H264 video is compliance with AVCHD or BDMV spec, the SPEC mentions the MAX system data rate is up to 24 Mbit/s, I want to know how to calculate the system data rate? Does it mean the average of whole file? Or does it mean the average of 1 second? ...
I inherited a project that is sending videos off to a remote encoder to encode into FLVs. Today, I noticed that we are asking them to encode at 1024kbps To me, this seems extremely high. What is everyone else using? What is YouTube using for "standard" vs. "high quality" versions? Thank you in advance. ...
What bit-rate (approximately) can I expect MPEG encoders to produce for 160x120 "ok-quality" webcam stream? How much CPU-demanding will the encoding be? The decoding? Are there any better encoding formats for that purpose? (In terms of bit-rate or CPU) ...
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 contain bitrate info. I would try to manualy get this from raw data in case of mp3, but I need t...
I need to programatically convert mp3's of any bitrate to a standard bitrate for streaming audio using c#. Currently a buffer is populated with mp3 data from disk and then send out to the "listeners" at what should be a constant speed (the broadcast), but the mp3's could be of any bitrate. This makes timing extremely difficult and should...
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, probably. However, the video should be "understandable", and the frame rate should be suffi...
How can you list all files (recursively) within a directory where the file (audio) bit rate is greater than 32kbps using powershell? ...
I would like to know the size of the movie I am watching on any video site [ if not possible on all video sites, then at least on YouTube ]. So is it possible, say I will specify the complete path like: 'http://www.youtube.com/watch?v=7xyuX7u-Xts' , to calculate the size of the Flash video (.flv) using JavaScript? Note *By saying size I...
I have experimented with a technique that involves a web page request which you use to calculate the bit-rate based on bytes divided by the time elapsed. You can average multiple data points of course, but is this as accurate of a bit-rate estimation that can be made? Do any professional or less hackish techniques exists? (Or is this ju...
Hi experts , (Excuse for My english it's freak i´m from LA) I'm trying to finish a trascoding process in VB6.0 , i'm working with ffmpeg , its a very good transcoder , to finish the project i want a progress bar for the trascoding process but it's so very hard , first i need to understand , how a program can calculate the time remaining ...
Hi- I'm stumped on this, and I'm really hoping someone could point me in the right direction. I'm currently capturing video in Windows Mobile and encoding it using the WMV 9 DMO (CLSID_CWMV9EncMediaObject). That all works well enough, but the output video's bitrate is too high, resulting in a video file that's much too large for my nee...
Well, i was looking forward to modify the bit rate of a mp3 file in java. I want to downsample(change its bit rate) the mp3 file from 256/384 kbps to say 64/128 kbps.. (I guess this is the only way one can achieve mp3 compression..or is there any other way.?) I searched for LameOnJ but that website is temperoraly down and so im not a...
Hi all, I have the following situation: I have a video file that I get from a live stream. Then I want to convert the file to a different bitrate using ffmpeg, but unfortunately ffmpeg resets the start time of the video, which breaks my application, since it needs to know the start time of each video (and these of course should be diffe...
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 just need to know if I'm right or missing anything. For Kbps: Resolution * Framerate / ...
Hi, I'm trying to get the bitrate of a video stream with Cocoa. Not the bitrate of the overall file but just the stream. I've looked at QTKit's documentation but I couldn't find anything to do this.. ...
I am using quicktime and streaming video. In the Movie Inspector view it shows the current bitrate. Is there some tool that would take this bitrate and record it over time and store it for future analysis? Say in excel or some similar tool maybe? ...
I am passing to the source property of a VideoDisplay component a DynamicStreamingVideoSource object with 3 different dynamic live stream items, described by this XML, for your consideration: src="rtmp://88.87.56.214:1935/live/fashiontv_tmo_h.stream" bitrate="19200" src="rtmp://88.87.56.214:1935/live/fashiontv_tmo_m.stream" bitrate=...
Anyone managed to calculate this? ...
Hi there, I've setup a sending NetStream connection in Actionscript 3 for Flash. I would like to automatically select the highest possible encoding quality for transmission. To do so, I need to get the approximate possible outgoing bitrate (the "upload" speed) and then choose the corresponding quality. My question is, how do I approxi...