commit 9b0340e34a1e053d6ce14037776adf9fd6e412f1
author Cristy <mikayla-grace@urban-warrior.org> Mon Apr 27 19:36:49 2020 -0400
committer Cristy <mikayla-grace@urban-warrior.org> Mon Apr 27 19:36:49 2020 -0400
tree 56f7a985af9515a959cd36f343dffb74b9a094e2
parent ff99c23de7eb59b6525f4cf27e2266e859e0883a

https://github.com/ImageMagick/ImageMagick/discussions/1949

ChangeLog

diff --git a/ChangeLog b/ChangeLog
index 5a715e1..44ce0fc 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,7 @@
 2020-04-27  7.0.10-10 Cristy  <quetzlzacatenango@image...>
   * Correction to allocate a colormap of the maximum colors when color
     reducing an image sequence.
+  * Write to stdout for mp4:-.
 
 2020-04-25  7.0.10-9 Cristy  <quetzlzacatenango@image...>
   * Release ImageMagick version 7.0.10-9, GIT revision 17190:13fdcd1:20200426.

coders/mpeg.c

diff --git a/coders/mpeg.c b/coders/mpeg.c
index 260b561..d94a2bd 100644
--- a/coders/mpeg.c
+++ b/coders/mpeg.c
@@ -425,7 +425,11 @@
   /*
     Copy source file to destination.
   */
-  destination_file=open_utf8(destination,O_WRONLY | O_BINARY | O_CREAT,S_MODE);
+  if (strcmp(destination,"-") == 0)
+    destination_file=fileno(stdout);
+  else
+    destination_file=open_utf8(destination,O_WRONLY | O_BINARY | O_CREAT,
+      S_MODE);
   if (destination_file == -1)
     return(MagickFalse);
   source_file=open_utf8(source,O_RDONLY | O_BINARY,0);
@@ -456,7 +460,8 @@
     if ((size_t) count != length)
       break;
   }
-  (void) close(destination_file);
+  if (strcmp(destination,"-") != 0)
+    (void) close(destination_file);
   (void) close(source_file);
   buffer=(unsigned char *) RelinquishMagickMemory(buffer);
   return(i != 0 ? MagickTrue : MagickFalse);