ziedinjsh Posted January 18, 2014 Report Share Posted January 18, 2014 Sveiki! Man ir neliela ķibele. Ir kods kurš augšupielādējot izveidot mp3 faila waveform bildi. Funkcija strādā, bildi izveidot un parāda, bet ir lieta tādā, ka viņa nesaglabājās! Cik pa google vandījos tad tas esot jādara šādi imagepng($bilde, $vieta_kur_saglabāt); bet tas nestrādā! Kods: <?php function waveform($id, $file){ ini_set("max_execution_time", "30000"); // how much detail we want. Larger number means less detail // (basically, how many bytes/frames to skip processing) // the lower the number means longer processing time define("DETAIL", 1); define("DEFAULT_WIDTH", 600); define("DEFAULT_HEIGHT", 50); define("DEFAULT_FOREGROUND", "#666666"); define("DEFAULT_BACKGROUND", "#FFFFFF"); /** * GENERAL FUNCTIONS */ function findValues($byte1, $byte2){ $byte1 = hexdec(bin2hex($byte1)); $byte2 = hexdec(bin2hex($byte2)); return ($byte1 + ($byte2*256)); } /** * Great function slightly modified as posted by Minux at * http://forums.clantemplates.com/showthread.php?t=133805 */ function html2rgb($input) { $input=($input[0]=="#")?substr($input, 1,6):substr($input, 0,6); return array( hexdec(substr($input, 0, 2)), hexdec(substr($input, 2, 2)), hexdec(substr($input, 4, 2)) ); } /** * PROCESS THE FILE */ // temporary file name $tmpname = substr(md5(time()), 0, 10); // copy from temp upload directory to current copy($file, "{$tmpname}_o.mp3"); // support for stereo waveform? $stereo = isset($_POST["stereo"]) && $_POST["stereo"] == "on" ? true : false; // array of wavs that need to be processed $wavs_to_process = array(); /** * convert mp3 to wav using lame decoder * First, resample the original mp3 using as mono (-m m), 16 bit (-b 16), and 8 KHz (--resample 8) * Secondly, convert that resampled mp3 into a wav * We don't necessarily need high quality audio to produce a waveform, doing this process reduces the WAV * to it's simplest form and makes processing significantly faster */ if ($stereo) { // scale right channel down (a scale of 0 does not work) exec("lame {$tmpname}_o.mp3 --scale-r 0.1 -m m -S -f -b 16 --resample 8 {$tmpname}.mp3 && lame -S --decode {$tmpname}.mp3 {$tmpname}_l.wav"); // same as above, left channel exec("lame {$tmpname}_o.mp3 --scale-l 0.1 -m m -S -f -b 16 --resample 8 {$tmpname}.mp3 && lame -S --decode {$tmpname}.mp3 {$tmpname}_r.wav"); $wavs_to_process[] = "{$tmpname}_l.wav"; $wavs_to_process[] = "{$tmpname}_r.wav"; } else { exec("lame {$tmpname}_o.mp3 -m m -S -f -b 16 --resample 8 {$tmpname}.mp3 && lame -S --decode {$tmpname}.mp3 {$tmpname}.wav"); $wavs_to_process[] = "{$tmpname}.wav"; } // delete temporary files unlink("{$tmpname}_o.mp3"); unlink("{$tmpname}.mp3"); // get user vars from form $width = isset($_POST["width"]) ? (int) $_POST["width"] : DEFAULT_WIDTH; $height = isset($_POST["height"]) ? (int) $_POST["height"] : DEFAULT_HEIGHT; $foreground = isset($_POST["foreground"]) ? $_POST["foreground"] : DEFAULT_FOREGROUND; $background = isset($_POST["background"]) ? $_POST["background"] : DEFAULT_BACKGROUND; $draw_flat = isset($_POST["flat"]) && $_POST["flat"] == "on" ? true : false; $img = false; // generate foreground color list($r, $g, $b) = html2rgb($foreground); // process each wav individually for($wav = 1; $wav <= sizeof($wavs_to_process); $wav++) { $filename = $wavs_to_process[$wav - 1]; $handle = fopen($filename, "r"); // wav file header retrieval $heading[] = fread($handle, 4); $heading[] = bin2hex(fread($handle, 4)); $heading[] = fread($handle, 4); $heading[] = fread($handle, 4); $heading[] = bin2hex(fread($handle, 4)); $heading[] = bin2hex(fread($handle, 2)); $heading[] = bin2hex(fread($handle, 2)); $heading[] = bin2hex(fread($handle, 4)); $heading[] = bin2hex(fread($handle, 4)); $heading[] = bin2hex(fread($handle, 2)); $heading[] = bin2hex(fread($handle, 2)); $heading[] = fread($handle, 4); $heading[] = bin2hex(fread($handle, 4)); // wav bitrate $peek = hexdec(substr($heading[10], 0, 2)); $byte = $peek / 8; // checking whether a mono or stereo wav $channel = hexdec(substr($heading[6], 0, 2)); $ratio = ($channel == 2 ? 