Capture FFMPEG output

Question

I need to read the output from ffmpeg in order to even try the solution to my question from yesterday. This is a separate issue from my problem there, so I made a new question. How the heck do I get the output from an `ffmpeg -i` command in PHP? This is what I've been trying: ``` ",$command,"
"; $command = escapeshellcmd($command); echo "backtick:

"; `$command`; echo "

system:

"; echo system($command); echo "

shell_exec:

"; echo shell_exec($command); echo "

passthru:

"; passthru($command); echo "

exec:

"; $output = array(); exec($command,$output,$status); foreach($output AS $o) { echo $o , "
"; } echo "

popen:

"; $handle = popen($command,'r'); echo fread($handle,1048576); pclose($handle); echo "

"; ?> ``` This is my output: ``` /usr/bin/ffmpeg -i…

Accepted Answer

The problem is you catch only stdout and not stderr (see Standard Streams). Change this line:

```
$command = "/usr/bin/ffmpeg -i " . $src;
```

into

```
$command = "/usr/bin/ffmpeg -i " . $src . " 2>&1";
```

and give it another try :)

Capture FFMPEG output

Solution

Problem

Related problems