Start transcoding server

lib/Command/VideoSetup.php

@@ -50,8 +50,14 @@ class VideoSetup extends Command
 
     protected function execute(InputInterface $input, OutputInterface $output): int
     {
+        // Check nohup binary
+        $nohup = shell_exec('nohup --version');
+        if (!$nohup || strpos($nohup, 'nohup') === false) {
+            $output->writeln('<error>nohup binary not found. Please install nohup.</error>');
+            return $this->suggestDisable($output);
+        }
+
         // Get ffmpeg version
-        $output->writeln('Checking for ffmpeg binary');
         $ffmpeg = shell_exec('ffmpeg -version');
         if (false === strpos($ffmpeg, 'ffmpeg version')) {
             $ffmpeg = null;
@@ -61,7 +67,6 @@ class VideoSetup extends Command
         }
 
         // Get ffprobe version
-        $output->writeln('Checking for ffprobe binary');
         $ffprobe = shell_exec('ffprobe -version');
         if (false === strpos($ffprobe, 'ffprobe version')) {
             $ffprobe = null;
@@ -102,8 +107,11 @@ class VideoSetup extends Command
         $output->writeln('go-transcode is installed!');
         $output->writeln('');
         $output->writeln('You can use transcoding and HLS streaming');
-        $output->writeln('This is recommended for better performance, but not for very slow systems');
-        $output->writeln('For more details see: https://github.com/pulsejet/memories/wiki/Configuration');
+        $output->writeln('This is recommended for better performance, but has implications if');
+        $output->writeln('you are using external storage or run Nextcloud on a slow system.');
+        $output->writeln('');
+        $output->writeln('Read the following documentation carefully before continuing:');
+        $output->writeln('https://github.com/pulsejet/memories/wiki/Configuration');
         $output->writeln('');
         $output->writeln('Do you want to enable transcoding and HLS? [Y/n]');
 
@@ -115,7 +123,10 @@ class VideoSetup extends Command
             return 0;
         }
 
+        $tConfig = realpath(__DIR__."/../../transcoder.yaml");
+
         $this->config->setSystemValue('memories.transcoder', $goTranscodePath);
+        $this->config->setSystemValue('memories.transcoder_config', $tConfig);
         $this->config->setSystemValue('memories.no_transcode', false);
         $output->writeln('Transcoding and HLS are now enabled!');
 

lib/Controller/VideoController.php

@@ -49,7 +49,7 @@ class VideoController extends ApiBase
         }
 
         // Make sure not running in read-only mode
-        if ($this->config->getSystemValue('memories.no_transcode', false)) {
+        if ($this->config->getSystemValue('memories.no_transcode', 'UNSET') !== false) {
             return new JSONResponse(['message' => 'Transcoding disabled'], Http::STATUS_FORBIDDEN);
         }
 
@@ -71,15 +71,35 @@ class VideoController extends ApiBase
             return new JSONResponse(['message' => 'File not found'], Http::STATUS_NOT_FOUND);
         }
 
+        // Check if file starts with temp dir
+        $tmpDir = sys_get_temp_dir();
+        if (0 === strpos($path, $tmpDir)) {
+            return new JSONResponse(['message' => 'File is in temp dir!'], Http::STATUS_NOT_FOUND);
+        }
+
         // Make upstream request
-        $ch = curl_init("http://localhost:9999/vod/{$path}/{$profile}");
-        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
-        curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
-        curl_setopt($ch, CURLOPT_HEADER, 0);
-        $data = curl_exec($ch);
-        $contentType = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
-        $returnCode = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
-        curl_close($ch);
+        [$data, $contentType, $returnCode] = $this->getUpstream($path, $profile);
+
+        // If status code was 0, it's likely the server is down
+        // Make one attempt to start if we can't find the process
+        if (0 === $returnCode) {
+            $transcoder = $this->config->getSystemValue('memories.transcoder', false);
+            $tConfig = $this->config->getSystemValue('memories.transcoder_config', false);
+            if (!$transcoder || !$tConfig) {
+                return new JSONResponse(['message' => 'Transcoder not configured'], Http::STATUS_INTERNAL_SERVER_ERROR);
+            }
+
+            // Check if already running
+            exec('ps a | grep go-transcode | grep -v grep', $procs);
+            if (0 === \count($procs)) {
+                shell_exec("mkdir -p $tmpDir/transcoder"); // php func has some weird problems
+                shell_exec("nohup $transcoder serve --config $tConfig > $tmpDir/transcoder/run.log 2>&1 & > /dev/null");
+            }
+
+            // wait for 2s and try again
+            sleep(2);
+            [$data, $contentType, $returnCode] = $this->getUpstream($path, $profile);
+        }
 
         // Check data was received
         if ($returnCode >= 400 || false === $data) {
@@ -94,4 +114,16 @@ class VideoController extends ApiBase
 
         return $response;
     }
+
+    private function getUpstream($path, $profile) {
+        $ch = curl_init("http://localhost:47788/vod/{$path}/{$profile}");
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_1);
+        curl_setopt($ch, CURLOPT_HEADER, 0);
+        $data = curl_exec($ch);
+        $contentType = curl_getinfo($ch, CURLINFO_CONTENT_TYPE);
+        $returnCode = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
+        curl_close($ch);
+        return [$data, $contentType, $returnCode];
+    }
 }

scripts/bundle.sh

@@ -4,7 +4,7 @@ od=`pwd`
 
 rm -rf /tmp/memories
 mkdir -p /tmp/memories
-cp -R appinfo l10n img js lib templates COPYING README.md exiftest* composer* /tmp/memories
+cp -R appinfo l10n img js lib templates COPYING README.md transcoder.yaml exiftest* composer* /tmp/memories
 
 cd /tmp
 rm -f memories/appinfo/screencap* memories/js/*.map

transcoder.yaml

@@ -0,0 +1,59 @@
+# allow debug outputs
+debug: false
+
+# mount debug pprof endpoint at /debug/pprof/
+pprof: false
+
+# bind server to IP:PORT (use :47788 for all connections)
+# DO NOT expose this port to the world
+bind: localhost:47788
+
+# X-Forwarded-For headers will be used to determine the client IP
+proxy: true
+
+# For static files
+vod:
+  # Root directory for media
+  media-dir: /
+
+  # Temporary transcode output directory, if empty, default tmp folder will be used
+  transcode-dir: /tmp/transcoder/data
+
+  # Available video profiles
+  # Do not change these
+  video-profiles:
+    360p:
+      width: 640 # px
+      height: 360 # px
+      bitrate: 800 # kbps
+    480p:
+      width: 640
+      height: 480
+      bitrate: 1200
+    720p:
+      width: 1280
+      height: 720
+      bitrate: 2800
+    1080p:
+      width: 1920
+      height: 1080
+      bitrate: 5000
+
+  # Use video keyframes as existing reference for chunks split
+  # Using this might cause long probing times in order to get
+  # all keyframes - therefore they should be cached
+  video-keyframes: false
+
+  # Single audio profile used
+  audio-profile:
+    bitrate: 192 # kbps
+
+  # If cache is enabled
+  cache: true
+  # If dir is empty, cache will be stored in the same directory as media source
+  # If not empty, cache files will be saved to specified directory
+  cache-dir: /tmp/transcoder/cache
+
+  # OPTIONAL: Use custom ffmpeg & ffprobe binary paths
+  ffmpeg-binary: ffmpeg
+  ffprobe-binary: ffprobe