Log stderr when we transcode

Now you shouldn't need to manually run the command to see what went
wrong.

4 files changed, 21 insertions, 3 deletions

diff --git a/docs/CHANGELOG b/docs/CHANGELOG
index fc228610..7795dd27 100755
--- a/docs/CHANGELOG
+++ b/docs/CHANGELOG
@@ -4,6 +4,7 @@
 
 --------------------------------------------------------------------------
   v.3.6-FUTURE
+    - stderr from the transcode command is now logged for debugging
     - Made database updates more robust and verified that a fresh 3.3.3.5 import
         will run through the updates without errors
     - Added support for external authenticators like pwauth (based on a patch by
diff --git a/lib/class/stream.class.php b/lib/class/stream.class.php
index 35d4eb64..c21f5823 100644
--- a/lib/class/stream.class.php
+++ b/lib/class/stream.class.php
@@ -135,8 +135,18 @@ class Stream {
 
         debug_event('downsample', "Downsample command: $command", 3);
 
+        $process = proc_open(
+            $command,
+            array(
+                1 => array('pipe', 'w'),
+                2 => array('pipe', 'w')
+            ),
+            $pipes
+        );
         return array(
-            'handle' => popen($command, 'rb'),
+            'process' => $process,
+            'handle' => $pipes[1],
+            'stderr' => $pipes[2],
             'format' => $transcode_settings['format']
         );
 
diff --git a/lib/log.lib.php b/lib/log.lib.php
index 19aad964..6f9df914 100644
--- a/lib/log.lib.php
+++ b/lib/log.lib.php
@@ -134,7 +134,10 @@ function debug_event($type, $message, $level, $file = '', $username = '') {
         $username = $GLOBALS['user']->username;
     }
 
-    log_event($username, $type, $message, $file);
+    // If the message is multiple lines, make multiple log lines
+    foreach (explode("\n", $message) as $line) {
+        log_event($username, $type, $line, $file);
+    }
 
 } // debug_event
 
diff --git a/play/index.php b/play/index.php
index a6638e0c..238e963f 100644
--- a/play/index.php
+++ b/play/index.php
@@ -462,7 +462,11 @@ else {
 if ($demo_id) { $democratic->delete_from_oid($oid,'song'); }
 
 if ($transcode) {
-    pclose($fp);
+    $stderr = fread($transcoder['stderr'], 8192);
+    fclose($transcoder['stderr']);
+    fclose($fp);
+    proc_close($transcoder['process']);
+    debug_event('transcode_cmd', $stderr, 5);
 }
 else {
     fclose($fp);