Merge commit 'cd0e0881'

* commit 'cd0e0881':
  avconv: support infinite loop for the loop option
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

doc/ffmpeg.texi

@@ -254,7 +254,8 @@ Do not overwrite output files, and exit immediately if a specified
 output file already exists.
 
 @item -stream_loop @var{number} (@emph{input})
-Set number of times input stream shall be looped.
+Set number of times input stream shall be looped. Loop 0 means no loop,
+loop -1 means infinite loop.
 
 @item -c[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})
 @itemx -codec[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})

ffmpeg.c

@@ -3698,7 +3698,8 @@ static int seek_to_start(InputFile *ifile, AVFormatContext *is)
                                         ifile->time_base);
     }
 
-    ifile->loop--;
+    if (ifile->loop > 0)
+        ifile->loop--;
 
     return ret;
 }
@@ -3726,7 +3727,7 @@ static int process_input(int file_index)
         ifile->eagain = 1;
         return ret;
     }
-    if ((ret < 0) && (ifile->loop > 1)) {
+    if (ret < 0 && ifile->loop) {
         if ((ret = seek_to_start(ifile, is)) < 0)
             return ret;
         ret = get_input_packet(ifile, &pkt);