40 : 80); // start putting together the initial canvas // $data_size = (size_of_file - header_bytes_read) / skipped_bytes + 1 $data_size = floor((filesize($filename) - 44) / ($ratio + $byte) + 1); $data_point = 0; // now that we have the data_size for a single channel (they both will be the same) // we can initialize our image canvas if (!$img) { // create original image width based on amount of detail // each waveform to be processed with be $height high, but will be condensed // and resized later (if specified) $img = imagecreatetruecolor($data_size / DETAIL, $height * sizeof($wavs_to_process)); // fill background of image if ($background == "") { // transparent background specified imagesavealpha($img, true); $transparentColor = imagecolorallocatealpha($img, 0, 0, 0, 127); imagefill($img, 0, 0, $transparentColor); } else { list($br, $bg, $bb) = html2rgb($background); imagefilledrectangle($img, 0, 0, (int) ($data_size / DETAIL), $height * sizeof($wavs_to_process), imagecolorallocate($img, $br, $bg, $bb)); } } while(!feof($handle) && $data_point < $data_size){ if ($data_point++ % DETAIL == 0) { $bytes = array(); // get number of bytes depending on bitrate for ($i = 0; $i < $byte; $i++) $bytes[$i] = fgetc($handle); switch($byte){ // get value for 8-bit wav case 1: $data = findValues($bytes[0], $bytes[1]); break; // get value for 16-bit wav case 2: if(ord($bytes[1]) & 128) $temp = 0; else $temp = 128; $temp = chr((ord($bytes[1]) & 127) + $temp); $data = floor(findValues($bytes[0], $temp) / 256); break; } // skip bytes for memory optimization fseek($handle, $ratio, SEEK_CUR); // draw this data point // relative value based on height of image being generated // data values can range between 0 and 255 $v = (int) ($data / 255 * $height); // don't print flat values on the canvas if not necessary if (!($v / $height == 0.5 && !$draw_flat)) // draw the line on the image using the $v value and centering it vertically on the canvas imageline( $img, // x1 (int) ($data_point / DETAIL), // y1: height of the image minus $v as a percentage of the height for the wave amplitude $height * $wav - $v, // x2 (int) ($data_point / DETAIL), // y2: same as y1, but from the bottom of the image $height * $wav - ($height - $v), imagecolorallocate($img, $r, $g, $b) ); } else { // skip this one due to lack of detail fseek($handle, $ratio + $byte, SEEK_CUR); } } // close and cleanup fclose($handle); // delete the processed wav file unlink($filename); } header("Content-Type: image/png"); chmod('../../mp3/',0777); // want it resized? if ($width) { // resample the image to the proportions defined in the form $rimg = imagecreatetruecolor($width, $height); // save alpha from original image imagesavealpha($rimg, true); imagealphablending($rimg, false); // copy to resized imagecopyresampled($rimg, $img, 0, 0, 0, 0, $width, $height, imagesx($img), imagesy($img)); imagepng($rimg); imagedestroy($rimg); } else { imagepng($img, '../../mp3/'); } imagedestroy($img); } P.S. Paldies jau iepriekš Link to comment Share on other sites More sharing options...
ziedinjsh Posted January 18, 2014 Author Report Share Posted January 18, 2014 Paldies, varat slēgt ciet! Atrisināju imagepng($bilde, $vieta_kur_saglabā.$bildes_nosaukums.'.png'); Link to comment Share on other sites More sharing options...
blackhalt Posted January 19, 2014 Report Share Posted January 19, 2014 Manuāli ir rakstīts: http://lv.php.net/manual/en/function.imagepng.php Link to comment Share on other sites More sharing options...
Recommended Posts