Add fragmented MP4 format support #31

Minor improvements

Author: aminyazdanpanah

src/AutoRepresentations.php

@@ -134,7 +134,7 @@ private function getKiloBitrateValues(?array $k_bitrate_values): void
      */
     private function getSideValues(?array $side_values): void
     {
-        if (!empty($side_values)) {
+        if (!is_null($side_values)) {
             $this->side_values = $side_values;
             return;
         }

src/Filters/HLSFilter.php

@@ -36,7 +36,8 @@ private function HLSFilter(HLS $hls): array
         $reps = $hls->getRepresentations();
         $path_parts = $hls->getPathInfo();
         $dirname = str_replace("\\", "/", $path_parts["dirname"]);
-        list($ts_sub_dir, $base_url) = $this->getSubDirectory($hls, $dirname);
+        list($seg_sub_dir, $base_url) = $this->getSubDirectory($hls, $dirname);
+        $full_seg_filename = $dirname . "/" . $seg_sub_dir . $path_parts["filename"];
 
         foreach ($reps as $key => $rep) {
             if ($key) {
@@ -64,8 +65,12 @@ private function HLSFilter(HLS $hls): array
             $filter = array_merge($filter, $this->getAudioBitrate($rep));
             $filter[] = "-maxrate";
             $filter[] = intval($rep->getKiloBitrate() * 1.2) . "k";
+            $filter[] = "-hls_segment_type";
+            $filter[] = $hls->getHlsSegmentType();
+            $filter[] = "-hls_fmp4_init_filename";
+            $filter[] = $path_parts["filename"] . "_" . $hls->getHlsFmp4InitFilename();
             $filter[] = "-hls_segment_filename";
-            $filter[] = $dirname . "/" . $ts_sub_dir . $path_parts["filename"] . "_" . $rep->getHeight() . "p_%04d.ts";
+            $filter[] = $this->getSegmentFilename($full_seg_filename, $rep, $hls->getHlsSegmentType());
             $filter = array_merge($filter, $this->getBaseURL($base_url));
             $filter = array_merge($filter, $this->getKeyInfo($hls));
             $filter = array_merge($filter, $hls->getAdditionalParams());
@@ -135,4 +140,16 @@ private function getAudioBitrate(Representation $rep): array
     {
         return $rep->getAudioKiloBitrate() ? ["-b:a", $rep->getAudioKiloBitrate() . "k"] : [];
     }
+
+    /**
+     * @param string $full_seg_filename
+     * @param Representation $rep
+     * @param string $type
+     * @return string
+     */
+    private function getSegmentFilename(string $full_seg_filename, Representation $rep, string $type): string
+    {
+        $ext = ($type === "fmp4") ? "m4s" : "ts";
+        return $full_seg_filename . "_" . $rep->getHeight() . "p_%04d." . $ext;
+    }
 }

src/HLS.php

@@ -40,6 +40,12 @@ class HLS extends Streaming
     /** @var string */
     public $master_playlist;
 
+    /** @var string */
+    private $hls_segment_type = 'mpegts';
+
+    /** @var string */
+    private $hls_fmp4_init_filename = "init.mp4";
+
     /** @var array */
     private $stream_info = [];
 
@@ -179,6 +185,42 @@ public function setMasterPlaylist(string $master_playlist, array $stream_info =
         return $this;
     }
 
+    /**
+     * @param string $hls_segment_type
+     * @return HLS
+     */
+    public function setHlsSegmentType(string $hls_segment_type): HLS
+    {
+        $this->hls_segment_type = $hls_segment_type;
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getHlsSegmentType(): string
+    {
+        return $this->hls_segment_type;
+    }
+
+    /**
+     * @param string $hls_fmp4_init_filename
+     * @return HLS
+     */
+    public function setHlsFmp4InitFilename(string $hls_fmp4_init_filename): HLS
+    {
+        $this->hls_fmp4_init_filename = $hls_fmp4_init_filename;
+        return $this;
+    }
+
+    /**
+     * @return string
+     */
+    public function getHlsFmp4InitFilename(): string
+    {
+        return $this->hls_fmp4_init_filename;
+    }
+
     /**
      * @return Filter
      */