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autoformat ffmpeg.php

pull/40/head
towards_a_new_leftypol 3 years ago
committed by towards-a-new-leftypol
parent
3fc760640c
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ffdbaa1806
1 changed files with 57 additions and 57 deletions
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  1. 114
      inc/lib/webm/ffmpeg.php

114
inc/lib/webm/ffmpeg.php
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@ -1,65 +1,65 @@
<?php
/*
* ffmpeg.php
* A barebones ffmpeg based webm implementation for vichan.
*/
* ffmpeg.php
* A barebones ffmpeg based webm implementation for vichan.
*/
function get_webm_info($filename) {
global $board, $config;
$filename = escapeshellarg($filename);
$ffprobe = $config['webm']['ffprobe_path'];
$ffprobe_out = array();
$webminfo = array();
exec("$ffprobe -v quiet -print_format json -show_format -show_streams $filename", $ffprobe_out);
$ffprobe_out = json_decode(implode("\n", $ffprobe_out), 1);
$webminfo['error'] = is_valid_webm($ffprobe_out);
if(empty($webminfo['error'])) {
$webminfo['width'] = $ffprobe_out['streams'][0]['width'];
$webminfo['height'] = $ffprobe_out['streams'][0]['height'];
$webminfo['duration'] = $ffprobe_out['format']['duration'];
}
return $webminfo;
global $board, $config;
$filename = escapeshellarg($filename);
$ffprobe = $config['webm']['ffprobe_path'];
$ffprobe_out = array();
$webminfo = array();
exec("$ffprobe -v quiet -print_format json -show_format -show_streams $filename", $ffprobe_out);
$ffprobe_out = json_decode(implode("\n", $ffprobe_out), 1);
$webminfo['error'] = is_valid_webm($ffprobe_out);
if(empty($webminfo['error'])) {
$webminfo['width'] = $ffprobe_out['streams'][0]['width'];
$webminfo['height'] = $ffprobe_out['streams'][0]['height'];
$webminfo['duration'] = $ffprobe_out['format']['duration'];
}
return $webminfo;
}
function is_valid_webm($ffprobe_out) {
global $board, $config;
if (empty($ffprobe_out))
return array('code' => 1, 'msg' => $config['error']['genwebmerror']);
$extension = pathinfo($ffprobe_out['format']['filename'], PATHINFO_EXTENSION);
if ($extension === 'webm') {
if ($ffprobe_out['format']['format_name'] != 'matroska,webm')
return array('code' => 2, 'msg' => $config['error']['invalidwebm']);
} elseif ($extension === 'mp4') {
if ($ffprobe_out['streams'][0]['codec_name'] != 'h264' && $ffprobe_out['streams'][1]['codec_name'] != 'aac')
return array('code' => 2, 'msg' => $config['error']['invalidwebm']);
} else {
return array('code' => 1, 'msg' => $config['error']['genwebmerror']);
}
if ((count($ffprobe_out['streams']) > 1) && (!$config['webm']['allow_audio']))
return array('code' => 3, 'msg' => $config['error']['webmhasaudio']);
if (empty($ffprobe_out['streams'][0]['width']) || (empty($ffprobe_out['streams'][0]['height'])))
return array('code' => 2, 'msg' => $config['error']['invalidwebm']);
if ($ffprobe_out['format']['duration'] > $config['webm']['max_length'])
return array('code' => 4, 'msg' => sprintf($config['error']['webmtoolong'], $config['webm']['max_length']));
global $board, $config;
if (empty($ffprobe_out))
return array('code' => 1, 'msg' => $config['error']['genwebmerror']);
$extension = pathinfo($ffprobe_out['format']['filename'], PATHINFO_EXTENSION);
if ($extension === 'webm' && !stristr($ffprobe_out['format']['format_name'], 'mp4')) {
if ($ffprobe_out['format']['format_name'] != 'matroska,webm')
return array('code' => 2, 'msg' => $config['error']['invalidwebm']."error 1");
} elseif ($extension === 'mp4') {
if ($ffprobe_out['streams'][0]['codec_name'] != 'h264' && $ffprobe_out['streams'][1]['codec_name'] != 'aac')
return array('code' => 2, 'msg' => $config['error']['invalidwebm']."error 2");
} else {
return array('code' => 1, 'msg' => $config['error']['genwebmerror']."error 3");
}
if ((count($ffprobe_out['streams']) > 1) && (!$config['webm']['allow_audio']))
return array('code' => 3, 'msg' => $config['error']['webmhasaudio']."error 4");
if (empty($ffprobe_out['streams'][0]['width']) || (empty($ffprobe_out['streams'][0]['height'])))
return array('code' => 2, 'msg' => $config['error']['invalidwebm']."error 5");
if ($ffprobe_out['format']['duration'] > $config['webm']['max_length'])
return array('code' => 4, 'msg' => sprintf($config['error']['webmtoolong'], $config['webm']['max_length'])."error 6");
}
function make_webm_thumbnail($filename, $thumbnail, $width, $height, $duration) {
global $board, $config;
$filename = escapeshellarg($filename);
$thumbnailfc = escapeshellarg($thumbnail); // Should be safe by default but you
// can never be too safe.
$width = escapeshellarg($width);
$height = escapeshellarg($height); // Same as above.
$ffmpeg = $config['webm']['ffmpeg_path'];
$ret = 0;
$ffmpeg_out = array();
exec("$ffmpeg -strict -2 -ss " . floor($duration / 2) . " -i $filename -v quiet -an -vframes 1 -f mjpeg -vf scale=$width:$height $thumbnailfc 2>&1", $ffmpeg_out, $ret);
// Work around for https://trac.ffmpeg.org/ticket/4362
if (filesize($thumbnail) === 0) {
// try again with first frame
exec("$ffmpeg -y -strict -2 -ss 0 -i $filename -v quiet -an -vframes 1 -f mjpeg -vf scale=$width:$height $thumbnailfc 2>&1", $ffmpeg_out, $ret);
clearstatcache();
// failed if no thumbnail size even if ret code 0, ffmpeg is buggy
if (filesize($thumbnail) === 0) {
$ret = 1;
}
}
return $ret;
global $board, $config;
$filename = escapeshellarg($filename);
$thumbnailfc = escapeshellarg($thumbnail); // Should be safe by default but you
// can never be too safe.
$width = escapeshellarg($width);
$height = escapeshellarg($height); // Same as above.
$ffmpeg = $config['webm']['ffmpeg_path'];
$ret = 0;
$ffmpeg_out = array();
exec("$ffmpeg -strict -2 -ss " . floor($duration / 2) . " -i $filename -v quiet -an -vframes 1 -f mjpeg -vf scale=$width:$height $thumbnailfc 2>&1", $ffmpeg_out, $ret);
// Work around for https://trac.ffmpeg.org/ticket/4362
if (filesize($thumbnail) === 0) {
// try again with first frame
exec("$ffmpeg -y -strict -2 -ss 0 -i $filename -v quiet -an -vframes 1 -f mjpeg -vf scale=$width:$height $thumbnailfc 2>&1", $ffmpeg_out, $ret);
clearstatcache();
// failed if no thumbnail size even if ret code 0, ffmpeg is buggy
if (filesize($thumbnail) === 0) {
$ret = 1;
}
}
return $ret;
}

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