bitrate

I've been trying to read some values out of the metadata of a .mov file (QuickTime File Format) with limited success. I've been using the following link as a reference: Introduction to QuickTime File Format Specification I've managed to correctly locate and read out/calculate the media duration, but I can't seem to find which Atom the Bit Rate information is stored in. (Atoms are the internal blocks of metadata inside the file). If anyone can point me to the correct Atom to read, I'll be alright reading it... I just can't seem to find it in the documentation even. "Bit Rate" is only mentioned

I am transcoding a video using FFMPEG API in c code. I am trying to set the video bit rate using the ffmpeg API as shown below: ovCodecCtx->bit_rate = 100 * 1000; The Encoder I am using is libx264. But this parameter is not taken into effect and the resulting video quality is very bad. I have even tried setting related parameters like rc_min_rate, rc_max_rate, etc.. but the video quality is still very low as these related parameters are not taken into effect. Could any expert tell how one can set the bit rate correctly using the FFMPEG API? Thanks I have found the solution to my problem. In

I use FFMPEG (command line Input) to convert my videos to a specific output format. The problem I am facing is when I try to pass a constant bit rate(700 kbps) to FFMPEG, the result is an output video with a different bit rate(say 1000 kbps). This phenomenon occurs invariably for all videos.Why is this happening? I need to maintain a constant bit rate. Can anyone help me out. My FFMPEG version is 0.5 The command line parameter which I am passing to FFMPEG is, -i {inputfile} -b 700k -ab 64k -vcodec libx264 -acodec libfaac -ac 2 -ar 44100 -y -s 320x240 {outputfile} EDIT: I was able to force CBR

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 that this property shows the value of download rate of a segment .I need to know the bit rate at which the player is playing the stream. The graph below shows Observed bit vs Indicated bit rate for the LIVE stream. Kindly give your suggestion on this issue. I tried the following link but no luck : https://stackoverflow.com/a/14845997/1730345 .

Currently, I'm using mic.rate = 100; This only gives 63kbps. Is it possible for Flash AS3 to set bitrate higher than 63kbps? From the docs Acceptable values are 5, 8, 11, 22, and 44 So enter one of those. And it's measured in kHz, not kbps, also according to the docs It's flash. Great quality also depends on users' hardware. You didn't post full settings for your microphone. Also value that you are using isn't valid. Here a small snippet, for mic settings, that will give you good enough results: var micOptions : MicrophoneEnhancedOptions = new MicrophoneEnhancedOptions(); micOptions.echoPath =

I wrote the following wrapper for FFMPEG: function Video($input, $crop = null, $scale = null, $output = null, $extra = null) { $input = @new ffmpeg_movie($input); if ((is_object($input) === true) && ($input->hasVideo() === true)) { $size = array($input->getFrameWidth(), $input->getFrameHeight()); $crop = array_values(array_filter(explode('/', $crop), 'is_numeric')); $scale = array_values(array_filter(explode('*', $scale), 'is_numeric')); if ((is_callable('shell_exec') === true) && (is_executable($ffmpeg = trim(shell_exec('which ffmpeg'))) === true)) { if (count($crop) == 2) { $crop = array(